CN203316740U - Improved structure of live centre - Google Patents
Improved structure of live centre Download PDFInfo
- Publication number
- CN203316740U CN203316740U CN2013203180331U CN201320318033U CN203316740U CN 203316740 U CN203316740 U CN 203316740U CN 2013203180331 U CN2013203180331 U CN 2013203180331U CN 201320318033 U CN201320318033 U CN 201320318033U CN 203316740 U CN203316740 U CN 203316740U
- Authority
- CN
- China
- Prior art keywords
- centre
- chuck
- live centre
- improved structure
- workpiece
- 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
Landscapes
- Rotary Pumps (AREA)
- Gripping On Spindles (AREA)
Abstract
The utility model provides an improved structure of a live centre. The improved structure of the live centre substantially comprises a plane bearing, a rolling bearing and a centre main body, and further comprises a three-jaw chuck, wherein the three-jaw chuck is fixed on the centre main body through a chuck flange. The improved structure of the live centre is added with the three-jaw chuck on an original live centre, and clamps workpiece by utilizing radial movement of three jaws which are uniformly distributed on a chuck body, thereby guaranteeing positioning accuracy of the workpiece, and being steady and reliable in quality of the processed workpiece.
Description
Technical field
The utility model relates to a kind of top, relates in particular to a kind of live centre.
Background technology
Existing live centre, structure as shown in Figure 1, mainly comprises plane bearing 1, rolling bearing 2, tail spindle 3 and top main body 4.Because workpiece is the cast member blank, can there be the problems such as non-limit, uneven thickness between endoporus and end face, while using the rotation thimble top workpiece of this structure, workpiece shift often can occur, cause the product wall unevenness after processing, the product percent defective is high.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned defect, and a kind of improvement structure of live centre of simple in structure, accurate positioning is provided.
For achieving the above object, the technical solution of the utility model is:
A kind of improvement structure of live centre, mainly comprise plane bearing, rolling bearing and top main body, and it also comprises a scroll chuck, and described scroll chuck is fixed on top main body by a chuck flange.
Compared with prior art, the utlity model has following beneficial effect:
The utility model increases a scroll chuck on original live centre, utilizes moving radially of three claws being distributed on chuck body, and the two ends of workpiece are clamped, and guarantees the accuracy of workpiece location, and the workpiece quality after processing is reliable and stable.
The accompanying drawing explanation
Fig. 1 is the structural representation of existing live centre.
Fig. 2 is structural representation of the present utility model.
Wherein, 1. top main body 5. scroll chuck 6. chuck flanges of plane bearing 2. rolling bearing 3. tail spindle 4..
The specific embodiment
Below in conjunction with specific embodiment, the utility model is described in further detail.
The improvement structure of a kind of live centre as shown in Figure 2, mainly comprise plane bearing 1, rolling bearing 2 and top main body 4, and it also comprises a scroll chuck 5, and described scroll chuck 5 is fixed on top main body 4 by a chuck flange 6.
The utility model increases a scroll chuck on original live centre, utilization is distributed on moving radially of three claws on chuck body, and the workpiece two ends are all clamped, and first processes centre position, then take centre position as benchmark processing endoporus, the stable and reliable product quality after processing.
Claims (1)
1. the improvement structure of a live centre, mainly comprise plane bearing, rolling bearing and top main body, it is characterized in that: it also comprises a scroll chuck, and described scroll chuck is fixed on top main body by a chuck flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203180331U CN203316740U (en) | 2013-06-04 | 2013-06-04 | Improved structure of live centre |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203180331U CN203316740U (en) | 2013-06-04 | 2013-06-04 | Improved structure of live centre |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203316740U true CN203316740U (en) | 2013-12-04 |
Family
ID=49656137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203180331U Expired - Fee Related CN203316740U (en) | 2013-06-04 | 2013-06-04 | Improved structure of live centre |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203316740U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105665755A (en) * | 2016-04-07 | 2016-06-15 | 山东临沂金星机床有限公司 | Propping-pulling type lathe tailstock structure |
-
2013
- 2013-06-04 CN CN2013203180331U patent/CN203316740U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105665755A (en) * | 2016-04-07 | 2016-06-15 | 山东临沂金星机床有限公司 | Propping-pulling type lathe tailstock structure |
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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: 20131204 Termination date: 20150604 |
|
| EXPY | Termination of patent right or utility model |