Machining clamp

By designing a machining fixture that combines a base, mounting plate, self-locking adjustment components, and clamping blocks, the problem of the limited shape of existing fixtures has been solved. This enables stable clamping of cylinders, hollow tubes, and rectangles, improving ease of use and adaptability.

CN224182873UActive Publication Date: 2026-05-01CHONGQING DIRUN MACHINERY MANUFACTURING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHONGQING DIRUN MACHINERY MANUFACTURING CO LTD
Filing Date
2025-04-22
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Existing machining fixtures have a single structural shape, which cannot adapt to workpieces of different shapes, resulting in the need for frequent fixture changes and inconvenience in use.

Method used

A machining fixture comprising a base, a mounting plate, a self-locking adjustment component, a chuck mounting component, and a clamping block is designed. The self-locking adjustment component adjusts the position of the mounting plate and the spacing of the chuck to achieve stable clamping of cylindrical, hollow tube, and rectangular objects. The clamping block can adapt to workpieces of different shapes.

Benefits of technology

It achieves stable clamping of workpieces of different shapes, reduces the frequency of fixture replacement, and improves the ease of use and adaptability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of machining clamps, and particularly relates to a machining clamp which comprises a base table. The mounting disc is movably arranged at one end part of the base table; the self-locking adjusting component is arranged between the base table and the mounting disc and used for adjusting and moving the position of the mounting disc and achieving self-locking stability; the chuck mounting component is arranged on the mounting disc; the clamping head is arranged on the clamping head mounting component, and is used for solving the problems that an existing common machining clamp is relatively single in clamping structure shape and cannot adapt to clamping structures in different shapes, so that when the structures in different shapes are clamped, different clamps need to be replaced for clamping, and the use is very inconvenient.
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Description

A machining fixture Technical Field

[0001] This utility model belongs to the field of machining fixture technology, specifically relating to a machining fixture. Background Technology

[0002] In the production process of shaft blanks, after the shaft blanks are manufactured by any of the methods such as forging, casting, rolling and metallurgy, the surface quality of the shaft blanks is poor and there is oxide scale. In order to facilitate the subsequent processing of the shaft blanks, surface sandblasting is often performed on the shaft blanks. When performing surface sandblasting on the shaft blanks, it is often necessary to use a fixture to clamp the ends of the shaft blanks and install them in the sandblasting box for sandblasting.

[0003] However, the machining fixtures commonly used today can only hold a limited range of structural shapes and cannot be adapted to hold different shapes. This means that different fixtures need to be changed when holding different shapes, which is very inconvenient. Summary of the Invention

[0004] Based on the problems mentioned in the background art above, this utility model provides a machining fixture to solve the problem that commonly used machining fixtures can only clamp a limited range of structural shapes and cannot be adapted to clamp different shapes of structures. This results in the need to change different fixtures when clamping different shapes of structures, which is very inconvenient to use.

[0005] The technical solution adopted in this utility model is as follows:

[0006] A machining fixture, comprising:

[0007] abutment;

[0008] Mounting plate, which is movably disposed at one end of the base;

[0009] A self-locking adjustment component is disposed between the base and the mounting plate, used to adjust the position of the movable mounting plate and self-lock for stability;

[0010] A clamp mounting component is disposed on a mounting plate;

[0011] A chuck is disposed on a chuck mounting component.

[0012] Based on the above technical solution, the present invention has made the following improvements:

[0013] Furthermore, one end of the base is disc-shaped and the other end is cylindrical, and the disc portion of the base is provided with an array of mounting holes.

[0014] Furthermore, a prism is provided at the center of the base, and a prism is provided at the center of one side of the mounting plate, with the prism being engaged in the prism hole.

[0015] Furthermore, the self-locking adjustment component includes a threaded portion and a locking plate. The threaded portion is disposed on the cylinder of the base, and a threaded ring is screwed into the threaded portion. Multiple levers are arranged in an array on the side of the threaded ring near the base plate. Multiple locking plates are disposed and disposed on the circumferential wall of the mounting plate by an array of screws. Each locking plate is provided with a locking groove, and each locking groove is engaged with the threaded ring.

[0016] Furthermore, the clamp mounting component includes a mounting groove disposed on one side of the mounting plate, a fixing plate disposed through the groove opening at one end of the mounting groove, a bidirectional screw rotatably disposed between one end of the mounting groove and the fixing plate, a handwheel disposed at one end of the bidirectional screw, and a sliding seat threaded into each of the two threaded bodies of the bidirectional screw with different directions of rotation.

[0017] Furthermore, the chuck includes a clamping block 1, and there are two clamping blocks 1, which are respectively installed on corresponding slides. The top and bottom sides of the clamping block 1 are both arc-shaped surfaces.

[0018] Furthermore, the clamp includes a second clamping block, the two ends of which are respectively connected and assembled with corresponding slides, and the side of the second clamping block facing away from the mounting plate is provided with an anti-slip groove.

[0019] The beneficial effects of this utility model are:

[0020] 1. By combining the base, mounting plate, self-locking adjustment component, clamp mounting component, and clamping block 1, the self-locking adjustment component stabilizes the mounting plate, and the two clamping blocks 1 are mounted on the clamp mounting component. The clamp mounting component can adjust the distance between the two clamping blocks 1. The inner arc-shaped walls of the two clamping blocks 1 can be used to clamp a cylinder, and the outer arc-shaped walls of the two clamping blocks 1 can be used to internally support and clamp a hollow tube, thereby achieving stable clamping of cylinders and hollow tubes.

[0021] 2. By combining the base, mounting plate, self-locking adjustment component, clamp mounting component, and clamping block two, the position of the mounting plate is adjusted and stabilized by the self-locking adjustment component. The clamping block two is installed on the clamp mounting component. In use, the rectangular body can be clamped between the corresponding clamping blocks two in the two clamps, thereby stabilizing the rectangular body. In the end, this clamp can be used to stabilize cylinders, hollow tubes, and rectangular bodies, and its clamping adaptability is wide. Attached Figure Description

[0022] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings;

[0023] Figure 1 is a structural diagram of a machining fixture according to this utility model;

[0024] Figure 2 is a structural diagram of a machining fixture according to this utility model;

[0025] Figure 3 is an exploded view of a machining fixture according to this utility model;

[0026] Figure 4 is an exploded view of a machining fixture according to this utility model.

[0027] Figure 5 shows the usage state of a machining fixture according to this utility model.

[0028] Figure 6 shows the second usage state of a machining fixture according to this utility model;

[0029] Figure 7 shows the usage state of a machining fixture according to this utility model;

[0030] Figure 8 is an installation diagram of a machining fixture according to this utility model.

[0031] The attached diagram is labeled as follows:

[0032] 101. Base; 102. Mounting plate; 103. Prism; 104. Prism hole; 201. Threaded part; 202. Threaded ring; 203. Lever handle; 204. Screw; 205. Clamping plate; 206. Clamping slot; 301. Mounting slot; 302. Fixing plate; 303. Double-acting screw; 304. Handwheel; 305. Slide; 4. Clamping block one; 5. Clamping block two; 6. Sandblasting machine body; 601. Assembly plate. Detailed Implementation

[0033] Example 1:

[0034] As shown in Figures 1 to 8, a machining fixture includes:

[0035] The base 101 has a disc-shaped end and a cylindrical end. The disc part of the base 101 is provided with multiple mounting holes. During assembly, bolts can be inserted into the mounting holes of the base 101 and the screw holes in the assembly disc 601 on the sandblasting machine body 6, so that the two bases 101 can be installed opposite each other on the two assembly discs 601 in the sandblasting machine body 6.

[0036] Referring to Figures 1 to 4, the mounting plate 102 is movably disposed at one end of the base 101. A prism hole 104 is provided at the center of the base 101, and a prism 103 is provided at the center of one side of the mounting plate 102. The prism 103 is engaged in the prism hole 104, thereby realizing the movable engagement of the mounting plate 102 with one end of the base 101 by the cooperation of the prism 103 and the prism hole 104.

[0037] A self-locking adjustment component is disposed between the base 101 and the mounting plate 102. The self-locking adjustment component includes a threaded part 201 and a locking plate 205. The threaded part 201 is disposed on the cylinder of the base 101. A screw ring 202 is screwed into the threaded part 201. Multiple levers 203 are arranged in an array on the side of the screw ring 202 near the plate of the base 101. By turning each lever 203, the screw ring 202 can be rotated and moved on the threaded part 201.

[0038] Multiple clamping plates 205 are provided and are respectively arranged on the circumferential wall of the mounting plate 102 by an array of screws 204. Each clamping plate 205 is provided with a groove 206, and each groove 206 is engaged with a screw ring 202. When the levers 203 are turned to make the screw ring 202 rotate and move on the threaded part 201, the screw ring 202 abuts against the side wall of the groove 206, thereby abutting the clamping plate 205 and driving the mounting plate 102 to move, thereby adjusting the position of the mounting plate 102. The screw ring 202 and the threaded part 201 have a self-locking function, so that the screw ring 202 will not rotate or move when it is not turned, thus keeping the mounting plate 102 stable.

[0039] A chuck mounting component is mounted on a mounting plate 102. The chuck mounting component includes a mounting groove 301 on one side of the mounting plate 102. A fixing plate 302 is provided through the groove opening at one end of the mounting groove 301. A bidirectional screw 303 is rotatably mounted between one end of the mounting groove 301 and the fixing plate 302. A handwheel 304 is provided at one end of the bidirectional screw 303. Slides 305 are threaded into the two threaded bodies of the bidirectional screw 303 with different helix directions. By rotating the handwheel 304, the bidirectional screw 303 can be rotated, so that the two slides 305 can move relatively closer / away on the corresponding threaded bodies of the bidirectional screw 303 to adjust the distance between the two slides 305.

[0040] Referring to Figures 1 to 6, the chuck is mounted on the chuck mounting component. The chuck includes two clamping blocks 4, which are respectively mounted on corresponding slides 305. The top and bottom sides of the clamping blocks 4 are arc-shaped surfaces. In use, the outer walls of both ends of the cylinder can be clamped between the inner arc-shaped walls of the two clamping blocks 4, thereby achieving stable clamping of the cylinder. Alternatively, the outer arc-shaped walls of the two clamping blocks 4 can be supported between the inner walls of both ends of the hollow tube, thereby achieving stable clamping of the hollow tube. Thus, the clamping blocks 4 can be used to achieve stable clamping of cylinders and hollow tubes.

[0041] Example 2:

[0042] Referring to Figures 1, 2, 3, 4 and 7, the clamp includes a second clamping block 5. The two ends of the second clamping block 5 are respectively connected and assembled with the corresponding slides 305. The side of the second clamping block 5 facing away from the mounting plate 102 is provided with an anti-slip groove. When it is necessary to clamp the rectangular body, the first clamping block 4 is removed from the slide 305, and then the two ends of the second clamping block 5 are respectively connected and assembled with the corresponding slides 305 in the fixture, so that the second clamping block 5 is assembled between the two slides 305 in the fixture. At this time, the rectangular body can be clamped between the side walls of the second clamping block 5 in the two fixtures with anti-slip grooves, thus completing the stable clamping of the rectangular body.

[0043] Ultimately, this fixture allows for stable clamping of cylinders, hollow tubes, and rectangular bodies by simply changing the chuck, without needing to replace the entire fixture, making it more convenient and faster to use.

[0044] The present invention has been described in detail above. The specific embodiments are provided only to help understand the method and core idea of ​​the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A machining fixture, characterized in that: include: Base (101); mounting plate (102), the mounting plate (102) being movably disposed at one end of the base (101); self-locking adjustment member, the self-locking adjustment member being disposed between the base (101) and the mounting plate (102), for adjusting the position of the movable mounting plate (102) and self-locking for stability; clamp mounting member, the clamp mounting member being disposed on the mounting plate (102); clamp, the clamp being disposed on the clamp mounting member.

2. The machining fixture according to claim 1, characterized in that: The base (101) is disc-shaped at one end and cylindrical at the other end, and the disc part of the base (101) is provided with a plurality of mounting holes in an array.

3. A machining fixture according to claim 2, characterized in that: A prism hole (104) is provided at the center of the base (101), and a prism (103) is provided at the center of one side of the mounting plate (102), and the prism (103) is fitted into the prism hole (104).

4. A machining fixture according to claim 2, characterized in that: The self-locking adjustment component includes a threaded part (201) and a locking plate (205). The threaded part (201) is disposed on the cylinder of the base (101). A threaded ring (202) is screwed into the threaded part (201). Multiple levers (203) are arranged in an array on the side of the threaded ring (202) near the base (101) disk. Multiple locking plates (205) are disposed and are respectively arranged in an array on the circumferential wall of the mounting disk (102) by screws (204). Each locking plate (205) is provided with a locking groove (206), and each locking groove (206) is locked onto the threaded ring (202).

5. A machining fixture according to claim 1, characterized in that: The clamp mounting component includes a mounting groove (301) on one side of the mounting plate (102). A fixing plate (302) is provided through the groove opening at one end of the mounting groove (301). A bidirectional screw (303) is rotatably provided between one end of the mounting groove (301) and the fixing plate (302). A handwheel (304) is provided at one end of the bidirectional screw (303). Slide seats (305) are threaded into the two threaded bodies of the bidirectional screw (303) with different directions of rotation.

6. A machining fixture according to claim 5, characterized in that: The chuck includes a clamping block (4), and there are two clamping blocks (4), which are respectively installed on the corresponding slide (305). The top and bottom sides of the clamping block (4) are both arc-shaped surfaces.

7. A machining fixture according to claim 5, characterized in that: The clamp includes a second clamping block (5), and the two ends of the second clamping block (5) are respectively connected and assembled with the corresponding slide (305). The side of the second clamping block (5) facing away from the mounting plate (102) is provided with an anti-slip groove.