CN201833002U - Coarse boring tool shank - Google Patents
Coarse boring tool shank Download PDFInfo
- Publication number
- CN201833002U CN201833002U CN2010205875064U CN201020587506U CN201833002U CN 201833002 U CN201833002 U CN 201833002U CN 2010205875064 U CN2010205875064 U CN 2010205875064U CN 201020587506 U CN201020587506 U CN 201020587506U CN 201833002 U CN201833002 U CN 201833002U
- Authority
- CN
- China
- Prior art keywords
- knife
- handle
- hole
- cutter
- pilot hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000003754 machining Methods 0.000 abstract description 6
- 238000005520 cutting process Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
Landscapes
- Cutting Tools, Boring Holders, And Turrets (AREA)
Abstract
The utility model discloses a coarse boring tool shank, which comprises a Morse's cone. A hilt is disposed at one end of the Morse's cone, a tool assembling hole is arranged at the end of the hilt and is a hole inclined to the axial direction of the hilt, an included angle between the axial direction of the tool assembling hole and the axial direction of the hilt ranges from 30 degrees to 50 degrees, and a locking screw mounting hole which is communicated with the tool assembling hole is arranged on the surface of the hilt. The coarse boring tool shank assists in eliminating vibration, and provides a necessary foundation for finish machining holes.
Description
Technical field
The utility model relates to the Machining Technology field, is specifically related to a kind of heavy boring knife bar.
Background technology
In the processing of the hole of machine-building, can carry out bore hole processing with hole boring cutter, the boring cutter that is used for bore hole processing is installed in a boring cutter bar lower end, drives the boring cutter cutting workpiece by the boring cutter bar rotation.In the process, after surface of the work is passed to boring cutter bar to the reaction force of boring cutter, can make boring cutter bar produce radially vibration.For fear of the influence of this vibration to the bore hole machining accuracy, its ratio of elongation of existing boring cutter bar, promptly clip position to the length of boring cutter bar bottom and the ratio of boring cutter bar bottom diameter from boring cutter bar generally is not more than 4, if ratio of elongation is long, the boring cutter bar that then the stretches out clip position length that overhangs is longer, cause tooling system rigidity, intensity relatively poor, on boring machine, under the influence of cutting force, be easy to generate cutting vibration during bore hole.
Therefore, when using the cutter of above-mentioned boring cutter bar to carry out deep hole machining, because cutting vibration is big, both influenced the crudy of workpiece hole, the hole surface that processes during deep hole machining easily presents ripple, can't reach the requirement of product surface roughness; Influence the service life of cutter again, deflection deformation easily takes place or produces radial cracking in boring cutter bar under the influence of described cutting vibration; Simultaneously owing to can not adopt the process program of high-speed cutting also will influence the production efficiency of bore hole operation; Above-mentioned drawbacks limit the application of boring cutter bar in the deep hole machining field.
Summary of the invention
At above-mentioned technical problem, the purpose of this utility model provides a kind of heavy boring knife bar that carried out heavy boring before carrying out right boring, and this boring cutter bar helps to eliminate vibration, for the fine finishining hole provides necessary basis.
The technical scheme that realizes above-mentioned purpose is as follows:
The heavy boring knife bar, comprise Morse's cone, this Morse's cone one end is provided with handle of a knife, the end of described handle of a knife is provided with the cutter pilot hole, this cutter pilot hole is one to favour the axial hole of handle of a knife, the angle axial and that handle of a knife axially is mutually of cutter pilot hole is 30 °-50 °, and the surface of handle of a knife is provided with the lock-screw installing hole that is communicated with the cutter pilot hole.
Described Morse's cone is provided with an annular boss, and this annular boss is provided with annular clamping groove.
Described handle of a knife is the handle of a knife of step, and this handle of a knife is provided with one section of the cutter pilot hole and is enlarged diameter section.
Adopted such scheme, the end of described handle of a knife is provided with the cutter pilot hole, this cutter pilot hole is one to favour the axial hole of handle of a knife, the cutter pilot hole axially and the angle that axially is mutually of handle of a knife be 30 °-50 °, the surface of handle of a knife is provided with the lock-screw installing hole that is communicated with the cutter pilot hole.The cutter pilot hole is set to skewed, boring cutter is assemblied in this pilot hole, when cutting, because the hole that the position of boring cutter is cut relatively is also for skewed, therefore, being cut thing is that the component of this reaction force acts on this cutter to the reaction force of cutter, reduce the suffered reaction force of cutter greatly, therefore, can reduce the vibration of cutter, avoid forming ripple at hole surface, the fine finishining for postorder provides good basis like this.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
In the accompanying drawing, 1 is Morse's cone, and 2 is annular boss, and 3 is annular clamping groove, and 4 is handle of a knife, and 5 is pilot hole, and 6 is the lock-screw installing hole.
The specific embodiment
With reference to Fig. 1, heavy boring knife bar of the present utility model comprises Morse's cone 1, is provided with an annular boss 2 on Morse's cone 1, and this annular boss is provided with annular clamping groove 3, and by annular clamping groove 3, it is more firm to help making whole knife bar clamping to get.These Morse's cone 1 one ends are provided with handle of a knife 4, and the end of described handle of a knife is provided with cutter pilot hole 5.Handle of a knife 4 is the handle of a knife of step, and this handle of a knife is provided with one section of the cutter pilot hole and is enlarged diameter section, and remainder is the reduced diameter section that external diameter equates.The enlarged diameter section of handle of a knife 4 is formed by the carbide alloy manufacturing.Cutter pilot hole 5 is one to favour the axial hole of handle of a knife, the angle α axial and that handle of a knife 4 axially is mutually of cutter pilot hole 5 is 30 °-50 °, the surface of handle of a knife 4 is provided with the lock-screw installing hole 6 that is communicated with the cutter pilot hole, lock-screw installing hole 6 is a screwed hole, lock-screw can lock the cutter head that is arranged in cutter pilot hole 5 tightly with after lock-screw installing hole 6 is threaded.
Claims (3)
1. heavy boring knife bar, comprise Morse's cone, this Morse's cone one end is provided with handle of a knife, it is characterized in that: the end of described handle of a knife is provided with the cutter pilot hole, this cutter pilot hole is one to favour the axial hole of handle of a knife, the angle axial and that handle of a knife axially is mutually of cutter pilot hole is 30 °-50 °, and the surface of handle of a knife is provided with the lock-screw installing hole that is communicated with the cutter pilot hole.
2. heavy boring knife bar according to claim 1 is characterized in that: described Morse's cone is provided with an annular boss, and this annular boss is provided with annular clamping groove.
3. heavy boring knife bar according to claim 1 is characterized in that: described handle of a knife is the handle of a knife of step, and this handle of a knife is provided with one section of the cutter pilot hole and is enlarged diameter section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205875064U CN201833002U (en) | 2010-11-02 | 2010-11-02 | Coarse boring tool shank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205875064U CN201833002U (en) | 2010-11-02 | 2010-11-02 | Coarse boring tool shank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201833002U true CN201833002U (en) | 2011-05-18 |
Family
ID=44003096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205875064U Expired - Fee Related CN201833002U (en) | 2010-11-02 | 2010-11-02 | Coarse boring tool shank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201833002U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106180775A (en) * | 2015-04-30 | 2016-12-07 | 贵州盘江矿山机械有限公司 | A kind of cutter holding device of digital-control boring-milling machine |
-
2010
- 2010-11-02 CN CN2010205875064U patent/CN201833002U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106180775A (en) * | 2015-04-30 | 2016-12-07 | 贵州盘江矿山机械有限公司 | A kind of cutter holding device of digital-control boring-milling machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110518 Termination date: 20111102 |