CN203765012U - Forming cutter for processing stepped hole - Google Patents
Forming cutter for processing stepped hole Download PDFInfo
- Publication number
- CN203765012U CN203765012U CN201420084745.6U CN201420084745U CN203765012U CN 203765012 U CN203765012 U CN 203765012U CN 201420084745 U CN201420084745 U CN 201420084745U CN 203765012 U CN203765012 U CN 203765012U
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- cutter
- cooling fluid
- blade
- segment
- radius
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- Expired - Fee Related
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Abstract
A forming cutter for processing a stepped hole comprises a cutter body, a cutter holder and four cutting parts, wherein the cutter holder is coaxially connected with the center on the rear end surface of the cutter body; the four cutting parts are uniformly distributed on the circumference of the cutter body; each cutting part comprises a front segment, a middle segment, and a rear segment; the turning radius of the front segment is smaller than that of the middle segment; the turning radius of the middle segment is smaller than that of the rear segment; a front cutter blade is arranged on the outer side at the front end of the front segment; a middle cutter blade is arranged on the outer side at the front end of the middle segment; the rear cutter blade is arranged on the outer side at the front end of the rear segment; a threaded fine-tuning hole used for fine-tuning the turning radius of one of the cutting parts is formed in the cutter body and the cutting part in the radial direction. The forming cutter is novel in design, simple in structure, easy to process and manufacture, and convenient and fast to assemble and disassemble, and can conduct machine shaping on a stepped hole and a chamfer angle in one step; processed pore diameters meet requirements on sizes; the service life of the cutter is prolonged; a high-speed cutter vibration phenomenon is avoided; the processing efficiency is high, the precision is high; the rejection rate is low.
Description
Technical field
The utility model belongs to Machining Technology field, relates in particular to a kind of forming cutter for processing shoulder hole.
Background technology
In the time that processing has the shoulder hole of multiple steps on some workpiece, the processing method adopting is at present used exactly manyly processes reamer several times, and not only efficiency is low, and need to repeatedly clamp and process, and is easy to occur mismachining tolerance, causes percent defective too high.In addition, the at present also forming cutter of property processing shoulder hole once, in the time of processing shoulder hole, often there is the shake phenomenon of cutter of shrinkage cavity (not reaching the aperture size of shoulder hole requirement after forming cutter wearing and tearing) and high speed in this forming cutter.
Utility model content
The utility model is in order to solve weak point of the prior art, provides that a kind of structure, stability with fine setting forming cutter cutting external diameter is strong, the forming cutter for processing shoulder hole of long service life.
For solving the problems of the technologies described above, the utility model adopts following technical scheme: for the forming cutter of processing shoulder hole, comprise cutter hub, with the coaxial handle of a knife being connected in cutter hub rear end face center and be distributed on cutter hub week four cutting tips upwards, described each cutting tip includes leading portion, stage casing and back segment three parts, the radius of gyration of leading portion is less than the radius of gyration in stage casing, the radius of gyration in stage casing is less than the radius of gyration of back segment, the front end outside of leading portion is provided with front blade, the front end outside in stage casing is provided with middle blade, the front end outside of back segment is provided with rear blade, front end outside and the axial angle of middle blade axial cross section are 30 °, front end outside and the axial angle of rear blade axial cross section are 20 °,
Cutter hub and one of them cutting tip are radially provided with the screw thread fine setting hole for finely tuning this cutting tip radius of gyration.
Described handle of a knife center is by being provided with a cooling fluid admission passage before backward, cutter hub is provided with cooling fluid passing away, cooling fluid passing away is inner to be connected with cooling fluid admission passage, cooling fluid passing away is provided with respectively four groups towards four cutting tips, every group of cooling fluid passing away is provided with three, article three, the outlet section of cooling fluid passing away is respectively towards front blade, middle blade and rear blade, every all right back setting that turns forward of cooling fluid passing away.
Adopt technique scheme, there is following technique effect:
1, the front blade on cutting tip, middle blade and rear blade are processed respectively the hole in corresponding aperture, middle blade carries out the chamfering of 30 ° to shoulder hole, rear blade carries out the chamfering of 20 ° to shoulder hole, thereby disposable by shoulder hole machine-shaping, has improved the efficiency of machine-shaping.
2, because cutting tip therein is radially provided with the screw thread fine setting hole for finely tuning this cutting tip radius of gyration, when occurring cutting tip wearing and tearing, when radius of machining is less than the desired shoulder hole size of workpiece to be machined, can use bolt to screw into screw thread fine setting hole, in the process of tighting a bolt, can, by size small this cutting tip radial dilatation, so just can ensure under the prerequisite of whole cutter intensity the radius of clean-up of fine setting (increase) cutter.
3, the setting of cooling fluid admission passage and cooling fluid passing away can pass at cutting position cooling fluid and carry out coolingly and lubricated in the process of processing, and extends service life of cutter; Every all right back setting that turns forward of cooling fluid passing away, can try one's best and not reduce the cooling fluid velocity of discharge like this, makes the discharge of cooling fluid more smooth and easy.
The utility model modern design, simple in structure, be easy to processing and manufacturing, easy to loading and unloading, quick, can be by shoulder hole and the disposable machine-shaping of chamfering, processing aperture meets dimensional requirement, extend cutter life, avoid shaking at a high speed cutter phenomenon, working (machining) efficiency is high, precision is high, and percent defective is low.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is A place enlarged drawing in Fig. 1;
Fig. 4 is B place enlarged drawing in Fig. 1.
Detailed description of the invention
As Fig. 1, Fig. 2, shown in Fig. 3 and Fig. 4, forming cutter for processing shoulder hole of the present utility model, comprise cutter hub 1, with the cutter hub 1 coaxial handle of a knife being connected 2 in rear end face center and be distributed on cutter hub 1 week four cutting tips 3 upwards, each cutting tip 3 includes leading portion, stage casing and back segment three parts, the radius of gyration of leading portion is less than the radius of gyration in stage casing, the radius of gyration in stage casing is less than the radius of gyration of back segment, the front end outside of leading portion is provided with front blade 4, the front end outside in stage casing is provided with middle blade 5, the front end outside of back segment is provided with rear blade 6, front end outside and the axial angle X of middle blade 5 axial cross sections are 30 °, front end outside and the axial angle Y of rear blade 6 axial cross sections are 20 °,
Cutter hub 1 and one of them cutting tip 3 are radially provided with the screw thread fine setting hole 7 for finely tuning these cutting tip 3 radius of gyration.
Handle of a knife 2 centers are by being provided with a cooling fluid admission passage 8 before backward, cutter hub 1 is provided with cooling fluid passing away 9, cooling fluid passing away 9 is inner to be connected with cooling fluid admission passage 8, cooling fluid passing away 9 is provided with respectively four groups towards four cutting tips 3, every group of cooling fluid passing away 9 is provided with three, article three, the outlet section of cooling fluid passing away 9 is respectively towards front blade 4, middle blade 5 and rear blade 6, every all right back setting that turns forward of cooling fluid passing away 9.
Front blade 4, middle blade 5 and rear blade 6 on cutting tip 3 processed respectively the hole in corresponding aperture, middle blade 5 carries out the chamfering of 30 ° to shoulder hole, rear blade 6 carries out the chamfering of 20 ° to shoulder hole, thereby disposable by shoulder hole machine-shaping, has improved the efficiency of machine-shaping.
Because cutting tip 3 therein is radially provided with the screw thread fine setting hole 7 for finely tuning these cutting tip 3 radius of gyration, when occurring that cutting tip 3 weares and teares, when radius of machining is less than the desired shoulder hole size of workpiece to be machined, can use bolt to screw into screw thread fine setting hole 7, in the process of tighting a bolt, can, by the small size of these cutting tip 3 radial dilatation, so just can ensure under the prerequisite of whole cutter intensity the radius of clean-up of fine setting (increase) cutter.
The setting of cooling fluid admission passage 8 and cooling fluid passing away 9 can pass at cutting position cooling fluid and carry out coolingly and lubricated in the process of processing, and extends service life of cutter; Every all right back setting that turns forward of cooling fluid passing away 9, can try one's best and not reduce the cooling fluid velocity of discharge like this, makes the discharge of cooling fluid more smooth and easy.
Claims (2)
1. for the forming cutter of processing shoulder hole, comprise cutter hub, with the coaxial handle of a knife being connected in cutter hub rear end face center and be distributed on cutter hub week four cutting tips upwards, it is characterized in that: described each cutting tip includes leading portion, stage casing and back segment three parts, the radius of gyration of leading portion is less than the radius of gyration in stage casing, the radius of gyration in stage casing is less than the radius of gyration of back segment, the front end outside of leading portion is provided with front blade, the front end outside in stage casing is provided with middle blade, the front end outside of back segment is provided with rear blade, front end outside and the axial angle of middle blade axial cross section are 30 °, front end outside and the axial angle of rear blade axial cross section are 20 °,
Cutter hub and one of them cutting tip are radially provided with the screw thread fine setting hole for finely tuning this cutting tip radius of gyration.
2. the forming cutter for processing shoulder hole according to claim 1, it is characterized in that: described handle of a knife center is by being provided with a cooling fluid admission passage before backward, cutter hub is provided with cooling fluid passing away, cooling fluid passing away is inner to be connected with cooling fluid admission passage, cooling fluid passing away is provided with respectively four groups towards four cutting tips, every group of cooling fluid passing away is provided with three, article three, the outlet section of cooling fluid passing away is respectively towards front blade, middle blade and rear blade, every all right back setting that turns forward of cooling fluid passing away.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420084745.6U CN203765012U (en) | 2014-02-27 | 2014-02-27 | Forming cutter for processing stepped hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420084745.6U CN203765012U (en) | 2014-02-27 | 2014-02-27 | Forming cutter for processing stepped hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203765012U true CN203765012U (en) | 2014-08-13 |
Family
ID=51282259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420084745.6U Expired - Fee Related CN203765012U (en) | 2014-02-27 | 2014-02-27 | Forming cutter for processing stepped hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203765012U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105215391A (en) * | 2015-11-10 | 2016-01-06 | 广东鸿特精密技术（台山）有限公司 | The boring cutter of cutting fluid injection channel is established in a kind of |
| CN108817428A (en) * | 2018-08-27 | 2018-11-16 | 苏州沃斯曼精密机械有限公司 | The knife bar component of lateral bore machining |
-
2014
- 2014-02-27 CN CN201420084745.6U patent/CN203765012U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105215391A (en) * | 2015-11-10 | 2016-01-06 | 广东鸿特精密技术（台山）有限公司 | The boring cutter of cutting fluid injection channel is established in a kind of |
| CN108817428A (en) * | 2018-08-27 | 2018-11-16 | 苏州沃斯曼精密机械有限公司 | The knife bar component of lateral bore machining |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140813 Termination date: 20160227 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |