Sensor functionality test equipment

Abstract

The utility model discloses a sensor functionality test device, which comprises a base box body and an upper box body, the base box body is provided with a rotary motion test assembly, a linear motion test assembly and two chuck rack assemblies, and the two chuck rack assemblies are respectively arranged corresponding to the rotary motion test assembly and the linear motion test assembly; the upper box body is provided with a rotating speed and torque display instrument, a button plate and a touch screen, the rotating speed and torque display instrument and the button plate are electrically connected with the rotary motion testing assembly, and the touch screen is electrically connected with a tested sensor. The sensor functionality test equipment can test sensors of different types, different specifications and different motion types, simulates and loads different accelerations, speeds and motion forms of detected equipment parts, and measures the detection precision and functionality of the sensors; operation is simple and fast, and testing efficiency is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to test equipment field, concretely relates to a sensor functional test equipment. BACKGROUND

[0002] In lithium battery equipment, the importance of various electric element detection devices is self-evident. They can accurately detect various key parameters of battery production, timely find and eliminate potential faults, ensure stable battery performance, and provide solid support for improving product quality and user experience. Therefore, the electric element detection device is an indispensable key component of lithium battery equipment.

[0003] With the increasing integration of electrical and information technology in industrial equipment, the types and models of sensors used in lithium battery equipment to obtain various types of information are also more diverse. To ensure the reliability of the detection device under the working condition of the equipment, it is necessary to test the functionality and accuracy of various electric element detection devices used in the equipment to ensure the reliability of the equipment during operation. Due to the diversity of electric element detection devices (electric element detection devices include: photoelectric sensor, inductive sensor, contact sensor, ultrasonic sensor, etc. Electrical sensor), a test equipment capable of testing the performance of multiple types of sensors is needed. SUMMARY

[0004] In order to overcome the shortcomings of the prior art, the utility model provides a sensor functional test equipment, which can test different types, different specifications and different motion types of sensors, simulate loading different acceleration, speed and motion forms of detected equipment parts, and measure the detection accuracy and functionality of the sensor with small power loss. Simple and fast operation, high test efficiency.

[0005] The utility model solves the technical problems by adopting the following technical scheme:

[0006] A sensor functional test equipment, comprising a base box and an upper box, a rotating motion test assembly, a linear motion test assembly and two chuck rack assemblies are arranged on the base box, the two chuck rack assemblies are respectively arranged corresponding to the rotating motion test assembly and the linear motion test assembly, the rotating motion test assembly is used to drive the detection block to rotate, the linear motion test assembly is used to drive the detection block to move linearly, and the chuck rack assembly is used to clamp the measured sensor. A rotating speed and torque display instrument and a touch screen are arranged on the upper box, the rotating speed and torque display instrument is electrically connected with the rotating motion test assembly and is used to display the rotating speed of the detection block, and the touch screen is electrically connected with the measured sensor and is used to display the detection data of the measured sensor.

[0007] As a further improvement of the above technical solution, the chuck frame assembly comprises a base, a clamp, a vertical adjusting member and a horizontal adjusting member, the clamp is installed on the movable end of the horizontal adjusting member, the horizontal adjusting member is installed on the movable end of the vertical adjusting member, the vertical adjusting member is installed on the base box through the base, and the clamp is used for clamping the measured sensor.

[0008] As a further improvement of the above technical solution, the clamp comprises a chuck seat, a guide shaft arranged on the chuck seat, a clamping plate slidably connected to the guide shaft, and a fine adjustment member for driving the clamping plate to move, a clamping space is formed between the clamping plate and the bottom plate of the chuck seat, when the measured sensor is placed in the clamping space, the fine adjustment member drives the clamping plate to move towards the measured sensor to clamp the measured sensor.

[0009] As a further improvement of the above technical solution, the fine adjustment member comprises a screw rod rotatably arranged on the chuck seat, the screw rod penetrates the clamping plate and is threadedly connected with the clamping plate, and one end of the screw rod is connected with a fine adjustment hand wheel.

[0010] As a further improvement of the above technical solution, the side of the clamping plate opposite to the bottom plate of the chuck seat is provided with a rubber pad.

[0011] As a further improvement of the above technical solution, the vertical adjusting member comprises a vertical adjusting shaft and a clamping block, the bottom end of the vertical adjusting shaft is fixedly connected to the base, the clamping block is provided with a first adjusting hole and a first locking handle, the vertical adjusting shaft is slidably connected in the first adjusting hole, and the first locking handle is used for locking or unlocking the vertical adjusting shaft and the clamping block.

[0012] As a further improvement of the above technical solution, the horizontal adjusting member comprises a horizontal adjusting shaft, the clamping block is provided with a second adjusting hole and a second locking handle, the horizontal adjusting shaft is slidably connected in the second adjusting hole, the second locking handle is used for locking or unlocking the horizontal adjusting shaft and the clamping block, and the end of the horizontal adjusting shaft is fixedly connected with the chuck seat.

[0013] As a further improvement of the above technical solution, the rotary motion test assembly comprises a mounting seat, a motor, a mounting shaft and an encoder, the mounting shaft is rotatably connected to the mounting seat, the encoder is connected to the other end of the mounting shaft away from the motor, a detection block is installed on the mounting shaft, the main shaft of the motor is connected to one end of the mounting shaft for driving the mounting shaft to rotate, so as to drive the detection block to rotate; the detection block is used for changing the distance between the measured sensor and the detection block when the detection block rotates.

[0014] The detection block comprises a connecting part, a fixing part and a detection part, the connecting part is detachably connected with the fixing part, a first semicircular groove is arranged on the side of the connecting part close to the fixing part, a second semicircular groove is arranged on the side of the fixing part close to the connecting part, when the connecting part is connected with the fixing part into an integral whole, the first semicircular groove and the second semicircular groove form a mounting circular hole, the mounting circular hole is sleeved on the mounting shaft, the detection part is integrally formed on the side of the connecting part away from the fixing part, the side of the detection part away from the connecting part is a circular arc surface, and the center of the circular arc surface has a distance from the center of the mounting circular hole, when the detection block rotates with the mounting shaft, the movement track of the circular arc surface of the detection part forms an irregular movement track based on the axis of the mounting shaft.

[0015] As a further improvement of the above technical solution, the linear motion test assembly comprises a first linear module and a second linear module, the length of the second linear module is greater than the length of the first linear module, and the detection block is installed at the output end of the first linear module or the second linear module.

[0016] As a further improvement of the above technical solution, a three-color alarm lamp is arranged on the upper box body, and the three-color alarm lamp is electrically connected with the touch screen.

[0017] The beneficial effects of the present application are as follows: by adjusting the size of the clamping space in the chuck rack assembly, different types, different specifications, different motion types of sensors can be tested, then by rotating the motion test assembly and the linear motion test assembly, different accelerations, speeds and motion forms of the detected equipment parts can be simulated, the detection accuracy and functionality of the sensor can be measured under the condition of small power loss, the operation is simple and fast, and the test efficiency is high. BRIEF DESCRIPTION OF DRAWINGS

[0018] The present application will be further described below in combination with the drawings and examples.

[0019] Figure 1 is an assembly schematic view of a sensor functionality test equipment in the embodiment of the present application;

[0020] Figure 2 is Figure 1 is a structural schematic view of the present application after the upper box body is hidden;

[0021] Figure 3 is a structural schematic view of a chuck rack assembly in the embodiment of the present application;

[0022] Figure 4 is a sectional view of the clamping block along the horizontal position adjusting shaft in the embodiment of the present application;

[0023] Figure 5 is a structural schematic view of a rotating motion test assembly in the embodiment of the present application;

[0024] Figure 6 is the front view of the measured object of the rotating motion test assembly in the embodiment of the application;

[0025] Figure 7 is the detection state schematic view of the rotating motion test assembly in the embodiment of the application.

[0026] Signs: 1, base box; 2, upper box; 3, chuck rack assembly; 31, base; 32, vertical position adjusting shaft; 33, clamping block; 34, first locking handle; 35, second locking handle; 36, horizontal position adjusting shaft; 37, clamp; 371, chuck seat; 372, guide shaft; 373, screw; 374, fine adjustment hand wheel; 375, clamping plate; 376, rubber pad; 38, measured sensor; 4, rotating motion test assembly; 41, mounting seat; 42, mounting shaft; 43, detection block; 431, fixed part; 432, connecting part; 433, detection part; 434, arc surface; 435, missing hole; 436, mounting round hole; 44, motor base; 45, motor; 46, shaft coupling; 47, encoder; 5, first linear module; 6, second linear module; 7, button plate; 8, speed and torque display instrument; 9, touch screen; 10, three-color alarm lamp. DETAILED DESCRIPTION

[0027] The concept, specific structure and generated technical effects of the utility model will be described clearly and completely in combination with the embodiments and drawings, so as to fully understand the purpose, features and effects of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments, and other embodiments obtained by the person skilled in the art without creative labor based on the embodiments of the utility model all belong to the protection scope of the utility model. In addition, all the coupling / connection relations involved in the patent are not single component direct connection, but can be connected to form a better coupling structure by adding or reducing coupling auxiliary components according to the specific implementation situation, such as screw, bolt and other auxiliary components, which can also be connected directly by welding, bonding and other ways. The various technical features in the utility model creation can be combined interactively without mutual contradiction and conflict.

[0028] Reference Figure 1 and Figure 2The utility model provides an embodiment provides a kind of sensor functional test equipment, for testing the function of sensor and the accuracy of detection data, it includes base box 1 and upper box 2, rotating motion test assembly 4, linear motion test assembly and two chuck rack assemblies 3 are provided on the base box 1, two chuck rack assemblies 3 are respectively corresponding rotating motion test assembly 4, linear motion test assembly setting, rotating motion test assembly 4 is used to drive detection block 43 (detection block 43 refers to the object of analog detected equipment parts) rotation, linear motion test assembly is used to drive detection block 43 to do linear motion, chuck rack assembly 3 is used to clamp measured sensor 38.

[0029] The upper box 2 includes frame body and frame shield, for covering rotating motion test assembly 4, linear motion test assembly and chuck rack assembly 3, so that rotating motion test assembly 4, linear motion test assembly and chuck rack assembly 3 are separated from the external environment, avoid environmental interference, improve the accuracy of test.

[0030] Rotating speed torque display instrument 8, button plate 7 and touch screen 9 are provided on the upper box 2, the start-stop of test equipment is operated through the button plate 7, the rotating speed torque display instrument 8 is electrically connected with the rotating motion test assembly 4, for displaying the rotating speed, torque and other information of detection block 43, the touch screen 9 is electrically connected with measured sensor 38, for displaying the detection data of measured sensor 38, the linear motion test assembly is also electrically connected with touch screen 9, and the speed and acceleration of linear motion driven by detection block 43 are regulated through touch screen 9.

[0031] In the embodiment, for detecting linear motion type sensor, detection block 43 matched with detected equipment parts can be designed, detection block 43 is fixed on linear motion test assembly, corresponding linear motion acceleration, running speed and other outputs are output to linear motion test assembly through touch screen 9 (built-in equipment control system), drive detection block 43 to move, measured sensor 38 is fixed on chuck rack assembly 3 corresponding to linear motion test assembly, the result output on touch screen 9 through measured sensor 38 is compared with set motion, whether the accuracy and functionality of linear type sensor meet the demand is measured.

[0032] For the sensor detecting the rotary motion, the measured sensor 38 can be fixed on the chuck frame assembly 3 corresponding to the rotary motion test assembly 4, the position of the measured sensor 38 is adjusted to be centered with the detection block 43 on the rotary motion test assembly 4, the set rotary motion is input into the rotary motion test assembly 4 through the touch screen 9 (the built-in equipment control system) to drive the detection block 43 to move, the result output by the measured sensor 38 on the touch screen 9 is compared with the set motion (the rotary motion test assembly 4 driving the detection block 43 to move can display the rotation speed and torque data), and whether the accuracy and functionality of the rotary sensor meet the requirements are measured.

[0033] In the embodiment, referring to Figure 3 , the chuck frame assembly 3 comprises a base 31, a clamp 37, a vertical adjusting part and a horizontal adjusting part, the clamp 37 is installed on the movable end of the horizontal adjusting part, the horizontal adjusting part is installed on the movable end of the vertical adjusting part, the vertical adjusting part is installed on the base box 1 through the base 31, and the clamp 37 is used for clamping the measured sensor 38. In this way, the height of the measured sensor 38 is adjusted through the vertical adjusting part, the position of the measured sensor 38 in the horizontal direction is adjusted through the horizontal adjusting part, so that the measured sensor 38 can be centered with the detection block 43, and the detection effect of the measured sensor 38 on the detection block 43 is improved.

[0034] Further, the clamp 37 comprises a collet seat 371, guide shafts 372, a clamping plate 375, and a fine adjustment component. The collet seat 371 is a 'F' shaped structure, comprising a vertical plate, a top plate and a bottom plate, the top plate and the bottom plate are respectively vertically connected to the two sides of the vertical plate. The guide shafts 372 are two, and the two guide shafts 372 are arranged in parallel between the top plate and the bottom plate of the collet seat 371. The clamping plate 375 is slidably connected to the two guide shafts 372, which ensures that the clamping plate 375 stably slides along the guide shaft 372 without deflection. A clamping space is formed between the clamping plate 375 and the bottom plate of the collet seat 371. Rubber pads 376 are arranged on the side of the clamping plate 375 opposite to the bottom plate of the collet seat 371, so as to avoid the measured sensor 38 from being clamped. The fine adjustment component is used to drive the clamping plate 375 to move to adjust the size of the clamping space. Specifically, the fine adjustment component comprises a screw rod 373 rotatably arranged on the collet seat 371. The screw rod 373 is located between the two guide shafts 372. The screw rod 373 penetrates the clamping plate 375 and is threadedly connected with the clamping plate 375. The two ends of the screw rod 373 are rotatably connected with the top plate and the bottom plate respectively. A fine adjustment hand wheel 374 is connected with one end of the screw rod 373 located on the top plate. When the measured sensor 38 is placed in the clamping space, the fine adjustment hand wheel 374 is rotated to drive the screw rod 373 to rotate. When the screw rod 373 rotates, the clamping plate 375 is driven to move towards the measured sensor 38, so as to clamp the measured sensor 38 together with the bottom plate of the collet seat 371. When it is needed to take down the measured sensor 38, the fine adjustment hand wheel 374 is reversely rotated to drive the clamping plate 375 to move away from the measured sensor 38. The measured sensor 38 can be taken down without being clamped by the clamping plate 375 and the bottom plate of the collet seat 371.

[0035] Further, the vertical adjustment component comprises a vertical adjustment shaft 32 and a clamping block 33. The bottom end of the vertical adjustment shaft 32 is fixedly connected to the base 31. The clamping block 33 is provided with a first adjusting hole and a first locking handle 34. The vertical adjustment shaft 32 is slidably connected in the first adjusting hole. The first locking handle 34 is used to lock or unlock the vertical adjustment shaft 32 and the clamping block 33. When it is needed to adjust the height of the measured sensor 38, the first locking handle 34 is opened, so that the clamping block 33 can move on the vertical adjustment shaft 32, thereby adjusting the height of the measured sensor 38. Then, the first locking handle 34 is closed to fix the height of the measured sensor 38. In addition, when the first locking handle 34 is opened, the clamping block 33 can also be rotated along the circumferential direction of the vertical adjustment shaft 32 (i.e. the R-axis direction), so as to adjust the position and angle of the measured sensor 38 in the horizontal direction. Figure 3

[0036] ​The horizontal adjusting member comprises a horizontal adjusting shaft 36, the clamping block 33 is provided with a second adjusting hole and a second locking handle 35, the horizontal adjusting shaft 36 is slidingly connected in the second adjusting hole, the second locking handle 35 is used for locking or unlocking the horizontal adjusting shaft 36 and the clamping block 33, the end of the horizontal adjusting shaft 36 is fixedly connected with the clamping block 371, when it is needed to adjust the horizontal position of the measured sensor 38, the second locking handle 35 is opened, the vertical adjusting shaft 32 is moved in the clamping block 33, thereby the horizontal position of the measured sensor 38 is adjusted, then the second locking handle 35 is closed, the measured sensor 38 is fixed at the position; in addition, when the second locking handle 35 is opened, the horizontal adjusting shaft 36 can also be rotated in the clamping block 33 (the rotating direction is the W-axis direction), thereby the position and angle of the measured sensor 38 in the vertical direction are adjusted. Figure 3

[0037] Specifically, referring to Figure 4 , the clamping block 33 is an elastic clamping block 33, the first adjusting hole and the second adjusting hole are both communicated with an adjusting groove, in a normal state, the vertical adjusting shaft 32 and the horizontal adjusting shaft 36 can be respectively sliding in the first adjusting hole and the second adjusting hole, when it is needed to lock the vertical adjusting shaft 32 and the clamping block 33, the first locking handle 34 is driven to deform the clamping block 33 to make the width of the adjusting groove connected with the first adjusting hole smaller, thereby the vertical adjusting shaft 32 is fixed in the first adjusting hole, similarly, when it is needed to lock the horizontal adjusting shaft 36 and the clamping block 33, the second locking handle 35 is driven to deform the clamping block 33 to make the width of the adjusting groove connected with the second adjusting hole smaller, thereby the horizontal adjusting shaft 36 is fixed in the second adjusting hole.

[0038] Specifically, the first locking handle 34 and the second locking handle 35 both comprise a locking screw and a handle, the handle is fixedly connected with the head of the locking screw, the clamping block 33 is located at the elastic part and the fixed part on both sides of the adjusting groove, the locking screw can be screwed into the threaded hole on the elastic part and threadedly connected into the threaded hole on the fixed part, when the handle is rotated to drive the locking screw to be screwed into the fixed part direction, the head of the locking screw will abut against the elastic part of the clamping block 33, so that the elastic part is deformed to the adjusting groove direction, thereby the size of the first / second adjusting hole communicated with the adjusting groove is smaller, thereby the locking of the horizontal adjusting shaft 36 or the vertical adjusting shaft 32 is realized, the handle can be reversely rotated to be unlocked.

[0039] In the embodiment, referring to Figure 5 ​The rotary motion testing assembly 4 includes a mounting base 41, a motor 45, a mounting shaft 42, and an encoder 47. The mounting base 41 is fixed to the base housing 1. The mounting shaft 42 is rotatably connected to the mounting base 41. The motor 45 is fixed to the mounting base 41 via a motor seat 44, and the main shaft of the motor 45 is connected to one end of the mounting shaft 42 via a coupling 46. The encoder 47 is connected to the other end of the mounting shaft 42 away from the motor 45. A detection block 43 is mounted on the mounting shaft 42. The motor 45 drives the mounting shaft 42 to rotate, thereby driving the detection block 43 to rotate. The encoder 47 precisely controls and provides feedback on the movement of the detection block 43, and outputs the result on the speed and torque display instrument 8.

[0040] Specifically, refer to Figure 7 The surface to be detected of the detection block 43 is an irregular arc surface with different radii (centered on the axis of the mounting shaft 42). That is, when the detection block 43 rotates, the distance between the detection block 43 and the fixed sensor 38 under test can be changed (e.g., from S1 to S2), thereby achieving a change in the distance to be detected, and comparing the value read on the sensor 38 under test.

[0041] More specifically, refer to Figure 6 The detection block 43 includes a connecting part 432, a fixing part 431, and a detection part 433. The connecting part 432 and the fixing part 431 are detachably connected by screws. The connecting part 432 is provided with a first semi-circular groove on the side near the fixing part 431, and the fixing part 431 is provided with a second semi-circular groove on the side near the connecting part 432. When the connecting part 432 and the fixing part 431 are connected as one unit, the first semi-circular groove and the second semi-circular groove form a mounting hole 436. The mounting hole 436 is sleeved on the mounting shaft 42. The connecting part 432 and the fixing part 431 are locked by screws, thus completing the installation of the detection block 43. The detection part 433 is integrally formed on the side of the connecting part 432 away from the fixing part 431. The detection part 433 has a fan-shaped structure and a notch 435 is provided on the detection part 433 to reduce its weight. The side of the detection part 433 away from the connecting part 432 is an arc surface 434, and the center of the arc surface 434 is a distance away from the center of the mounting hole 436. That is to say, when the detection block 43 rotates with the mounting shaft 42, the movement trajectory of the arc surface 434 of the detection part 433 forms an irregular movement trajectory based on the axis of the mounting shaft 42, which changes the distance between the detection block 43 and the fixed sensor 38.

[0042] In this embodiment, refer to Figure 1The linear motion testing assembly includes a first linear module 5 and a second linear module 6. The length of the second linear module 6 is greater than the length of the first linear module 5. Both the first linear module 5 and the second linear module 6 use a linear motor 45. The specifications of the first linear module 5 are smaller than those of the second linear module 6. According to the required installation size of the detection block 43, a suitable size of the first linear module 5 or the second linear module 6 is selected. The detection block 43 is installed on the mover of the linear motor 45. The set linear motion acceleration / deceleration, running speed, etc. are output to the linear motor 45 to drive the detection block 43 to move.

[0043] In this embodiment, a three-color alarm light 10 is provided on the upper housing 2. The three-color alarm light 10 is electrically connected to the touch screen 9. The three-color alarm light 10 uses red, yellow and green. According to the result output by the sensor under test 38 on the touch screen 9 and the set motion, a green light is emitted when the specified accuracy is reached, a yellow light is emitted when there is a certain error, and a red light is emitted when the equipment system malfunctions.

[0044] The above is a detailed description of the preferred embodiments of the present utility model. However, the present utility model is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A sensor functionality testing device, characterized in that: The device includes a base housing and an upper housing. The base housing is equipped with a rotary motion testing component, a linear motion testing component, and two chuck frame assemblies. The two chuck frame assemblies are respectively positioned corresponding to the rotary motion testing component and the linear motion testing component. The rotary motion testing component drives the detection block to rotate, and the linear motion testing component drives the detection block to perform linear motion. The chuck frame assemblies are used to clamp the sensor under test. The upper housing is equipped with a speed and torque display and a touch screen. The speed and torque display is electrically connected to the rotary motion testing component and is used to display the rotational speed of the detection block. The touch screen is electrically connected to the sensor under test and is used to display the detection data of the sensor under test.

2. The sensor functionality testing device according to claim 1, characterized in that: The chuck frame assembly includes a base, a clamp, a vertical adjustment component, and a horizontal adjustment component. The clamp is mounted on the movable end of the horizontal adjustment component, and the horizontal adjustment component is mounted on the movable end of the vertical adjustment component. The vertical adjustment component is mounted on the base housing via the base, and the clamp is used to hold the sensor under test.

3. The sensor functionality testing device according to claim 2, characterized in that: The clamp includes a chuck seat, a guide shaft disposed on the chuck seat, a clamping plate slidably connected to the guide shaft, and a fine-tuning component for driving the clamping plate to move. A clamping space is formed between the clamping plate and the base plate of the chuck seat. When the sensor to be tested is placed in the clamping space, the fine-tuning component drives the clamping plate to move toward the sensor to be tested in order to clamp the sensor to be tested.

4. The sensor functionality testing device according to claim 3, characterized in that: The fine-tuning component includes a screw that is rotatably mounted on the chuck seat. The screw passes through the clamp plate and is threadedly connected to the clamp plate. One end of the screw is connected to a fine-tuning handwheel.

5. The sensor functionality testing device according to claim 3, characterized in that: Rubber pads are provided on the side of the clamping plate and the bottom plate of the clamping seat that are opposite to each other.

6. The sensor functionality testing device according to claim 3, characterized in that: The vertical adjustment component includes a vertical adjustment shaft and a clamping block. The bottom end of the vertical adjustment shaft is fixedly connected to the base. The clamping block is provided with a first adjustment hole and a first locking handle. The vertical adjustment shaft is slidably connected in the first adjustment hole. The first locking handle is used to lock or unlock the vertical adjustment shaft and the clamping block.

7. The sensor functionality testing device according to claim 6, characterized in that: The horizontal adjustment component includes a horizontal adjustment shaft, and the clamping block is provided with a second adjustment hole and a second locking handle. The horizontal adjustment shaft is slidably connected in the second adjustment hole, and the second locking handle is used to lock or unlock the horizontal adjustment shaft and the clamping block. The end of the horizontal adjustment shaft is fixedly connected to the chuck seat.

8. The sensor functionality testing device according to claim 1, characterized in that: The rotary motion testing assembly includes a mounting base, a motor, a mounting shaft, and an encoder. The mounting shaft is rotatably connected to the mounting base, and the encoder is connected to the end of the mounting shaft away from the motor. A detection block is mounted on the mounting shaft. The main shaft of the motor is connected to one end of the mounting shaft to drive the mounting shaft to rotate, thereby driving the detection block to rotate. When the detection block rotates, it is used to change the distance between the sensor under test and the detection block. The detection block includes a connecting part, a fixing part, and a detection part. The connecting part and the fixing part are detachably connected. The connecting part has a first semi-circular groove on the side near the fixing part, and the fixing part has a second semi-circular groove on the side near the connecting part. When the connecting part and the fixing part are connected as one unit, the first semi-circular groove and the second semi-circular groove form a mounting hole. The mounting hole is fitted onto the mounting shaft. The detection part is integrally formed on the side of the connecting part away from the fixing part. The side of the detection part away from the connecting part is an arc surface, and the center of the arc surface is a distance away from the center of the mounting hole. When the detection block rotates with the mounting shaft, the movement trajectory of the arc surface of the detection part forms an irregular movement trajectory based on the axis of the mounting shaft.

9. The sensor functionality testing device according to claim 1, characterized in that: The linear motion testing assembly includes a first linear module and a second linear module, wherein the length of the second linear module is greater than the length of the first linear module, and a detection block is installed at the output end of the first linear module or the second linear module.

10. A sensor functionality testing device according to claim 1, characterized in that: The upper housing is equipped with a three-color alarm light, which is electrically connected to the touch screen.

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