CN221087376U - Profiling milling cutter - Google Patents
Profiling milling cutter Download PDFInfo
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- CN221087376U CN221087376U CN202323162812.XU CN202323162812U CN221087376U CN 221087376 U CN221087376 U CN 221087376U CN 202323162812 U CN202323162812 U CN 202323162812U CN 221087376 U CN221087376 U CN 221087376U
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- cutting blade
- cutting insert
- mounting groove
- cutting
- blade
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- 238000003801 milling Methods 0.000 title claims abstract description 30
- 238000005520 cutting process Methods 0.000 claims abstract description 75
- 238000003754 machining Methods 0.000 abstract description 9
- 230000001771 impaired effect Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
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- Milling Processes (AREA)
Abstract
The utility model belongs to the technical field of cutting machining tools, and relates to a profiling milling tool, which comprises a tool main body, wherein a cutting blade for milling is arranged at the bottom of the tool main body, a mounting groove for mounting the cutting blade is formed in the bottom of the tool main body, a positioning boss for limiting the rotation of the cutting blade is arranged in the mounting groove, a positioning groove for clamping the positioning boss is formed in the bottom of the cutting blade, a blade inner hole is formed in the top end of the cutting blade, and a fixing screw for fixing the cutting blade is arranged in the blade inner hole; utilize location boss, constant head tank, butt plane, the design of stopping changeing plane, mounting groove and cutting blade, it is crossing to make through up end and symmetrical stopping changeing plane, forms the anti-rotation structure of mounting groove, and this kind of anti-rotation structure becomes triangle-shaped plane, through utilizing triangle-shaped's stability principle, can effectively avoid appearing impaired and the poor problem of machining precision because of cutting blade self pivoted condition, lead to cutting blade.
Description
Technical Field
The utility model belongs to the technical field of cutting machining tools, and particularly relates to a profiling milling tool.
Background
In profile milling, the processing characteristics are typically: small cutting depth, large feed and high cutting rate. And requires a strong feed capability and accessibility of the tool. The profile milling insert is usually designed to be circular. Typically, the cutting insert may be secured in a mounting pocket of the tool body using clamping screws or other clamping mechanisms, with a support surface of the mounting pocket for supporting the cutting insert during machining in a manner that prevents axial and radial movement of the cutting insert within the mounting pocket. However, during machining, the cutting insert is also subjected to a torque rotating about its central axis. The cutting insert may rotate in a clockwise or counterclockwise direction in the mounting slot depending on the direction of the cutting force. The circular cutting blade is easy to rotate and vibrate in the machining process because of no other auxiliary positioning devices, so that the stability and the service life of the cutter are reduced, and the machining precision of a workpiece is influenced. Therefore, in profile milling of round cutting inserts, it is highly desirable to add anti-rotation means during clamping of the insert. The prior art cutter anti-rotation device has the defects that the structure is complex, the curved surface is more, the installation contact surface is smaller, and the anti-rotation effect is not ideal when the cutter is processed at high speed; in addition, when the CNC processes the blade mounting groove of the main body, the number of steps is large, and the processing cost is increased.
Disclosure of utility model
In order to solve the problems existing in the prior art, the main purpose of the utility model is to provide a profiling milling cutter.
In order to solve the technical problems, according to one aspect of the present utility model, the following technical solutions are provided:
The utility model provides a profiling milling cutter, includes the cutter main part, the bottom of cutter main part is provided with the cutting insert that is used for milling, the mounting groove that is used for installing cutting insert has been seted up to the bottom of cutter main part, the inside of mounting groove is provided with the location boss that is used for restricting cutting insert pivoted, the positioning groove that is used for joint location boss has been seted up to cutting insert's bottom, the blade hole has been seted up on cutting insert's top, the inside of blade hole is provided with the set screw that is used for fixed cutting insert.
As a preferred embodiment of the profile milling tool according to the utility model, wherein: the mounting groove comprises a bottom supporting surface and a side supporting surface, a threaded hole is formed in the top end of the bottom supporting surface, and the fixing screw is connected with the threaded hole in a threaded penetrating mode.
As a preferred embodiment of the profile milling tool according to the utility model, wherein: the positioning boss comprises an upper end face and a rotation stopping plane which is symmetrically arranged, the upper end face is fixedly connected with the side supporting face, the upper end face is higher than the bottom supporting face, and the top end and the bottom end of the rotation stopping plane are respectively fixedly connected with the upper end face and the bottom supporting face.
As a preferred embodiment of the profile milling tool according to the utility model, wherein: the included angle between the horizontally opposite sides of the rotation stopping planes is a first included angle, and the first included angle is larger than 0 degrees and smaller than 180 degrees.
As a preferred embodiment of the profile milling tool according to the utility model, wherein: the cutting blade is round platform shape, the cutting blade includes blade upper surface, side surface and bottom surface, the locating groove is seted up at the junction of side surface and bottom surface.
As a preferred embodiment of the profile milling tool according to the utility model, wherein: the positioning groove comprises a top end face and symmetrically arranged abutting planes, and the top ends of the abutting planes are fixedly connected with the bottom ends of the top end face.
As a preferred embodiment of the profile milling tool according to the utility model, wherein: the included angles between the horizontally opposite sides of the abutting planes are second included angles, and the second included angles are larger than 0 degrees and smaller than 180 degrees.
The beneficial effects of the utility model are as follows:
The utility model provides a profiling milling cutter, which comprises a cutter body, wherein a cutting blade for milling is arranged at the bottom of the cutter body, a mounting groove for mounting the cutting blade is formed in the bottom of the cutter body, a positioning boss for limiting the rotation of the cutting blade is arranged in the mounting groove, a positioning groove for clamping the positioning boss is formed in the bottom of the cutting blade, a blade inner hole is formed in the top end of the cutting blade, and a fixing screw for fixing the cutting blade is arranged in the blade inner hole; utilize location boss, constant head tank, butt plane, the design of stopping changeing plane, mounting groove and cutting blade, it is crossing to make through up end and symmetrical stopping changeing plane, forms the anti-rotation structure of mounting groove, and this kind of anti-rotation structure becomes triangle-shaped plane, through utilizing triangle-shaped's stability principle, can effectively avoid appearing impaired and the poor problem of machining precision because of cutting blade self pivoted condition, lead to cutting blade.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view of the structure of a profile milling tool according to the present utility model.
Fig. 2 is a schematic structural view of the installation groove of the present utility model.
Fig. 3 is a schematic view of the structure of the cutting insert of the present utility model.
Wherein, 1, the cutter main body; 2. a cutting insert; 3. the upper surface of the blade; 4. a side surface; 5. a bottom surface; 6. a positioning groove; 7. abutting against the plane; 8. a mounting groove; 9. a side support surface; 10. a bottom support surface; 11. positioning the boss; 12. a rotation stopping plane; 13. a blade inner bore; 14. a fixing screw; 15. and (3) a threaded hole.
The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description will be made clearly and fully with reference to the technical solutions in the embodiments, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model provides a profiling milling cutter as shown in figures 1-3, which comprises a cutter body 1, wherein a cutting blade 2 for milling is arranged at the bottom of the cutter body 1, a mounting groove 8 for mounting the cutting blade 2 is formed at the bottom of the cutter body 1, a positioning boss 11 for limiting the rotation of the cutting blade 2 is arranged in the mounting groove 8, a positioning groove 6 for clamping the positioning boss 11 is formed at the bottom of the cutting blade 2, a blade inner hole 13 is formed at the top end of the cutting blade 2, and a fixing screw 14 for fixing the cutting blade 2 is arranged in the blade inner hole 13.
Specifically, the bottom of the tool body 1 is provided with a plurality of cutting inserts 2, and the number of the mounting grooves 8 corresponds to the number of the cutting inserts 2 one by one.
Specifically, the cutting insert 2 is round table shape, the cutting insert 2 includes blade upper surface 3, side surface 4 and bottom surface 5, positioning groove 6 sets up the junction at side surface 4 and bottom surface 5, positioning groove 6 includes terminal surface and the butt plane 7 that the symmetry set up, the top of butt plane 7 and the bottom fixed connection of terminal surface, the contained angle is the second contained angle between a plurality of butt planes 7 horizontal opposite sides, the second contained angle is greater than 0 and less than 180, positioning boss 11 includes up end and the rotation plane 12 that the symmetry set up, up end and side holding surface 9 fixed connection, the up end is higher than bottom holding surface 10, the top and the bottom of rotation plane 12 respectively with up end and bottom holding surface 10 fixed connection, the contained angle is first contained angle between a plurality of rotation planes 12 horizontal opposite sides, first contained angle is greater than 0 and less than 180.
Further, the size of the upper surface 3 of the blade is larger than the size of the bottom surface 5, the joint of the upper surface 3 of the blade and the side surface 4 is the cutting edge of the cutting blade 2, the second included angle is the same as the first included angle, and is larger than 0 degrees and smaller than 180 degrees, the size of the positioning groove 6 is 1.02 times that of the positioning boss 11, the shape of the positioning groove 6 is the same as that of the positioning boss 11, the positioning boss 11 is an anti-rotation structure inside the mounting groove 8, and the two vertical planes of the upper end surface and the anti-rotation plane 12 are intersected, so that the processing steps of CNC (computerized numerical control) for manufacturing the cutter body 1 can be reduced, the manufacturing time is saved, the cost for manufacturing the cutter body 1 can be further reduced, and the anti-rotation structure composed of a plurality of curved surfaces is superior to that in the prior art.
Specifically, the mounting groove 8 comprises a bottom supporting surface 10 and a side supporting surface 9, a threaded hole 15 is formed in the top end of the bottom supporting surface 10, and a fixing screw 14 is connected with the threaded hole 15 in a threaded penetrating mode.
Further, the size of the mounting groove 8 is 1.02 times the size of the cutting insert 2, the side support surface 9 is adapted to snugly contact the side surface 4, and the threaded hole 15 is threaded with the bottom of the set screw 14.
Specifically, when the cutting insert 2 and the tool body 1 are mounted, the fixing screw 14 is inserted into the insert inner hole 13, the bottom of the fixing screw 14 is connected with the threaded hole 15 in a threaded insertion manner, the tool body 1 and the cutting insert 2 are fixedly mounted, the fixing screw 14 and the side supporting surface 9 give clamping force to the cutting insert 2, in the process, the bottom surface 5 is contacted and attached to the bottom supporting surface 10, the side surface 4 of the cutting insert 2 is contacted and attached to the side supporting surface 9 of the mounting groove 8, at the moment, the bottom supporting surface 10 gives supporting force to the cutting insert 2, the axial and radial movement of the cutting insert 2 in the mounting groove 8 is prevented by the clamping force and the supporting force, the rotation stopping plane 12 of the positioning boss 11 is contacted with the abutting plane 7 of the positioning groove 6, the two rotation stopping planes 12 respectively give the two cutting blades 2 resistance to rotate clockwise and anticlockwise around the central axis of the cutting blades, when the cutting blades 2 rotate clockwise or anticlockwise, the abutting planes 7 of the positioning grooves 6 are contacted with the corresponding rotation stopping planes 12 of the abutting planes 7, as the rotation stopping planes 12 and the abutting planes 7 are in plane contact with each other, at least more than two contact points are formed, the inner holes 13 of the blades are in fastening contact with the cutting blades 2 to form a central axis point, and three points form a stable triangular resistance plane, so that the self-rotation motion of the cutting blades 2 during cutting can be stably and efficiently prevented through the rotation preventing structure, and the problems of damage and poor machining precision of the cutting blades caused by the condition that the cutting blades rotate at high speed and vibrate.
The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the content of the present utility model or direct/indirect application in other related technical fields are included in the scope of the present utility model.
Claims (7)
1. The utility model provides a profiling milling cutter, its characterized in that, including cutter main part (1), the bottom of cutter main part (1) is provided with cutting insert (2) that are used for milling, mounting groove (8) that are used for installing cutting insert (2) are seted up to the bottom of cutter main part (1), the inside of mounting groove (8) is provided with and is used for restricting cutting insert (2) pivoted location boss (11), positioning groove (6) that are used for joint location boss (11) are seted up to the bottom of cutting insert (2), insert hole (13) have been seted up on the top of cutting insert (2), the inside of insert hole (13) is provided with set screw (14) that are used for fixed cutting insert (2).
2. Profile milling tool according to claim 1, characterized in that the mounting groove (8) comprises a bottom support surface (10) and a side support surface (9), a threaded hole (15) is provided at the top end of the bottom support surface (10), and the fixing screw (14) is threaded with the threaded hole (15).
3. A profiling milling cutter according to claim 2, characterized in that the positioning boss (11) comprises an upper end surface and symmetrically arranged rotation stopping planes (12), the upper end surface is fixedly connected with the side supporting surface (9), the upper end surface is higher than the bottom supporting surface (10), and the top end and the bottom end of the rotation stopping planes (12) are fixedly connected with the upper end surface and the bottom supporting surface (10) respectively.
4. A profile milling tool according to claim 3, characterized in that the angle between the horizontally opposite sides of the plurality of anti-rotation planes (12) is a first angle, said first angle being greater than 0 ° and less than 180 °.
5. A profiling milling cutter according to claim 1, characterized in that the cutting insert (2) is of a truncated cone shape, the cutting insert (2) comprising an insert upper surface (3), a side surface (4) and a bottom surface (5), the positioning groove (6) being open at the intersection of the side surface (4) and the bottom surface (5).
6. A profiling milling cutter according to claim 5, characterized in that the positioning groove (6) comprises a top end face and symmetrically arranged abutment planes (7), the top end of the abutment planes (7) being fixedly connected with the bottom end of the top end face.
7. A profile milling tool according to claim 6, characterized in that the angle between the horizontally opposite sides of the abutment planes (7) is a second angle, said second angle being greater than 0 ° and less than 180 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323162812.XU CN221087376U (en) | 2023-11-23 | 2023-11-23 | Profiling milling cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323162812.XU CN221087376U (en) | 2023-11-23 | 2023-11-23 | Profiling milling cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221087376U true CN221087376U (en) | 2024-06-07 |
Family
ID=91326213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323162812.XU Active CN221087376U (en) | 2023-11-23 | 2023-11-23 | Profiling milling cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221087376U (en) |
-
2023
- 2023-11-23 CN CN202323162812.XU patent/CN221087376U/en active Active
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| GR01 | Patent grant |