CN219336016U

CN219336016U - High-precision four-jaw chuck

Info

Publication number: CN219336016U
Application number: CN202320312753.0U
Authority: CN
Inventors: 宫成; 孙召坤; 隋永强; 赵新宇; 李锦�
Original assignee: Yantai Chengjin Machinery Manufacturing Co ltd
Current assignee: Yantai Chengjin Machinery Manufacturing Co ltd
Priority date: 2023-02-25
Filing date: 2023-02-25
Publication date: 2023-07-14
Anticipated expiration: 2033-02-25

Abstract

The utility model discloses a high-precision four-jaw chuck, which comprises: the four-jaw chuck comprises a four-jaw chuck body and a base, wherein the four-jaw chuck body is connected with the base through a high-strength bearing, four clamping jaws are connected to the four-jaw chuck body in a sliding manner, anti-slip teeth are arranged on clamping surfaces of the four clamping jaws, and four adjusting holes are formed in the surface of the four-jaw chuck body; four spacing grooves are formed in the bottom surface of the four-jaw chuck main body, and the four-jaw chuck main body is connected with the base in a clamping mode through the spacing grooves formed in the bottom surface and the clamping mechanism arranged in the base. The utility model discloses a mutually supporting between four-jaw chuck main part, base and the high strength bearing for four-jaw chuck main part can rotate on the base, thereby when the workman adjusts the clamping jaw of different positions, need not frequently change the orientation of self just can adjust the clamping jaw of four directions, so that the workman operates, thereby reaches the purpose that improves the centre gripping precision.

Description

High-precision four-jaw chuck

Technical Field

The utility model relates to the technical field of chucks, in particular to a high-precision four-jaw chuck.

Background

The four-jaw chuck is a manual four-jaw single-action chuck for a machine tool and consists of a disk body, four screw rods and a pair of jaws; each jaw of the four-jaw chuck is single-acting, a screw rod is arranged in each jaw, one screw rod can only be screwed to enable one jaw to move, automatic centering cannot be achieved, the four-jaw chuck is suitable for clamping irregular workpieces, and clamping force of the four-jaw chuck is large, so that clamping is firm.

The existing four-jaw chuck is directly fixed on a workbench surface and cannot move, so that a worker needs to constantly replace four jaws to accurately clamp the workpiece when clamping the workpiece, and the worker adjusts and clamps the jaws in the reverse direction, so that the phenomenon of loosening caused by inaccurate clamping of the jaws is often caused due to inconvenient operation, and finally the workpiece falls off during processing or the situation of processing deviation caused by loosening of the workpiece is caused.

Improvements to the above-described problems are needed to meet the needs.

Disclosure of Invention

The present utility model is directed to a high precision four-jaw chuck that solves the problems set forth in the background art described above.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a high precision four-jaw chuck, comprising: the four-jaw chuck comprises a four-jaw chuck body and a base, wherein the four-jaw chuck body is connected with the base through a high-strength bearing, four clamping jaws are connected to the four-jaw chuck body in a sliding manner, anti-slip teeth are arranged on clamping surfaces of the four clamping jaws, and four adjusting holes are formed in the surface of the four-jaw chuck body;

four spacing grooves are formed in the bottom surface of the four-jaw chuck main body, and the four-jaw chuck main body is connected with the base in a clamping mode through the spacing grooves formed in the bottom surface and the clamping mechanism arranged in the base.

Preferably, the four-jaw chuck body is rotatably connected with the base through a high-strength bearing.

Preferably, four of the clamping jaws are distributed on the four-jaw chuck body in polar axis.

Preferably, the positions of the four regulating holes and the positions of the four limiting grooves are in one-to-one correspondence with the positions of the four clamping jaws.

Preferably, the engagement mechanism includes: the connecting spring is arranged in the base, and one end of the connecting spring is connected with the bolt.

Preferably, the surface of bolt is connected with the plectrum perpendicularly, and the plectrum runs through the inside of base and extends to the surface of base, the laminating department inner wall of base and bolt is connected with the stopper perpendicularly, and the other end sliding connection of stopper is in the recess of the inside seting up of bolt.

Preferably, the bolt forms an elastic structure through connecting between the spring and the base, and the size of the bolt is matched with the size of the limit groove.

Compared with the prior art, the utility model has the beneficial effects that:

in summary, through the mutual cooperation among the four-jaw chuck main body, the base and the high-strength bearing, the four-jaw chuck main body can rotate on the base, so that when a worker adjusts clamping jaws at different positions, the clamping jaws at four directions can be adjusted without frequently changing the directions of the clamping jaws, the operation of the worker is facilitated, and the aim of improving the clamping accuracy is fulfilled; simultaneously, after the work piece is firmly clamped, through the mutually supporting between spacing groove, connecting spring, bolt, plectrum and the stopper for the elasticity of bolt accessible connecting spring inserts the inside in spacing groove, thereby makes four-jaw chuck main part fixed, rotates when preventing work piece processing.

Drawings

FIG. 1 is a schematic diagram of a front view structure of the present utility model;

FIG. 2 is a schematic side view of the present utility model;

FIG. 3 is a schematic view of the bottom structure of the body of the four-jaw chuck of the present utility model;

FIG. 4 is a schematic side sectional view of the present utility model;

fig. 5 is an enlarged schematic view of the structure of the present utility model at a.

In the figure: 1. a four-jaw chuck body; 2. a base; 3. a high strength bearing; 4. a clamping jaw; 5. anti-slip teeth; 6. an adjustment aperture; 7. a limit groove; 8. a connecting spring; 9. a plug pin; 10. a pulling piece; 11. and a limiting block.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, the present utility model provides a technical solution: a high precision four-jaw chuck, comprising: the four-jaw chuck comprises a four-jaw chuck body 1 and a base 2, wherein the four-jaw chuck body 1 is connected with the base 2 through a high-strength bearing 3, the four-jaw chuck body 1 is in rotary connection with the base 2 through the high-strength bearing 3, four clamping jaws 4 are slidably connected to the four-jaw chuck body 1, the four clamping jaws 4 are distributed on the four-jaw chuck body 1 in polar axis, anti-slip teeth 5 are arranged on clamping surfaces of the four clamping jaws 4, four adjusting holes 6 are further formed in the surface of the four-jaw chuck body 1, four limiting grooves 7 are formed in the bottom surface of the four-jaw chuck body 1, and the positions of the four adjusting holes 6 and the positions of the four limiting grooves 7 correspond to the positions of the four clamping jaws 4 one by one;

referring to fig. 1 to 5, the four-jaw chuck body 1 is connected with a base 2 by a locking mechanism provided inside the base 2 and a limit groove 7 provided on a bottom surface, the locking mechanism includes: the connecting spring 8, the bolt 9, plectrum 10 and stopper 11, connecting spring 8 sets up in the inside of base 2, and connecting spring 8's one end is connected with bolt 9, the surface of bolt 9 is connected with plectrum 10 perpendicularly, and plectrum 10 runs through the inside of base 2 and extends to the surface of base 2, the laminating department inner wall of base 2 and bolt 9 is connected with stopper 11 perpendicularly, and stopper 11's the other end sliding connection is in the recess of the inside seting up of bolt 9, constitute elastic structure between bolt 9 through connecting spring 8 and the base 2, and the size of bolt 9 and the size assorted of spacing groove 7.

Working principle: when the high-precision four-jaw chuck is used, firstly, a workpiece to be machined is placed on the four-jaw chuck main body 1, then a special locking key for the chuck is inserted into the interior of one adjusting hole 6, then the locking key is rotated to enable the clamping jaw 4 to move and clamp the workpiece, then the poking piece 10 is poked, the poking piece 10 drives the bolt 9 to move and squeeze the connecting spring 8, the bolt 9 can be moved out of the interior of the limiting groove 7, meanwhile, the four-jaw chuck main body 1 is rotated, the workpiece is sequentially inserted into the interiors of the remaining three adjusting holes 6 through the locking key, so that the four clamping jaw 4 can clamp the workpiece accurately, the four-jaw chuck main body 1 is reset after being rotated one circle, the bolt 9 can be automatically inserted into the interior of the limiting groove 7 to fix the four-jaw chuck main body 1, so that the rotation of the four-jaw chuck main body 1 is prevented, and the processing is convenient, namely the high-precision four-jaw chuck is characterized.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A high precision four-jaw chuck, comprising: the four-jaw chuck is characterized in that the four-jaw chuck body (1) is connected with the base (2) through a high-strength bearing (3), four clamping jaws (4) are connected to the four-jaw chuck body (1) in a sliding manner, anti-slip teeth (5) are arranged on clamping surfaces of the four clamping jaws (4), and four adjusting holes (6) are formed in the surface of the four-jaw chuck body (1);

four limit grooves (7) are formed in the bottom surface of the four-jaw chuck main body (1), and the four-jaw chuck main body (1) is connected with the base (2) in a clamping mode through the limit grooves (7) formed in the bottom surface and a clamping mechanism arranged in the base (2).

2. A high precision four-jaw chuck as claimed in claim 1, wherein: the four-jaw chuck body (1) is rotatably connected with the base (2) through a high-strength bearing (3).

3. A high precision four-jaw chuck as claimed in claim 1, wherein: four clamping jaws (4) are distributed on the four-jaw chuck main body (1) in a polar axis mode.

4. A high precision four-jaw chuck as claimed in claim 1, wherein: the positions of the four regulating holes (6) and the positions of the four limiting grooves (7) are in one-to-one correspondence with the positions of the four clamping jaws (4).

5. A high precision four-jaw chuck as claimed in claim 1, wherein: the engagement mechanism includes: the novel socket comprises a connecting spring (8), a plug pin (9), a poking piece (10) and a limiting block (11), wherein the connecting spring (8) is arranged in the base (2), and one end of the connecting spring (8) is connected with the plug pin (9).

6. The high precision four-jaw chuck as set forth in claim 5, wherein: the surface of bolt (9) is connected with plectrum (10) perpendicularly, and plectrum (10) run through the inside of base (2) and extend to the surface of base (2), the laminating department inner wall of base (2) and bolt (9) is connected with stopper (11) perpendicularly, and the other end sliding connection of stopper (11) is in the recess of seting up in bolt (9) inside.

7. The high precision four-jaw chuck as set forth in claim 5, wherein: the bolt (9) forms an elastic structure between the connecting spring (8) and the base (2), and the size of the bolt (9) is matched with the size of the limit groove (7).