CN203765017U - High-accuracy three-jaw self-centering chuck - Google Patents
High-accuracy three-jaw self-centering chuck Download PDFInfo
- Publication number
- CN203765017U CN203765017U CN201320754096.1U CN201320754096U CN203765017U CN 203765017 U CN203765017 U CN 203765017U CN 201320754096 U CN201320754096 U CN 201320754096U CN 203765017 U CN203765017 U CN 203765017U
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- CN
- China
- Prior art keywords
- conical
- tooth
- pad
- square
- fluted disc
- 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
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Abstract
A high-accuracy three-jaw self-centering chuck used by a center lathe is composed of a conical pad (1), a shell (2), a small conical gear (3), a square-tooth conical tooth disk (4), clamping jaws (5) and an adjusting bolt (6), wherein the conical pad (1) and the shell (2) are closely matched and assembled, the inner circle of the square-tooth conical tooth disk (4) is machined to form a conical surface and is installed on the outer circle of the conical pad (1), and the adjusting bolt (6) is connected with a threaded hole in the conical pad (1) through a threaded hole in the shell (2); after the contact face between the conical pad (1) and the square-tooth conical tooth disk (4) is abraded, the radial gap between the conical pad (1) and the square-tooth conical tooth disk (4) is reduced by tightening the adjusting bolt (6), and accurate positioning is achieved.
Description
Technical field
The utility model is a kind of high-precision three-jaw self-centering chuck that engine lathe uses, it increases and has improved location basal plane on the basis of original three-jaw self-centering chuck, the positioning precision of three-jaw self-centering chuck has been realized adjustable, the service life of having improved positioning precision and chuck.
Background technology
At present, known three-jaw self-centering chuck is comprised of housing, claw, Fang Ya Cone shape fluted disc, bevel gear.The positioning precision of three pawls mainly coordinates institute to determine by internal diameter and the excircle orientation step in housing of Fang Ya Cone shape fluted disc, because it is planar slide rotating contact, when contact surface abrasion or manufacture excesssive gap, claw causes claw abnormal displacement under the drive of square tooth taper fluted disc, and the positioning precision of relative workpiece is reduced.
Summary of the invention
For overcome three-jaw self-centering chuck in the process of using gear because positioning precision that locating surface wearing and tearing or workmanship cause reduces problem.The utility model provides a kind of adjustable positioning device that can make three-jaw self-centering chuck positioning precision improve and remain unchanged, it not only can make the positioning precision of claw improve, and can lower the gap between perfect square tooth taper fluted disc and housing locating surface in the required situation of work, make the positioning precision long period of claw remain on best use state.
The scheme of the technology that the utility model adopts is: by Fang Ya Cone shape fluted disc endoporus processing and remodelling, be taper, on positioning table in chuck housing, add a taper positioning sleeve, match with the taper fluted disc of square tooth, during adjustment, utilize on housing three to adjust bolts and pull and make taper sheath displacement, cone pad closely cooperates to realize accurate location mutually with the endoporus with square tooth taper fluted disc.
Accompanying drawing explanation
Accompanying drawing is the structural map of high-precision three-jaw self-centering chuck.In the accompanying drawings: bolt is adjusted in (1) cone pad, (2) housing, (3) bevel pinion, (4) square tooth taper fluted disc, (5) claw, (6).
Specific implementation method:
Structure of the present utility model is as shown in the figure: shown in figure, be the profile of one pawl from three-jaw self-centering chuck, by cone pad (1), housing (2), bevel pinion (3), square tooth taper fluted disc (4), claw (5), adjust bolt (6) and form.
Its installation is as follows, cone pad (1) assembles in housing (2) tight fit, the inner circle of side's tooth taper fluted disc (4) is processed to the conical surface, be contained on the cylindrical of cone pad (1), adjust bolt (6) and be connected with the screw on cone pad (1) by the screw on housing (2).Claw (5) is fixed on the track of housing (2), side's engagement of the upper one side of the square tooth on claw (5) and square tooth taper fluted disc (4), bevel pinion (3) meshes with the cone tooth of the upper another side of square tooth taper fluted disc (4), when rotation bevel pinion (3), bevel pinion (3) side's of drive tooth taper fluted disc (4) rotation, side's tooth taper fluted disc (4) drives again claw (5) to realize into pushing away self-centering campaign
The utility model beneficial effect is: after the contact surface abrasion of cone pad (1) and square tooth taper fluted disc (4), screw and adjust bolt (6), cone pad (1) and square tooth taper fluted disc (4) radial clearance are reduced, realize accurately location.
Claims (1)
1. the high-precision three-jaw self-centering chuck that an engine lathe uses, by cone pad (1), housing (2), bevel pinion (3), square tooth taper fluted disc (4), claw (5), adjustment bolt (6), formed, it is characterized in that: cone pad (1) assembles in housing (2) tight fit, the inner circle of side's tooth taper fluted disc (4) is processed to the conical surface, be contained on the cylindrical of cone pad (1), adjust bolt (6) and be connected with the screw on cone pad (1) by the screw on housing (2).Claw (5) is fixed on the track of housing (2), side's engagement of the upper one side of the square tooth on claw (5) and square tooth taper fluted disc (4), bevel pinion (3) and the above cone tooth engagement of another side of square tooth taper fluted disc (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320754096.1U CN203765017U (en) | 2013-11-22 | 2013-11-22 | High-accuracy three-jaw self-centering chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320754096.1U CN203765017U (en) | 2013-11-22 | 2013-11-22 | High-accuracy three-jaw self-centering chuck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203765017U true CN203765017U (en) | 2014-08-13 |
Family
ID=51282264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320754096.1U Expired - Fee Related CN203765017U (en) | 2013-11-22 | 2013-11-22 | High-accuracy three-jaw self-centering chuck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203765017U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104551061A (en) * | 2015-01-07 | 2015-04-29 | 池州共康汽车零部件有限公司 | Floating clamping three-jaw chuck for automobile |
| CN109623246A (en) * | 2019-01-25 | 2019-04-16 | 常熟市创新焊接设备有限公司 | A kind of welding fixture easy to operate |
-
2013
- 2013-11-22 CN CN201320754096.1U patent/CN203765017U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104551061A (en) * | 2015-01-07 | 2015-04-29 | 池州共康汽车零部件有限公司 | Floating clamping three-jaw chuck for automobile |
| CN109623246A (en) * | 2019-01-25 | 2019-04-16 | 常熟市创新焊接设备有限公司 | A kind of welding fixture easy to operate |
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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: 20161122 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |