Motor testing equipment

Abstract

The invention discloses motor testing equipment which comprises a base, a middle carrying table, a radial thrust mechanism, a torque sensor, a first pressure detection assembly, an accelerometer and a displacement sensor. The damping member and the at least two clamping members can realize switching between flexible connection and rigid connection of the intermediate platform deck, test conditions under different working conditions are satisfied, the radial thrust mechanism can apply radial thrust to a rotating shaft of a target product, and the radial thrust mechanism cooperates with the second pressure detection assembly to realize a radial stress working condition test. The sliding table driving mechanism can drive the second sliding table to move relative to the first sliding table, axial force is applied to a target product through the torque sensor, axial stress working condition testing is achieved in cooperation with the first pressure detection assembly, and data collection can be conducted through the torque sensor, the photoelectric sensor, the accelerometer and the displacement sensor in the testing process. The integrated level is high, and multiple functions of the motor can be continuously tested.

Description

Technical Field

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

[0002] Electric motors (also known as motors) are common power equipment. With the development of technology, small electric motors are used more and more widely, and are commonly found in household appliances and 3C products. In order to ensure the production quality of electric motors, quality tests need to be carried out before they leave the factory. However, the test equipment of related technologies can perform fewer test items, the integration is not high, and the simulated working conditions of different test items are different. If multiple tests are to be carried out, multiple different devices are required to carry out collaborative testing. It takes time to transfer the target product between different devices, and it is difficult to continuously test 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. To this end, the present invention provides a motor testing device with high integration and capable of continuously testing multiple functions of the motor.

[0004] An embodiment of the present invention provides a motor testing device, comprising: A base is provided with a first slide rail, a push assembly and a first pressure detection assembly; The first slide assembly comprises a first slide, an intermediate platform, a positioning platform and a radial thrust mechanism, wherein the first slide is slidably mounted on the first slide rail and movably abuts against the push assembly, the intermediate platform comprises a bottom plate, a carrier plate, a shock absorber and at least two clamping members, the bottom plate is connected to the first slide, the shock absorber is connected between the bottom plate and the carrier plate, the at least two clamping members are mounted on the bottom plate and movably abut against the side of the carrier plate, the positioning platform is mounted on the carrier plate and is used to carry a target product, the first slide assembly or the target product movably abuts against the first pressure detection assembly, an audio collection assembly, an accelerometer and a displacement sensor are arranged on the peripheral side of the positioning platform, and the radial thrust mechanism is located on the adjacent side of the positioning platform and is connected to a second pressure detection assembly; The second slide assembly includes a second slide and a torque sensor, a hysteresis brake, a code disk and a photoelectric sensor installed on the second slide. The second slide is slidably installed on the first slide rail and is connected to a slide drive mechanism. The first end of the torque sensor is movably connected to the rotating shaft of the target product, the second end of the torque sensor is connected to the hysteresis brake and the code disk, and the detection end of the photoelectric sensor faces the code disk.

[0005] According to some embodiments of the present invention, a first wedge-shaped surface is provided at the abutting end of the clamping member, a second wedge-shaped surface is provided at the side of the carrier plate, and the first wedge-shaped surface and the second wedge-shaped surface are movably abutted.

[0006] According to some embodiments of the present invention, the abutting direction of the clamping member is from the side of the carrier plate to the center of the carrier plate.

[0007] According to some embodiments of the present invention, the positioning platform 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, the first clamping block and the second clamping block are movably installed in the avoidance positions and are connected to a bidirectional cylinder.

[0008] According to some embodiments of the present invention, the bidirectional cylinder is installed at the bottom of the positioning block and connected to the carrier plate.

[0009] According to some embodiments of the present invention, the radial thrust mechanism includes a push block and a first lifting drive member, the push block is connected to the first lifting drive member, an elastic member is connected between the push block and the first lifting drive member, and the push block movably abuts against the second pressure detection component.

[0010] According to some embodiments of the present invention, a first rolling member and a second rolling member are disposed 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.

[0011] According to some embodiments of the present invention, the hysteresis brake is connected to a third slide and is movably connected to the torque sensor.

[0012] According to some embodiments of the present invention, the accelerometer is connected to a lifting and rotating mechanism, which 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 platform.

[0013] According to some embodiments of the present invention, the displacement sensor is connected to a second lifting drive member, and the second lifting drive member is located above the positioning platform.

[0014] The embodiments of the present invention have at least the following beneficial effects: The audio acquisition component can be used to continuously detect noise during the test process. The shock absorber and at least two clamping parts can realize the switching of the intermediate platform between flexible connection and rigid connection to meet 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 realize radial force condition test. The slide drive mechanism can drive the second slide to move relative to the first slide, and apply axial force to the target product through the torque sensor, and cooperate with the first pressure detection component to realize axial force condition test. During the test, data can be collected through torque sensors, photoelectric sensors, accelerometers and displacement sensors. It has high integration and can perform continuous tests on multiple functions of the motor.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which: Figure 1 This is one of the structural schematic diagrams of the motor testing equipment according to an embodiment of the present invention; Figure 2 This is a second structural schematic diagram of the motor testing equipment according to an embodiment of the present invention; Figure 3 This is a third structural schematic diagram of the motor testing equipment according to an embodiment of the present invention; Figure 4 for Figure 1 The schematic diagram of the structure of the intermediate platform and the positioning platform of the motor testing equipment shown; Figure 5 for Figure 4 The exploded structure diagram of the intermediate platform and the positioning platform is shown; Figure 6 for Figure 2 The middle circle shows a partial enlarged view of position A.

[0017] Reference numerals: Base 100, first slide rail 110, push assembly 120, first pressure detection assembly 130, first slide 210, second slide 220, slide drive mechanism 221, intermediate carrier 300, bottom plate 310, carrier plate 320, second wedge surface 321, shock absorber 330, clamping member 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, two-way Cylinder 440, radial thrust mechanism 500, push block 510, elastic member 511, first rolling member 512, second rolling member 513, first lifting drive member 520, second pressure detection component 530, audio collection component 610, accelerometer 620, lifting and rotating mechanism 621, displacement sensor 630, second lifting drive member 631, torque sensor 700, hysteresis brake 710, third slide 711, code disk 720, photoelectric sensor 730. DETAILED DESCRIPTION

[0018] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0019] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 understood as a limitation on the present invention.

[0020] In the description of the present invention, "several" means one or more, "multiple" means more than two, greater than, less than, and exceeding are understood as not including the number itself, and "above", "below", and "within" are understood as including the number itself. If there is a description of "first", "second", etc., it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0021] In the description of the present invention, unless otherwise clearly defined, words such as “setting”, “installation” and “connection” should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0022] Please refer to Figure 1 , Figure 2 and Figure 3The present embodiment discloses a motor testing device, including a base 100, a first slide assembly and a second slide assembly. The 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 includes 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 a first end of the first slide rail 110 and is movably abutted against the push assembly 120. The intermediate platform 300 and the radial thrust mechanism 500 are mounted on the first slide 210. The intermediate platform 300 includes a bottom plate 310, a carrier plate 320, and a shock absorber 330. and at least two clamping members 340, the bottom plate 310 is connected to the first slide 210, the shock absorbing member 330 is connected between the bottom plate 310 and the carrier 320, the shock absorbing member 330 can be made of a structure such as PU, shock absorbing silica gel or shock absorbing spring, the clamping member 340 is a cylinder-driven structure, at least two clamping members 340 are installed on the bottom plate 310 and distributed on the opposite sides of the carrier 320 and are movably abutted against the side of the carrier 320, the positioning platform 400 is installed on the carrier 320, the positioning platform 400 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, such as the first slide 210 , the intermediate platform 300, the positioning platform 400 and one of the target products are movably abutted against the first pressure detection component 130, the peripheral side of the positioning platform 400 is provided with an audio collection component 610, an accelerometer 620 and a displacement sensor 630, the audio collection component 610 uses a microphone, the accelerometer 620 is movably abutted against the target product, the displacement sensor 630 is movably abutted against the rotating shaft of the target product, the radial thrust mechanism 500 is located on the adjacent side of the positioning platform 400, the radial thrust mechanism 500 is connected to the second pressure detection component 530, and the radial thrust mechanism 500 is used to apply radial thrust to the rotating shaft of the target product; the second slide The table assembly includes a second slide 220 and a torque sensor 700, a hysteresis brake 710, a code disk 720 and a photoelectric sensor 730 installed on the second slide 220. The second slide 220 is slidably installed on the second end of the first slide rail 110 and is connected to a slide drive mechanism 221. The slide drive mechanism 221 adopts a combination of a screw rod 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 on the adjacent side of the code disk 720, and the detection end of the photoelectric sensor 730 faces the code disk 720.

[0023] This embodiment takes small motors as target products, and the size of small motors is small. Correspondingly, the volume of the motor test equipment of this embodiment is also small. In order to meet the requirements of miniaturization design, the structural arrangement between the various components of the motor test equipment is compact. For example, the intermediate platform 300, the positioning platform 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 disc 720 and the photoelectric sensor 730 are all arranged on the second slide 220, and the push assembly 120, the audio collection assembly 610, the accelerometer 620 and the displacement sensor 630 are distributed around the first slide assembly, adopting a modular structural layout, with a clear and compact layout, high integration and easy debugging and maintenance.

[0024] The test items of small motors include no-load test, load test, radial force test and axial force test. In order to improve the accuracy of the test, some items of no-load test need to reduce the interference of external environmental factors (such as vibration) as much as possible, while the remaining test items will exert a certain force on the target product during the test, requiring the target product to be placed stably. Based on this, the present embodiment adds an intermediate platform 300 between the first slide 210 and the positioning platform 400. The intermediate platform 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 is not in contact with the carrier 320, the carrier 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 is in contact with the side of the carrier 320, the carrier 320, the clamping member 340 and the bottom plate 310 form a rigid connection relationship, so that the connection between the carrier 320 and the bottom plate 310 is reliable, thereby improving the placement stability of the target product. It is worth mentioning that the clamping member 340 abuts against the side of the carrier 320 to clamp the carrier 320, which can prevent the carrier 320 from continuously applying pressure to the shock absorbing member 330 while clamping the carrier 320, reduce the fatigue of the shock absorbing member 330, and help improve the durability and shock absorbing reliability of the shock absorbing member 330. The number of the clamping members 340 may be determined according to actual application conditions, such as two or four, and each two clamping members 340 form a group, and respectively abut against the carrier plate 320 from opposite sides.

[0025] When in use, the target product is placed on the positioning platform 400, and the push assembly 120 abuts against the first slide 210, so that the first pressure detection assembly 130 is in a non-abutment state, the clamping member 340 does not clamp the carrier 320, the intermediate platform 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 the test starts, an excitation signal is provided to the target product, so that the target product rotates forward or reversely in a free state, the noise signal during the test is collected by the audio collection assembly 610, and the accelerometer 620 is abutted against the target product, and the target product is subjected to vibration detection by the accelerometer 620. It should be noted that in order to improve the accuracy of the detection, the motor test equipment also includes a soundproof box, and the base 100 and the structures thereon (such as the first slide 210 and the second slide 220, etc.) are installed in the soundproof box to reduce the interference of environmental noise. Next, the clamping member 340 abuts against the carrier plate 320 to change the intermediate carrier 300 from a flexible connection state to a rigid connection state, and the slide drive mechanism 221 drives the second slide 220 to move in the direction close to the first slide 210, so that the torque sensor 700 is connected to the rotating shaft of the target product, thereby performing torque detection on the target product through the torque sensor 700. At this time, the hysteresis brake 710 provides zero load, and the torque sensor 700 drives the code disk 720 to rotate during the rotation process, and detects the rotation speed of the code disk 720 through the photoelectric sensor 730, thereby measuring the rotation speed of the target product.

[0026] Next, a load test is performed, in which the hysteresis brake 710 provides a preset load, and torque detection and rotational speed detection are performed through the torque sensor 700 and the photoelectric sensor 730 respectively. Then, the clamp 340 is separated from the carrier plate 320 to change the intermediate platform 300 from a rigid connection state to a flexible connection state, and the target product is subjected to vibration detection through the accelerometer 620.

[0027] Then, a radial force test is performed, the clamping member 340 abuts against the carrier plate 320, so that the intermediate carrier 300 enters a rigid connection state, the hysteresis brake 710 provides zero load, and the radial thrust mechanism 500 applies a preset thrust to the rotating shaft of the target product, wherein the second pressure detection component 530 is used to monitor the thrust applied by the radial thrust mechanism 500, wherein the first pressure detection component 130 and the second pressure detection component 530 both use pressure sensors. Torque detection and speed detection are performed respectively by 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 perform shaft runout detection on the target product.

[0028] Finally, an axial force test is performed, and the push assembly 120 retracts to separate from the first slide 210. The slide drive mechanism 221 drives the second slide 220 to move in the direction close to the first slide 210, so as to apply an axial thrust to the target product through the torque sensor 700, thereby driving the first slide 210 to move. According to the different installation heights of the first pressure detection assembly 130, the first slide 210, the intermediate platform 300, the positioning platform 400 and one of the target products are movably abutted against the first pressure detection assembly 130. For example, if the installation height of the first pressure detection assembly 130 is adapted to the first slide 210, the first slide 210 can abut against the first pressure detection assembly 130 during the movement, thereby monitoring the axial thrust of the target product in real time according to the first pressure detection assembly 130; for another example, if the installation height of the first pressure detection assembly 130 is adapted to the target product, during the movement of the first slide 210, the target product moves synchronously with the first slide 210, thereby abutting against the first pressure detection assembly 130. When the target product is subjected to a preset axial thrust, torque detection and rotation speed detection are performed by the torque sensor 700 and the photoelectric sensor 730 respectively, and then the displacement sensor 630 is abutted against the rotating shaft of the target product to perform shaft runout detection on the target product.

[0029] After completing all test items, the slide drive mechanism 221 drives the second slide 220 to reset so that the torque sensor 700 is separated from the rotating shaft of the target product, and the pushing assembly 120 abuts against the first slide 210 to push the first slide 210 to the initial position, thereby disengaging from the first pressure detection assembly 130.

[0030] In this way, the audio collection component 610 can be used to continuously detect noise during the test process. The shock absorber 330 and at least two clamping components 340 can enable the intermediate platform 300 to switch between flexible connection and rigid connection to meet the test conditions under different working conditions. The radial thrust mechanism 500 can apply radial thrust to the rotating shaft of the target product, and cooperate with the second pressure detection component 530 to implement radial force condition testing. The slide drive mechanism 221 can drive the second slide 220 to move relative to the first slide 210, and apply axial force to the target product through the torque sensor 700, and cooperate with the first pressure detection component 130 to implement axial force condition testing. During the test, data collection can be performed through the torque sensor 700, the photoelectric sensor 730, the accelerometer 620 and the displacement sensor 630. It has a high degree of integration and can perform continuous testing of multiple functions of the motor.

[0031] Please refer to Figure 4 and Figure 5, the abutting end of the clamping member 340 is provided with a first wedge surface 341, and the side of the carrier 320 is provided with a second wedge surface 321, and the first wedge surface 341 and the second wedge surface 321 are movably abutted. During the test, the target product will continue to generate vibrations, and the vibrations will be transmitted to the carrier 320 through the positioning platform 400, so that the carrier 320 and the clamping member 340 have a tendency to move relative to each other. The first wedge surface 341 abuts against the second wedge surface 321, which can limit the movement of the carrier 320 in the longitudinal direction and the horizontal direction, thereby improving the connection reliability between the carrier 320 and the clamping member 340. Moreover, compared with machining matching structures such as positioning holes and positioning grooves on the carrier 320, the design of the second wedge surface 321 can avoid the gap between the clamping member 340 and the carrier 320 caused by machining errors, resulting in unstable abutment.

[0032] It is worth noting that the abutment direction of the clamping member 340 is from the side of the carrier 320 to the center of the carrier 320, that is, the clamping member 340 exerts a horizontal force on the side of the carrier 320 (refer to Figure 5 The carrier plate 320 is clamped to prevent the carrier plate 320 from continuously applying pressure to the shock absorbing member 330 in a rigid connection state, otherwise the shock absorbing member 330 is prone to fatigue and the shock absorbing effect is reduced.

[0033] Please continue to refer to Figure 4 and Figure 5 The positioning platform 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. The positioning cavity 411 is used to place the target product. Avoidance positions 412 are provided on the 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 two-way cylinder 440. The two-way cylinder 440 is used to drive the first clamping block 420 and the second clamping block 430 to move toward or away from each other, thereby clamping or releasing the target product. Among them, setting an avoidance position 412 on the positioning block 410 can reduce the relative height of the first clamp block 420 and the second clamp block 430, which is conducive to realizing a miniaturized design. The first clamp block 420 and the second clamp block 430 are driven by the bidirectional cylinder 440, which can not only save the number of cylinders and meet the requirements of miniaturized design, but also reduce the pressure applied to the carrier plate 320, improve the shock absorption effect of the intermediate platform 300 to a certain extent, and improve the movement synchronization performance of the first clamp block 420 and the second clamp block 430, so that the target product can be maintained at the preset center position.

[0034] 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 set between the positioning block 410 and the carrier plate 320. The positioning block 410 can be supported by the two-way cylinder 440, and the center of gravity of the two-way cylinder 440 and the positioning block 410 can be maintained on the same or similar longitudinal straight line, which is beneficial to ensure the uniformity of force on the carrier plate 320 at various positions, avoid excessive force on one side, and help improve the shock absorption effect.

[0035] 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, and the push block 510 is movably abutted against the second pressure detection component 530. For example, the push block 510 is located below the adjacent side of the positioning platform 400, and 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 abutment process, the push block 510 compresses the elastic member 511 to achieve flexible contact with the rotating shaft of the target product to prevent hard contact from causing damage to the target product. At the same time, the push block 510 abuts against the second pressure detection component 530 to monitor the radial thrust applied to the target product in real time through the second pressure detection component 530.

[0036] Please refer to Figure 6 The push block 510 is provided with a first rolling member 512 and a second rolling member 513, and a clamping gap adapted to the rotation axis of the target product is formed between the first rolling member 512 and the second rolling member 513. When the push block 510 moves upward, when the first rolling member 512 and the second rolling member 513 abut against the rotation axis of the target product, the first rolling member 512 and the second rolling member 513 rotate toward each other to clamp the rotation axis of the target product into the clamping gap. In this process, static friction is converted into rolling friction, reducing damage to the target product. Moreover, the rotation axis of the target product is located in the clamping gap, which can maintain good contact between the push block 510 and the target product, which is conducive to improving the reliability of the test.

[0037] In some application examples, the hysteresis brake 710 can be 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. In other application examples, please refer to Figure 3The hysteresis brake 710 is connected to the 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 toward the direction close to the torque sensor 700, so that the hysteresis brake 710 is connected to the torque sensor 700, thereby providing the preset load to the target product through the hysteresis brake 710.

[0038] Please continue to refer to Figure 3 , the accelerometer 620 is connected to a lifting and rotating mechanism 621, which adopts a cylinder-driven structure. The lifting and rotating mechanism 621 is connected to the base 100, and the lifting and rotating mechanism 621 is used to drive the accelerometer 620 to switch between the first working position and the second working position. The accelerometer 620 abuts against the target product in the first working position, and the second working position of the accelerometer 620 is located above the adjacent side of the positioning platform 400, which can avoid the placement track of the target product. In other application examples, the lifting and rotating mechanism 621 is installed above the positioning platform 400. For example, the motor testing equipment also includes a soundproof box, the base 100 and the structures thereon (such as the first slide 210, the second slide 220 and the positioning platform 400, etc.) are all installed in the soundproof box, and the lifting and rotating mechanism 621 is installed on the top of the soundproof box and is located above the positioning platform 400.

[0039] Please continue to refer to Figure 3 The displacement sensor 630 is connected to a second lifting drive 631, and the second lifting drive 631 is located above the positioning platform 400. For example, the motor testing equipment also includes a soundproof box, and the base 100 and the structures thereon (such as the first slide 210, the second slide 220 and the positioning platform 400, etc.) are all installed in the soundproof box. The second lifting drive 631 is installed on the top of the soundproof box and is located above the positioning platform 400. The second lifting drive 631 adopts a cylinder-driven structure, which is used to drive the displacement sensor 630 to perform lifting movements.

[0040] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose 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), wherein 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 between the bottom plate (310) and the carrier plate (320), and the radial thrust mechanism (500) is configured to move the first slide (210) and the first positioning platform (400) ... 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); and the radial thrust mechanism (500) is located on the adjacent side of the positioning platform (400) and is connected to the second pressure detection assembly (530); 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 radial thrust mechanism (500) comprises a push block (510) and a first lifting drive member (520), the push block (510) being connected to the first lifting drive member (520), an elastic member (511) being connected between the push block (510) and the first lifting drive member (520), and the push block (510) being movably abutted against the second pressure detection assembly (530).

7. The motor testing device according to claim 6, characterized in that: The push block (510) is provided with a first rolling member (512) and a second rolling member (513), and 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).

8. 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).

9. The motor testing device according to claim 1, characterized in that: The accelerometer (620) is connected to a lifting and rotating mechanism (621), and 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 in the first working position, and the second working position of the accelerometer (620) is located above the adjacent side of the positioning platform (400).

10. 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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