CN216151722U - Connecting structure of cutter and cutter handle - Google Patents
Connecting structure of cutter and cutter handle Download PDFInfo
- Publication number
- CN216151722U CN216151722U CN202122011750.7U CN202122011750U CN216151722U CN 216151722 U CN216151722 U CN 216151722U CN 202122011750 U CN202122011750 U CN 202122011750U CN 216151722 U CN216151722 U CN 216151722U
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- handle
- cutter
- cavity
- cylindrical
- tool
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- 238000005553 drilling Methods 0.000 claims description 3
- 238000003801 milling Methods 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims 3
- 238000010168 coupling process Methods 0.000 claims 3
- 238000005859 coupling reaction Methods 0.000 claims 3
- 239000000463 material Substances 0.000 abstract description 4
- 238000003754 machining Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002173 cutting fluid Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 125000003003 spiro group Chemical group 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model relates to a connecting structure of a cutter and a cutter handle, which comprises the cutter and the cutter handle, wherein the cutter and the cutter handle are detachably connected through a connecting part, a connecting cavity corresponding to the connecting part is arranged at the end part of the cutter handle, a first connecting handle and a second connecting handle are sequentially arranged on the connecting part from the outer end to the inner end, the first connecting handle is a first cylindrical handle, external threads are arranged on the outer surface of the first cylindrical handle, the second connecting handle is a frustum handle or a second cylindrical handle, a first cavity and a second cavity are sequentially arranged on the connecting cavity from the inner end of the outer end, the first cavity is a first cylindrical cavity, internal threads are arranged on the inner wall of the first cylindrical cavity, and the internal threads are screwed with the external threads so that the cutter is locked through the connecting part and the cutter handle. So, when cutter wearing and tearing or damage, only need dismantle the cutter replace new can, the handle of a knife can continue to use, avoided because cutter and handle of a knife are fixed body structure together, cutter and the handle of a knife after the damage can only wholly be abandoned, cause the extravagant problem of material.
Description
Technical Field
The utility model relates to the technical field of cutters, in particular to a connecting structure of a cutter and a cutter handle.
Background
At present, current cutter is generally fixed on the handle of a knife through the welded mode, after cutting metal surface for a long time, the blade of cutter must have wearing and tearing, because cutter and handle of a knife be fixed body structure together, cutter and the handle of a knife after using for a long time and damaging can only wholly abandon, so cause the material extravagant.
Therefore, how to overcome the above-mentioned deficiencies in the conventional technologies becomes an important technical problem to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
The utility model provides a connecting structure of a cutter and a cutter handle, which aims to solve the problems that the existing cutter is generally fixed on the cutter handle in a welding mode, the cutting edge of the cutter is inevitably worn after the metal surface is cut for a long time, and the cutter handle are fixed together to form an integral structure, so that the cutter and the cutter handle which are damaged after long-term use can only be integrally discarded, and the material waste is caused.
The connecting structure of the cutter and the cutter handle adopts the following technical scheme:
a connecting structure of a cutter and a cutter handle comprises the cutter, a connecting part and the cutter handle, wherein one end of the connecting part is connected with the cutter, the other end of the connecting part is detachably connected with the cutter handle, a connecting cavity corresponding to the connecting part is arranged at the end part of the cutter handle, the connecting part is sequentially provided with a first connecting handle and a second connecting handle from the outer end to the inner end, the first connecting handle is a first cylindrical handle, the outer surface of the first cylindrical handle is provided with external threads, the second connecting handle is a frustum handle or a second cylindrical handle, chamfers are arranged at two ends of the first connecting handle and the second connecting handle, the diameter of the first cylindrical handle is smaller than that of the second cylindrical handle, the minimum diameter of the conical handle is larger than that of the first cylindrical handle, the connecting cavity is sequentially provided with a first cavity and a second cavity from the inner end of the outer end, the first cavity is a first cylindrical cavity, and the inner wall of the first cylindrical cavity is provided with an internal thread which is in threaded connection with the external thread of the first cylindrical handle so that the cutter is locked with the cutter handle through the connecting part, and the second cavity is a conical cavity or a second cylindrical cavity.
Preferably, the cutter is provided with a flat square structure for locking the open end wrench.
Preferably, a tool withdrawal groove is arranged between the first cavity and the second cavity.
Preferably, the cutter and the connecting portion are provided as an integral structure.
Preferably, the cutter is provided as a milling cutter or a reamer or a drilling cutter or a boring cutter with a diameter of 40mm or less.
Preferably, the front end of cutter is equipped with 1-6 cutting edges, the cutting edge profile of cutting edge includes straightway and circular arc section, the quantity of straightway is 0-3, the quantity of circular arc section is 1-5, and the cutting edge is provided with the negative chamfer, negative chamfer width is 0.05mm-0.5mm, just the angle of negative chamfer is 10 ° -30 °.
Preferably, the edge part of each cutting edge is provided with 1-3 air outlet holes, and the diameter of each air outlet hole is 0.5-4 mm.
The utility model has the beneficial effects that: the tool and the tool handle are connected through the connecting part, one end of the connecting part is connected with the tool, the other end of the connecting part is detachably connected with the tool handle through threads, a connecting cavity corresponding to the connecting part is arranged at the end part of the tool handle, the connecting part comprises a first connecting handle and a second connecting handle, the connecting cavity comprises a first cavity and a second cavity, an external thread is arranged on the outer surface of the first connecting handle, an internal thread is arranged on the inner wall of the first cavity, and the internal thread is in threaded connection and locking with the external thread, so that the tool is locked by the connecting part and the tool handle; and the repeated positioning precision of the cutter connecting structure is within 0.003mm, so that the machining precision is improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.
FIG. 1 is a schematic view of a connection structure of a cutter and a cutter handle when a second connecting handle is a second cylindrical handle in the embodiment of the utility model;
FIG. 2 is a schematic view of a connection structure of the cutter and the cutter handle when the second connection handle is a frustum handle in the embodiment of the utility model.
In the figure:
1-cutter, 2-cutter handle, 3-first cylindrical handle, 4-external thread, 5-second cylindrical handle, 6-frustum handle, 7-first cavity, 8-second cavity, 9-internal thread, 10-flat square structure, 11-tool withdrawal groove, 12-cutting edge and 13-air outlet hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Hereinafter, embodiments will be described with reference to the drawings. The embodiments described below do not limit the scope of the utility model described in the claims. Further, the entire contents of the configurations shown in the following embodiments are not limited to those necessary as a solution of the utility model described in the claims.
Referring to fig. 1-2, the present embodiment provides a connecting structure of a tool and a tool holder, including a tool 1, a connecting portion and a tool holder 2, one end of the connecting portion is connected to the tool 1, and the other end is detachably connected to the tool holder 2, a connecting cavity corresponding to the connecting portion is provided at an end portion of the tool holder 2, the connecting portion is provided with a first connecting handle and a second connecting handle in sequence from an outer end to an inner end, the first connecting handle is set to be a first cylindrical handle 3, an external thread 4 is provided on an outer surface of the first cylindrical handle 3, the second connecting handle is set to be a frustum handle 6 or a second cylindrical handle 5, both ends of the first connecting handle and the second connecting handle are provided with chamfers, a diameter of the first cylindrical handle 3 is smaller than a diameter of the second cylindrical handle 5, a minimum diameter of the frustum handle 6 is larger than the diameter of the first cylindrical handle 3, the connecting cavity is provided with a first cavity 7 and a second cavity 8 in sequence from the outer end to the inner end, first cavity 7 sets up to first cylindrical cavity, and first cylindrical intracavity wall is equipped with internal thread 9, and internal thread 9 spiro union in the external screw thread 4 of first cylinder handle 3 so that cutter 1 passes through connecting portion and handle of a knife 2 locking, and second cavity 8 sets up to toper chamber or second cylindrical cavity.
It should be noted that, the tool 1 and the connecting portion can be set to be an integral structure, so that the connecting cavity of the tool holder 2 is fixed, the tool and the connecting portion can be replaced to be processed into the integral structure when the tool is machined, and when the tool 1 is worn, only the tool and the connecting portion required to be matched with the connecting cavity of the tool holder 2 need to be replaced.
Specifically, the tool 1 is provided as a milling cutter, a reamer, a drilling cutter, a boring cutter, or the like having a diameter of 40mm or less, but may be other tools as appropriate.
By the arrangement, the cutter can be quickly replaced, and is simple and convenient; and the repeated positioning precision of the cutter connecting structure is within 0.003mm, so that the machining precision is improved. When the cutting part of the cutter is worn, the cutter is only needed to be replaced, the cutter handle is not needed to be replaced, and a new replacement cutter is connected with the connecting cavity of the cutter handle. The problem of current cutter generally fix on the handle of a knife through the welded mode, after cutting metal surface for a long time, the blade of cutter must have wearing and tearing, because cutter and handle of a knife be fixed body structure together, cutter and the handle of a knife after using for a long time and damaging can only wholly abandon, cause the material waste is solved.
Preferably, the tool 1 is further provided with a flat square structure 10 for open-end wrench locking.
Further, in order to meet the machining requirements, a relief 11 is provided between the first cavity 7 and the second cavity 8.
In summary, the cutter 1 and the cutter handle 2 in the embodiment are detachably connected through the connecting portion, the connecting portion comprises a first connecting handle and a second connecting handle, the connecting cavity comprises a first cavity 7 and a second cavity 8, the outer surface of the first connecting handle is provided with an external thread 4, the inner wall of the first cavity 7 is provided with an internal thread 9, and the internal thread 9 is in threaded connection and locking with the external thread 4, so that the cutter 1 locks the cutter through the connecting portion and the cutter handle 2, the cutter 1 and the cutter handle 2 are fixed and directly screwed down from the front end of the cutter 1, and when the cutter needs to be replaced, the cutter handle 2 does not need to be detached from a machine tool, so that the cutter 1 can be quickly replaced, simply and conveniently; and the repeated positioning precision of the cutter connecting structure is within 0.003mm, so that the machining precision is improved.
In the present embodiment, the front end of the cutter 1 is provided with 1 to 6 cutting edges 12, specifically, 3, 4, 5, and the like, as the case may be.
Further, as shown in fig. 1-2, the blade profile of the cutting edge 12 includes straight line segments and arc segments, the number of the straight line segments is 0-3, the number of the arc segments is 1-5, specifically, the number of the straight line segments may be set to 1, the number of the arc segments is two, the straight line segments are located between two arc segments, and other numbers may also be set specifically as the case may be.
Meanwhile, the cutting edge 12 is provided with a negative chamfer, the width of the negative chamfer is 0.05mm-0.5mm, the angle of the negative chamfer is 10-30 degrees, and meanwhile, the passivation treatment is carried out on the cutting edge. The specific negative chamfer width and angle values are contingent.
Further, the edge of each cutting edge 12 is provided with 1 to 3 air outlets 13, specifically three air outlets may be provided, or other values may be provided, specifically as the case may be, the diameter of the air outlet 13 is 0.5mm to 4mm, specifically, 0.5mm, 2mm, 4mm, or other values may be provided, specifically as the case may be. Further, the position of the air outlet 13 can be subjected to processing simulation, so that the optimal chip removal effect can be achieved.
In conclusion, the cutter connected by the connecting structure in the embodiment can realize cold dry cutting, avoids the problems of difficult maintenance and environmental pollution caused by cutting fluid, is green and environment-friendly, greatly improves the processing efficiency, and can improve the surface roughness of a processed workpiece, particularly the surface roughness of the ball track of the rzeppa universal joint after being processed can reach Ra0.2.
It should be noted that the terms "first" and "second" as used herein do not denote any order or importance, but rather are used to distinguish the functions of the various elements; the stated "inner" and "outer" refer to the inner end close to the cutter and the outer end far away from the cutter along the axial direction of the cutter handle.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. A connecting structure of a cutter and a cutter handle comprises the cutter, a connecting part and the cutter handle, and is characterized in that one end of the connecting part is connected with the cutter, the other end of the connecting part is detachably connected with the cutter handle, a connecting cavity corresponding to the connecting part is arranged at the end part of the cutter handle, the connecting part is sequentially provided with a first connecting handle and a second connecting handle from the outer end to the inner end, the first connecting handle is a first cylindrical handle, the outer surface of the first cylindrical handle is provided with external threads, the second connecting handle is a frustum handle or a second cylindrical handle, chamfers are arranged at two ends of the first connecting handle and two ends of the second connecting handle, the diameter of the first cylindrical handle is smaller than that of the second cylindrical handle, the minimum diameter of the frustum handle is larger than that of the first cylindrical handle, and the connecting cavity is sequentially provided with a first cavity and a second cavity from the inner end of the outer end, the first cavity is set to be a first cylindrical cavity, an inner wall of the first cylindrical cavity is provided with an internal thread, the internal thread is in threaded connection with the external thread of the first cylindrical handle, so that the cutter can pass through the connecting portion and the handle of the knife to be locked, and the second cavity is set to be a conical cavity or a second cylindrical cavity.
2. The connecting structure of the cutter and the cutter handle as claimed in claim 1, wherein the cutter is provided with a flat square structure for locking of an open spanner.
3. The tool and holder connecting structure according to claim 1, wherein a relief groove is provided between the first cavity and the second cavity.
4. The tool and tool shank coupling structure of claim 1, wherein the tool and the coupling portion are provided as a unitary structure.
5. The coupling structure of a tool and a shank according to claim 1, wherein the tool is provided as a milling cutter or a reamer or a drilling cutter or a boring cutter having a diameter of 40mm or less.
6. The connecting structure of the cutter and the cutter handle as claimed in claim 1, wherein the front end of the cutter is provided with 1-6 cutting edges, the edge part profile of each cutting edge comprises straight line segments and circular arc segments, the number of the straight line segments is 0-3, the number of the circular arc segments is 1-5, the cutting edges are provided with negative chamfers, the width of each negative chamfer is 0.05mm-0.5mm, and the angle of each negative chamfer is 10-30 °.
7. The connecting structure of the cutter and the cutter handle as claimed in claim 6, wherein the edge part of each cutting edge is provided with 1-3 air outlets, and the diameters of the air outlets are 0.5mm-4 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122011750.7U CN216151722U (en) | 2021-08-25 | 2021-08-25 | Connecting structure of cutter and cutter handle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122011750.7U CN216151722U (en) | 2021-08-25 | 2021-08-25 | Connecting structure of cutter and cutter handle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216151722U true CN216151722U (en) | 2022-04-01 |
Family
ID=80839739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122011750.7U Ceased CN216151722U (en) | 2021-08-25 | 2021-08-25 | Connecting structure of cutter and cutter handle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216151722U (en) |
-
2021
- 2021-08-25 CN CN202122011750.7U patent/CN216151722U/en not_active Ceased
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20230327 Decision number of declaring invalidation: 560958 Granted publication date: 20220401 |
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| IW01 | Full invalidation of patent right |