Device for disassembling and assembling vehicle chassis swing arm rubber sleeve

Abstract

The utility model discloses a device for dismounting and mounting a swing arm rubber sleeve of a vehicle chassis, which comprises a dismounting assembly and a mounting assembly, the dismounting assembly is provided with a support base for accommodating an automobile support arm assembly and a dismounting hold-down tool head, a positioning assembly is embedded between the automobile support arm assembly and the support base, and the support base is provided with a support point. The pressing tool head applies force to the rubber sleeve body, the positioning assembly provides transverse supporting force and changes the direction of external force, the mounting assembly comprises a mounting base and a mounting pressing tool head, cavities of the mounting base and the mounting pressing tool head are matched with the outer wall of a supporting arm rubber sleeve ring, and the base provides vertical supporting force during mounting; through cooperation of the supporting base, the positioning assembly and the supporting points, external force is changed from vertical force to transverse force, replacement of the rubber sleeve with the protection flange is completed under the conditions that the supporting arm is not damaged and original factory data can be guaranteed, the installation stability and accuracy are guaranteed through the installation assembly, the installation quality is improved, the existing technical problems are effectively solved, and the production efficiency is improved. And the automobile chassis maintenance efficiency and quality are improved.

Description

Technical Field

[0001] This utility model relates to the field of automotive repair technology, specifically to a device for disassembling and assembling the rubber bushing of a vehicle chassis control arm. Background Technology

[0002] In the automotive technology field, the performance of the chassis system is crucial to the overall operation and driving experience of a vehicle. As a key component of the chassis system, the control arm bushing mainly consists of a center positioning bolt hole, a damping rubber ring, and the outer wall of the bushing; some bushings also include a protective flange. With the use of vehicles, increased mileage, and age, the damping rubber ring of the control arm bushing inevitably experiences aging, deformation, and cracking.

[0003] Damaged rubber bushings and shock absorber rings can directly lead to a loosening of the car's chassis structure, severely impacting ride comfort and potentially negatively affecting handling stability and driving safety. Since rubber bushings are considered wear-prone parts, timely replacement to improve chassis condition and enhance driving safety is a common practice in automotive maintenance.

[0004] Currently, automotive mechanics typically use hydraulic presses or screw pullers to replace bushings. Both methods rely on a flat base to support the outer wall of the control arm, then a bushing press is used to press down on the bushing's outer wall, applying force in the opposite direction to force it out. This method is particularly effective with flat bushings, efficiently completing the installation and removal process.

[0005] However, when encountering bushings with protective flanges, the flange end face covers the outer wall plane of the control arm, causing the flat base to lose its effective support point. Consequently, the bushing press cannot obtain sufficient reaction force when pressed down. Therefore, the two existing replacement methods cannot effectively disassemble and assemble bushings with protective flanges, which brings great inconvenience to automotive repair work. This problem is particularly prominent for off-road vehicles that widely use double wishbone suspension, frequently engage in water fording and off-road driving, and often use bushings with protective flanges.

[0006] In addition, other methods have been attempted in practice, such as cutting, welding, and burning. However, these methods have many drawbacks. During cutting and welding, the original control arm and bushing are prone to deformation, which makes it impossible to guarantee the original data. The burning method uses the principle of thermal expansion and contraction to make the inner wall of the control arm bushing expand due to heat, thereby changing the connection between the bushing and the control arm from an interference fit to a clearance fit to achieve bushing disassembly. However, this method will change the internal structure of the control arm and the internal properties of the steel, and cannot meet the strict requirements of the original data for the stress of the control arm in automobiles. Utility Model Content

[0007] To address the issue of disassembling and assembling rubber bushings with protective flanges, this invention provides a device for disassembling and assembling rubber bushings for automotive chassis control arms. Through the coordinated action of the support base, positioning components, and support points, the external force on the automotive control arm assembly is changed from the vertical support force in the prior art to a lateral force. By changing the position of the support point and the direction of the support force, the replacement of rubber bushings with protective flanges can be completed effectively without damaging the control arm or altering the original factory data.

[0008] This utility model is achieved through the following technical solution:

[0009] A device for removing and installing vehicle chassis control arm bushings, comprising:

[0010] A disassembly assembly, the disassembly assembly including a support base for accommodating the vehicle control arm assembly and a disassembly press head;

[0011] A positioning component is movably embedded between the inner wall surfaces of the vehicle arm assembly and the support base, and a support point for supporting the vehicle arm assembly is provided on one side of the support base opposite to the positioning component.

[0012] When the disassembly press head applies a vertically downward force to the rubber sleeve body in the vehicle arm assembly, the positioning assembly provides lateral support force to the vehicle arm assembly.

[0013] The mounting assembly includes a mounting base and a mounting press head. The mounting base and the mounting press head are respectively provided with cavities that match the two ends of the outer wall of the bushing in the vehicle arm assembly. When the mounting press head applies a vertically downward force to the bushing body, the mounting base provides vertical support force to the vehicle arm assembly.

[0014] In this solution, firstly, the support base in the disassembly assembly accommodates the vehicle control arm assembly, providing a stable foundation for the entire disassembly operation, while the disassembly press head directly acts on the bushing body. The positioning component is movably embedded between the vehicle control arm assembly and the inner wall of the support base, cooperating with the support points on the support base. When the disassembly press head applies a vertically downward force to the bushing body, the positioning component provides lateral support to the vehicle control arm assembly, thus changing the traditional disassembly method that relies solely on vertical support. This effectively solves the problem of flat bases lacking support points and the bushing press head lacking reaction force when pressing down, due to the flange end face covering the outer wall of the control arm. Simultaneously, the mounting base and mounting press head are respectively provided with cavities matching the two ends of the outer wall of the control arm bushing ring. When the mounting press head applies a vertically downward force to the bushing body, the mounting base provides vertical support to the vehicle control arm assembly, ensuring uniform force and accurate positioning of the bushing during installation, guaranteeing the stability and reliability of the installation. This structural design enables the device to accurately and efficiently complete the installation and removal of chassis control arm bushings without damaging the control arm or altering the original factory data, greatly improving the convenience and professionalism of bushing replacement in automotive repair.

[0015] As a further optimization, the vehicle control arm assembly includes a control arm rubber sleeve located in the cavity of the support base, and the positioning assembly includes a support liner and a positioning screw.

[0016] The support liner is an arc-shaped solid, and the inner wall diameter of the support liner is the same as the outer wall diameter of the support arm rubber sleeve, and the outer wall diameter of the support liner is the same as the inner wall diameter of the support base.

[0017] In this design, the support liner is an arc-shaped solid with its inner wall diameter matching the outer wall diameter of the control arm bushing and its outer wall diameter matching the inner wall diameter of the support base. This allows the support liner to achieve precise matching and tight fitting between the vehicle control arm assembly and the support base. During bushing installation and removal, when the disassembly press head applies a vertically downward force to the bushing body, the support liner, thanks to its excellent fit with the outer wall of the control arm bushing and the inner wall of the support base, can more effectively provide lateral support to the vehicle control arm assembly. This ensures that the vehicle control arm assembly can be stably stressed when installing or removing bushings with protective flanges, avoiding damage to the control arm or difficulties in bushing installation or removal due to uneven stress or improper support. This further improves the stability, reliability, and accuracy of the entire device in bushing installation and removal operations, ensuring the smooth replacement of the vehicle chassis control arm bushing.

[0018] As a further optimization, the vehicle control arm assembly also includes a control arm, and the wall of the support base is provided with a support groove that matches the control arm, the support groove providing a support point for the control arm.

[0019] In this design, the automotive control arm assembly includes a control arm, and a support groove on the support base wall, matching the control arm, provides a dedicated support point for the control arm. During the installation and removal of the bushing, when the disassembly tool applies a downward force to the bushing body, the support groove ensures stable and proper support for the control arm. This design prevents the control arm from shifting or wobbling under force, thus ensuring the stability of the entire automotive control arm assembly during bushing installation and removal. Simultaneously, the support groove works in conjunction with other components (such as support bushings) to change the traditional support mode of installation and removal, enabling the device to better handle installation and removal operations with protective flange bushings. It helps to distribute external forces rationally, preventing damage to the control arm or bushing due to excessive localized force, further enhancing the device's ability to complete bushing installation and removal without damaging the control arm or altering original factory data, ensuring the performance of the automotive chassis system and the efficiency of maintenance operations.

[0020] As a further optimization, an annular baffle is provided on the upper surface of the support liner, and the outer edge of the annular baffle extends toward the outer wall of the support base.

[0021] In this design, during the installation and removal of the rubber sleeve, the outer edge of the annular baffle extends towards the outer wall of the support base. Firstly, this enhances the positioning stability of the support liner within the support base, preventing unnecessary movement or rotation of the support liner under stress, thus ensuring it consistently provides precise and stable lateral support to the automotive control arm assembly. Secondly, during sleeve removal, when the sleeve is subjected to a downward vertical force from the removal tool head, the control arm and support liner tend to detach downwards. The outer edge of the annular baffle provides some resistance to this, preventing excessive downward displacement of the control arm and support liner, thus ensuring the continuity and controllability of the removal process.

[0022] As a further optimization, the upper end face of the rubber sleeve body is provided with a rubber sleeve fixing bolt hole, and the disassembly press head is provided with a positioning pin that matches the rubber sleeve fixing bolt hole.

[0023] In this solution, during the bushing removal operation, when the removal press head applies a vertically downward force to the bushing body, the positioning pin inserted into the bushing fixing bolt hole achieves precise positioning. On one hand, this ensures the accurate relative position of the removal press head and the bushing body, allowing the force to be applied precisely to the bushing body, avoiding uneven force distribution due to force application point deviation, and thus preventing additional damage to the bushing or support arm during removal. On the other hand, this positioning method enhances the stability and operability of the entire removal process, allowing the bushing to smoothly detach from the support arm in a predetermined direction and manner when subjected to a downward removal force. While improving removal efficiency, it also helps maintain the integrity of the vehicle support arm assembly, ensuring that the performance of the vehicle chassis system is not affected.

[0024] As a further optimization, the outer diameter of the disassembly press head is smaller than the inner diameter of the support arm rubber sleeve to form a clearance fit, and the outer length of the disassembly press head is greater than or equal to the inner length of the support arm rubber sleeve.

[0025] In this design, the outer diameter of the disassembly clamp head is smaller than the inner diameter of the support arm bushing, preventing damage to the inner wall of the bushing when the clamp head is inserted. During bushing removal, this clearance prevents force dispersion or shift during transmission, ensuring even force distribution on the bushing's inner wall and more efficiently pushing the bushing out of the support arm. The outer length of the disassembly clamp head is greater than or equal to the inner length of the support arm bushing, providing more comprehensive and stable support and pushing force. Throughout the removal process, the longer outer wall covers a larger area of ​​the bushing's inner wall, preventing deformation or damage due to uneven localized force, further ensuring smooth bushing removal. This also helps maintain the original structure and performance of the support arm and bushing, improving the reliability, stability, and accuracy of the device when removing and installing vehicle chassis control arm bushings, effectively solving the problem of removing bushings with protective flanges.

[0026] As a further optimization, a disassembly press head flange is provided at one end of the disassembly press head away from the positioning pin, and the disassembly press head flange extends toward the outer wall of the support base.

[0027] In this design, during the disassembly of the rubber sleeve, when a downward force is applied to the sleeve body, the disassembly press head flange can better connect and cooperate with external equipment (such as a press), ensuring that the force is stably and effectively transmitted to the disassembly press head and then acts on the sleeve body. Its design extending to the outer wall of the support base increases the stability and reliability of the connection, preventing loosening or detachment during force application and ensuring the continuity of the disassembly process. Simultaneously, the disassembly press head flange also plays a role in auxiliary positioning, working in conjunction with the positioning pin to further fix the relative position of the disassembly press head and the sleeve body, making the direction of the force more precise and avoiding unnecessary damage to the sleeve or support arm due to deviations in the direction of the applied force.

[0028] As a further optimization, the mounting base includes a support ring, a positioning ring, and a mounting base body;

[0029] The support ring forms a mounting cavity on the end face of the mounting base body, and the lower end face of the support arm rubber sleeve is in contact with the support ring;

[0030] The positioning ring is connected to the outer edge of the support ring, and the other end of the positioning ring extends outward.

[0031] In this design, a support ring forms a mounting cavity on the end face of the mounting base body. During sleeve installation, the lower end face of the outrigger sleeve contacts the support ring, providing stable vertical support and ensuring the sleeve remains vertical and stable during installation. This prevents the sleeve from tilting or shifting due to uneven force, thus ensuring accurate sleeve installation. A positioning ring connects to the outer edge of the support ring and extends outwards, precisely positioning the outrigger sleeve radially. During installation, when the mounting head applies a downward force to the sleeve body, the positioning ring restricts the horizontal displacement of the outrigger sleeve, ensuring it remains in the correct installation position and preventing eccentricity or misalignment during pressing. Simultaneously, the positioning ring and support ring work together to enhance the support and positioning capabilities of the entire mounting base for the automotive outrigger assembly, making the installation process smoother and more reliable.

[0032] As a further optimization, the mounting head includes a positioning cavity, the inner diameter of which is consistent with the minor diameter of the outer protective flange of the rubber sleeve body.

[0033] In this design, during the installation of the rubber sleeve, when the installation clamp head applies a vertically downward force to the rubber sleeve body, this dimensional consistency allows the positioning cavity to precisely fit onto the outer protective flange of the rubber sleeve, achieving accurate radial positioning of the rubber sleeve. On one hand, it ensures that the rubber sleeve maintains the correct horizontal position during installation, preventing eccentricity or tilting when the rubber sleeve is pressed into the support arm rubber sleeve ring, thus guaranteeing installation accuracy. Secondly, the tightly fitting positioning cavity and the protective flange on the outer wall of the rubber sleeve can effectively transmit pressure, so that the force applied by the installation pressure head is evenly distributed on the protective flange on the outer wall of the rubber sleeve, thereby evenly pushing the rubber sleeve into the control arm rubber sleeve ring, avoiding damage to the rubber sleeve or control arm due to uneven local force. Thirdly, during the installation process, since the installation pressure head does not contact the rubber part of the rubber sleeve, it will not apply pressure to the rubber part, thus preventing damage to the rubber sleeve. Therefore, this optimized design improves the accuracy and quality of rubber sleeve installation, helps to complete the installation of rubber sleeves smoothly without changing the original factory data, ensures the performance of the vehicle chassis system, and improves the reliability and stability of the device in the disassembly and assembly of vehicle chassis control arm rubber sleeves.

[0034] As a further optimization, a positioning through hole is provided on the bottom wall of the positioning cavity of the mounting press head. When pressing the rubber sleeve body, the positioning through hole is concentric with the rubber sleeve fixing bolt hole opened on the upper end face of the rubber sleeve body.

[0035] In this design, during the installation of the rubber sleeve, when the installation clamping head applies a vertically downward force to the rubber sleeve body, the concentricity of the positioning through hole and the rubber sleeve fixing bolt hole enables precise axial positioning. This ensures that the force applied by the installation clamping head is evenly transmitted along the central axis of the rubber sleeve, preventing the rubber sleeve from tilting or shifting during the pressing into the support arm, thus guaranteeing the accuracy of the rubber sleeve's installation position. Simultaneously, the concentric design facilitates subsequent bolt fixing of the rubber sleeve, allowing the bolts to smoothly pass through the positioning through hole and be screwed into the rubber sleeve fixing bolt hole, achieving a reliable connection between the rubber sleeve and the support arm.

[0036] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0037] This invention, through the coordinated action of the support base, positioning components, and support points in the disassembly assembly, transforms the external force on the automotive control arm assembly from a vertical support force to a lateral force. This allows for the smooth removal of the control arm with protective flange sleeves without damaging the control arm or altering the original factory specifications. Simultaneously, the design of the installation components ensures the stability and accuracy of the sleeve installation, improving installation quality. The entire device provides a simpler and more efficient method for replacing control arms with protective flange sleeves, significantly improving work efficiency while preserving the original factory specifications of the control arm. This enhances the professionalism of repair shops and provides strong support for the stability and improvement of automotive chassis system performance, demonstrating significant application value and practical significance in the automotive repair field. Attached Figure Description

[0038] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0039] Figure 1 A schematic diagram of a rubber sleeve with a protective flange;

[0040] Figure 2 This is a schematic diagram of a car control arm assembly;

[0041] Figure 3 A schematic diagram showing the connection between the rubber sleeve with protective flange and the vehicle control arm assembly;

[0042] Figure 4 This is a schematic diagram of the support base for the disassembly assembly of this utility model;

[0043] Figure 5 This is a schematic diagram of the support liner of the disassembly component of this utility model;

[0044] Figure 6 This is a schematic diagram of the disassembly press head of the disassembly assembly of this utility model;

[0045] Figure 7 This is a schematic diagram of the mounting base of the mounting component of this utility model;

[0046] Figure 8 This is a schematic diagram of the mounting clamp head of the mounting component of this utility model;

[0047] Figure 9 This is a schematic diagram illustrating the usage state of the support liner during the removal of the rubber sleeve.

[0048] Figure 10 This is a schematic diagram illustrating the usage state of the pressure head during the removal of the rubber sleeve;

[0049] Figure 11 This is a schematic diagram illustrating the external forces acting on the rubber sleeve and the disassembly components during the disassembly process.

[0050] Figure 12 This is a schematic diagram showing the forces acting on the rubber sleeve and the internal components of the disassembly assembly during the disassembly process.

[0051] Figure 13 This is a schematic diagram showing the connection and stress of the rubber sleeve during installation;

[0052] Figure 14 This is a schematic diagram showing the force exerted on the rubber sleeve when it is pressed into the support arm.

[0053] Figure 15 This is a schematic diagram of the support base for the disassembly component in other embodiments of the present invention;

[0054] Figure 16 This is a schematic diagram of the support base for the disassembly component in other embodiments of the present invention;

[0055] Figure 17 This is a schematic diagram of the front structure of the support base according to another embodiment of the present invention;

[0056] Figure 18 This is a schematic diagram of the back structure of the support base according to another embodiment of the present invention;

[0057] Figure 19 This is a schematic diagram of the disassembly process according to another embodiment of the present invention.

[0058] The attached diagram shows the markings and corresponding component names:

[0059] 1-Upper flange inside the rubber sleeve; 2-Outer protective flange of the rubber sleeve; 3-Bubble sleeve body; 4-Lower flange inside the rubber sleeve; 5-Fixing bolt hole of the rubber sleeve; 6-Inner wall of the support arm rubber sleeve ring; 7-Outer wall of the support arm rubber sleeve ring; 8-Positioning hole of the support arm rubber sleeve ring; 9-Support arm; 10-Weld joint; 11-Support base; 12-Support groove; 13-Outer wall of the support base; 14-Support lining; 15-Outer wall of the support lining; 16-Annular baffle; 17-Positioning pin; 18-Removal press head; 19-Removal press head flange; 20-Support ring; 21-Positioning ring; 22-Mounting cavity; 23-Mounting base body; 24-Crimping ring; 25-Positioning inner wall; 26-Positioning outer wall; 27-Positioning hole; 28-Positioning screw. Detailed Implementation

[0060] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.

[0061] In the field of automotive repair technology, rubber bushings are key and vulnerable components in automotive chassis systems, and their structures vary, with some featuring protective flanges. Existing disassembly methods for these bushings face numerous challenges.

[0062] Taking a common hydraulic press or screw-pulling mode as an example, traditional operation relies on a flat base supporting the outer wall of the support arm, using a rubber sleeve press to press down on the outer wall of the rubber sleeve, and relying on forces in opposite directions to remove the rubber sleeve. However, rubber sleeves with protective flanges (such as...) Figure 1 As shown, its structure includes an inner rubber upper flange 1, an outer rubber protective flange 2, a rubber sleeve body 3, an inner rubber lower flange 4, and rubber sleeve fixing bolt holes 5) and a vehicle support arm (such as... Figure 2As shown, the system is composed of the inner wall 6 of the outrigger sleeve, the outer wall 7 of the outrigger sleeve, the positioning hole 8 of the outrigger sleeve, the outrigger 9, and the weld joint 10. Figure 3 In the indicated state, the end face of the protective flange 2 on the outer wall of the rubber sleeve will cover the outer wall plane of the support arm 9. This situation prevents the flat base from obtaining an effective support point and from establishing a stable contact and support relationship with the outer wall of the support arm 9. When the rubber sleeve presser is pressed down, due to the lack of sufficient reaction force to balance and push, it is difficult to overcome the connection force between the rubber sleeve and the support arm, and the rubber sleeve cannot be pressed out smoothly.

[0063] Furthermore, other methods such as cutting and welding, while potentially achieving disassembly, easily deform the original control arm and bushings during the process. Cutting directly damages structural integrity, and the high temperature and stress of welding cause irreversible deformation of components, making it impossible to guarantee the original factory specifications. This alters the stringent dimensional and performance requirements of the vehicle's control arms and bushings during design and manufacturing, affecting the overall chassis performance. While the burning method utilizes the principle of thermal expansion and contraction to cause the inner wall of the control arm bushing ring to expand due to heat, changing the fit between the bushing and the control arm to facilitate disassembly, the high temperature alters the internal structure and steel properties of the control arm, affecting the metallographic structure of the steel and changing its strength, hardness, toughness, and other performance indicators. This makes it impossible to meet the stringent requirements of the original factory specifications for control arm stress, potentially rendering the control arm unable to withstand normal operating loads and posing a potential threat to vehicle safety.

[0064] Therefore, existing technologies, when dealing with rubber sleeves with protective flanges, have limitations in various methods, making it difficult to complete effective disassembly and assembly without damaging the support arm and ensuring the original factory specifications. To address this predicament, the following technical solution is provided:

[0065] Example 1

[0066] This embodiment 1 provides a device for removing and installing rubber bushings on vehicle chassis control arms, such as... Figures 4-8As shown, the system includes a disassembly assembly and an installation assembly. The disassembly assembly includes a support base 11 for accommodating the vehicle control arm assembly and a disassembly press head 18. A positioning assembly is movably embedded between the vehicle control arm assembly and the inner wall surface of the support base 11. A support point for supporting the vehicle control arm assembly is provided on one side of the support base 11 opposite to the positioning assembly. When the disassembly press head applies a vertically downward force to the rubber sleeve body 3 in the vehicle control arm assembly, the positioning assembly provides lateral support force to the vehicle control arm assembly. The installation assembly includes an installation base and an installation press head. Each component has a cavity that matches both ends of the outer wall 7 of the control arm bushing in the vehicle control arm assembly. When the mounting head applies a vertical downward force to the bushing body 3, the mounting base provides vertical support to the vehicle control arm assembly. Through the coordinated action of the support base 11, the positioning component, and the support point, the position of the support point and the direction of the support force of the vehicle control arm assembly are changed. Without damaging the control arm 9 or changing the original factory data, the replacement of the bushing with the protective flange is completed well. At the same time, the design of the mounting component also ensures the stability and accuracy of the bushing installation, improving the installation quality.

[0067] Specifically, please refer to Figure 4 As shown, the aforementioned support base 11 includes a through-hole receiving cavity, an outer wall 13, and a specially designed support groove 12. The receiving cavity provides a relatively stable receiving space for the automotive arm assembly and positioning assembly, ensuring the relative positional relationship of each component during disassembly. The outer wall 13 serves to protect and support the overall structure, enhancing the strength and stability of the support base 11. Simultaneously, the shape of the support groove 12 matches the shape of the arm 9, typically exhibiting a U-shaped through-groove (e.g.,...). Figure 4 As shown), this allows the support arm 9 to be placed tightly on the support groove 12. When the disassembly tool head applies a vertically downward force to the body of the rubber sleeve 3 during disassembly, the support groove 12 can provide a stable support reaction force for the support arm 9, preventing the support arm 9 from shifting or shaking during the force application process, thereby ensuring the stability and accuracy of the entire disassembly process.

[0068] Specifically, please refer to Figure 5 As shown, the positioning component includes a support liner 14, which is an arc-shaped solid. The inner diameter of the support liner 14 is the same as the diameter of the outer wall 7 of the outrigger sleeve ring. This allows the support liner 14 to fit tightly against the outer wall 7 of the outrigger sleeve ring. During the disassembly of the sleeve, when the sleeve is subjected to a downward force and tends to expand or shift outward, the support liner can effectively restrict the lateral movement of the outrigger sleeve ring, providing it with stable lateral support force and ensuring the stability of the sleeve during disassembly.

[0069] Meanwhile, the diameter of the outer wall 15 of the support liner is the same as the inner wall diameter of the support base 11, ensuring that the support liner 14 can be stably embedded between the inner wall of the support base 11 and the outer wall 7 of the outrigger sleeve without shaking or displacement. Furthermore, an annular baffle 16 is provided on the upper surface of the support liner 14, with its outer edge extending towards the outer wall of the support base 11. The main functions of the annular baffle 16 are: firstly, to enhance the positioning stability of the support liner 14 within the support base 11, preventing unnecessary rotation or movement of the support liner 14 during force application, thereby ensuring that it always provides precise and stable lateral support force to the automotive outrigger assembly; secondly, during the sleeve removal process, when the sleeve is subjected to a vertical downward force from the removal press head 18, the outrigger and support liner tend to come off downwards. The outer edge of the annular baffle 16 can provide a certain degree of obstruction to the outrigger and support liner, preventing the outrigger from excessively displacing downwards and leaving the normal operating position, thus ensuring the continuity and controllability of the removal process.

[0070] Specifically, please refer to Figure 6 As shown, the disassembly press head 18 is equipped with a positioning pin 17 at its center, the diameter of which is the same as the diameter of the rubber sleeve fixing bolt hole 5. During the disassembly operation, the positioning pin 17 can be accurately inserted into the rubber sleeve fixing bolt hole 5, achieving precise alignment between the disassembly press head 18 and the rubber sleeve body 3. This not only ensures that the force can be applied precisely to the rubber sleeve body 3, avoiding uneven force on the rubber sleeve due to deviation of the force application point, but also plays a certain guiding role during the disassembly process, allowing the rubber sleeve to come out in a predetermined direction.

[0071] Meanwhile, the diameter of the outer wall of the disassembly clamp head 18 is smaller than the diameter of the inner wall 6 of the support arm rubber sleeve ring, meaning the disassembly clamp head 18 and the inner wall 6 of the support arm rubber sleeve ring are in clearance fit, and the length of the outer wall of the disassembly clamp head 18 is greater than or equal to the length of the inner wall 6 of the support arm rubber sleeve ring. This dimensional design prevents the disassembly clamp head from damaging the inner wall of the rubber sleeve ring when it is inserted into the support arm rubber sleeve ring, ensuring effective force transmission. When a force is applied vertically downwards, the clearance fit prevents the force from being dispersed or shifted during transmission, ensuring that the force is applied evenly to the inner wall of the rubber sleeve, and more efficiently pushing the rubber sleeve out of the support arm 9. At the same time, the longer outer wall provides more comprehensive and stable support and pushing force for the rubber sleeve, avoiding deformation or damage to the rubber sleeve due to uneven local force.

[0072] In this embodiment, a disassembly press head flange 19 is provided at the end of the disassembly press head 18 away from the positioning pin 17. The disassembly press head flange 19 extends towards the outer wall of the support base 11, and its main function is to facilitate the connection and force bearing with external equipment (such as a press). During disassembly, the disassembly press head flange 19 can be stably connected to components such as the hydraulic cylinder push rod of the press. The disassembly press head flange 19 also increases the force-bearing area, ensuring that the externally applied pressure can be accurately transmitted to the disassembly press head and then act on the rubber sleeve body. In addition, the extended design of the disassembly press head flange 19 increases the stability and reliability of the connection, preventing loosening or detachment during the application of force, and ensuring the continuity of the disassembly process.

[0073] For the specific structure of the installation components, please refer to Figure 7 and Figure 8 As shown, the aforementioned mounting base includes a support ring 20, a positioning ring 21, and a mounting base body 23 (as shown). Figure 7 As shown in the diagram, the support ring 20 is located on the end face of the mounting base body 23, forming a mounting cavity together with the mounting base body 23. During the installation of the rubber sleeve, the lower end face of the outrigger rubber sleeve is in close contact with the support ring 20, which provides stable vertical support. This ensures that the rubber sleeve maintains a vertical and stable position during installation, preventing it from tilting or shifting due to uneven force, thus ensuring the accuracy of the rubber sleeve installation.

[0074] The positioning ring 21 is connected to the outer edge of the support ring 20, with its other end extending outward. The inner diameter of the positioning ring 21 is consistent with the outer diameter of the outer wall 7 of the control arm bushing ring. During installation, when the mounting head applies a vertically downward force to the bushing body 3, the positioning ring 21 can precisely limit the horizontal displacement of the control arm bushing ring, ensuring it remains in the correct installation position. This prevents the bushing from becoming eccentric or misaligned during pressing, ensuring the bushing is accurately installed into the control arm bushing ring. Simultaneously, the positioning ring and the support ring work together to enhance the support and positioning capabilities of the entire mounting base for the automotive control arm assembly, making the installation process more stable and reliable.

[0075] For installing the press head, such as Figure 8 As shown, it includes a crimping ring 24, a positioning inner wall 25, and a positioning outer wall 26. The diameter of the positioning inner wall 25 is the same as the minor diameter of the outer protective flange of the rubber sleeve body 3, and the diameter of the positioning outer wall 26 is the same as the major diameter of the outer protective flange of the rubber sleeve body 3. During the installation of the rubber sleeve, when the installation press head applies a vertically downward force to the rubber sleeve body, the positioning inner wall 25 can accurately fit onto the outer protective flange 2 of the rubber sleeve, achieving precise radial positioning of the rubber sleeve. This ensures that the rubber sleeve maintains the correct horizontal position during installation, preventing the rubber sleeve from becoming eccentric or tilted when pressed into the support arm rubber sleeve ring, thus ensuring the accuracy of installation.

[0076] The crimping ring 24 overlaps and contacts the outer protective flange 2 of the rubber sleeve, and its function is to effectively transmit pressure. When the mounting head is subjected to downward pressure from the hydraulic cylinder push rod, the crimping ring 24 transmits the pressure evenly to the outer protective flange 2 of the rubber sleeve. Since the outer protective flange of the rubber sleeve and the outer wall of the rubber sleeve are an integral structure, the pressure is then evenly applied to the outer wall of the rubber sleeve, pushing the rubber sleeve into the rubber sleeve ring of the support arm.

[0077] The bottom wall of the positioning cavity 25 for installing the press head is provided with a positioning through hole. When pressing the rubber sleeve body 3, this positioning through hole is concentric with the rubber sleeve fixing bolt hole 5 opened on the upper end face of the rubber sleeve body 3 (e.g., Figure 8 (As shown). This achieves precise axial positioning during the installation of the rubber sleeve. When the installation press head applies a downward force to the rubber sleeve, the concentric relationship between the positioning through hole and the rubber sleeve fixing bolt hole 5 ensures that the installation press head can accurately position the center of the rubber sleeve, so that the force can be evenly transmitted along the central axis of the rubber sleeve, avoiding skewing or displacement of the rubber sleeve during the pressing into the support arm, thereby ensuring the accuracy of the rubber sleeve installation position.

[0078] Example 2

[0079] In practice, the shape and size of the outriggers vary between different brands and vehicle models. Based on the specific outrigger shape of the vehicle model, a corresponding support groove 12 can be machined, such as... Figure 15 and Figure 16 As shown, the rest of the structure is exactly the same.

[0080] Example 3

[0081] This embodiment 3 provides another device for disassembling and assembling vehicle chassis control arm bushings, based on the technical solutions of embodiment 1 or embodiment 2. The difference lies in the structure of the positioning component. In this embodiment, as shown... Figures 17-18 As shown, the positioning assembly includes multiple positioning screws 28, and positioning holes 27 that are threadedly matched with the positioning screws 28 are provided on the wall surface of the support base 11. The positioning holes 27 are distributed on the wall surface opposite to the support groove 12. When the vehicle arm assembly is placed in the support base 11, the positioning screws 28 are screwed into the internal threads of the support base 11 to abut against the vehicle arm assembly. The ends of the positioning screws 28 will provide lateral support force for the support liner or the vehicle arm assembly.

[0082] Example 4

[0083] This embodiment 4 provides another device for disassembling and assembling vehicle chassis control arm bushings, based on the technical solution of embodiment 3. The difference is that, in this embodiment, as shown... Figure 19As shown, the positioning assembly also includes a support liner 14, which is embedded between the inner wall of the support base 11 and the outer wall 7 of the arm bushing, and is located on the same side as the positioning hole 27. When the vehicle arm assembly is placed in the support base 11, the positioning screw 28 is screwed into the internal thread of the support base 11 to press against the support liner 14 and the vehicle arm assembly. The support liner 14 and the positioning screw 28 provide lateral support force at the same time, so that the disassembly assembly can better complete the replacement of the bushing with the protective flange.

[0084] The disassembly and assembly process of this utility model is as follows:

[0085] like Figures 9-12 As shown, the specific disassembly process is as follows:

[0086] First, place the support arm 9 and the rubber sleeve assembly into the support base 11, ensuring that the support arm 9 is in close contact with the support groove 12;

[0087] Next, the support liner 14 is placed between the outer wall 7 of the arm sleeve ring and the inner wall of the support base 11. The positioning pin 17 at the center of the disassembly press head 18 is inserted into the sleeve fixing bolt hole 5. The hydraulic push rod of the press cylinder is used to apply downward pressure to the disassembly press head 18. At this time, the support groove 12 applies an upward reaction force, causing the arm and sleeve combination to tend to tilt.

[0088] Due to the function of the support liner 14, its inner wall provides a backward support force to the outer wall 7 of the support arm rubber sleeve ring, while the inner wall of the support base 11 provides a forward support force to the outer wall protective flange 2 of the rubber sleeve. At this time, the rubber sleeve support arm assembly and the rubber sleeve disassembly tool tend to be stable.

[0089] As the hydraulic push rod of the cylinder descends, the rubber sleeve is gradually pressed out from inside the support arm, completing the disassembly. During this process, the external forces acting on the rubber sleeve and the rubber sleeve disassembly tool assembly tend to be balanced; the internal forces acting on the rubber sleeve are such that when the downward pressure applied by the press head is greater than the friction between the rubber sleeve and the support arm, the rubber sleeve will slide out from the inner wall of the support arm.

[0090] like Figures 13-14 As shown, the specific installation process is as follows:

[0091] First, place the mounting base in place, then place the support arm on the mounting base to ensure a secure connection between the support arm and the mounting base, thus preventing issues such as uneven pressure or slippage during subsequent operations.

[0092] Then, the mounting head is installed, and the crimping ring 24 of the mounting head overlaps and contacts the outer protective flange 2 of the rubber sleeve. Pressure is applied downward by the hydraulic cylinder push rod. This pressure is the downward pressure of the hydraulic cylinder push rod. At the same time, the hydraulic press generates a reaction force to resist the downward pressure. The mounting head transmits the pressure to the outer protective flange 2 of the rubber sleeve. Since the outer protective flange 2 of the rubber sleeve and the outer wall of the rubber sleeve are an integral structure, the pressure is further transmitted to the outer wall of the rubber sleeve. At the same time, since the mounting head does not contact the rubber part of the rubber sleeve, no pressure is applied to the rubber part, thus preventing damage to the rubber sleeve.

[0093] As the rubber sleeve contacts the inner wall 6 of the control arm rubber sleeve ring, friction is generated between them. When the downward pressure exceeds the friction between the rubber sleeve and the inner wall 6, the rubber sleeve descends into the control arm rubber sleeve ring until it is fully installed in the correct position, thus completing the rubber sleeve installation process. Throughout the process, the positioning ring 21 applies a reaction force to the vehicle control arm, providing stable support and ensuring a safe, stable, and accurate installation.

[0094] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A device for disassembling the rubber sleeve of a chassis swing arm of a vehicle, characterized in that, The utility model relates to a kind of automobile arm assembly dismounting and installing device, including: Dismounting assembly, the dismounting assembly includes support base (11) for accommodating automobile support arm assembly and dismounting press head (18); The inner wall surface between the automobile support arm assembly and the support base (11) is movably embedded with positioning assembly, and the support base (11) is provided with support point for supporting the automobile support arm assembly on the side relative to the positioning assembly; When the dismounting press head (18) exerts vertical downward force on the rubber sleeve body (3) in the automobile support arm assembly, the positioning assembly provides lateral support force to the automobile support arm assembly; Mounting assembly, the mounting assembly includes mounting base and mounting press head, and the mounting base and the mounting press head are respectively provided with cavities matched with the outer wall of the arm rubber sleeve ring in the automobile support arm assembly, and the mounting base provides vertical support force to the automobile support arm assembly when the mounting press head exerts vertical downward force on the rubber sleeve body (3).

2. A device for disassembling the rubber sleeve of the swing arm of a vehicle chassis according to claim 1, characterized in that, The automobile support arm assembly includes arm rubber sleeve ring in the cavity of the support base (11), and the positioning assembly includes support pad (14); Wherein, the support pad (14) is arc-shaped solid, and the inner wall diameter of the support pad (14) is consistent with the outer wall diameter of the arm rubber sleeve ring, and the support pad outer wall (15) of the support pad (14) is consistent with the inner wall diameter of the support base (11).

3. A device for disassembling the rubber sleeve of the swing arm of a vehicle chassis according to claim 2, characterized in that, The automobile support arm assembly further includes arm (9), and the wall surface of the support base (11) is provided with support groove (12) matched with the arm (9), and the support groove (12) provides support point for the arm (9).

4. A device for disassembling the rubber sleeve of the swing arm of a vehicle chassis according to claim 3, characterized in that, The upper end surface of the support pad (14) is further provided with annular baffle (16), and the outer edge of the annular baffle (16) extends to the outer wall of the support base (11).

5. A device for disassembling the rubber sleeve of the swing arm of a vehicle chassis according to claim 3, characterized in that, The upper end surface of the rubber sleeve body (3) is provided with rubber sleeve fixing bolt hole (5), and the dismounting press head (18) is provided with positioning pin (17) matched with the rubber sleeve fixing bolt hole (5).

6. A device for disassembling the rubber sleeve of the swing arm of a vehicle chassis according to claim 5, characterized in that, The outer wall diameter of the dismounting press head (18) is less than the inner wall diameter of the arm rubber sleeve ring, forming clearance fit, and the outer wall length of the dismounting press head (18) is greater than or equal to the inner wall length of the arm rubber sleeve ring.

7. A device for disassembling the rubber sleeve of the swing arm of a vehicle chassis according to claim 6, characterized in that, The end of the dismounting press head (18) away from the positioning pin (17) is provided with dismounting press head flange (19), and the dismounting press head flange (19) extends to the outer wall of the support base (11).

8. A device for disassembling the rubber sleeve of a swing arm of a vehicle chassis according to any one of claims 2-7, characterized in that, The mounting base includes support ring (20), positioning ring (21) and mounting base body (23); The support ring (20) is located at the end surface of the mounting base body (23) to form mounting cavity (22), and the lower end surface of the arm rubber sleeve ring is in contact with the support ring (20); Wherein, the positioning ring (21) is connected to the outer edge of the support ring (20), and the other end of the positioning ring (21) extends outward.

9. A device for disassembling the rubber sleeve of the swing arm of a vehicle chassis according to claim 8, characterized in that, The mounting press head includes positioning cavity, and the positioning inner wall (25) of the positioning cavity is consistent in diameter with the small diameter of the rubber sleeve outer wall protection flange (2) of the rubber sleeve body (3).

10. A device for disassembling the rubber sleeve of the swing arm of a vehicle chassis according to claim 9, characterized in that, The bottom wall surface of the positioning cavity for installing the press head is provided with a positioning through hole, and when the rubber sleeve body (3) is pressed, the positioning through hole is concentric with the rubber sleeve fixing bolt hole (5) provided on the upper end surface of the rubber sleeve body (3).

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