Pneumatic chuck capable of stably clamping

Abstract

The utility model relates to the field of clamping equipment, in particular to a pneumatic chuck capable of stably clamping, which is provided with a chuck body, a jaw disc is arranged on one side of the chuck body, a rear cover plate is arranged on the other side of the chuck body, a jaw component is arranged on the jaw disc, and a plurality of auxiliary roller mechanisms are arranged on the other side of the chuck body. The auxiliary rolling wheel mechanism comprises a rolling wheel frame and an auxiliary rolling wheel, one end of the rolling wheel frame is installed on the chuck body, and the auxiliary rolling wheel is installed at the other end of the rolling wheel frame and stretches into the inner side of an orifice of the center hole. According to the utility model, the auxiliary roller mechanism is additionally arranged on the rear cover plate of the chuck body, the roller extending into the central hole can ensure the stability of the steel pipe, and the roller on the roller frame can guide the steel pipe when the steel pipe is clamped, so that the steel pipe is positioned at the central position and is not eccentric, and stable clamping can be realized without increasing too much cost.

Description

Technical Field

[0001] The utility model relates to the technical field of clamping equipment, in particular to a pneumatic chuck for stable clamping. Background Art

[0002] In laser cutting, a pneumatic chuck is used for clamping and fixing a pipe. When in use, the pipe needs to be loaded into the chuck, and the pipe is fixed by clamping with the jaws. The pipe rotates synchronously with the chuck to ensure the cutting effect of the pipe.

[0003] Since the steel pipe is long and the clamping area of the jaws is small, in the prior art, the jaws are not very stable when clamping the steel pipe. Especially during laser cutting, the instability of the steel pipe will greatly affect the accuracy. In the prior art, a double-sided jaw structure is also adopted to ensure the stability of the steel pipe, but this structure requires two sets of jaws and driving structures, and the cost is almost doubled. Summary of the Utility Model

[0004] Aiming at the above problems, the purpose of the utility model is to provide a pneumatic chuck for stable clamping, which can ensure the stability of the steel pipe, guide the steel pipe to be in the central position without eccentricity.

[0005] In order to solve the above technical problems, the technical scheme adopted by the utility model is as follows: A pneumatic chuck for stable clamping has a chuck body. A jaw plate is provided on one side of the chuck body, and a rear cover plate is provided on the other side. A jaw assembly is provided on the jaw plate. A plurality of auxiliary roller mechanisms are provided on the other side of the chuck body. The auxiliary roller mechanism includes a roller frame and an auxiliary roller. One end of the roller frame is mounted on the chuck body, and the auxiliary roller is mounted on the other end of the roller frame and extends into the inner side of the orifice of the central hole.

[0006] In the above technical scheme, a roller frame mounting groove is provided on the rear cover plate, and the roller frame is arranged in the roller frame mounting groove.

[0007] In the above technical scheme, a long slot is provided at one end of the roller frame, and a plurality of mounting holes are provided in the roller frame mounting groove. The roller frame is fixed at the mounting holes by bolts.

[0008] In the above technical scheme, four auxiliary roller mechanisms are provided on the rear cover plate, and the auxiliary roller mechanisms are arranged in pairs.

[0009] In the above technical scheme, the two pairs of auxiliary roller mechanisms are arranged staggeredly in the axial direction.

[0010] In the above technical scheme, the roller frame extends through the cylinder bracket to the central hole, and a corresponding relief groove is provided on the cylinder bracket.

[0011] In the above technical solution, the auxiliary roller mechanism and the jaw assembly are arranged at the same position.

[0012] To sum up, the beneficial effects of adopting the technical solution of the present utility model compared with the traditional technical means are as follows: The present utility model is equipped with an auxiliary roller mechanism on the rear cover plate of the chuck body. The roller extending to the center hole can ensure the stability of the steel pipe, and the roller on the roller frame can guide the steel pipe during clamping so that it is in the center position without eccentricity. It can achieve stable clamping without increasing too much cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Through the following detailed description in conjunction with the drawings, the foregoing and other objects, features and advantages of the present utility model will become obvious.

[0014] Figure 1 is the front perspective schematic diagram of the present utility model;

[0015] Figure 2 is the rear perspective schematic diagram of the present utility model;

[0016] Figure 3 is Figure 2 the schematic diagram after removing the cylinder bracket;

[0017] Figure 4 is the perspective schematic diagram of the roller frame in the present utility model;

[0018] The reference numerals are as follows: 100, chuck body; 110, jaw plate; 120, rear cover plate; 121, roller frame mounting groove; 122, mounting hole; 130, center hole; 140, cylinder bracket; 141, relief groove; 200, jaw assembly; 300, auxiliary roller mechanism; 310, roller frame; 311, long slot; 320, auxiliary roller. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following is inspired by the ideal embodiments of the present utility model. Through the following description, relevant staff can make various changes and modifications without departing from the technical idea of the present utility model. The technical scope of the present utility model is not limited to the content in the specification, and must be determined according to the scope of the claims.

[0020] The present utility model will be further described with reference to the following drawings:

[0021] As Figures 1 to 4As shown in the figure, a pneumatic chuck with stable clamping has a chuck body 100. On one side of the chuck body 100, there is a jaw plate 110, and on the other side, there is a rear cover plate 120. A jaw assembly 200 is provided on the jaw plate 110. On the other side of the chuck body 100, there are multiple auxiliary roller mechanisms 300. The auxiliary roller mechanism 300 includes a roller frame 310 and an auxiliary roller 320. One end of the roller frame 310 is mounted on the chuck body 100, and the auxiliary roller 320 is mounted on the other end of the roller frame 310 and extends into the inner side of the orifice of the central hole 130.

[0022] A roller frame mounting groove 121 is provided on the rear cover plate 120, and the roller frame 310 is arranged in the roller frame mounting groove 121.

[0023] A long slot 311 is provided at one end of the roller frame 310. The roller frame mounting groove is provided with multiple mounting holes 122, and the roller frame 310 is fixed at the mounting holes 122 by bolts.

[0024] Four auxiliary roller mechanisms 300 are provided on the rear cover plate 120, and the auxiliary roller mechanisms 300 are arranged in pairs.

[0025] The two pairs of auxiliary roller mechanisms 300 are arranged staggeredly in the axial direction. The staggeredly arranged roller frames 310 can effectively prevent the auxiliary rollers 320 from affecting each other.

[0026] The roller frame 310 passes through the cylinder bracket 140 and extends to the central hole 130. A corresponding relief groove 141 is provided on the cylinder bracket.

[0027] The setting positions of the auxiliary roller mechanism 300 and the jaw assembly 200 are the same.

[0028] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A pneumatic chuck with stable clamping, having a chuck body, on one side of the chuck body there is a jaw plate, and on the other side there is a rear cover plate. The jaw plate is provided with a jaw assembly, and it is characterized in that: On the other side of the chuck body, there are multiple auxiliary roller mechanisms. Each auxiliary roller mechanism includes a roller frame and an auxiliary roller. One end of the roller frame is installed on the chuck body, and the auxiliary roller is installed on the other end of the roller frame and extends into the inner side of the orifice of the central hole.

2. The pneumatic chuck with stable clamping according to claim 1, characterized in that: There is a roller frame installation groove on the rear cover plate, and the roller frame is arranged in the roller frame installation groove.

3. The pneumatic chuck with stable clamping according to claim 2, wherein: One end of the roller frame is provided with an elongated hole, and the roller frame installation groove is provided with multiple installation holes. The roller frame is fixed at the installation holes through bolts.

4. The pneumatic chuck with stable clamping according to claim 1, characterized in that: There are four auxiliary roller mechanisms on the rear cover plate, and the auxiliary roller mechanisms are arranged in pairs of two.

5. The pneumatic chuck with stable clamping according to claim 1, wherein: The two pairs of auxiliary roller mechanisms are staggered in the axial direction.

6. The pneumatic chuck with stable clamping according to claim 1, characterized in that: The roller frame passes through the cylinder bracket and extends to the central hole, and a corresponding relief groove is provided on the cylinder bracket.

7. The pneumatic chuck with stable clamping according to claim 1, characterized in that: The setting positions of the auxiliary roller mechanism and the jaw assembly are the same.

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