Positioning device for third cylinder of shock absorber
Through the design of the guide block and positioning block kit, the problems of low assembly efficiency and insufficient accuracy of the third cylinder of the shock absorber are solved, and an efficient and accurate assembly process is achieved, key components on the second cylinder are protected, and the overall performance of the shock absorber is improved.
Patent Information
- Application Number
- CN202422659888.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-10-31
AI Technical Summary
In the prior art, the assembly efficiency of the third cylinder of the shock absorber is low and it is easy to damage the washer and O-ring on the second cylinder, resulting in inadequate assembly and affecting the performance of the shock absorber.
The guide block and positioning block kit are adopted. The guide block guides the assembly of the third cylinder through the guide surface. The positioning block kit ensures assembly accuracy and efficiency through the positioning ring and the height-adjustment ring, and the connection part is arranged to avoid scratching the third cylinder from the plug.
The assembly efficiency and accuracy of the third cylinder of the shock absorber is improved, the washer and O-ring on the second cylinder are protected, and the performance damage of the shock absorber due to inappropriate size is avoided.
Smart Images
Figure CN223251480U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of positioning devices, and in particular to a positioning device for a third cylinder of a shock absorber. Background Art
[0002] With the development of the automotive industry, people's requirements for automobile safety and comfort are becoming more and more refined. Shock absorbers are one of the key parts of a car, responsible for many important performance of the vehicle, providing elastic support for the vehicle body and load mass and determining the vehicle's carrying capacity. At the same time, it ensures the comfort and stability of the vehicle's driving and improves the reliability and life of various vehicle components. Since most new energy vehicles use electronically controlled chassis, and electronically controlled shock absorbers are an important component to improve chassis performance, shock absorber installation has become one of the most important links.
[0003] From the inside to the outside, the shock absorber consists of an inner cylinder, a middle cylinder, and an outer cylinder, namely the second cylinder, the third cylinder, and the first cylinder. The main assembly methods for assembling the third cylinder onto the second cylinder are manual operation and visual measurement. These two operation methods are inefficient, and the alignment of the third cylinder is deviated, resulting in improper assembly, which in turn damages the gasket and O-ring on the second cylinder and affects the performance of the shock absorber. Therefore, a positioning device is urgently needed to solve the above problems and improve assembly efficiency. Utility Model Content
[0004] In order to solve the problem that the gasket and O-ring on the second cylinder are easily damaged during the assembly of the third cylinder, the present application provides a positioning device for the third cylinder of the shock absorber.
[0005] The present application provides a positioning device for the third cylinder of a shock absorber, which adopts the following technical solution:
[0006] A positioning device for a third tube of a shock absorber, the shock absorber including a second tube and a third tube from the inside out, the positioning device including a guide block, the guide block being arranged at one end of the second tube, the guide block being provided with a guide surface for guiding the third tube to be assembled onto the second tube, the outer diameter of the guide block being fitted to the inner diameter of the third tube, and the center lines of the guide block, the second tube and the third tube coinciding.
[0007] By adopting the above technical solution, the end with the larger inner diameter of the guide block is installed on the second tube, and then the third tube is assembled to the second tube along the guide surface of the guide block, so that the center lines of the guide block, the second tube and the third tube coincide. The setting of the guide surface guides the assembly of the third tube, facilitates the assembly of the third tube to the second tube, and improves the overall assembly efficiency.
[0008] Optionally, a slot is provided on the guide block, and the guide block is engaged with the second cylinder via the slot.
[0009] By adopting the above technical solution, the provided clamping groove enables the guide block to be stably clamped on the second cylinder, ensuring that the third cylinder can be smoothly assembled on the second cylinder later.
[0010] Optionally, the positioning device also includes a positioning block kit, which includes a positioning ring and a base. The positioning ring is located in the base and is threadedly connected to the base. The end of the positioning ring away from the base is in contact with the end face of the third tube, and the positioning ring is placed on the second tube.
[0011] By adopting the above technical solution, the positioning block kit includes two parts: a positioning ring and a base. The positioning ring is rotated to move it up and down along the inner wall of the base, thereby adjusting the vertical height from the top surface of the positioning ring to the bottom surface of the base. The positioning ring is moved until it fits with the end face of the third tube, and the distance from the top surface of the positioning ring to the bottom surface of the base is measured to obtain the distance from the bottom surface of the third tube to the bottom surface of the second tube. In the subsequent assembly process, the positioning ring is placed on the second tube, and the bottom surface of the third tube is fit with the top surface of the positioning ring. This ensures that the distance from the bottom surface of the third tube to the bottom surface of the second tube remains consistent, thereby ensuring the accuracy of assembly, facilitating the assembly of large quantities of parts, and improving assembly efficiency.
[0012] Optionally, the positioning device also includes a positioning block kit, which includes a base, a positioning ring and a height adjustment ring. The end of the base close to the third tube is detachably connected to the height adjustment ring, the height adjustment ring is threadedly connected to the positioning ring, the positioning ring is placed on the second tube, and the end of the positioning ring away from the base is in contact with the third tube.
[0013] By adopting the above technical solution, the positioning block kit includes three parts: a positioning ring, a height adjustment ring and a base. The height adjustment ring is installed on the base by magnetic attraction, and the positioning ring is rotated to move up and down along the inner wall of the base and the height adjustment ring. The setting of the height adjustment ring increases the height adjustment range of the positioning ring. The positioning ring fits with the end face of the third cylinder to ensure the accuracy of the measured values. After the parts are measured and the measured values are converted into the relative position of the tooling, it is convenient to assemble large quantities of parts, thereby improving assembly efficiency.
[0014] Optionally, the height adjustment ring is fixed to the base by magnetic attraction and has the same inner diameter as the base.
[0015] By adopting the above technical solution, when it is necessary to increase the height adjustment range of the positioning ring, the height adjustment ring is placed on the end face of the base by magnetic attraction. The magnetic fixation method ensures that the height adjustment ring can be stably set on the base. The inner diameter of the height adjustment ring is the same as that of the base, ensuring that the positioning ring can move continuously along the inner wall of the base and the height adjustment ring.
[0016] Optionally, the positioning ring is provided with a through hole for the depth gauge to pass through.
[0017] By adopting the above technical solution, the setting of the through hole makes it easy for the depth gauge to penetrate into the positioning ring, thereby accurately measuring the distance from the bottom end of the base to the top surface of the positioning ring, ensuring a smooth measurement process.
[0018] Optionally, the third tube is provided with a connecting portion, the connecting portion is provided with a connecting hole, and a plug is detachably connected to the connecting hole.
[0019] By adopting the above technical solution, a connecting portion is provided on the third tube, which makes it convenient to connect the plug to the third tube. The plug is the same size as the solenoid valve assembly, which avoids the solenoid valve assembly scratching the third tube due to unqualified size when the plug is subsequently removed and the solenoid valve assembly is installed, causing internal pressure leakage of the shock absorber and affecting the vibration reduction performance of the shock absorber.
[0020] Optionally, a fixed cover covering the plug is detachably connected to the connecting portion.
[0021] By adopting the above technical solution, the provision of the fixed cover prevents the plug from falling from the connecting portion, thereby protecting the connecting portion and the third tube.
[0022] In summary, this application includes at least one of the following beneficial technical effects:
[0023] 1. Install the end of the guide block with the larger inner diameter on the second tube, and then assemble the third tube onto the second tube along the guide surface of the guide block, so that the center lines of the guide block, the second tube, and the third tube coincide. The setting of the guide surface guides the assembly of the third tube, facilitating the assembly of the third tube onto the second tube and improving the overall assembly efficiency.
[0024] 2. The positioning block kit includes three parts: a positioning ring, a height adjustment ring, and a base. The height adjustment ring is magnetically mounted on the base. Rotating the positioning ring allows it to move up and down along the inner wall of the base and the height adjustment ring. The height adjustment ring increases the height adjustment range of the positioning ring. The positioning ring fits closely with the end face of the third cylinder, ensuring the accuracy of the measured values. After measuring the parts and converting the measured values into the relative position of the tooling, it is convenient to assemble large quantities of parts, thereby improving assembly efficiency.
[0025] 3. A connection portion is provided on the third tube to facilitate connection of the plug to the third tube. The plug is the same size as the solenoid valve assembly to avoid the solenoid valve assembly scratching the third tube due to unqualified size when the plug is subsequently removed and the solenoid valve assembly is installed, resulting in internal pressure leakage of the shock absorber and affecting the shock absorber's vibration reduction performance. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 This is a schematic diagram of the structure of Example 1 of the present application;
[0027] Figure 2 This is an explosion diagram of Example 1 of the present application;
[0028] Figure 3 This is a cross-sectional view of the second tube, the third tube, and the guide block in Example 1 of the present application;
[0029] Figure 4 for Figure 3 An enlarged schematic diagram of part B;
[0030] Figure 5 This is a cross-sectional view of the second cylinder, guide block, and positioning block assembly in Example 1 of the present application;
[0031] Figure 6 for Figure 2 An enlarged schematic diagram of part A;
[0032] Figure 7 This is a partial cross-sectional view of Example 1 of the present application, used to illustrate the positional relationship of the plug installed on the second cylinder;
[0033] Figure 8 This is a cross-sectional view of the second cylinder, guide block and positioning block kit in Example 2 of the present application.
[0034] Figure numerals: 1. second tube; 2. third tube; 3. first tube; 4. guide block; 5. positioning block kit; 6. guide surface; 7. guide arc surface; 8. O-ring; 9. gasket; 10. slot; 11. positioning ring; 12. base; 13. height adjustment ring; 14. through hole; 15. connecting part; 16. connecting hole; 17. plug; 18. fixing cover; 19. solenoid valve assembly. DETAILED DESCRIPTION
[0035] The following is combined with Figure 1-8 This application is described in further detail.
[0036] Example 1
[0037] A positioning device for the third cylinder of a shock absorber, reference Figure 1 and Figure 2 The shock absorber includes a second tube 1, a third tube 2 and a first tube 3 from the inside to the outside, and the third tube 2 is placed on the second tube 1.
[0038] refer to Figure 1 and Figure 3 The positioning device includes a guide block 4 and a positioning block kit 5. The guide block 4 is arranged at the top end of the second tube 1. Figure 4As shown, the guide block 4 is provided with a guide surface 6 for guiding the third tube 2 to be assembled onto the second tube 1, and a guide arc surface 7 is provided on the guide block 4. When the third tube 2 is assembled onto the second tube 1, the guide arc surface 7 protects the O-ring 8 and the gasket 9 on the third tube 2. The outer diameter of the guide block 4 fits the inner diameter of the third tube 2. The center lines of the guide block 4, the second tube 1 and the third tube 2 coincide. A card slot 10 is provided on the guide block 4, and the guide block 4 is clamped with the second tube 1 through the card slot 10.
[0039] refer to Figure 5 The positioning block kit 5 includes a positioning ring 11 and a base 12. The base 12 is a circular ring structure. The positioning ring 11 is located in the base 12 and is threadedly connected to the base 12. Rotating the positioning ring 11 can make it move up and down along the inner wall of the base 12, thereby adjusting the vertical height from the top surface of the positioning ring 11 to the bottom surface of the base 12, and obtaining the value corresponding to the vertical height. The end of the positioning ring 11 away from the base 12 is in contact with the end surface of the third tube 2, and the positioning ring 11 is placed on the second tube 1. A through hole 14 for the depth gauge to pass through is opened on the positioning ring 11. The depth gauge is inserted along the through hole 14 to measure the distance from the top surface of the positioning ring 11 to the bottom surface of the base 12. The measured value is the distance from the bottom surface of the third tube 2 to the bottom surface of the second tube 1.
[0040] refer to Figure 6 and Figure 7 The third tube 2 is provided with a connecting portion 15, and the connecting portion 15 is provided with a connecting hole 16. The connecting hole 16 is detachably connected to a plug 17, and the plug 17 is arranged on the connecting hole 16 by a snap-fitting manner. The plug 17 is the same size as the solenoid valve assembly 19, so as to avoid that the solenoid valve assembly 19 scratches the third tube 2 due to inappropriate size after the plug 17 is replaced with the solenoid valve assembly 19. The plug 17 is made of elastic material, and the elastic material is easy to deform, which makes it easy to snap the plug 17 into the connecting hole 16, and the easy deformation of the plug 17 can reduce damage to the connecting portion 15. A fixed cover 18 covering the plug 17 is detachably connected to the connecting portion 15, and the fixed cover 18 is arranged on the connecting portion 15 by a threaded connection to prevent the plug 17 from falling from the connecting portion 15.
[0041] The implementation principle of Example 1 of the present application is: the end with the larger inner diameter of the guide block 4 is placed on the second tube 1, and a slot 10 is provided on the guide block 4. The second tube 1 is inserted into the slot 10 and fits with the guide block 4. There is a guide surface 6 on the guide block 4, and a guide arc surface 7 is provided on the guide block 4. The third tube 2 is assembled to the second tube 1 along the guide surface 6 and the guide arc surface 7 of the guide block 4. When measurement is required, the depth gauge is inserted into the through hole 14 on the positioning ring 11, and the positioning ring 11 is rotated to move up and down along the inner wall of the base 12. The positioning ring 11 fits with the end face of the third tube 2, and the plug 17 is filled in the connecting hole 16 of the connecting part 15. The plug 17 is fixed to the third tube 2 by the fixing cover 18.
[0042] Example 2
[0043] refer to Figure 7 , a positioning device for the third tube of a shock absorber, which is different from Example 1 in that the positioning block kit 5 is different from Example 1. The positioning block kit 5 includes a base 12, a positioning ring 11 and a height adjustment ring 13. The height adjustment ring 13 is located on the top surface of the base 12 and has the same inner diameter as the base 12. The height adjustment ring 13 is fixed to the base 12 by magnetic attraction. The height adjustment ring 13 is threadedly connected to the positioning ring 11. The positioning ring 11 is placed on the second tube 1, and the end of the positioning ring 11 away from the base 12 is in contact with the third tube 2.
[0044] The implementation principle of Example 2 of the present application is: the height adjustment ring 13 is installed on the base 12 by magnetic attraction, and the positioning ring 11 is rotated to move it up and down along the inner wall of the height adjustment ring 13, thereby adjusting the vertical height from the top surface of the positioning ring 11 to the bottom surface of the base 12 to obtain a value corresponding to the vertical height, the positioning ring 11 is fitted with the end face of the third tube 2, the positioning ring 11 is sleeved on the second tube 1, and the height adjustment ring 13 is added to the positioning block kit 5, which further increases the height adjustment range of the positioning ring 11.
[0045] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.
Claims
1. A positioning device for a third cylinder of a shock absorber, wherein the shock absorber comprises a second cylinder (1) and a third cylinder (2) from the inside to the outside, characterized in that: The positioning device comprises a guide block (4), which is arranged at one end of the second cylinder (1). The guide block (4) is provided with a guide surface (6) for guiding the third cylinder (2) to be assembled on the second cylinder (1). The outer diameter of the guide block (4) fits the inner diameter of the third cylinder (2), and the center lines of the guide block (4), the second cylinder (1) and the third cylinder (2) coincide with each other.
2. A positioning device for the third cylinder of a shock absorber according to claim 1, characterized in that: A clamping slot (10) is provided on the guide block (4), and the guide block (4) is clamped with the second cylinder (1) via the clamping slot (10).
3. The positioning device for the third cylinder of a shock absorber according to claim 1, characterized in that: The positioning device further comprises a positioning block kit (5), the positioning block kit (5) comprising a positioning ring (11) and a base (12), the positioning ring (11) being located in the base (12) and being threadedly connected to the base (12), the end of the positioning ring (11) away from the base (12) being in contact with the end surface of the third cylinder (2), and the positioning ring (11) being placed on the second cylinder (1).
4. The positioning device for the third cylinder of a shock absorber according to claim 1, characterized in that: The positioning device further comprises a positioning block kit (5), the positioning block kit (5) comprising a base (12), a positioning ring (11) and a height adjustment ring (13), the end of the base (12) close to the third cylinder (2) is detachably connected to the height adjustment ring (13), the height adjustment ring (13) is threadedly connected to the positioning ring (11), the positioning ring (11) is placed on the second cylinder (1), and the end of the positioning ring (11) away from the base (12) is in contact with the third cylinder (2).
5. The positioning device for the third cylinder of a shock absorber according to claim 4, characterized in that: The height adjustment ring (13) is fixed to the base (12) by magnetic attraction and has the same inner diameter as the base (12).
6. The positioning device for the third cylinder of a shock absorber according to claim 4, characterized in that: The positioning ring (11) is provided with a through hole (14) for the depth gauge to pass through.
7. The positioning device for the third cylinder of a shock absorber according to claim 1, characterized in that: The third tube (2) is provided with a connecting portion (15), the connecting portion (15) is provided with a connecting hole (16), and a plug (17) is detachably connected to the connecting hole (16).
8. The positioning device for the third cylinder of a shock absorber according to claim 7, characterized in that: The connecting portion (15) is detachably connected to a fixed cover (18) that covers the plug (17).