CN220093157U - Combined cutter integrating plane milling and C-shaped three-dimensional surface milling - Google Patents
Combined cutter integrating plane milling and C-shaped three-dimensional surface milling Download PDFInfo
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- CN220093157U CN220093157U CN202321399051.7U CN202321399051U CN220093157U CN 220093157 U CN220093157 U CN 220093157U CN 202321399051 U CN202321399051 U CN 202321399051U CN 220093157 U CN220093157 U CN 220093157U
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- 238000003801 milling Methods 0.000 title claims abstract description 42
- 230000002093 peripheral effect Effects 0.000 claims abstract description 41
- 238000005520 cutting process Methods 0.000 claims abstract description 33
- 239000002131 composite material Substances 0.000 claims abstract description 11
- 150000001875 compounds Chemical class 0.000 claims 1
- 238000003754 machining Methods 0.000 abstract description 11
- 238000012545 processing Methods 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000005299 abrasion Methods 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The utility model relates to a composite cutter integrating plane milling and C-shaped three-dimensional surface milling, which comprises a cutting part and a handle part, wherein three chip grooves extending spirally are arranged on the cutting part along the length direction of a cutter body, peripheral edges of the cutting part are formed between adjacent chip grooves, and an inward concave arc-shaped edge is arranged in the middle of each peripheral edge; the peripheral edge rake angle of the peripheral edge is 27 ° to 29 °. According to the utility model, the concave arc-shaped blade is arranged on the peripheral blade, so that the C-shaped three-dimensional surface contour processing of a product is facilitated, the sharpness and rigidity of the peripheral blade are ensured due to the arrangement of the angle of the peripheral blade, and the processing efficiency of the contour surface is improved; meanwhile, the angle of the bottom edge is set, so that abrasion of the bottom edge is reduced, the service life of the cutter is prolonged, and plane milling is facilitated; realize the dual-purpose of a sword, improve production machining efficiency.
Description
Technical Field
The utility model relates to the technical field of milling cutters, in particular to a composite cutter integrating plane milling and C-shaped three-dimensional surface milling.
Background
The milling cutter is mainly used for machining planes, step surfaces, grooves and the like on a workpiece. In machining, for example, CNC machining, a milling cutter is more often used for cutting workpieces made of materials such as metal, plastic and the like due to the advantages of stable cutting and the like.
For example, the mobile phone shell is processed by using a face milling cutter to process an inner whole groove of the mobile phone shell, and then using a C-shaped profile cutter to process the side wall into a three-dimensional profile similar to a C shape. The existing two ways of processing are adopted: after the machining of the face milling cutter is finished, the C-shaped profile cutter is replaced, and the mode leads to frequent up-down positioning of the jig on the mobile phone shell, so that the production efficiency is low; the other is to use two machine tools to fix the face milling cutter and the C-shaped profile cutter respectively, and the mobile phone shell enters the C-shaped three-dimensional profile processing after finishing face milling, but the mode does not cause large equipment investment and higher cutter cost.
Disclosure of Invention
In order to overcome the defects, the utility model provides an end mill which can carry out both C-shaped three-dimensional contour machining and plane milling machining.
The technical scheme adopted by the utility model for solving the technical problems is as follows: the composite cutter integrating plane milling and C-shaped three-dimensional surface milling comprises a cutting part and a handle part, wherein three chip grooves extending spirally are arranged on the cutting part along the length direction of a cutter body, peripheral edges are formed between adjacent chip grooves, and an inward concave arc-shaped edge is arranged in the middle of each peripheral edge; the angle of the groove rake angle of the peripheral edge is 27 DEG to 29 DEG, and the front end of the cutting portion has a bottom edge.
As a further development of the utility model, the peripheral edge is further provided with two peripheral edge relief angles, the angle of the first peripheral edge relief angle being 14 ° to 16 °, and the angle of the second peripheral edge relief angle being 28 ° to 32 °.
As a further improvement of the utility model, the angle of the first relief angle Zhou Rendi is 15 degrees, and the angle of the second relief angle Zhou Rendi is 30 degrees.
As a further improvement of the utility model, the bottom edge is provided with two end tooth relief angles, the first end tooth relief angle is close to the periphery of the cutting part, and the angle is 11-13 degrees; the second relief angle of the end tooth is approximately 23 DEG to 27 DEG near the center of the cutting portion.
As a further development of the utility model, the angle of the first relief angle of the end tooth is 12 ° and the angle of the second relief angle of the end tooth is 25 °.
As a further development of the utility model, the angle of the end tooth rake of the bottom edge is 7 ° to 9 °.
As a further improvement of the present utility model, the core diameter of the cutting portion is 0.4 times the outer diameter of the shank portion.
The beneficial effects of the utility model are as follows: the concave arc-shaped edge is arranged on the peripheral edge, so that the C-shaped three-dimensional surface contour processing of a product is facilitated, the sharpness and rigidity of the peripheral edge are ensured due to the arrangement of the angle of the peripheral edge, and the processing efficiency of the contour surface is improved; meanwhile, the angle of the bottom edge is set, so that abrasion of the bottom edge is reduced, the service life of the cutter is prolonged, and plane milling is facilitated; realize the dual-purpose of a sword, improve production machining efficiency.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is an enlarged view of the bottom edge of the present utility model;
FIG. 3 is a schematic view of the rake angle of the peripheral edge of the present utility model;
FIG. 4 is a schematic cross-sectional view of a cutting edge of the present utility model;
FIG. 5 is a schematic illustration of the present utility model performing face milling;
fig. 6 is a schematic diagram of the present utility model for performing a specific cambered surface process.
The following description is made with reference to the accompanying drawings:
1. a cutting portion; 2. a handle; 3. a chip removal groove; 4. a peripheral edge; 41. an arc-shaped blade; a1, front angles of peripheral edges; a2, zhou Rendi, a rear corner; a3, zhou Rendi, two rear corners; 5. a bottom edge; b1, a first rear angle of the end tooth; b2, end teeth second rear angles; b3, the front angle of the end teeth.
Detailed Description
A preferred embodiment of the present utility model will be described in detail with reference to the accompanying drawings.
Referring to fig. 1 to 6, the present utility model provides an embodiment of a composite tool integrating plane milling and C-shaped solid surface milling, wherein the end milling cutter is made of hard materials such as cemented carbide, and has a cylindrical shape as a whole, and comprises a cutting portion 1 and a handle portion 2, wherein the handle portion 2 is connected with a main shaft of a machine tool, and the main shaft of the machine tool can drive the end milling cutter to rotate around a central axis thereof to mill a workpiece. Three chip removal grooves 3 extending spirally are arranged on the cutting part 1 along the length direction of the cutter body for chip removal. The peripheral edge 4 of the cutting part 1 is formed between the adjacent chip grooves 3, the middle part on the peripheral edge 4 is provided with an inward concave arc-shaped edge 41, and the shape of the arc-shaped edge 41 is consistent with the contour of a curved surface required to be molded by a product. The angle of the peripheral edge rake angle A1 of the peripheral edge 4 is 27 ° to 29 °. Preferably, the angle of the front angle A1 of the peripheral edge is 28 degrees, and the design of the angle not only ensures the sharpness of the cutting edge and is convenient for chip removal and difficult for abrasion; but also can ensure the strength of the cutting edge, and is not easy to vibrate, roll and collapse during processing. Meanwhile, the arc-shaped blade formed by the concave arc-shaped is arranged on the peripheral blade, the special contour of the product can be processed, frequent replacement of cutters and increase of production equipment are not needed, and the production efficiency is improved. In addition, the three-blade design is adopted, so that the integral rigidity of the end mill is ensured, the chip removal amount in the chip removal process is increased, the residence time of chips in the chip removal groove is reduced, and the cutting heat is taken away as soon as possible, so that the service life of the cutter is prolonged. The cutting portion 1 has a bottom edge 5 at its front end for performing face milling.
Further, two peripheral edge relief angles are further arranged on the peripheral edge 4, the angle of the peripheral edge first relief angle A2 is 14-16 degrees, and the angle of the peripheral edge second relief angle A3 is 28-32 degrees. The angle of the peripheral edge first relief angle A2 is 15 ° and the angle of the peripheral edge first relief angle A2 is 30 °. The special angle design of Zhou Rendi-relief angle A2 and Zhou Rendi-relief angle A2 is convenient for improving the cutting capability of the cutter, so that the surface smoothness of the machined special profile is high, the friction between the cutter and the surface of a product is reduced, and the machining stability is good.
Further, the bottom edge 5 at the front end of the cutting part 1 is provided with two end tooth relief angles, and the end tooth first relief angle B1 is close to the periphery of the cutting part 1 and is 11-13 degrees; the second relief angle B2 of the end tooth is located near the centre of the cutting portion 1 and is at an angle of 23 ° to 27 °. The angle of the end tooth rake angle B3 of the bottom edge 5 is 7 ° to 9 °. Preferably, the angle of the first relief angle B1 of the end tooth is 12 degrees, the angle of the second relief angle B2 of the end tooth is 25 degrees, and the angle of the front angle B3 of the end tooth is 8 degrees, so that the cutting capability of the bottom edge is improved.
Further, the core diameter d (or referred to as core thickness) of the cutting portion 1 is 0.4 times the outer diameter of the shank 2. If the diameter of the shank 2 is 12.0mm, the core diameter of the cutting portion 1 is 4.8. The arrangement ensures the integral rigidity of the cutter during plane milling or specific contour machining, is not easy to break, and prolongs the service life of the cutter.
In summary, according to the composite cutter integrating plane milling and C-shaped three-dimensional surface milling, the concave arc-shaped edge is arranged on the peripheral edge, so that the C-shaped three-dimensional surface contour processing of a product is facilitated, the sharpness and the rigidity of the peripheral edge are ensured, and the contour processing efficiency is improved; meanwhile, the angle of the bottom edge is set, so that abrasion of the bottom edge is reduced, the service life of the cutter is prolonged, and plane milling is facilitated; realize the dual-purpose of a sword, improve production machining efficiency.
In the above description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The foregoing description is only of a preferred embodiment of the utility model, which can be practiced in many other ways than as described herein, so that the utility model is not limited to the specific implementations disclosed above. While the foregoing disclosure has been described with reference to certain embodiments, it will be understood by those skilled in the art that various changes and modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model. Any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present utility model without departing from the technical solution of the present utility model still falls within the scope of the technical solution of the present utility model.
Claims (7)
1. The utility model provides a collect plane mill and compound cutter of C shape three-dimensional face mill in an organic whole, includes cutting portion (1) and stalk portion (2), its characterized in that: three spiral extended chip grooves (3) are formed in the cutting part (1) along the length direction of the cutter body, peripheral edges (4) are formed between adjacent chip grooves (3), and an inward concave arc-shaped edge (41) is formed in the middle of each peripheral edge (4); the angle of the groove rake angle (A1) of the peripheral edge (4) is 27 DEG to 29 DEG, and the front end of the cutting part (1) is provided with a bottom edge (5).
2. The composite cutter integrating plane milling and C-shaped three-dimensional surface milling into a whole according to claim 1, wherein: two peripheral edge relief angles are further arranged on the peripheral edge (4), the angle of a first peripheral edge relief angle (A2) is 14-16 degrees, and the angle of a second peripheral edge relief angle (A3) is 28-32 degrees.
3. The composite cutter integrating plane milling and C-shaped three-dimensional surface milling as claimed in claim 2, wherein: the angle of the first relief angle (A2) of Zhou Rendi is 15 degrees, and the angle of the second relief angle (A3) of Zhou Rendi is 30 degrees.
4. The composite cutter integrating plane milling and C-shaped three-dimensional surface milling into a whole according to claim 1, wherein: two end tooth relief angles are arranged on the bottom edge (5), and the first end tooth relief angle (B1) is close to the periphery of the cutting part (1) and is 11-13 degrees; the second relief angle (B2) of the end tooth is located near the centre of the cutting portion (1) and is at an angle of 23 ° to 27 °.
5. The composite cutter integrating plane milling and C-shaped three-dimensional surface milling into a whole according to claim 4, wherein: the angle of the first back angle (B1) of the end tooth is 12 degrees, and the angle of the second back angle (B2) of the end tooth is 25 degrees.
6. The composite cutter integrating plane milling and C-shaped three-dimensional surface milling into a whole according to claim 5, wherein: the angle of the end tooth rake angle (B3) of the bottom edge (5) is 7-9 degrees.
7. The composite cutter integrating plane milling and C-shaped three-dimensional surface milling into a whole according to claim 1, wherein: the core diameter of the cutting part (1) is 0.4 times the outer diameter of the shank part (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321399051.7U CN220093157U (en) | 2023-06-02 | 2023-06-02 | Combined cutter integrating plane milling and C-shaped three-dimensional surface milling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321399051.7U CN220093157U (en) | 2023-06-02 | 2023-06-02 | Combined cutter integrating plane milling and C-shaped three-dimensional surface milling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220093157U true CN220093157U (en) | 2023-11-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321399051.7U Active CN220093157U (en) | 2023-06-02 | 2023-06-02 | Combined cutter integrating plane milling and C-shaped three-dimensional surface milling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220093157U (en) |
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2023
- 2023-06-02 CN CN202321399051.7U patent/CN220093157U/en active Active
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