Press riveting tool for gear shaft bearing retainer ring of vehicle steering system

Abstract

The utility model discloses a vehicle steering system gear shaft bearing retainer pressing and riveting tool which comprises a positioning base, a positioning guide block arranged in the positioning base and used for positioning a gear shaft, a supporting mechanism used for providing elastic supporting for the positioning guide block and a retainer pressing block arranged on the positioning base and used for placing a part to be assembled. The check ring pressing block is located above the positioning guide block, and the part to be assembled is a check ring. According to the press riveting tool for the gear shaft bearing check ring of the vehicle steering system, rapid press fitting of the gear shaft bearing check ring of the vehicle steering system can be achieved, operation is simplified, and efficiency is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicle steering systems, and in particular relates to a riveting tool for a gear shaft bearing retaining ring of a vehicle steering system. Background Art

[0002] An existing gear shaft structure of a vehicle steering system has a bearing installed on the gear shaft, a retaining ring is arranged at the end of the gear shaft, and the retaining ring is formed into a taper by riveting, and the conical surface is just squeezed into the groove of the gear shaft, so that the gear shaft and the bearing are firmly connected.

[0003] The Chinese patent application number 202021418272.0 discloses a tool for riveting and assembling gears and retaining rings in electric vehicle gear parts. In order to improve the riveting efficiency of electric vehicle gear parts and reduce production costs, the utility model proposes a tool for riveting and assembling electric vehicle gear parts, which includes a support base and a riveting piece. The support surface of the support base is provided with a main positioning column and a secondary positioning column. The main positioning column and the secondary positioning column can be inserted into the through hole on the electric vehicle gear part to be riveted and assembled; the riveting piece is arranged opposite to the support base, and the riveting surface of the riveting piece is opposite to the support surface of the support base. A combined punching needle group is arranged on the riveting surface of the riveting piece, and multiple riveting needles in the combined punching needle group are located on the same circumference.

[0004] It is desired to provide a riveting tool for a gear shaft bearing retaining ring of a vehicle steering system, and in particular to provide a tool capable of realizing rapid press-fitting of a gear shaft bearing retaining ring of a vehicle steering system. Utility Model Content

[0005] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a vehicle steering system gear shaft bearing retaining ring press riveting tool, the purpose of which is to achieve the rapid press installation of the vehicle steering system gear shaft bearing retaining ring.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a vehicle steering system gear shaft bearing retaining ring riveting tool, including a positioning base, a positioning guide block arranged in the positioning base and used to position the gear shaft, a supporting mechanism for providing elastic support to the positioning guide block, and a retaining ring pressing block arranged on the positioning base and used to place the part to be assembled, the retaining ring pressing block is located above the positioning guide block, and the part to be assembled is the retaining ring.

[0007] The positioning base is a hollow component, and a countersunk hole for accommodating the retaining ring pressing block is arranged at the upper end of the positioning base.

[0008] The outer diameter of the retaining ring pressing block and the inner diameter of the positioning base are interference fit.

[0009] The supporting mechanism comprises a compression spring and a spring limiting block, wherein the spring limiting block is located below the positioning guide block, and the compression spring is sandwiched between the positioning guide block and the spring limiting block.

[0010] The holding spring is a cylindrical helical spring and a compression spring.

[0011] An elastic retaining ring for a hole is arranged at the lower end of the positioning base, and the elastic retaining ring for the hole is located below the spring limiting block.

[0012] The utility model discloses a vehicle steering system gear shaft bearing retaining ring press riveting tool, which can realize the rapid press-fitting of the vehicle steering system gear shaft bearing retaining ring, simplifies the operation and is highly efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] This specification includes the following drawings, which show the following contents:

[0014] Figure 1 It is a cross-sectional view of a riveting tool for a gear shaft retaining ring of a vehicle steering system of the utility model;

[0015] Figure 2 It is an exploded view of the vehicle steering system gear shaft retaining ring press riveting tool of the utility model;

[0016] Figure 3 It is an axonometric view of the vehicle steering system gear shaft retaining ring press riveting tool of the utility model;

[0017] Figure 4 This is the comparison of the gear shaft retaining ring before and after riveting;

[0018] The markings in the figure are: 1. gear shaft; 2. rolling bearing; 3. retaining ring; 4. retaining ring pressure block; 5. positioning base; 6. positioning guide block; 7. compression spring; 8. spring limit block; 9. elastic retaining ring for hole. DETAILED DESCRIPTION

[0019] The specific implementation methods of the utility model are further explained in detail below with reference to the accompanying drawings through the description of embodiments, with the aim of helping technicians in the field to have a more complete, accurate and in-depth understanding of the concept and technical solution of the utility model and facilitating its implementation.

[0020] like Figures 1 to 4 As shown, the utility model provides a vehicle steering system gear shaft bearing retaining ring riveting tool, including a positioning base 5, a positioning guide block 6 arranged in the positioning base 5 and used for positioning the gear shaft 1, a supporting mechanism for providing elastic support to the positioning guide block 6, and a retaining ring pressing block 4 arranged on the positioning base 5 and used for placing the part to be assembled, the retaining ring pressing block 4 is located above the positioning guide block 6, and the part to be assembled is the retaining ring 3.

[0021] Specifically, if Figures 1 to 4 As shown, the positioning base 5 is a hollow component with a central through hole, the upper end of the positioning base 5 is provided with a countersink for accommodating the retaining ring pressing block 4, the lower end countersink is used to place the positioning guide block 6, and the positioning guide block 6 is provided with a countersink for inserting the lower end of the gear shaft 1. The positioning guide block 6 cooperates with the positioning base 5, and the positioning guide block 6 is arranged in the inner cavity of the positioning base 5.

[0022] like Figures 1 to 4 As shown, the outer diameter of the retaining ring pressing block 4 and the inner diameter of the positioning base 5 are interference fit, so that the retaining ring pressing block 4 can be fixed on the positioning base 5, the retaining ring pressing block 4 is coaxially arranged with the positioning base 5 and the positioning guide block 6, the retaining ring pressing block 4 is a circular ring structure, and the gear shaft 1 passes through the center hole of the retaining ring pressing block 4.

[0023] like Figures 1 to 4 As shown, the outer diameter of the positioning guide block 6 and the inner diameter of the positioning base 5 are clearance-matched, so that the positioning guide block 6 can slide freely in the positioning base 5, and the positioning guide block 6 is a circular ring structure. The retaining ring pressing block 4 and the positioning guide block 6 can be replaced according to the size of the gear shaft 1 and the retaining ring.

[0024] like Figures 1 to 4 As shown, the support mechanism includes a compression spring 7 and a spring stopper 8. The spring stopper 8 is located below the positioning guide block 6. The compression spring 7 is sandwiched between the positioning guide block 6 and the spring stopper 8. The compression spring 7 is used to support the positioning guide block 6, and the spring stopper 8 is used to limit the compression spring 7. The compression spring 7 is a cylindrical helical spring and a compression spring. The compression spring 7 is coaxially arranged with the positioning guide block 6 and the spring stopper 8. The compression spring 7 applies an upward elastic force to the positioning guide block 6. The positioning guide block 6 is connected to the compression spring 7 below, and the compression spring 7 is used to support the positioning guide block 6; the other end of the compression spring 7 is connected to the spring stopper 8; the positioning guide block 6, the compression spring 7 and the spring stopper 8 are all in the cavity of the positioning base 5.

[0025] like Figures 1 to 4 As shown, a hole elastic circlip 9 is provided at the lower end of the positioning base 5, and the hole elastic circlip 9 is located below the spring limit block 8, and the spring limit block 8 is restricted in the cavity by the hole elastic circlip 9.

[0026] The working steps of the vehicle steering system gear shaft 1 retaining ring press riveting tool are as follows:

[0027] 1. Place the retaining ring 3 steadily on the retaining ring pressing block 4;

[0028] 2. Place the rolling bearing 2 on the gear shaft 1, and make the end face of the rolling bearing 2 fit with the limiting surface on the gear shaft 1;

[0029] 3. Place the assembly formed in step 2 into the riveting tool, and pass the gear shaft 1 through the retaining ring pressing block 4 to ensure that the outer diameter of the lower end of the gear shaft 1 fits with the countersunk hole of the positioning guide block 6;

[0030] 4. Apply downward pressure to the gear shaft 1 and start riveting. The rolling bearing 2 pushes the retaining ring 3 downward, and the retaining ring 3 gradually embeds into the conical hole set at the upper end of the retaining ring pressing block 4. The retaining ring 3 is deformed. The front and rear changes of the retaining ring 3 are as follows: Figure 4 As shown, the retaining ring 3 is finally completely embedded in the conical hole, the retaining ring 3 is fixed on the gear shaft 1, and the retaining ring 3 plays an axial limiting role on the rolling bearing 2;

[0031] 5. After riveting is completed, remove the product.

[0032] The above is an exemplary description of the utility model in conjunction with the accompanying drawings. Obviously, the specific implementation of the utility model is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the utility model; or the above concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. The vehicle steering system gear shaft bearing retaining ring press riveting tool is characterized by: It includes a positioning base, a positioning guide block arranged in the positioning base and used for positioning the gear shaft, a supporting mechanism for providing elastic support for the positioning guide block, and a retaining ring pressing block arranged on the positioning base and used for placing the part to be assembled. The retaining ring pressing block is located above the positioning guide block, and the part to be assembled is a retaining ring.

2. The vehicle steering system gear shaft bearing retaining ring press riveting tool according to claim 1, characterized in that: The positioning base is a hollow component, and a countersunk hole for accommodating the retaining ring pressing block is arranged at the upper end of the positioning base.

3. The vehicle steering system gear shaft bearing retaining ring press riveting tool according to claim 2, characterized in that: The outer diameter of the retaining ring pressing block and the inner diameter of the positioning base are interference fit.

4. The vehicle steering system gear shaft bearing retaining ring press riveting tool according to any one of claims 1 to 3, characterized in that: The supporting mechanism comprises a compression spring and a spring limiting block, wherein the spring limiting block is located below the positioning guide block, and the compression spring is sandwiched between the positioning guide block and the spring limiting block.

5. The vehicle steering system gear shaft bearing retaining ring press riveting tool according to claim 4, characterized in that: The holding spring is a cylindrical helical spring and a compression spring.

6. The vehicle steering system gear shaft bearing retaining ring press riveting tool according to claim 4, characterized in that: An elastic retaining ring for a hole is arranged at the lower end of the positioning base, and the elastic retaining ring for the hole is located below the spring limiting block.

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