A clamp for processing a sealing ring

By introducing a limiting mechanism into the sealing ring machining fixture, and utilizing the cooperation of slip rings and insert blocks, the problem of unstable clamping of sealing rings with different inner diameters was solved, and a stable clamping effect was achieved.

CN224295695UActive Publication Date: 2026-05-29SHEN ZHEN SHI HUI NENG DA JING MI CHI LUN YOU XIAN GONG SI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHEN ZHEN SHI HUI NENG DA JING MI CHI LUN YOU XIAN GONG SI
Filing Date
2025-07-16
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing sealing ring processing fixtures are not convenient for adjusting and controlling the clamping and limiting of sealing rings with different inner diameters, and the clamping is not stable enough and is prone to loosening.

Method used

By setting a limiting mechanism in the fixture, including a fixed ring, a slip ring, a guide block, an insert block, and a spring, the elasticity of the slip ring and the cooperation between the insert block and the slot are used to limit the worktable and the base, ensuring the stable sliding of the square tube, and thus clamping the sealing ring.

Benefits of technology

It achieves stable clamping and limiting of sealing rings with different inner diameters, avoids loosening, and improves the clamping stability of the sealing rings.

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Abstract

The utility model belongs to the field of clamp, concretely relates to a clamp for seal ring processing, including base, the inside of base is equipped with workbench through bearing, the inside sliding joint of workbench has square tube, square tube and base sliding joint, the lower end fixed connection of square tube has slide pin, slide pin and base sliding joint, the inside sliding joint of square tube has square pole, the upper end fixed connection of square pole has clamping plate, be provided with limit mechanism on workbench. The utility model discloses through the rotation workbench, makes square tube slide in workbench and base, further makes multiple square tubes move through square pole drive clamping plate, and through the clamping of clamping plate and seal ring inside, makes the device can hold the limit position to the seal ring of different inside circle diameter size.
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Description

Technical Field

[0001] This utility model relates to the field of fixture technology, specifically a fixture for processing sealing rings. Background Technology

[0002] Utility model patent CN218612890U discloses a fixture for processing sealing rings, including a base and several sliding seats arranged in a ring along the base. Each sliding seat is slidably connected to the base. A driving mechanism is provided in the base to move all the sliding seats towards the center of the base. A fixed seat is slidably connected to each sliding seat, and a clamping mechanism is connected to the fixed seat. The clamping mechanism is elastically connected to the fixed seat and is used to clamp and fix the sealing ring. An abutment component is connected between the fixed seat and the sliding seats to elastically abut against the fixed seat. In use, the sealing ring is placed in the center of the base, and the driving mechanism moves all the sliding seats towards the center of the base. The clamping mechanism elastically clamps and fixes the sealing ring, while the abutment component elastically abuts against the fixed seat, thus preventing damage to the sealing ring during clamping.

[0003] However, the device has certain shortcomings in use. It is not easy to adjust and control the clamping and limiting of sealing rings with different inner diameters, and the device is not stable enough after clamping the sealing ring, making it easy to loosen. Utility Model Content

[0004] The purpose of this utility model is to provide a clamp for processing sealing rings, which solves the problems that the device is not convenient to adjust and control for clamping and limiting sealing rings with different inner diameters, and the device is not stable enough after clamping the sealing rings and is prone to loosening.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a fixture for processing sealing rings, comprising a base, a worktable mounted inside the base via bearings, a square tube slidably connected inside the worktable, the square tube being slidably connected to the base, a sliding pin fixedly connected to the lower end of the square tube, the sliding pin being slidably connected to the base, a square rod slidably connected inside the square tube, a clamping plate fixedly connected to the upper end of the square rod, and a limit mechanism provided on the worktable.

[0006] Preferably, a retaining ring is fixedly connected to the outer side of the square tube, and the retaining ring is slidably connected to the worktable. The retaining ring limits the movement of the square tube.

[0007] Preferably, a protrusion is fixedly connected to the lower end of the clamping plate, and the protrusion contacts the worktable. By providing the protrusion, the friction between the clamping plate and the worktable is reduced.

[0008] Preferably, the limiting mechanism includes a fixed ring, a fixed ring fixedly connected to the outer side of the worktable, a sliding ring slidably connected to the outer side of the worktable, an insert block fixedly connected to the lower end of the sliding ring, and a spring provided on the outer side of the worktable. The spring's elasticity acts on the sliding ring, allowing the insert block to be inserted into a slot on the base, thus limiting the distance between the worktable and the base after rotation, limiting the sliding of the square tube to prevent loosening, and ensuring the sealing ring is stably clamped.

[0009] Preferably, a guide block is fixedly connected to the surface of the slip ring, and the guide block is slidably connected to the worktable. By setting the guide block, rotation between the slip ring and the worktable is prevented.

[0010] Preferably, the base has a slot inside, and the slot and the insert are slidably connected. The slot and the insert engage to allow rotation between the worktable and the base.

[0011] Preferably, one end of the spring is fixedly connected to the fixed ring, and the other end of the spring is fixedly connected to the slip ring. By setting the spring, the slip ring is elastically pressed downwards.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model allows the square tubes to slide within the worktable and base by rotating the worktable, thereby enabling multiple square tubes to move the clamping plate via the square rod. Furthermore, the clamping plate and the inner side of the sealing ring are in contact, allowing the device to clamp and limit the sealing rings with different inner diameters.

[0014] 2. This utility model uses the elastic action of a spring on the slip ring, which allows the insert block to be inserted into the slot on the base. This limits the distance between the worktable and the base after the worktable rotates, and limits the sliding of the square tube to prevent loosening. This also ensures that the sealing ring is clamped stably. Attached Figure Description

[0015] Figure 1 This is a perspective view of the overall structure of this utility model;

[0016] Figure 2 This utility model Figure 1 A sectional view;

[0017] Figure 3 This utility model Figure 2 A cross-sectional view of a square tube;

[0018] Figure 4 This utility model Figure 2 Enlarged view of point A.

[0019] In the diagram: 1. Base; 2. Workbench; 3. Square tube; 4. Sliding pin; 5. Retaining ring; 6. Square rod; 7. Clamping plate; 8. Protrusion; 9. Limiting mechanism; 91. Fixing ring; 92. Sliding ring; 93. Guide block; 94. Insertion block; 95. Spring. Detailed Implementation

[0020] 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.

[0021] Please see Figures 1-2 A fixture for processing sealing rings includes a base 1, a worktable 2 mounted inside the base 1 via bearings, a square tube 3 slidably connected inside the worktable 2, the square tube 3 and the base 1 being slidably connected, a sliding pin 4 fixedly connected to the lower end of the square tube 3, the sliding pin 4 and the base 1 being slidably connected, a retaining ring 5 fixedly connected to the outer side of the square tube 3, the retaining ring 5 and the worktable 2 being slidably connected, the retaining ring 5 limiting the square tube 3, a square rod 6 slidably connected inside the square tube 3, a clamping plate 7 fixedly connected to the upper end of the square rod 6, a protrusion 8 fixedly connected to the lower end of the clamping plate 7, the protrusion 8 contacting the worktable 2, the protrusion 8 reducing the friction between the clamping plate 7 and the worktable 2, and a limit mechanism 9 provided on the worktable 2.

[0022] Please see Figures 3-4 The limiting mechanism 9 includes a fixed ring 91, which is fixedly connected to the outer side of the worktable 2. A sliding ring 92 is slidably connected to the outer side of the worktable 2. A guide block 93 is fixedly connected to the surface of the sliding ring 92, and the guide block 93 is slidably connected to the worktable 2. By setting the guide block 93, rotation between the sliding ring 92 and the worktable 2 is prevented. An insert block 94 is fixedly connected to the lower end of the sliding ring 92. A slot is provided inside the base 1, and the slot and the insert block 94 are slidably connected. By setting the slot and the insert block 94 to cooperate, the movement between the worktable 2 and the base 1 is controlled. The worktable 2 is rotated, and a spring 95 is provided on the outer side. One end of the spring 95 is fixedly connected to the fixed ring 91, and the other end of the spring 95 is fixedly connected to the slip ring 92. By setting the spring 95, the slip ring 92 is elastically pressed downward. The spring 95 acts elastically on the slip ring 92, so that the insert block 94 can be inserted into the slot on the base 1. This limits the distance between the worktable 2 and the base 1 after rotation, and limits the sliding of the square tube 3 to prevent loosening. This also ensures that the sealing ring is clamped stably.

[0023] The specific implementation process of this utility model is as follows: In use, the sealing ring is placed on the workbench 2, and the sliding ring 92 is manually moved upward. The sliding ring 92 drives the insertion block 94 to move, so that the insertion block 94 is disengaged from the slot on the base 1. The sliding ring 92 moves and compresses the spring 95, so that the spring 95 is compressed. Then the workbench 2 is rotated. By rotating the workbench 2, the square tube 3 slides within the workbench 2 and the base 1. This causes multiple square tubes 3 to move through the square rod 6 and drive the clamping plate 7 to move. The clamping plate 7 is in contact with the inner side of the sealing ring, so that the device can clamp and limit the sealing rings with different inner diameters. Then the sliding ring 92 is released. The spring 95 acts elastically on the sliding ring 92, so that the insertion block 94 can be inserted into the slot on the base 1. This limits the distance between the workbench 2 and the base 1 after rotation, and limits the sliding of the square tube 3 to prevent loosening. This ensures that the sealing ring is clamped stably.

[0024] 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 fixture for processing sealing rings, comprising a base (1), characterized in that: The base (1) has a worktable (2) installed inside by bearings. A square tube (3) is slidably connected inside the worktable (2). The square tube (3) is slidably connected to the base (1). A sliding pin (4) is fixedly connected to the lower end of the square tube (3). The sliding pin (4) is slidably connected to the base (1). A square rod (6) is slidably connected inside the square tube (3). A clamping plate (7) is fixedly connected to the upper end of the square rod (6). A limit mechanism (9) is provided on the worktable (2).

2. The fixture for machining a sealing ring according to claim 1, characterized in that: A retaining ring (5) is fixedly connected to the outside of the square tube (3), and the retaining ring (5) is slidably connected to the worktable (2).

3. The fixture for machining a sealing ring according to claim 1, characterized in that: The lower end of the clamp (7) is fixedly connected to a protrusion (8), which is in contact with the workbench (2).

4. The fixture for machining a sealing ring according to claim 1, characterized in that: The limiting mechanism (9) includes a fixed ring (91), a fixed ring (91) is fixedly connected to the outside of the worktable (2), a sliding ring (92) is slidably connected to the outside of the worktable (2), an insert block (94) is fixedly connected to the lower end of the sliding ring (92), and a spring (95) is provided on the outside of the worktable (2).

5. A fixture for machining a sealing ring according to claim 4, characterized in that: The surface of the slip ring (92) is fixedly connected to a guide block (93), and the guide block (93) is slidably connected to the worktable (2).

6. A fixture for machining a sealing ring according to claim 4, characterized in that: The base (1) has a slot inside, and the slot and the plug (94) are slidably connected.

7. A fixture for machining a sealing ring according to claim 4, characterized in that: One end of the spring (95) is fixedly connected to the fixed ring (91), and the other end of the spring (95) is fixedly connected to the slip ring (92).