Clamp for detecting wear degree of brake pad of motor vehicle
By designing a brake pad wear testing fixture that includes a fixing mechanism and a dust collection mechanism, the problem of unstable brake pad testing was solved, ensuring the accuracy of testing and the cleanliness of the environment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUANGGANG ANXIANG MOTOR VEHICLE INSPECTION CO LTD
- Filing Date
- 2025-07-17
- Publication Date
- 2026-06-26
AI Technical Summary
Existing motor vehicle brake pad wear testing devices lack a fixing mechanism, which leads to instability of brake pads during the testing process, increasing human error and deviation in test data.
A brake pad wear detection fixture was designed, comprising a base plate, a worktable, a fixing mechanism, a dust collection mechanism, and a detection device. The fixture uses a cylinder to drive a sliding block and a clamping block to fix the brake pads, and combines the dust collection mechanism with a motor-driven scraper to clean impurities, ensuring detection accuracy.
This method achieves stable fixation of brake pads during the testing process, reduces errors, improves the accuracy of test results, and maintains a clean working environment.
Smart Images

Figure CN224407533U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of brake pad testing devices, and more particularly to a fixture for testing the wear of motor vehicle brake pads. Background Technology
[0002] In automotive repair and maintenance workshops, fixing fixtures are used to ensure the stability of brake pads during the testing process. Technicians can fix the brake pads in the fixture to ensure that the brake pads will not move or tilt during the measurement process, thereby improving the testing accuracy. Especially when it is necessary to disassemble the brake system and measure the wear, the fixture provides a stable support platform.
[0003] The structure of a motor vehicle brake pad wear testing fixture includes a fixed housing, a sliding plate, etc. The basic working principle of the brake pad wear testing fixture is to measure the wear thickness of the brake pad by directly contacting the surface of the brake pad or by using sensor technology, so as to ensure that serious wear of the brake pad is detected in time, thereby improving driving safety.
[0004] In existing technologies, some testing devices lack a fixing mechanism, which makes it impossible to stably fix the brake pads in the testing position when testing brake pad wear. This not only increases the risk of human error during the testing process but also causes deviations in the test data, affecting the accuracy of the test results. To address this issue, a motor vehicle brake pad wear testing fixture is proposed. Utility Model Content
[0005] The present invention proposes a motor vehicle brake pad wear testing fixture, which aims to improve the problem that some existing devices do not have a function to fix the brake pads during the testing process.
[0006] To achieve the above objectives, the present invention provides the following technical solution:
[0007] A brake pad wear testing fixture for motor vehicles includes a base plate, a worktable fixedly connected to the top of the base plate, a fixing mechanism fixedly connected to the top of the worktable, a dust collection mechanism fixedly connected to the top of the worktable, a support block fixedly connected to the bottom of the support block fixedly connected to the top of the worktable, a pushing component fixedly connected to the front side of the support block, a trapezoidal block fixedly connected to the pushing component, sliding blocks fixedly connected to both sides of the trapezoidal block, a sliding component slidably connected to the outer side of the sliding block, a clamping block fixedly connected to the sliding component, and a testing device fixedly connected to the top of the worktable.
[0008] As a further description of the above technical solution:
[0009] The pushing assembly includes a cylinder, the rear side of which is fixedly connected to the front side of the support block, and the output end of the cylinder is fixedly connected to a drive block.
[0010] As a further description of the above technical solution:
[0011] The sliding assembly includes a fixed housing, the bottom of which is fixedly connected to the top of the workbench, and a sliding plate is slidably connected to the inner side of the fixed housing.
[0012] As a further description of the above technical solution:
[0013] The dust collection mechanism includes a support plate, the bottom of which is fixedly connected to the top of the workbench. A drive assembly is fixedly connected to the rear side of the support plate, and a rotating plate is fixedly connected to the drive assembly. A fixed shaft is fixedly connected to the front side of the rotating plate, and a sliding block is slidably connected to the outside of the fixed shaft. A connecting rod is fixedly connected to the front side of the sliding block, and a scraper is fixedly connected to the front side of the connecting rod.
[0014] As a further description of the above technical solution:
[0015] A dust collection box is fixedly connected to the top of the base plate, an extraction pump is fixedly connected to the input end of the dust collection box, and a dust collection pipe is fixedly connected to the input end of the extraction pump.
[0016] As a further description of the above technical solution:
[0017] The drive assembly includes a motor, the front side of which is fixedly connected to the rear side of the support plate, and the output end of the motor is fixedly connected to an output shaft.
[0018] As a further description of the above technical solution:
[0019] The bottom of the scraper is slidably connected to the top of the workbench, and the outer side of the sliding block is slidably connected to the outer side of the sliding plate.
[0020] As a further description of the above technical solution:
[0021] The outer side of the sliding plate is slidably connected to the outer side of the fixed housing, and the rear side of the rotating plate is rotatably connected to the front side of the support plate.
[0022] This utility model has the following beneficial effects:
[0023] 1. In this utility model, the cylinder drives the trapezoidal block and the outer sliding block to slide inside the sliding plate through the driving block. The sliding plate drives the clamping block to slide left and right inside the fixed housing to fix the brake pad. By fixing the brake pad, it can be ensured that the brake pad will not shift or shake during the detection process, thereby improving the accuracy of the measurement and avoiding errors caused by unstable brake pad position.
[0024] 2. In this utility model, the motor drives the fixed shaft on the front side of the rotating plate to slide in the slide block through the output shaft. The scraper on the front side of the connecting rod scrapes away the impurities during the detection process. The dust suction pipe sucks the impurities into the dust collection box through the extraction pump, keeping the working environment clean and making the detection results more accurate. Attached Figure Description
[0025] Figure 1 This is a perspective view of the motor vehicle brake pad wear testing fixture proposed in this utility model;
[0026] Figure 2 This is a schematic diagram of the dust collection box of the motor vehicle brake pad wear testing fixture proposed in this utility model;
[0027] Figure 3 for Figure 2 Enlarged view of point A in the middle;
[0028] Figure 4 for Figure 2 Enlarged view of point B in the middle.
[0029] Legend:
[0030] 1. Base plate; 2. Workbench; 3. Fixing mechanism; 4. Support block; 5. Cylinder; 6. Drive block; 7. Trapezoidal block; 8. Sliding block; 9. Fixed outer shell; 10. Sliding plate; 11. Clamping block; 12. Detection device; 13. Dust collection mechanism; 14. Support plate; 15. Motor; 16. Output shaft; 17. Rotating plate; 18. Fixed shaft; 19. Slide block; 20. Connecting rod; 21. Scraper; 22. Dust collection box; 23. Extraction pump; 24. Dust collection pipe. Detailed Implementation
[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0032] Reference Figures 1 to 3This utility model provides an embodiment of a motor vehicle brake pad wear testing fixture, including a base plate 1. The base plate 1 is the basic component of the entire brake pad wear testing fixture, which supports the entire structure and its components. A worktable 2 is fixedly connected to the top of the base plate 1. The worktable 2 is located on top of the base plate 1 and serves to place and support the brake pads to be tested. A fixing mechanism 3 is fixedly connected to the top of the worktable 2. The main function of the fixing mechanism 3 is to ensure the stable fixing of the brake pads. A dust collection mechanism 13 is fixedly connected to the top of the worktable 2. The function of the dust collection mechanism 13 is to clean the dust and debris on the worktable 2 to keep the testing area clean and avoid affecting the testing accuracy.
[0033] The fixing mechanism 3 includes a support block 4, the bottom of which is fixedly connected to the top of the workbench 2. The support block 4 supports the cylinder 5 in the pushing assembly. The pushing assembly, including the cylinder 5, is fixedly connected to the front side of the support block 4. The rear side of the cylinder 5 is fixedly connected to the front side of the support block 4. The output end of the cylinder 5 is fixedly connected to a drive block 6. The cylinder 5 outputs power through the drive block 6 to drive the sliding of the trapezoidal block 7. The pushing assembly is fixedly connected to the trapezoidal block 7. Sliding blocks 8 are fixedly connected to both sides of the trapezoidal block 7. The outer side of the sliding blocks 8 is slidably connected to the outer side of the sliding plate 10. The trapezoidal block 7 and the sliding blocks 8 slide back and forth under the drive of the cylinder 5 and the drive block 6, driving the sliding assembly to slide. The outer side of the sliding blocks 8 is slidably connected to the sliding assembly. The sliding assembly includes a fixed housing 9. The bottom of the fixed housing 9 is fixedly connected to the top of the workbench 2. The inner side of the fixed housing 9 is slidably connected to the sliding plate 10, and the outer side of the sliding plate 10 is slidably connected to the outer side of the fixed housing 9. The sliding block 8 slides on the inner side of the sliding plate 10, driving the sliding plate 10 and the front clamping block 11 to slide back and forth to fix the brake pad. The sliding assembly is fixedly connected to the clamping block 11, which is responsible for directly clamping the brake pad for fixing during testing. The top of the workbench 2 is fixedly connected to the detection device 12, which is mainly used to detect the wear of the brake pad. The detection device 12 includes sensors, data processing units, etc., and can monitor the wear of the brake pad in real time and transmit the detection results to the operator. Advanced technologies such as laser ranging and infrared sensors are used to ensure the accuracy of the measurement.
[0034] Reference Figure 1 , Figure 2 and Figure 4The vacuuming mechanism 13 includes a support plate 14, the bottom of which is fixedly connected to the top of the workbench 2. The support plate 14 supports the drive assembly. The drive assembly is fixedly connected to the rear side of the support plate 14 and is the power source for the vacuuming assembly. The drive assembly includes a motor 15, the front of which is fixedly connected to the rear side of the support plate 14. An output shaft 16 is fixedly connected to the output end of the motor 15. The motor 15 drives the rotating plate 17 and the front fixed shaft 18 to rotate through the output shaft 16. The drive assembly is fixedly connected to the rotating plate 17, the rear of which is rotatably connected to the front side of the support plate 14. A fixed shaft 18 is fixedly connected to the front side of the rotating plate 17. The rotation of the rotating plate 17 drives the fixed shaft 18 to slide within the slide block 19. The slide block 19 is slidably connected to the outside of the fixed shaft 18. A connecting rod 20 is fixedly connected to the front side of the slide block 19. The slide block 19 and the fixed rod... The connecting rod 20 is confined to the workbench 2, which restricts its sliding motion and drives the scraper 21 to slide. The scraper 21 is fixedly connected to the front side of the connecting rod 20, and the bottom of the scraper 21 is slidably connected to the top of the workbench 2. The scraper 21 can effectively scrape away the dust and debris on the workbench 2. The dust collection box 22 is fixedly connected to the top of the base plate 1. The dust collection box 22 is used to collect the dust and debris generated during the vacuuming process and prevent them from spreading into the environment. The input end of the dust collection box 22 is fixedly connected to the extraction pump 23. The extraction pump 23 is responsible for extracting the dust generated on the workbench 2 through the dust collection pipe 24 and guiding it into the dust collection box 22. The input end of the extraction pump 23 is fixedly connected to the dust collection pipe 24. The dust collection pipe 24 transmits the dust from the workbench 2 to the dust collection box 22, providing a sealed path for the entire vacuuming process and ensuring the maximum vacuuming effect.
[0035] Working principle: The brake pads are placed on the workbench 2. The cylinder 5 in the fixing mechanism 3 is activated. The rear side of the cylinder 5 is fixed to the front side of the support block 4. The output end drives the drive block 6 to move. The drive block 6 then pushes the trapezoidal block 7. The sliding blocks 8 on both sides of the trapezoidal block 7 slide on the outside of the sliding plate 10, which drives the sliding plate 10 in the sliding assembly to slide along the inside of the fixing shell 9. The clamping block 11 connected to the sliding plate 10 moves accordingly to firmly clamp and fix the brake pads. After the brake pads are fixed, the detection device 12 starts to work. The sensors in the detection device 12 use advanced technologies such as laser ranging and infrared sensors to monitor the wear of the brake pads in real time. The data collected by the sensors is transmitted to the data processing unit. After processing, the detection results are transmitted to the operator.
[0036] After the inspection is completed, the dust collection mechanism 13 is started. The rear of the motor 15 is fixed to the front of the support plate 14. The output shaft 16 at its output end drives the rotating plate 17 to rotate. The fixed shaft 18 at the front of the rotating plate 17 slides in the slide block 19. The slide block 19 and the connecting rod 20 are restricted on the worktable 2, converting the rotation of the rotating plate 17 into sliding, which drives the scraper 21 to slide on the top of the worktable 2, scraping up the dust and debris. At the same time, the extraction pump 23 is started, which extracts the dust and debris on the worktable 2 through the dust collection pipe 24 and collects it into the dust collection box 22 through the input end of the dust collection box 22, ensuring that the worktable 2 is clean and ready for the next inspection.
[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A fixture for testing the wear of motor vehicle brake pads, comprising a base plate (1), characterized in that: A workbench (2) is fixedly connected to the top of the base plate (1), a fixing mechanism (3) is fixedly connected to the top of the workbench (2), and a dust collection mechanism (13) is fixedly connected to the top of the workbench (2). The fixing mechanism (3) includes a support block (4), the bottom of which is fixedly connected to the top of the workbench (2). A pushing component is fixedly connected to the front side of the support block (4), a trapezoidal block (7) is fixedly connected to the pushing component, sliding blocks (8) are fixedly connected to both sides of the trapezoidal block (7), a sliding component is slidably connected to the outer side of the sliding block (8), a clamping block (11) is fixedly connected to the sliding component, and a detection device (12) is fixedly connected to the top of the workbench (2).
2. The motor vehicle brake pad wear testing fixture according to claim 1, characterized in that: The pushing assembly includes a cylinder (5), the rear side of which is fixedly connected to the front side of the support block (4), and the output end of the cylinder (5) is fixedly connected to a drive block (6).
3. The motor vehicle brake pad wear testing fixture according to claim 1, characterized in that: The sliding assembly includes a fixed housing (9), the bottom of which is fixedly connected to the top of the workbench (2), and a sliding plate (10) is slidably connected to the inner side of the fixed housing (9).
4. The motor vehicle brake pad wear testing fixture according to claim 3, characterized in that: The dust collection mechanism (13) includes a support plate (14), the bottom of which is fixedly connected to the top of the workbench (2). A drive assembly is fixedly connected to the rear side of the support plate (14), and a rotating plate (17) is fixedly connected to the drive assembly. A fixed shaft (18) is fixedly connected to the front side of the rotating plate (17). A sliding block (19) is slidably connected to the outside of the fixed shaft (18). A connecting rod (20) is fixedly connected to the front side of the sliding block (19), and a scraper (21) is fixedly connected to the front side of the connecting rod (20).
5. The motor vehicle brake pad wear testing fixture according to claim 4, characterized in that: A dust collection box (22) is fixedly connected to the top of the base plate (1), and a suction pump (23) is fixedly connected to the input end of the dust collection box (22). A dust collection pipe (24) is fixedly connected to the input end of the suction pump (23).
6. The motor vehicle brake pad wear testing fixture according to claim 5, characterized in that: The drive assembly includes a motor (15), the front side of which is fixedly connected to the rear side of the support plate (14), and the output end of the motor (15) is fixedly connected to an output shaft (16).
7. The motor vehicle brake pad wear testing fixture according to claim 4, characterized in that: The bottom of the scraper (21) is slidably connected to the top of the workbench (2), and the outer side of the sliding block (8) is slidably connected to the outer side of the sliding plate (10).
8. The motor vehicle brake pad wear testing fixture according to claim 4, characterized in that: The outer side of the sliding plate (10) is slidably connected to the outer side of the fixed housing (9), and the rear side of the rotating plate (17) is rotatably connected to the front side of the support plate (14).