Automobile windscreen wiper rubber strip performance testing system and testing device

Abstract

The utility model provides an automobile windscreen wiper rubber strip performance test system and a test device, the system comprises a main control unit, a friction force test unit and a data acquisition and analysis unit, the friction force test unit is electrically connected with the main control unit, the data acquisition and analysis unit is electrically connected with the main control unit, and the test device comprises a friction force loading unit, the friction force loading unit is electrically connected with the main control unit; the temperature control unit is electrically connected with the main control unit; the adhesive tape clamping unit is electrically connected with the main control unit; the clamping unit comprises a clamping mechanism, and the clamping mechanism is located above the friction force loading unit; the angle adjusting mechanism is connected with the clamping mechanism; and the position adjusting mechanism is used for adjusting the positions of the angle adjusting mechanism and the clamping mechanism and is in sliding fit with the angle adjusting mechanism. According to the utility model, an automatic test mode is adopted, the test efficiency is improved, and the comprehensive performance test of the windscreen wiper rubber strip is more accurate.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive parts testing devices, specifically to an automotive wiper blade performance testing system and testing device. Background Technology

[0002] Windshield wiper blades play a crucial role in automotive driving safety. Their primary function is to clear rainwater, snow, dust, and other debris from the windshield to ensure clear visibility for the driver. Windshield wiper blades achieve these functions through their special materials and design. Made of rubber, they possess a certain degree of hardness and elasticity, allowing them to closely conform to the curvature of the windshield. However, as manufacturers of windshield wiper blades, there is an urgent need to design a testing device that can measure frictional changes under different temperatures and pressures to comprehensively evaluate the performance of windshield wiper blades. Summary of the Invention

[0003] To address the aforementioned problems, this utility model provides a performance testing system and device for automotive wiper blades.

[0004] The technical solutions to the above technical problems are as follows:

[0005] A performance testing system and apparatus for automotive wiper blades. The system includes a main control unit, a friction force testing unit, and a data acquisition and analysis unit. The friction force testing unit is electrically connected to the main control unit, and the data acquisition and analysis unit is also electrically connected to the main control unit. The testing apparatus includes:

[0006] A friction loading unit that simulates the friction between glass and adhesive strips is electrically connected to the main control unit;

[0007] The temperature control unit is electrically connected to the main control unit;

[0008] A clamping unit for holding the adhesive strip so that the adhesive strip rubs against the friction loading unit on the friction loading unit, the adhesive strip clamping unit being electrically connected to the main control unit;

[0009] The clamping unit includes:

[0010] A clamping mechanism for holding the adhesive strip is located above the friction loading unit;

[0011] An angle adjustment mechanism is used to adjust the position of the contact surface between the adhesive strip and the loading unit, and this angle adjustment mechanism is connected to the clamping mechanism;

[0012] A position adjustment mechanism is used to adjust the position of the angle adjustment mechanism and the clamping mechanism, and the position adjustment mechanism slides in conjunction with the angle adjustment mechanism.

[0013] Furthermore, it also includes:

[0014] The temperature control unit and the adhesive strip clamping unit are located inside the housing, and at least a portion of the friction loading unit is located inside the housing.

[0015] Furthermore, the clamping mechanism includes:

[0016] The system includes a drive cylinder, a slider, an intermediate connecting plate, and a rubber strip clamping block. The drive cylinder is connected to the angle adjustment mechanism. A guide rail is provided on the cylinder wall of the drive cylinder. The intermediate connecting plate slides with the guide rail and is also connected to the output end of the drive cylinder. The rubber strip clamping block is connected to the intermediate connecting plate.

[0017] Furthermore, the angle adjustment mechanism includes:

[0018] Angle disc and angle adjustment block, the angle disc is connected to the position adjustment mechanism, the angle disc is connected to the angle adjustment block, and the angle adjustment block is connected to the drive cylinder.

[0019] Furthermore, the position adjustment mechanism includes:

[0020] The system includes a bracket, a base plate, a lead screw assembly, and a sliding base plate. The bracket is connected to the housing, and the base plate is connected to the bracket. The base plate is equipped with a slide rail, and the lead screw assembly is installed on the base plate. The lead screw assembly also cooperates with the sliding base plate, which is connected to the angle plate.

[0021] Furthermore, the friction loading unit includes a servo motor, a gearbox, and a glass disc. The gearbox is installed at the bottom of the housing and is also connected to the output end of the servo motor. The glass disc is located inside the housing and below the clamping mechanism. The glass disc is also connected to the output end of the gearbox.

[0022] Furthermore, the temperature control unit includes:

[0023] The heater and mounting bracket are electrically connected to the main control unit. One end of the mounting bracket is connected to the housing, and the other end of the mounting bracket is connected to the heater. The heater is located above the glass disc.

[0024] The beneficial effects of this invention are as follows: This invention simulates the friction between the wiper blade and the car glass through a friction testing unit, a friction loading unit, and a clamping unit. The main control unit controls the data acquisition and analysis unit to collect and analyze the friction. Simultaneously, a temperature control unit sets different ambient temperatures to simulate the working conditions of the wiper blade under different climatic conditions, thus achieving comprehensive, efficient, and accurate testing of the wiper blade performance. This invention adopts an automated testing method, improving testing efficiency and making the comprehensive performance testing of the wiper blade more accurate. Attached Figure Description

[0025] Figure 1 This is a front view of the automotive wiper blade performance testing device of this utility model;

[0026] Figure 2 This is a perspective view of the automotive wiper blade performance testing device of this utility model;

[0027] Figure 3 This is a perspective view of the clamping mechanism and angle adjustment mechanism of the automotive wiper blade performance testing device of this utility model;

[0028] Figure 4 This is a perspective view of the automotive wiper blade performance testing device of this utility model;

[0029] Figure 5 This is a control principle diagram of the automotive wiper blade performance testing system and testing device of this utility model.

[0030] The markings in the attached diagram are as follows: housing 1, drive cylinder 10, guide rail 10-1, slider 11, intermediate connecting plate 12, buffer component 12-1, rubber strip clamping block 13, angle disc 20, angle adjustment block 21, adjustment hole 21-1, locking component 22, angle indicator block 23, bracket 30, base plate 31, slide rail 31-1, lead screw assembly, sliding base plate 32, servo motor 40, gearbox 41, glass disc 42, heater 50, mounting bracket 51, lead screw 60, lead screw bearing seat 61, lead screw handle 62. Detailed Implementation

[0031] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0032] like Figure 5 As shown, an automotive wiper blade performance testing system and device are disclosed. The system includes a main control unit, a friction force testing unit, and a data acquisition and analysis unit. The friction force testing unit is electrically connected to the main control unit, and the data acquisition and analysis unit is also electrically connected to the main control unit. The testing device includes:

[0033] A friction loading unit that simulates the friction between glass and adhesive strips is electrically connected to the main control unit;

[0034] The temperature control unit is electrically connected to the main control unit;

[0035] A clamping unit for holding the adhesive strip so that the adhesive strip rubs against the friction loading unit on the friction loading unit, the adhesive strip clamping unit being electrically connected to the main control unit;

[0036] The clamping unit includes:

[0037] A clamping mechanism for holding the adhesive strip is located above the friction loading unit;

[0038] An angle adjustment mechanism is used to adjust the position of the contact surface between the adhesive strip and the loading unit, and this angle adjustment mechanism is connected to the clamping mechanism;

[0039] A position adjustment mechanism is used to adjust the position of the angle adjustment mechanism and the clamping mechanism, and the position adjustment mechanism slides in conjunction with the angle adjustment mechanism.

[0040] In this implementation scheme, the clamping unit is used to fix, clamp, and adjust the wiper blade during testing to ensure stability during the testing process; the friction loading unit is used to simulate the force conditions of the wiper in actual use and load the wiper blade; the friction testing unit is used to measure the pressure applied to the wiper blade; the temperature control unit is used to control the temperature of the testing environment to simulate the working conditions of the wiper blade under different climatic conditions; the data acquisition and analysis unit is used to collect pressure, friction, and temperature data in real time during the testing process, and generate curve images through software analysis to show the trend of friction with temperature and pressure; the main control unit is used to control the friction loading unit, the data acquisition and analysis unit, the friction testing unit, the temperature control unit, and the clamping unit.

[0041] like Figures 1 to 4 As shown, it also includes:

[0042] The temperature control unit and the adhesive strip clamping unit are located inside the housing 1, and at least a portion of the friction loading unit is located inside the housing 1.

[0043] The clamping mechanism includes:

[0044] The drive cylinder 10, slider 11, intermediate connecting plate 12, and rubber strip clamping block 13 are connected to the angle adjustment mechanism. The cylinder wall of the drive cylinder 10 is provided with a guide rail 10-1. The intermediate connecting plate 12 is slidably engaged with the guide rail 10-1, and the intermediate connecting plate 12 is also connected to the output end of the drive cylinder 10. The rubber strip clamping block 13 is connected to the intermediate connecting plate 12.

[0045] In this embodiment, the clamping mechanism further includes a buffer component 12-1. One end of the buffer component 12-1 is connected to the rubber strip clamping block 13, and the other end of the buffer component 12-1 is connected to the intermediate connecting plate 12. When the piston rod of the drive cylinder 10 extends, the slider 11 moves downward along the guide rail 10-1. When the rubber strip clamping block 13 clamps the rubber strip and contacts the friction loading unit, the buffer component 12-1 can play a buffering role to prevent the rubber strip under test from being damaged due to excessive impact force.

[0046] The angle adjustment mechanism includes:

[0047] Angle disk 20 and angle adjustment block 21 are provided. The angle disk 20 is connected to the position adjustment mechanism, the angle disk 20 is connected to the angle adjustment block 21, and the angle adjustment block 21 is connected to the drive cylinder 10.

[0048] Specifically, the angle adjustment block 21 is provided with an adjustment hole 21-1, which is an arc-shaped hole. The angle disk 20 is provided with scale lines. The angle indicator block 23 is locked on the angle adjustment block 21. When it is necessary to adjust the angle of the wiper blade, loosen the locking part 22 and adjust the value of the angle indicator block 23 coinciding with the scale line on the angle disk 20. The angle of the angle adjustment block 21 can be adjusted, thereby satisfying the test of different contact angles between the wiper blade and the friction loading unit.

[0049] The position adjustment mechanism includes:

[0050] The bracket 30, base plate 31, lead screw assembly, and sliding base plate 32 are provided. The bracket 30 is connected to the housing 1, the base plate 31 is connected to the bracket 30, the base plate 31 is provided with a slide rail 31-1, the lead screw assembly is installed on the base plate 31, the lead screw assembly also cooperates with the sliding base plate 32, and the sliding base plate 32 is connected to the angle plate 20.

[0051] Specifically, the lead screw assembly includes a lead screw 60, a lead screw handle 62, and at least two lead screw bearing seats 61. The two lead screw bearing seats 61 are respectively installed at both ends of the base plate 31. The two ends of the lead screw 60 cooperate with the two lead screw bearing seats 61. At the same time, the lead screw 60 also cooperates with the sliding base plate 32. The lead screw handle 62 is fixedly connected to the lead screw 60. When it is necessary to adjust the position of the clamping mechanism, the lead screw 60 is rotated by holding the lead screw handle 62, and the sliding base plate 32 moves along the slide rail 31-1, thereby adjusting the position of the clamping mechanism.

[0052] The friction loading unit includes a servo motor 40, a reduction gearbox 41, and a glass disc 42. The reduction gearbox 41 is installed at the bottom of the housing 1 and is also connected to the output end of the servo motor 40. The glass disc 42 is located inside the housing 1 and is located below the clamping mechanism. The glass disc 42 is also connected to the output end of the reduction gearbox 41.

[0053] The temperature control unit includes:

[0054] Heater 50 and mounting bracket 51 are provided. Heater 50 is electrically connected to the main control unit. One end of mounting bracket 51 is connected to housing 1, and the other end of mounting bracket 51 is connected to heater 50. Heater 50 is located above glass disc 42.

[0055] The working principle of this utility model is as follows: First, the adhesive strip to be tested is clamped on the adhesive strip clamping block 13. Then, the main control unit controls the servo motor 40 of the friction loading unit to start. The servo motor 40 drives the reduction gearbox 41 to rotate, and the reduction gearbox 41 drives the glass disc 42 to rotate. When the speed of the glass disc 42 reaches the rotation speed set by the main control unit, the servo motor 40 drives the glass disc 42 to maintain the current speed. Then, the main control unit controls the data acquisition and analysis unit to collect the friction force of the glass disc 42 itself (collection time is 2 minutes, and the collection frequency is once per second), and calculates its average friction force. Then, the main control unit controls the drive... When cylinder 10 is activated, the piston rod of cylinder 10 extends, thereby pushing slider 11 to move downward along guide rail 10-1. At this time, rubber strip clamp 13 and rubber strip to be tested also move downward. When the rubber strip contacts glass disc 42, cylinder 10 maintains its current position. The main control unit controls the data acquisition and analysis unit to collect the friction force of glass disc 42 again (the collection time can be set by the user, the collection frequency is once per second, and the longer the time, the more stable the data). Since the rubber strip will generate friction force with disc 42 after descending, the friction force collected this time is the sum of the no-load friction force and the friction force of the rubber strip on the glass. After the collection is completed, the average value is calculated by the data acquisition and analysis unit. Then, the average value is subtracted from the first no-load friction force to obtain the friction force between the wiper and the glass in the current environment.

[0056] Finally, it should be noted that the above-described embodiments are merely preferred embodiments of the present invention used to illustrate the technical solutions of the present invention, and are not intended to limit them, much less limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to depart from the scope of protection of the claims.

Claims

1. A performance testing system and device for automotive wiper blades, the system comprising a main control unit, a friction force testing unit, and a data acquisition and analysis unit, wherein the friction force testing unit is electrically connected to the main control unit, and the data acquisition and analysis unit is electrically connected to the main control unit, characterized in that, The testing apparatus includes: A friction loading unit that simulates the friction between glass and adhesive strips is electrically connected to the main control unit; The temperature control unit is electrically connected to the main control unit; A clamping unit for holding the adhesive strip so that the adhesive strip rubs against the friction loading unit on the friction loading unit, the adhesive strip clamping unit being electrically connected to the main control unit; The clamping unit includes: A clamping mechanism for holding the adhesive strip is located above the friction loading unit; An angle adjustment mechanism is used to adjust the position of the contact surface between the adhesive strip and the loading unit, and this angle adjustment mechanism is connected to the clamping mechanism; A position adjustment mechanism is used to adjust the position of the angle adjustment mechanism and the clamping mechanism, and the position adjustment mechanism slides in conjunction with the angle adjustment mechanism.

2. The automotive wiper blade performance testing system and testing device according to claim 1, characterized in that, Also includes: The temperature control unit and the adhesive strip clamping unit are located inside the box (1), and at least part of the friction loading unit is located inside the box (1).

3. The automotive wiper blade performance testing system and testing device according to claim 2, characterized in that, The clamping mechanism includes: The drive cylinder (10), slider (11), intermediate connecting plate (12), and rubber strip clamp (13) are connected to the angle adjustment mechanism. The cylinder wall of the drive cylinder (10) is provided with a guide rail (10-1). The intermediate connecting plate (12) slides with the guide rail (10-1) and is also connected to the output end of the drive cylinder (10). The rubber strip clamp (13) is connected to the intermediate connecting plate (12).

4. The automotive wiper blade performance testing system and testing device according to claim 3, characterized in that, The angle adjustment mechanism includes: Angle disk (20) and angle adjustment block (21). The angle disk (20) is connected to the position adjustment mechanism, the angle disk (20) is connected to the angle adjustment block (21), and the angle adjustment block (21) is connected to the drive cylinder (10).

5. The automotive wiper blade performance testing system and testing device according to claim 4, characterized in that, The position adjustment mechanism includes: The bracket (30), base plate (31), lead screw assembly, and sliding base plate (32) are connected. The bracket (30) is connected to the housing (1), the base plate (31) is connected to the bracket (30), the base plate (31) is provided with a slide rail (31-1), the lead screw assembly is installed on the base plate (31), the lead screw assembly also cooperates with the sliding base plate (32), and the sliding base plate (32) is connected to the angle plate (20).

6. The automotive wiper blade performance testing system and testing device according to claim 2, characterized in that, The friction loading unit includes a servo motor (40), a gearbox (41), and a glass disc (42). The gearbox (41) is installed at the bottom of the housing (1) and is also connected to the output end of the servo motor (40). The glass disc (42) is located inside the housing (1) and is located below the clamping mechanism. The glass disc (42) is also connected to the output end of the gearbox (41).

7. The automotive wiper blade performance testing system and testing device according to claim 6, characterized in that, The temperature control unit includes: Heater (50), mounting bracket (51), heater (50) is electrically connected to the main control unit, one end of mounting bracket (51) is connected to the housing (1), the other end of mounting bracket (51) is connected to heater (50), heater (50) is located above glass disc (42).

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