CN203495271U - Clamp used for machining excircle of hollow shaft part - Google Patents
Clamp used for machining excircle of hollow shaft part Download PDFInfo
- Publication number
- CN203495271U CN203495271U CN201320592975.9U CN201320592975U CN203495271U CN 203495271 U CN203495271 U CN 203495271U CN 201320592975 U CN201320592975 U CN 201320592975U CN 203495271 U CN203495271 U CN 203495271U
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- China
- Prior art keywords
- expander
- mandrel
- hollow shaft
- fixture
- core shaft
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- 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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- 238000003754 machining Methods 0.000 title claims abstract description 15
- 238000005299 abrasion Methods 0.000 abstract 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The utility model belongs to the machining field, and specifically relates to a clamp used for machining an excircle of a hollow shaft part. The clamp is formed by an expander and a core shaft, one end of the core shaft is of a conical structure, the expander is sleeved on the conical structure position of the core shaft, and the central position of the other end of the core shaft is provided with a conical bore corresponding to a lathe center. The core shaft is supported by the center, an inner bore of a workpiece is tightly supported by the expander, positioning and clamping actions are achieved, and abrasion degree of the center is relatively small due to the fact that angles of contact surfaces are same, thereby prolonging service lifetime of the center.
Description
Technical field
The utility model belongs to machined field, is specifically related to a kind of fixture for hollow shaft type part Excircle machining.
Background technology
In some elongated hollow axle class part (apertures: outer bowlder 50mm～100mm) of processing, need Internal hole positioning turning, traditional locate mode is with top location, front and back, clamping, but because endoporus does not have chamfering, directly with top top endoporus, easily make top wearing and tearing, in tapering, form a lot of cannelure, affect Workpiece Machining Accuracy, and top loss is large.
Summary of the invention
The purpose of this utility model is to overcome deficiency of the prior art and provides a kind of can effectively be protected toply, extends the fixture of the hollow shaft type part Excircle machining in top service life.
The purpose of this utility model is achieved in that
A kind of fixture for hollow shaft type part Excircle machining, by expander and mandrel, formed, described mandrel one end is conical structure, and described expander is sleeved on the conical structure position of this mandrel, and the other end centre of described mandrel is provided with the conical bore corresponding with lathe centre.
The drift angle of described mandrel one end conical structure is 12 °.
The drift angle of the conical bore that described mandrel one end is corresponding with lathe centre is 60 °.
Described expander one end is provided with the edge protuberance that can easily expander be removed from mandrel.
The length of described expander is less than the length of the conical structure of mandrel.
Described expander consists of uniform three parts.
The utlity model has following advantage: on described top top, mandrel, by expander top tight workpiece endoporus, plays location clamping action, and because the angle of contact-making surface is identical less to the top degree of wear, extends top service life.
Accompanying drawing explanation
Fig. 1 is the structural representation of section of the present utility model.
Fig. 2 is the structural representation of expander.
The specific embodiment
As shown in Figure 1, a kind of fixture for hollow shaft type part Excircle machining, by expander 1 and mandrel 2, formed, described mandrel 2 one end are conical structure, described expander 1 is sleeved on the conical structure position of this mandrel 2, the other end centre of described mandrel 2 is provided with the conical bore corresponding with lathe centre 3, it is conical mechanism that described mandrel 2 adopts one end, in the centre of expander 1, be provided with the conical inner tube structure corresponding with the conical structure of mandrel 2 simultaneously, mandrel 2 and expander 1 form after suit like this, in order to guarantee expander 1 tensioner workpiece, that can exert oneself pushes expander 1 to inside workpiece, because mandrel 2 has adopted the mechanism of taper, expander 1 is when pushing, just very laborsaving, if mandrel 2 is structures of column, expander is not easy pushed to inside workpiece so, the apex angle α of described mandrel 2 one end conical structures is 12 °, it is test through practice that drift angle is set to 12 °, surpass this angle, be not easy expander 2 and mandrel 2 to push simultaneously, lower than this angle, mandrel is close to cylindrical structure, more difficult propelling movement.
Described expander 1 consists of uniform three parts, and this three part can be spliced to form the overall structure of expander.
The apex angle ss of the conical bore that described mandrel 2 one end are corresponding with lathe centre is 60 °, and this is to set according to the top angle of lathe.
Described expander 1 one end is provided with the edge protuberance 4 that can easily expander 1 be removed from mandrel, the effect of this projection 4 can more easily enter into inside workpiece by pressing on the one hand when expander pushes, when outwards withdrawing from the other hand, can act in this edge protuberance 4, easily expander 1 be extracted out.
The length of described expander 1 is less than the length of the conical structure of mandrel 2, and the object of doing is like this to be convenient to mandrel 2 firmly, thereby pass expander 1, can make the expander 1 more can tensioner workpiece.
Claims (6)
1. the fixture for hollow shaft type part Excircle machining, it is characterized in that: by expander and mandrel, formed, described mandrel one end is conical structure, described expander is sleeved on the conical structure position of this mandrel, and the other end centre of described mandrel is provided with the conical bore corresponding with lathe centre.
2. a kind of fixture for hollow shaft type part Excircle machining according to claim 1, is characterized in that: the apex angle α of described mandrel one end conical structure is 12 °.
3. a kind of fixture for hollow shaft type part Excircle machining according to claim 1, is characterized in that: the apex angle ss of the conical bore that described mandrel one end is corresponding with lathe centre is 60 °.
4. a kind of fixture for hollow shaft type part Excircle machining according to claim 1, is characterized in that: described expander one end is provided with the edge protuberance that can easily expander be removed from mandrel.
5. a kind of fixture for hollow shaft type part Excircle machining according to claim 1, is characterized in that: the length of described expander is less than the length of the conical structure of mandrel.
6. a kind of fixture for hollow shaft type part Excircle machining according to claim 1, is characterized in that: described expander consists of uniform three parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320592975.9U CN203495271U (en) | 2013-09-25 | 2013-09-25 | Clamp used for machining excircle of hollow shaft part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320592975.9U CN203495271U (en) | 2013-09-25 | 2013-09-25 | Clamp used for machining excircle of hollow shaft part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203495271U true CN203495271U (en) | 2014-03-26 |
Family
ID=50326278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320592975.9U Expired - Fee Related CN203495271U (en) | 2013-09-25 | 2013-09-25 | Clamp used for machining excircle of hollow shaft part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203495271U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017045525A1 (en) * | 2015-09-18 | 2017-03-23 | 苏州国量量具科技有限公司 | Novel clamp |
| CN110935896A (en) * | 2019-11-12 | 2020-03-31 | 安庆中船柴油机有限公司 | Machine tool tip protection device with diameter compensation effect |
| CN111070226A (en) * | 2019-12-24 | 2020-04-28 | 常州工学院 | A centering and grasping device for conical constricted hollow parts |
| CN111069641A (en) * | 2019-12-27 | 2020-04-28 | 西安航天动力机械有限公司 | Internal supporting tool for machining and trimming of cylindrical part |
| CN113172391A (en) * | 2020-01-24 | 2021-07-27 | 大众汽车股份公司 | Method for the production of a closed hollow shaft |
-
2013
- 2013-09-25 CN CN201320592975.9U patent/CN203495271U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017045525A1 (en) * | 2015-09-18 | 2017-03-23 | 苏州国量量具科技有限公司 | Novel clamp |
| CN110935896A (en) * | 2019-11-12 | 2020-03-31 | 安庆中船柴油机有限公司 | Machine tool tip protection device with diameter compensation effect |
| CN111070226A (en) * | 2019-12-24 | 2020-04-28 | 常州工学院 | A centering and grasping device for conical constricted hollow parts |
| CN111069641A (en) * | 2019-12-27 | 2020-04-28 | 西安航天动力机械有限公司 | Internal supporting tool for machining and trimming of cylindrical part |
| CN113172391A (en) * | 2020-01-24 | 2021-07-27 | 大众汽车股份公司 | Method for the production of a closed hollow shaft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140326 Termination date: 20140925 |
|
| EXPY | Termination of patent right or utility model |