CN212240046U - Back-pull type pneumatic chuck - Google Patents
Back-pull type pneumatic chuck Download PDFInfo
- Publication number
- CN212240046U CN212240046U CN202020566684.2U CN202020566684U CN212240046U CN 212240046 U CN212240046 U CN 212240046U CN 202020566684 U CN202020566684 U CN 202020566684U CN 212240046 U CN212240046 U CN 212240046U
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- piston
- chuck
- collet
- collet chuck
- base
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Abstract
The utility model discloses a back-pull type pneumatic chuck, including base, collet chuck, piston, bottom, the piston chamber that link up about lower extreme in the base is equipped with, the collet chuck chamber that link up about the upper end in the base is equipped with, and the piston chamber communicates with the collet chuck chamber each other, and piston chamber and the coaxial setting in collet chuck chamber, piston establish at the piston intracavity, and the collet chuck setting is in the collet chuck intracavity, the upper end of piston and the mutual fixed connection of lower extreme of collet chuck, and bottom fixed mounting is in the below of base, and the external diameter of the chuck of collet chuck is 75 mm. The utility model has the advantages that: the outer diameter of the chuck of the collet is set to be 75mm, and the load and the space of a machine table are reduced by reducing the outer diameter of the chuck of the collet; the stroke of the piston is set to be 6mm, so that a user can adjust the range of the opening and clamping stroke according to an application scene; the clamping precision can be more stable by adopting a back-pull type structure.
Description
Technical Field
The utility model belongs to the technical field of the lathe centre gripping equipment and specifically relates to a pneumatic chuck of back-pull formula is related to.
Background
The traditional clamping mode of the round bar stock comprises a chuck, a three-piece spring chuck, a chuck type mandrel, a hydraulic mandrel and the like. The traditional clamping mode has the advantages of reliable clamping, large clamping range and low requirement on the shape of a workpiece, but the workpiece is easily damaged due to mechanical clamping. The expanding mandrel belongs to elastic fastening and adopts a mode of clamping a workpiece by a hole. With the development of science and technology, the clamp holders of pneumatic and electric machines, the clamp holders of mechanical arms and the like begin to adopt the modes of hydraulic and pneumatic clamping of workpieces, and the original clamping method is improved.
However, the conventional pneumatic chuck has a large outer diameter and an excessive weight, and thus has a large load on automation equipment for small workpieces.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an it is not enough to overcome above-mentioned condition, provides a technical scheme that can solve above-mentioned problem.
The utility model provides a pull-back formula pneumatic chuck, includes base, collet chuck, piston, bottom, the lower extreme in the base is equipped with the piston chamber that link up from top to bottom, the upper end in the base is equipped with the collet chuck chamber that link up from top to bottom, piston chamber and collet chuck chamber communicate each other, piston chamber and collet chuck chamber coaxial arrangement, the piston is established in the piston chamber, the collet chuck sets up in the collet chuck intracavity, the upper end of piston and the lower extreme mutual fixed connection of collet chuck, bottom fixed mounting is in the below of base, the external diameter of the chuck of collet chuck is 75 mm.
As a further aspect of the present invention: the piston stroke in the piston chamber is 6 mm.
As a further aspect of the present invention: the chuck of the collet chuck is a 3-jaw chuck.
As a further aspect of the present invention: the outer side of the lower end of the base is provided with a first air inlet hole and a second air inlet hole, the first air inlet hole is communicated with the upper end of the piston cavity, and the second air inlet hole is communicated with the lower end of the piston cavity.
As a further aspect of the present invention: the inner edge of the upper end of the collet chuck cavity is provided with a chamfer, and the outer side surface of the upper end of the collet chuck is matched with the chamfer.
Compared with the prior art, the beneficial effects of the utility model are that: the outer diameter of the chuck of the collet is set to be 75mm, and the load and the space of a machine table are reduced by reducing the outer diameter of the chuck of the collet; the stroke of the piston is set to be 6mm, so that a user can adjust the range of the opening and clamping stroke according to an application scene; the clamping precision can be more stable by adopting a back-pull type structure.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic sectional structure diagram of the present invention.
Fig. 2 is a schematic sectional structure view of the base.
Fig. 3 is a schematic sectional structure view of the piston.
Shown in the figure: 1. a base; 11. a piston cavity; 12. a collet cavity; 13. oblique angle; 2. a collet; 3. a piston; 4. a bottom cover; 5. a first air intake hole; 6. a second air intake hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, a pull-back pneumatic chuck includes a base 1, a collet 2, a piston 3, and a bottom cap 4, wherein a piston cavity 11 is formed at a lower end of the base 1, a collet cavity 12 is formed at an upper end of the base 1, the piston cavity 11 is communicated with the collet cavity 12, the piston cavity 11 is coaxial with the collet cavity 12, the piston 3 is disposed in the piston cavity 11, the collet 2 is disposed in the collet cavity 12, the upper end of the piston 3 is fixedly connected with a lower end of the collet 8, the bottom cap 4 is fixedly mounted below the base 1, and an outer diameter of a chuck of the collet 8 is 75 mm.
As a further aspect of the present invention: the stroke of the piston 3 in the piston chamber 11 is 6 mm.
As a further aspect of the present invention: the collet of the collet 8 is a 3-jaw collet.
As a further aspect of the present invention: the outer side of the lower end of the base 1 is provided with a first air inlet hole 5 and a second air inlet hole 6, the first air inlet hole 5 is communicated with the upper end of the piston cavity 11, and the second air inlet hole 6 is communicated with the lower end of the piston cavity 11.
As a further aspect of the present invention: the inner edge of the upper end of the collet cavity 12 is provided with a chamfer 13, and the outer side surface of the upper end of the collet 2 is matched with the chamfer 13.
The utility model discloses a theory of operation is: when the device works, a workpiece is placed in the collet chuck 2, air pressure enters the upper part of the piston cavity 11 through the first air inlet hole 5, and the piston 3 is driven by the air pressure to move downwards in the piston cavity 11 so that the collet chuck 2 clamps the workpiece; after the work is finished, air pressure enters the lower part of the piston cavity 11 through the second air inlet hole 6, and the air pressure drives the piston 3 to move upwards in the piston cavity 11 so that the collet chuck 2 loosens the workpiece.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (5)
1. A pull-back pneumatic chuck, comprising: the collet chuck comprises a base, a collet chuck, a piston and a bottom cover, wherein a piston cavity which is communicated from top to bottom is formed in the lower end in the base, a collet chuck cavity which is communicated from top to bottom is formed in the upper end in the base, the piston cavity and the collet chuck cavity are communicated with each other, the piston cavity and the collet chuck cavity are coaxially arranged, the piston is arranged in the piston cavity, the collet chuck is arranged in the collet chuck cavity, the upper end of the piston and the lower end of the collet chuck are fixedly connected with each other, the bottom cover is fixedly arranged below the base.
2. A pull-back pneumatic chuck according to claim 1, wherein: the piston stroke in the piston chamber is 6 mm.
3. A pull-back pneumatic chuck according to claim 1, wherein: the chuck of the collet chuck is a 3-jaw chuck.
4. A pull-back pneumatic chuck according to claim 1, wherein: the outer side of the lower end of the base is provided with a first air inlet hole and a second air inlet hole, the first air inlet hole is communicated with the upper end of the piston cavity, and the second air inlet hole is communicated with the lower end of the piston cavity.
5. A pull-back pneumatic chuck according to claim 1, wherein: the inner edge of the upper end of the collet chuck cavity is provided with a chamfer, and the outer side surface of the upper end of the collet chuck is matched with the chamfer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020566684.2U CN212240046U (en) | 2020-04-16 | 2020-04-16 | Back-pull type pneumatic chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020566684.2U CN212240046U (en) | 2020-04-16 | 2020-04-16 | Back-pull type pneumatic chuck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212240046U true CN212240046U (en) | 2020-12-29 |
Family
ID=74001839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020566684.2U Active CN212240046U (en) | 2020-04-16 | 2020-04-16 | Back-pull type pneumatic chuck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212240046U (en) |
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2020
- 2020-04-16 CN CN202020566684.2U patent/CN212240046U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |