• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Cutting component group comprising a holder, which comprises a passage for supplying coolant, and a locking rod, which has a longitudinal locking rod hole which communicates with. the passage for the supply of coolant. A clamping device is attached to the holder and engaged with a cutting insert. The clamping device has a spreading plate with an integrated projection, which has a central projection hole, and an internal passage, the central projection hole communicating with the internal passage. The longitudinal locking bar hole opens towards the central one. the projection hole, whereby coolant can flow into the central projection hole and to the inner passage, and then leave the inner passage in the direction of the cutting insert.
    公开号:SE1351290A1
    申请号:SE1351290
    申请日:2013-10-31
    公开日:2014-05-01
    发明作者:Nicholas J Henry；Shi Chen；Kent Peter Mizgalski
    申请人:Kennametal Inc；
    IPC主号:
    专利说明:

    [5] Another example is that during chip-forming removal of material, situations may arise where the chips do not leave the area of the insert / chip interface, because the chip adheres to the cutting insert. When a chip does not leave the area of the insert / chip interface, there is a risk that a chip can be cut again. It is not desirable for the turning insert to cut a chip that has already been removed from the workpiece. A fl fate of coolant to the insert / chip interface facilitates the removal of chips from the insert / chip interface and thus minimizes the risk of a chip being cut again.
    [6] There is an awareness that a shorter tool life increases operating costs and reduces overall production efficiency. Excessive heat at the insert / chip interface contributes to welding chip material and to chips being cut again, which in both cases is negative for production efficiency. There are clear advantages associated with reducing the heat at the insert / chip interface, whereby a way to reduce the temperature is to supply coolant to the insert / chip interface.
    [7] Heretofore, various systems have functioned so as to lower the temperature of the cutting insert during machining. Some systems use, for example, extreme nozzles to direct coolant towards the cutting edge of the insert. The coolant works not only to lower the temperature of the insert, but also to remove chips from the scrubbing area. The nozzles are often located at a distance of one to twelve inches from the cutting edge. This is too large a distance for efficient cooling. The longer the coolant has to be moved, the more the coolant will mix with the air and the more unlikely it is to come in contact with the insert / chip interface.
    [8] U.S. Patent No. 6,053,669 to Lagerberg for CHEEE CUTTING INSERT WITH INTERNAL COOLING discusses the importance of reducing the heat at the insert / chip interface. Lagerberg mentions that the resistance to plastic deformation decreases when the cutting insert, which is made of cemented carbide, reaches a certain temperature. A reduction in the resistance to plastic deformation increases the risk of fracture of the cutting insert. U.S. Patent No. 5,775,854 to Wertheim for METAL CUTTING TOOLS points out that an increase in the working temperature leads to a decrease in the hardness of the cutting insert. The consequence is a greater wear on the cutting insert.
    [9] Other patent documents disclose various methods or systems for supplying coolant to the insert / chip interface. For example, U.S. Patent No. 7,625,157 to Pnchard et al. for MILLING CUTS AND MILLING INSERTS WITH SUPPLY OF REDIENTS a cutting insert which comprises a cutting body with a central inlet opening for coolant.
    [10] U.S. Patent No. 6,045,300 to Antoun for TOOL HOLDER WITH INTEGRATED COOLANT PASS SAW AND PRECIOUS NOZZLE presents the use of high pressure and large volume supply of coolant to address the heat at the insert / chip interface. U.S. Patent No. 6,652,200 to Kraemer for a REFRIGERATOR SYSTEM TOOL HOLDER presents grooves between the cutting insert and a top plate. Coolant flows through the grooves to remedy the heat at the insert / chip interface. U.S. Patent No. 5,90l, 623 to Hong for CRYOGENIC PROCESSING discloses a refrigerant supply system where surface nitrogen is applied to the insert / chip interface.
    [12] In one embodiment, the invention is a cutting component group for use in chip forming removal of material from a workpiece. The cutting component group comprises a holder having a seat, and the holder comprises a passage for supplying coolant. The cutting component group further has a locking rod, which has a longitudinal locking rod hole, wherein the locking rod is attached to the seat, so that the locking rod hole communicates with the passage for supplying coolant. There is a cutting insert that has a central cutting insert opening.
    [13] In another embodiment of the invention, the invention consists of a component group with a locking rod and a spreading plate, for use with a holder having a passage for supplying coolant, a cutting insert and a clamp. The component group with locking rod and spreader plate comprises a locking rod which comprises a longitudinal locking rod hole with an inlet opening for coolant and an outlet opening for coolant. The longitudinal locking bar hole has an upper part defined by the upper inner wall. There is a spreading plate which has a lower surface with an integrated projection, which faces away from the lower surface of the spreading plate. The integrated committee has a central committee hole. The spreader plate includes an internal passage that communicates with the central projection hole. The longitudinal locking bar hole opens towards the spreading plate, whereby coolant flows into the central projection hole and to the inner passage, and then leaves the inner passage in the direction of the cutting insert.
    [14] In yet another embodiment of the invention, the invention consists of a cutting component group for use in chip-forming removal of material from a workpiece. The cutting component group comprises a holder having a seat, and comprises a passage for supplying coolant. There is a locking rod, which has a longitudinal locking rod hole which communicates with the passage for supplying coolant. There is a cutting insert. A clamping device is attached to the holder and engages the cutting insert.
    [15] The following is a brief description of the drawings which form part of this patent application:
    [16] FIG. 1 is an isometric representation of a specific embodiment of the cutting component group, which comprises a holder and a component group with cutting insert,
    [17] FIG. 2 is a side view of the specific embodiment of FIG. 1,
    [18] FIG. 3 is a top view of the specific embodiment of FIG. 1, but without the component group with cutting insert being attached to the holder and with a part of the holder body removed to show the internal passage for coolant,
    [19] FIG. 4 is a cross-sectional view of the specific embodiment of FIG. 3, which does not have the component group with insert inserted, along section line 4-4 of FIG. 3,
    [20] FIG. 5 is a top view of the specific embodiment of FIG. 1, wherein the component group with cutting insert is attached to the holder,
    [21] FIG. 6 is a schematic cross-sectional view of the specific embodiment of FIG. 5, taken along section line 6-6 of FIG. 5, which shows the path of the coolant, as well as how the workpiece and the cutting insert engage with each other to form a chip,
    [22] FIG. 7 is an enlarged view of the area of FIG. 6 shown in circle 7 in FIG. 6,
    [23] FIG. 8 is an isometric representation of a specific embodiment of the locking bar,
    [24] FIG. 9 is a cross-sectional view of the locking bar of FIG. 8, along section line 9-9 of FIG. 8,
    [25] FIG. 10 is a top view of the locking bar of FIG. 8,
    [26] FIG. 11 is an enlarged view of the area of the locking bar shown in circle 11 of FIG. 9, _6_
    [27] FIG. 12 is an isometric representation of a specific embodiment of the spreader plate,
    [28] FIG. 13 is a bottom isometric view of the spreader plate of FIG. 12,
    [29] FIG. 14 is a top view of the spreader plate of FIG. 12,
    [30] FIG. 15 is a side view of the spreader plate of FIG. 12,
    [31] FIG. 16 is a view of the back of the spreader plate of FIG. 12,
    [32] FIG. 17 is a cross-sectional view of the spreader plate of FIG. 12, along section line 17-17 of FIG. 14,
    [33] FIG. 18 is an enlarged view of the area of the spreader plate shown in circle 18 of FIG. 17,
    [34] FIG. 19 is an isometric view of the clamping screw with the spreader plate invisible in the view,
    [35] FIG. 20 is a top view of the spacer,
    [36] FIG. 21 is a cross-sectional view of the spacer of FIG. 20, along section line 21-21 of FIG. 20,
    [37] FIG. 22 is an isometric representation of a specific embodiment of a coarse cutting insert,
    [38] FIG. 23 is a top view of the coarse cutting insert of FIG. 22,
    [39] FIG. 24 is a side view of the coarse cutting insert of FIG. 22,
    [40] FIG. 25 is a cross-sectional view of the coarse cutting insert of FIG. 23, along section line 25-25 in FIG. 23,
    [41] FIG. 26 is a cross-sectional view of the roughening insert of FIG. 23 along section line 26-26 of FIG. 23,
    [42] FIG. 27 is an isometric view showing the mounting of the component group with cutting insert on the body of the holder, _7_
    [43] FIG. 28 is an isometric representation of a second specific embodiment of a spreader plate,
    [44] FIG. 29 is a bottom isometric view of the spreader plate of FIG. 28,
    [45] FIG. 30 is a top view of the spreader plate of FIG. 28,
    [46] FIG. 31 is a side view of the diffuser plate of FIG. 28,
    [47] FIG. 32 is a rear view of the spreader plate of FIG. 28,
    [48] FIG. 33 is a cross-sectional view of the spreader plate of FIG. 30, along section line 33-33 of the FIG. 30,
    [49] FIG. 34 is a cross-sectional view of a portion of the spreader plate of FIG. 31, along section line 34-34 of FIG. 31,
    [50] FIG. 35 is an enlarged view of the area of the spreader plate shown in circle 35 in FIG. 33,
    [51] FIG. 36 is an isometric representation of another embodiment of a holder suitable for receiving the component assembly with cutting insert,
    [52] FIG. 36A is an isometric representation of a holder such as that of FIG. 36, with the internal coolant passage entering the holder from behind and extending along the elongate shaft,
    [53] FIG. 36B is an isometric representation of a holder such as that of FIG. 36, with the internal coolant passage entering the holder from the side and extending into the head of the holder and
    [54] FIG. 36C is an isometric representation of a holder such as that of FIG. 36 with the internal coolant passage entering the holder from below and extending into the head of the holder.
    [55] The present invention relates to a component group with cutting insert, useful for a process with chip-forming removal material. In a chip removal process, the cutting insert engages a workpiece to remove material from the workpiece, usually in the form of chips. A method in which material is removed from the workpiece in the form of a buckle is typically known to those skilled in the art as chip removal of material. The book Machine Shop Practice [Industrial Press Inc., New York, New York (1981)] by Moltrecht gives on pages 199-204 a description, inter alia, of chip generation, as well as of different types of chips (ie continuous chips, non-continuous chips , segmented chips). Moltrecht writes [in part] on pages 199-200, “When the cutting tool first comes into contact with the metal, it compresses the metal in front of the cutting edge. As the tool advances, the metal in front of the cutting edge is loaded to the point where an internal shear stress is created which causes the metal particles to deform and float plastically along a plane called the shear plane. .. When the metal being cut is ductile, like steel, the chips are loosened in a GG continuous band .... Moltrecht goes on to describe how a non-continuous chip and a segmented chip are formed. Another example, the text found on pages 302-315 of the ASTE Tool Engineers Handbook, McGraw Hill Book Co., New York, New York (1949), provides a long description of chip formation during the metal cutting process. On page 303, the ASTE Handbook clarifies the relationship between chip formation and machining procedures such as turning, milling and drilling. The following patent documents discuss chip formation in a material removal process: 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.).
    [56] In the preferred embodiment, the total fl ö in all refrigerant passage should not be less than 80% of the possible fl fate from an unlimited flushing nozzle. It should be clear that any of a number of different liquids or coolants are suitable for use with the cutting insert. In summary, there are two basic categories of liquids or coolants: namely, oil-based liquids that include non-dilute oils and soluble oils, and chemical liquids that include synthetic and semi-synthetic coolants. Non-dilute oils consist of a mineral oil or petroleum oil as a base and often contain polar lubricants such as fats, vegetable oils and esters, as well as additives for extremely high pressures, such as chlorine, sulfur and phosphorus. Soluble oils (also called emulsion liquids) consist of a petroleum oil or mineral oil as a base, combined with emulsifiers and blending agents. Petroleum or mineral-based oil in combination with emulsifiers and blending agents are the basic components of soluble oils (also called emulsifiable oils). The concentration of listed _9_ components in their water mixture is usually between 30-85%. Soaps, wetting agents and coupling agents are commonly used as emulsifiers and their main role is to reduce surface tension. As a result, they can cause a liquid to foam.
    [57] Referring to FIG. 1 as to other suitable drawings, it can be seen that FIG. 1 is an isometric representation showing a specific embodiment of the cutting component group designated in its entirety by 100. This is a cutting component group useful for chip removal of material from a workpiece 118. The material is removed from the workpiece 118 in the form of chip 120.
    [58] The cutting component assembly 100 further includes a spacer 104, a locking rod 106 (not shown in FIG. 1, but can be seen in FIG. 6 and other drawings), a cutting insert 108, and a clamping device (jumper) 110. of these components are described in greater detail below.
    [59] Pilama CF in FIG. 1 represents fl the fate of coolant ejected from or leaving the cutting component group. The coolant is sprayed against the specific cutting point where the cutting insert engages the workpiece. As will be described in greater detail below, the jet of coolant moves along the radial coolant depression in the cutting surface of the cutting insert. The geometry of the radial coolant depression causes the coolant to move in an upward direction, away from that cutting angle and in an outward direction, away from the central opening in the insert. The coolant comes out of the radial coolant depression in the upward and outward direction. The coolant jet strikes the lower surface of the chip formed from the workpiece, the upward and outward movement of the coolant facilitating the chip to hit its lower side.
    [60] Referring to FIG. 2 to FIG. 4, as in other suitable drawings, it is shown that the holder 102 has a holder body 124 which has a front end (or working end) 128 and a rear end 126. The holder body 124 has a leg region (summarizing parentheses 130) at the rear end 126 and a main area (summary brackets 132) at the front end 128. The main area 132 comprises a seat, which is designated in its entirety by 136, and which has a seat surface 138 and an upright support surface 140. As will be clarified in the following, the upright support surface provides 140 supports the spacer 104 and the cutting insert 108 when the retaining body 124 is attached to the seat 136.
    [61] The holder body 124 comprises a passage 142 for supplying coolant, which has one end 144 and an opposite end 146. The opposite end 146 is located in the seat surface 138. The passage 142 for supply of coolant has a smooth portion 147 in the form of a truncated cone, (see FIG. 4) adjacent the seat surface 138. As shown in FIG. 4, the coolant supply passage 142 further has a threaded portion 148 adjacent the portion 147 formed as a truncated cone.
    [62] Referring to FIG. 8 to FIG. 11, as in other suitable drawings, it is shown that the locking bar, which in its entirety is denoted by 106, here is a long narrow locking bar body 170, which has an upper end 172 in the axial direction and a lower end 174 in the axial direction.
    [63] The outer surface of the locking bar body 170 has an annular shoulder 182 midway between the axial upper end 172 and the axial lower end 174. Behind the annular shoulder 182 is an annular groove 183. The locking bar body 170 has a main area (summarizing parentheses 184) which includes the annular shoulder 182 at the upper end 172. The locking bar body 170 further has a shank area (summarizing parentheses 186) at the bottom end 174. The annular groove 183 in the locking bar body 170 houses an elastic O-ring seal 188. The outer surface of the locking bar body 170 includes a threaded area 200 at the lower end 174 of the rod.
    [64] The locking rod 106 provides a "retraction effect" after complete tightening in the threaded portion 148 in passage 142 for supply of coolant. The locking bar 106 provides this effect by a directional difference between the longitudinal axis of the threaded area 200 and the longitudinal axis of the rest of the locking bar body 170. The central longitudinal axis of the threaded portion 200 and the longitudinal axis of the rest of the locking bar body are provided with an angular difference. By "retraction effect" is meant that after fi complete tightening of the locking bar 106, the locking bar 106 forces the spacer 104 and cutting insert 108 against the upright support surface 140. This action enhances the integrity of the fixation of cutting insert 108 and spacer 104 in the holder seat. This "withdrawal effect" is illustrated and described in the pending U.S. Patent Application Serial No. 12 / 874,591 filed December 12, 2010 by Chen et al. for COMPONENT GROUP WITH CUTTING INSERT AND COMPONENTER THE SAME, which is incorporated by reference into this patent application.
    [65] Referring to FIG. 12 to FIG. 18 illustrate a spreader plate 116 having a main spreader plate body 210. The main spreader plate body 210 has an upper surface 212 and a lower surface 214. The upper surface 212 has a planar portion 215 in which there is an axial groove 216. The main spreader plate body 210 further includes a transverse groove 218 at the boundary between the planar portion 215 and an inclined portion having a central, inclined surface 220 and two lateral inclined surfaces 226, 228. The main spreader plate body 210 includes a recess 222 and an inner passage 224.
    [66] The spreader plate 116 further has an integrated projection 234 facing away from the lower surface 214 of the main spreader plate body 210. The projection 234 has a distal end 236 where there is a surface 248 in the form of a truncated cone. The protrusion 234 further includes a central hole 238 having a lower end 240 and an upper end 242. The outer surface of the integrated protrusion 234 includes an annular groove 244 housing an O-ring seal 246.
    [67] The main spreader plate body 210 further has side surfaces (256, 258) extending from their respective lateral inclined surfaces (226, 228) to the rear end surface 260 of the main spreader plate body 210. Each side surface 256, 258 includes a lateral groove 264 , 266. The lateral groove 264 is defined in part by a wall 268 which tapers the diffuser plate body and a straight wall 270. The lateral groove 266 is defined in part by a wall 272 which tapers the diffuser plate body and a straight wall 274.
    [68] As shown in FIG. 17, the central projection hole 238 is located at its upper end 242 in fluid communication with the inner passage 224. The supply of coolant will be described below, but coolant is moved (flows) from the lower end 240 through the central projection hole 238 and then leaves the central projection hole. 238 via the upper end 242 thereof, to enter the inner passage 224. The inner passage 224 opens at recess 222, the coolant being ejected from the inner passage 224 and through recess 222, towards the cutting insert. As will be described below, coolant is flattened along the surface of the cutting insert so that the interface between the cutting insert and the workpiece is sprayed. _13-
    [69] Referring to FIG. 20 and FIG. 21, as with other suitable drawings, it is shown that the spacer 104 has a generally polygonal geometry with an upper surface 154, a lower surface 156 and a side surface 158. The spacer 104 includes a central opening 160 which extends directly through the spacer 104. The central the opening 160 has an annular lip 162, located between the upper surface 154 and the lower surface 156, the annular lip 162 projecting into the volume enclosed by the central opening 160. The annular lip 162 has a surface which is generally shaped like a truncated cone in cross section.
    [70] As will be described in greater detail below, the annular lip 162 provides a surface against which an elastic O-ring seal 188 is deformed during compression, to create a liquid tight seal between the spacer 104 and the locking bar 106. be clear that the spacer 104 may include or cooperate with other structures which perform the sealing function. Applicants do not believe that the elastic O-ring seal 188 is the only way to create the liquid tight seal between the spacer 104 and the locking rod 106.
    [71] Referring to FIG. 19, as with other suitable drawings, the clamping device 110 includes the screw 112, which has an upper end 280 and a lower end 282.
    [72] FIG. 22 to FIG. 26 illustrates the coarse cutting insert 420. Referring to FIG. 22 to FIG. 26, it is shown that the coarse cutting insert 420 has a coarse cutting insert body 430 having a diamond-shaped geometry having eight separate cutting areas 432 in the horn. The rough-cut insert body 430 has a pair of opposed surfaces 434, 436 which abut at cutting and a flank surface 438 which extends around the circumference of the rough-cut insert body 430. The flank surface 438 meets the surfaces 434, 14-436 which abut at cutting forming cutting edges 440 at the cutting areas 432 in the corners. A pair of opposed cutting areas 432 in the corners (in the upper right corner and lower left corner, as shown in FIG. 23) enclose an angle "AAA" equal to about 80 °. The second pair of opposing cutting areas 432 in the corners (in the upper left corner and in the lower right corner, as shown in FIG. 23) enclose an angle “BBB” equal to approximately 100 °. The structural properties, including the surfaces, are substantially the same for each cutting area 432 in the hay.
    [73] The coarse-cut insert body 430 includes a central opening 444 which extends through the coarse-cut insert body 430, the central opening 444 meeting both of the surfaces (434, 436) abutting below the cut. The central opening 444 has an orifice (446, 448) at each of the meeting points with the surfaces (434, 436) abutting during the cutting. There is an edge 450 along the circumference which extends around the cutting area 432 of the corner. The edge 450 along the circumference is located below and parallel to the plane of the surface adjacent to the cut. FIG. 26 shows that the edge 450 along the circumference is lower than the plane of the surface which abuts at the intersection with a distance "D", i.e. in a plane that follows along the surface adjacent to the intersection.
    [74] At each cutting area 432 in the corners there is a radial coolant depression 460.
    [75] There are a pair of circumferentially recessed recesses 480, 482 extending along and within the lateral edges 454, 456 along the circumference, except that the circumferentially recessed recesses 480, 482 terminate at their meeting points with the radial coolant recess. 460. These recesses 480, 482 placed on the circumference are parallel to the plane of the surface which lies below the cut. It can be seen that the radial coolant recess of this cutting insert has its starting point near the central opening in the cutting insert and ends next to the cutting area of the corner, the recess being located radially on the inside of the cutting area of the corner. The radial rinse aid recess has a depth that decreases from the starting point to the end. When the coolant is to leave the radial coolant depression for fl, it is moved in an upward direction away from the surface that lies below the cut.
    [76] More specifically, to mount the spreading plate 116 to the clamps 114, the spreading plate 166 has been placed in line with the tines 288. The walls (268, 272) which taper the spreading plate adjacent the end 260 engage the tines 288 to separate them when the spreading plate ll6 fl faces the cylindrical component 305. The teeth 288 slope inwardly toward the spreader plate ll6 and are located within the lateral grooves (264, 266). The inward inclination of the tenamas 288 securely holds the spreader plate 16 at the clamps 114. As will be appreciated, the spreader plate 116 can be detached from the clamping arm 114 by pulling the spreader plate 116 away from the base 304.
    [77] By providing a spreader plate which is easily attachable to the rest of the clamping device, the material from which the spreader plate is made can vary depending on the cutting method. For example, the spreader plate 166 may be made of steel or cemented carbide, depending on the specific application. The possibility of varying the material of only the spreading plate, without changing the rest of the clamping device provides an advantage. Another advantage associated with a spreader plate that can be easily attached to the rest of the clamp component group is that the structure or geometry of the spreader plate may vary to suit a particular situation or application.
    [78] Referring to FIG. 28 to FIG. 35, a second specific embodiment of the spreader plate 500 is shown. The spreader plate 500 has a main spreader plate body 502. The main spreader plate body 502 has an upper surface 504 and a lower surface 506. The upper surface 504 has a flat portion 508 in which there is an axial track 5 l0. The main spreader plate body 502 further includes a transverse groove 512 at the meeting point of the planar portion 508 and an inclined portion having an inclined planar surface 166 and two lateral inclined surfaces 518, 520. The main spreader plate body 502 further has a curved forward surface 22. , two converging passages 528, 530 opening into the curved forward-facing surface 522. The converging passage 528 has an inlet opening 534 and an outlet opening 536. The converging passage 530 has an inlet opening 538 and an outlet opening 5.
    [79] The spreader plate 500 further has an integrated projection 542 extending away from the lower surface 506 of the spreader plate body 502. The projection 542 has a distal end 544 where there is a surface 546 shaped like a truncated cone. The projection 542 further has a central projection hole 548, which has a lower end 550 and an upper end 552. The outer surface of the integrated projection 542 includes an annular groove 554 which houses an O-ring seal 556.
    [80] As particularly illustrated in FIG. 31 and FIG. 34, the central projection hole 548 is at its upper end 552 in fluid communication with the converging passages 528, 530. As for the supply of coolant, the coolant moves (flows) from the lower end 550 through the central projection hole 548 and via the upper 552. end into the converging passages 528, 530. The converging passages 528, 530 open at their respective outlet openings (536, 540), with coolant being ejected from the converging passages 528, 530 toward the cutting insert, cooling means flowing along the surface of the cutting insert to spray the interface between the cutting insert and the workpiece.
    [81] With respect to the assembly of the components, FIG. 27 is a visual guide to the component assembly, and FIG. 6 and FIG. 7 show a cross section of the assembled components. Initially, the spacer 104 is placed on the seat surface 138 of the seat 136 in the holder 102. The side surfaces 158 of the spacer 104, adjacent to the upright wall 140, contact the surface of wall 140. Arrow AA represents this step in the mounting process.
    [82] In the next step, the locking rod 106 is inserted into the outlet opening 146 of the coolant supply passage 142 in the seat surface 138. The threaded area 200 of the locking rod 106 is screwed together with the threaded portion 148 of the coolant supply passage 142. The locking rod 106 _17- is screwed in until it is securely in passage 142 for supplying coolant. As can be seen, at least a portion of the locking rod 106 is located in passage 142 for supplying coolant. The locking bar 106 secures the spacer 104 tightly against the seat surface of the seat. Pilama BB represents this step in the assembly process.
    [83] As the next step, the cutting insert 108 is placed on top of the spacer 104. When in this position, the upper portion 204 of the locking bar 106 is located within at least part of the central opening 109 in the cutting insert 108. The arrows CC represent this step in the mounting process.
    [84] It should be understood that once the locking bar 106 is securely fixed in coolant supply passage 142, the rear surface of shoulder 182 presses O-ring 188 against lip 162 of spacer 104. O-ring 188 creates a liquid tight seal between the locking rod 106 and the spacer 104. During operation, no coolant can escape between the spacer 104 and the locking rod 106.
    [85] The next step in the mounting process involves securing the clamping device 110 to the holder 102. The threaded portion 286 of the screw 112 is screwed into the threaded clamping hole 153 in the holder 102. The clamping device 110 is tightened to the position where it holds the cutting insert 108 in position on top of the spacer 104.
    [86] When in a secured, tight position, the seal 246 of the spreader plate 116 is compressed against the inner wall 202 of the upper portion 204 of the locking rod 106. The result is a liquid tight seal between the spreading plate 116 and the locking rod 106. It is clear that there is a liquid tight sealing between the locking bar and the passage for supply of, as described above. It is also clear that there is a liquid-tight seal between the locking bar and the spacer, as described above. It is also clear that there is a liquid-tight seal between the locking bar and the spreader plate, as described above. At this stage in the assembly process, the cutting component group is ready for use in a process for chip removal of material from a workpiece.
    [87] In operation, the refrigerant, which is typically pressurized, enters passageway 142 for supplying coolant through one end 144. Coolant flows through passageway 142 for supplying coolant to the seat surface 138. The locking bar 106 is fully screwed into passage 142 for supply of coolant at the other end 144 thereof. In this position, the axial lower end 174 of the locking rod 106 is located in passage 142 for supplying coolant. Coolant 18- enters through inlet opening 178 to the longitudinal hole 176 in the locking rod 106.
    [88] FIG. 36 is an isometric representation of another embodiment of a holder suitable for receiving the cutting component group. This holder 390 has a holder body 391 with opposite axially front end 392 and axially rear end 393. A shaft 396 is located at the rear end 393 and a head 395 is located at the front end 392.
    [89] FIG. 36B is an isometric representation of a holder 390A, similar to that of FIG. 36, but with an internal coolant passage 398A beginning at the bottom of the holder. FIG. 36C is an isometric representation of a holder 390B, similar to that of FIG. 36, but with an internal coolant passage passage 398B beginning at the lower surface of the holder. It should be clear that the passage for supplying coolant can enter the holder at any of a number of places, e.g. on the back, side or through the underside.
    [90] It is clear that the present invention provides a cutting component group, as well as a component group with cutting insert, to facilitate enhanced supply of coolant at the interface between the cutting insert and the workpiece (ie the insert / chip interface). This reduces excessive heat at the insert / chip interface during chip-forming removal of material from a workpiece. By providing a stream of coolant, excessive heat at the insert / chip interface is reduced, so that the build-up of chip material is reduced or reduced. By providing a stream of coolant to the insert / chip interface, the removal of chips from the insert / chip interface is facilitated, thereby minimizing the risk of a chip being cut. It is clear that the present invention provides advantages in connection with the friend being reduced at the insert / chip interface. _19-
    [91] The patents and other documents identified in this text are hereby incorporated by reference into this text. Other embodiments will become apparent to those skilled in the art upon consideration of the specification or practical application of the invention disclosed in this text. The intention is that the specification and examples are for illustrative purposes only, and are not intended to limit the scope of the invention. The actual scope and content of the invention are defined by the following claims.
    权利要求:
    Claims (18)
    [1]
    A cutting component group, for use in chip forming removal of material from a workpiece, the cutting component group comprising: a holder having a seat, the holder comprising a passage for supplying coolant; a locking bar having a longitudinal locking bar hole, the locking bar being attached to the seat in such a way that the longitudinal locking bar hole communicates with the passage for supplying coolant; a cutting insert with a central cutting insert opening, wherein at least a part of the locking rod is located in the central cutting insert opening; a clamping device attached to the holder and engaging the cutting insert, the clamping device having a spreading plate, the spreading plate having a lower surface, an integrated projection facing away from the lower surface of the spreading plate, the integrated projection comprising a central projection hole, the spreading plate comprising an inner passage, wherein the central projection hole communicates with the inner passage and wherein the longitudinal locking rod hole opens towards the central projection hole, whereby coolant flows to the central projection hole and to the inner passage, to then leave the inner passage towards the cutting insert.
    [2]
    The cutting component group of claim 1, further comprising a spacer received in the seat, the locking bar engaging the spacer to secure the spacer to the holder at the seat.
    [3]
    The cutting component group of claim 2, wherein the locking bar houses an O-ring seal, and the O-ring seal provides a liquid tight seal between the locking bar and the spacer. _21-
    [4]
    The cutting component group of claim 1, wherein the radial coolant depression begins at the central cutting insert opening and terminates at and at a radial distance inward from the corner cutting area, the radial coolant depression having a depth decreasing in direction from its beginning to its end.
    [5]
    A cutting component group according to claim 4, wherein the coolant leaving the radial coolant depression moves in an upward direction away from the surface abutting the cut.
    [6]
    The cutting component group according to claim 1, wherein the longitudinal reading rod hole has an upper part defined by an upper inner wall, and wherein the integrated projection houses a projection seal; and wherein at least a portion of the integrated projection extends into the upper portion of the longitudinal locking bar hole, whereby the projection seal seals against the upper inner wall and forms a liquid tight seal between the spreading plate and the reading rod.
    [7]
    The cutting component assembly of claim 1, wherein the spreading plate comprises a second inner passage in communication with the central projection hole, whereby coolant flows into the central projection hole and to the second inner passage, and then leaves the second inner passage towards the cutting insert.
    [8]
    A cutting component group according to claim 7, wherein the inner passage and the second inner passage converge towards each other.
    [9]
    A cutting component group according to claim 7, wherein the inner passage and the second inner passage are separated from each other.
    [10]
    The cutting component group of claim 1, wherein the diffuser plate further comprises a recess, and the inner passage opens at the recess. _22-
    [11]
    The cutting component assembly of claim 1, wherein the integrated projection extends into at least a portion of the longitudinal locking bar hole, the integrated projection housing an elastic seal, and the elastic seal providing a liquid tight seal between the spreader plate and the locking rod.
    [12]
    Component group with locking rod and spreading plate, for use with a holder having a passage for supplying coolant, a cutting insert and a clamping device, wherein the component group with locking rod and spreading plate comprises: a locking rod comprising a longitudinal locking rod hole, with a coolant inlet and a coolant outlet opening, the longitudinal locking bar hole having an upper part defined by an upper inner wall; a spreader plate having a lower surface with an integrated projection facing away from the lower surface of the spreading plate, the integrated projection having a central projection hole, the spreading plate comprising an internal passage communicating with the central projection hole and the longitudinal locking bar hole opening toward coolant flows into the central projection hole and to the inner passage, and then leaves the inner passage in the direction of the cutting insert.
    [13]
    A component group with a spreading plate according to claim 12, wherein the longitudinal locking bar hole has an upper part defined by an upper inner wall, and the integrated projection houses a projection seal, and at least a part of the integrated projection extends into the upper part of the longitudinal locking bar hole, the projection seal sealing against the upper inner wall and forming a liquid-tight seal between the spreader plate and the locking bar.
    [14]
    The component assembly with the locking bar and diffuser plate according to claim 12, wherein the diffuser plate comprises a second inner passage communicating with the central projection hole, whereby coolant flows into the central projection hole and to the second inner passage, and then leaves the second inner passage in direction against the cutting insert.
    [15]
    A component group with the locking bar and spreader plate according to claim 14, wherein the inner passage and the second inner passage converge towards each other.
    [16]
    A cutting component group for use in chip forming removal of material from a workpiece, the cutting component group comprising: a holder having a seat and comprising a passage for supplying coolant; a locking bar having a longitudinal locking bar hole communicating with the passage for supplying coolant; a cutting insert; a clamping device attached to the holder and engaging the cutting insert, and wherein the clamping device has a spreading plate with an integrated projection, comprising a central projection hole, the spreading plate comprising an internal passage, the central projection hole communicating with the internal passage and wherein the integrated the projection extends into at least a part of the longitudinal locking rod hole, the integrated projection housing an elastic seal and the elastic seal providing a liquid tight seal between the spreader plate and the locking rod, the longitudinal locking rod hole opening towards the central projection hole, thereby cooling the central projection hole and to the inner passage, and then leaves the inner passage in the direction of the cutting insert.
    [17]
    The cutting component assembly of claim 16, further comprising a spacer received in the seat, the locking bar engaging the spacer to secure the spacer to the holder on the seat. _24-
    [18]
    The cutting component group according to claim 17, wherein the locking rod houses an O-ring seal and the O-ring seal provides a liquid tight seal between the locking rod and the spacer.
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    同族专利:
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US5775854A|1991-09-27|1998-07-07|Iscar Ltd.|Metal cutting tool|
    EP0775031B1|1994-08-09|2002-07-03|The Edison Materials Technology Center|Cryogenic machining|
    US5722803A|1995-07-14|1998-03-03|Kennametal Inc.|Cutting tool and method of making the cutting tool|
    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|
    US6161990A|1998-11-12|2000-12-19|Kennametal Inc.|Cutting insert with improved flank surface roughness and method of making the same|
    US6652200B2|2001-11-01|2003-11-25|Rolf H. Kraemer|Tool holder with coolant system|
    SE526894C2|2004-03-03|2005-11-15|Sandvik Intellectual Property|Cutting tools and tool heads with tubular coolant duct|
    SE530581C2|2006-11-28|2008-07-08|Sandvik Intellectual Property|Chip separation tool and basic body comprising two channels for a fluid|
    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|
    US7625157B2|2007-01-18|2009-12-01|Kennametal Inc.|Milling cutter and milling insert with coolant delivery|
    IL206283D0|2010-06-10|2010-11-30|Iscar Ltd|Cutting tool and nozzle therefor|EP3603862A4|2017-03-24|2020-12-23|Sumitomo Electric Hardmetal Corp.|Milling tool|
    CN109202109B|2017-07-07|2020-03-17|黄宪仁|Structure of turning tool rest|
    US20200230710A1|2017-07-27|2020-07-23|Sumitomo Electric Hardmetal Corp.|Cutting tool holder|
    法律状态:
    2016-09-27| NAV| Patent application has lapsed|
    优先权:
    申请号 | 申请日 | 专利标题
    US13/664,568|US8827599B2|2010-09-02|2012-10-31|Cutting insert assembly and components thereof|
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