Automatic detection device for routine test of window wiper

Abstract

The utility model discloses an automatic detection device for a routine test of a windscreen wiper, which relates to the technical field of windscreen wipers, and comprises a frame support, a mounting part, a laser displacement sensor, an angle sensor and a pressing force measuring assembly, and a glass plate is arranged at the center of the frame support; the mounting part is arranged at the bottom of the frame support and used for being connected with the window wiper assembly, the window wiper assembly comprises a wiper power part and a swing arm, and the wiper power part is used for driving the swing arm to move on the glass plate; the laser displacement sensors are arranged on the left side and the right side of the frame support and used for detecting displacement of the swing arm. The angle sensor is in transmission connection with an output shaft of the windscreen wiper power part, and the angle sensor is used for detecting the rotation angle of the output shaft of the windscreen wiper power part; the pressing force measuring assembly is installed on the glass plate in a position-adjustable mode, and the pressing force measuring assembly is used for measuring the pressing force between the swing arm and the glass plate. According to the utility model, the window wiper assembly can be automatically tested, and measurement errors are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to wiper technology field especially relates to a wiper routine test automatic detection device. BACKGROUND

[0002] The original wiper routine test is manual test, and the routine test data including wiper brush angle, wiper brush frequency, wiper arm moving distance, wiper arm compression force, wiper output torque and pneumatic wiper air tightness test are tested singly, for example, wiper brush angle is manually positioned according to the maximum angle of wiper arm, and then manually measured by using a protractor, and wiper brush frequency is manually measured by using a stopwatch after a certain number of wiper returns, and then the average value is obtained. CONTENT OF THE UTILITY MODEL

[0003] The utility model aims at at least solving one of the technical problems in the prior art, and for this purpose, the utility model provides a wiper routine test automatic detection device, which can automatically test wiper components and reduce measurement errors.

[0004] The wiper routine test automatic detection device according to the first aspect of the utility model comprises a frame support, a mounting portion, a laser displacement sensor, an angle sensor and a compression force measuring assembly, and a glass plate is arranged at the center of the frame support; the mounting portion is arranged at the bottom of the frame support, and the mounting portion is used for connecting a wiper component, the wiper component comprises a wiper power unit and a swing arm, the wiper power unit is used for driving the swing arm to move on the glass plate; the laser displacement sensor is arranged on the left and right sides of the frame support, and the laser displacement sensor is used for detecting the displacement of the swing arm; the angle sensor is connected with the output shaft of the wiper power unit in transmission, and the angle sensor is used for detecting the rotation angle of the output shaft of the wiper power unit; the compression force measuring assembly is adjustably arranged on the glass plate, and the compression force measuring assembly is used for measuring the compression force between the swing arm and the glass plate.

[0005] The wiper routine test automatic detection device according to the utility model has at least the following beneficial effects: after the displacement data of the swing arm are measured by the laser displacement sensor, the frequency and the angle of swing of the swing arm can be calculated in combination with the length of the swing arm and the distance between the two laser displacement sensors, and the angle sensor is used for detecting the rotation angle of the output shaft of the wiper power unit. Since the angle and the frequency of swing of the swing arm are important parameters for judging whether the wiper power unit works normally, two sensors of different types and measurement principles are used for measurement, so that the accuracy of the measurement result is effectively ensured.

[0006] According to some embodiments of the utility model, the power source of the wiper motor is compressed air, the wiper motor is connected with a compressed air pipeline, and the compressed air pipeline is connected with a barometer.

[0007] According to some embodiments of the utility model, the frame support is rotatably installed on the rack, and a rotating shaft of the frame support is horizontally arranged.

[0008] According to some embodiments of the utility model, the rack is connected with a control unit, the control unit is electrically connected with the laser displacement sensor, the angle sensor and the compression force measuring assembly, the control unit is electrically connected with a display screen, and the control unit is used for receiving measurement results of the laser displacement sensor, the angle sensor and the compression force measuring assembly and converting the measurement results into corresponding parameters for display on the display screen.

[0009] According to some embodiments of the utility model, the rack is connected with an adjusting arm, the display screen is connected to one end of the adjusting arm away from the rack, and the adjusting arm is used for adjusting the position of the display screen.

[0010] According to some embodiments of the utility model, the frame support is rotatably installed on the rack, and a rotating shaft of the frame support is horizontally arranged.

[0011] According to some embodiments of the utility model, the frame support is rotatably installed on the rack, and a rotating shaft of the frame support is horizontally arranged.

[0012] According to some embodiments of the utility model, the frame support is rotatably installed on the rack, and a rotating shaft of the frame support is horizontally arranged.

[0013] According to some embodiments of the utility model, the compression force measuring assembly comprises a pressure sensor and a suction cup, the suction cup is connected with the pressure sensor, the suction cup can be fixed on the surface of the glass plate, and the pressure sensor can measure the pressure of the swing arm on the pressure sensor when the pressure sensor abuts against the swing arm.

[0014] According to some embodiments of the utility model, the compression force measuring assembly further comprises a height adjusting assembly, the pressure sensor is connected with the suction cup through the height adjusting assembly, and the height adjusting assembly is used for adjusting the distance between the suction cup and the pressure sensor.

[0015] According to some embodiments of the utility model, the frame support is rotatably installed on the rack, and a rotating shaft of the frame support is horizontally arranged.

[0016] (1) two sensors of different types and measurement principles are used for measurement, and the accuracy of measurement results is effectively ensured.

[0017] (2) The inclination angle of the frame support can be adjusted to accurately simulate the actual working condition.

[0018] (3) The height of the pressure sensor can be adjusted to adapt to different models and sizes of the wiper assembly.

[0019] The additional aspects and advantages of the present application will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0020] The present application will be further described below in combination with the drawings and examples, in which:

[0021] Figure 1 It is a schematic view of the mounting structure of an embodiment of the present application;

[0022] Figure 2 It is a schematic view of the frame support of an embodiment of the present application;

[0023] Figure 3 It is a schematic view of the pressing force measuring assembly of an embodiment of the present application;

[0024] Figure 4 It is a schematic view of the wiper assembly of an embodiment of the present application.

[0025] Reference signs:

[0026] Frame support 100, glass plate 110, mounting strip 120, water jet head 130, water baffle 140;

[0027] Mounting part 200;

[0028] Wiper assembly 300, wiper power part 310, swing arm 320;

[0029] Laser displacement sensor 400;

[0030] Angle sensor 500;

[0031] Pressing force measuring assembly 600, pressure sensor 610, suction cup 620, height adjusting assembly 630, sleeve 631, threaded rod 632;

[0032] Rack 700, adjusting arm 710;

[0033] Control part 800, display screen 810. DETAILED DESCRIPTION

[0034] The embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary only, and are used only for explaining the present application, and cannot be understood as a limitation of the present application.

[0035] In the description of the present application, it should be understood that, in relation to the orientation description, for example, the orientation or position relationship indicated by up, down and the like is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0036] In the description of the present application, the plurality of refers to two or more. If there is a description of first, second, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0037] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting and the like should be broadly understood, and the skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0038] Referring to Figures 1 to 4As shown, the utility model discloses a wiper routine test automatic detection device, including: frame support 100, installation part 200, laser displacement sensor 400, angle sensor 500, compression force measuring assembly 600. Frame support 100 is the rectangular frame structure of stainless steel welded forming. Frame support 100 center is provided with glass plate 110, and the four corners of frame support 100 are all bolted with pressing plate to be used for fixing glass plate 110. Installation part 200 sets up at frame support 100 bottom, and installation part 200 is stainless steel plate, is set up with a plurality of bolt holes on installation part 200 to facilitate installation wiper assembly 300, and wiper assembly 300 includes wiper power part 310 and swing arm 320, and wiper power part 310 is used to drive swing arm 320 to move on glass plate 110, and wiper assembly 300 is the device that needs to be tested, and its structure and installation mode belong to prior art, so it is not described in detail. Laser displacement sensor 400 sets up at the left and right sides of frame support 100, and laser displacement sensor 400 is used to detect the displacement of swing arm 320, and after the displacement data of swing arm 320 is measured by laser displacement sensor 400, the frequency and the angle of swing of swing arm 320 can be calculated by combining the length of swing arm 320 and the distance between the two laser displacement sensors 400. Its calculation process is realized by computer, and the calculation steps are prior art, so it is not described in detail. Angle sensor 500 is connected with the output shaft transmission of wiper power part 310, and angle sensor 500 selects encoder, and angle sensor 500 is used to detect the rotation angle of the output shaft of wiper power part 310, and the frequency and the angle of swing of swing arm 320 can be calculated according to the change value of the rotation angle of the output shaft of wiper power part 310. Since the angle and the frequency of swing of swing arm 320 are important parameters for judging whether wiper power part 310 works normally, two different types of sensors with different measurement principles are used for measurement, effectively ensuring the accuracy of the measurement result. Compression force measuring assembly 600 can be adjusted and installed on glass plate 110, and compression force measuring assembly 600 is used to measure the compression force between swing arm 320 and glass plate 110. If the pressure between swing arm 320 and glass plate 110 is too small, it will cause that rainwater cannot be wiped clean, and the driver's sight will be affected, and if the pressure between swing arm 320 and glass plate 110 is too large, it will cause that the service life of swing arm 320 is shortened and wiper power part 310 works overload, so the pressure between swing arm 320 and glass plate 110 needs to be controlled within a suitable range. In the case that wiper power part 310 stops, the pressure between swing arm 320 and glass plate 110 is measured by putting compression force measuring assembly 600 between swing arm 320 and glass plate 110. After compression force measuring assembly 600 is disassembled, it will not affect the measurement of the angle and the frequency of swing of swing arm 320.

[0039] Refer to Figures 1 to 4As shown, it can be understood that the power source of the wiper power part 310 is compressed air, the wiper power part 310 is connected with a compressed air pipeline, and the compressed air pipeline is connected with a pressure gauge. In the case that the wiper power part 310 is stopped, the compressed air is introduced into the compressed air pipeline, and then the air inlet valve of the compressed air is closed, and the pressure drop of the pressure gauge is observed. In the case that the wiper power part 310 is qualified, the pressure drop measured by the pressure gauge should be less than the preset value. It can be foreseen that if the wiper power part 310 is electrically driven, the pressure gauge measurement can not be used.

[0040] Referring to Figure 1 and Figure 2 As shown, it can be understood that the frame support 100 is rotatably installed on the rack 700, and the rotation axis of the frame support 100 is horizontally arranged. Since the inclination angles of the windshields of different vehicle models are different. If the inclination angles are inconsistent during testing, the gravity of the swing arm 320 itself will affect the measurement results of the pressing force measurement assembly 600. In order to accurately simulate the actual working condition, the angle of the frame support 100 is adjusted to make the inclination angle of the glass plate 110 the same as that of the wiper assembly 300 during actual working, so as to improve the accuracy of the test results.

[0041] Referring to Figure 1 As shown, it can be understood that the rack 700 is connected with a control part 800, the control part 800 selects a general computer as an upper computer, the control part 800 is electrically connected with the laser displacement sensor 400, the angle sensor 500 and the pressing force measurement assembly 600 through the communication mode of the 485 interface, the control part 800 is electrically connected with a display screen 810, and the control part 800 is used for receiving the measurement results of the laser displacement sensor 400, the angle sensor 500 and the pressing force measurement assembly 600 and converting the corresponding parameters into display on the display screen 810. It can be foreseen that after the wiper assembly 300 runs for one minute, the control part 800 averages the data collected by the laser displacement sensor 400 and the angle sensor 500 within one minute to reduce the measurement error and improve the test accuracy. The test staff can directly view the measurement results from the display screen 810 to judge whether the tested wiper assembly 300 meets the test standard.

[0042] Referring to Figure 1As shown, it can be understood that the rack 700 is connected with the adjusting arm 710, and the specific structure and mounting mode of the adjusting arm 710 are prior art, and thus will not be described in detail. The adjusting arm 710 can be manually adjusted to any position and angle and kept, and the display screen 810 is connected to one end of the adjusting arm 710 away from the rack 700, and the adjusting arm 710 is used for adjusting the position of the display screen 810. According to the height and standing position of the tester, the display screen 810 can be kept facing the tester by changing the angle and position of the adjusting arm 710, so as to facilitate the tester to watch the test results on the display screen 810.

[0043] Referring to Figures 1 to 4 As shown, it can be understood that the frame support 100 is provided with the mounting strip 120 on the left and right sides, the extension direction of the mounting strip 120 is perpendicular to the rotation shaft of the frame support 100, and a plurality of mounting positions are provided on the mounting strip 120 at equal intervals, and the mounting positions are used for mounting the laser displacement sensor 400. Since the swing arm 320 of different lengths needs to be tested, the position of the laser displacement sensor 400 needs to be adapted according to the length of the swing arm 320. The plurality of mounting positions are provided to facilitate the adjustment of the position of the laser displacement sensor 400, and improve the work efficiency.

[0044] Referring to Figure 1 and Figure 2 As shown, it can be understood that the frame support 100 is provided with the water spraying head 130 at the edge, the water spraying head 130 is connected with a tap or a water pump, and the water spraying head 130 is used for atomizing water and uniformly spraying the atomized water to the surface of the glass plate 110. The water spraying head 130 is used for simulating the rainwater falling on the windshield during raining, so as to test whether the wiper assembly 300 can effectively wipe the water droplets on the surface of the glass plate 110 during working. The tester should judge whether the water wiping effect of the wiper assembly 300 meets the test standard according to his own experience. Since the spraying range of a single water spraying head 130 is limited, a plurality of water spraying heads 130 can be provided to increase the coverage area of water spraying.

[0045] Referring to Figure 1 and Figure 2 As shown, it can be understood that the frame support 100 is provided with the water baffle 140 at the left and right sides. Since the wiper assembly 300 swings back and forth during working, the water on the glass plate 110 is pushed to the left and right sides. In order to prevent water droplets from splashing, the water baffle 140 is provided at the left and right sides to block the water droplets, so as to prevent the testers and electronic devices around from being splashed.

[0046] Referring to Figures 1 to 4As shown, it can be understood that the pressure measurement assembly 600 comprises a pressure sensor 610 and a suction cup 620, the pressure sensor 610 is shaped as a common column, the accuracy of the pressure sensor 610 should be 0.05% of the range. The suction cup 620 is connected with the pressure sensor 610, the suction cup 620 can be fixed on the surface of the glass plate 110, by changing the position of the suction cup 620 adsorbed on the glass plate 110, the position of the pressure sensor 610 can be adjusted conveniently, so that the pressure sensor 610 is aligned with the swing arm 320. When the pressure sensor 610 is abutted with the swing arm 320, the pressure of the swing arm 320 on the pressure sensor 610 can be measured. The pressure of the swing arm 320 on the pressure sensor 610 is measured indirectly to measure the pressure of the swing arm 320 on the glass plate 110.

[0047] Referring to Figures 1 to 4 As shown, it can be understood that the pressure measurement assembly 600 further comprises a height adjustment assembly 630, the height adjustment assembly 630 is a combination of a sleeve 631 and a threaded rod 632, the sleeve 631 is provided with an internal thread, and the threaded rod 632 is provided with an external thread on the outside. The threaded rod 632 is partially screwed in the sleeve 631, the end of the threaded rod 632 away from the sleeve 631 is fixedly connected with the pressure sensor 610, and the end of the sleeve 631 away from the threaded rod 632 is fixedly connected with the suction cup 620. The distance between the suction cup 620 and the pressure sensor 610 is adjusted by adjusting the depth of the threaded rod 632 screwed into the sleeve 631. The pressure sensor 610 is connected with the suction cup 620 through the height adjustment assembly 630, and the height adjustment assembly 630 is used to adjust the distance between the suction cup 620 and the pressure sensor 610.

[0048] Use steps: install the wiper assembly 300 on the mounting portion 200, rotate and adjust the frame support 100 to the specified angle, connect the corresponding compressed air source or power source for the wiper power portion 310, the wiper power portion 310 drives the swing arm 320 to swing back and forth on the glass plate 110, the displacement of the swing arm 320 is detected by the laser displacement sensor 400, the output shaft rotation angle of the wiper power portion 310 is detected by the angle sensor 500, the data collected by the laser displacement sensor 400 and the angle sensor 500 is transmitted to the control portion 800 through the 485 communication interface, after the wiper assembly 300 runs for one minute, the control portion 800 averages the data collected by the laser displacement sensor 400 and the angle sensor 500 within one minute, the control portion 800 calculates the swing angle and the swing frequency corresponding to the swing arm 320, and then displays on the display. Stop the wiper power portion 310, judge whether the swing arm 320 is back to the original position according to the position information of the swing arm 320 detected by the laser displacement sensor 400. Then the suction cup 620 is adsorbed to the position aligned with the swing arm 320, the height of the height adjusting assembly 630 is adjusted, the pressure sensor 610 is located between the swing arm 320 and the glass plate 110, and the pressure of the swing arm 320 on the glass plate 110 is detected.

[0049] The above embodiment of the utility model is described in detail in combination with the drawings, but the utility model is not limited to the above embodiment, and various changes can be made within the knowledge range possessed by ordinary skilled in the art without departing from the purpose of the utility model.

Claims

1. An automatic detection device for routine windshield wiper testing, characterized in that: include: A frame bracket (100); a glass plate (110) is provided at the center of the frame bracket (100); A mounting portion (200) is provided at the bottom of the frame bracket (100), the mounting portion (200) being used to connect to a wiper assembly (300), the wiper assembly (300) comprising a wiper power unit (310) and a swing arm (320), the wiper power unit (310) being used to drive the swing arm (320) to move on the glass plate (110); Laser displacement sensors (400) are arranged on the left and right sides of the frame bracket (100), and the laser displacement sensors (400) are used to detect the displacement of the swing arm (320); An angle sensor (500) is drivingly connected to the output shaft of the wiper power unit (310), and the angle sensor (500) is used to detect the rotation angle of the output shaft of the wiper power unit (310); A pressing force measuring assembly (600) is mounted on the glass plate (110) in an adjustable position, and the pressing force measuring assembly (600) is used to measure the pressing force between the swing arm (320) and the glass plate (110).

2. The automatic detection device for routine windshield wiper testing according to claim 1, characterized in that: The power source of the wiper power unit (310) is compressed air. The wiper power unit (310) is connected to a compressed air pipeline, and the compressed air pipeline is connected to a barometer.

3. The automatic detection device for routine windshield wiper testing according to claim 1, characterized in that: The frame bracket (100) is rotatably mounted on the frame (700), and the rotation axis of the frame bracket (100) is horizontally arranged.

4. The automatic detection device for routine windshield wiper testing according to claim 3, characterized in that: A control unit (800) is connected to the side of the frame (700), and the control unit (800) is electrically connected to the laser displacement sensor (400), the angle sensor (500), and the pressing force measuring assembly (600). The control unit (800) is electrically connected to a display screen (810), and the control unit (800) is used to receive measurement results of the laser displacement sensor (400), the angle sensor (500), and the pressing force measuring assembly (600) and convert them into corresponding parameters for display on the display screen (810).

5. The automatic detection device for routine windshield wiper testing according to claim 4, characterized in that: An adjustment arm (710) is connected to the frame (700), and the display screen (810) is connected to one end of the adjustment arm (710) away from the frame (700). The adjustment arm (710) is used to adjust the position of the display screen (810).

6. The automatic detection device for routine windshield wiper testing according to claim 5, characterized in that: Mounting bars (120) are provided on both the left and right sides of the frame bracket (100), and a plurality of mounting positions are provided at intervals on the mounting bars (120), wherein the mounting positions are used to mount the laser displacement sensor (400).

7. The automatic detection device for routine windshield wiper testing according to claim 1, characterized in that: A water spray head (130) is provided at the edge of the frame bracket (100), and the water spray head (130) is used to spray water evenly onto the surface of the glass plate (110).

8. The automatic detection device for routine windshield wiper testing according to claim 7, characterized in that: Water retaining plates (140) are provided on both the left and right sides of the frame bracket (100).

9. The automatic detection device for routine windshield wiper testing according to claim 1, characterized in that: The pressing force measurement assembly (600) includes a pressure sensor (610) and a suction cup (620), wherein the suction cup (620) is connected to the pressure sensor (610), and the suction cup (620) can be fixed on the surface of the glass plate (110). When the pressure sensor (610) and the swing arm (320) are in contact with each other, the pressure of the swing arm (320) on the pressure sensor (610) can be measured.

10. The automatic detection device for routine windshield wiper testing according to claim 9, characterized in that: The pressing force measurement assembly (600) further includes a height adjustment assembly (630), wherein the pressure sensor (610) is connected to the suction cup (620) via the height adjustment assembly (630), and the height adjustment assembly (630) is used to adjust the distance between the suction cup (620) and the pressure sensor (610).

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