An open bushing type thrust rod assembly fixture
By designing an open bushing-type thrust rod assembly fixture, and utilizing an external power unit and the extrusion technology of the inclined inner wall, the problem of easy damage to rubber bushings during assembly was solved, achieving convenient installation and improved product stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHUCHENG CITY YUMEI AUTO PARTS CO LTD
- Filing Date
- 2025-05-15
- Publication Date
- 2026-05-26
AI Technical Summary
When the interference fit between the bushing and the housing is large, the rubber bushing is easily damaged during assembly, leading to assembly difficulties and affecting product stability and dimensional consistency.
Design an open bushing type thrust rod assembly fixture. Use an external power device to drive the pressure head to squeeze the rubber bushing through the diameter reduction ring on the inclined inner wall, so that it shrinks and is inserted into the housing. Use positioning blocks and positioning rods to adjust the position of the housing to facilitate installation and ensure that the bushing fits tightly with the housing.
This enables convenient installation of the rubber bushing, improves product stability and dimensional consistency during assembly, avoids damage to the bushing and housing, and ensures the stability of the assembly performance.
Smart Images

Figure CN224274840U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of thrust rod technology, and in particular to an open bushing type thrust rod assembly tool. Background Technology
[0002] The purpose of the thrust rod is to prevent axle displacement. While typical straight thrust rods prevent forward / backward displacement of the middle and rear axles, this new type of thrust rod prevents lateral displacement of the axle. Due to vehicle layout constraints, a rubber bushing structure can only be used at the axle end. During bushing assembly, the large interference fit between the bushing and the housing leads to damage to both. Utility Model Content
[0003] To address the aforementioned technical problems, this utility model proposes an open bushing type thrust rod assembly fixture. An external power device drives the pressure head downwards, causing the rubber bushing to shrink under the pressure of the inner wall of the reducing ring. This facilitates the insertion of the rubber bushing into the housing. The portion of the rubber bushing inserted into the housing returns to its original shape due to its elasticity, fitting tightly against the inner wall of the housing. This achieves the effect of easy installation of the rubber bushing, solves the problem of easy damage to the rubber bushing during assembly, ensures the performance and dimensional consistency of the assembled assembly, and improves product stability.
[0004] The technical solution to achieve the purpose of this utility model is: an open bushing type thrust rod assembly tooling, including an outer shell, and an assembly assembly is provided on the outside of the outer shell, the assembly assembly including;
[0005] The base is located at the bottom of the outer casing, and a positioning groove is provided on the top wall of the base;
[0006] A reducing ring is provided on the top of the outer shell. The inside of the reducing ring is hollow, and the inner sidewall of the reducing ring is inclined with a smaller radius closer to the bottom. A pressure head is provided on the top of the reducing ring, and the pressure head can slide through the inside of the reducing ring.
[0007] A rubber bushing is disposed on the top of the housing.
[0008] In some embodiments, a protruding tongue is fixedly installed on the inner sidewall of the pressure head.
[0009] In some embodiments, a positioning block is fixedly installed inside the positioning groove, and the inner sidewall of the positioning block is inclined.
[0010] In some embodiments, positioning rods slide equidistantly through the outer circumference of the base.
[0011] In some embodiments, a positioning plate is fixedly installed on the side wall of the positioning rod away from the base, and a compression spring is sleeved on the side wall of the positioning rod.
[0012] In some embodiments, a rubber head is fixedly installed at one end of the positioning rod located inside the base.
[0013] Compared with the prior art, the significant advantages of this utility model are:
[0014] Firstly, this invention involves placing a rubber bushing inside a reducing ring and driving a pressure head downwards via an external power device. Because the inner wall of the reducing ring is inclined, the rubber bushing shrinks under pressure from the inner wall, facilitating its insertion into the outer shell. The portion of the rubber bushing inserted into the outer shell will return to its original shape due to its elasticity, fitting tightly against the inner wall of the outer shell. This achieves the effect of easy installation of the rubber bushing, solving the problem of easy damage to the rubber bushing during assembly, ensuring the performance and dimensional consistency of the assembled assembly, and improving product stability. It also solves the problem of large interference fit dimensions between the existing bushing and housing, which leads to damage to both.
[0015] Secondly, this utility model, by setting the inner sidewall of the positioning block to be inclined, facilitates the positioning of the outer shell, so that the outer shell can be located in the middle position inside the base, making it easy for the reducing ring and the pressure head to be aligned with the outer shell. Attached Figure Description
[0016] The present invention will be further explained below with reference to the accompanying drawings and embodiments:
[0017] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this utility model;
[0018] Figure 2 This is a partial structural schematic diagram of Embodiment 1 of the present utility model;
[0019] Figure 3 This is a partial structural schematic diagram of Embodiment 2 of this utility model;
[0020] Figure 4 This is a utility model Figure 3 Enlarged diagram of point A in the middle.
[0021] Explanation of reference numerals in the attached figures:
[0022] 1. Outer shell; 2. Base; 3. Reduction ring; 4. Pressure head; 5. Rubber bushing; 6. Protruding tongue; 7. Positioning groove; 8. Positioning block; 9. Positioning rod; 10. Compression spring; 11. Positioning plate; 12. Rubber head. Detailed Implementation
[0023] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.
[0024] This utility model provides an improved open bushing type thrust rod assembly fixture. The technical solution of this utility model is as follows:
[0025] Example 1
[0026] like Figures 1-2 As shown, an open bushing type thrust rod assembly fixture includes an outer shell 1. An assembly assembly is disposed on the outside of the outer shell 1. The assembly assembly includes a base 2, a reducing ring 3, and a rubber bushing 5. The base 2 is disposed at the bottom of the outer shell 1, and a positioning groove 7 is formed on the top wall of the base 2. The reducing ring 3 is disposed at the top of the outer shell 1. The reducing ring 3 is hollow inside, and its inner sidewall is inclined with a smaller radius closer to the bottom. A pressure head 4 is disposed at the top of the reducing ring 3, and the pressure head 4 can slide through the interior of the reducing ring 3. The rubber bushing 5 is disposed at the top of the outer shell 1. During use... The rubber bushing 5 is placed inside the reducing ring 3, and the pressure head 4 is driven downward by an external power device. Since the inner wall of the reducing ring 3 is inclined, the rubber bushing 5 is compressed by the inner wall of the reducing ring 3, making it easier to insert the rubber bushing 5 into the inner shell 1. The part of the rubber bushing 5 inserted into the inner shell 1 will return to its original shape due to its own elasticity and fit tightly against the inner wall of the outer shell 1, achieving the effect of facilitating the installation of the rubber bushing 5. This solves the problem of the rubber bushing 5 being easily damaged during the assembly process, ensures the performance and dimensional consistency of the assembly, and improves product stability.
[0027] like Figure 2 As shown, in this embodiment, a protruding tongue 6 is fixedly installed on the inner sidewall of the pressure head 4; the protruding tongue 6 makes the inner top wall of the pressure head 4 protrude, and the top end of the rubber bushing 5 is engaged between the protruding tongue 6 and the inner sidewall of the pressure head 4, which facilitates the positioning of the rubber bushing 5.
[0028] Example 2
[0029] like Figures 3-4As shown, based on Embodiment 1, this utility model provides a technical solution: a positioning block 8 is fixedly installed inside the positioning groove 7, and the inner sidewall of the positioning block 8 is inclined; by setting the inner sidewall of the positioning block 8 to be inclined, it is convenient to position the outer shell 1, so that the outer shell 1 can be located in the middle position inside the base 2, which facilitates the alignment of the reducing ring 3 and the pressure head 4 with the outer shell 1; a positioning rod 9 is equidistantly slidably passed through the outer sidewall of the base 2; by sliding the positioning rod 9 through the sidewall of the base 2, the positioning rod 9 is pushed into the base 2, which facilitates the adjustment of the position of the outer shell 1; the sidewall of the positioning rod 9 away from the base 2 A positioning plate 11 is fixedly installed on the base 2. A compression spring 10 is fitted on the side wall of the positioning rod 9. The two ends of the compression spring 10 are fixedly connected to the positioning plate 11 and the side wall of the base 2, respectively. By utilizing the elasticity of the compression spring 10, the positioning plate 11 is pulled closer to the base 2, and the multiple positioning rods 9 automatically adjust the position of the base 2 to ensure that the outer shell 1 is located in the center position inside the base 2. A rubber head 12 is fixedly installed on one end of the positioning rod 9 inside the base 2. By utilizing the contact between the rubber head 12 and the side wall of the outer shell 1, the side wall of the outer shell 1 and the positioning rod 9 are protected to prevent damage to the positioning rod 9 or the side wall of the outer shell 1.
[0030] The specific working method is as follows: During use, the rubber bushing 5 is placed inside the reducing ring 3, and the pressure head 4 is driven downward by an external power device. Since the inner wall of the reducing ring 3 is inclined, the rubber bushing 5 is reduced under the pressure of the inner wall of the reducing ring 3, making it easier to insert the rubber bushing 5 into the inner shell 1. The part of the rubber bushing 5 inserted into the inner shell 1 will return to its original shape due to its own elasticity and fit tightly against the inner wall of the outer shell 1, achieving the effect of facilitating the installation of the rubber bushing 5. This solves the problem of the rubber bushing 5 being easily damaged during assembly, ensures the performance and dimensional consistency of the assembly, and improves product stability. By utilizing the elasticity of the compression spring 10, the positioning plate 11 is pulled closer to the base 2, and multiple positioning rods 9 automatically adjust the position of the base 2 to ensure that the outer shell 1 is located in the center position inside the base 2.
[0031] The technical means disclosed in this utility model are not limited to those described above, but also include technical solutions composed of equivalent substitutions of the above technical features. Matters not covered in this utility model are common knowledge to those skilled in the art.
Claims
1. An open bushing type thrust rod assembly fixture, comprising an outer shell (1), characterized in that: An assembly assembly is provided on the outside of the outer shell (1), the assembly assembly including; The base (2) is located at the bottom of the outer shell (1), and the top wall of the base (2) is provided with a positioning groove (7); A reducing ring (3) is provided on the top of the outer shell (1). The inside of the reducing ring (3) is hollow, and the inner sidewall of the reducing ring (3) is inclined with a smaller radius closer to the bottom. A pressure head (4) is provided on the top of the reducing ring (3). The pressure head (4) can slide through the inside of the reducing ring (3). A rubber bushing (5) is disposed on the top of the outer casing (1).
2. The open bushing type thrust rod assembly fixture according to claim 1, characterized in that: The inner wall of the pressure head (4) is fixedly fitted with a tongue (6).
3. The open bushing type thrust rod assembly fixture according to claim 1, characterized in that: A positioning block (8) is fixedly installed inside the positioning groove (7), and the inner wall of the positioning block (8) is inclined.
4. The open bushing type thrust rod assembly fixture according to claim 1, characterized in that: The outer side wall of the base (2) is circumferentially equidistantly slidably perforated by positioning rods (9).
5. The open bushing type thrust rod assembly fixture according to claim 4, characterized in that: A positioning plate (11) is fixedly installed on the side wall away from the base (2) of the positioning rod (9), and a compression spring (10) is sleeved on the side wall of the positioning rod (9).
6. The open bushing type thrust rod assembly fixture according to claim 4, characterized in that: The positioning rod (9) has a rubber head (12) fixedly installed at one end inside the base (2).