Shock absorber quality detection tool
By designing a shock absorber quality inspection fixture with limit components and a laser rangefinder sensor, the problem of low efficiency of traditional inspection devices has been solved, enabling efficient and convenient inspection of multiple sizes and models, and improving inspection accuracy and duct assembly safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-09
- Publication Date
- 2026-03-17
AI Technical Summary
Traditional shock absorber testing devices require a large amount of manpower, have low testing efficiency, and can only perform single-item data testing, which cannot meet the modern automotive industry's demand for efficient and convenient quality control.
Design a shock absorber quality inspection fixture. By pre-adjusting the opening width of the fixing block to match the size of the shock absorber through a limiting component, and combining it with a laser rangefinder sensor for distance measurement and data analysis, a stable clamping and accurate length measurement of multiple sets of fixing blocks can be achieved.
It improves the efficiency and accuracy of shock absorber testing, reduces testing costs, enhances the safety of duct assembly, and adapts to the testing needs of various sizes and models.
Smart Images
Figure CN224004385U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of shock absorber testing technology, specifically to a shock absorber quality testing fixture. Background Technology
[0002] Inspection tools are simple tools used by industrial manufacturing enterprises to control various dimensions of products, improve production efficiency and control quality. They are suitable for mass-produced products, such as automotive parts. The automotive industry is developing rapidly, which has greatly increased the requirements for automotive quality and comfort. Therefore, during the production process, it is necessary to use inspection tools to promptly remove unqualified products and prevent defective products from entering the next production process and becoming part of the car.
[0003] Shock absorbers are used to suppress the oscillations caused by the rebound of springs after absorbing shocks and the impact from the road surface. They are widely used in automobiles to accelerate the attenuation of vibrations in the chassis and body, thereby improving the ride smoothness of the vehicle. When driving over uneven roads, although the shock-absorbing springs can filter out road vibrations, the springs themselves will still have reciprocating motion. Shock absorbers are used to suppress this spring bounce. To ensure the proper use of shock absorbers, workers will inspect them. Traditional testing devices mostly rely on manual recording of test data, which requires a lot of manpower and is time-consuming. On the other hand, traditional testing devices can only perform one data test, which is not convenient to use. Therefore, it is particularly important to improve existing testing fixtures and design a new shock absorber quality testing fixture to solve the above-mentioned technical defects and improve the overall practicality of the testing fixture. Utility Model Content
[0004] The purpose of this utility model is to provide a shock absorber quality inspection fixture. When inspecting a shock absorber, the fixing blocks are pre-adjusted according to the size of the shock absorber to ensure that the opening width of multiple sets of fixing blocks matches the diameter or width of the shock absorber, which facilitates the fixing of the shock absorber and increases the efficiency of shock absorber inspection. At the same time, through the design of a laser distance sensor, the built-in algorithm calculates the distance to the shock absorber, records the calculated distance data, and performs subsequent data analysis and processing, thereby enabling the measurement of the shock absorber length and improving the overall safety of duct assembly, thus solving the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A shock absorber quality inspection fixture includes an inspection table body. Two sets of moving platforms are slidably connected to the top of the inspection table body. The top of the moving platforms is provided with a limiting component. Each of the two sets of moving platforms is provided with a laser range sensor at one end close to each other. The two sets of laser range sensors are designed in an alternating structure on the outside of the two sets of moving platforms.
[0007] The limiting assembly consists of a fixed cylinder, multiple sets of movable rods, multiple sets of connecting rods, and multiple sets of fixing blocks. The fixed cylinder is fixedly connected to the top of the movable platform. The multiple sets of movable rods are slidably connected to the outside of the fixed cylinder. The connecting rod is fixedly connected to the end of the movable rod extending to the outside of the fixed cylinder. The fixing block is fixedly connected to the end of the connecting rod away from the movable rod.
[0008] As a preferred embodiment of this utility model, a guide rail is fixedly connected to the top of the main body of the testing platform and to the bottom of the two sets of moving platforms, and the moving platforms and the guide rails are slidably connected.
[0009] As a preferred embodiment of this utility model, the main body of the testing platform is internally rotatably connected to a first positive and negative lead screw, and the moving platform moves axially on the outer side of the first positive and negative lead screw via ball bearings. The front end of the first positive and negative lead screw is fixedly connected to the drive end of a drive motor.
[0010] As a preferred embodiment of this utility model, a rotating disk is rotatably connected inside the fixed cylinder, and multiple sets of guide grooves are formed on the outer side of the rotating disk, with the guide grooves having an arc-shaped structure design.
[0011] As a preferred embodiment of this utility model, the movable rod extends into the interior of the guide groove and is fixedly connected to a guide rod, and the guide rod and the guide groove are slidably connected.
[0012] As a preferred embodiment of this utility model, the rotating disk extends to the outside of the fixed cylinder and is fixedly connected to a worm gear, and the outside of the worm gear is meshed with a worm. The worm gear and the worm are connected to the fixed cylinder through a connecting shell.
[0013] As a preferred embodiment of this utility model, two sets of buffer bars are fixedly connected to the inner side of the fixing block, and pressure sensors are provided at the ends of the two sets of fixing cylinders that are close to each other. A connecting seat is provided at the middle of the top of the main body of the detection platform, and two sets of indicator rods are slidably connected to the outer side of the connecting seat. A scale bar is provided at the top of the connecting seat, and a second positive and negative lead screw is rotatably connected inside the connecting seat. The indicator rods move axially outside the second positive and negative lead screws through ball bearings.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] 1. In this utility model, through the design of the limiting component, when testing the shock absorber, the fixing block is pre-adjusted according to the size of the shock absorber to be tested, ensuring that the opening width of multiple sets of fixing blocks matches the diameter or width of the shock absorber, which facilitates the fixing of the shock absorber, increases the efficiency of shock absorber testing, and can test shock absorbers of various sizes and models, reducing the cost of changing testing fixtures.
[0016] 2. In this utility model, through the design of a laser rangefinder sensor, the laser rangefinder sensor is initialized, including calibration and setting the measurement range. The sensor emits a laser beam, which illuminates the predetermined measurement point of the shock absorber. After the laser beam is reflected back by the shock absorber, the sensor receives these reflected lights. Based on the received reflected light signals, the sensor calculates the distance to the shock absorber through a built-in algorithm, records the calculated distance data, and performs subsequent data analysis and processing, thereby enabling the measurement of the length of the shock absorber. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the structure of the mobile platform of this utility model;
[0019] Figure 3 This is a schematic diagram of the limiting component structure of this utility model;
[0020] Figure 4 This is a schematic diagram of the rotating disk structure of this utility model.
[0021] In the diagram: 1. Main body of the testing platform; 2. Moving platform; 3. Limiting component; 4. Laser rangefinder sensor; 5. Fixed cylinder; 6. Moving rod; 7. Connecting rod; 8. Fixed block; 9. Guide rail; 10. First positive and negative lead screw; 11. Rotary disk; 12. Guide groove; 13. Guide rod; 14. Worm gear; 15. Worm; 16. Buffer bar; 17. Pressure sensor; 18. Connecting seat; 19. Scale bar; 20. Second positive and negative lead screw; 21. Indicator rod. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0023] Example:
[0024] Please see Figures 1-4 This utility model provides a technical solution:
[0025] A shock absorber quality inspection fixture includes an inspection table body 1, two sets of movable tables 2 are slidably connected to the top of the inspection table body 1, a limiting component 3 is provided on the top of the movable tables 2, and a laser range sensor 4 is provided at the end of each of the two sets of movable tables 2 that is close to each other. The two sets of laser range sensors 4 are designed in an interlaced structure on the outside of the two sets of movable tables 2.
[0026] The limiting component 3 consists of a fixed cylinder 5, multiple sets of moving rods 6, multiple sets of connecting rods 7, and multiple sets of fixing blocks 8. The fixed cylinder 5 is fixedly connected to the top of the moving platform 2. The multiple sets of moving rods 6 are all slidably connected to the outside of the fixed cylinder 5. The connecting rods 7 are fixedly connected to one end of the moving rods 6 extending to the outside of the fixed cylinder 5. The fixing blocks 8 are fixedly connected to the end of the connecting rods 7 away from the moving rods 6.
[0027] Furthermore, a guide rail 9 is fixedly connected to the top of the main body 1 of the testing platform and to the bottom of the two sets of moving platforms 2. The moving platforms 2 are slidably connected to the guide rail 9. A first positive and negative lead screw 10 is rotatably connected inside the main body 1 of the testing platform. The moving platform 2 moves axially on the outside of the first positive and negative lead screw 10 through ball bearings. The front end of the first positive and negative lead screw 10 is fixedly connected to the drive end of the drive motor. When the moving platform 2 is displaced, it can be guided by the guide rail 9 so that the moving platform 2 can be displaced stably. The first drive motor is started to drive the first positive and negative lead screw 10 to rotate, so that the moving platform 2 can be displaced.
[0028] Secondly, a rotating disk 11 is rotatably connected inside the fixed cylinder 5. Multiple guide grooves 12 are opened on the outer side of the rotating disk 11. The guide grooves 12 are designed with an arc shape. The moving rod 6 extends into the inside of the guide groove 12 and is fixedly connected to a guide rod 13. The guide rod 13 and the guide groove 12 are slidably connected. When the guide groove 12 is displaced, it can drive the guide rod 13 to move, so that the moving rod 6 can move, which in turn drives the connecting rod 7 to move, thereby allowing the fixed block 8 to move.
[0029] Furthermore, the rotating disk 11 extends to the outside of the fixed cylinder 5 and is fixedly connected to a worm gear 14. The outside of the worm gear 14 is meshed with a worm 15. The worm gear 14 and the worm 15 are connected to the fixed cylinder 5 through a connecting shell. Rotating the worm 15 drives the worm gear 14 to rotate, so that the rotating disk 11 can rotate, driving multiple sets of guide grooves 12 to move.
[0030] Furthermore, two sets of buffer strips 16 are fixedly connected to the inner side of the fixed block 8, and pressure sensors 17 are provided at the ends of the two sets of fixed cylinders 5 that are close to each other. A connecting seat 18 is provided at the middle of the top of the main body 1 of the detection platform. Two sets of indicator rods 21 are slidably connected to the outer side of the connecting seat 18. A scale bar 19 is provided at the top of the connecting seat 18. A second positive and negative screw 20 is rotatably connected inside the connecting seat 18. The indicator rods 21 move axially on the outer side of the second positive and negative screw 20 through ball bearings. When the fixed block 8 contacts the shock absorber, the buffer strips 16 can increase the buffer distance between the fixed block 8 and the shock absorber, preventing the fixed block 8 from damaging the surface of the shock absorber. When fixing the shock absorber, the second positive and negative screw 20 is rotated so that the two sets of indicator rods 21 can be displaced and contact the outer side of the shock absorber. The width of the shock absorber can be measured through the scale bar 19.
[0031] In this embodiment, the specific implementation scenario is as follows: In actual use, rotating the worm gear 15 drives the worm wheel 14 to rotate, causing the rotating disk 11 to rotate, which in turn causes multiple sets of guide grooves 12 to move. When the guide grooves 12 move, they can drive the guide rod 13 to move, which in turn causes the moving rod 6 to move, which in turn causes the connecting rod 7 to move, thereby allowing the fixed block 8 to move. According to the size of the shock absorber to be tested, the fixed block 8 is pre-adjusted to ensure that the opening width of the multiple sets of fixed blocks 8 matches the diameter or width of the shock absorber. The shock absorber is placed between the multiple sets of fixed blocks 8, ensuring that the center line of the shock absorber is aligned with the center line of the testing fixture. After the shock absorber is securely clamped, the testing program is started to perform quality testing on the shock absorber. Before the testing begins, the laser rangefinder 4 is initialized, including calibration and setting the measurement range. The sensor emits a laser beam, which illuminates the predetermined measurement point of the shock absorber. After the laser beam is reflected back by the shock absorber, the sensor receives the reflected light. Based on the received reflected light signal, the sensor calculates the distance to the shock absorber using a built-in algorithm, records the calculated distance data, and performs subsequent data analysis and processing. This allows for the measurement of the shock absorber's length. The pressure sensor 17 is connected to the shock absorber testing system, and necessary calibration operations are performed to ensure measurement accuracy. The testing system applies a predetermined pressure load to the shock absorber to simulate actual working conditions. The pressure sensor 17 senses the applied pressure change and converts it into a corresponding electrical signal output. The signal processing circuit amplifies and filters the electrical signal output by the sensor to obtain a stable pressure value, which is then recorded. Based on the recorded pressure data, the performance of the shock absorber is evaluated and analyzed. Compared with existing testing fixtures, this invention improves the overall practicality of the testing fixture through its design.
[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A shock absorber mass detection tooling, comprising a detection table main body (1), characterized in that: The top of the detection platform body (1) is slidably connected with two groups of moving platforms (2), the top of the moving platform (2) is provided with a limiting assembly (3), the end of the two groups of moving platforms (2) close to each other is provided with a laser ranging sensor (4), and the two groups of laser ranging sensors (4) are designed in a staggered structure outside the two groups of moving platforms (2). The limiting assembly (3) is composed of a fixed cylinder (5), a plurality of moving rods (6), a plurality of connecting rods (7) and a plurality of fixed blocks (8), the fixed cylinder (5) is fixedly connected to the top of the moving platform (2), a plurality of moving rods (6) are slidably connected to the outside of the fixed cylinder (5), the connecting rod (7) is fixedly connected to one end of the moving rod (6) extending to the outside of the fixed cylinder (5), and the fixed block (8) is fixedly connected to one end of the connecting rod (7) away from the moving rod (6).
2. The shock absorber quality detection tool according to claim 1, wherein: The top of the detection platform body (1) and the bottom of the two groups of moving platforms (2) are fixedly connected with guide rails (9), and the moving platform (2) and the guide rail (9) are slidably connected.
3. The shock absorber quality detection tool of claim 1, wherein: The inside of the detection platform body (1) is rotatably connected with a first positive and negative screw rod (10), the moving platform (2) moves axially on the outside of the first positive and negative screw rod (10) through balls, and the front end of the first positive and negative screw rod (10) is fixedly connected with the driving end of a driving motor.
4. The shock absorber quality detection tool of claim 1, wherein: The inside of the fixed cylinder (5) is rotatably connected with a rotating disc (11), a plurality of guide grooves (12) are formed in the outside of the rotating disc (11), and the guide grooves (12) are designed in an arc structure.
5. The shock absorber mass detection tool of claim 4, wherein: The moving rod (6) extending to the inside of the guide groove (12) is fixedly connected with a guide rod (13), and the guide rod (13) and the guide groove (12) are slidably connected.
6. The shock absorber mass detection tool of claim 5, wherein: The outside of the rotating disc (11) extending to the fixed cylinder (5) is fixedly connected with a worm wheel (14), the outside of the worm wheel (14) is meshedly connected with a worm (15), and the worm wheel (14) and the worm (15) are connected with the fixed cylinder (5) through a connecting shell.
7. The shock absorber quality detection tool of claim 1, wherein: The inside of the fixed block (8) is fixedly connected with two groups of buffer strips (16), the end of the two groups of fixed cylinders (5) close to each other is provided with a pressure sensor (17), the middle of the top of the detection platform body (1) is provided with a connecting seat (18), the outside of the connecting seat (18) is slidably connected with two groups of indicating rods (21), the top of the connecting seat (18) is provided with a scale bar (19), the inside of the connecting seat (18) is rotatably connected with a second positive and negative screw rod (20), and the indicating rod (21) moves axially on the outside of the second positive and negative screw rod (20) through balls.