A fixture for testing the rotation angle of a wiper assembly shaft

Abstract

This utility model belongs to the field of wiper assembly testing technology, specifically relating to a fixture for testing the rotation angle of a wiper assembly shaft. It includes a fixture base plate, on which a support mechanism for fixing and supporting the wiper assembly shaft is mounted. A detection mechanism for detecting the rotation angle of the wiper assembly shaft is mounted beside the support mechanism. Both the support mechanism and the detection mechanism have position adjustment mechanisms for adjusting the horizontal position of the fixture base plate in the XY axis direction. The detection mechanism, positioned above the support mechanism, has a detection height adjustment mechanism for adjusting the height of the fixture base plate in the Z axis direction. When the wiper assembly shaft is stably fixed by the support mechanism, the wiper assembly is started to rotate the shaft. At this time, the detection mechanism begins to work, detecting the rotation angle of the shaft in real time and feeding back the detected angle data, thereby completing the wiper assembly shaft rotation angle test.

Description

Technical Field

[0001] This utility model belongs to the field of wiper assembly testing technology, specifically relating to a test fixture for the rotation angle of a wiper assembly shaft. Background Technology

[0002] The windshield wiper assembly is an indispensable and critical safety component in automobiles and other vehicles. Its main function is to promptly clear rainwater, snow, dust, and other debris from the windshield in various weather conditions, such as rain, snow, or dusty environments, providing the driver with a clear and unobstructed view, thereby ensuring driving safety. With the continuous development of the automotive industry and the increasing emphasis consumers place on driving safety, the performance requirements for windshield wiper assemblies are also rising. Among these requirements, the rotation angle of the wiper assembly shaft is one of the key factors affecting its performance. A suitable shaft rotation angle ensures that the wiper blades can achieve comprehensive and effective wiping of the windshield, avoiding blind spots and guaranteeing a good wiping effect.

[0003] The current traditional method for testing wiper assembly shafts involves using a pointer-equipped angle gauge. The output shaft is fixed to the pointer of the gauge, and the wiper assembly shaft is powered on. The maximum angle is then obtained by visually reading the pointer's maximum value. This method suffers from high accuracy due to excessive human error and cannot meet the requirements of modern automotive component development. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a testing fixture for the rotation angle of a wiper assembly shaft. The wiper assembly shaft is fixedly supported on a support mechanism, and a detection mechanism measures the rotation angle of the wiper assembly shaft. This solves the problem of the traditional method, which uses a pointer-equipped angle gauge, fixes the output shaft to the pointer, powers the wiper assembly shaft, and visually reads the maximum angle. This method suffers from high accuracy due to excessive human error and cannot meet the requirements of modern automotive component development.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a fixture for testing the rotation angle of a wiper assembly shaft, comprising a fixture base plate, a support mechanism for fixing and supporting the wiper assembly shaft on the fixture base plate, a detection mechanism for detecting the rotation angle of the wiper assembly shaft on one side of the support mechanism, the support mechanism and the detection mechanism having a position adjustment mechanism for adjusting the horizontal position in the XY axis direction of the fixture base plate, and the detection mechanism being positioned above the support mechanism having a detection height adjustment mechanism for adjusting the height in the Z axis direction of the fixture base plate.

[0006] Preferably, the position adjustment mechanism includes a transverse guide rail arranged in the X-axis direction of the tooling base plate, a mounting bracket slidably connected to the transverse guide rail, and a longitudinal guide rail in the Y-axis direction of the tooling base plate arranged on the mounting bracket.

[0007] Preferably, the support mechanism includes a support fixing seat slidably disposed on a longitudinal guide rail, a mounting plate for fixing the end of the wiper assembly shaft is movably mounted on the support fixing seat, and a support height adjustment mechanism for adjusting the height of the mounting plate in the Z-axis direction of the tooling base plate.

[0008] Preferably, the mounting plate has bolt holes, and the mounting plate is fixedly connected to the end of the support wiper assembly shaft by bolts.

[0009] Preferably, the support height adjustment mechanism includes a support rod disposed on a support base, a support block disposed at the top of the support rod, a fixed block movably connected to the top of the support block, the top of the fixed block being fixedly connected to the mounting plate, and the support block being locked or the fixed block being released by a quick-locking bolt.

[0010] Preferably, the detection height adjustment mechanism includes a column mounting plate that is slidably mounted on a longitudinal guide rail, a column that is fixedly mounted on the column mounting plate, and a vertical guide rail that is slidably connected to the detection mechanism on one side of the column.

[0011] Preferably, the detection mechanism includes a detection adjustment seat that is slidably disposed on a vertical guide rail, a sensor mounting support rod that is disposed on the detection adjustment seat, a sensor mounting base that is connected to the outer end of the sensor mounting support rod, and a sensor that is disposed on the sensor mounting base.

[0012] Preferably, the bottom of the mounting bracket, support fixing seat, and column mounting plate are all provided with sliders that match the transverse guide rail and the longitudinal guide rail, and the mounting bracket, support fixing seat, and column mounting plate are all locked or released by quick-locking bolts.

[0013] Compared with existing technologies, the beneficial effects of this utility model are as follows: After the wiper assembly shaft is stably fixed by the support mechanism, the wiper assembly is started to rotate the shaft. At this time, the detection mechanism starts working, detecting the rotation angle of the shaft in real time, and feeding back the detected angle data, thereby completing the test of the rotation angle of the wiper assembly shaft. Throughout the test process, the various mechanisms cooperate with each other to ensure the accuracy and reliability of the test.

[0014] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description or may be learned by practice of the invention. Attached Figure Description

[0015] Figure 1 A three-dimensional structural diagram of a fixture for testing the rotation angle of a wiper assembly shaft. Figure 1 .

[0016] Figure 2 A three-dimensional structural diagram of a fixture for testing the rotation angle of a wiper assembly shaft. Figure 2 .

[0017] Figure 3 A three-dimensional structural diagram of a fixture for testing the rotation angle of a wiper assembly shaft. Figure 3 .

[0018] Figure 4 This is a three-dimensional structural diagram of a testing mechanism for a wiper assembly shaft rotation angle testing fixture.

[0019] Figure 5 This is a three-dimensional structural diagram of the support mechanism for a testing fixture for the rotation angle of a wiper assembly shaft.

[0020] In the diagram: 1. Tooling base plate; 2. Support mechanism; 21. Support fixing seat; 22. Mounting plate; 221. Bolt hole; 3. Detection mechanism; 31. Detection adjustment seat; 32. Sensor mounting support rod; 33. Sensor mounting seat; 34. Sensor; 4. Position adjustment mechanism; 41. Horizontal guide rail; 42. Mounting bracket; 43. Longitudinal guide rail; 5. Detection height adjustment mechanism; 51. Column mounting plate; 52. Column; 53. Vertical guide rail; 6. Support height adjustment mechanism; 61. Support rod; 62. Support block; 63. Fixing block; 7. Slider. Detailed Implementation

[0021] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model. All other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.

[0022] Combination Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a fixture for testing the rotation angle of a wiper assembly shaft includes a fixture base plate 1. A support mechanism 2 for fixing and supporting the shaft of the wiper assembly is provided on the fixture base plate 1. A detection mechanism 3 for detecting the rotation angle of the wiper assembly shaft is provided on one side of the support mechanism 2. The support mechanism 2 and the detection mechanism 3 have a position adjustment mechanism 4 for adjusting the horizontal position in the XY axis direction of the fixture base plate 1. The detection mechanism 3 is located above the support mechanism 2 and has a detection height adjustment mechanism 5 for adjusting the height in the Z axis direction of the fixture base plate 1.

[0023] This utility model proposes a test fixture for the rotation angle of the shaft of a wiper assembly. The fixture base plate 1 serves as the base of the entire test fixture, providing a platform for the installation and support of other mechanisms, and is the basic structural part of the entire fixture.

[0024] The support mechanism 2 is mounted on the tooling base plate 1 and is used to fix and support the shaft of the wiper assembly, ensuring that the shaft remains stable during the test and providing a stable reference for subsequent rotation angle detection.

[0025] The detection mechanism 3 is located next to the support mechanism 2 and is used to detect the rotation angle of the wiper assembly shaft. It is a key component for obtaining shaft rotation angle data.

[0026] Both the support mechanism 2 and the detection mechanism 3 are equipped with a position adjustment mechanism 4, which can adjust the horizontal position of the support mechanism 2 and the detection mechanism 3 in the XY axis direction of the tooling base plate 1. By adjusting the horizontal position, the support mechanism 2 can better adapt to the fixing requirements of wiper assembly shafts of different specifications, while allowing the detection mechanism 3 to accurately align with the shaft for angle detection.

[0027] The testing mechanism 3 is equipped with a testing height adjustment mechanism 5. This allows the testing mechanism 3 to adjust its height in the Z-axis direction of the tooling base plate 1, further ensuring that the testing mechanism 3 can be in the most suitable position to test the rotation angle of the shaft, meeting the testing requirements of the shaft at different height positions.

[0028] When testing the rotation angle of the wiper assembly shaft, firstly, based on the specifications and positional requirements of the wiper assembly shaft, the horizontal position of the support mechanism 2 is adjusted in the XY axis direction of the fixture base plate 1 using the position adjustment mechanism 4, so that the support mechanism 2 can accurately fix and support the wiper assembly shaft. Simultaneously, based on the actual height of the shaft and the testing requirements, the height of the testing mechanism 3 is adjusted in the Z axis direction of the fixture base plate 1 using the testing height adjustment mechanism 5, so that the testing mechanism 3 is at a suitable testing height position.

[0029] Once the axle is stably fixed by the support mechanism 2, the wiper assembly is activated to rotate the axle. At this time, the detection mechanism 3 begins to work, detecting the rotation angle of the axle in real time and feeding back the detected angle data, thus completing the axle rotation angle test of the wiper assembly. Throughout the entire test process, the various mechanisms cooperate with each other to ensure the accuracy and reliability of the test.

[0030] Combination Figure 1 , Figure 2 and Figure 3 As shown, the position adjustment mechanism 4 includes a transverse guide rail 41 arranged in the X-axis direction of the tooling base plate 1, a mounting bracket 42 slidably connected to the transverse guide rail 41, and a longitudinal guide rail 43 in the Y-axis direction of the tooling base plate 1 arranged on the mounting bracket 42.

[0031] Specifically, the transverse guide rail 41 is fixedly mounted on the X-axis of the tooling base plate 1, serving as the guide for the entire position adjustment mechanism 4 to move in the X-axis direction. It provides a stable and precise track for the sliding of other components in the X-axis direction.

[0032] Mounting bracket 42 is slidably connected to transverse guide rail 41, and mounting bracket 42 can slide freely along transverse guide rail 41 in the X-axis direction. Mounting bracket 42 serves to connect transverse guide rail 41 and longitudinal guide rail 43, and is a key transition and support component.

[0033] The longitudinal guide rail 43 is mounted on the mounting bracket 42, and its direction is the Y-axis direction of the tooling base plate 1. The longitudinal guide rail 43 provides guidance for the movement of the component whose position needs to be adjusted in the Y-axis direction, and cooperates with the transverse guide rail 41 to realize the position adjustment function in the XY plane.

[0034] Combination Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, the support mechanism 2 includes a support fixing seat 21 slidably disposed on the longitudinal guide rail 43. A mounting plate 22 for fixing the end of the wiper assembly shaft is movably mounted on the support fixing seat 21. The mounting plate 22 has a support height adjustment mechanism 6 for adjusting the height in the Z-axis direction of the tooling base plate 1.

[0035] Specifically, the support mounting base 21 is slidably mounted on the longitudinal guide rail 43. The longitudinal guide rail 43 provides a sliding track for the support mounting base 21 in the Y-axis direction, allowing the support mounting base 21 to be adjusted in position along the longitudinal guide rail 43 to adapt to different positional requirements for supporting the wiper assembly shaft.

[0036] Mounting plate 22 is movably mounted on support base 21, directly fixing the end of the support shaft of the wiper assembly. The movable connection between mounting plate 22 and support base 21 allows mounting plate 22 to move within a certain range relative to support base 21, facilitating more flexible installation and adjustment of the shaft.

[0037] The support height adjustment mechanism 6 is mounted on the mounting plate 22, allowing the mounting plate 22 to be adjusted in height along the Z-axis direction of the tooling base plate 1. The support height adjustment mechanism 6 can adjust the height position of the mounting plate 22 according to the height requirements of different specifications of wiper assembly shafts, ensuring that the shaft can be stably and accurately supported.

[0038] Combination Figure 1 , Figure 2 , Figure 3 and Figure 5As shown, the mounting plate 22 has bolt holes 221, and the mounting plate 22 is fixedly connected to the end of the support wiper assembly shaft by bolts.

[0039] Specifically, the mounting plate 22 has bolt holes 221, which are evenly distributed at appropriate positions on the mounting plate 22. These bolt holes 221 are typically circular in shape and their size matches the specifications of the bolts used. They are used to insert bolts to achieve a fixed connection between the mounting plate 22 and the end of the wiper assembly shaft. The mounting plate 22 itself has a certain strength and rigidity to ensure that it will not deform during the rotation and testing of the wiper assembly shaft, thus ensuring the stability of the support.

[0040] Combination Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, the support height adjustment mechanism 6 includes a support rod 61 mounted on the support base 21. A support block 62 is mounted on the top of the support rod 61. A fixing block 63 is movably connected to the top of the support block 62. The top of the fixing block 63 is fixedly connected to the mounting plate 22. The support block 62 can lock or release the fixing block 63 by a quick-locking bolt.

[0041] Specifically, the support rod 61 is vertically mounted on the support base 21, serving as the basic support component of the entire support height adjustment mechanism 6. The support rod 61 can withstand the weight of the mounting plate 22 and the end of the wiper assembly shaft, providing stable support for the structure above.

[0042] The support block 62 is mounted on the top of the support rod 61 and is an important component connecting the support rod 61 and the fixing block 63. It provides an installation platform for the fixing block 63, and its shape and structural design facilitate movable connection with the fixing block 63 and engagement with quick-locking bolts.

[0043] The top end of the fixing block 63 is fixedly connected to the mounting plate 22, and its bottom end is movably connected to the support block 62. This allows the fixing block 63 to move up and down relative to the support block 62 within a certain range, thereby adjusting the height of the mounting plate 22.

[0044] The quick-locking bolt is used to lock or release the fixing block 63. When the quick-locking bolt is tightened, the fixing block 63 is pressed tightly against the support block 62, restricting the movement of the fixing block 63 and fixing the mounting plate 22 at the current height position; when the quick-locking bolt is loosened, the fixing block 63 can move up and down on the support block 62 to adjust the height of the mounting plate 22.

[0045] Combination Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the detection height adjustment mechanism 5 includes a column mounting plate 51 that is slidably mounted on a longitudinal guide rail 43, a column 52 that is fixedly mounted on the column mounting plate 51, and a vertical guide rail 53 that is slidably connected to the detection mechanism 3 on one side of the column 52.

[0046] Specifically, the column mounting plate 51 is slidably mounted on the longitudinal guide rail 43. The longitudinal guide rail 43 provides a sliding track for the column mounting plate 51 in the Y-axis direction, allowing the column mounting plate 51 to be adjusted in position along the longitudinal guide rail 43, thereby driving the entire detection height adjustment mechanism 5 to move in the Y-axis direction to meet the needs of detection at different positions.

[0047] The column 52 is fixedly installed on the column mounting plate 51 and serves as the main support structure for the height adjustment mechanism 5, providing a stable mounting base for the vertical guide rail 53. The column 52 ensures the stability of the detection mechanism 3 during height adjustment and detection processes.

[0048] A vertical guide rail 53 is located on one side of the column 52, and its direction is vertical (Z-axis direction). The vertical guide rail 53 provides a track for the detection mechanism 3 to slide in the height direction, so that the detection mechanism 3 can move up and down along the vertical guide rail 53, thereby realizing the adjustment of the detection height.

[0049] Combination Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the detection mechanism 3 includes a detection adjustment seat 31 that is slidably mounted on a vertical guide rail 53. A sensor mounting support rod 32 is mounted on the detection adjustment seat 31. A sensor mounting base 33 is connected to the outer end of the sensor mounting support rod 32. A sensor 34 is mounted on the sensor mounting base 33.

[0050] Specifically, the detection adjustment seat 31 is the basic connecting component of the detection mechanism 3, and it is slidably mounted on the vertical guide rail 53. Under the guidance of the vertical guide rail 53, the detection adjustment seat 31 can move up and down in the Z-axis direction, thereby driving the entire detection mechanism 3 to adjust its height position to adapt to the detection requirements at different height positions.

[0051] The sensor mounting support rod 32 is fixedly mounted on the detection adjustment seat 31, serving to connect the detection adjustment seat 31 and the sensor mounting seat 33. The sensor mounting support rod 32 has a certain length and strength, providing stable support for the sensor mounting seat 33. It can also extend the sensor mounting seat 33 to a suitable position according to actual detection needs, so that the sensor 34 can be accurately aligned with the relevant part of the wiper assembly being detected.

[0052] The sensor mounting base 33 is connected to the outer end of the sensor mounting support rod 32 and serves as the carrier for mounting the sensor 34. The shape and structural design of the sensor mounting base 33 are typically matched to the installation requirements of the sensor 34, ensuring that the sensor 34 is securely installed in the appropriate position and that the detection direction and angle of the sensor 34 meet the detection requirements.

[0053] Sensor 34, mounted on sensor mounting base 33, is the core component of detection mechanism 3. The type of sensor 34 depends on the specific detection task; it can sense various physical changes in the wiper assembly during operation in real time and convert these changes into electrical signals or other processable signal forms.

[0054] Combination Figure 1 , Figure 2 and Figure 3 As shown, the bottom of the mounting bracket 42, the support fixing seat 21 and the column mounting plate 51 are all provided with sliders 7 that match the transverse guide rail 41 and the longitudinal guide rail 43. The mounting bracket 42, the support fixing seat 21 and the column mounting plate 51 are all locked or released by quick-locking bolts.

[0055] Specifically, the transverse guide rail 41 is usually arranged along the X-axis, and the longitudinal guide rail 43 is arranged along the Y-axis. The two are perpendicular to each other, forming a two-dimensional moving plane, which allows the components mounted on it to be adjusted in both horizontal and vertical directions.

[0056] The slider 7 is a key connecting component that matches the transverse guide rail 41 and the longitudinal guide rail 43. Slider 7 is installed at the bottom of the mounting bracket 42, the support fixing base 21, and the column mounting plate 51. The shape and size of the slider 7 must be designed to match the corresponding guide rail to ensure smooth sliding on the guide rail while maintaining a certain level of connection stability, preventing wobbling or detachment from the guide rail during sliding. The slider 7 is generally made of wear-resistant, low-friction material to reduce sliding resistance and improve movement flexibility.

[0057] Mounting bracket 42 is a structural frame used to install and support other related equipment or components. It is connected to the horizontal guide rail 41 and the vertical guide rail 43 via the bottom slider 7, and can move on the rails to adjust the position of the equipment mounted on it.

[0058] The support base 21 is mainly used to support and fix other components, providing a stable support foundation for the entire device. Connected to the slide rail via the slider 7, it can be moved horizontally and vertically according to actual needs, adapting to different working scenarios and installation requirements.

[0059] The column mounting plate 51 is part of the detection height adjustment mechanism 5 and is used to mount components such as the column 52. It is connected to the longitudinal guide rail 43 via the bottom slider 7, allowing for position adjustment in the Y-axis direction, which in turn moves the entire detection height adjustment mechanism 5 to meet detection requirements at different positions.

[0060] Quick-locking bolts are provided on the mounting bracket 42, the support fixing seat 21, and the column mounting plate 51. By tightening or loosening these bolts, the relative positional relationship between the slider 7 and the slide rail can be controlled. When the quick-locking bolts are tightened, the slider 7 is pressed tightly onto the slide rail, increasing the friction between them and preventing the slider 7 from sliding further, thereby fixing the mounting bracket 42, the support fixing seat 21, or the column mounting plate 51 in the current position. When the quick-locking bolts are loosened, the friction between the slider 7 and the slide rail decreases, allowing the slider 7 to slide freely on the slide rail, thus adjusting the position of the component.

[0061] The above embodiments only illustrate one or more implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A fixture for testing the rotation angle of a wiper assembly shaft, comprising a fixture base plate (1), characterized in that, A support mechanism (2) for fixing and supporting the shaft of the wiper assembly is provided on the tooling base plate (1). A detection mechanism (3) for detecting the rotation angle of the shaft of the wiper assembly is provided on one side of the support mechanism (2). The support mechanism (2) and the detection mechanism (3) have a position adjustment mechanism (4) for adjusting the horizontal position in the XY axis direction of the tooling base plate (1). The detection mechanism (3) is located above the support mechanism (2) and has a detection height adjustment mechanism (5) for adjusting the height in the Z axis direction of the tooling base plate (1).

2. The fixture for testing the rotation angle of a wiper assembly shaft according to claim 1, characterized in that, The position adjustment mechanism (4) includes a transverse guide rail (41) provided in the X-axis direction of the tooling base plate (1), a mounting bracket (42) slidably connected on the transverse guide rail (41), and a longitudinal guide rail (43) in the Y-axis direction of the tooling base plate (1) provided on the mounting bracket (42).

3. The wiper assembly shaft rotation angle testing fixture according to claim 2, characterized in that, The support mechanism (2) includes a support fixing seat (21) that is slidably disposed on the longitudinal guide rail (43). A mounting plate (22) for fixing the end of the wiper assembly shaft is movably mounted on the support fixing seat (21). The mounting plate (22) has a support height adjustment mechanism (6) that adjusts the height in the Z-axis direction of the tooling base plate (1).

4. The fixture for testing the rotation angle of a wiper assembly shaft according to claim 3, characterized in that, The mounting plate (22) has bolt holes (221) and the mounting plate (22) is fixedly connected to the end of the support wiper assembly shaft by bolts.

5. The fixture for testing the rotation angle of a wiper assembly shaft according to claim 4, characterized in that, The support height adjustment mechanism (6) includes a support rod (61) set on the support fixed seat (21), a support block (62) is set at the top of the support rod (61), a fixed block (63) is movably connected to the top of the support block (62), the top of the fixed block (63) is fixedly connected to the mounting plate (22), and the support block (62) is locked or released by the fixed block (63) by a quick-locking bolt.

6. A fixture for testing the rotation angle of a wiper assembly shaft according to any one of claims 1 or 5, characterized in that, The detection height adjustment mechanism (5) includes a column mounting plate (51) that is slidably mounted on a longitudinal guide rail (43), a column (52) that is fixedly mounted on the column mounting plate (51), a vertical guide rail (53) that is provided on one side of the column (52), and the vertical guide rail (53) that is slidably connected to the detection mechanism (3).

7. The wiper assembly shaft rotation angle testing fixture according to claim 6, characterized in that, The detection mechanism (3) includes a detection adjustment seat (31) that is slidably set on a vertical guide rail (53). A sensor mounting support rod (32) is provided on the detection adjustment seat (31). A sensor mounting seat (33) is connected to the outer end of the sensor mounting support rod (32). A sensor (34) is provided on the sensor mounting seat (33).

8. The fixture for testing the rotation angle of the wiper assembly shaft according to claim 7, characterized in that, The bottom of the mounting bracket (42), the support fixing seat (21) and the column mounting plate (51) are all provided with sliders (7) that match the transverse guide rail (41) and the longitudinal guide rail (43). The mounting bracket (42), the support fixing seat (21) and the column mounting plate (51) are all locked or released by quick-locking bolts.

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