CN219074408U - Disposable cutter - Google Patents
Disposable cutter Download PDFInfo
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- CN219074408U CN219074408U CN202223047481.0U CN202223047481U CN219074408U CN 219074408 U CN219074408 U CN 219074408U CN 202223047481 U CN202223047481 U CN 202223047481U CN 219074408 U CN219074408 U CN 219074408U
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- cutter
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Abstract
The utility model discloses a disposable cutter, which relates to the field of machine tool cutters, and the technical scheme of the utility model comprises a cutter bar, a cutter head and a connecting piece; the cutter bar is provided with an inner hole, and the inner hole comprises a connecting section and an anastomotic section; the connecting piece comprises a connecting part and a first anastomotic part, the connecting part is detachably connected with the connecting section, and a first anastomotic surface is arranged on the side surface of the first anastomotic part; the cutter head comprises a cutting edge part and a second anastomotic part, the cutting edge part is positioned outside the inner hole, and a second anastomotic surface is arranged on the side surface of the second anastomotic part; the first anastomotic surface and the second anastomotic surface are mutually matched, and the first anastomotic surface and the second anastomotic surface are respectively provided with a hooking surface for limiting axial separation. The tool bit can be very simple and convenient to replace and install, the processing difficulty of the fixing structure of the tool bit is low, the component force lateral action of the tool bit on the connecting piece can be effectively avoided by adopting the hooking surface perpendicular to the mandrel, and the service life of the structures such as the tool bit can be well prolonged.
Description
Technical Field
The utility model relates to the field of machine tool cutters, in particular to a disposable cutter.
Background
Among the machine tools, there is a throw-away tool in which a tool bit and a tool holder are engaged by screw, and the tool bit is removed from the tool holder after the tool bit is worn, for example, a replaceable tool bit milling cutter disclosed in patent document CN103357942a, wherein the tool bit and the tool holder are engaged by screw, that is, screw threads are required to be formed on the tool bit, the tool bit is generally a rare alloy having a high hardness, and the difficulty of the screw thread forming process on such a rare alloy is high because the screw thread structure is relatively complicated.
Disclosure of Invention
In order to solve the technical problems, the utility model provides the disposable cutter, the cutter head can be replaced and installed very simply and conveniently, the processing difficulty of the fixing structure of the cutter head is low, the component force of the cutter head can be effectively prevented from acting on the connecting piece in the lateral direction by adopting the hooking surface perpendicular to the mandrel, and the service life of the structures such as the cutter head can be prolonged well.
The technical scheme adopted for solving the technical problems is as follows: the disposable cutter comprises a cutter bar, a cutter head and a connecting piece;
the cutter bar is provided with an inner hole, and the inner hole comprises a connecting section and an anastomotic section;
the connecting piece comprises a connecting part and a first anastomotic part, the connecting part is detachably connected with the connecting section, the first anastomotic part is adapted to the anastomotic section, and a first anastomotic surface is arranged on the side surface of the first anastomotic part;
the cutter head comprises a cutting edge part and a second anastomotic part, the cutting edge part is positioned outside the inner hole, the second anastomotic part is adapted to the anastomotic segment, and a second anastomotic surface is arranged on the side surface of the second anastomotic part;
the first anastomotic surface and the second anastomotic surface are mutually matched, and the first anastomotic surface and the second anastomotic surface are respectively provided with a hooking surface for limiting axial separation.
When the tool bit is used, the first anastomotic part and the second anastomotic part are matched all the time, the connecting part is connected with the connecting section, the tool bit can be fixed, and when the tool bit is disassembled, the connecting part is rotated to separate the connecting part from the connecting section, and the first anastomotic part and the second anastomotic part slide out of the inner hole, so that the first anastomotic part and the second anastomotic part can be separated.
Because the first anastomotic part and the second anastomotic part are positioned on the anastomotic section and the side surfaces of the first anastomotic part and the second anastomotic part are matched, the first anastomotic part and the second anastomotic part cannot be radially separated when the anastomotic section is formed, and the first anastomotic surface and the second anastomotic surface are respectively provided with a hook surface for limiting axial separation, so that the first anastomotic part and the second anastomotic part cannot be axially separated, and the first anastomotic part and the second anastomotic part cannot be separated from any direction when the first anastomotic part and the second anastomotic part are positioned on the anastomotic section, thereby realizing the aim of fixing the cutter head through the connecting piece.
The tool bit can be very simple to replace to this scheme, only needs set up a hook face at the tool bit and can regard as connection structure, and the processing degree of difficulty is very low.
Preferably, the hooking surface is perpendicular to the axis of the inner bore. So as to concentrate the interaction force between the tool bit and the connecting piece in the axial direction, avoid generating oblique component force between the tool bit and the tool bar when using the tool bit, effectively avoid component force to damage the connecting structure.
Preferably, the first anastomotic surface and the second anastomotic surface are matched in a concave-convex way. So as to improve the tightness of the fit of the two.
Preferably, the first anastomotic surface and the second anastomotic surface are respectively provided with a groove and a bulge which are matched with each other, and the hooking surface is positioned on the boundary side surface of the groove and the bulge. The first anastomotic surface and the second anastomotic surface are matched through the grooves and the bulges, and the matched stability and the compactedness are better.
Preferably, the connecting section is a conical hole, one end of the hole opening of the conical hole is larger in diameter, and the outer side face of the first anastomotic part is a conical column matched with the connecting section. So that the conical hole and the conical column can be matched in a quick centering way when the connecting piece pulls the tool bit to move towards the inner hole, and the tool bit is locked quickly.
Preferably, the second anastomosis is located in a tapered column adapted to the connecting section. So that the connecting piece can be quickly centered in the inner hole, and the stability of the connection of the cutter head is improved.
Preferably, a screwing joint surface is arranged between the blade part and the second anastomotic part. So that the connecting piece is driven to rotate together by the spanner to screw the joint surface to catch the cutting edge.
Preferably, the connection section is provided with an internal thread, and the connection part is provided with an external thread adapted to the internal thread. The connecting section and the connecting part can be quickly and conveniently disassembled and assembled through threaded fit.
Preferably, the cutter bar, the cutter head and the connecting piece are respectively axially provided with cooling holes. The cooling liquid is supplied to the cutter head through the cooling hole.
The utility model has the beneficial effects that:
according to the scheme, the tool bit can be replaced and installed very simply and conveniently, the fixing structure of the tool bit is simple, the processing difficulty is much lower, the component force lateral action of the tool bit can be effectively avoided by adopting the hooking surface perpendicular to the mandrel to act on the connecting piece, and the service life of the tool bit and other structures can be well prolonged.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings required for the description of the embodiments will be briefly described, and it is obvious that the drawings in the following description are only one of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of an embodiment of the present utility model;
the cutter bar 1, the connecting section 2, the anastomosis section 3, the inner hole 4, the connecting part 5, the first anastomosis part 6, the connecting piece 7, the second anastomosis part 8, the cutting edge part 9, the screwing joint surface 10, the cutter head 11, the first anastomosis surface 12, the second anastomosis surface 13, the groove 14, the bulge 15, the hooking surface 16 and the cooling hole 17.
Detailed Description
The present utility model will be further described in detail with reference to the drawings and examples, which are only for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model.
Examples
As shown in fig. 1, the throw-away tool includes a cutter bar 1, a cutter head 11, and a connecting member 7; the cutter bar 1 is provided with an inner hole 4, and the inner hole 4 comprises a connecting section 2 and an anastomotic section 3; the connecting piece 7 comprises a connecting part 5 and a first anastomotic part 6, the connecting part 5 is detachably connected with the connecting section 2, the first anastomotic part 6 is adapted to the anastomotic section 3, and a first anastomotic surface 12 is arranged on the side surface of the first anastomotic part 6; the cutter head 11 comprises a cutting edge part 9 and a second anastomotic part 8, the cutting edge part 9 is positioned outside the inner hole 4, the second anastomotic part 8 is matched in the anastomotic segment 3, and a second anastomotic surface 13 is arranged on the side surface of the second anastomotic part 8; the first anastomotic surface 12 and the second anastomotic surface 13 are mutually matched, and the first anastomotic surface 12 and the second anastomotic surface 13 are respectively provided with a hooking surface 16 for limiting axial separation.
When the tool bit is used, the first anastomotic part 6 and the second anastomotic part 8 are matched all the time, the connecting part 5 is connected with the connecting section 2, the fixation of the tool bit 11 can be realized, when the tool bit is disassembled, the connecting part 7 is rotated to separate the connecting part 5 from the connecting section 2, the first anastomotic part 6 and the second anastomotic part 8 slide out of the inner hole 4, and the first anastomotic part 6 and the second anastomotic part 8 can be separated.
Since the first anastomotic part 6 and the second anastomotic part 8 are positioned on the anastomotic segment 3 and the side surfaces of the two anastomotic parts are matched, the first anastomotic part 6 and the second anastomotic part 8 cannot be radially separated when the anastomotic segment 3 is positioned, the first anastomotic surface 12 and the second anastomotic surface 13 are respectively provided with a hooking surface 16 for limiting axial separation, the first anastomotic part 6 and the second anastomotic part 8 cannot be axially separated, and the first anastomotic part 6 and the second anastomotic part 8 cannot be separated from any direction when the first anastomotic part 6 and the second anastomotic part 8 are positioned on the anastomotic segment 3, thereby achieving the aim of fixing the cutter head 11 through the connecting piece 7.
The tool bit 11 can be very simply changed to this scheme, only need set up a hook face 16 can regard as connection structure at tool bit 11, and the processing degree of difficulty is very low.
The hooking surface 16 is perpendicular to the axis of the inner bore 4. So as to concentrate the interaction force between the tool bit 11 and the connecting piece 7 in the axial direction, avoid generating oblique component force between the tool bit 11 and the tool bar 1 when using the tool bit 11, and effectively avoid damaging the connecting structure by the component force.
The first anastomotic surface 12 and the second anastomotic surface 13 are matched in a concave-convex anastomosis manner. So as to improve the tightness of the fit of the two.
The first anastomotic surface 12 and the second anastomotic surface 13 are respectively provided with a groove 14 and a bulge 15 which are matched with each other, and the hooking surface 16 is positioned on the boundary side surface of the groove 14 and the bulge 15. The first anastomotic surface 12 and the second anastomotic surface 13 are matched through the grooves 14 and the protrusions 15, and the matching stability and the compactness are better.
The connecting section 2 is a conical hole, one end of the hole opening of the conical hole is larger in diameter, and the outer side face of the first anastomotic part 6 is a conical column matched with the connecting section 2. So that the conical hole and the conical column can be matched in a quick centering way when the connecting piece 7 pulls the cutter head 11 to move towards the inner hole 4, and the cutter head 11 is locked quickly.
The second anastomotic part 8 is positioned on a conical column matched with the connecting section 2. So that the connecting piece 7 can be quickly centered in the inner bore 4, improving the stability of the connection to the cutter head 11.
Preferably, when the tapered post is fitted into the tapered hole, the outer tapered surface of the second engaging portion 8 is not fully in contact with the tapered hole, so as to achieve axial pulling force of the connecting member against the cutter head.
A screwing joint surface 10 is arranged between the blade part 9 and the second anastomotic part 8. So that the connecting piece 7 is driven to rotate together by the engagement of the wrench to twist the joint surface 10 to catch the knife edge.
The connecting section 2 is provided with an internal thread, and the connecting part 5 is provided with an external thread adapted to the internal thread. The connecting section 2 and the connecting part 5 can be quickly and conveniently disassembled and assembled through threaded fit.
The cutter bar 1, the cutter head 11 and the connecting piece 7 are respectively provided with cooling holes 17 in the axial direction. The cooling liquid is supplied to the cutter head 11 through the cooling holes 17. The cooling hole 17 and the inner bore 4 in this embodiment are in actual communication.
The main principle of the scheme is that the tool bit 11 and the connecting piece 7 are utilized to form axial limiting cooperation combination, the limiting structure is simpler than a threaded structure, the processing is convenient, the manufacturing cost can be obviously reduced, then radial limiting is formed through the inner hole of the tool bar 1, and the purpose of full limiting between the tool bit 11 and the connecting piece 7 is achieved.
The utility model has the beneficial effects that:
the tool bit 11 is installed in the change that this scheme can be very simple and convenient, and the fixed knot of tool bit 11 constructs simply, and the processing degree of difficulty can be very much lower, adopts the hook face 16 of perpendicular to dabber can effectually avoid the component side direction of tool bit 11 to act on connecting piece 7, improvement tool bit 11 that can be fine isotructure life.
In addition, the hook surface 16 in the present embodiment may also adopt a cambered surface or an inclined surface structure. The first anastomotic surface 12 and the second anastomotic surface 13 adopt sawtooth structures which are anastomotic with each other.
The hooking surface 16 which is perpendicular to the axis line preferentially concentrates the axial pulling force in the axial direction, avoids generating component force on the cutter bar 1 or the cutter head 11, and improves the matching firmness.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples merely represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the utility model. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.
Claims (9)
1. The disposable cutter is characterized by comprising a cutter bar (1), a cutter head (11) and a connecting piece (7);
the cutter bar (1) is provided with an inner hole (4), and the inner hole (4) comprises a connecting section (2) and an anastomotic section (3);
the connecting piece (7) comprises a connecting part (5) and a first anastomotic part (6), the connecting part (5) is detachably connected with the connecting section (2), the first anastomotic part (6) is adapted to the anastomotic section (3), and a first anastomotic surface (12) is arranged on the side surface of the first anastomotic part (6);
the cutter head (11) comprises a cutting edge part (9) and a second anastomotic part (8), the cutting edge part (9) is positioned outside the inner hole (4), the second anastomotic part (8) is adapted to the anastomotic segment (3), and a second anastomotic surface (13) is arranged on the side surface of the second anastomotic part (8);
the first anastomotic surface (12) and the second anastomotic surface (13) are mutually matched, and the first anastomotic surface (12) and the second anastomotic surface (13) are respectively provided with a hooking surface (16) for limiting axial separation.
2. The throw-away tool according to claim 1, wherein: the hooking surface (16) is perpendicular to the axis of the inner hole (4).
3. The throw-away tool according to claim 1, wherein: the first anastomotic surface (12) and the second anastomotic surface (13) are matched in a concave-convex way.
4. A disposable cutter according to claim 3, wherein: the first anastomotic surface (12) and the second anastomotic surface (13) are respectively provided with a groove (14) and a bulge (15) which are matched with each other, and the hooking surface (16) is positioned on the boundary side surface of the groove (14) and the bulge (15).
5. The throw-away tool according to claim 1, wherein: the connecting section (2) is a conical hole, one end of the hole opening of the conical hole is larger in diameter, and the outer side face of the first anastomotic part (6) is a conical column matched with the connecting section (2).
6. The throw-away tool of claim 5, wherein: the second anastomotic part (8) is positioned on a conical column matched with the connecting section (2).
7. The throw-away tool according to claim 1, wherein: a screwing joint surface (10) is arranged between the blade part (9) and the second anastomotic part (8).
8. The throw-away tool according to claim 1, wherein: the connecting section (2) is provided with internal threads, and the connecting part (5) is provided with external threads matched with the internal threads.
9. The throw-away tool according to claim 1, wherein: the cutter bar (1), the cutter head (11) and the connecting piece (7) are respectively axially provided with cooling holes (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223047481.0U CN219074408U (en) | 2022-11-16 | 2022-11-16 | Disposable cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223047481.0U CN219074408U (en) | 2022-11-16 | 2022-11-16 | Disposable cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219074408U true CN219074408U (en) | 2023-05-26 |
Family
ID=86407074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223047481.0U Active CN219074408U (en) | 2022-11-16 | 2022-11-16 | Disposable cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219074408U (en) |
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2022
- 2022-11-16 CN CN202223047481.0U patent/CN219074408U/en active Active
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