• 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 HEAD, ROD, AND, TORKING MILL T. A cutting head (14) is described for a T-slot cutter (10) which includes opposite top and middle surfaces of the cutting head (18, 20) extending perpendicular to the geometric axis of rotation of the head (A) and a peripheral surface of the head (22) extending between them.The cutting head (14) also includes cutting portions (24) located along the peripheral surface of the head (22) and a head protuberance (32). The head protrusion (32) extends from the intermediate surface of the cutting head (20) and includes a torque transfer portion of the head (42). The cutting head (14) additionally includes a support surface for the cutting head (34) and a bore of the head (36) coaxial with the geometric axis of rotation of the head (A). The hole in the head (36) extends between the upper surface of the cutting head (18), and opens towards it, and the protrusion of the head (32). The cutting head (14) also includes a head centering portion (40) distinct from the torque transfer portion of the head (42) and located in an axial position different from it, along the geometric axis of rotation of the head (A ).
    公开号:BR112013001621B1
    申请号:R112013001621-3
    申请日:2011-07-24
    公开日:2020-12-01
    发明作者:Amir Marshansky
    申请人:Iscar Ltd；
    IPC主号:
    专利说明:

    Field of the Invention
    [001] The subject matter of this application concerns T slot cutters and portions thereof and, in particular, cutting head and stem portions thereof. Fundamentals of the Invention
    [002] T-slot cutters are known, for example, from US patents US 4,733,995 and US 6,488,450. In the field, methods are known for attaching a T-slot cutter head to a T-slot cutter stem. Tightening or clamping arrangements for T-slot cutters perform three operations: centering, torque transfer and axial location of a element in relation to the other.
    [003] US patent 6,623,202 discloses a known tightening arrangement.
    [004] It is an objective of the present invention to provide an unprecedented and improved T-slot cutter and / or its cutting head and / or its shank. Summary of the Invention
    [005] According to a first aspect of the subject matter of the present application, a cutting head is provided for a slot milling cutter T. The cutting head comprises: opposite top and middle surfaces of the cutting head extending perpendicularly to a geometric axis of rotation of the head (A) defining an axial direction of the cutting head, and a peripheral surface of the head extending between them; cutting portions located along the peripheral surface of the head; a head protuberance extending from the intermediate surface of the cutting head and comprising a torque transfer portion of the head; a cutting head support surface; a hole in the coaxial head with the geometric axis of rotation of the head (A), the head hole extending between the top surface of the cutting head, and opening towards it, and the head protuberance; and a head centering portion distinct from the torque transfer portion of the head, and located in an axial portion different from it, along the geometric axis of rotation of the head (A).
    [006] The cutting head may have a one-piece construction or may, for example, comprise replaceable cutting inserts.
    [007] The torque transfer portion of the head can comprise a plurality of recesses, each of which comprises a torque transfer surface of the head. Each head transfer torque surface can be parallel to the head rotation axis (A) and can be flat.
    [008] Each of the plurality of recesses can open axially in an outward direction from the intermediate surface of the cutting head and open in a radially inward direction.
    [009] The head centering portion can be located in the head hole and can be axially located between the torque transfer portion of the head and the top surface of the cutting head. Most of the head centering portion can be axially located between the intermediate top surfaces of the cutting head. The entire centering portion of the head can be axially located between the intermediate upper surfaces of the cutting head. The centering portion of the head can have an axial length L1 and a torque transfer portion of the head can have an axial length L2 and where the ratio L2 / L1 is between 0.5 and 2. The centering portion of the head can comprise a head centering surface with at least three points arranged in a first circle, the first circle being concentric with the head rotation axis (A), and the first circle being concentric with the head rotation axis ( A), and oriented perpendicularly to it, the first circle having a diameter less than or equal to a minimum diameter of the torque transfer portion of the head at its points arranged in a second circle concentric to the geometric axis of rotation of the head (A) , and oriented perpendicularly to it. The entire centering surface can be located along the periphery of a coaxial cylinder with the geometric axis of rotation of the head (A).
    [0010] The cutting head may have a screw support surface, which is axially located between the upper surface of the cutting head and the centering portion of the head. The cutting head may have a screw bearing surface that is axially located between the upper and intermediate surfaces of the cutting head.
    [0011] The cutting head may comprise a support surface of the cutting head on the protuberance of the distal head of the intermediate surface of the cutting head.
    [0012] According to another aspect of the subject matter of the present application, a rod is provided for a slot milling cutter T. The rod has a geometric axis of rotation of the rod (B) defining an axial direction of the rod. The stem is configured to fit with a cutting head and comprises a protrusion of the stem extending between the lower surface of the stem and the upper surface of the stem.
    [0013] The stem protuberance comprises a torque transfer portion of the stem, a centering portion of the stem distinct from the torque transfer portion of the stem and located in a different axial position along the geometric axis of rotation of the stem (B), and a hole in the stem opening to the upper surface of the stem.
    [0014] The rod may have a one-piece construction.
    [0015] At least a portion of the lower stem surface may constitute a stem support surface.
    [0016] The torque transfer portion of the rod may comprise a plurality of peripheral protrusions, each of which comprises at least one torque transfer surface of the rod. Each rod torque transfer surface can be parallel to the rod's axis of rotation (B) and can be flat.
    [0017] Each peripheral protuberance can comprise exactly two torque transfer surfaces of the stem.
    [0018] The stem protrusion may comprise a plurality of notches, each notch having a torque transfer surface of the notch adjacent to one of the torque transfer surfaces of the rod. Each notch torque transfer surface can be coplanar with an associated surface of the stem torque transfer surfaces.
    [0019] The stem centering portion can be axially located between the torque transfer portion of the stem and the upper surface of the stem. The stem protrusion may have a peripheral surface of the stem protrusion, and the diameter of the stem centering portion may be the same diameter as the peripheral surface of the stem protrusion. The centering portion of the stem may have an axial length L3 and the torque transfer portion of the stem may have an axial length L4 and where the ratio L4 / L3 is between 0.5 and 2. The centering portion of the stem may comprise a stem centering surface with at least three points arranged in a first circle, the first circle being concentric with the geometric axis of rotation of the stem (B), and oriented perpendicularly to it, the first circle with a diameter less than or equal to a maximum diameter of the torque transfer portion of the stem at its points arranged in a second circle concentric with the geometric axis of rotation of the stem (B), and oriented perpendicularly to it. The entire centering surface can be along the periphery of a coaxial cylinder with the axis of rotation of the rod (B).
    [0020] According to an additional aspect of the subject matter of the present application, a slot cutter T is provided with a geometric axis of rotation of the cutter (C) and comprising a cutting head and a shank, coaxially and loosely attached one in the another through a clamping element. The torque transfer portion of the stem fits the torque transfer portion of the head, the centering portion of the stem fits the centering portion of the head, and at least a portion of the lower stem surface rests on the support surface of the stem. cutting head.
    [0021] The cutting head and the T-slot cutter shank can have any of the features described above and below. Brief Description of Drawings
    [0022] For a better understanding of the present invention and to show how it can be put into practice, reference will now be made to the attached drawings, in which: Figure 1 is an exploded isometric view of a T-slot cutter according to the present invention; figure 2 is a side view of the slot cutter T of figure 1 in an assembled state; figure 3 is a cross section taken along line IIIIII of figure 2; and figure 4 is a cross section taken along line IVIV in figure 2.
    [0023] It is noticed that, for the sake of simplification and clarity of illustration, elements shown in the figures are not necessarily drawn to scale. For example, the dimensions of some of the elements may be exaggerated in relation to other elements for the sake of clarity, or several physical components may be included in a functional block or element. In addition, where deemed appropriate, reference numbers may be repeated between figures to indicate corresponding or similar elements. Detailed Description of the Invention
    [0024] In the following description, several aspects of the subject matter of this application will be described. For the purpose of explanation, configurations and specific details are presented in sufficient detail to provide a complete understanding of the subject matter of the present application. However, it will also be apparent to those skilled in the art that the subject matter of the present application can be practiced without the specific details presented here.
    [0025] Reference is made to Figures 1 to 4, showing a T 10 slot cutter according to the present invention. Slot cutter T 10 has a geometric axis of rotation of cutter C and includes a shank 12 and a coaxial cutting head 14 and is loosely attached to the shank 12 by means of a clamping element, such as a screw 17.
    [0026] The cutting head 14 can be of the type used in metal cutting operations. According to some embodiments, the cutting head 14 can be made of hard wear-resistant material such as cemented carbide, either by press forming or by injection molding, and then sintering carbide powders in a binder. The rod 12 can be made of steel or another metal or metallic compound.
    [0027] The cutting head 14 includes an upper surface of the cutting head 18, an intermediate surface of the opposite cutting head 20 and a peripheral surface of the head 22 extending between them. The cutting head 14 has a geometric axis of rotation of the head A that is perpendicular to the upper and intermediate surfaces of the cutting head 18, 20. In the non-limiting example embodiment shown, the peripheral surface of the head 22 includes ten cutting portions 24 However, any appropriate number of cutting portions 24 can be included with the cutting head 14.
    [0028] Each cutting portion 24 may include a cutting edge 26 formed at an intersection of a chip exit surface 28 and a relief surface 30.
    [0029] The cutting head 14 includes a head protuberance 32 that can be cylindrical. The cutting head 14 includes a cutting head support surface 34. The cutting head 34 supporting surface can be distal from the intermediate surface of the cutting head 20.
    [0030] The head protrusion 32 can extend in a perpendicular direction from the intermediate surface of the cutting head 20, in a direction out of the upper surface of the cutting head 18. The protrusion of the head 32 can end on the surface head support bracket 34. The head protrusion includes a torque transfer portion of the head 42.
    [0031] The cutting head 14 includes a head hole 36 that is coaxial with the head rotation axis (A). The head hole 36 extending between the top surface of the cutting head 18, and opening towards it, and the head protuberance 32. The head hole 36 is sized to receive a protuberance
    [0032] The cutting head 14 includes a centering portion of the head 40 distinct from the torque transfer portion of the head 42, and located in an axial position different from it, along the geometric axis of rotation of the head (A). In the non-limiting example shown, the centering portion of the head 40 is axially adjacent to the torque transfer portion of the head 42. Another possibility is that the centering portion of the head 40 can be axially spaced from the torque transfer portion of the head 42. The centering portion of the head 40 comprises a centering surface of the head 41 with at least three points arranged in a first circle, the first circle being concentric and oriented perpendicular to the geometric axis of rotation of the head (A). The first circle has a diameter less than or equal to the minimum diameter of the torque transfer portion of the head 42 at its points arranged in a second concentric circle and oriented perpendicular to the geometric axis of rotation of the head (A). The centering surface 41 can be continuous in the circumferential direction. In other words, all points of the centering surface 41 can be arranged along a periphery of a coaxial cylinder with the geometric axis of rotation of the head (A), and thus can be considered a centering surface of the cylindrical head 41.
    [0033] The centering portion of the head 40 can be located in the hole of the head 36. The centering portion of the head 40 can be axially located between the upper surface of the cutting head 18 and the torque transfer portion of the head 42. Put differently, with respect to the geometric axis of rotation of the head A, the location of the centering portion of the head 40 is axially distinct from the torque transfer portion of the head 42. In the description and claims, the use of the word “axial” and “radial” with respect to a location, length, portion, etc. of the cutting head 14 must be relative to the geometric axis of rotation of the head (A). According to some embodiments, the entire centering portion of the headstock 40 is axially located between the upper and intermediate surfaces of the cutting head 18, 20. According to some embodiments, most of the centering portion of the headstock 40 is axially located between the upper and middle surfaces of the cutting head 18, 20. In other words, the centering portion of the head 40 has an axial length L1, the majority of which can extend between the upper and middle surfaces of the cutting head 18, 20. According to some embodiments, the centering portion of the head 40 can extend from between the upper and intermediate surfaces of the cutting head 18, 20 to a point axially outside of it. A possible advantage of the centering portion of the head 40 being located at least partially between the upper and intermediate surfaces of the cutting head 18, 20 may be that the slot cutter T 10 is provided with reinforcement, that is, with greater rigidity, when subjected to cutting forces.
    [0034] According to some modalities, the cutting head 14 can include a support surface of the screw 48, which is located partially in the hole of the head 36, and partially in the upper surface of the cutting head 18. Alternatively, the entire surface support screw 48 can be axially located between the upper and intermediate surfaces of the cutting head 18, 20. Such confirmation can allow the screw 17 to be disposed internally in the hole of the head 36 without protruding from it. In the non-limiting example shown, the centering portion of the head 40 is axially located between the intermediate surface of the cutting head 20 and the bearing surface of the screw 48. In other words, the bearing surface of the screw 48 can be located axially between the upper surface of the cutting head 18 and the centering portion of the head 40.
    [0035] The torque transfer portion of the head 42 can be arranged between the centering portion 40 and the supporting surface of the cutting head 34. Differently positioned, the torque transfer portion of the head 42 can be axially located between the centering portion 40 and the cutting head 34 support surface. The torque transfer portion of the head 42 has an axial length L2, and the ratio L2 / L1 can be between 0.5 and 2. A possible advantage for this reason it may be that the upper surface of the cutting head 18 can be free of obstructions, being further configured for precise centering and torque transfer of the slot cutter T 10.
    [0036] The torque transfer portion of the head 42 may, according to some modalities, include a plurality of recesses 44. In the non-limiting example embodiment shown, there are six equally spaced peripheral recesses 44. The recesses 44 can be opened axially in a direction away from the intermediate surface of the cutting head 20, and can open outwardly in a direction radially inward, that is, perpendicular to the geometric axis of rotation of the head (A) and to the interior of the head hole 36 Each recess 44 includes a single torque transfer surface of the head 46. The torque transfer surface of the head 46 can be planar. Each torque transfer surface of the head 46 can be parallel to the geometric axis of rotation of the head (A). The torque transfer surface of the head 46 can be elongated, with its dimension in length extending parallel to the geometric axis of rotation of the head A. The recesses 44 are designed so that, when the slot cutter T 10 is assembled, no other surface of each recess 44, other than the torque transfer surface of the head 46, makes contact with any surface of the torque transfer portion of the rod 58.
    [0037] The axis of rotation of the stem (B) extends longitudinally through the center of the stem 12. The axis of rotation of the stem (B) is coaxial with the axis of rotation of the head (A) when the stem 12 is tightened on the shaving head 14.
    [0038] The stem 12 includes a protrusion of the stem 38.
    [0039] The stem protrusion 38 extends between a lower surface of the stem 50 and an upper surface of the stem 52. The protrusion of the stem 38 comprises a torque transfer portion of the stem 58, a distinct centering portion of the stem 66 of the torque transfer portion of the stem 58 and located in an axial position different from it along the geometric axis of rotation of the stem (B), and a hole of the stem 56 opening to the upper surface of the stem 52. In the non-limiting example shown , the centering portion of stem 66 is axially adjacent to the torque transfer portion of head 42. Another possibility is that the centering portion of stem 66 can be axially spaced from the torque transfer portion of head 42.
    [0040] At least a portion of the lower surface of the rod 50 may constitute a supporting surface of the rod 50. In the non-limiting example shown, the entire lower surface of the rod 50 constitutes the supporting surface of the rod 50.
    [0041] The support surface of the stem 50 can be perpendicular to the geometric axis of rotation of the stem (B).
    [0042] The stem protrusion 38 can extend perpendicularly on the support surface of the stem 50 and terminates on an upper surface of the stem 52. The protrusion of the stem 38 can be cylindrical. The stem protrusion 38 may include a peripheral surface of the stem protrusion 54 that extends between the upper surface of the stem 52 and the bearing surface of the stem 50.
    [0043] The stem hole 56 can be threaded.
    [0044] The torque transfer portion of the stem 58 may include a plurality of peripheral protrusions 60. Each of the protrusions 60 may include at least one torque transfer surface of the stem 62. In the non-limiting example embodiment shown, there may be six equally spaced peripheral protrusions 60 that extend radially from the protrusion of the stem 38. The protrusions 60 are formed to correspond to six recesses 44 of the cutting head 14.
    [0045] Each torque transfer surface of rod 62 may extend parallel to the axis of rotation of rod B. Each torque transfer surface of rod 62 may extend from the bearing surface of rod 50. Each The torque transfer surface of the rod 62 can be flat. Each protrusion 60 can include exactly two torque transfer surfaces of the rod 62, each of which can extend on opposite sides of the protrusion 60. Each protuberance 60 including exactly two torque transfer surfaces of the rod 62 can allow the protrusion of the stem 38 is configured to allow an associated stem 12 to work with either the left or right cutting head 14 (in the mode shown in the drawings, only a right cutting head is revealed). The torque transfer surfaces of the stem 62 can be located on two opposite sides of an axially extending central surface 63. The torque transfer portion of the stem 62 of a given protrusion can be tilted outward so that they converge outwards to an imaginary line that is radially spaced from the central surface that extends axially associated 63 belonging to this protuberance 60.
    [0046] The stem protrusion 38 can be formed with a plurality of notches 64 (best seen in figure 1) adjacent to the torque transfer surfaces of the stem 62. Each notch 64 can be located between two protrusions 60. Each of the the notches 64 may have a torque transfer surface of the notch 65A adjacent to one of the torque transfer surfaces of the rod 62. In the non-limiting example embodiment shown, each of the notches 64 has two adjacent notch torque transfer surfaces 65A , 65B. The torque transfer surfaces of the notch 65A, 65B forming a V-shaped notch in the cross section. Each notch torque transfer surface 65A, 65B can be coplanar with an associated, i.e. adjacent, 62 torque transfer surface.
    [0047] The area of each torque transfer surface of rod 62 can be combined with a notch torque transfer surface 65A, 65B extending adjacent to it. In this way, the torque transfer surfaces of the rod 62 can be part of an enlarged surface contact area including the adjacent notch torque transfer surfaces 65A, 65B. A possible advantage of such an enlarged surface contact area may be the low deformation in each protuberance 60, and / or guarantee of surface-to-surface contact with the cutting head 14.
    [0048] The centering portion of the stem 66 comprises a centering surface of the stem 67 with at least three points arranged in a first circle, the first circle being concentric with the geometric axis of rotation of the stem (B), and oriented perpendicularly to he. The first circle has a diameter less than or equal to a maximum diameter of the torque transfer portion of the stem 58 at its points arranged in a second circle concentric with the axis of rotation of the stem (B), and oriented perpendicularly thereto. The centering surface of the stem 67 can be continuous in the circumferential direction. In other words, all points on the centering surface of the stem 67 can be arranged along the periphery of a coaxial cylinder with the axis of rotation of the stem (B), and thus can be considered a centering surface of the cylindrical stem 67. The entire centering surface 67 can be arranged along the periphery of a coaxial cylinder with the axis of rotation of the rod (B). The centering portion of the stem 66 can be located axially between the upper surface of the stem 52 and the torque transfer portion of the stem 58.
    [0049] The centering portion of the stem 66, according to some modalities, may have the same diameter as the peripheral surface of the stem protuberance 54. Such diameter may allow a simplified production of the stem projection 38. The projection of stem 38 can be cylindrical. The centering portion of stem 66 can extend from the upper surface of stem 52 to the torque transfer portion of stem 58. The centering portion of stem 66 has an axial length L3 and the torque transfer portion the rod 58 has an axial length L4. The L4 / L3 ratio can be between 0.5 and 2. A possible advantage of a separate centering portion 66 and torque transfer portion 58 may be that the T 10 slot cutter has a high tightening accuracy, even when At the same time, the matching of the stem 12, or, for example, the press formation of the cutting head 14 is optionally performed with less precision, decreasing the production costs.
    [0050] In an assembled position of the T 10 slot cutter (shown in figure 2), the screw is threaded into the hole of the stem 56 of the stem protrusion 38, and tightens the cutting head 14 on the stem 12. The geometric axis of rotation A of the cutting head 14 is coaxial with the axis of rotation B of the shank 12 and the axis of rotation C of the cutter T 10. The support surface of the cutting head 34 rests on the support surface of the shank 50 The centering portion of the stem 66 makes contact with the centering portion of the head 40. At least a portion of the centering portion of the stem 66 can be located in the centering portion of the head 40. Each peripheral protrusion 60 of the head transfer portion torque of the rod 58 of the rod 12 is located within a respective counterpart recess 44 of the torque transfer portion of the cutting head 42 of the cutting head 14. The torque transfer portion of the stem 58 fits the torque transfer portion of the c abeçote 42.
    [0051] In the non-limiting example mode shown, at least two torque transfer surfaces of rod 62 and adjacent notch torque transfer surfaces 65A rest on the respective torque transfer surfaces of counterpart head 46. When the tool operates, according to some modalities, the rod 12 may be elastically deformed, in such a way that three or more torque transfer surfaces of the head 46 rest on the respective torque transfer surfaces of the counterpart rod 62 and transfer surfaces of notch torque 65A. In some cases, all the torque transfer surfaces of the cutting head 46 of the cutting head 14 rest on all respective torque transfer surfaces of the stem 62 and torque transfer surfaces of the notch 65A of the stem 12. An elastically deformable stem 12 can allow dispersion of the load of the cutting force between the torque transfer surfaces in contact.
    [0052] It is understood that the protuberance of stem 38 could also optionally be devoid of torque transfer surfaces of notch 65A.
    [0053] The cutting head and shank support surfaces 34, 50 can constitute a location portion 68 of the T-slot cutter 10. The centering portions of the head and shank 40, 66 can constitute a centering portion 70 of the T-slot cutter 10. The stem torque transfer portion head 42, 58, and optionally the notch torque transfer surfaces 65A, may constitute a torque transfer portion 72 of the T 10 slot cutter The centering portion 70, the torque transfer portion 72 and the locating portion 68 can constitute a clamping arrangement 16 of the slot cutter T 10. Notably, the centering portion 70, torque transfer portion 72 and portion location 68 may be distinct from each other. To elaborate, in the non-limiting example shown, the torque transfer portion 72 is arranged between the centering position 70 and the locating portion 68. Similarly, the centering portion of the head 40, torque transfer portion of the head 42 and head support surface 34 can be distinguished from each other. Similarly, the centering portion of the stem 66, torque transfer portion of the stem 58 and the bearing surface of the stem 50 can be distinguished from each other. In any of the above examples, the portions and surfaces are in a different position from the other portions. For example, in the non-limiting example shown, the centering portion of the head 40 is located in an axial position different from the torque transfer portion of the head 42, and the supporting surface of the head 34 is located in a radial position different from both the centering portion of the head 40 and the torque transfer portion of the head 42, in relation to the geometric axis of rotation of the head (A). Similarly, in the non-limiting example shown, the centering portion of stem 66 is located in an axial position different from the torque transfer portion of stem 58, and the bearing surface of stem 50 is located in a radial position different from both the portion centering of the stem 66 and the torque transfer portion of the stem 58, in relation to the geometric axis of rotation of the stem (B).
    [0054] The centering portion 70 is axially separated from the torque transfer portion 72; consequently, the clamping arrangement 16 can be stretched. A possible advantage with an elongated clamping portion 16 is that it can provide an associated T slot cutter 10 with reinforcement against bending moment in the clamping portion 16.
    [0055] As best shown in figure 2, it should be noted additionally that no portion of the T 10 slot cutter sticks out on the top surface of the cutting head 18.
    [0056] Although the present invention has been described with reference to one or more specific modalities, the description should be illustrative as a whole and should not be construed as limiting the invention to the modalities shown. It is realized that various modifications can occur to those skilled in the art, although not specifically shown here, which, however, are within the scope of the invention.
    权利要求:
    Claims (19)
    [0001]
    1. Cutting head (14) for a T-slot cutter (10), comprising: opposite upper and intermediate surfaces of the cutting head (18, 20) extending perpendicularly to a geometric axis of rotation of the head (A) defining an axial direction of the cutting head, and a peripheral surface of the head (22) extending between them; cutting portions (24) located along the peripheral surface of the head (22); a head protuberance (32) extending from the intermediate surface of the cutting head (20) and comprising a torque transfer portion of the head (42); a cutting head support surface (34); and a head hole (36) coaxial with the geometric axis of rotation of the head (A), the head hole (36) extending between the top surface of the cutting head (18), and opening towards it, and the head protuberance (32); characterized by the fact that the cutting head (14 comprises: a head centering portion (40) distinct from the torque transfer portion of the head (42) and located in an axial position different from them, along the axis of rotation the head (A).
    [0002]
    Cutting head (14) according to claim 1, characterized in that the torque transfer portion of the head (42) comprises a plurality of recesses (44), each of which comprises a transfer surface head torque (46).
    [0003]
    Cutting head (14) according to either of claims 1 or 2, characterized in that each torque transfer surface of the head (46) is parallel to the geometric axis of rotation of the head (A).
    [0004]
    Cutting head (14) according to either of claims 2 or 3, characterized in that the torque transfer surface of the head (46) is flat.
    [0005]
    Cutting head (14) according to any one of claims 2 to 4, characterized in that each of the plurality of recesses (44) opens axially in a direction outward from the intermediate surface of the cutting head ( 20) and opens in a radially inward direction.
    [0006]
    6. Cutting head (14) according to any one of claims 1 to 5, characterized in that the head centering portion (40) is located in the head hole (36) and is axially located between the head portion torque transfer from the head (42) and the upper surface of the cutting head (18).
    [0007]
    Cutting head (14) according to any one of claims 1 to 6, characterized in that the major part of the head centering portion (40) is axially located between the upper and intermediate surfaces of the cutting head ( 18, 20).
    [0008]
    8. Cutting head (14) according to any one of claims 1 to 7, characterized in that the entire centering portion of the head (40) is axially located between the upper and intermediate surfaces of the cutting head (18, 20).
    [0009]
    Cutting head (14) according to any one of claims 1 to 8, characterized in that the cutting head (14) has a support surface for the screw (48) that is axially located between the upper surface of the cutting head (18) and the centering portion of the head (40).
    [0010]
    Cutting head (14) according to any one of claims 1 to 9, characterized in that the cutting head (14) has a support surface for the screw (48) that is axially located between the upper and lower surfaces. cutter head (18, 20).
    [0011]
    Cutting head (14) according to any one of claims 1 to 10, characterized in that the head centering portion (40) has an axial length L1 and the torque transfer portion of the head (42) has axial length L2 and where the ratio L2 / L1 is between 0.5 and 2.
    [0012]
    Cutting head (14) according to any one of claims 1 to 11, characterized in that the head centering portion (40) comprises: a head centering surface (41) with at least three points arranged in a first circle; the first circle being concentric with the geometric axis of rotation of the head (A), and oriented perpendicularly to it; the first circle with a diameter less than or equal to a minimum diameter of the torque transfer portion of the head (42) at its points arranged in a second circle concentric with the geometric axis of rotation of the head (A), and oriented perpendicularly to it .
    [0013]
    Cutting head (14) according to any one of claims 1 to 12, characterized in that the entire centering surface (41) is arranged along the periphery of a coaxial cylinder with the geometric axis of rotation of the head (THE).
    [0014]
    14. Cutting head (14) according to any one of claims 1 to 13, characterized in that it additionally comprises a support surface of the cutting head (34) on the protuberance of the head (32) distal to the intermediate surface of the head cutting (20).
    [0015]
    15. T-slot cutter (10), characterized by the fact that it has a geometric axis of rotation of the cutter (C) and comprising: a cutting head (14) as defined in claim 1, and a shank (12) has a geometric axis of rotation of the stem (B) defining an axial direction of the stem (12), the stem (12) configured to fit with a cutting head (14) and comprising a stem protuberance (38) extending between a surface lower stem (50) and an upper stem surface (52), the stem protrusion (38) comprises: a torque transfer portion of the stem (58); a stem centering portion (66) distinct from the torque transfer portion of the stem (58) and located in a different axial position along the axis of rotation of the stem (B), and a hole in the stem (56 ) opening out of the upper surface of the shank (52), in which: the cutting head (14) is coaxially and reliably secured to the shank (12) by means of a clamping element; the torque transfer portion of the rod (58) fits the torque transfer portion of the head (42); the stem centering portion (66) fits the head centering portion (40); and at least a portion of the lower surface of the shank (50) rests on the support surface of the cutting head (34).
    [0016]
    16. T-slot cutter (10) according to claim 15, characterized in that no portion of the T-slot cutter (10) protrudes from the upper surface of the cutting head (18).
    [0017]
    17. T-slot cutter (10) according to claim 15 or 16, characterized in that: the torque transfer portion of the head (42) comprises a plurality of recesses (44), each of which comprises a torque transfer surface of the head (46); the torque transfer surface of the head (46) of each recess (44) makes contact with the torque transfer portion of the rod (58); and no other surface of each recess (44), apart from the torque transfer surface of the head (46), makes contact with the torque transfer portion of the rod (58).
    [0018]
    18. T-slot cutter (10) according to claim 17, characterized in that: the torque transfer portion of the rod (58) comprises a plurality of peripheral protrusions (60), each of which comprises at least a torque transfer surface of the rod (62); the contact of the torque transfer surface of the head (46) with the torque transfer portion of the rod (58) is through its torque transfer surfaces of the rod (62).
    [0019]
    T-slot cutter (10) according to any one of claims 15 to 18, characterized in that: the torque transfer portion of the rod (58) and the torque transfer portion of the head (42) constitute the torque transfer portion of the slot cutter T (72); the stem centering portion (66) and the head centering portion (40) constitute a centering portion of the slot milling cutter T (70); at least a portion of the lower surface of the shank (50) and the supporting surface of the cutting head (34) constitute a location portion of the T-slot cutter (68); and the centering portion of the slotting cutter T (70), the torque transfer portion of slotting cutter T (72) and the location portion of slotting cutter T (68) are each distinct and are in a position different from each other.
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    同族专利:
    公开号 | 公开日
    JP2013534189A|2013-09-02|
    WO2012023127A1|2012-02-23|
    JP5808810B2|2015-11-10|
    PT2605877T|2020-10-30|
    BR112013001621A2|2016-05-24|
    CA2805240C|2016-09-20|
    PL2605877T3|2021-03-08|
    RU2013111882A|2014-09-27|
    KR101567175B1|2015-11-06|
    CN103052460B|2016-01-27|
    IL207624D0|2010-12-30|
    KR20140002605A|2014-01-08|
    US8708611B2|2014-04-29|
    HUE052483T2|2021-05-28|
    ES2822339T3|2021-04-30|
    CA2805240A1|2012-02-23|
    US20120039676A1|2012-02-16|
    EP2605877B1|2020-09-16|
    CN103052460A|2013-04-17|
    EP2605877A1|2013-06-26|
    RU2562655C2|2015-09-10|
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    法律状态:
    2018-12-26| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2019-09-17| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2020-06-02| B07A| Technical examination (opinion): publication of technical examination (opinion) [chapter 7.1 patent gazette]|
    2020-11-03| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2020-12-01| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 24/07/2011, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    IL207624|2010-08-16|
    IL207624A|IL207624D0|2010-08-16|2010-08-16|T-slot cutter|
    PCT/IL2011/000593|WO2012023127A1|2010-08-16|2011-07-24|T-slot cutter having separate centering and torque-transmitting portions|
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