Pneumatic clamp sleeve dismounting tool structure

Abstract

This utility model discloses a pneumatic clamp sleeve disassembly fixture structure, including: a worktable, a limit block, a first screw, a second screw, a piston, a sleeve, a wrench, a pressure ring fixture, and a pressure ring. The integrated design of this utility model streamlines the disassembly and assembly process, solves the problem of adapting temporary tools, and uses the pressure ring fixture and the inner hole of the sleeve as guides to ensure that there will be no deviation or jamming during operation. The installation and disassembly operations are simple, will not damage the parts, and are composed of conventionally machined parts and standard parts, resulting in low cost.

Description

Technical Field

[0001] This utility model belongs to the technical field of rail transit, specifically relating to a pneumatic clamp sleeve disassembly tooling structure. Background Technology

[0002] Pneumatic clamps are the actuators in subway vehicles. Currently, pneumatic clamps on the domestic market have similar structures, all consisting of a sleeve and a piston connection. Assembly and disassembly require special tooling; otherwise, safety accidents and component damage are likely to occur. Typically, to reduce clamp size, pneumatic clamps are designed with a compact structure. The piston and sleeve are connected by a retaining ring and a pressure ring, with the pressure ring threaded to the bottom of the piston. Because there are other parts inside the sleeve, the pressure ring cannot be designed with a conventional wrench position; only a few arc-shaped grooves are available for tightening or loosening. This leads to difficulties in disassembling and assembling the sleeve, low efficiency, and a high risk of damage to the sleeve, pressure ring, and grooves, as well as safety accidents.

[0003] Therefore, the existing pneumatic clamp sleeve disassembly tooling has the following disadvantages: 1. Using makeshift tools to disassemble and assemble the sleeve is difficult and inefficient; 2. It can easily cause damage to the sleeve pressure ring groove and safety accidents. Utility Model Content

[0004] The purpose of this utility model is to provide a pneumatic clamp sleeve disassembly fixture structure to solve the problems mentioned in the background art, such as the difficulty and low efficiency of temporary tool disassembly and assembly of sleeves, and the easy damage to the sleeve pressure ring groove and safety accidents.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pneumatic clamp sleeve disassembly fixture structure, comprising: Workbench; The limiting block is fixed to the worktable by the first screw; The second screw is threaded onto the limiting block; The piston is positioned on the limiting block by the second screw, and a circular boss is provided on the inner side of the bottom of the piston; A sleeve is fitted over the circular boss; A pressure ring is threaded to the circular boss and holds the sleeve in place by a retaining ring. A pressure ring fixture is snapped into the pressure ring and guided through the inner hole of the sleeve; A wrench is attached to the pressure ring fixture and can rotate the pressure ring to disassemble or assemble the sleeve.

[0006] Preferably, the bottom outer surface of the piston is provided with an arc-shaped groove that corresponds to and matches the position of the second screw.

[0007] Preferably, the circular boss on the inner side of the bottom of the piston protrudes upward, and the inner side of the circular boss is provided with an internal thread that matches the external thread of the pressure ring.

[0008] Preferably, the sleeve has an annular groove at the top of the circular boss, and the retaining ring is embedded in the annular groove.

[0009] Preferably, the top of the pressure ring is provided with a flange for pressing the retaining ring, and the inner side of the flange is provided with a quincunx-shaped central groove.

[0010] Preferably, the bottom of the pressure ring fixture is provided with a boss that matches the central groove of the pressure ring, and the top of the pressure ring fixture is provided with an external hexagon.

[0011] Preferably, the wrench is L-shaped, and the bottom of the wrench is provided with an inner hexagonal groove that is adapted to the outer hexagonal shape of the pressure ring fixture.

[0012] Compared with the prior art, this utility model provides a pneumatic clamp sleeve disassembly fixture structure, which has the following beneficial effects: 1. The integrated design of this utility model streamlines the disassembly and assembly process, solves the problem of adapting temporary tools, and uses the pressure ring tooling and the inner hole of the sleeve to guide and ensure that there will be no deviation or jamming during the operation. The installation and disassembly operation is simple, will not damage the parts, and is composed of conventionally processed parts and standard parts, with low cost. 2. This utility model effectively prevents piston rotation and avoids slippage during operation by positioning the second screw with the arc-shaped groove on the outer surface of the piston. 3. This utility model provides a special tool for disassembling pneumatic clamp sleeves, which significantly improves the speed of disassembly and assembly. All operations can be completed in one installation, reducing intermediate adjustments, lowering the skill requirements of operators, and shortening training time. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a front view schematic diagram of the overall structure of the pneumatic clamp sleeve disassembly tooling proposed in this utility model; Figure 2 This is a top view of the overall structure of the pneumatic clamp sleeve disassembly tooling proposed in this utility model; Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure at point AA; Figure 4 for Figure 3 Enlarged structural diagram at point B; Figure 5This is a top view of the pneumatic clamp sleeve before it is installed. Figure 6 This is a schematic diagram of the cross-sectional structure of the pneumatic clamp sleeve before it is installed. In the diagram: 1. Workbench; 2. Limiting block; 3. First screw; 4. Second screw; 5. Piston; 51. Arc-shaped groove; 52. Circular boss; 6. Sleeve; 7. Wrench; 8. Pressure ring fixture; 9. Pressure ring; 10. Retaining ring. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figures 1-6 This utility model provides a technical solution: a pneumatic clamp sleeve disassembly fixture structure, including: a worktable 1, a limiting block 2, a first screw 3, a second screw 4, a piston 5, a sleeve 6, a wrench 7, a pressure ring fixture 8, and a pressure ring 9.

[0016] Furthermore, the limiting block 2 is fixed to the worktable 1 by the first screw 3. The worktable 1 serves as a basic support platform. The second screw 4 is threaded onto the limiting block 2. The piston 5 is positioned on the limiting block 2 by the second screw 4. The bottom outer surface of the piston 5 is provided with an arc-shaped groove 51 that corresponds to and matches the position of the second screw 4. The second screw 4 is inserted into the arc-shaped groove 51 of the piston 5 to effectively prevent the piston from rotating. The bottom inner side of the piston 5 is provided with a circular boss 52, and the sleeve 6 is fitted over the circular boss 52.

[0017] Furthermore, the pressure ring 9 is threaded to the circular boss 52 and holds the sleeve 6 in place by the retaining ring 10. The circular boss 52 on the inner side of the bottom of the piston 5 protrudes upward. The inner side of the circular boss 52 is provided with an internal thread that matches the external thread of the pressure ring 9. The sleeve 6 is provided with an annular groove at the top of the circular boss 52. The retaining ring 10 is embedded in the annular groove. The top of the pressure ring 9 is provided with a flange for pressing the retaining ring 10. The inner side of the flange is provided with a plum blossom-shaped central groove.

[0018] Furthermore, the pressure ring fixture 8 is snapped into the pressure ring 9 and guided through the inner hole of the sleeve 6. The bottom of the pressure ring fixture 8 is provided with a boss that matches the central slot of the pressure ring 9, and the top of the pressure ring fixture 8 is provided with an external hexagon. The pressure ring fixture 8 is designed with a boss at the bottom that matches the pressure ring 9 and an external hexagonal structure at the top, which can serve as an intermediate part to drive the pressure ring 9 to rotate synchronously.

[0019] Furthermore, the wrench 7 is engaged with the pressure ring fixture 8 and can rotate the pressure ring 9 to disassemble or assemble the sleeve 6. The wrench 7 is L-shaped, and the bottom of the wrench 7 is provided with an inner hexagonal groove that matches the outer hexagonal shape of the pressure ring fixture 8. By turning the wrench 7, the pressure ring fixture 8 is rotated, thereby controlling the tightening or loosening of the pressure ring 9. The outer circle of the pressure ring fixture 8 is guided by the inner hole of the sleeve 6 to ensure operational stability.

[0020] The working principle and usage process of this utility model are as follows: A tooling structure is formed by the pressure ring 9, piston 5, sleeve 6, and retaining ring 10. When disassembly is required, the tooling structure is moved to the worktable as a whole. Two upward-extending second screws 4 are used to lock the piston 5 in the arc-shaped groove 51, restricting the piston 5 from rotating. The pressure ring tooling 8 is then inserted into the sleeve 6, and the boss at the bottom of the pressure ring tooling 8 is engaged in the central groove of the pressure ring 9. The outer circumference of the pressure ring tooling 8 is guided by the inner hole of the sleeve 6, preventing the pressure ring tooling 8 from flipping during operation. The pressure ring 9 can be rotated out by turning the wrench 7, thus completely disassembling the tooling structure. During assembly, the pressure ring tooling 8 is turned in the opposite direction by turning the wrench 7 to rotate the pressure ring 9. The disassembly and assembly process is simple, risk-free, and the entire tooling is simple to process and low in cost.

[0021] Although embodiments of the present invention 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 to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pneumatic tongs sleeve dismounting tool structure, characterized in that, include: Workbench (1); The limiting block (2) is fixed to the worktable (1) by the first screw (3); The second screw (4) is threaded onto the limiting block (2); The piston (5) is positioned on the limiting block (2) by the second screw (4), and a circular boss (52) is provided on the inner side of the bottom of the piston (5). A sleeve (6) is fitted over the circular boss (52); The pressure ring (9) is threaded to the circular boss (52) and is secured to the sleeve (6) by the retaining ring (10). The pressure ring fixture (8) is snapped into the pressure ring (9) and guided through the inner hole of the sleeve (6); A wrench (7) is attached to the pressure ring fixture (8) and can rotate the pressure ring (9) to disassemble or assemble the sleeve (6).

2. The pneumatic tongs sleeve dismounting tool structure according to claim 1, characterized in that: The bottom outer surface of the piston (5) is provided with an arc-shaped groove (51) that corresponds to and matches the position of the second screw (4).

3. The pneumatic tongs sleeve dismounting tool structure according to claim 1, characterized in that: The circular boss (52) on the inner side of the bottom of the piston (5) protrudes upward, and the inner side of the circular boss (52) is provided with an internal thread that matches the external thread of the pressure ring (9).

4. The pneumatic tongs sleeve dismounting tool structure according to claim 1, characterized in that: The sleeve (6) has an annular groove on the top of the circular boss (52), and the retaining ring (10) is embedded in the annular groove.

5. The pneumatic tongs sleeve dismounting tool structure according to claim 4, characterized in that: The top of the pressure ring (9) is provided with a flange for pressing the retaining ring (10), and the inner side of the flange is provided with a plum blossom-shaped central groove.

6. The pneumatic tongs sleeve dismounting tool structure according to claim 5, characterized in that: The bottom of the pressure ring fixture (8) is provided with a boss that matches the central groove of the pressure ring (9), and the top of the pressure ring fixture (8) is provided with an external hexagon.

7. The pneumatic tongs sleeve dismounting tool structure according to claim 6, characterized in that: The wrench (7) is L-shaped, and the bottom of the wrench (7) is provided with an inner hexagonal groove that is compatible with the outer hexagonal of the pressure ring fixture (8).

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