Motor testing equipment

Abstract

The present invention discloses a motor testing device, which includes a base, an intermediate carrier, a radial thrust mechanism, a torque sensor, a first pressure detection component, an accelerometer and a displacement sensor. Through the audio acquisition component, continuous noise detection can be carried out during the testing process. The shock absorber and at least two clamping components can realize the switching of the intermediate carrier between flexible connection and rigid connection to meet the testing conditions under different working conditions. The radial thrust mechanism can apply a radial thrust to the rotating shaft of the target product, and cooperate with the second pressure detection component to realize the testing of the radial force working condition. The slide table driving mechanism can drive the second slide table to move relative to the first slide table, apply an axial force to the target product through the torque sensor, and cooperate with the first pressure detection component to realize the testing of the axial force working condition. During the testing process, data can be collected through the torque sensor, photoelectric sensor, accelerometer and displacement sensor. It has a high degree of integration and can continuously test multiple functions of the motor.

Description

Technical Field

[0001] The present invention relates to the technical field of automated testing, and particularly to a motor testing device. Background Art

[0002] A motor (also known as a motor) is a common power device. With the development of technology, the application of small motors is becoming more and more widespread, and they are commonly found in household appliances and 3C products, etc. In order to ensure the production quality of motors, quality tests need to be carried out before leaving the factory. However, the testing devices of related technologies can perform fewer test items, have low integration, and the working conditions simulated between different test items are different. If multiple tests are to be carried out, multiple different devices need to be used for collaborative testing, and it takes time for the target product to be transferred between different devices, making it difficult to perform continuous tests on multiple functions of the motor. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. For this purpose, the present invention provides a motor testing device with high integration, which can perform continuous tests on multiple functions of the motor.

[0004] An embodiment of the present invention provides a motor testing device, including

[0005] a base, which is installed with a first slide rail, a pushing component, and a first pressure detection component;

[0006] a first slide table component, including a first slide table, an intermediate carrier table, a positioning carrier table, and a radial thrust mechanism. The first slide table is slidably installed on the first slide rail and is in active contact with the pushing component. The intermediate carrier table includes a bottom plate, a carrier plate, a shock absorber, and at least two clamping components. The bottom plate is connected to the first slide table, the shock absorber is connected between the bottom plate and the carrier plate, the at least two clamping components are installed on the bottom plate and are in active contact with the side of the carrier plate. The positioning carrier table is installed on the carrier plate and is used to carry the target product. The first slide table component or the target product is in active contact with the first pressure detection component. An audio acquisition component, an accelerometer, and a displacement sensor are arranged on the periphery of the positioning carrier table. The radial thrust mechanism is located adjacent to the positioning carrier table and is connected with a second pressure detection component;

[0007] a second slide table component, including a second slide table, and a torque sensor, a hysteresis brake, a code disk, and a photoelectric sensor installed on the second slide table. The second slide table is slidably installed on the first slide rail and is connected with a slide table driving mechanism. The first end of the torque sensor is in active connection with the rotating shaft of the target product, the second end of the torque sensor is connected with the hysteresis brake and the code disk, and the detection end of the photoelectric sensor faces the code disk.

[0008] According to some embodiments of the present invention, a first wedge surface is provided at the abutting end of the clamping member, a second wedge surface is provided at the side portion of the carrier plate, and the first wedge surface and the second wedge surface are in movable abutment.

[0009] According to some embodiments of the present invention, the abutting direction of the clamping member is from the side portion of the carrier plate towards the center of the carrier plate.

[0010] According to some embodiments of the present invention, the positioning stage includes a positioning block, a first clamping block, and a second clamping block. A positioning cavity is provided in the middle of the positioning block, avoidance positions are provided on opposite sides of the positioning block, and the first clamping block and the second clamping block are movably installed in the avoidance positions and are connected to a double-acting cylinder.

[0011] According to some embodiments of the present invention, the double-acting cylinder is installed at the bottom of the positioning block and is connected to the carrier plate.

[0012] According to some embodiments of the present invention, the radial thrust mechanism includes a push block and a first lifting driving member. The push block is connected to the first lifting driving member, an elastic member is connected between the push block and the first lifting driving member, and the push block is in movable abutment with the second pressure detection assembly.

[0013] According to some embodiments of the present invention, a first rolling member and a second rolling member are provided on the push block, and a clamping gap adapted to the rotating shaft of the target product is formed between the first rolling member and the second rolling member.

[0014] According to some embodiments of the present invention, the hysteresis brake is connected to a third slide table and is in movable connection with the torque sensor.

[0015] According to some embodiments of the present invention, the accelerometer is connected to a lifting and rotating mechanism. The lifting and rotating mechanism is connected to the base. The lifting and rotating mechanism is used to drive the accelerometer to switch between a first working position and a second working position. The accelerometer abuts against the target product in the first working position, and the second working position of the accelerometer is located above the adjacent side of the positioning stage.

[0016] According to some embodiments of the present invention, the displacement sensor is connected to a second lifting driving member, and the second lifting driving member is located above the positioning stage.

[0017] The embodiments of the present invention have at least the following beneficial effects:

[0018] The audio acquisition component can perform continuous noise detection during the test process. The shock absorber and at least two clamping components can enable the intermediate stage to switch between flexible connection and rigid connection, meeting the test conditions under different working conditions. The radial thrust mechanism can apply radial thrust to the rotating shaft of the target product, and cooperate with the second pressure detection component to achieve the test of the radial force working condition. The slide drive mechanism can drive the second slide to move relative to the first slide, apply axial force to the target product through the torque sensor, and cooperate with the first pressure detection component to achieve the test of the axial force working condition. During the test process, data can be collected through the torque sensor, photoelectric sensor, accelerometer, and displacement sensor. It has a high degree of integration and can continuously test multiple functions of the motor.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] Figure 1 is one of the schematic structural diagrams of the motor test equipment according to an embodiment of the present invention;

[0022] Figure 2 is another schematic structural diagram of the motor test equipment according to an embodiment of the present invention;

[0023] Figure 3 is the third schematic structural diagram of the motor test equipment according to an embodiment of the present invention;

[0024] Figure 4 is Figure 1 the schematic structural diagram of the intermediate stage and the positioning stage of the shown motor test equipment;

[0025] Figure 5 is Figure 4 the exploded structural diagram of the intermediate stage and the positioning stage shown;

[0026] Figure 6 is Figure 2 the partial enlarged view of the circled position A in ;

[0027] Reference numerals:

[0028] Base 100, first slide rail 110, pushing component 120, first pressure detection component 130, first slide table 210, second slide table 220, slide table driving mechanism 221, intermediate carrier 300, bottom plate 310, carrier plate 320, second wedge surface 321, shock absorber 330, clamping component 340, first wedge surface 341, positioning carrier 400, positioning block 410, positioning cavity 411, avoidance position 412, first clamping block 420, second clamping block 430, double-acting cylinder 440, radial thrust mechanism 500, pushing block 510, elastic member 511, first rolling member 512, second rolling member 513, first lifting driving member 520, second pressure detection component 530, audio acquisition component 610, accelerometer 620, lifting and rotating mechanism 621, displacement sensor 630, second lifting driving member 631, torque sensor 700, hysteresis brake 710, third slide table 711, code disk 720, photoelectric sensor 730. Detailed implementation mode

[0029] The embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention and should not be construed as limiting the present invention.

[0030] In the description of the present invention, it should be understood that with respect to the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

[0031] In the description of the present invention, the meaning of "several" is one or more, the meaning of "multiple" is two or more, greater than, less than, exceeding, etc. are understood as not including the present number, and "above", "below", "within", etc. are understood as including the present number. If there is a description of "first", "second", etc., it is only for the purpose of distinguishing technical features and should not be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0032] In the description of the present invention, unless otherwise clearly defined, words such as "set", "installed", "connected", etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0033] Please refer to Figure 1 、 Figure 2 and Figure 3, this embodiment discloses a motor testing device, including a base 100, a first sliding table assembly, and a second sliding table assembly. A first slide rail 110, a pushing assembly 120, and a first pressure detection assembly 130 are installed on the base 100. The first sliding table assembly includes a first sliding table 210, an intermediate carrier 300, a positioning carrier 400, and a radial thrust mechanism 500. The first sliding table 210 is slidably installed at the first end of the first slide rail 110 and is in movable abutment with the pushing assembly 120. The intermediate carrier 300 and the radial thrust mechanism 500 are installed on the first sliding table 210. The intermediate carrier 300 includes a bottom plate 310, a carrier plate 320, a shock absorber 330, and at least two clamping members 340. The bottom plate 310 is connected to the first sliding table 210. The shock absorber 330 is connected between the bottom plate 310 and the carrier plate 320. The shock absorber 330 can adopt structures such as urethane rubber, shock-absorbing silica gel, or shock-absorbing springs. The clamping member 340 is a structure driven by a cylinder. At least two clamping members 340 are installed on the bottom plate 310 and are distributed on opposite sides of the carrier plate 320 and are in movable abutment with the side of the carrier plate 320. The positioning carrier 400 is installed on the carrier plate 320. The positioning carrier 400 is used to carry the target product. The first sliding table assembly or the target product is in movable abutment with the first pressure detection assembly 130. For example, one of the first sliding table 210, the intermediate carrier 300, the positioning carrier 400, and the target product is in movable abutment with the first pressure detection assembly 130. An audio acquisition component 610, an accelerometer 620, and a displacement sensor 630 are arranged on the periphery of the positioning carrier 400. The audio acquisition component 610 adopts a microphone. The accelerometer 620 is in movable abutment with the target product. The displacement sensor 630 is in movable abutment with the rotating shaft of the target product. The radial thrust mechanism 500 is located adjacent to the positioning carrier 400. The radial thrust mechanism 500 is connected to a second pressure detection component 530. The radial thrust mechanism 500 is used to apply a radial thrust to the rotating shaft of the target product. The second sliding table assembly includes a second sliding table 220, and a torque sensor 700, a hysteresis brake 710, a code disk 720, and a photoelectric sensor 730 installed on the second sliding table 220. The second sliding table 220 is slidably installed at the second end of the first slide rail 110 and is connected to a slide table drive mechanism 221. The slide table drive mechanism 221 adopts a combination of a lead screw and a motor. The first end of the torque sensor 700 is movably connected to the rotating shaft of the target product. The second end of the torque sensor 700 is connected to the hysteresis brake 710 and the code disk 720. The photoelectric sensor 730 is located adjacent to the code disk 720, and the detection end of the photoelectric sensor 730 faces the code disk 720.

[0034] In this embodiment, a small motor is used as the target product. Since the size of the small motor is small, correspondingly, the volume of the motor testing equipment in this embodiment is also small. To meet the requirements of miniaturized design, the structural arrangement among the various components of the motor testing equipment is compact. For example, the intermediate stage 300, the positioning stage 400, and the radial thrust mechanism 500 are all arranged on the first slide 210, the torque sensor 700, the hysteresis brake 710, the code disk 720, and the photoelectric sensor 730 are all arranged on the second slide 220, while the pushing assembly 120, the audio acquisition assembly 610, the accelerometer 620, and the displacement sensor 630 are distributed around the first slide assembly. A modular structural layout is adopted, with a clear and compact layout, high integration, and convenience for debugging and maintenance.

[0035] The test items of the small motor include no-load test, loaded test, radial force test, and axial force test. Among them, to improve the accuracy of the test, some items of the no-load test need to minimize the interference of external environmental factors (such as vibration), while the remaining test items will apply a certain force to the target product during the test, requiring the target product to be placed stably. Based on this, an intermediate stage 300 is added between the first slide 210 and the positioning stage 400 in this embodiment. The intermediate stage 300 has two working states: flexible connection and rigid connection, and can be freely switched according to the requirements of the test items during the test. For example, when the clamping member 340 does not abut against the carrier plate 320, the carrier plate 320 is connected to the bottom plate 310 through the shock-absorbing member 330. Since the shock-absorbing member 330 has a shock-absorbing effect, it can isolate the vibration of the external environment, thereby improving the accuracy of the test; when the clamping member 340 abuts against the side of the carrier plate 320, a rigid connection relationship is formed among the carrier plate 320, the clamping member 340, and the bottom plate 310, making the connection between the carrier plate 320 and the bottom plate 310 reliable, thereby improving the placement stability of the target product. It is worth mentioning that the clamping member 340 abuts against and clamps the side of the carrier plate 320, which can clamp the carrier plate 320 while avoiding the continuous pressure exerted by the carrier plate 320 on the shock-absorbing member 330, reducing the fatigue degree of the shock-absorbing member 330, and being beneficial to improving the durability and shock-absorbing reliability of the shock-absorbing member 330. Among them, the number of the clamping members 340 can be determined according to the actual application situation, such as two or four, etc. Every two clamping members 340 form a group and abut against each other from the opposite sides of the carrier plate 320.

[0036] In use, the target product is placed on the positioning stage 400. At this time, the pushing component 120 abuts against the first sliding table 210, so that the first pressure detection component 130 is in a non-abutting state, the clamping member 340 does not clamp the carrier plate 320, the intermediate stage 300 is in a flexible connection state, and the radial thrust mechanism 500 does not abut against the rotating shaft of the target product. When starting the test, an excitation signal is provided to the target product, so that the target product rotates forward or backward in a free state. The noise signal during the test is collected by the audio acquisition component 610, and the accelerometer 620 is abutted against the target product to detect the vibration of the target product by the accelerometer 620. It should be noted that in order to improve the accuracy of detection, the motor test equipment further includes a sound insulation box, and the base 100 and the structures thereon (such as the first sliding table 210 and the second sliding table 220, etc.) are all installed in the sound insulation box, so as to reduce the interference of environmental noise. Then, the clamping member 340 abuts against the carrier plate 320, so that the intermediate stage 300 changes from the flexible connection state to the rigid connection state. The sliding table driving mechanism 221 drives the second sliding table 220 to move towards the first sliding table 210, so that the torque sensor 700 is connected to the rotating shaft of the target product, and thus the torque of the target product is detected by the torque sensor 700. At this time, the hysteresis brake 710 provides a zero load. The torque sensor 700 drives the code disk 720 to rotate during rotation, and the rotation speed of the code disk 720 is detected by the photoelectric sensor 730, so as to measure the rotation speed of the target product at intervals.

[0037] Then, a load addition test is carried out. The hysteresis brake 710 provides a preset load, and torque detection and rotation speed detection are respectively carried out by the torque sensor 700 and the photoelectric sensor 730. Then, the clamping member 340 disengages from the carrier plate 320, so that the intermediate stage 300 changes from the rigid connection state to the flexible connection state, and the vibration of the target product is detected by the accelerometer 620.

[0038] Then, a radial force test is carried out. The clamping member 340 abuts against the carrier plate 320, so that the intermediate stage 300 enters the rigid connection state. The hysteresis brake 710 provides a zero load, and the radial thrust mechanism 500 applies a preset thrust to the rotating shaft of the target product. The second pressure detection component 530 is used to monitor the thrust applied by the radial thrust mechanism 500. Among them, both the first pressure detection component 130 and the second pressure detection component 530 adopt pressure sensors. Torque detection and rotation speed detection are respectively carried out by the torque sensor 700 and the photoelectric sensor 730. Then, the displacement sensor 630 is abutted against the rotating shaft of the target product, so as to detect the shaft yaw of the target product.

[0039] Finally, an axial force test is carried out. The pushing component 120 retracts to disengage from the first sliding table 210. The sliding table driving mechanism 221 drives the second sliding table 220 to move towards the direction close to the first sliding table 210, so as to apply an axial thrust to the target product through the torque sensor 700, thereby driving the first sliding table 210 to move. According to the different installation heights of the first pressure detection component 130, one of the first sliding table 210, the intermediate stage 300, the positioning stage 400 and the target product is movably abutted against the first pressure detection component 130. For example, if the installation height of the first pressure detection component 130 is adapted to the first sliding table 210, the first sliding table 210 can abut against the first pressure detection component 130 during the movement process, so as to monitor the axial thrust received by the target product in real time according to the first pressure detection component 130; Another example is that if the installation height of the first pressure detection component 130 is adapted to the target product, during the movement of the first sliding table 210, the target product moves synchronously with the first sliding table 210, so as to abut against the first pressure detection component 130. When the target product receives a preset axial thrust, torque detection and rotational speed detection are respectively carried out through the torque sensor 700 and the photoelectric sensor 730, and then the displacement sensor 630 is abutted against the rotating shaft of the target product, so as to carry out shaft yaw detection on the target product.

[0040] After all the test items are completed, the sliding table driving mechanism 221 drives the second sliding table 220 to reset, so that the torque sensor 700 is separated from the rotating shaft of the target product. The pushing component 120 abuts against the first sliding table 210 to push the first sliding table 210 to the initial position, so as to disengage from the first pressure detection component 130.

[0041] In this way, the audio acquisition component 610 can continuously detect the noise during the test process. The shock absorber 330 and at least two clamping components 340 can realize the switching of the intermediate stage 300 between flexible connection and rigid connection, meet the test conditions under different working conditions. The radial thrust mechanism 500 can apply a radial thrust to the rotating shaft of the target product, and cooperate with the second pressure detection component 530 to realize the radial force working condition test. The sliding table driving mechanism 221 can drive the second sliding table 220 to move relative to the first sliding table 210, apply an axial force to the target product through the torque sensor 700, and cooperate with the first pressure detection component 130 to realize the axial force working condition test. During the test process, data can be collected through the torque sensor 700, the photoelectric sensor 730, the accelerometer 620 and the displacement sensor 630. The integration degree is high, and continuous tests of multiple functions of the motor can be carried out.

[0042] Please refer to Figure 4 and Figure 5, a first wedge surface 341 is provided at the abutting end of the clamping member 340, and a second wedge surface 321 is provided at the side of the carrier plate 320. The first wedge surface 341 and the second wedge surface 321 are in movable abutment. During the test, the target product continuously generates vibrations, and the vibrations are transmitted to the carrier plate 320 through the positioning stage 400, causing a tendency of relative movement between the carrier plate 320 and the clamping member 340. The first wedge surface 341 abuts against the second wedge surface 321, which can limit the movement of the carrier plate 320 in the longitudinal and horizontal directions, thereby improving the connection reliability between the carrier plate 320 and the clamping member 340. Moreover, compared with machining mating structures such as positioning holes and positioning grooves on the carrier plate 320, the design of the second wedge surface 321 can avoid the existence of gaps between the clamping member 340 and the carrier plate 320 caused by machining errors, resulting in unstable abutment.

[0043] It should be noted that the abutting direction of the clamping member 340 is from the side of the carrier plate 320 towards the center of the carrier plate 320, that is, the clamping member 340 exerts a horizontal direction (refer to Figure 5 the left - right direction shown) abutting force on the side of the carrier plate 320, thereby clamping the carrier plate 320 and preventing the carrier plate 320 from continuously applying pressure to the shock - absorbing member 330 in the rigid connection state. Otherwise, the shock - absorbing member 330 is prone to fatigue and the shock - absorbing effect is reduced.

[0044] Please continue to refer to Figure 4 and Figure 5 , the positioning stage 400 includes a positioning block 410, a first clamping block 420, and a second clamping block 430. A positioning cavity 411 is provided in the middle of the positioning block 410 for placing the target product. Avoidance positions 412 are provided on opposite sides of the positioning block 410. The first clamping block 420 and the second clamping block 430 are movably installed in the avoidance positions 412 and are connected to a double - acting cylinder 440. The double - acting cylinder 440 is used to drive the first clamping block 420 and the second clamping block 430 to move towards or away from each other, thereby clamping or releasing the target product. Among them, by providing the avoidance positions 412 on the positioning block 410, the relative height of the first clamping block 420 and the second clamping block 430 can be reduced, which is beneficial to realizing miniaturized design. By using the double - acting cylinder 440 to drive the first clamping block 420 and the second clamping block 430, not only can the number of cylinders be saved to meet the requirements of miniaturized design, but also the pressure applied to the carrier plate 320 can be reduced, improving the shock - absorbing effect of the intermediate stage 300 to a certain extent, and improving the action synchronization performance of the first clamping block 420 and the second clamping block 430, enabling the target product to be maintained at a preset central position.

[0045] Among them, the two-way cylinder 440 is installed at the bottom of the positioning block 410 and connected to the carrier plate 320. The two-way cylinder 440 is arranged between the positioning block 410 and the carrier plate 320, which can not only support the positioning block 410 through the two-way cylinder 440, but also keep the centers of gravity of the two-way cylinder 440 and the positioning block 410 on the same or similar longitudinal straight line, which is beneficial to ensuring the uniform force on the carrier plate 320 at each position, avoiding excessive force on one side, and is beneficial to improving the shock absorption effect.

[0046] Please refer to Figure 2 and Figure 6 , the radial thrust mechanism 500 includes a push block 510 and a first lifting drive member 520. The first lifting drive member 520 adopts a cylinder-driven structure. The push block 510 is connected to the first lifting drive member 520. An elastic member 511 is connected between the push block 510 and the first lifting drive member 520. The push block 510 is movably abutted against the second pressure detection assembly 530. For example, the push block 510 is located below the adjacent side of the positioning stage 400. The push block 510 is driven by the first lifting drive member 520 to abut against the rotating shaft of the target product from bottom to top. During the abutting process, the push block 510 compresses the elastic member 511 to achieve flexible contact with the rotating shaft of the target product and prevent hard contact from damaging the target product. At the same time, the push block 510 abuts against the second pressure detection assembly 530 to monitor the radial thrust applied to the target product in real time through the second pressure detection assembly 530.

[0047] Please refer to Figure 6 , the push block 510 is provided with a first rolling member 512 and a second rolling member 513. A clamping gap adapted to the rotating shaft of the target product is formed between the first rolling member 512 and the second rolling member 513. During the upward movement of the push block 510, when the first rolling member 512 and the second rolling member 513 abut against the rotating shaft of the target product, the first rolling member 512 and the second rolling member 513 rotate towards each other to clamp the rotating shaft of the target product into the clamping gap. During this process, static friction is transformed into rolling friction, reducing damage to the target product. Moreover, the rotating shaft of the target product is located in the clamping gap, which can maintain good contact between the push block 510 and the target product and is beneficial to improving the reliability of the test.

[0048] In some application examples, the hysteresis brake 710 can be selected as a current-controlled brake, that is, by controlling the input current of the hysteresis brake 710, the output load of the hysteresis brake 710 can be controlled. When the input current of the hysteresis brake 710 is zero, the output load of the hysteresis brake 710 is zero. And in some other application examples, please refer to Figure 3, the hysteresis brake 710 is connected to a third slide 711 and is movably connected to the torque sensor 700. When zero load needs to be applied to the target product, the hysteresis brake 710 is separated from the torque sensor 700. When a preset load needs to be applied to the target product, the third slide 711 drives the hysteresis brake 710 to move towards the torque sensor 700, so that the hysteresis brake 710 is connected to the torque sensor 700, thereby providing a preset load to the target product through the hysteresis brake 710.

[0049] Please continue to refer to Figure 3 , the accelerometer 620 is connected to a lifting and rotating mechanism 621. The lifting and rotating mechanism 621 adopts a cylinder-driven structure. The lifting and rotating mechanism 621 is connected to the base 100. The lifting and rotating mechanism 621 is used to drive the accelerometer 620 to switch between a first working position and a second working position. The accelerometer 620 abuts against the target product at the first working position. The second working position of the accelerometer 620 is located above the adjacent side of the positioning stage 400, and can avoid the placement trajectory of the target product. In some other application examples, the lifting and rotating mechanism 621 is installed above the positioning stage 400. For example, the motor test equipment further includes a sound insulation box. The base 100 and the structures thereon (such as the first slide 210, the second slide 220, and the positioning stage 400, etc.) are all installed in the sound insulation box. The lifting and rotating mechanism 621 is installed on the top of the sound insulation box and is located above the positioning stage 400.

[0050] Please continue to refer to Figure 3 , the displacement sensor 630 is connected to a second lifting driving member 631. The second lifting driving member 631 is located above the positioning stage 400. For example, the motor test equipment further includes a sound insulation box. The base 100 and the structures thereon (such as the first slide 210, the second slide 220, and the positioning stage 400, etc.) are all installed in the sound insulation box. The second lifting driving member 631 is installed on the top of the sound insulation box and is located above the positioning stage 400. The second lifting driving member 631 adopts a cylinder-driven structure and is used to drive the displacement sensor 630 to perform a lifting motion.

[0051] The embodiments of the present invention have been described in detail above with reference to the drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the gist of the present invention.

Claims

1. A motor testing device, characterized in that: include: A base (100) is provided with a first slide rail (110), a push assembly (120) and a first pressure detection assembly (130); The first slide assembly comprises a first slide (210), an intermediate platform (300), a positioning platform (400) and a radial thrust mechanism (500); the first slide (210) is slidably mounted on the first slide rail (110) and is movably abutted against the push assembly (120); the intermediate platform (300) comprises a bottom plate (310), a carrier plate (320), a shock absorber (330) and at least two clamping members (340); the bottom plate (310) is connected to the first slide (210); the shock absorber (330) is connected to the bottom plate (310) and the carrier plate (320); The at least two clamping members (340) are mounted on the bottom plate (310) and are movably abutted against the side of the carrier plate (320); the positioning platform (400) is mounted on the carrier plate (320) and is used to carry the target product; the first slide assembly or the target product is movably abutted against the first pressure detection assembly (130); an audio collection assembly (610), an accelerometer (620) and a displacement sensor (630) are arranged on the peripheral side of the positioning platform (400); the radial thrust mechanism (500) is located on the side of the positioning platform (400); The radial thrust mechanism (500) is adjacent to the second pressure detection component (530) and is connected to the second pressure detection component (530). The radial thrust mechanism (500) comprises a push block (510) and a first lifting drive member (520). The push block (510) is connected to the first lifting drive member (520). An elastic member (511) is connected between the push block (510) and the first lifting drive member (520). The push block (510) is movably abutted against the second pressure detection component (530). The push block (510) is provided with a first rolling member (512) and a second rolling member (513). The first rolling member (512) and the second rolling member (513) are A clamping gap adapted to the rotation axis of the target product is formed between the second rolling elements (513); the accelerometer (620) is connected to a lifting and rotating mechanism (621); the lifting and rotating mechanism (621) is connected to the base (100); the lifting and rotating mechanism (621) is used to drive the accelerometer (620) to switch between a first working position and a second working position; the accelerometer (620) abuts against the target product at the first working position; and the second working position of the accelerometer (620) is located above the adjacent side of the positioning platform (400); A second slide assembly comprises a second slide (220) and a torque sensor (700), a hysteresis brake (710), a code disc (720) and a photoelectric sensor (730) mounted on the second slide (220); the second slide (220) is slidably mounted on the first slide rail (110) and is connected to a slide drive mechanism (221); a first end of the torque sensor (700) is movably connected to a rotating shaft of the target product; a second end of the torque sensor (700) is connected to the hysteresis brake (710) and the code disc (720); and a detection end of the photoelectric sensor (730) faces the code disc (720).

2. The motor testing device according to claim 1, characterized in that: The abutting end of the clamping member (340) is provided with a first wedge-shaped surface (341), and the side of the carrier plate (320) is provided with a second wedge-shaped surface (321), and the first wedge-shaped surface (341) and the second wedge-shaped surface (321) are movably abutted.

3. The motor testing device according to claim 1 or 2, characterized in that: The abutment direction of the clamping member (340) is from the side of the carrier plate (320) towards the center of the carrier plate (320).

4. The motor testing device according to claim 1, characterized in that: The positioning platform (400) comprises a positioning block (410), a first clamping block (420) and a second clamping block (430); a positioning cavity (411) is provided in the middle of the positioning block (410); avoidance positions (412) are provided on opposite sides of the positioning block (410); the first clamping block (420) and the second clamping block (430) are movably mounted on the avoidance positions (412) and are connected to a bidirectional cylinder (440).

5. The motor testing device according to claim 4, characterized in that: The bidirectional cylinder (440) is installed at the bottom of the positioning block (410) and is connected to the carrier plate (320).

6. The motor testing device according to claim 1, characterized in that: The hysteresis brake (710) is connected to a third slide (711) and is movably connected to the torque sensor (700).

7. The motor testing device according to claim 1, characterized in that: The displacement sensor (630) is connected to a second lifting drive component (631), and the second lifting drive component (631) is located above the positioning platform (400).

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