A bush press pad clamp

By designing a bushing press-fit gasket fixture and utilizing structures such as positioning pins, limit posts, and magnetic components, the problem of gaskets falling off after bushing press-fitting was solved, achieving efficient and low-cost bushing and gasket riveting.

CN224488262UActive Publication Date: 2026-07-14SHANGHAI ZHONGLI INVESTMENT

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI ZHONGLI INVESTMENT
Filing Date
2025-08-14
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

The existing fixtures are prone to detaching the gaskets after the bushings are pressed in, which increases labor and equipment costs and reduces efficiency.

Method used

A bushing press-fitting gasket fixture was designed, which combines a locating pin group, a limiting post, a connecting post and a magnetic component to achieve a stable riveting connection between the bushing and the gasket. The gasket is firmly fixed by the cooperation of the wedge rib and the punch riveting head.

Benefits of technology

This achieves a secure riveting connection between the bushing and the gasket, reducing manpower and material input, lowering manufacturing costs, and improving efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to a bushing press-fitting gasket fixture, belonging to the field of automotive parts technology. A base is located at the center of the top surface of a base plate, and a locating pin assembly is located on the top surface of the base. Limiting posts are symmetrically arranged along the center of the base plate. The end of the limiting post away from the base plate is connected to the bottom surface of a top plate. A first connecting plate is fixedly connected to the bottom surface of the top plate. A riveting head is located at the center of the bottom surface of the first connecting plate. Multiple connecting posts are arranged around the end of the riveting head away from the first connecting plate. The connecting posts are slidably connected to a second connecting plate. The locating pin assembly includes a central locating pin located at the center of the top surface of the base. The riveting head and the central locating pin are on the same vertical axis. Multiple punching heads are located at the end of the riveting head away from the first connecting plate. This utility model solves the problem of weak riveting between the bushing and the gasket, causing the gasket to fall off. A single fixture integrates riveting and punching functions, saving manpower and resources, and reducing manufacturing costs.
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Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, and in particular to a bushing press-fitting gasket fixture. Background Technology

[0002] With the rapid development of the automotive industry, the manufacturing of automotive parts requires tooling fixtures to play a crucial role in the parts manufacturing process to improve efficiency and reduce labor costs. During bushing processing, gaskets need to be pressed in. However, with existing fixtures, some gaskets detach before vehicle assembly after pressing. Using two fixtures for pressing increases labor and equipment costs and reduces efficiency. Utility Model Content

[0003] To address the issue that some gaskets may fall off before vehicle assembly after pressing with existing fixtures, and that using two fixtures for pressing would increase labor and equipment costs and reduce efficiency, a bushing pressing gasket fixture is proposed.

[0004] The technical solution of this utility model is as follows: a bushing press-fitting gasket fixture, including a base plate, a base provided at the center of the top surface of the base plate, a positioning pin assembly provided on the top surface of the base plate, a limiting post provided on the top surface of the base plate, the limiting post being symmetrically arranged along the center of the base plate, the end of the limiting post away from the base plate being connected to the bottom surface of the top plate, the bottom surface of the top plate being fixedly connected to a first connecting plate, a rivet head provided at the center of the bottom surface of the first connecting plate, a plurality of connecting posts being provided around the end of the rivet head away from the first connecting plate, the connecting posts being slidably connected to a second connecting plate, the positioning pin assembly including a central positioning pin, the central positioning pin being located at the center of the top surface of the base, the rivet head and the central positioning pin being on the same vertical axis; the end of the rivet head away from the first connecting plate being provided with a plurality of punching heads.

[0005] Preferably, the positioning pin group further includes side positioning pins, which are symmetrically arranged along the center of the base. The surface of the base is provided with a groove, and the center positioning pin and the side positioning pin are inserted into the groove.

[0006] Preferably, the limiting post includes an upper limiting post and a lower limiting post. The lower limiting post has a connector at the end away from the bottom plate, and the upper limiting post has a slot at the end away from the top plate. The connector of the lower limiting post is inserted into the slot of the upper limiting post.

[0007] Preferably, the connecting post is cylindrical, and the diameter of the end of the connecting post away from the first connecting plate is larger than the diameter of the connecting post body. The second connecting plate is provided with a circular hole at a position corresponding to the connecting post, which matches the diameter of the connecting post body. The connecting post body slides through the circular hole.

[0008] Preferably, an elastic element is sleeved on the connecting post between the first connecting plate and the second connecting plate.

[0009] Preferably, the rivet head includes a rivet head seat and a protrusion. One end of the rivet head seat is fixedly connected to a first connecting plate, and the end of the rivet head seat away from the first connecting plate is provided with a protrusion. A wedge-shaped rib is provided at the connection between the rivet head seat and the protrusion, and the position of the wedge-shaped rib corresponds to the position of the rivet claw of the gasket.

[0010] Preferably, the rivet head seat has multiple insertion holes near the wedge-shaped rib, and the rivet head is inserted into the insertion holes.

[0011] Preferably, the second connecting plate has a plurality of magnetic elements for adsorbing the pads on the side away from the first connecting plate.

[0012] The beneficial effects of this utility model are as follows: This utility model provides a bushing press-fit gasket fixture, which solves the problem of the bushing and gasket not being firmly connected after riveting, and the gasket falling off. One fixture integrates two functions: riveting and punching, saving manpower and material resources, and reducing manufacturing costs. Attached Figure Description

[0013] Figure 1 This is a perspective view of the bushing press-fit gasket clamp of this utility model;

[0014] Figure 2 This is an exploded perspective view of the bushing press-fit gasket fixture of this utility model;

[0015] Figure 3 These are the front view and bottom view of the riveting head of this utility model;

[0016] Figure 4 This is an exploded perspective view of the second connecting plate of this utility model;

[0017] Figure 5 This is a perspective view of the bushing and gasket of this utility model;

[0018] Figure 6 This is a perspective view of the working state of the bushing press-fit gasket fixture of this utility model.

[0019] The component names corresponding to the various reference numerals in the diagram are as follows:

[0020] 1. Base plate; 2. Base; 3. Locating pin assembly; 31. Center locating pin; 32. Side locating pin; 4. Limiting post; 41. Upper limiting post; 42. Lower limiting post; 5. Top plate; 6. First connecting plate; 7. Press riveting head; 71. Punch riveting head; 72. Press riveting head seat; 73. Protrusion; 74. Wedge rib; 8. Connecting post; 81. Elastic element; 9. Second connecting plate; 91. Magnetic element; 10. Gasket; 101. Riveting claw; 11. Bushing. Detailed Implementation

[0021] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. This embodiment is based on the technical solution of the present invention and provides detailed implementation methods and specific operating procedures; however, the scope of protection of the present invention is not limited to the following embodiments.

[0022] refer to Figure 1 , 2 As shown in the embodiment of this application, a bushing press-fitting gasket fixture is disclosed, including a base plate 1, a base 2 at the center of the top surface of the base plate 1, a positioning pin group 3 on the top surface of the base 2, and a limiting post 4 on the top surface of the base plate 1. In this embodiment, there are two limiting posts 4, which are symmetrically arranged along the center of the top surface of the base plate 1. The end of the limiting post 4 away from the base plate 1 is connected to the bottom surface of a top plate 5. The bottom surface of the top plate 5 is fixedly connected to a first connecting plate 6 by a cylindrical pin. A rivet head 7 is provided at the center of the bottom surface of the first connecting plate 6. The rivet head 7 is located away from the first connecting plate 6. Multiple connecting posts 8 are provided around the end of the plate. In this embodiment, there are 4 connecting posts 8. The column body of the connecting post 8 is slidably connected to the second connecting plate 9. The positioning pin group 3 includes a central positioning pin 31, which is located at the center of the top surface of the base 2. The pressing head 7 and the central positioning pin 31 are on the same vertical axis. Multiple punching heads 71 ​​are provided at the end of the pressing head 7 away from the first connecting plate 6. The punching heads 71 ​​apply pressure to the inner tube of the bushing 11, squeezing the inner tube to hold the gasket 10, thus avoiding the risk of the gasket 10 falling off after riveting.

[0023] The positioning pin group 3 also includes a side positioning pin 32, which is symmetrically arranged along the center of the base 2. The surface of the base 2 is provided with a groove, and the center positioning pin 31 and the side positioning pin 32 are inserted into the groove. The center positioning pin 31 and the side positioning pin 32 can determine the assembly position of the bushing 11 and stabilize the bushing 11 to prevent it from shaking, which facilitates the assembly of the gasket 10.

[0024] The limiting post 4 includes an upper limiting post 41 and a lower limiting post 42. The lower limiting post 42 has connectors at both ends. The upper limiting post 41 has a connector groove at the end furthest from the top plate 5, and a connector at the other end. The connector at the end of the lower limiting post 42 furthest from the bottom plate 1 is inserted into the connector groove of the upper limiting post 41, and the connector at the end of the lower limiting post 42 furthest from the upper limiting post 41 is inserted into the socket of the bottom plate 1. The connector at the end of the upper limiting post 41 furthest from the lower limiting post 42 is inserted into the socket of the top plate 5. The upper limiting post 41 and the lower limiting post 42 serve a limiting function, preventing improper pressing and damage to the gasket 10 and bushing 11.

[0025] The connecting post 8 is cylindrical. One end of the connecting post 8 is fixedly connected to the first connecting plate 6 by a thread. The diameter of the end of the connecting post 8 away from the first connecting plate 6 is larger than the diameter of the post body. The second connecting plate 9 has a circular hole corresponding to the diameter of the connecting post 8, which matches the diameter of the post body. The post body slides through the circular hole. The increased end diameter prevents the connecting post 8 from falling off when the second connecting plate 9 slides.

[0026] An elastic element 81 is fitted on the connecting post 8 between the first connecting plate 6 and the second connecting plate 9. The elastic element 81 can be a spring. After pressing, the elastic element 81 pops the product out to avoid difficulty in picking it up.

[0027] refer to Figure 3 As shown, the press head 7 includes a press head seat 72 and a protrusion 73. One end of the press head seat 72 is fixedly connected to the first connecting plate 6. The end of the press head seat 72 away from the first connecting plate 6 is provided with the protrusion 73. Two wedge-shaped ribs 74 are provided at the connection between the press head seat 72 and the protrusion 73. The position of the wedge-shaped ribs 74 corresponds to the position of the rivet claws 101 of the gasket 10. During press fitting, the wedge-shaped ribs 74 abut against the rivet claws 101. The wedge-shaped ribs 74 can bend the rivet claws 101 of the gasket 10 and rivet them onto the bushing 11.

[0028] The rivet head seat 72 has multiple insertion holes near the wedge rib 74, and the rivet head 71 is inserted into the insertion holes. In this embodiment, each wedge rib 74 has two insertion holes, and each insertion hole corresponds to one rivet head 71.

[0029] refer to Figure 4 As shown, the second connecting plate 9 is provided with a plurality of magnetic elements 91 on the side away from the first connecting plate 6. The magnetic elements 91 can be magnets. The magnetic elements 91 are used to attract the gasket 10 and prevent the gasket 10 from being misaligned with the inner tube of the bushing 11.

[0030] The specific working method is as follows:

[0031] refer to Figure 5 , 6 As shown, first, install the fixture onto the equipment, ensuring that the fixture is coaxial with the equipment to prevent damage to the equipment.

[0032] 2. Turn on the power, manually switch the device on and off, and adjust the device parameters.

[0033] 3. The equipment rises and the clamps open. First, the gasket 10 is attached to the second connecting plate 9 of the clamp.

[0034] Fourth, place the bushing 11 on the fixture base 2. The positioning pin group 3 can prevent misalignment.

[0035] 5. With both hands activated, the closing switch is activated and the equipment automatically presses the gasket. The wedge rib 74 abuts against the riveting claw 101 of the gasket 10. The wedge rib 74 bends the riveting claw 101 and rivets it onto the bushing 11. At the same time as riveting, the clamp punch 71 applies pressure to the inner tube of the bushing 11, squeezing the inner tube to hold the gasket 10 in place.

[0036] VI. The equipment rises automatically, and the ejector elastic element 81 will eject the product simultaneously as the equipment rises.

[0037] 7. Remove the pressed product with one hand; the entire pressing process is now complete.

[0038] The beneficial effects are:

[0039] This utility model provides a bushing press-fit gasket fixture that solves the problem of the bushing 11 and gasket 10 not being securely connected after riveting, and the gasket 10 falling off. One fixture integrates riveting and punching functions, saving manpower and resources, and reducing manufacturing costs.

[0040] It should be noted that the terms "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. "A plurality of" means two or more. "Installed," "connected," and "joined" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection.

[0041] The above description is merely a preferred embodiment of this utility model and is not intended to limit this utility model in any form or substance. It should be noted that those skilled in the art can make various improvements and additions without departing from this utility model, and these improvements and additions should also be considered within the protection scope of this utility model. Any modifications, alterations, and equivalent changes made by those skilled in the art without departing from the spirit and scope of this utility model using the disclosed technical content are equivalent embodiments of this utility model. Furthermore, any modifications, alterations, and evolutions made to the above embodiments based on the essential technology of this utility model are still within the scope of the technical solution of this utility model.

Claims

1. A bushing press-fitting gasket fixture, characterized in that, The base includes a base plate (1), a base (2) is provided at the center of the top surface of the base plate (1), a positioning pin group (3) is provided on the top surface of the base (2), a limiting post (4) is provided on the top surface of the base plate (1), the limiting post (4) is symmetrically arranged along the center of the base plate (1), the end of the limiting post (4) away from the base plate (1) is connected to the bottom surface of the top plate (5), the bottom surface of the top plate (5) is fixedly connected to the first connecting plate (6), a rivet head (7) is provided at the center of the bottom surface of the first connecting plate (6), a plurality of connecting posts (8) are provided around the end of the rivet head (7) away from the first connecting plate, the connecting post (8) is slidably connected to the second connecting plate (9), the positioning pin group (3) includes a central positioning pin (31), the central positioning pin (31) is located at the center of the top surface of the base (2), the rivet head (7) and the central positioning pin (31) are on the same vertical axis; a plurality of punching heads (71) are provided at the end of the rivet head (7) away from the first connecting plate (6).

2. The bushing press-fit gasket fixture according to claim 1, characterized in that, The positioning pin group (3) also includes a side positioning pin (32), which is symmetrically arranged along the center of the base (2). The surface of the base (2) is provided with a groove, and the center positioning pin (31) and the side positioning pin (32) are inserted into the groove.

3. The bushing press-fit gasket fixture according to claim 1, characterized in that, The limiting post (4) includes an upper limiting post (41) and a lower limiting post (42). The lower limiting post (42) has a plug at one end away from the bottom plate (1), and the upper limiting post (41) has a plug groove at one end away from the top plate (5). The plug of the lower limiting post (42) is inserted into the plug groove of the upper limiting post (41).

4. The bushing press-fit gasket fixture according to claim 1, characterized in that, The connecting column (8) is cylindrical. The diameter of the end of the connecting column (8) away from the first connecting plate (6) is larger than the diameter of the column body. The second connecting plate (9) has a circular hole at the corresponding position of the connecting column (8) that matches the diameter of the column body. The column body of the connecting column (8) slides through the circular hole.

5. The bushing press-fit gasket fixture according to claim 1, characterized in that, An elastic element (81) is sleeved on the connecting post (8) between the first connecting plate (6) and the second connecting plate (9).

6. The bushing press-fit gasket fixture according to claim 1, characterized in that, The rivet head (7) includes a rivet head seat (72) and a protrusion (73). One end of the rivet head seat (72) is fixedly connected to the first connecting plate (6). The end of the rivet head seat (72) away from the first connecting plate (6) is provided with a protrusion (73). A wedge-shaped rib (74) is provided at the connection between the rivet head seat (72) and the protrusion (73). The position of the wedge-shaped rib (74) corresponds to the position of the rivet claw (101) of the gasket (10).

7. The bushing press-fit gasket fixture according to claim 6, characterized in that, The rivet head seat (72) has multiple insertion holes near the wedge rib (74), and the punch rivet head (71) is inserted into the insertion holes.

8. The bushing press-fit gasket fixture according to claim 1, characterized in that, The second connecting plate (9) has a plurality of magnetic elements (91) for adsorbing the pad (10) on the side away from the first connecting plate (6).