CN203380395U - Auxiliary device used for two-side drilling of drilling bit jaw center holes - Google Patents
Auxiliary device used for two-side drilling of drilling bit jaw center holes Download PDFInfo
- Publication number
- CN203380395U CN203380395U CN201320460410.5U CN201320460410U CN203380395U CN 203380395 U CN203380395 U CN 203380395U CN 201320460410 U CN201320460410 U CN 201320460410U CN 203380395 U CN203380395 U CN 203380395U
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- China
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- drilling
- drilling bit
- spindle head
- tooth pawl
- auxiliary device
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Abstract
The utility model provides an auxiliary device used for two-side drilling of drilling bit jaw center holes. The auxiliary device comprises a two-side drilling machine and a positioning device installed between two drill bits of the two-side drilling machine, wherein the positioning device is fixedly installed on a working table and is provided with callipers, the shape and size of the callipers are the same as those of a drilling bit jaw spindle head, the drilling bit jaw spindle head can be clamped and locked by the callipers, and the axis of the drilling bit jaw spindle head and the axis of each drill bit are located on the same straight line after the drilling bit jaw spindle head is clamped by the callipers. The auxiliary device used for two-side drilling of the drilling bit jaw center holes can overcome the difficulty of low concentricity between two center holes and a spindle head during mining roller bit drilling bit jaw machining in the same industry and eliminate the eccentric wear phenomenon during accurate grinding of the drilling bit jaw spindle head, and the overall service life of the drill bits is prolonged.
Description
Technical field
The utility model device belongs to mining cone bit manufacturing technology field, is a kind of two-sided brill tooth pawl centre hole servicing unit particularly.
Background technology
The fine grinding quality of mining cone bit tooth pawl spindle nose is huge on the terminal life impact of drill bit.Because the tooth pawl is complicated obform body, all take two thimble installation way while in industry, refining spindle nose.The thimble clamping precision depends on the precision of tooth pawl two centre holes.At present, in industry, the method for processing tooth pawl centre hole is all the centre hole of subdrilling tooth pawl spindle nose one side, then with spindle nose spitting drill tooth pawl pawl back of the body centre hole simultaneously, the concentricity 0.30MM of two centre holes, cause eccentric wear while refining tooth pawl spindle nose, greatly shortened the service life of mining drill bit.
Therefore, the machining accuracy that how to improve tooth pawl centre hole is the difficult problem solved of always making great efforts to seek of the same trade.
Summary of the invention
Technical problem to be solved in the utility model is the deficiency for above-mentioned existence, a kind of concentricity difficult problem that can solve two centre holes and spindle nose in mining cone bit tooth pawl of the same trade processing is provided, eccentric wear phenomenon while eliminating fine grinding tooth pawl spindle nose, the two-sided brill tooth pawl centre hole servicing unit that the drill bit bulk life time is improved.
The utility model solves the technical scheme that its technical problem adopts:
Two-sided brill tooth pawl centre hole servicing unit, include two-sided drilling machine, and be arranged on the positioner between two drill bits of two-sided drilling machine, it is characterized in that: described positioner is fixedly mounted on workbench, positioner is provided with clamp, the shape of clamp is identical with tooth pawl spindle nose profile size can be locked by tooth pawl spindle nose chucking, and wherein clamp are by after tooth pawl spindle nose chucking, and the axis of tooth pawl spindle nose and the axis of drill bit are on the same straight line.
Compared with prior art, technical advantage of the present utility model is:
The utility model device can solve the concentricity difficult problem of two centre holes and spindle nose in rock bit tooth pawl processing, and the eccentric wear phenomenon while eliminating fine grinding tooth pawl spindle nose, make the raising of drill bit bulk life time.
The accompanying drawing explanation
Fig. 1 is the utility model embodiment front view;
In figure: 1 drill bit, 2 roller shell tooth pawl spindle noses, 3 clamp.
The specific embodiment
Below in conjunction with the specific embodiment, the utility model is further described:
Two-sided brill tooth pawl centre hole servicing unit as shown in Figure 1, include two-sided drilling machine, and be arranged on the positioner between two drill bits of two-sided drilling machine, described positioner is fixedly mounted on workbench, positioner is provided with clamp 3, the shape of clamp 3 is identical with tooth pawl spindle nose 2 profile sizes can be locked by tooth pawl spindle nose 2 chuckings, and wherein clamp 3 are by after tooth pawl spindle nose 2 chuckings, and the axis of tooth pawl spindle nose 2 and the axis of drill bit 1 are on the same straight line.
Take the utility model embodiment device, the concentricity of two centre holes and tooth pawl spindle nose can be controlled in 0.02MM, meet design requirement fully.
Above explanation is only Application Example of the present utility model, certainly can not limit with this interest field of the utility model, and the equivalence of therefore doing according to the utility model claim changes, and still belongs to protection domain of the present utility model.
Claims (1)
1. two-sided brill tooth pawl centre hole servicing unit, include two-sided drilling machine, and be arranged on the positioner between two drill bits of two-sided drilling machine, it is characterized in that: described positioner is fixedly mounted on workbench, positioner is provided with clamp, the shape of clamp is identical with tooth pawl spindle nose profile size can be locked by tooth pawl spindle nose chucking, and wherein clamp are by after tooth pawl spindle nose chucking, and the axis of tooth pawl spindle nose and the axis of drill bit are on the same straight line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320460410.5U CN203380395U (en) | 2013-07-30 | 2013-07-30 | Auxiliary device used for two-side drilling of drilling bit jaw center holes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320460410.5U CN203380395U (en) | 2013-07-30 | 2013-07-30 | Auxiliary device used for two-side drilling of drilling bit jaw center holes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203380395U true CN203380395U (en) | 2014-01-08 |
Family
ID=49868922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320460410.5U Expired - Fee Related CN203380395U (en) | 2013-07-30 | 2013-07-30 | Auxiliary device used for two-side drilling of drilling bit jaw center holes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203380395U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111250751A (en) * | 2020-03-20 | 2020-06-09 | 磐安艾肯机械设备有限公司 | New material metal perforating device |
-
2013
- 2013-07-30 CN CN201320460410.5U patent/CN203380395U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111250751A (en) * | 2020-03-20 | 2020-06-09 | 磐安艾肯机械设备有限公司 | New material metal perforating device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170327 Address after: 430080 Hubei Province, Wuhan City Qingshan District factory St. Tsing King Road No. 10 Patentee after: Wuhan Iron & Steel Group Metallurgical Heavy Industry Co., Ltd. Address before: 430080 Wuhan, Hubei Friendship Road, No. 999, Wuchang Patentee before: Wuhan Iron & Steel (Group) Corp. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140108 Termination date: 20180730 |