Riveting assembly structure for inner pull rod of automobile

Abstract

The utility model relates to the technical field of inner pull rod assembly, in particular to an automobile inner pull rod riveting assembly structure. The utility model comprises a shell with a U-shaped cross section, wherein the inner surface of the shell is filled with a layer of lining; a rod body of the inner pull rod is installed on the clamping tool, a ball head of the inner pull rod is riveted into the shell from top to bottom, and a lining is arranged between the ball head and the shell in a spaced mode. An opening in the top of the shell is folded inwards to form a rolling opening tightly attached to the ball head; the inner surface of the clamping tool is provided with an extrusion cambered surface matched with the opening in the top of the shell. The clamping tool drives the inner pull rod to be riveted with the shell, and the opening of the shell is formed through one-time machining by utilizing the extrusion cambered surface, so that the working efficiency is high; the extrusion cambered surface can apply uniform pressure to the components, so that the components are tightly combined, and the riveting quality is ensured; a gap between the ball head and the shell is filled with the plastic lining, good attachment is achieved, friction of metal parts is buffered, and riveting is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of internal tie rod assembly technology, specifically to a riveting assembly structure for automotive internal tie rods. Background Technology

[0002] In automobile manufacturing, the assembly quality of the inner tie rod directly affects the vehicle's steering performance and safety. Existing inner tie rod assembly structures, such as the one disclosed in Chinese Patent Publication No. CN209800526U, involve a ball joint housing for an automotive steering tie rod. However, this assembly structure suffers from problems during assembly, including low efficiency, loose fit between components, and severe wear due to direct friction between metal parts, thus affecting the service life and performance stability of the automotive inner tie rod. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide an automotive internal tie rod riveting assembly structure.

[0004] The technical solution adopted in this utility model is as follows:

[0005] An automotive tie rod riveting assembly structure includes a housing with a U-shaped cross-section, the inner surface of which is filled with a bushing; the tie rod is mounted on a clamping fixture, and the ball end of the tie rod is riveted to the housing from top to bottom, with a bushing spaced between the ball end and the housing; the top opening of the housing tapers inward to form a rolled-up opening that fits tightly against the ball end; the inner surface of the clamping fixture is provided with an extrusion arc surface that matches the top opening of the housing.

[0006] This technical solution uses a clamping fixture to rivet the inner tie rod to the housing. The ball head and the housing are spaced apart by a bushing to achieve an interference fit. The opening of the housing is formed in one step by the extrusion arc surface of the clamping fixture, which is highly efficient.

[0007] In addition, the automotive internal tie rod riveting assembly structure proposed above according to this utility model may also have the following additional technical features:

[0008] According to one embodiment of the present invention, the bushing is a plastic shell with a U-shaped cross-section, and the inner surface of the bushing is a spherical surface that mates with the ball head.

[0009] In this technical solution, the bushing is made of plastic. The bushing fills the gap between the ball head and the shell to achieve a better fit. In addition, plastic has a certain cushioning effect, avoiding direct friction between metal parts, which facilitates riveting and extends service life in later work.

[0010] According to one embodiment of the present invention, the bushing is an integral or separate structure.

[0011] In this technical solution, the integrated bushing structure is simple, has good integrity, and is easy to install, reducing assembly difficulty and cost. The split structure allows for the separate installation of each part, which is then combined together. During maintenance or replacement, only the damaged part needs to be replaced, reducing maintenance costs.

[0012] According to one embodiment of the present invention, the clamping fixture is cylindrical with an assembly hole in the middle, and a rod is inserted through the assembly hole; the bottom of the clamping fixture is concave inward to form a compression arc surface.

[0013] In this technical solution, during the riveting assembly process, the extrusion arc surface can apply uniform pressure to components such as bushings and housings, so that these components are tightly joined together.

[0014] According to one embodiment of the present invention, a fixing seat is provided at the bottom of the housing, and the fixing seat and the clamping fixture above are located in the same vertical direction.

[0015] The same vertical direction of this technical solution ensures that the force transmission is more direct and vertical during the riveting assembly process, reducing force offset and loss.

[0016] According to one embodiment of the present invention, when the fixed seat and the clamping fixture are riveted together, the housing is completely located within the cavity where the fixed seat and the clamping fixture are located.

[0017] Compared with the prior art, this utility model has the following advantages:

[0018] The clamping fixture drives the inner tie rod to rivet with the housing. The opening of the housing is formed in one step by extrusion arc surface, which is highly efficient. Moreover, the extrusion arc surface can apply uniform pressure to the parts, so that the parts are tightly joined and the riveting quality is guaranteed. The plastic bushing fills the gap between the ball head and the housing, achieving a good fit, buffering the friction of metal parts, and facilitating riveting. Attached Figure Description

[0019] Figure 1 This is a cross-sectional view of the present invention.

[0020] Figure 2 This is a perspective view of the present invention.

[0021] Figure 3 This is an assembly drawing of this utility model.

[0022] In the diagram: 1. Shell; 2. Bushing; 3. Coil end; 4. Ball head; 5. Rod body; 6. Clamping fixture. Detailed Implementation

[0023] 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, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1

[0025] like Figures 1 to 3 As shown, this embodiment provides a riveting assembly structure for an automotive inner tie rod, including a housing 1 with a U-shaped cross-section, the inner surface of which is filled with a bushing 2; the rod body 5 of the inner tie rod is mounted on a clamping fixture 6, the ball head 4 of the inner tie rod is riveted to the housing 1 from top to bottom, and the bushing 2 is spaced between the ball head 4 and the housing 1; the top opening of the housing 1 is narrowed inward to form a coiled opening 3 that is close to the ball head 4; the inner surface of the clamping fixture 6 is provided with an extrusion arc surface that matches the top opening of the housing 1.

[0026] like Figures 1 to 3 As shown, this technical solution uses the clamping fixture 6 to drive the inner tie rod to be riveted to the housing 1. The ball head 4 and the housing 1 are spaced apart by the bushing 2 to achieve an interference fit. The opening of the housing 1 is formed in one step by the extrusion arc surface of the clamping fixture 6, which has high working efficiency.

[0027] In addition, the automotive internal tie rod riveting assembly structure proposed above according to this utility model may also have the following additional technical features:

[0028] According to one embodiment of the present invention, the bushing 2 is a plastic shell with a U-shaped cross-section, and the inner surface of the bushing 2 is a spherical surface that mates with the ball head 4.

[0029] In this technical solution, the bushing 2 is a plastic part. The bushing 2 is used to fill the gap between the ball head 4 and the housing 1 to achieve a better fit. In addition, plastic has a certain cushioning effect, avoiding direct friction between metal parts, which facilitates riveting and extends service life in later work.

[0030] According to one embodiment of the present invention, the bushing 2 is an integral or separate structure.

[0031] In this technical solution, the integrated bushing 2 has a simple structure, good integrity, and is easy to install, reducing assembly difficulty and cost. The split structure allows for the separate installation of each part, which can then be assembled together. During maintenance or replacement, only the damaged part needs to be replaced, reducing maintenance costs.

[0032] According to one embodiment of the present invention, the clamping fixture 6 is cylindrical with an assembly hole in the middle, and a rod 5 is inserted through the assembly hole; the bottom of the clamping fixture 6 is concave inward to form a pressing arc surface.

[0033] In this technical solution, during the riveting assembly process, the extrusion arc surface can apply uniform pressure to components such as bushing 2 and housing 1, so that these components are tightly joined together.

[0034] According to one embodiment of the present invention, a fixing seat is provided at the bottom of the housing 1, and the fixing seat and the clamping fixture 6 above are located in the same vertical direction.

[0035] The same vertical direction of this technical solution ensures that the force transmission is more direct and vertical during the riveting assembly process, reducing force offset and loss.

[0036] According to one embodiment of the present invention, when the fixed seat and the clamping fixture 6 are riveted together, the housing 1 is completely located in the cavity where the fixed seat and the clamping fixture 6 are located.

[0037] The usage process of the above embodiments is as follows:

[0038] like Figures 1 to 3 As shown, the inner tie rod 5 is installed on the clamping fixture 6. The rod 5, which passes through the middle assembly hole of the clamping fixture 6, serves as a connector. The fixing seat below the housing 1 is in place and is located in the same vertical direction as the clamping fixture 6. The clamping fixture 6 drives the inner tie rod to move downward, so that the ball head 4 enters the housing 1 from top to bottom. There is a bushing 2 between the ball head 4 and the housing 1. The bushing 2 is made of plastic and its inner surface is a spherical surface that matches the ball head 4. It can fill the gap to achieve a good fit and at the same time buffer the friction of the metal parts. After the ball head 4 enters the appropriate position in the housing 1, the clamping fixture 6 continues to press down. Its bottom concave extrusion arc surface matches the top opening of the housing 1, applying uniform pressure to the bushing 2, housing 1 and other components, so that the components are tightly joined. During this process, the top opening of the housing 1 closes inward to form a coiled opening 3 that is close to the ball head 4, completing the riveting assembly.

[0039] Although the present invention has been described in detail with reference to the accompanying drawings and preferred embodiments, it is not limited thereto. Various equivalent modifications or substitutions can be made to the embodiments of the present invention by those skilled in the art without departing from the spirit and essence of the present invention, and such modifications or substitutions should all be within the scope of the present invention. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should also be included within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the scope of the claims.

Claims

1. A riveting assembly structure for an automotive internal tie rod, characterized in that, The device includes a housing (1) with a U-shaped cross-section, the inner surface of which is filled with a bushing (2); the rod (5) of the inner tie rod is mounted on a clamping fixture (6), the ball head (4) of the inner tie rod is riveted to the housing (1) from top to bottom, and the bushing (2) is spaced between the ball head (4) and the housing (1); the top opening of the housing (1) is closed inward to form a coiled opening (3) that is close to the ball head (4); the inner surface of the clamping fixture (6) is provided with an extrusion arc surface that matches the top opening of the housing (1).

2. The automotive internal tie rod riveting assembly structure as described in claim 1, characterized in that, The bushing (2) is a plastic shell with a U-shaped cross-section, and the inner surface of the bushing (2) is a spherical surface that matches the ball head (4).

3. The automotive internal tie rod riveting assembly structure as described in claim 1 or 2, characterized in that, The bushing (2) is either an integral or separate structure.

4. The automotive internal tie rod riveting assembly structure as described in claim 1, characterized in that, The clamping fixture (6) is a columnar fixture with an assembly hole in the middle, and a rod (5) is inserted through the assembly hole; the bottom of the clamping fixture (6) is recessed inward to form a compression arc surface.

5. The automotive internal tie rod riveting assembly structure as described in claim 1, characterized in that, A fixing seat is provided below the housing (1), and the fixing seat and the clamping fixture (6) above are located in the same vertical direction.

6. The automotive internal tie rod riveting assembly structure as described in claim 5, characterized in that, When the fixed seat and the clamping fixture (6) are riveted together, the housing (1) is completely located in the cavity where the fixed seat and the clamping fixture (6) are located.

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