瑞典专利SE1450724A1 Cutting tool assembly with clamping unit including clamp and coolant plate

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专利摘要:
_30- ABSTRACT OF THE DISCLOSURE A clamp assembly to secure a cutting insert to a holder that includes a clamp that has a distalend and a clamp proj ection depending from the distal end of the clamp. There is a coolantplate that has a top plate surface and a bottom plate surface Wherein the top plate surfacecontains a recess that receives the clamp projection upon assembly of the clamp and thecoolant plate. The bottom plate surface contains a boWl having an open boWl end Wherein inoperation the boWl directs coolant through the open boWl end toward the cutting insert. Theassembly has a positioner extending between the clamp and the coolant plate so as tomaintain a position of the clamp relatiVe to the coolant plate upon the assembly of the clamp and the coolant plate.
公开号:SE1450724A1
申请号:SE1450724
申请日:2014-06-12
公开日:2014-12-15
发明作者:Nicholas J Henry；Shi Chen；Kent Peter Mizgalski；Samuel L Eichelberger
申请人:Kennametal Inc；
IPC主号:

专利说明:

[1] [0001] to secure the cutting insert to the holder. More specif1cally, the invention pertains to such a The invention pertains to a cutting tool assembly that uses a clamp assembly cutting tool assembly, and especially the clamp assembly, Wherein the clamp assemblycomprises a clamp and a coolant plate that facilitates enhanced delivery of coolant adjacentthe interface between the cutting insert and the Workpiece (i.e., the insert-chip interface) todiminish excessive heat at the insert-chip interface in the chipforrning removal of material from a Workpiece.
[2] [0002] comprise a cutting insert having a surface terrninating at a cutting edge and a tool holder Metal cutting tools for performing metal Working operations generally formed With a seat adapted to receive the insert. The cutting insert engages a Workpiece toremove material, and in the process forms chips of the material. Excessive heat at the insert-chip interface can negatively impact upon (i.e., reduce or shorten) the useful tool life of the cutting insert.
[3] [0003]through Welding) to the surface of the cutting insert. The build up of chip material on the For example, a chip generated from the Workpiece can sometimes stick (e.g., cutting insert in this fashion is an undesirable occurrence that can negatively impact upon theperformance of the cutting insert, and hence, the overall material removal operation. A flowof coolant to the insert-chip interface Will reduce the potential for such Welding. It Wouldtherefore be desirable to reduce excessive heat at the insert-chip interface to eliminate or reduce build up of chip material.
[4] [0004] occur instances in Which the chips do not exit the region of the insert-chip interface When the As another example, in a chipforrning material removal operation, there can chip sticks to the cutting insert. When a chip does not exit the region of the insert-chipinterface, there is the potential that a chip can be re-cut. It is undesirable for the tuming insertto re-cut a chip already removed from the Workpiece. A ﬂow of coolant to the insert-chipinterface Will facilitate the evacuation of chips from the insert-chip interface thereby minimizing the potential that a chip Will be re-cut.
[5] [0005] and decreases overall production efficiency. Excessive heat at the insert-chip interface There is an appreciation that a shorter useful tool life increases operating costs contribute to the welding of chip material and re-cutting of chips, both of which aredetrimental to production efficiency. There are readily apparent advantages connected withdecreasing the heat at the insert-chip interface wherein one way to decrease the temperature is to supply coolant to the insert-chip interface.
[6] [0006] pieces is a desirable event during the material removal operation. The coolant stream can It is undesirable for the chip to become long. Breaking of the chip into smaller impinge the chip to thereby break the chip into the smaller pieces.
[7] [0007] cutting. For example, some systems use extemal nozzles to direct coolant at the cutting edge Heretofore, systems operate to lower the cutting insert temperature during of the insert. The coolant serves not only to lower the temperature of the insert but also toremove the chip from the cutting area. The nozzles are often a distance of one to twelve inches away from the cutting edge. This is too far of a distance for effective cooling. Thefarther the coolant must travel, the more the coolant will mix with air and the less likely it will be to contact the tool-chip interface.
[8] [0008] There are cutting assemblies that utilize a clamping assembly that includes aclamp and a coolant plate. For example, in U.S. Patent No. 7,883,299 to Prichard et al. for aMetal Cutting System for Effective Coolant Delivery [K-2379USUS1] there is shown a metalcutting system that includes a shim and a cutting insert, as well as a clamp that engages aplate on top of the cutting insert. Coolant ﬂows toward the interface between the cutting insert and the workpiece.
[9] [0009]US2011/0020073 A1 for Cutting Insert Assembly and Components Thereof by Chen et al.[K-3049USUS1/U S Serial No. 12/ 874,591 ] there is shown a metal cutting assembly that As another example, in United States Patent Application Publication No. includes a holder that receives a shim and a cutting insert. The assembly also includes aclamp and a coolant plate. Coolant ﬂows toward the interface of the cutting insert and the workpiece.
[10] [0010] Further, referring to [K-4080USUS1] Co-pending U.S. Patent ApplicationSerial No. 13/664,568 for Cutting Insert Assembly and Components Thereof by Henry et al.,there is another cutting assembly that utilizes a clamping assembly that includes a clamp anda coolant plate, a pair of arms or prongs extended from the clamp to contact opposite side surfaces of the coolant plate and thereby secure the coolant plate in position. Such an -3- arrangement requires that the clamp and the coolant plate be in a parallel relationship, i.e., thecentral longitudinal axis of the clamp and the central longitudinal axis of the coolant plate areparallel to one another. There should be an appreciation that an arrangement in Which theclamp and coolant plate are parallel exhibits certain limitations in the context of trying toaccommodate cutting inserts of various sizes and various holders in Which the cutting insert has an orientation at different angles.
[11] [0011] One such limitation is that different sizes of clamps and/or coolant plates arenecessary to accommodate Variations in the cutting inserts and the orientations of the cuttinginsert in the holder. This necessitates that a number of different clamps and coolant plateshad to be kept in inventory to accommodate the variety of different cutting inserts. It Wouldtherefore be highly desirable to provide a clamping assembly of a clamp and coolant platethat exhibits a geometry so as to accommodate a number of different clamps and coolantplates Without having to keep in inventory a variety of different cutting inserts. A reduction in the number of different clamps and/or coolant plates in inventory Would result in a cost savings thereby increasing the overall efficiency of the cutting operation.SUMMARY
[12] [0012] The inventors have recognized the problems and/or drawbacks and/orlimitations associated With earlier cutting assemblies that use coolant for delivery to theinterface of the cutting insert and the Workpiece. The inventors have developed an inventivecutting tool assembly, as Well as components thereof, that overcome these problems and/or draWbacks and/or limitations.
[13] [0013] insert to a holder Wherein the clamp assembly comprises a clamp that has a distal end and a In one form thereof, the invention is a clamp assembly to secure a cutting clamp projection depending from the distal end of the clamp. There is a coolant plate havinga top plate surface and a bottom plate surface Wherein the top plate surface containing arecess Wherein the recess receives the clamp proj ection upon assembly of the clamp and thecoolant plate. The bottom plate surface contains a boWl having an open boWl end Wherein inoperation the boWl directs coolant through the open boWl end toward the cutting insert.There is a positioner extending between the clamp and the coolant plate so as to maintain aposition of the clamp relative to the coolant plate upon the assembly of the clamp and the coolant plate.
[14] [0014] In another form thereof, the invention is a cutting assembly for chipforrningcutting of a workpiece. The cutting assembly comprises a cutting insert, and a holder havinga seat wherein the seat receives the cutting insert upon assembly of the cutting insert to theholder. There is a clamp assembly to secure a cutting insert to a holder wherein the clampassembly comprises a clamp that has a distal end and a clamp proj ection depending from thedistal end of the clamp. There is a coolant plate having a top plate surface and a bottom platesurface wherein the top plate surface containing a recess wherein the recess receives theclamp projection upon assembly of the clamp and the coolant plate. The bottom plate surfacecontains a bowl having an open bowl end wherein in operation the bowl directs coolantthrough the open bowl end toward the cutting insert. There is a positioner extending between the clamp and the coolant plate so as to maintain a position of the clamp relative to the coolant plate upon the assembly of the clamp and the coolant plate.
[15] [0015] cooperation with a clamp in a cutting assembly with a cutting insert and a clamp having a In yet another form thereof, the invention is a coolant plate for use in clamp projection and the clamp containing a threaded aperture wherein a threaded memberextends between the threaded aperture of the clamp and the coolant plate. The coolant platecomprises a top plate surface and a bottom plate surface. The top plate surface contains arecess wherein the recess receives a clamp proj ection from the clamp upon assembly of theclamp and the coolant plate. The bottom plate surface contains a bowl having an open bowlend wherein in operation the bowl directs coolant through the open bowl end toward a cuttinginsert. The coolant plate contains a threaded aperture that receives the threaded memberupon assembly of the clamp to the coolant plate so as to maintain a position of the clamp relative to the coolant plate.
[16] [0016] cooperation with a clamp in a cutting assembly with a cutting insert and a clamp having a In still another form thereof, the invention is a coolant plate for use in clamp post and a clamp projection. The coolant plate comprises a top plate surface and abottom plate surface. The top plate surface contains a recess wherein the recess receives aclamp projection from the clamp upon assembly of the clamp and the coolant plate. Thebottom plate surface contains a bowl having an open bowl end wherein in operation the bowldirects coolant through the open bowl end toward a cutting insert. The bottom plate surfacefurther contains a rearward notch wherein the rearward notch receives a clamp post from the clamp upon assembly of the clamp and the coolant plate.
[17] [0017] The following is a brief description of the drawings that form a part of this patent application:
[18] [0018] FIG. 1 is an isometric View of one specific embodiment of a cutting toolassembly;[0019] FIG. 2 is an isometric View from the top of a first specific embodiment of a coolant plate wherein the coolant plate is useful with the specific embodiment of FIG. 1;
[20] [0020] FIG. 2A is a bottom View of the coolant plate of FIG. 2;
[21] [0021] FIG. 2B is a cross-sectional View of the coolant plate of FIG. 2;
[22] [0022] FIG. 3 is a cross-sectional schematic View of the speciﬁc embodiment of FIG.1 showing the relationship between the components of the cutting tool assembly and the ﬂowof coolant;
[23] [0023] FIG. 4 is an isometric View from the top of a second speciﬁc embodiment of acoolant plate;
[24] [0024] FIG. 4A is a bottom View of the coolant plate of FIG. 4;
[25] [0025] FIG. 4B is a cross-sectional View of the coolant plate of FIG. 4;
[26] [0026] FIG. 5 is an isometric View from the top of a third specific embodiment of acoolant plate;
[27] [0027] FIG. 5A is a bottom View of the coolant plate of FIG. 5;
[28] [0028] FIG. 5B is a cross-sectional View of the coolant plate of FIG. 5;
[29] [0029] FIG. 6 is an isometric View of another specific embodiment of a cutting toolassembly;
[30] [0030] FIG. 7 is an isometric View from the top of a fourth specific embodiment of a coolant plate useful with the specific embodiment of FIG. 6;
[31] [0031] FIG. 7A is a bottom View of the coolant plate of FIG. 7;[0032] FIG. 7B is a cross-sectional View of the coolant plate of FIG. 7;[0033] FIG. 7C is an isometric View of the top surface of the coolant plate of FIG. 7; -6-
[34] [0034] FIG. 8 is an isometric View from the top of a fifth specific embodiment of acoolant plate;
[35] [0035] FIG. 8A is a bottom View of the coolant plate of FIG. 8;
[36] [0036] FIG. 8B is a cross-sectional View of the coolant plate of FIG. 8;
[37] [0037] FIG. 9 is an isometric View from the top of a sixth specific embodiment of acoolant plate;
[38] [0038] FIG. 9A is a bottom View of the coolant plate of FIG. 9;
[39] [0039] FIG. 10 is an isometric View of a first specific embodiment of a clamp member for use with the specific embodiment of FIG. 1;
[40] [0040] FIG. 11 is a bottom View of the clamp member of FIG. 10;[0041] FIG. 12 is a cross-sectional View of the clamp member of FIG. 10;[0042] FIG. 13 is an isometric View of a second specific embodiment of a clamp member for use with the specific embodiment of FIG. 6;
[43] [0043] FIG. 14 is a bottom View of the clamp member of FIG. 13;[0044] FIG. 15 is a cross-sectional View of the clamp member of FIG. 13;[0045] FIG. 16 is an isometric View from top of the clamp and diVerter plate of the specific embodiment of FIG. 2;
[46] [0046]the specific embodiment of FIG. 16.
[47] [0047]specific embodiment of FIG. 9; FIG. 18 is an isometric View from top of the clamp and diVerter plate of the
[48] [0048]the specific embodiment of FIG. 18; FIG. 19 is an isometric View from bottom of the clamp and diVerter plate of
[49] [0049] FIG. 20 is an isometric View of a speciﬁc embodiment of a cutting toolassembly;
[50] [0050] FIG. 21 is an isometric View of a specific embodiment of a clamp member;[0051] FIG. 22 is a cross-sectional View of the clamp member of FIG. 21 taken along section line 22-22 of FIG. 21; _7_
[52] [0052]use With the cutting tool assembly of FIG. 20; FIG. 23 is an isometric view of a specific embodiment of a coolant plate for
[53] [0053] FIG. 24 is a bottom view of the coolant plate of FIG. 23;
[54] [0054]section line 25-25 of FIG. 24; FIG. 25 is a cross-sectional view of the coolant plate of FIG. 23 taken along
[55] [0055] FIG. 26 is a cross-sectional view of the cutting tool assembly of FIG. 20;[0056] FIG. 27 is an isometric view of a specific embodiment of a cutting toolassembly;
[57] [0057] FIG. 28 is an isometric view of a specific embodiment of a coolant plate to be used in the cutting tool assembly of FIG. 27;
[58] [0058] FIG. 29 is a bottom view of the coolant plate of FIG. 28;
[59] [0059]section line 30-30 of FIG. 29; FIG. 30 is a cross-sectional view of the coolant plate of FIG. 28 taken along
[60] [0060]be used With the cutting tool assembly of FIG. 27; and FIG. 31 is an isometric view of a specific embodiment of a clamp member to
[61] [0061]section line 32-32 of FIG. 31.
[62] [0062] chipforrning material removal operation. In a chipforrning material removal operation, the The present invention pertains to a cutting tool assembly useful for a cutting insert engages a Workpiece to remove material from a Workpiece typically in the formof chips. A material removal operation that removes material from the Workpiece in the formof chips typically is known by those skilled in the art as a chipforrning material removaloperation. The book Machine Shop Practice [Industrial Press Inc., New York , New York(1981)] by Moltrecht presents at pages 199-204 a description, inter alía, of chip formation, asWell as different kinds of chips (i.e., continuous chip, discontinuous chip, segmental chip).Moltrecht reads [in part] at pages 199-200, “When the cutting tool first makes contact Withthe metal, it compresses the metal ahead of the cutting edge. As the tool advances, the metal ahead of the cutting edge is stressed to the point Where it Will shear intemally, causing the -3- grains of the metal to deforrn and to ﬂow plastically along a plane called the shear plane When the type of metal being cut is ductile, such as steel, the chip will come off in a CC continuous ribbon . Moltrecht goes on to describe formation of a discontinuous chip anda segmented chip. As another example, the text found at pages 302-315 of the ASTE ToolEngineers Handbook, McGraw Hill Book Co., New York, New York (1949) provides alengthy description of chip formation in the metal cutting process. At page 303, the ASTEHandbook makes the clear connection between chip formation and machining operationssuch as tuming, milling and drilling. The following patent documents discuss the formationof chips in a material removal operation: U.S. Patent No. 5,709,907 to Battaglia et al.(assigned to Kennametal Inc.), U.S. Patent No. 5,722,803 to Battaglia et al. (assigned to Kennametal Inc.), and U.S. Patent No. 6,161,990 to Oles et al. (assigned to Kennametal Inc.).
[63] [0063] of a cutting tool assembly generally designated as 20. Cutting tool assembly 20 comprises a Referring to the drawings, FIG. 1 and FIG. 3 show a first specific embodiment holder 22 that has a clamp bore 23. Holder 22 further has a forward end 24 and a rearwardend 26. Holder 22 contains a coolant passage 28 that has an entrance (not illustrated) and anexit 32. Holder 22 further has a seat 36 which exhibits a seating surface 38. Holder 22 contains a seat bore 40 with a threaded portion 42.
[64] [0064] aperture 48 and a cutting insert 52 that contains a central aperture 54. Cutting tool assembly Cutting tool assembly 20 ﬁarther includes a shim 46 that contains a central 20 also includes a locking pin 60 that has an upper end 62 and a lower end 64 and a central longitudinal bore 66 wherein the bore 66 has a threaded section 68.
[65] [0065] 20 further includes a first speciﬁc embodiment of a clamp assembly 80. Clamp assembly 80 Still referring to FIGS. 1 and 3, as well as FIGS 10-12, cutting tool assembly includes a clamp member 82 which has a forward end 84, a rearward end 86, a top surface 88and a bottom surface 90. Clamp member 82 has a clamp base portion 94, which contains acylindrical bore 95. Clamp member 82 has a clamp arm 96, which has a distal end 97. Thereis a clamp proj ection 98 in the form of a boss depending from the adjacent distal end 97 ofthe clamp arm 96. The distance from the center of the cylindrical bore 95 to the center of the clamp projection 98 is distance RRR.
[66] [0066]post 102 (see FIG. 3). The clamp post 102 has a proximate end 118 and a distal end 120 that The clamp member 82 further contains a post bore 100 that receives a clamp -9- projects out from the post bore 100. As will be described hereinafter, the portion of theclamp post 102 adjacent the distal end 120 is received within a rearward notch (described hereinafter) in the coolant plate to help secure and align the coolant plate relatiVe to the clamp 82.
[67] [0067]upper threaded portion 106 with a socket 108 and a lower threaded section 110 with a socket The clamp assembly 80 further includes a threaded member 104 that has an 112. Cylindrical bore 95 has a threaded section 114. Clamp bore 23 has a threaded section116. The upper threaded section 106 of the threaded member 104 threadedly engages thethreaded upper section 114 of the bore 95. The lower threaded section 110 of the threadedmember 104 threadedly engages the threaded section 116 of the bore 23. The threadedmember 104 securely fastens the clamp 82 to the holder 22, and as will be describedhereinafter, the clamp 82 tightly presses down on the coolant plate, which in tum, presses down on the cutting insert 52 and the shim 46.
[68] [0068]of a coolant plate generally designated as 130. Coolant plate 130 has a forward end 132, a Referring to FIGS. 2, 2A and 2B, there is shown a first specific embodiment rearward end 134, a top plate surface 136 and a bottom plate surface 138. The top platesurface 136 contains a recess 140, which is in the form of a circular depression. Coolantplate 130 has a sloped forward surface region 142, swept-back opposite side surface regions144, 146 and a generally U-shaped rear surface region 148 that extends between the oppositeside surface regions 144, 146. There is a rearward post notch 154 at the juncture of thebottom plate surface 138 and the rear surface 148. The rearward post notch 154 has an openend 156 and a closed end 158. The bottom plate surface 138 of the coolant plate 130 containsa bowl 160 that has an open end 162 and a closed end 164. The coolant plate 130 has acentral longitudinal axis A-A. The rearward post notch 154 has a central longitudinal axis B-B. Central longitudinal axis A-A is generally coaxial with the central longitudinal axis B-B.The axial length of coolant plate 130 is AAA and the maximum transVerse dimension (orwidth) is BBB. The distance from the center of the recess 140 to the forward end 132 of thecoolant plate 130 is CCC.
[69] [0069] Referring back to FIG. 3, in operation, coolant, which is typically underpressure, passes through the coolant passage 28 so as to exit the coolant passage 28 at the exit32 thereof As shown by the arrows 166, coolant ﬂows through the central longitudinal bore 66 of the locking pin 60. Coolant enters into the Volume defined by the bowl 160 in the _10- coolant plate 130 and impinges the surfaces that define the bowl 160 so that coolant isdirected so as to exit out of the open end 162 of the bowl 160. The coolant travels toward theinterface between the cutting insert 52 and the workpiece 168. The coolant enters and exitsthe bowl in a like fashion for each one of the specific embodiments of the coolant plates thatare described hereinafter. The capability to provide adequate coolant ﬂow to the interfacebetween the cutting insert and the workpiece has advantages. For example, a chip generatedfrom the workpiece can sometimes stick (e.g., through welding) to the surface of the cuttinginsert. The build up of chip material on the cutting insert in this fashion is an undesirableoccurrence that can negatively impact upon the performance of the cutting insert, and hence,the overall material removal operation. A ﬂow of coolant to the insert-chip interface willreduce the potential for such welding. It would therefore be desirable to reduce excessiveheat at the insert-chip interface to eliminate or reduce build up of chip material. Further, in achipforrning material removal operation, there can occur instances in which the chips do notexit the region of the insert-chip interface when the chip sticks to the cutting insert. When achip does not exit the region of the insert-chip interface, there is the potential that a chip canbe re-cut. It is undesirable for the tuming insert to re-cut a chip already removed from theworkpiece. A ﬂow of coolant to the insert-chip interface will facilitate the evacuation ofchips from the insert-chip interface thereby minimizing the potential that a chip will be re-cut. In addition, it is undesirable for the chip to become long. Breaking of the chip intosmaller pieces is a desirable event during the material removal operation. The coolant stream can impinge the chip to thereby break the chip into the smaller pieces.
[70] [0070] embodiment of a coolant plate generally designated as 170. Coolant plate 170 has a central Referring to FIGS. 4, 4A and 4B, there is shown a second specific longitudinal axis C-C. Coolant plate 170 has a forward end 172, a rearward end 174, a topplate surface 176 and a bottom plate surface 178. The top plate surface 176 contains a recess180, which is in the form of an elongate trough. Recess 180 has a central longitudinal axis D-D. Recess 180 is disposed at angle Z relative to the central longitudinal axis C-C of coolantplate 170. Angle Z I equal to about 90 degrees. Coolant plate 170 has a sloped forwardsurface region 182, swept-back opposite side surface regions 184, 186 and a U-shaped rearsurface region 188 that extends between the opposite side surface regions 184, 186. There isa rearward post notch 200 at the juncture of the bottom plate surface 178 and the rear surface 188. The rearward post notch 200 has an open end 202 and a closed end 204. The rearward _11- post notch 200 has a central longitudinal axis E-E. The bottom plate surface 178 of thecoolant plate 170 contains a bowl 208 that has an open end 210 and a closed end 212. Asdescribed above, coolant travels into the bowl 208 and impinges the surfaces defining thebowl 208 whereby coolant exits the bowl 208 via the open end 210 thereof The axial lengthof coolant plate 170 is DDD and the maximum transverse dimension (or width) is EEE. Thedistance from the center of the recess 180 to the forward end 172 of the coolant plate 170 is EEE.
[71] [0071]of a coolant plate generally designated as 220. Coolant plate 220 has a central longitudinal Referring to EIGS. 5, 5A and 5B, there is shown a third specific embodiment axis G-G. Coolant plate 220 has a forward end 222, a rearward end 224, a top plate surface234 and a bottom plate surface 236. The top plate surface 234 contains a recess 238, which isin the form of a circular depression. Coolant plate 220 has a sloped forward surface 226,swept-back opposite side surfaces 228, 230, and a semi-circular rear surface 232 that extendsbetween the swept-back opposite side surface regions 228, 230. There is a first rearward postnotch 242 at the juncture of the bottom plate surface 236 and the rear surface 232. The firstrearward post notch 242, which has a central longitudinal axis H-H, has an open end 244 anda closed end 246. There is a second rearward post notch 248 at the juncture of the bottomplate surface 236 and the rear surface 232. The second rearward post notch 248, which has acentral longitudinal axis I-I, has an open end 250 and a closed end 252. The first rearwardpost notch 242 is disposed at angle W relative to the second rearward post notch 248. AngleW is the angle between a central longitudinal axis H-H and a central longitudinal axis I-I. Inthe specific embodiment, angle W is equal to about 40 degrees. The bottom plate surface 236of the coolant plate 220 contains a bowl 256 that has an open end 258 and a closed end 260.As described above, coolant travels into the bowl 256 and impinges the surfaces defining thebowl 256 whereby coolant exits the bowl 256 via the open end 258 thereof. The axial lengthof coolant plate 220 is GGG and the maximum transverse dimension (or width) is HHH. Thedistance from the center of the recess 238 to the forward end 222 of the coolant plate 220 is III.
[72] [0072]assembly generally designated as 410. Cutting assembly 410 includes a holder 412 that has a Referring to EIG. 6, there is shown a second specific embodiment of a cutting forward end 414 and a rearward end 416. The holder 412 contains a seat 418 adj acent to the forward end 414. The seat 418 receives a cutting insert 420 and shim (not illustrated). _12-
[73] [0073] embodiment of a coolant plate generally designated as 270. Coolant plate 270 has a central Referring to FIGS. 7, 7A, 7B, and 7C, there is shown a fourth speciﬁc longitudinal axis J-J. Coolant plate 270 has a forward end 272, a rearward end 274, a topplate surface 276, and a bottom plate surface 278. The top plate surface 276 contains a pairof intersecting recesses 280, 282. Referring to FIG. 7C, one recess 280, which is in the forrnof an elongate trough, has a central longitudinal axis M-M, and the other recess 282, which isin the forrn of an elongate trough, has a central longitudinal axis N-N. Central longitudinalaxis M-M is disposed at angle LLL relatiVe to the transverse axis of coolant plate 270. AngleLLL is equal to about 20 degrees. Recess 280 is disposed at angle EE relative to recess 282.Angle EE is the angle between central longitudinal axes M-M and N-N. Angle EE is equal toabout 40 degrees. Further, each recess 280, 282 (or notch) has a notch disposition angle AA,BB, respectively. The notch disposition angle (AA, BB) is the angle at which the centrallongitudinal axis (M-M, N-N) is disposed relative to the coolant plate central longitudinalaxis J-J. In this specific embodiment, angle AA and angle BB each equals 70 degrees.Coolant plate 270 has a sloped forward surface region 284, swept-back opposite side surfaceregions 286, 288, and a U-shaped rear surface region 290 extending between the oppositeside surface regions 286, 288. The axial length of coolant plate 270 is JJJ and the maximum transverse dimension (or width) is KKK.
[74] [0074] surface 278 and the rear surface 290. The first rearward post notch 300, which has a central There is a first rearward post notch 300 at the juncture of the bottom plate longitudinal axis K-K, has an open end 302 and a closed end 304. There is a second rearwardpost notch 306 at the juncture of the bottom plate surface 278 and the rear surface 290. Thesecond rearward post notch 306, which has a central longitudinal axis L-L, has an open end308 and a closed end 310. The first rearward post notch 300 is disposed at angle X relative tothe second rearward post notch 306. Angle X is the angle between central longitudinal axesK-K and L-L. Angle X is equal to about 40 degrees. The relationships between angles AA,BB and X are: X/2 + AA = 90 degrees and AA = BB. Further, the relationship between therearward post notches (i.e., first rearward post notch 300 and second rearward post notch306) and the recesses 280, 282 are: (1) the central longitudinal axis K-K of the first rearwardpost notch 300 is perpendicular to the central longitudinal axis M-M of recess 280, and (2)the central longitudinal axis L-L of the second rearward post notch 306 is perpendicular to the central longitudinal axis N-N of recess 282. _13-
[75] [0075] has an open end 318 and a closed end 320. As described above, coolant travels into the bowl The bottom plate surface 278 of the coolant plate 270 contains a bowl 316 that 316 and impinges the surfaces defining the bowl 316 whereby coolant exits the bowl 316 viathe open end 318 thereof
[76] [0076]of a coolant plate generally designated as 326. Coolant plate 326 has a central longitudinal Referring to FIGS. 8, 8A and 8B, there is shown a fifth speciﬁc embodiment axis O-O. Coolant plate 326 has a forward end 328, a rearward end 330, a top plate surface332, and a bottom plate surface 334. The top plate surface 332 contains a recess 336, whichis in the form of a circular depression. Coolant plate 326 has a sloped forward surface region,swept-back opposite side surface regions, and a U-shaped rear surface region 338 extending between the opposite side surface regions.
[77] [0077] surface 334 and the rear surface 338. The first rearward post notch 340, which has a central There is a first rearward post notch 340 at the juncture of the bottom plate longitudinal axis P-P, has an open end and a closed end. There is a second rearward postnotch 342 at the juncture of the bottom plate surface 334 and the rear surface 338. Thesecond rearward post notch 342, which has a central longitudinal axis Q-Q, has an open endand a closed end. The first rearward post notch 340 is disposed at angle Y relative to thesecond rearward post notch 342. Angle Y is the angle between central longitudinal axes P-Pand Q-Q. Angle Y is equal to about 80 degrees. The axial length of coolant plate 326 isMMM and the maximum transverse dimension (or width) is NNN. The distance from the center of the recess 336 to the forward end 328 of the coolant plate 326 is OOO.
[78] [0078] has an open end 348 and a closed end 346. As described above, coolant travels into the bowl The bottom plate surface 334 of the coolant plate 326 contains a bowl 344 that 344 and impinges the surfaces defining the bowl 344 whereby coolant exits the bowl 344 viathe open end 348 thereof
[79] [0079] coolant plate generally designated as 354. Coolant plate 354 has a central longitudinal axis Referring to FIGS. 9 and 9A, there is shown a sixth specific embodiment of a R-R. Coolant plate 354 has a forward end 356, a rearward end 358, a top plate surface 360,and a bottom plate surface 362. The top plate surface 360 contains one recess 364, which isin the form of an elongate trough and has a central longitudinal axis S-S. The top plate surface 360 further contains another recess 366, which is in the form of an elongate trough _14- and has a central longitudinal axis T-T. One recess 364 intersects with the other recess 366.One recess 364 is disposed relative to the central longitudinal axis R-R of the coolant plate354 at angle CC. Other recess 366 is disposed relative to the central longitudinal axis R-R ofthe coolant plate 354 at angle DD. One recess 364 is disposed relative to the other recess 366at angle equal to the sum of angles CC and DD. Coolant plate 354 has a sloped forwardsurface region, swept-back opposite side surface regions, and a U-shaped rear surface region367 extending between the opposite side surface regions. The axial length of coolant plate 354 is PPP and the maximum transverse dimension (or width) is QQQ.
[80] [0080] surface 362 and the rear surface 367. The first rearward post notch 368, which has a central There is a first rearward post notch 368 at the juncture of the bottom plate longitudinal axis U-U, has an open end and a closed end. There is a second rearward postnotch 370 at the juncture of the bottom plate surface 362 and the rear surface 367. Thesecond rearward post notch 370, which has a central longitudinal axis V-V, has an open endand a closed end. The first rearward post notch 368 is disposed at angle HH relative to thesecond rearward post notch 370. Angle HH is the angle between central longitudinal axes U- U and V-V. Angle HH is equal to about 80 degrees.
[81] [0081] has an open end 376 and a closed end 374. As described above, coolant travels into the bowl The bottom plate surface 362 of the coolant plate 354 contains a bowl 372 that 372 and impinges the surfaces defining the bowl 372 whereby coolant exits the bowl 372 viathe open end 376 thereof
[82] [0082]embodiment of a clamp generally designated as 379 that includes a clamp 380. Clamp 380 Referring to FIGS. 13 through 15, there is shown a second specific has a forward end 382, a rearward end 384, a top clamp surface 386 and a bottom clampsurface 388. Clamp 380 has a clamp base 392 that contains a cylindrical bore 394. Clamp380 further has an arm 396 with a distal end 397 wherein a clamp proj ection in the form of arib 398 projects there from. The clamp 380 contains a post bore 400, which receives a clamppost 402. The distance from the center of the cylindrical bore 394 to the center of the clampprojection 398 is SSS.
[83] [0083] _15- Set forth below is Table I that sets forth the dimensions of speciﬁc embodiments of the Various coolant plates and clamps described above.
[84] [0084] As described hereinabove, there are two basic clamp designs; namely, the first speciﬁc embodiment of the clamp 82 which has a clamp proj ection 98 in the forrn of a boss.
[85] [0085] The coolant plates (130, 220, 326) can have different orientations relative tothe clamp 82 depending upon the structure and positioning of the coolant plates. Forexample, referring to FIGS. 16 and 17, coolant plate 130 contains only a single rearWard postnotch 154 so that When assembly to the clamp 82, the clamp post 102 only can be received bythe rearWard post notch 154, and thus, the first specific embodiment coolant plate 130 canonly exhibit one position relative to the clamp 82, and that is Where the central longitudinalaxis A-A of the coolant plate 130 is parallel to (and essentially coaxial With) the centrallongitudinal axis P-P of the clamp arm 96 of the clamp 82. In the case of the third specificembodiment coolant plate 220, the clamp post 102 may be received either by the firstrearWard post notch 242 or the second rearWard post notch 248. In either one of theseorientations, the central longitudinal axis G-G of the coolant plate 220 Will be disposed atangle W from the central longitudinal axis P-P of the clamp arm 96 of the clamp 82. As onecan appreciate, the ability to vary the orientation of the coolant pate relative to the clamp provides advantages.
[86] [0086] In the case of the fifth specific embodiment coolant plate 326, the clamp post102 may be received in any one of the first rearward post notch 340, the second rearWard postnotch 342. As is apparent from FIG. 8A, each of the rearWard post notches (340, 342)exhibits a different orientation relative to the central longitudinal axis O-O of the coolantplate 326, and hence, Would exhibit a different orientation With respect to the centrallongitudinal axis P-P of the clamp arm 96 of the clamp 82. When the clamp post 102 isWithin the first rearWard post notch 340, the coolant plate 326 has an orientation such that thecentral longitudinal axis O-O there of is disposed at an angle Y/2 With the central longitudinalaxis P-P of the clamp arm 96 of the clamp 82. When the clamp post 102 is Within the second rearWard post notch 342, the coolant plate 326 has an orientation such that the central longitudinal axis O-O there of is disposed at an angle Y/2 With the central longitudinal axis P- _17- P of the clamp arm 96 of the clamp 82. As one can appreciate, the ability to vary the orientation of the coolant plate relative to the clamp provides advantages.
[87] [0087] in the form of a rib. The rib-style of clamp projection 398 is intended to engage a selected The second specific embodiment of the clamp 380 has a clamp proj ection 398 one of the recesses in the forrn of a trough in the top plate surface of the specific coolantplate. The specific coolant plates designed to cooperate With the second embodiment of theclamp 380 comprise the second specific embodiment coolant plate 170, the fourth specificembodiment coolant plate 270, and the sixth specific embodiment coolant plate 354. As Willbecome apparent, there is a correspondence between the rearward post notch that receives theclamp post 402 and the recess that receives the rib-style clamp proj ection 398 of the clamp 380.
[88] [0088]in FIGS. 4-4B, When the clamp 380 is assembly to the coolant plate 170, the rib-style In reference to the second specific embodiment coolant plate 170 as illustrated projection 398 is received Within the recess 180 and the clamp post 402 is received Within therearWard post notch 200. In this orientation, the clamp 380 is in generally parallel alignmentWith the coolant plate 370. In other Words, the central longitudinal axis QQ-QQ of the clamp380 is generally parallel to the central longitudinal axis C-C of coolant plate 170.
[89] [0089]in FIGS. 7-7C, When the clamp 380 is assembly to the coolant plate 270, the rib-style In reference to the fourth specific embodiment coolant plate 270 as illustrated projection 398 can be selectively received Within either recess 280 or recess 282. When therib-style projection 398 is in recess 280, the clamp post 402 is received in the rearward postnotch 306. When the rib-style projection 398 is in recess 282, the clamp post 402 is receivedin the rearWard post notch 300. As is apparent, the orientation of the coolant plate 270relative to the clamp 380 is different depending upon the recess ad the rearward post notch engaged by the rib-style projection 398 and the clamp post 402.
[90] [0090]FIGS. 9-9A, When the clamp 380 is assembled to the coolant plate 354, the rib-style In reference to the sixth specific embodiment coolant plate 354, referring to projection 398 can be selectively received Within either recess 364 or recess 366. When therib-style projection 398 is in recess 364, the clamp post 402 is received in the rearward postnotch 370. When the rib-style projection 398 is in recess 366, the clamp post 402 is received in the rearWard post notch 368. As is apparent, the orientation of the coolant plate 354 _18- relative to the clamp 380 is different depending upon the recess and the rearward post notch engaged by the rib-style projection 398 and the clamp post 402.
[91] [0091] There should be an appreciation that the clamp post 102 of the clamp 82 andthe clamp post 402 of the clamp 380 are positioners that maintain the position of the clamp(82, 380) to the corresponding coolant plate upon assembly of the clamp and the coolantplate. In this regard, the clamp post is received within the corresponding notch in the coolantplate thereby maintaining the relative position or orientation of the clamp and the coolant plate.
[92] [0092] Referring to the drawings, FIGS. 20 and 26 show another specific embodimentof a cutting tool assembly generally designated as 500. Cutting tool assembly 500 functionsin basically the same way to effectively deliver coolant to the cutting insert-workpieceinterface as do the cutting tool assemblies 20 and 410. While it will be described in moredetail hereinafter, the same is true for the cutting tool assembly 622 in that it functions inbasically the same way to deliver coolant to the cutting insert-workpiece interface as do the cutting tool assemblies 20 and 410.
[93] [0093] The significant structural differences between the cutting tool assemblies 20and 410 and cutting tool assemblies 500 and 622 resides in the way the coolant plate connectsor assembles to the clamping member. In cutting tool assemblies 20 and 410, a post from theclamping member engages or registers within a notch in the coolant plate to maintain therelative position between the coolant plate and the clamping member. In cutting toolassemblies 500 and 622, a threaded screw (or threaded member) threadedly engages anaperture (or threaded aperture) in the coolant plate, which does not contain a notch, and anaperture (or threaded aperture) in the clamping member, which does not contain a post, tosecure the coolant plate to the clamping member and maintain the relative position of the coolant plate to the clamping member. The coolant plate with the aperture is longer than the coolant plate with the notch.
[94] [0094] FIG. 26 illustrates only a part of the structure of the cutting tool assembly 500in comparison to the structure of the cutting tool assembly 20 illustrated in FIG. 3. It shouldbe understood that the structure not illustrated in FIG. 26 is similar to corresponding structure illustrated in FIG. 3. _19-
[95] [0095]Holder 502 further has a forward end 506 and a rearward end 508. Along the lines of holder Cutting tool assembly 500 comprises a holder 502 that has a clamp bore 504. 22, holder 502 contains a coolant passage that has an entrance and an exit. Holder 502further has a seat 5 l4 which exhibits a seating surface 5 16. Holder 502 contains a seat borewith a threaded portion. Cutting tool assembly 500 further includes a shim 522 that containsa central aperture 524 and a cutting insert 526 that contains a central aperture 528. Cuttingtool assembly 500 also includes a locking pin 530 that has a structure and function similar to the locking pin 60 described hereinabove.
[96] [0096]assembly 500 further includes a speciﬁc embodiment of a clamp assembly 540. Clamp Still referring to FIGS. 20 and 26, as well as FIGS. 2l-22, cutting tool assembly 540 includes a clamp member 542 which has a forward end 544, a rearward end546, a top surface 548 and a bottom surface 550. Clamp member 542 contains a threadedaperture 552. As will be described hereinafter, the threaded aperture 552 receives a threadedscrew 720, which has a screw head 722, which ﬁanctions to secure together the clamp member 542 and the coolant plate 580, which is described in more detail hereinafter.
[97] [0097]bore 556. Clamp member 542 has a clamp arm 558, which has a distal end 560. There is a Clamp member 542 has a clamp base portion 554, which contains a cylindrical clamp projection 562 in the form of a boss depending from the adjacent distal end 560 of theclamp arm 558. As will be described in more detail hereinafter, the boss or clamp proj ection562 engages the recess 590 in the coolant plate 580 when the coolant plate 580 and clamp member 542 are assembled together.
[98] [0098]upper threaded portion 568 with a socket 569 and a lower threaded section 570 with a socket The clamp assembly 540 further includes a threaded member 566 that has an 57l. Cylindrical bore 556 has a threaded section 574. Clamp bore 504 has a threaded section576. The upper threaded section 568 of the threaded member 566 threadedly engages thethreaded upper section 574 of the bore 556. The lower threaded section 570 of the threadedmember 566 threadedly engages the threaded section 576 of the clamp bore 504, which is inthe holder 502. The threaded member 566 securely fastens the clamp 542 to the holder 502when the coolant plate 580 is attached so as to then exert a force or bias against the cutting insert 526 and the shim 522. _20-
[99] [0099] plate generally designated as 580 wherein the coolant plate 580 is intended to be connected to Referring to FIGS. 23-25, there is shown a specific embodiment of a coolant the clamp member 542. Coolant plate 580 has a forward end 582, a rearward end 584, a topplate surface 586 and a bottom plate surface 588. The top plate surface 586 contains a recess590, which is in the forrn of a circular depression. The geometry or profile of the recess 590cooperates with the clamp proj ection (or boss) 562 to help maintain the position of thecoolant plate 580 relatiVe to the clamp member 542. Coolant plate 580 has a sloped forwardsurface region 592, swept-back opposite side surface regions 594, 596 and a generally U-shaped rear surface region 598 that extends between the opposite side surface regions 594,596. The bottom plate surface 588 of the coolant plate 580 contains a bowl 616 that has anopen end 618 and a closed end 620. The coolant plate 580 has a central longitudinal axis A”-A”.[0100]top plate surface 586 and the bottom plate surface 588 wherein aperture 600 has a top end Coolant plate 580 further contains an aperture 600 that extends between the 602 adjacent the top plate surface 586 and a bottom end 604 adj acent the bottom plate surface588. Aperture 600 has a cylindrically-shaped reduced dimension section 606 that is threaded.Aperture 600 further has a dome-shaped enlarged dimension section 608 with an arcuate top surface 610 and a generally cylindrical (or frusto-conical) side surface 612.
[101] [0101] As previously mentioned, the coolant plate 580 and the clamp member 542 areintended to function together. In this regard, the threaded screw 720 (see FIG. 26) is receivedin the aperture 600 and engages the reduced dimension threaded section 606. The threadedscrew 720 also threadedly engages the threaded aperture 552 in the clamping member 542.The threaded screw 720 is tightened to a position so as to secure the coolant plate 580 to theclamping member 542. As illustrated in FIG. 3, the distal end 724 of the treaded screw 720terrninates within the Volume of the threaded aperture 552. Typically, there is a gap or space726 between the underside surface of the head 722 of the screw 720 and the arcuate topsurface 610 of the dome-shaped enlarged dimension section 608 of the aperture 600. After the coolant plate 580 is secured to the clamp member 542, the clamp assembly 540 can then be secured to the holder 502.
[102] [0102] Referring back to FIG. 26, in operation, coolant, which is typically underpressure, passes through the coolant passage so as to exit the coolant passage at the exit thereof. As shown by the arrows, coolant ﬂows through the central longitudinal bore of the _21- locking pin 530. Coolant enters into the Volume defined by the bowl 616 in the coolant plate580 and impinges the surfaces that define the bowl 616 so that coolant is directed so as to exitout of the open end 618 of the bowl 616. The coolant travels toward the interface between the cutting insert 526 and the workpiece.
[103] [0103] cutting insert and the workpiece has advantages. For example, a chip generated from the The capability to provide adequate coolant ﬂow to the interface between the workpiece can sometimes stick (e. g., through welding) to the surface of the cutting insert.The build up of chip material on the cutting insert in this fashion is an undesirable occurrencethat can negatively impact upon the performance of the cutting insert, and hence, the overallmaterial removal operation. A ﬂow of coolant to the insert-chip interface will reduce thepotential for such welding. It would therefore be desirable to reduce excessive heat at theinsert-chip interface to eliminate or reduce build up of chip material. Further, in achipforrning material removal operation, there can occur instances in which the chips do notexit the region of the insert-chip interface when the chip sticks to the cutting insert. When achip does not exit the region of the insert-chip interface, there is the potential that a chip canbe re-cut. It is undesirable for the milling insert to re-cut a chip already removed from theworkpiece. A ﬂow of coolant to the insert-chip interface will facilitate the evacuation ofchips from the insert-chip interface thereby minimizing the potential that a chip will be re-cut. In addition, it is undesirable for the chip to become long. Breaking of the chip intosmaller pieces is a desirable event during the material removal operation. The coolant stream can impinge the chip to thereby break the chip into the smaller pieces.
[104] [0104] Referring to FIG. 27, there is shown another specific embodiment of a cuttingtool assembly generally designated as 622. Cutting tool assembly 622 includes a holder 624that has a forward end 625 and a rearward end 626. The holder 624 contains a seat 627adjacent to the forward end 625. The seat 627 receives a cutting insert 628 and shim (not illustrated).
[105] [0105]clamp assembly generally designated as 694 that includes a clamp 696. Clamp member 696 Referring to FIGS. 31 and 32, there is shown a specific embodiment of a has a forward end 698, a rearward end 700, a top clamp surface 702 and a bottom clampsurface 704. Clamp member 696 contains a threaded aperture 705. Clamp member 696 has aclamp base 706 that contains a cylindrical bore 708. Cylindrical bore 708 has an upperthreaded section 709 with the remainder of the cylindrical bore 708 being smooth. Clamp _22- member 696 further has an arrn 710 with a distal end 712 wherein a clamp proj ection in the form of a rib 714 projects there from.
[106] [0106] Referring to FIGS. 28, 29 and 30, there is shown another speciﬁc embodimentof a coolant plate generally designated as 630. Coolant plate 630 has a central longitudinalaxis J °-J ”. Coolant plate 630 has a forward end 632, a rearward end 634, a top plate surface636, and a bottom plate surface 638. The top plate surface 636 contains a pair of intersectingrecesses 640, 642. Referring to FIG. 28, one recess 640 is in the form of an elongate troughand the other recess 642 is in the form of an elongate trough. These elongate troughs (640,642) have an orientation relative to each other and the transverse axis of coolant plate 630that is like corresponding orientations of the elongate troughs 280, 282 of coolant plate 270 inFIG. 7. The angles of disposition of the recesses 640, 624 are the same as those of therecesses 280, 282 of coolant plate 270. Coolant plate 630 has a sloped forward surface region644, swept-back opposite side surface regions 646, 648, and a generally U-shaped rear surface region 650 extending between the opposite side surface regions 646, 648.
[107] [0107]670. As will be described hereinafter, the operator can select which aperture (654, 670) to Coolant plate 630 further contains a pair of spaced apart apertures 654 and use wherein the threaded screw engages the selected threaded aperture (654, 670) in thecoolant plate 630 and the threaded aperture 705 in the clamp member 696 so as to function totightly secure together the clamp member 696 and the coolant plate 630 at a selected one of two possible orientations of the coolant plate 630 relative to the clamp member 696.
[108] [0108]and the bottom plate surface 638 wherein aperture 654 has a top end 656 adjacent the top Referring to FIG. 30, aperture 654 extends between the top plate surface 636 plate surface 636 and a bottom end 658 adjacent the bottom plate surface 638. Aperture 654has a generally cylindrically-shaped reduced dimension section 660 that is threaded.Aperture 654 further has a dome-shaped enlarged dimension section 662 with an arcuate topsurface 664 and a generally cylindrical or generally frusto-conical side surface 666. Thegeometry of aperture 670 is the same as the geometry of aperture 654. Aperture 670 extendsbetween the top plate surface 636 and the bottom plate surface 638 wherein aperture 670 hasa top end adj acent the top plate surface 636 and a bottom end adj acent the bottom platesurface 638. Aperture 670 has a cylindrically-shaped reduced dimension section 676 that isthreaded. Aperture 670 further has a dome-shaped enlarged dimension section 678 with an arcuate top surface and a cylindrical side surface. _23-
[109] [0109] has an open end 688 and a closed end 690. As described above, coolant travels into the bowl The bottom plate surface 638 of the coolant plate 630 contains a bowl 686 that 686 and impinges the surfaces def1ning the bowl 686 whereby coolant exits the bowl 686 viathe open end 688 thereof
[110] [0110] As previously mentioned, the coolant plate 630 and the clamp member 696 areintended to function together. In this regard, a threaded screw is received in the selected oneof the aperture 654 or aperture 670 and engages the reduced dimension threaded section (660,676). The threaded screw also threadedly engages the threaded aperture 705 in the clampingmember 696. The threaded screw is tightened to a position so as to secure the coolant plate630 to the clamping member 696. Typically, there is a gap or space between the undersidesurface of the head of the screw and the arcuate top surface of the dome-shaped enlarged dimension section of the selected aperture. The clamp assembly 694 can then be secured to the holder 624.
[111] [0111] There should be an appreciation that the threaded member (threaded screw720) is a positioner that maintains the position of the clamp member (542, 696) relative to thecorresponding coolant plate upon assembly of the clamp member and the coolant plate. Inthis regard, the threaded screw threadedly engages the threaded aperture in the clamp memberand threadedly engages the threaded aperture in the coolant plate thereby maintaining therelative position or orientation of the clamp member and the coolant plate. Further, the engagement of the threaded screw 720 in the corresponding threaded apertures of the clamp member and coolant plate secures together the clamp member and coolant plate.
[112] [0112] It is apparent that the present invention provides a clamping assembly of aclamp and coolant plate that exhibits a geometry so as to accommodate a number of differentclamps and coolant plates without having to keep in inventory a variety of different cuttinginserts. A reduction in the number of different clamps and/or coolant plates in inventorywould result in a cost savings thereby increasing the overall efficiency of the cutting operation.
[113] [0113] Further, it is apparent that the present invention provides for adequate coolantﬂow to the interface between the cutting insert and the workpiece. The capability to provideadequate coolant ﬂow to the interface between the cutting insert and the workpiece has advantages. For example, a chip generated from the workpiece can sometimes stick (e.g., _24- through welding) to the surface of the cutting insert. The build up of chip material on thecutting insert in this fashion is an undesirable occurrence that can negatively impact upon theperformance of the cutting insert, and hence, the overall material removal operation. A ﬂowof coolant to the insert-chip interface will reduce the potential for such welding. It wouldtherefore be desirable to reduce excessive heat at the insert-chip interface to eliminate orreduce build up of chip material. Further, in a chipforrning material removal operation, therecan occur instances in which the chips do not exit the region of the insert-chip interface whenthe chip sticks to the cutting insert. When a chip does not exit the region of the insert-chipinterface, there is the potential that a chip can be re-cut. It is undesirable for the tuming insertto re-cut a chip already removed from the workpiece. A ﬂow of coolant to the insert-chipinterface will facilitate the evacuation of chips from the insert-chip interface therebyminimizing the potential that a chip will be re-cut. In addition, it is undesirable for the chipto become long. Breaking of the chip into smaller pieces is a desirable event during thematerial removal operation. The coolant stream can impinge the chip to thereby break the chip into the smaller pieces.
[114] [0114] The patents and other documents identified herein are hereby incorporated byreference herein. Other embodiments of the invention will be apparent to those skilled in theart from a consideration of the specif1cation or a practice of the invention disclosed herein. Itis intended that the specif1cation and examples are illustrative only and are not intended to belimiting on the scope of the invention. The true scope and spirit of the invention is indicated by the following claims.

权利要求:
Claims (25)
[1] 1. A clamp assembly to secure a cutting insert to a holder, the clamp assembly comprising:a clamp; the clamp having a distal end and a clamp proj ection depending from the distal end of the clamp; a coolant plate having a top plate surface and a bottom plate surface, the topplate surface containing a recess Wherein the recess receives the clamp projection upon assembly of the clamp and the coolant plate; the bottom plate surface containing a boWl having an open boWl end Wherein in operation the boWl directs coolant through the open boWl end toward the cutting insert; and a positioner extending between the clamp and the coolant plate so as tomaintain a position of the clamp relative to the coolant plate upon the assembly of the clamp and the coolant plate.
[2] 2. The clamp assembly according to claim 1 Wherein the recess comprises a depression.
[3] 3. The clamp assembly according to claim 2 Wherein the clamp proj ection comprising a boss.
[4] 4. The clamp assembly according to claim 1 Wherein the recess comprising a first notch.
[5] 5. The clamp assembly according to claim 4 Wherein the first notch having afirst notch central longitudinal axis, and the coolant plate having a coolant plate central longitudinal axis. _26-
[6] 6. The clamp assembly according to claim 5 Wherein the first notch central longitudinal axis being generally parallel to the coolant plate central longitudinal axis.
[7] 7. The clamp assembly according to claim 5 further including a second notchhaving a second notch central longitudinal axis, and the first notch central longitudinal axisand the second notch central longitudinal axis each being disposed at a notch disposition angle to the coolant plate central longitudinal axis.
[8] 8. The clamp assembly according to claim 7 Wherein the first notch intersecting the second notch.
[9] 9. The clamp assembly according to claim 7 Wherein When the clamp beingassembled to the coolant plate, the rib being received Within a selected one of the first notch and the second notch.
[10] 10. The clamp assembly according to claim 4 Wherein the clamp proj ection comprising a rib.
[11] 11. The clamp assembly according to claim 10 Wherein When the clamp being assembled to the coolant plate), the rib being received Within the first notch.
[12] 12. The clamp assembly according to claim 4 Wherein the bottom platesurface containing a rearWard notch having a central longitudinal axis, and the first notchhaving a central longitudinal axis, and the central longitudinal axis of the rearWard notch being generally perpendicular to the central longitudinal axis of the first notch.
[13] 13. The clamp assembly according to claim 1 Wherein the clamp having aclamp bottom surface and the positioner comprising a clamp post extending from the clamp bottom surface, and the bottom plate surface further containing a rearWard notch Wherein the _27- rearward notch receives the clamp post upon assembly of the clamp and the coolant plate so as to maintain a position of the clamp relative to the coolant plate.
[14] 14. The clamp assembly according to claim 1 Wherein the clamp containing athreaded aperture and the coolant plate containing a threaded aperture, and the positionercomprising a threaded member, and the threaded member threadedly engaging the threadedaperture of the clamp and the threaded aperture of the coolant plate so as to maintain a position of the clamp relative to the coolant plate.
[15] 15. The clamp assembly according to claim 14 Wherein the threaded member secures the coolant plate to the clamp.
[16] 16. A cutting assembly for chipforrning cutting of a Workpiece, the cutting assembly comprising:a cutting insert; a holder having a seat Wherein the seat receives the cutting insert upon assembly of the cutting insert to the holder;a clamp; the clamp having a distal end and a clamp proj ection depending from the distal end of the clamp; a coolant plate having a top plate surface and a bottom plate surface, the topplate surface containing a recess Wherein the recess receives the clamp proj ection upon assembly of the clamp and the coolant plate; the bottom plate surface containing a boWl having an open boWl end Whereinin operation the boWl directs coolant through the open boWl end toward the cutting insert; and a positioner extending between the clamp and the coolant plate so as tomaintain a position of the clamp relative to the coolant plate upon the assembly of the clamp and the coolant plate. _28-
[17] 17. The cutting assembly according to claim 16 Wherein the clamp having aclamp bottom surface and the positioner comprising a clamp post extending from the clampbottom surface, and the bottom plate surface further containing a rearWard notch Wherein therearWard notch receives the clamp post upon assembly of the clamp and the coolant plate so as to maintain a position of the clamp relative to the coolant plate.
[18] 18. The clamp assembly according to claim 16 Wherein the clamp containinga threaded aperture and the coolant plate containing a threaded aperture, and the positionercomprising a threaded member, and the threaded member threadedly engaging the threadedaperture of the clamp and the threaded aperture of the coolant plate so as to maintain a position of the clamp relative to the coolant plate.
[19] 19. The clamp assembly according to claim 18 Wherein the threaded member secures the coolant plate to the clamp.
[20] 20. A coolant plate for use in cooperation With a clamp in a cutting assemblyWith a cutting insert and a clamp having a clamp proj ection and the clamp containing athreaded aperture Wherein a threaded member extends between the threaded aperture of the clamp and the coolant plate, the coolant plate comprising: a top plate surface and a bottom plate surface, the top plate surface containinga recess Wherein the recess receives a clamp proj ection from the clamp upon assembly of the clamp and the coolant plate; the bottom plate surface containing a boWl having an open boWl end Wherein in operation the boWl directs coolant through the open boWl end toward a cutting insert; and the coolant plate containing a threaded aperture that receives the threadedmember upon assembly of the clamp to the coolant plate so as to maintain a position of the clamp relative to the coolant plate. _29-
[21] 21. The coolant plate according to claim 20 Wherein the recess comprises a depression, and the clamp proj ection comprising a boss.
[22] 22. The coolant plate according to claim 20 Wherein the recess comprising afirst notch, and .the first notch having a first notch central longitudinal axis, and the coolant plate having a coolant plate central longitudinal axis.
[23] 23. The coolant plate according to claim 22 Wherein the first notch central longitudinal axis being generally parallel to the coolant plate central longitudinal axis.
[24] 24. The coolant plate according to claim 22 further including a second notchhaving a second notch central longitudinal axis, and the first notch central longitudinal axisand the second notch central longitudinal axis each being disposed at a notch disposition angle to the coolant plate central longitudinal axis.
[25] 25. A coolant plate for use in cooperation With a clamp in a cutting assemblyWith a cutting insert and a clamp having a clamp post and a clamp proj ection, the coolant plate comprising: a top plate surface and a bottom plate surface, the top plate surface containinga recess Wherein the recess receives a clamp projection from the clamp upon assembly of the clamp and the coolant plate; the bottom plate surface containing a boWl having an open boWl end Wherein in operation the boWl directs coolant through the open boWl end toward a cutting insert; and the bottom plate surface further containing a rearWard notch Wherein therearWard notch receives a clamp post from the clamp upon assembly of the clamp and the coolant plate.

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JP2015000474A|2015-01-05|

引用文献:

公开号 | 申请日 | 公开日 | 申请人 | 专利标题

US2992472A|1958-05-22|1961-07-18|Aurel Vaszin|Tool holding means|

US3084416A|1959-12-28|1963-04-09|Gen Electric|Cutting tool|

US3102326A|1960-04-20|1963-09-03|Alfred R Conti|Cutting tool|

US3124864A|1960-10-05|1964-03-17|frommelt etal|

NL281474A|1961-08-02|

US3132542A|1962-03-27|1964-05-12|Paul M Horvath|Cutter having a removable tip|

US3303553A|1964-08-24|1967-02-14|Viking Tool Company|Cutting tool assembly|

NL132981C|1966-08-17|

US3497935A|1967-02-15|1970-03-03|C & L Machine Shop Inc|Cut-off tool assembly|

US3500523A|1967-08-14|1970-03-17|Saginaw Machine & Tool Co|Tool holder construction|

US3688366A|1970-07-13|1972-09-05|Kennametal Inc|Tool|

US3731356A|1971-06-18|1973-05-08|Gen Electric|Cutting tool|

US3754309A|1972-01-28|1973-08-28|Kennametal Inc|Cutting insert and clamping arrangement therefor|

SE393759B|1974-04-08|1977-05-23|Wlajko M|DEVICE AT SKERHALLARE|

US3887974A|1974-08-01|1975-06-10|Kennametal Inc|Cutting insert and holder therefor|

US3911543A|1974-08-01|1975-10-14|Kennametal Inc|Cutting insert and holder|

US3934320A|1974-11-01|1976-01-27|Kennametal Inc.|Grooving and cut off tool|

JPS542708B2|1976-01-16|1979-02-10|

US4118138A|1977-06-13|1978-10-03|Triangle Grinding, Inc.|Cutting tool|

US4321846A|1980-04-18|1982-03-30|The Gillette Company|Tool holder|

US4400117A|1981-05-04|1983-08-23|Milling Specialties, Inc.|Insert type milling cutter|

DE3136549A1|1981-09-15|1983-03-31|Feldmühle AG, 4000 Düsseldorf|CUTTING TOOL|

US4545705A|1983-08-23|1985-10-08|Triangle Grinding Inc.|Insert retaining apparatus|

US4535216A|1983-10-14|1985-08-13|Rockwell International Corporation|Metal-working tool using electrical heating|

US4600341A|1984-02-21|1986-07-15|Board Harry B|Pocket reducing insert for toolholder and the like|

US4697963A|1985-02-08|1987-10-06|Ingersoll Cutting Tool Company|Insert clamping device and insert therefor|

DE3740814A1|1987-12-02|1989-06-15|Hertel Ag Werkzeuge Hartstoff|Clamping tool for cutting shaping|

US5100269A|1988-08-12|1992-03-31|Kennametal Inc.|Cutting insert and clamping arrangement therefor|

US4946319A|1988-08-12|1990-08-07|Kennametal Inc.|Cutting insert and clamping arrangement therefor|

CH678027A5|1988-09-02|1991-07-31|Krupp Widia Schweiz Ag|

US5538367A|1993-10-22|1996-07-23|Kennametal Inc.|Metal cutting tool assembly having an automatically adjustable chipbreaker|

DE4415425A1|1994-05-03|1995-11-09|Krupp Widia Gmbh|Cutting tool|

EP0775031B1|1994-08-09|2002-07-03|The Edison Materials Technology Center|Cryogenic machining|

DE4430171C2|1994-08-25|1996-08-14|Walter Ag|Form-locked insert|

DE19524945A1|1995-07-08|1997-01-09|Cerasiv Gmbh|Cutting cutting tool|

US5722803A|1995-07-14|1998-03-03|Kennametal Inc.|Cutting tool and method of making the cutting tool|

US5868530A|1995-10-12|1999-02-09|Shouse; Virgil|Cutting tool|

DE19539119A1|1995-10-20|1997-04-24|Mapal Fab Praezision|Tool for machining fine machining|

DE19627990C5|1996-07-11|2004-07-01|MAPAL Fabrik für Präzisionswerkzeuge Dr. Kress KG|Cutting insert designed as a polygon|

SE510284C2|1996-11-18|1999-05-10|Sandvik Ab|Internally chilled cutter for chip separating machining|

US6045300A|1997-06-05|2000-04-04|Antoun; Gregory S.|Tool holder with integral coolant passage and replaceable nozzle|

JP3050183B2|1997-09-09|2000-06-12|住友電気工業株式会社|Ceramic tip clamp type cutting tool|

SE513610C2|1998-02-03|2000-10-09|Sandvik Ab|Cuts for chip separating machining|

IL124496A|1998-05-14|2003-05-29|Iscar Ltd|Tool holder|

GB2338196B|1998-06-12|2003-05-21|Bencere Ltd|A Cutting insert|

US6000885A|1998-07-22|1999-12-14|Kennametal Inc.|Cutting insert suitable for mounting in different toolholder pockets and associated toolholder assembly|

US6161990A|1998-11-12|2000-12-19|Kennametal Inc.|Cutting insert with improved flank surface roughness and method of making the same|

US6186704B1|1999-03-04|2001-02-13|Kennametal Inc.|Toolholder with detachable blade|

DE60021085T2|1999-04-26|2006-05-11|Sandvik Intellectual Property Hb|TOOL HOLDER AND SPANNING PLATE FOR A CUTTING INSERT|

US6299388B1|2000-02-03|2001-10-09|Slabe Machine Products Company|Universal tool holder collant delivery adapters|

US6379087B1|2000-02-07|2002-04-30|Kennametal Inc.|Cutting insert with split face clamping surfaces and toolholder therefor|

JP2002346810A|2001-05-25|2002-12-04|Sumitomo Metal Ind Ltd|Cutting tool|

DE10208266A1|2001-07-26|2003-02-13|Ceram Tec Ag Innovative Cerami|Stock-removing cutting tool has circular clamping trough with centre protrusion on cutting plate associated with matching circular ring on cam of pressure member which engages round protrusion|

DE10142049A1|2001-08-28|2003-03-20|Kennametal Inc|Cutting insert and its use|

US6652200B2|2001-11-01|2003-11-25|Rolf H. Kraemer|Tool holder with coolant system|

US7073986B2|2001-11-08|2006-07-11|Kennametal Inc.|Dimpled insert with retaining clamp|

SE525462C2|2002-06-18|2005-02-22|Sandvik Ab|Tool head for chip separating metal machining tool with clamping screw which is inserted into a nut roll|

DE10239451A1|2002-08-28|2004-03-11|Ceramtec Ag Innovative Ceramic Engineering|Cutting plate for mounting in a cutting tool for cutting cast material, especially cast iron, comprises a cutting plate upper side, a cutting edge|

SE525875C2|2002-11-13|2005-05-17|Sandvik Ab|Cutter for cutting tools with raised transition surface|

US6957933B2|2003-05-30|2005-10-25|Siderca S.A.I.C.|Threading insert with cooling channels|

EP1595648A3|2004-05-13|2009-05-27|CeramTec AG|Two-piece clamping device|

JP2006055917A|2004-08-17|2006-03-02|Tungaloy Corp|Throw-away cutter|

US7634957B2|2004-09-16|2009-12-22|Air Products And Chemicals, Inc.|Method and apparatus for machining workpieces having interruptions|

SE528615C2|2005-05-02|2006-12-27|Sandvik Intellectual Property|Threaded inserts with a downwardly open channel in the underside of the inserts|

US7128501B1|2005-07-05|2006-10-31|Sandor Sipos|Lathe tool assembly|

US7607868B2|2006-04-24|2009-10-27|Valenite Llc|Side locking insert and material removal tool with same|

US20070283794A1|2006-06-13|2007-12-13|Giannetti Enrico R|Machine tool holder having internal coolant supply and cutter retaining and coolant distribution cutter insert retaining clamp assembly|

US8827599B2|2010-09-02|2014-09-09|Kennametal Inc.|Cutting insert assembly and components thereof|

US8734062B2|2010-09-02|2014-05-27|Kennametal Inc.|Cutting insert assembly and components thereof|

US9101985B2|2007-01-18|2015-08-11|Kennametal Inc.|Cutting insert assembly and components thereof|

US7883299B2|2007-01-18|2011-02-08|Kennametal Inc.|Metal cutting system for effective coolant delivery|

US7510352B2|2007-08-03|2009-03-31|Kennametal Inc.|Integral cutting insert clamping mechanism|

US20090320655A1|2008-06-30|2009-12-31|Marion Billingsley Grant|Machining tool utilizing a supercritical coolant|

SE533017C2|2009-02-20|2010-06-08|Seco Tools Ab|Cutting tools and cutters with fluid flow structures|

US8061241B2|2009-04-06|2011-11-22|Creare Incorporated|Indirect cooling of a cutting tool|

US8215878B2|2009-04-22|2012-07-10|Creare Incorporated|Indirect cooling of a rotary cutting tool|

DE102010063849A1|2009-12-22|2011-06-30|CeramTec GmbH, 73207|clamping system|

IL206537A|2010-06-22|2013-04-30|Iscar Ltd|Cutting tool having a coolant supply|

US8596935B2|2010-10-08|2013-12-03|TDY Industries, LLC|Cutting tools and cutting inserts including internal cooling|

JP5843102B2|2012-01-19|2016-01-13|株式会社デンソー|Cutting tools|

DE102012017424B4|2012-09-04|2018-07-19|Kennametal Inc.|Device for lancing cutting tool, lancing cutting plate and lancing cutting tool|

US8956086B2|2012-12-17|2015-02-17|Kennametal Inc.|Toolholder assembly with internal coolant delivery system|

US9511421B2|2013-06-14|2016-12-06|Kennametal Inc.|Cutting tool assembly having clamp assembly comprising a clamp and a coolant plate|US9511421B2|2013-06-14|2016-12-06|Kennametal Inc.|Cutting tool assembly having clamp assembly comprising a clamp and a coolant plate|

EP2946857B1|2014-05-19|2019-10-16|Sandvik Intellectual Property AB|Turning tool holder and cutting tool insert|

US20160016233A1|2014-07-17|2016-01-21|Kennametal India Limited|Notched cutting inserts and applications thereof|

WO2016110596A1|2015-01-09|2016-07-14|Ceramtec Gmbh|Carrier tool, cutting insert, and clamping element|

CN105772823B|2016-04-08|2018-02-02|苏州阿诺精密切削技术有限公司|A kind of face milling cutters and its installation method|

CN109641280B|2016-08-19|2020-08-14|京瓷株式会社|Cutting tool and method for manufacturing cut product using same|

RU2692536C2|2017-05-26|2019-06-25|Открытое акционерное общество "Свердловский инструментальный завод"|Collecting tool|

JP6651136B2|2017-10-25|2020-02-19|株式会社タンガロイ|Cutting inserts, deposits and holders|

法律状态:
2015-09-22| NAV| Patent application has lapsed|

优先权:

申请号 | 申请日 | 专利标题

US13/918,192|US9511421B2|2013-06-14|2013-06-14|Cutting tool assembly having clamp assembly comprising a clamp and a coolant plate|

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