CN202367227U - Post-tensioning automatic chuck - Google Patents
Post-tensioning automatic chuck Download PDFInfo
- Publication number
- CN202367227U CN202367227U CN2011205112325U CN201120511232U CN202367227U CN 202367227 U CN202367227 U CN 202367227U CN 2011205112325 U CN2011205112325 U CN 2011205112325U CN 201120511232 U CN201120511232 U CN 201120511232U CN 202367227 U CN202367227 U CN 202367227U
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- China
- Prior art keywords
- piston
- cover plate
- post
- shell
- nut
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model discloses a post-tensioning automatic chuck, which comprises a piston (1), a cover plate (6), a shell (7) and a power wedge block (2) with a jack catch (5), wherein the cover plate (6) and the shell (7) are fixedly connected; the power wedge block (2) and the cover plate (6) are glidingly matched; the piston (1) is movably embedded in a cavity between the shell (7) and the cover plate (6); the front end of the piston (1) is provided with a piston tapered wedge (1-1); and the piston tapered wedge (1-1) is clamped in a chute of the power wedge block (2). The post-tensioning automatic chuck also comprises a pull rod connecting nut (8). The pull rod connecting nut (8) is fixedly arranged in the piston (1) through a hold-down nut (9). The post-tensioning automatic chuck disclosed by the utility model is compact in structure, is attractive in appearance, is reliable in operation and is low in cost.
Description
Technical field
The utility model relates to a kind of lathe and uses the post-tensioning automatic chuck.
Background technology
At present, the existing machine tool air spider, complex structure, assembly difficulty is bigger, generally all wants the professional person just can assemble, because installation workload is big, operating efficiency will obviously descend, cost is higher.The air spider structure of Chinese patent CN2780387Y disclosed a kind of " the clamping centralized positioning system that is used for air spider " for example; In this structure; The piston motion drives the chuck wedge-shaped sleeve and moves axially; The chuck wedge-shaped sleeve is slidingly matched through the wedge-shaped part of itself and the wedge-shaped slot of claw, so that claw along the chuck radial motion, tightens or unclamps workpiece.Owing to be not fixedly connected between piston and the chuck wedge-shaped sleeve, moving of chuck wedge-shaped sleeve is prone to produce radial deflection, so in order to guarantee precision; Be provided with the alignment pin that cooperates with chuck wedge-shaped sleeve and chuck, so complex structure, manufacture difficulty is big; Be difficult to install; And need regulate alignment pin every now and then when using, make troubles to use, profile is not attractive in appearance yet.
Summary of the invention
The purpose of the utility model provides a kind of compact conformation, good looking appearance, reliable operation, the post-tensioning automatic chuck that cost is low.
The technical scheme that realizes the utility model purpose is: a kind of post-tensioning automatic chuck, comprise the power voussoir of piston, cover plate, shell and band claw, and cover plate is fixedly connected with shell; Power voussoir and cover plate are slidingly matched; Piston is inlaid in the cavity between shell and the cover plate movably, and the front end of piston has the piston wedge, and this piston wedge is stuck in the skewed slot of power voussoir; Also comprise the pull bar attaching nut, this pull bar attaching nut is fixed in the piston through hold-down nut.
Further, described power voussoir is provided with T type groove, and described T type nut is contained in the T type groove, and described claw is fixedly connected with the power voussoir with screw through T type nut, and T type nut is provided with the protruding wing of joining with T type groove cunning.
After having adopted technique scheme, shell is fixedly connected through trip bolt with cover plate, and adopts a pull rod screw to be connected on the pull bar attaching nut; By an external piston-cylinder pull bar is moved to the left or to the right again, move to the left or to the right, make the claw clamping or unclamp workpiece thereby promote piston; This structure has just saved loaded down with trivial details air cavity design, makes and has also reduced cost by the utility model compact conformation; Good looking appearance, reliable operation.
Description of drawings
Fig. 1 is the sectional structure sketch map of the utility model.
The specific embodiment
For the content that makes the utility model is expressly understood more easily, below according to specific embodiment and combine accompanying drawing, the utility model is done further detailed explanation,
As shown in Figure 1, a kind of post-tensioning automatic chuck comprises the power voussoir 2 of piston 1, cover plate 6, shell 7 and band claw 5; Cover plate 6 is fixedly connected with shell 7, and power voussoir 2 is slidingly matched with cover plate 6, and piston 1 is inlaid in the cavity between shell 7 and the cover plate 6 movably; The front end of piston 1 has piston wedge 1-1; This piston wedge 1-1 is stuck in the skewed slot of power voussoir 2, also comprises pull bar attaching nut 8, and this pull bar attaching nut 8 is fixed in the piston 1 through hold-down nut 9.Described power voussoir 2 is provided with T type groove, and described T type nut 3 is contained in the T type groove, and described claw 5 is fixedly connected with power voussoir 2 with screw 4 through T type nut 3, and T type nut 3 is provided with the protruding wing of joining with T type groove cunning.
The operation principle of the utility model is following:
Utilize a pull rod screw to be connected on the pull bar attaching nut 8; When moving right through an external piston-cylinder pushing drawing rod; Move right thereby promote piston 1, make the piston wedge 1-1 propulsion power voussoir 2 of piston 1 peripheral mobile, thereby make claw 5 unclamp workpiece to chuck; When the piston-cylinder pushing drawing rod to left movement, thereby promote piston to left movement, the piston wedge 1-1 propulsion power voussoir 2 of piston 1 is moved to chuck hub, thus clamping work pieces.
Above-described specific embodiment; Purpose, technical scheme and beneficial effect to the utility model have carried out further explain, it should be understood that the above is merely the specific embodiment of the utility model; Be not limited to the utility model; All within the spirit and principle of the utility model, any modification of being made, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (2)
1. post-tensioning automatic chuck; The power voussoir (2) that comprises piston (1), cover plate (6), shell (7) and band claw (5); Cover plate (6) is fixedly connected with shell (7), and power voussoir (2) is slidingly matched with cover plate (6), and piston (1) is inlaid in the cavity between shell (7) and the cover plate (6) movably; The front end of piston (1) has piston wedge (1-1); This piston wedge (1-1) is stuck in the skewed slot of power voussoir (2), it is characterized in that: also comprise pull bar attaching nut (8), this pull bar attaching nut (8) is fixed in the piston (1) through hold-down nut (9).
2. post-tensioning automatic chuck according to claim 1; It is characterized in that: described power voussoir (2) is provided with T type groove; In the described T type groove T type nut (3) is housed; Described claw (5) is fixedly connected with power voussoir (2) with screw (4) through T type nut (3), and T type nut (3) is provided with the protruding wing of joining with T type groove cunning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205112325U CN202367227U (en) | 2011-12-09 | 2011-12-09 | Post-tensioning automatic chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205112325U CN202367227U (en) | 2011-12-09 | 2011-12-09 | Post-tensioning automatic chuck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202367227U true CN202367227U (en) | 2012-08-08 |
Family
ID=46590951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205112325U Expired - Fee Related CN202367227U (en) | 2011-12-09 | 2011-12-09 | Post-tensioning automatic chuck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202367227U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106041230A (en) * | 2016-08-17 | 2016-10-26 | 福建威而特旋压科技股份有限公司 | Clamp for thread machining of pipe-made belt wheel |
| CN106216714A (en) * | 2016-08-17 | 2016-12-14 | 福建威而特旋压科技股份有限公司 | Built-up jig for numerically controlled lathe |
| CN109396904A (en) * | 2018-10-20 | 2019-03-01 | 武汉雅虎光电设备有限公司 | A kind of Pneumatic flat tongs for miniature precision shaped piece |
| CN109732111A (en) * | 2019-02-28 | 2019-05-10 | 东莞市巨冈机械工业有限公司 | A kind of monodactyle air spider |
-
2011
- 2011-12-09 CN CN2011205112325U patent/CN202367227U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106041230A (en) * | 2016-08-17 | 2016-10-26 | 福建威而特旋压科技股份有限公司 | Clamp for thread machining of pipe-made belt wheel |
| CN106216714A (en) * | 2016-08-17 | 2016-12-14 | 福建威而特旋压科技股份有限公司 | Built-up jig for numerically controlled lathe |
| CN109396904A (en) * | 2018-10-20 | 2019-03-01 | 武汉雅虎光电设备有限公司 | A kind of Pneumatic flat tongs for miniature precision shaped piece |
| CN109732111A (en) * | 2019-02-28 | 2019-05-10 | 东莞市巨冈机械工业有限公司 | A kind of monodactyle air spider |
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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: 20120808 Termination date: 20141209 |
|
| EXPY | Termination of patent right or utility model |