Slotting tool

Abstract

According to the slotting tool, a first cutting edge is arranged on a first tool bit, a second cutting edge is arranged on a second tool bit, and the distance between the first cutting edge and a preset central axis is larger than the distance between the second cutting edge and the preset central axis, so that in the process of machining a workpiece through the slotting tool, the machining efficiency is improved, and the machining efficiency is improved. The second cutting edge and the first cutting edge can cut part of allowance on the workpiece respectively, so that when the slotting tool is used for cutting large allowance on the workpiece, the allowance needing to be cut on the workpiece can be allocated to the first cutting edge and the second cutting edge; the cutting allowance independently needed by the first cutting edge and the second cutting edge is reduced, so that the service life of the first cutting edge and the second cutting edge is prolonged, and the service life of the slotting tool is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of cutting tools for machining, and in particular to a shearing tool. Background Technology

[0002] Unlike milling cutters, a cutting tool does not rotate when cutting a workpiece; instead, it moves linearly in a certain direction. Consequently, when faced with a large amount of material to be cut, the cutting effect of a cutting tool is not as good as that of a milling cutter.

[0003] When machining holes or grooves on a workpiece, if the hole or groove wall is not a circular arc surface, it is difficult to complete the machining of the hole or groove using milling tools. In this case, workers often choose to use a cutting tool to machine the hole or groove. However, when the cutting allowance of the cutting tool is large, the cutting edge of the cutting tool is easily damaged, thus affecting the service life of the cutting tool. Utility Model Content

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art. This utility model provides a cutting tool. The cutting tool of this embodiment still has a long service life when the required cutting allowance is large.

[0005] The inserter provided according to an embodiment of the present invention includes a blade body, a first cutter head, and a second cutter head; the blade body has a preset central axis extending along a first direction; the first cutter head is connected to one end of the blade body and has a first cutting edge; the second cutter head is connected to the end of the first cutter head away from the blade body, and along a second direction, the thickness of the second cutter head gradually decreases in the first direction, the second direction is inclined relative to the first direction, and a second cutting edge is formed at the end of the second cutter head with the greatest thickness in the first direction, the first cutting edge and the second cutting edge are distributed along the first direction, and the distance between the first cutting edge and the preset central axis is greater than the distance between the second cutting edge and the preset central axis.

[0006] The insert tool described in this utility model has at least the following beneficial effects: In the insert tool of this application, a first cutting edge is provided on the first cutting head, and a second cutting edge is provided on the second cutting head. The distance between the first cutting edge and the preset central axis is greater than the distance between the second cutting edge and the preset central axis. Therefore, during the machining process of the workpiece by the insert tool of this application, the second cutting edge and the first cutting edge can respectively cut off part of the remaining material on the workpiece. Thus, when the insert tool of this application faces the cutting of a large remaining material on the workpiece, the remaining material to be cut on the workpiece can be distributed to the first cutting edge and the second cutting edge, thereby reducing the remaining material to be cut by the first cutting edge and the second cutting edge alone, thereby extending the service life of the first cutting edge and the second cutting edge, and further extending the service life of the insert tool of this application.

[0007] According to the embodiment of the present invention, the inserter has a second cutter head having a first end face and a second end face distributed along a first direction. The first end face is connected to the first cutter head and is perpendicular to a preset central axis. The second end face is spaced apart from the preset central axis by a first included angle, and the angle a1 of the first included angle satisfies: 84°≤a1≤86°.

[0008] According to the embodiment of the present invention, the inserter has a second cutting head having a first side, a second side, a third side, and a fourth side that are smoothly connected in sequence. The two ends of the first side, the second side, the third side, and the fourth side are respectively connected to the first end face and the second end face. A second cutting edge is formed at the junction of the first side and the second end face. A first secondary cutting edge is formed at the junction of the second side and the first end face. A second secondary cutting edge is formed at the junction of the fourth side and the first end face. Both the first secondary cutting edge and the second secondary cutting edge have a secondary cutting edge rake angle. The angle a2 of the secondary cutting edge rake angle satisfies: 1°≤a2≤3°.

[0009] According to the embodiment of this utility model, the first side, the second side, the third side and the fourth side are smoothly connected by a rounded corner structure in sequence, and the rounded corner radius r of the rounded corner structure satisfies: 0.22mm≤r≤0.28mm.

[0010] According to the embodiment of the present invention, the inserter has a second included angle between the second side and the fourth side, and the angle a3 of the second included angle satisfies: 19.7°≤a3≤20.3°.

[0011] According to the embodiment of the present invention, the cutting tool has a first cutting rake angle and a first cutting clearance angle on the first cutting edge. The angle b1 of the first cutting rake angle satisfies: 1°≤b1≤3°, and the angle b2 of the first cutting clearance angle satisfies: 2°≤b2≤4°.

[0012] According to the embodiment of the present invention, the cutting tool has a cutting edge rake angle, a cutting edge first clearance angle and a cutting edge second clearance angle. The angle c1 of the cutting edge rake angle satisfies: 1°≤c1≤3°, the angle c2 of the cutting edge first clearance angle satisfies: 2°≤c2≤4°, and the angle c3 of the cutting edge second clearance angle satisfies: 6°≤c3≤10°.

[0013] According to the embodiment of the present utility model, the blade body includes a handle portion and a neck portion connected together. The handle portion and the neck portion are distributed along a first direction. The end of the neck portion away from the handle portion is connected to a first cutting head. The end of the neck portion near the first cutting head is provided with a third cutting edge. The distance between the third cutting edge and the preset central axis is greater than the distance between the first cutting edge and the preset central axis.

[0014] According to the embodiment of the present invention, the cutting tool has a second cutting rake angle and a second cutting clearance angle on the third cutting edge. The angle d1 of the second cutting rake angle satisfies: 1°≤d1≤3°, and the angle d2 of the second cutting clearance angle satisfies: 2°≤d2≤4°.

[0015] According to the embodiment of this utility model, the insert knife has a mounting surface on the handle.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0018] Figure 1 This is a schematic diagram of the inserter structure according to an embodiment of the present invention;

[0019] Figure 2 for Figure 1 A schematic diagram of the structure of the inserter from point A;

[0020] Figure 3 for Figure 1 A schematic diagram of a partial structure of the inserter shown;

[0021] Figure 4 This is a schematic diagram of the structure of the first cutting edge according to an embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the structure of the second cutting edge according to an embodiment of the present invention.

[0023] Figure label:

[0024] Tool body 100; preset center axis 101; handle 110; mounting plane 111; neck 120; third cutting edge 121;

[0025] First cutting head 200; First cutting edge 210;

[0026] Second cutting head 300; second cutting edge 301; first secondary cutting edge 302; second secondary cutting edge 303; first end face 310; second end face 320; first side face 330; second side face 340; third side face 350; fourth side face 360; rounded corner structure 370. Detailed Implementation

[0027] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0028] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0030] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0031] The following is for reference. Figures 1 to 5 The inserter in this application is described in detail.

[0032] refer to Figures 1 to 3 According to an embodiment of the present invention, the inserter includes a blade body 100, a first blade head 200, and a second blade head 300. The blade body 100 has a preset central axis 101 extending along a first direction. The first blade head 200 is connected to one end of the blade body 100 and has a first cutting edge 210. The second blade head 300 is connected to the end of the first blade head 200 away from the blade body 100. Along a second direction, the thickness of the second blade head 300 gradually decreases in the first direction. The second direction is inclined relative to the first direction. A second cutting edge 301 is formed at the end of the second blade head 300 with the greatest thickness in the first direction. The first cutting edge 210 and the second cutting edge 301 are distributed along the first direction, and the distance between the first cutting edge 210 and the preset central axis 101 is greater than the distance between the second cutting edge 301 and the preset central axis 101.

[0033] For example, such as Figures 1 to 3As shown, the first direction is the left-right direction, and the second direction is the vertical direction. The inserter includes a blade body 100, a first cutting head 200, and a second cutting head 300. The blade body 100 extends in the left-right direction and has a preset central axis 101 extending in the left-right direction. The first cutting head 200 is connected to the right end of the blade body 100, and the upper end of the first cutting head 200 is provided with a first cutting edge 210. The second cutting head 300 is connected to the right end of the first cutting head 200, and the upper end of the second cutting head 300 is provided with a second cutting edge 301. Along the direction from top to bottom, the thickness of the second cutting head 300 gradually decreases in the left-right direction. The distance between the second cutting edge 301 and the preset central axis 101 is less than the distance between the first cutting edge 210 and the preset central axis 101.

[0034] It is understood that when the inserter of this utility model is working, the inserter moves along the extension direction of the preset central axis 101 to complete the cutting of the workpiece. During the cutting process of the inserter, the second cutting edge 301 on the second cutter head 300 first performs the first cutting operation on the workpiece, and then the first cutting edge 210 on the first cutter head 200 performs the second cutting operation on the workpiece. Since the distance between the second cutting edge 301 and the preset central axis 101 is smaller than the distance between the first cutting edge 210 and the preset central axis 101, the excess material on the workpiece can be removed by the first cutting edge 210 and the second cutting edge 301 respectively. The excess material that the first cutting edge 210 and the second cutting edge 301 need to remove from the workpiece individually can be smaller, and the service life of the first cutting edge 210 and the second cutting edge 301 can be longer, thereby extending the service life of the inserter of this utility model.

[0035] It is understandable that during the machining process of the workpiece by the cutting tool, the second cutting edge 301 needs to come into contact with the workpiece first and perform cutting machining on the workpiece. That is, the second cutting edge 301 on the cutting tool is prone to chipping. In the cutting tool of this utility model, along the direction from top to bottom, the thickness of the second cutting head 300 in the left and right direction gradually decreases, and the second cutting edge 301 is located at the upper end of the second cutting head 300, so that the thickness of the part of the second cutting edge 301 on the second cutting head 300 in the left and right direction can be greater, so as to further enhance the strength of the second cutting edge 301.

[0036] In some embodiments of this utility model, the second cutter head 300 has a first end face 310 and a second end face 320 distributed along a first direction. The first end face 310 is connected to the first cutter head 200 and is perpendicular to the preset central axis 101. The second end face 320 is spaced apart from the preset central axis 101 by a first included angle. The angle a1 of the first included angle satisfies: 84°≤a1≤86°.

[0037] For example, such as Figure 1As shown, the left end of the second cutter head 300 is provided with a first end face 310, and the right end of the second cutter head 300 is provided with a second end face 320. The first end face 310 is connected to the right end of the first cutter head 200 and is located on a vertical plane. The second end face 320 is inclined to the upper right. The second end face 320 and the preset central axis 101 are separated by a first included angle. The angle a1 of the first included angle satisfies: 84°≤a1≤86°.

[0038] It is understandable that, since the first end face 310 is perpendicular to the preset central axis 101, the load on the second cutter head 300 can be evenly transmitted to the first cutter head 200, thereby improving the connection strength between the first cutter head 200 and the second cutter head 300. Since the second end face 320 is spaced at a first included angle from the preset central axis 101, on the one hand, the thickness of the second cutter head 300 gradually decreases in the left-right direction along the top-to-bottom direction, ensuring that the second cutting edge 301 has sufficient strength. On the other hand, the second cutting edge 301 is located at the rightmost end of the insert tool of this utility model, so that when the insert tool of this utility model is working, the second cutting edge 301 can contact and cut the workpiece first.

[0039] In some embodiments of this utility model, reference is made to Figure 2 The second cutting head 300 has a first side surface 330, a second side surface 340, a third side surface 350, and a fourth side surface 360 ​​that are smoothly connected in sequence. The two ends of the first side surface 330, the second side surface 340, the third side surface 350, and the fourth side surface 360 ​​are respectively connected to the first end face 310 and the second end face 320. The second cutting edge 301 is formed at the junction of the first side surface 330 and the second end face 320. The first secondary cutting edge 302 is formed at the junction of the second side surface 340 and the first end face 310. The second secondary cutting edge 303 is formed at the junction of the fourth side surface 360 ​​and the first end face 310. The first secondary cutting edge 302 and the second secondary cutting edge 303 both have a secondary cutting edge rake angle. The angle a2 of the secondary cutting edge rake angle satisfies: 1°≤a2≤3°.

[0040] Understandably, since the second cutting head 300 is provided with a first secondary cutting edge 302 and a second secondary cutting edge 303, when the second cutting edge 301 on the second cutting head 300 is cutting the workpiece, the first secondary cutting edge 302 and the second secondary cutting edge 303 can assist the second cutting edge 301 in cutting the workpiece. The provision of the first secondary cutting edge 302 and the second secondary cutting edge 303 can, on the one hand, increase the cutting efficiency of the second cutting head 300 on the workpiece, and on the other hand, reduce the cutting intensity of the second cutting edge 301 on the workpiece, so as to extend the service life of the second cutting edge 301.

[0041] In some embodiments of this utility model, reference is made to Figure 2 and Figure 3The first side 330, the second side 340, the third side 350 and the fourth side 360 ​​are smoothly connected by a rounded corner structure 370 in sequence. The rounded corner radius r of the rounded corner structure 370 satisfies: 0.22mm≤r≤0.28mm.

[0042] It is understandable that, since the first side 330, the second side 340, the third side 350 and the fourth side 360 ​​are smoothly connected by the rounded corner structure 370 in sequence, when the second cutting head 300 is processing the workpiece, after the second cutting head 300 is subjected to the reaction force of the workpiece, the internal stress of the second cutting head 300 itself can be reduced, so as to reduce the deformation of the second cutting head 300 and thus extend the service life of the second cutting head 300.

[0043] In some embodiments of this utility model, a second included angle is spaced between the second side 340 and the fourth side 360, and the angle a3 of the second included angle satisfies: 19.7°≤a3≤20.3°.

[0044] For example, such as Figure 1 As shown, along the top-to-bottom direction, the size of the second cutter head 300 gradually increases in the front-to-back direction.

[0045] It is understandable that the second cutting edge 301 is formed at the upper end of the second cutting head 300, and the size of the second cutting head 300 gradually increases in the front-back direction from top to bottom, so that the size of the second cutting edge 301 in the front-back direction can be smaller, so that the second cutting edge 301 can extend into the groove of the workpiece to process the groove wall of the workpiece.

[0046] In some embodiments of this utility model, reference is made to Figure 4 The first cutting edge 210 is provided with a first cutting rake angle and a first cutting clearance angle. The angle b1 of the first cutting rake angle satisfies: 1°≤b1≤3°, and the angle b2 of the first cutting clearance angle satisfies: 2°≤b2≤4°.

[0047] In some embodiments of this utility model, reference is made to Figure 5 The second cutting edge 301 is provided with a cutting edge rake angle, a cutting edge first clearance angle and a cutting edge second clearance angle. The angle c1 of the cutting edge rake angle satisfies: 1°≤c1≤3°, the angle c2 of the cutting edge first clearance angle satisfies: 2°≤c2≤4°, and the angle c3 of the cutting edge second clearance angle satisfies: 6°≤c3≤10°.

[0048] In some embodiments of this utility model, the blade body 100 includes a handle portion 110 and a neck portion 120 connected to each other. The handle portion 110 and the neck portion 120 are distributed along a first direction. One end of the neck portion 120 away from the handle portion 110 is connected to a first blade head 200. A third cutting edge 121 is provided at one end of the neck portion 120 near the first blade head 200. The distance between the third cutting edge 121 and the preset central axis 101 is greater than the distance between the first cutting edge 210 and the preset central axis 101.

[0049] For example, such as Figure 1 As shown, the blade body 100 includes a handle portion 110 and a neck portion 120 connected to each other. Both the handle portion 110 and the neck portion 120 extend in the left-right direction. The right end of the handle portion 110 is connected to the left end of the neck portion 120. The first cutting head 200 is connected to the right end of the neck portion 120. A third cutting edge 121 is provided on the right end of the neck portion 120, and the distance between the third cutting edge 121 and the preset central axis 101 is greater than the distance between the first cutting edge 210 and the preset central axis 101.

[0050] It is understood that by providing a third cutting edge 121 on the blade neck 120, the third cutting edge 121 can cut the workpiece, thereby distributing the required cutting allowance on the workpiece to the first cutting edge 210, the second cutting edge 301 and the third cutting edge 121, so as to reduce the cutting allowance required by a single first cutting edge 210, second cutting edge 301 and third cutting edge 121 during the machining of the workpiece by the tool of this utility model.

[0051] Specifically, the third cutting edge 121 is provided with a second cutting rake angle and a second cutting clearance angle. The angle d1 of the second cutting rake angle satisfies: 1°≤d1≤3°, and the angle d2 of the second cutting clearance angle satisfies: 2°≤d2≤4°.

[0052] To facilitate the installation of the insert blade on the blade holder, in some embodiments of this utility model, reference is made to... Figure 1 The handle portion 110 is provided with a mounting surface 111.

[0053] It is understood that when the insert knife of this utility model is installed, the mounting plane 111 of the knife handle 110 can fit against the knife holder so that the insert knife of this utility model can be stably installed on the knife holder.

[0054] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A inserter, characterized in that, include: The blade body has a preset central axis extending along a first direction; A first cutting head is connected to one end of the cutting body, and the first cutting head has a first cutting edge; The second cutting head is connected to the end of the first cutting head away from the cutting body. Along the second direction, the thickness of the second cutting head gradually decreases in the first direction. The second direction is inclined relative to the first direction. The end of the second cutting head with the greatest thickness in the first direction forms a second cutting edge. The first cutting edge and the second cutting edge are distributed along the first direction, and the distance between the first cutting edge and the preset central axis is greater than the distance between the second cutting edge and the preset central axis.

2. The inserter according to claim 1, characterized in that, The second cutter head has a first end face and a second end face distributed along the first direction. The first end face is connected to the first cutter head and is perpendicular to the preset central axis. The second end face is spaced at a first included angle with the preset central axis. The angle a1 of the first included angle satisfies: 84°≤a1≤86°.

3. A inserter according to claim 2, characterized in that, The second cutting head has a first side, a second side, a third side, and a fourth side that are smoothly connected in sequence. The two ends of the first side, the second side, the third side, and the fourth side are respectively connected to the first end face and the second end face. The second cutting edge is formed at the junction of the first side and the second end face. The first secondary cutting edge is formed at the junction of the second side and the first end face. The second secondary cutting edge is formed at the junction of the fourth side and the first end face. Both the first secondary cutting edge and the second secondary cutting edge have a secondary cutting edge rake angle. The angle a2 of the secondary cutting edge rake angle satisfies: 1°≤a2≤3°.

4. A inserter according to claim 3, characterized in that, The first side, the second side, the third side, and the fourth side are smoothly connected in sequence by a rounded corner structure, and the rounded corner radius r of the rounded corner structure satisfies: 0.22mm≤r≤0.28mm.

5. A inserter according to claim 3, characterized in that, There is a second included angle between the second side and the fourth side, and the angle a3 of the second included angle satisfies: 19.7°≤a3≤20.3°.

6. A inserter according to claim 1, characterized in that, The first cutting edge is provided with a first cutting rake angle and a first cutting clearance angle. The angle b1 of the first cutting rake angle satisfies: 1°≤b1≤3°, and the angle b2 of the first cutting clearance angle satisfies: 2°≤b2≤4°.

7. A inserter according to claim 1, characterized in that, The second cutting edge is provided with a cutting edge rake angle, a cutting edge first clearance angle and a cutting edge second clearance angle. The angle c1 of the cutting edge rake angle satisfies: 1°≤c1≤3°, the angle c2 of the cutting edge first clearance angle satisfies: 2°≤c2≤4°, and the angle c3 of the cutting edge second clearance angle satisfies: 6°≤c3≤10°.

8. A inserter according to claim 1, characterized in that, The blade body includes a handle portion and a neck portion connected together. The handle portion and the neck portion are distributed along the first direction. One end of the neck portion away from the handle portion is connected to the first blade head. A third cutting edge is provided at one end of the neck portion near the first blade head. The distance between the third cutting edge and the preset central axis is greater than the distance between the first cutting edge and the preset central axis.

9. A inserter according to claim 8, characterized in that, The third cutting edge is provided with a second cutting rake angle and a second cutting clearance angle. The angle d1 of the second cutting rake angle satisfies: 1°≤d1≤3°, and the angle d2 of the second cutting clearance angle satisfies: 2°≤d2≤4°.

10. A inserter according to claim 8, characterized in that, The handle portion is provided with a mounting surface.

Images