CN202147026U - Through hole type automatic chuck - Google Patents
Through hole type automatic chuck Download PDFInfo
- Publication number
- CN202147026U CN202147026U CN201120184468U CN201120184468U CN202147026U CN 202147026 U CN202147026 U CN 202147026U CN 201120184468 U CN201120184468 U CN 201120184468U CN 201120184468 U CN201120184468 U CN 201120184468U CN 202147026 U CN202147026 U CN 202147026U
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- CN
- China
- Prior art keywords
- piston
- guide rod
- chamber
- shell
- cover plate
- 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
The utility model relates to a through hole type automatic chuck comprising a housing, a cover plate, a guide rod, a piston and a power wedge. The power wedge is slidably cooperated with the cover plate, and the piston is disposed in the housing. A first chamber is formed between the rear part of the piston and the housing, and a second chamber is formed between the front end of the piston and the cover plate. The piston is fixedly connected with the guide rod, and the front end of the piston is provided with a protruding wedge. The protruding wedge is clamped in an inclined groove of the power wedge, and a groove is disposed in the wall of the bottom of the housing correspondingly to the piston. The piston is provided with a protrusion with respect to the groove, and a through hole passing through the guide rod is disposed in the center of the guide rod. A first airway communicated with the first chamber and a second airway communicated with the second chamber are disposed in the guide rod. The through hole type automatic chuck provided in the utility model has advantages of big clamping force, long claw stroke, low costs and no accessories.
Description
Technical field
The utility model relates to lathe and uses the through-hole type automatic chuck.
Background technology
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, is difficult to install; And need regulate alignment pin every now and then when using, make troubles to use.Chinese patent CN201076923Y improves air spider, though bigger progress has been arranged, but still exist clamping force little, the short and inaesthetic shortcoming of profile of claw stroke.
Summary of the invention
The purpose clamping force of the utility model is big, the claw stroke is long, and need not annex, through-hole type automatic chuck that cost is low.
The technical scheme that realizes above-mentioned purpose is: a kind of through-hole type automatic chuck, comprise shell, cover plate, guide rod, piston and power voussoir, and the fast and cover plate of power wedge is slidingly matched; Piston is cased; Form first chamber between the rear portion of piston and the shell, form second chamber between the front end of piston and the cover plate, piston is fixedly connected with guide rod; The front end of piston has protruding wedge; This protruding wedge is stuck in the skewed slot of power voussoir, and the position recessing corresponding with piston on the base wall of shell has the convexity corresponding with this groove on the piston; The center of guide rod has the through hole that runs through guide rod; Have first air flue that is communicated with first chamber and second air flue that is communicated with second chamber on the guide rod.
Shell is fixedly connected through trip bolt with cover plate, and trip bolt stretches into shell and is screwed into cover plate from the bottom of shell.
Be provided with sealing ring between guide rod and the shell and between guide rod and the piston, also be provided with sealing ring between piston and the cover plate and between shell and the piston, to guarantee the sealing between first chamber and second chamber.
After adopting technique scheme; The position recessing corresponding with piston on the base wall of shell has the convexity corresponding with this groove on the piston, like this under the situation of same shell sizes; The stroke of piston just can extend; Thereby the stroke of elongated clamping jaw, and improved clamping force, thus improved operating efficiency.The utility model also has the advantage that reduces labor intensity, reduces production costs.In addition, have first air flue that is communicated with first chamber and second air flue that is communicated with second chamber on the guide rod, this structure need not at the guide rod place annex to be set again, greatly reduces cost.
Description of drawings
Fig. 1 is the sectional structure sketch map of the utility model.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is done further detailed explanation.
As shown in Figure 1, a kind of through-hole type automatic chuck comprises shell 3, cover plate 9, guide rod 7, piston 5 and power voussoir 6; Power wedge fast 6 is slidingly matched with cover plate 9, and piston 5 is contained in the shell 3, forms first chamber 11 between the rear portion of piston 5 and the shell 3; Form second chamber 4 between the front end of piston 5 and the cover plate 9; Piston 5 is fixedly connected with guide rod 7, and the front end of piston 5 has protruding wedge 5-2, and this protruding wedge 5-2 is stuck in the skewed slot of power voussoir 6; The position recessing 4-1 corresponding with piston 5 on the base wall of shell 4 has the protruding 5-1 corresponding with this groove 4-1 on the piston 5; The center of guide rod 7 has the through hole 8 that runs through guide rod; Have first air flue 1 that is communicated with first chamber 11 and second air flue 2 that is communicated with second chamber 4 on the guide rod 7.
As shown in Figure 1, be provided with sealing ring 10 between guide rod 7 and the shell 3 and between guide rod 7 and the piston 5, also be provided with sealing ring 10 between piston 5 and the cover plate 10 and between shell 3 and the piston 5, to guarantee the sealing between first chamber 11 and second chamber 4.
Claims (3)
1. through-hole type automatic chuck; Comprise shell (3), cover plate (9), guide rod (7), piston (5) and power voussoir (6), power wedge fast (6) is slidingly matched with cover plate (9), and piston (5) is contained in the shell (3); Form first chamber (11) between the rear portion of piston (5) and the shell (3); Form second chamber (4) between the front end of piston (5) and the cover plate (9), piston (5) is fixedly connected with guide rod (7), and the front end of piston (5) has protruding wedge (5-2); This protruding wedge (5-2) is stuck in the skewed slot of power voussoir (6), it is characterized in that:
A, the position recessing (4-1) corresponding with piston (5) on the base wall of shell (4) have the convexity (5-1) corresponding with this groove (4-1) on the piston (5);
The center of b, guide rod (7) has the through hole (8) that runs through guide rod;
Have first air flue (1) that is communicated with first chamber (11) and second air flue (2) that is communicated with second chamber (4) on c, the guide rod (7).
2. through-hole type automatic chuck according to claim 1 is characterized in that: shell (3) is fixedly connected through trip bolt with cover plate (9), and trip bolt stretches into shell (3) and is screwed into cover plate (9) from the bottom of shell (3).
3. through-hole type automatic chuck according to claim 1 and 2; It is characterized in that: be provided with sealing ring (10) between guide rod (7) and the shell (3) and between guide rod (7) and the piston (5); Also be provided with sealing ring (10) between piston (5) and the cover plate (10) and between shell (3) and the piston (5), to guarantee the sealing between first chamber (11) and second chamber (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120184468U CN202147026U (en) | 2011-06-02 | 2011-06-02 | Through hole type automatic chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120184468U CN202147026U (en) | 2011-06-02 | 2011-06-02 | Through hole type automatic chuck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202147026U true CN202147026U (en) | 2012-02-22 |
Family
ID=45588101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120184468U Expired - Fee Related CN202147026U (en) | 2011-06-02 | 2011-06-02 | Through hole type automatic chuck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202147026U (en) |
-
2011
- 2011-06-02 CN CN201120184468U patent/CN202147026U/en not_active Expired - Fee Related
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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: 20120222 Termination date: 20150602 |
|
| EXPY | Termination of patent right or utility model |