A wiper motor brush spring detection device

Abstract

This utility model discloses a wiper motor brush spring detection device, including a base, a start button (the start button is mounted on the base), a brush spring positioning component for positioning the brush spring, an image capturing component for capturing image information of the brush spring, and a data comparison component for comparing and judging the image information captured by the image capturing component with database information. The brush spring positioning component, image capturing component, and data comparison component are respectively mounted on the base, and the start button, brush spring positioning component, and image capturing component are electrically connected to the data comparison component. This utility model can automatically adjust the angle according to the angle of the brush spring and perform quality detection on the brush spring, featuring simple operation and high product stability.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts production and assembly technology, especially wiper motor assembly technology, and specifically to a wiper motor brush spring detection device. Background Technology

[0002] Motor brush springs are a key component in electric motors. Their main function is to provide consistent contact pressure between the brushes and the commutator, ensuring optimal conductivity and enabling smooth and efficient motor operation. Brushes, typically made of graphite or carbon, are used to transmit current between the stationary wires and rotating parts of the motor. Motor brush springs transmit current to the rotor windings by pushing the brushes against the rotating commutator and allowing the brushes to slide on its surface as the commutator rotates, thus driving the motor.

[0003] Motor brush springs are primarily made of steel sheets, typically in the form of compression springs or clockwork springs. Their main function is to provide stable pressure to ensure good contact between the brush and the commutator, thereby maintaining an effective electrical connection. This stable pressure helps prevent arcing and pitting, ensures continuous current transmission, and extends the motor's lifespan. Therefore, in automobiles, the wiper motor brush spring is a crucial component of the wiper motor.

[0004] Currently, the brush springs for automotive wiper motors are assembled manually. However, this manual assembly often results in omissions or incomplete installations, frequently leading to motor malfunctions in the market. To better prevent defective motors from entering the market, a manual visual inspection of the brush springs has been added to the production process. However, due to high production volumes, workers on night shifts or those experiencing fatigue may overlook certain areas. This not only results in low assembly efficiency and high labor intensity but also increases the risk of incomplete or insufficient coating, severely impacting the quality of motor assembly. Summary of the Invention

[0005] This invention provides a motor with an encoding structure. This invention can automatically adjust the angle according to the angle of the brush spring and perform quality inspection on the brush spring. It features simple operation and high product stability.

[0006] The technical solutions to the above technical problems are as follows:

[0007] A wiper motor brush spring detection device includes a base and a start button, with the start button disposed on the base;

[0008] Brush spring positioning assembly for positioning brush springs;

[0009] Image capturing component for capturing image information of brush springs;

[0010] A data comparison component used to compare and judge image information captured by the image capturing component with database information;

[0011] The brush spring positioning component, image capturing component, and data comparison component are respectively mounted on the base, and the start button, brush spring positioning component, and image capturing component are electrically connected to the data comparison component.

[0012] Furthermore, the brush spring positioning assembly includes a support mechanism and a rotary positioning mechanism. The support mechanism is mounted on the base, and the rotary positioning mechanism cooperates with the support mechanism.

[0013] Furthermore, the support mechanism includes a mounting base, a support plate, a connecting block, and a handrail. The mounting base is mounted on the base, the support plate is connected to both sides of the mounting base, the connecting block is connected to the support plate, and the handrail is mounted on the mounting base and is located on both sides of the support plate.

[0014] Furthermore, the rotary positioning mechanism includes a transmission mechanism, a transmission shaft, a support platform, a positioning plate, a positioning screw, a sensor, and a positioning pin. The transmission mechanism is located in the middle of the brush spring positioning assembly. The transmission shaft is connected to the transmission mechanism, the support platform is connected to the transmission shaft, and the positioning plate is connected to the support platform. Both the support platform and the positioning plate are provided with pin holes. The positioning pin passes through the pin holes to connect the positioning plate and the support platform. The sensor passes through the brush spring positioning assembly and is connected to the brush spring positioning assembly. The support platform is also provided with a screw hole. The positioning screw is threadedly connected to the screw hole on the support platform. The positioning screw is used to cooperate with the sensor.

[0015] Furthermore, the transmission mechanism includes a motor and a gearbox. The motor is mounted on the mounting base, the gearbox is connected to the motor, and the gearbox is connected to the positioning shaft.

[0016] Furthermore, the image capturing component includes a camera bracket and a camera, with the camera bracket mounted on a mounting base and the camera connected to the camera bracket.

[0017] Furthermore, the data comparison component includes a support rod and an industrial computer with a display screen. The support rod is mounted on a mounting base, and the industrial computer is connected to the support rod.

[0018] Pressing the start button activates the motor, which outputs torque to the gearbox. The gearbox then transmits power to the drive shaft, causing it to rotate. The drive shaft drives the support platform to rotate, which in turn rotates the positioning plate. The motor housing with the brush spring mounted on the positioning plate rotates along with the positioning plate. During this process, the industrial control computer controls a camera to take pictures of the motor housing with the brush spring. The camera uploads the captured images to the industrial control computer, which compares the obtained images with standard images stored in its memory. The industrial control computer determines whether there are any missing or improperly installed brush springs on the motor housing. If the product passes the test, the motor housing with the brush spring is removed. If the product fails the test, the industrial control computer issues an alarm. This invention has the following advantages:

[0019] 1. Reduced the difficulty of operation for employees; before the modification, it required 2 people to operate, but after the improvement, it can be completed by 1 person independently.

[0020] 2. Ensure product quality consistency and prevent issues such as missing or improperly assembled brush springs.

[0021] 3. Resolve issues of early motor failure and malfunction, reducing customer complaints.

[0022] 4. It conforms to ergonomics, is easy to operate, and reduces operator fatigue. Attached Figure Description

[0023] Figure 1 This is a perspective view of a wiper motor brush spring detection device.

[0024] Figure 2 This is a rear view of a wiper motor brush spring detection device.

[0025] Figure 3 This is a 3D view of the positioning plate.

[0026] Figure 4 This is an exploded view of the camera bracket.

[0027] Figure 5 This is a structural diagram of the first clamping component or the second clamping component.

[0028] The following components are included for mounting brush springs: motor housing A, base 1, start button 2, mounting base 3, support plate 4, connecting block 5, handrail 6, drive shaft 7, support platform 8, positioning plate 9, L-shaped pressure block 9a1, clamping screw 9a2, fixed shaft 9b, support 9c, limiting protrusion 9d, first positioning screw 9e, positioning screw 10, sensor 11, positioning pin 12, motor 13, gearbox 14, bracket 15, horizontal axis bracket 15a, vertical axis bracket 15b, first clamping assembly 15c, second clamping assembly 15d, bracket 15e, block component 15f, first clamping screw 15g, second clamping screw 15h, first through hole 15i, first opening 15j, second through hole 15k, second opening 15m, camera 16, support rod 17, and industrial computer 18. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0030] like Figures 1 to 5 As shown, the present invention provides a wiper motor brush spring detection device, which includes a base 1 and a start button 2, the start button 2 being disposed on the base 1;

[0031] Brush spring positioning assembly for positioning and mounting the brush spring in motor housing A;

[0032] Image capturing component for capturing image information of motor housing A with brush springs installed;

[0033] A data comparison component used to compare and judge image information captured by the image capturing component with database information;

[0034] The brush spring positioning component, image capturing component, and data comparison component are respectively mounted on the base 1. The start button 2, brush spring positioning component, and image capturing component are electrically connected to the data comparison component.

[0035] like Figure 1 As shown, the brush spring positioning assembly includes a support mechanism and a rotary positioning mechanism. The support mechanism is mounted on the base 1, and the rotary positioning mechanism cooperates with the support mechanism.

[0036] like Figure 1 As shown, the support mechanism includes a mounting base 3, a support plate 4, a connecting block 5, and a handrail 6. The mounting base 3 is mounted on the base 1. The two support plates 4 are vertically fixed on both sides of the mounting base 3. The two support plates 4 are parallel to each other. A through hole is provided in the middle of the support plate 4 to facilitate observation of the situation in the middle of the two support plates 4. The through hole also helps to reduce the weight of the support plate 4, save materials, and reduce the manufacturing cost of the support plate 4. The two ends of the connecting block 5 are connected to the two support plates 4 respectively and are perpendicular to each other. The handrail 6 is fixed on the mounting base 3 and is provided on both sides of the support plate 4.

[0037] like Figures 1 to 3 As shown, the rotary positioning mechanism includes a transmission mechanism, a transmission shaft 7, a support platform 8, a positioning plate 9, a positioning screw 10, a sensor 11, and a positioning pin 12. The transmission mechanism is located in the middle of the mounting base 3. The transmission shaft 7 is connected to the transmission mechanism, the support platform 8 is connected to the transmission shaft 7, and the positioning plate 9 is connected to the support platform 8. Both the support platform 8 and the positioning plate 9 are provided with pin holes. The positioning pin 12 passes through the pin holes to connect the positioning plate 9 and the support platform 8. The positioning plate 9 is provided with clamping components on both sides. The clamping components consist of an L-shaped clamping block 9a1 and a clamping screw 9a2. The clamping screw 9a2 passes through the L-shaped clamping block 9a1 and is threadedly connected to the support platform 8, so that the L-shaped clamping block 9a1 presses the positioning plate 9 onto the support platform 8.

[0038] The positioning plate 9 is L-shaped and is also provided with a fixed shaft 9b. The motor housing A on which the brush spring is installed is provided with a mounting hole. The fixed shaft 9b and the mounting hole on the motor housing A on which the brush spring is installed are clearance-fitted. The positioning plate 9 is also provided with a support 9c. The support 9c is fixed to the positioning plate 9 by screws. The upper end of the support 9c is provided with a limiting protrusion 9d. The positioning plate 9 is also provided with a first positioning screw 9e. The first positioning screw 9e is threadedly connected to the positioning plate 9. After the motor housing A with the brush spring installed is fitted with the positioning plate 9, the fixed shaft 9b is inserted into the mounting hole on the motor housing A with the brush spring installed. The fixed shaft 9b forms the first support for the motor housing A with the brush spring installed. The support 9c is supported by the first positioning screw 9e. The support 9c is fed towards the positioning plate 9 along the first positioning screw 9e, so that the motor housing A with the brush spring installed is clamped between the limiting protrusion 9d and the positioning plate 9. Then, the locking screw passes through the threaded hole on the positioning plate 9 and is threaded to connect the support 9c and the positioning plate 9, so that the support 9c and the positioning plate 9 are fastened together. The support 9c also forms the second support for the motor housing A with the brush spring installed.

[0039] Sensor 11 passes through and connects to the brush spring positioning assembly. In this embodiment, sensor 11 is threadedly connected to connecting block 5, so that the height of sensor 11 can be adjusted as needed. The support platform 8 is also provided with screw holes, and positioning screw 10 is threadedly connected to the screw holes on the support platform 8. Positioning screw 10 is used to cooperate with sensor 11. Sensor 11 can be a proximity switch. Since the transmission mechanism drives the support platform 8 to rotate, the support platform 8 drives the positioning plate 9 to rotate. The motor housing A with brush spring installed is installed on the positioning plate 9. So when the positioning plate 9 rotates, the motor housing A with brush spring installed rotates with the positioning plate 9. By sensing the positioning screw 10 through sensor 11, the rotation angle of support platform 8 can be accurately detected.

[0040] like Figures 1 to 2As shown, the transmission mechanism includes a motor 13 and a gearbox 14. The motor 13 is mounted on the mounting base 3, the gearbox 14 is connected to the motor 13, and the gearbox 14 is connected to the transmission shaft 7. Under the driving action of the motor 13, the gearbox 14 drives the transmission shaft 7 to rotate, and the transmission shaft 7 drives the support platform 8 connected to it to rotate.

[0041] like Figure 1 As shown, the image capturing assembly includes a camera bracket 15 and a camera 16. The camera bracket 15 is mounted on the mounting base 3, and the camera 16 is connected to the camera bracket 15. The camera 16 is preferably an IV3 vision camera.

[0042] like Figure 4 As shown, the camera bracket 15 includes a horizontal axis bracket 15a, a vertical axis bracket 15b, a first clamping component 15c, a second clamping component 15d, and a bracket 15e. The horizontal axis bracket 15a and the vertical axis bracket 15b are fixed by the first clamping component 15c. The second clamping component 15d is fixed to the horizontal axis bracket 15a, and the bracket 15e is fixed to the second clamping component 15d. The camera 16 is fixed to the bracket 15e, and the angle of the camera 16 can be adjusted by the second clamping component 15d.

[0043] Both the first clamping assembly 15c and the second clamping assembly 15d include a block component 15f, a first clamping screw 15g, and a second clamping screw 15h. One end of the block component 15f is provided with a first through hole 15i and a first opening 15j, which are connected. The other end of the block component 15f is provided with a second through hole 15k and a second opening 15m, which are connected. The axial direction of the first through hole 15i is perpendicular to the axial direction of the second through hole 15k. The block component 15f is provided with first mounting holes located on both sides of the first opening 15j. The first clamping screw 15g is threadedly connected to the first mounting hole. The block component 15f is also provided with second mounting holes located on both sides of the second opening 15m. The second clamping screw 15h is threadedly connected to the second mounting hole.

[0044] For example, after the horizontal axis bracket 15a passes through the first through hole 15i, torque is applied to the first clamping screw 15g, which reduces the opening of the first opening 15j, thereby clamping the horizontal axis bracket 15a. Similarly, after the vertical axis bracket 15b passes through the second through hole 15k, torque is applied to the second clamping screw 15h, which reduces the opening of the second opening 15m, thereby clamping the vertical axis bracket 15b.

[0045] like Figure 1 As shown, the data comparison component includes a support rod 17 and an industrial computer 18 with a display screen. The support rod 17 is mounted on the mounting base 3, and the industrial computer 18 is connected to the support rod 17. The industrial computer 18 has the functions of displaying captured photos, performing data analysis, and exporting data.

[0046] The specific working process of this utility model is as follows:

[0047] S1. After the brush spring is installed in the motor housing A, the operator inserts the fixing shaft 9b into the mounting hole on the motor housing A. The fixing shaft 9b forms the first support for the motor housing A. The support 9c is supported by the first positioning screw 9e. The support 9c is fed towards the positioning plate 9 along the first positioning screw 9e, so that the motor housing A with the brush spring is clamped between the limiting protrusion 9d and the positioning plate 9. Then, the locking screw passes through the threaded hole on the positioning plate 9 and is threaded to connect the support 9c and the positioning plate 9, so that the support 9c and the positioning plate 9 are fastened together. The support 9c also forms the second support for the motor housing A with the brush spring.

[0048] S2, press the start button 2, the motor 13 starts working, the motor 13 outputs torque to the gearbox 14, the gearbox 14 outputs power to the drive shaft 7, causing the drive shaft 7 to rotate. The drive shaft 7 drives the support platform 8 to rotate, the support platform 8 rotates with the positioning plate 9, and the motor housing A with the brush spring installed on the positioning plate 9 rotates with the positioning plate 9. During this process, the industrial control computer 18 controls the camera 16 to take pictures of the motor housing A with the brush spring installed. The camera 16 uploads the captured images to the industrial control computer 18. The industrial control computer 18 compares the obtained images with the standard images stored in the industrial control computer 18's memory to determine whether there are any missing or improperly installed brush springs on the motor housing A. If the product is qualified, the tested motor housing A with the brush spring installed can be removed. If the product fails the test, the industrial control computer 18 will issue an alarm.

[0049] During the above process, the initial position of the positioning plate 9 is when the position of the sensor 11 corresponds to the position of the positioning screw 10. After the transmission mechanism drives the support platform 8 to rotate with the positioning plate 9, the positioning screw 10 leaves the position corresponding to the sensor 11. As the support platform 8 continues to rotate, when the positioning screw 10 re-corresponds to the sensor 11, the industrial control computer 18 controls the motor 13 to stop working, thereby switching the support platform 8 and the positioning plate 9 from the rotating state to the stationary state.

Claims

1. A wiper motor brush spring detection device, characterized by, Includes a base (1) and a start button (2), with the start button (2) located on the base (1); Brush spring positioning assembly for positioning the motor housing (A) on which the brush spring is mounted; Image capturing component for capturing image information of the motor housing (A) on which the brush springs are installed; A data comparison component used to compare and judge image information captured by the image capturing component with database information; Among them, the brush spring positioning component, the image capturing component, and the data comparison component are respectively set on the base (1), and the start button (2), the brush spring positioning component, and the image capturing component are electrically connected to the data comparison component.

2. The wiper motor brush spring detection device according to claim 1, characterized in that, The brush spring positioning assembly includes a support mechanism and a rotary positioning mechanism. The support mechanism is set on the base (1), and the rotary positioning mechanism cooperates with the support mechanism.

3. The wiper motor brush spring detection device according to claim 2, characterized in that, The support mechanism includes a mounting base (3), a support plate (4), a connecting block (5), and a handrail (6). The mounting base (3) is set on the base (1), the support plate (4) is connected to both sides of the mounting base (3), the connecting block (5) is connected to the support plate (4), and the handrail (6) is installed on the mounting base (3) and is set on both sides of the support plate (4).

4. The wiper motor brush spring detection device according to claim 2, characterized in that, The rotary positioning mechanism includes a transmission mechanism, a transmission shaft (7), a support platform (8), a positioning plate (9), a positioning screw (10), a sensor (11), and a positioning pin (12). The transmission mechanism is located in the middle of the brush spring positioning assembly. The transmission shaft (7) is connected to the transmission mechanism. The support platform (8) is connected to the transmission shaft (7). The positioning plate (9) is connected to the support platform (8). Both the support platform (8) and the positioning plate (9) are provided with pin holes. The positioning pin (12) passes through the pin holes to connect the positioning plate (9) and the support platform (8). The sensor (11) passes through the brush spring positioning assembly and is connected to the brush spring positioning assembly. The support platform (8) is also provided with screw holes. The positioning screw (10) is threadedly connected to the screw holes on the support platform (8). The positioning screw (10) is used to cooperate with the sensor (11).

5. A wiper motor brush spring detection device according to claim 4, characterized in that, The transmission mechanism includes a motor (13) and a gearbox (14). The motor (13) is mounted on the mounting base (3), the gearbox (14) is connected to the motor (13), and the gearbox (14) is connected to the transmission shaft (7).

6. The wiper motor brush spring detection device according to claim 1, characterized in that, The image capturing assembly includes a camera bracket (15) and a camera (16). The camera bracket (15) is mounted on a mounting base (3), and the camera (16) is connected to the camera bracket (15).

7. The wiper motor brush spring detection device according to claim 1, characterized in that, The data comparison component includes a support rod (17) and an industrial computer (18) with a display screen. The support rod (17) is mounted on the mounting base (3), and the industrial computer (18) is connected to the support rod (17).

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