Motor performance test tool

Abstract

The invention relates to the field of motor performance testing, in particular to a motor performance testing tool which comprises a machine body. The positioning mechanism is arranged at the top of the machine body and comprises a lifting assembly, and the lifting assembly is used for bearing and adjusting the height of the tested motor; the control assembly is used for controlling the lifting assembly; the clamping mechanism is arranged between the lifting assembly and the machine body, the clamping mechanism comprises a clamping assembly, and the clamping assembly is used for clamping and fixing a tested motor; the driving assembly is used for driving the clamping assembly; after the height of the tested motor is adjusted, the unlocking assembly controls the mortise lock assembly to lock the lifting assembly and synchronously controls the driving assembly and the control assembly to form gear transmission connection; through cooperation of the lifting assembly of the positioning mechanism and the control assembly, height adjustment of the tested motor can be automatically completed, and it is ensured that the axis of the tested motor is accurately coaxial with the axes of the hysteresis brake and the torque and rotating speed sensor.

Description

Technical Field

[0001] This invention relates to the field of motor performance testing, and in particular to a motor performance testing fixture. Background Technology

[0002] Currently, the mainstream method for testing motor performance involves horizontal mounting of the motor under test, meaning the motor output shaft is horizontal. The motor is placed on a test bench, and the output shaft, torque and speed sensor, and hysteresis brake are connected sequentially via couplings to complete the power transmission assembly of the test system. However, existing horizontal motor performance testing methods still have certain shortcomings in actual testing: The casing diameters of motors under test vary significantly depending on their specifications. In a horizontal position, this difference in casing diameter directly leads to deviations in the motor shaft height. However, the mounting shaft heights of the hysteresis brake and torque / speed sensor are fixed. Existing technology relies on operating a three-dimensional adjustment bench to adapt and adjust the motor shaft height. The adjustment accuracy is greatly affected by the operator, easily leading to shaft coaxiality deviations. This results in vibration and noise during power transmission, reducing the accuracy of test data for core parameters such as torque and speed, and accelerating the wear of components such as couplings and sensors. Furthermore, the multi-dimensional adjustment structure of the three-dimensional adjustment bench involves cumbersome adjustment steps, with each height adjustment taking a long time. Height adjustment and motor clamping are two independent operation processes. After height adjustment, the clamping mechanism must be operated separately to fix the motor, resulting in a disconnect in the operation process and significantly reducing the efficiency of batch motor testing. Summary of the Invention

[0003] In view of the problem that different motor housing diameters can lead to deviations in the height of the motor shaft in the above-mentioned or existing technologies, while the mounting shaft height of the hysteresis brake and torque-speed sensor is a fixed value, this invention is proposed.

[0004] Therefore, the purpose of this invention is to provide a motor performance testing fixture.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: A motor performance testing fixture, comprising, Organism; A positioning mechanism disposed on the top of the machine body, the positioning mechanism comprising, A lifting assembly, used to support and adjust the height of the motor under test; Control component, the control component being used to control the lifting component; A clamping mechanism is disposed between the lifting assembly and the machine body, the clamping mechanism comprising, A clamping assembly for clamping and fixing the motor under test; A drive component, wherein the drive component is used to drive the clamping component; After the height of the motor under test is adjusted, the locking component controls the locking component to lock the lifting component and simultaneously controls the drive component and control component to form a gear transmission connection.

[0006] As a preferred embodiment of the motor performance testing fixture of the present invention, the lifting assembly includes several guide columns fixedly installed on the top of the machine body, a lifting platform slidably installed on the outer side of the several guide columns, and a reference plate fixedly installed at the end of the guide columns.

[0007] As a preferred embodiment of the motor performance testing fixture of the present invention, the control component includes a lifting rod fixedly installed on the side of the lifting platform near the machine body, a lifting plate fixedly installed at the end of the lifting rod through the machine body, an upper arc block fixedly installed on the lifting plate, an L-shaped frame fixedly installed inside the machine body, a control motor fixedly installed on the L-shaped frame, a circular plate fixedly installed at the output end of the control motor, a control plate rotatably installed on the circular plate, and a lower arc block fixedly installed on the control plate that wedges with the upper arc block.

[0008] As a preferred embodiment of the motor performance testing fixture of the present invention, the clamping assembly includes a plurality of through-grooves formed in the lifting platform, a movable frame is slidably installed in the grooves, a clamping plate is fixedly installed on the movable frame, and a plurality of limiting plates are fixedly installed on the machine body.

[0009] As a preferred embodiment of the motor performance testing fixture of the present invention, the drive assembly includes a rotating plate rotatably mounted on a lifting platform, a bushing fixedly mounted on the rotating plate, a plurality of arc-shaped grooves formed on the rotating plate, a lever fixedly mounted on the movable frame that slides in cooperation with the arc-shaped grooves, a rotating shaft rotatably mounted between the L-shaped frame and the machine body, and the output shaft of the control motor and the bushing are connected by gear transmission under the cooperative control of the unlocking assembly and the locking assembly.

[0010] As a preferred embodiment of the motor performance testing fixture of the present invention, a spring telescopic rod is fixedly installed on the lifting rail, and a locking groove is provided on the disc, wherein the telescopic end of the spring telescopic rod cooperates with the locking groove.

[0011] As a preferred embodiment of the motor performance testing fixture of the present invention, the locking assembly includes a fixed frame fixedly installed in the machine body, a mounting plate fixedly installed on the fixed frame, a first reset spring fixedly installed on the mounting plate, a fixed plate fixedly installed on the L-shaped frame, a third reset spring fixedly installed on the fixed plate, and a lifting rail jointly installed at the ends of the first reset spring and the third reset spring.

[0012] As a preferred embodiment of the motor performance testing fixture of the present invention, a slider is slidably installed inside the lifting rail, a pin is fixedly installed on the slider, the pin slides through the circular plate and is inserted into the control plate, a wedge block is fixedly installed on the fixing frame by a reset spring, a locking groove is provided on the outer side of the control plate, and a pin slides through the fixing frame and cooperates with the locking groove on the wedge block.

[0013] As a preferred embodiment of the motor performance testing fixture of the present invention, the unlocking component includes a round rod fixedly installed on the lifting rail, the end of the round rod slidingly penetrating the mounting plate and fixedly installed with a triangular block, a moving rod slidingly installed on the reference plate, a guide column having a hollow interior and a lifting rod slidingly penetrating it, the lifting rod and the moving rod being connected by a connecting plate, and an arc-shaped plate fixedly installed at the ends of several lifting rods, and a wedge block two cooperating with wedge block one fixedly installed on the arc-shaped plate.

[0014] As a preferred embodiment of the motor performance testing fixture of the present invention, the fixture comprises: a plurality of columns fixedly mounted on the machine body, a lifting frame slidably mounted on the plurality of columns, a hysteresis brake fixedly mounted on the lifting frame, a torque-speed sensor connected to the hysteresis brake, the output end of the motor under test being connected to the torque-speed sensor via a coupling, a cylinder fixedly mounted on the machine body, and the output end of the cylinder being fixedly connected to the hysteresis brake.

[0015] The beneficial effects of the motor performance testing fixture of the present invention are as follows: In this application, the lifting and control components of the positioning mechanism work together to automatically adjust the height of the motor under test, ensuring that the shaft of the motor under test is precisely coaxial with the shaft of the hysteresis brake and the torque and speed sensor. This effectively improves the testing accuracy of core parameters such as torque and speed, while reducing component wear caused by coaxiality deviation during power transmission. Furthermore, thanks to the linkage control design of the locking and unlocking components, the lifting component can be automatically locked after the height of the motor under test is adjusted to the correct position. Simultaneously, the gear transmission connection between the drive and control components is realized, making the motor height adjustment and clamping / fixing actions linked and connected. This eliminates the need for separate step-by-step operations, significantly simplifying the pre-testing process and improving the efficiency of batch motor testing. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0018] Figure 2 This is a schematic diagram of the internal three-dimensional structure of the present invention.

[0019] Figure 3 This is a three-dimensional structural diagram of the hysteresis brake, torque and speed sensor, and coupling of the present invention.

[0020] Figure 4 This is a three-dimensional structural diagram of the movable frame, clamping plate, and limiting plate of the present invention.

[0021] Figure 5 This is a three-dimensional structural cross-sectional view of the movable rod, connecting plate, and lifting rod of the present invention.

[0022] Figure 6 This is a three-dimensional structural diagram of the circular plate, control plate, and lower arc block of the present invention.

[0023] Figure 7 This is a three-dimensional structural diagram of the L-shaped frame and control motor of the present invention.

[0024] Figure 8 For the present invention Figure 7 A magnified view of part A in the middle.

[0025] Figure 9 This is a three-dimensional structural diagram of the slide and movable frame of the present invention.

[0026] Figure 10 This is a three-dimensional sectional view of the disc, locking groove, and rotating shaft of the present invention.

[0027] Figure 11 This is a three-dimensional structural diagram of the circular plate and control plate of the present invention.

[0028] In the diagram: 1. Machine body; 2. Positioning mechanism; 21. Lifting assembly; 211. Guide column; 212. Lifting platform; 22. Control assembly; 221. Lifting rod; 222. Lifting plate; 223. Upper arc block; 224. L-shaped frame; 225. Control motor; 226. Circular plate; 227. Control board; 228. Lower arc block; 23. Reference plate; 3. Clamping mechanism; 31. Clamping assembly; 311. Slide groove; 312. Moving frame; 313. Clamping plate; 314. Limiting plate; 32. Drive assembly; 321. Rotating plate; 322. Bushing; 323. Arc groove; 324. Lever; 325. Disc; 326. Locking groove one; 327. Rotating shaft; 328. 33. Spring telescopic rod; 331. Locking assembly; 332. Fixing frame; 333. Mounting plate; 334. Return spring one; 335. Lifting rail; 336. Slider; 337. Pin one; 338. Return spring two; 339. Wedge block one; 330. Pin two; 34. Locking groove two; 35. Unlocking assembly; 36. Wedge block two; 37. Round rod; 38. Triangular block; 39. Moving rod; 30. Connecting plate; 31. Lifting rod; 32. Arc plate; 33. Fixing plate; 34. Return spring three; 4. Motor under test; 5. Column; 6. Lifting frame; 7. Hysteresis brake; 8. Torque and speed sensor; 9. Coupling; 10. Cylinder. Detailed Implementation

[0029] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0030] Reference Figure 1 and Figure 2 This embodiment provides a motor performance testing fixture that enables the motor height adjustment and clamping / fixing actions to be linked and connected, eliminating the need for separate steps. It includes a body 1; a positioning mechanism 2 located on the top of the body 1, the positioning mechanism 2 including a lifting component 21 for supporting and adjusting the height of the motor 4 under test; a control component 22 for controlling the lifting component 21; a clamping mechanism 3 located between the lifting component 21 and the body 1, the clamping mechanism 3 including a clamping component 31 for clamping and fixing the motor 4 under test; a drive component 32 for driving the clamping component 31; a locking component 33 and an unlocking component 34. After the height of the motor 4 under test is adjusted, the unlocking component 34 controls the locking component 33 to lock the lifting component 21 and simultaneously controls the drive component 32 and the control component 22 to form a gear transmission connection.

[0031] Reference Figure 1 , Figure 2 and Figure 3A plurality of columns 5 are fixedly installed on the body 1, and a lifting frame 6 is slidably installed on the plurality of columns 5. A hysteresis brake 7 is fixedly installed on the lifting frame 6, and a torque speed sensor 8 is connected to the hysteresis brake 7. The output end of the motor under test 4 is connected to the torque speed sensor 8 through a coupling 9. A cylinder 10 is fixedly installed on the body 1, and the output end of the cylinder 10 is fixedly connected to the hysteresis brake 7.

[0032] Reference Figure 2 , Figure 3 , Figure 4 and Figure 6 The lifting assembly 21 includes several guide columns 211 fixedly installed on the top of the body 1. A lifting platform 212 is slidably installed on the outer side of the several guide columns 211. A reference plate 23 is fixedly installed at the end of the guide columns 211. The control assembly 22 includes a lifting rod 221 fixedly installed on the side of the lifting platform 212 near the body 1. A lifting plate 222 is fixedly installed at the end of the lifting rod 221 through the body 1. An upper arc block 223 is fixedly installed on the lifting plate 222. An L-shaped frame 224 is fixedly installed inside the body 1. A control motor 225 is fixedly installed on the L-shaped frame 224. A circular plate 226 is fixedly installed at the output end of the control motor 225. A control plate 227 is rotatably installed on the circular plate 226. A lower arc block 228 that wedges with the upper arc block 223 is fixedly installed on the control plate 227.

[0033] It should be noted that the guide columns 211 are symmetrically distributed to provide stable guidance for the lifting platform 212. The reference plate 23 provides both a trigger support point for the unlocking component 34 and a travel limit for the lifting platform 212, so as to clamp the test motor 4 of different lengths. The wedge-shaped mating surfaces of the upper arc block 223 and the lower arc block 228 of the control component 22 are treated with wear resistance. The design of the control plate 227 and the circular plate 226 being rotatably connected provides a basis for the subsequent gear transmission connection between the control drive component 32 and the control component 22. The rotational motion of the control motor 225 can be converted into the linear lifting motion of the lifting platform 212 through the wedge-shaped mating.

[0034] In practical use, the motor under test 4 is placed on the lifting platform 212 to complete the initial placement and positioning of the motor under test 4. At this time, the lifting platform 212 is in the initial low position, and the lifting frame 6 is also in the initial high position. The coupling 9 half at the motor output shaft end and the coupling 9 half at the speed and torque sensor shaft end are in a separated state, reserving operating space for subsequent height adjustment and docking. Next, the control motor 225 is started. The output shaft of the control motor 225 drives the circular plate 226 to rotate. The circular plate 226 synchronously drives the control plate 22 on it. 7. Rotate (at this time, the circular plate 226 and the control plate 227 are locked). The lower arc block 228 on the control plate 227 rotates synchronously with the control plate 227. When the lower arc block 228 rotates, it and the wedge-shaped mating surface of the upper arc block 223 generate mutual squeezing force, which converts the circular rotation of the control plate 227 into the vertical linear motion of the lifting plate 222. Thus, the lifting rod 221 drives the lifting platform 212 and the motor 4 under test on the lifting platform 212 to make a smooth vertical upward movement along the guide column 211.

[0035] When the lifting platform 212 drives the tested motor 4 to rise to the preset test height, that is, when the top surface of the tested motor 4 touches the reference plate, the movement of the lifting platform 212 will simultaneously trigger the action of the unlocking component 34. The unlocking component 34 then controls the locking component 33 to lock the position of the lifting component 21, so that the lifting platform 212 and the tested motor 4 are kept at the preset height and cannot move up or down, thus achieving precise fixation of the height of the tested motor 4. While the unlocking component 34 controls the locking component 33 to lock the position of the lifting component 21, the unlocking component 34 simultaneously controls the drive component 32 and the control component 22 to form a gear transmission connection. After the drive assembly 32 is connected to the control assembly 22 by gear transmission, the control motor 225 drives the clamping assembly 31 to move, thereby completing the clamping and fixing of the motor under test 4. At this time, the shaft center of the motor under test 4, the shaft center of the hysteresis brake 7 and the shaft center of the torque and speed sensor 8 are completely coaxially aligned, thereby realizing the positioning and clamping and fixing of the motor under test 4 with different body lengths and shell diameters, so that the motor under test 4 has no position slippage or offset during the test, and finally completes the preliminary preparation work for the performance test of the entire motor under test 4, and the motor under test 4 can be started for formal performance test; After the height of the motor under test 4 is locked, cylinder 10 is activated. The output end of cylinder 10 drives the hysteresis brake 7 connected to the output end of cylinder 10, the torque-speed sensor 8 connected to the hysteresis brake 7, and half of the coupling 9 at the shaft end of the torque-speed sensor. Guided by the lifting frame 6, they move vertically downwards along the column 5. When they descend to the preset position, half of the coupling 9 at the shaft end of the torque-speed sensor 8 is connected to half of the coupling 9 at the output shaft end of the motor under test 4, ensuring the smoothness of power transmission during subsequent testing. After the coupling 9 is connected, the motor under test 4 is started. The output shaft of the motor under test 4 transmits power to the torque-speed sensor 8 through the coupling 9. The torque-speed sensor 8 then... The torque and speed data of the motor under test 4 during operation are accurately collected and fed back synchronously. The hysteresis brake 7 adjusts the load resistance precisely according to the different performance test requirements of the motor (no load, light load, full load, variable load, etc.) to simulate different working conditions of the motor under test 4. During the entire test phase when the motor under test 4 is running stably, the torque and speed sensor 8 continuously records the performance data under all working conditions until the preset test process is completed. After the test is completed, the motor under test 4 is shut down first, the hysteresis brake 7 unloads the load synchronously, and then the test components are separated, the clamping component 31 is released, the locking component 33 is unlocked, and the lifting platform 212 is reset in sequence to complete the full process test of the performance of the motor under test 4 in a single test.

[0036] Reference Figure 4 , Figure 6 , Figure 7 and Figure 9 The clamping assembly 31 includes several through-grooves 311 formed in the lifting platform 212. A movable frame 312 is slidably installed in the grooves 311. A clamping plate 313 is fixedly installed on the movable frame 312. Several limiting plates 314 are fixedly installed on the machine body 1. The vertical section of the movable frame 312 is elastically telescopic. The limiting plates 314 are used to limit the height of the clamping plate 313. When the clamping plate 313 abuts against the limiting plate 314, the lifting platform 212 continues to rise, which will cause the vertical section of the movable frame 312 to be compressed.

[0037] Reference Figure 4 , Figure 6 , Figure 7 and Figure 9 The drive assembly 32 includes a rotating plate 321 rotatably mounted on the lifting platform 212. A bushing 322 is fixedly mounted on the rotating plate 321. Several arc-shaped grooves 323 are formed on the rotating plate 321. A lever 324 that slides with the arc-shaped grooves 323 is fixedly mounted on the moving frame 312. A rotating shaft 327 is rotatably mounted between the L-shaped frame 224 and the machine body 1. The output shaft of the control motor 225 is connected to the bushing 322 through gear transmission under the cooperative control of the unlocking assembly 34 and the locking assembly 33.

[0038] Reference Figure 7 and Figure 10 A spring telescopic rod 328 is fixedly installed on the lifting rail 334. A locking groove 326 is provided on the disc 325. The telescopic end of the spring telescopic rod 328 cooperates with the locking groove 326. The locking groove 326 is composed of several alternating arc-shaped openings. The diameter of the arc-shaped openings matches the diameter of the telescopic end of the spring telescopic rod 328.

[0039] It should be noted that the telescopic end of the spring telescopic rod 328 can fit tightly with the locking groove 326, thereby providing torque to the gear that meshes with the gear on the outer side of the output shaft of the control motor 225, so that the rotation of the output shaft of the control motor 225 can drive the rotating shaft 327 to rotate, and then drive the bushing 322 to rotate through gear transmission.

[0040] Reference Figure 6 , Figure 7 , Figure 8 and Figure 10 The locking assembly 33 includes a fixed frame 331 fixedly installed inside the body 1, a mounting plate 332 fixedly installed on the fixed frame 331, a return spring 333 fixedly installed on the mounting plate 332, a fixed plate 35 fixedly installed on the L-shaped frame 224, a return spring 36 fixedly installed on the fixed plate 35, and a lifting rail 334 is installed at the ends of the return spring 333 and the return spring 36.

[0041] Reference Figure 6 , Figure 7 , Figure 8 , Figure 10 and Figure 11 A slider 335 is slidably installed inside the lifting rail 334. A pin 336 is fixedly installed on the slider 335. The pin 336 slides through the circular plate 226 and is inserted into the control plate 227. A wedge block 338 is fixedly installed on the fixing frame 331 through a reset spring 337. A locking groove 330 is provided on the outer side of the control plate 227. A pin 339 is fixedly installed on the wedge block 338, which slides through the fixing frame 331 and cooperates with the locking groove 330. The locking groove 326 and the locking groove 330 are both composed of several alternating arc-shaped openings. The diameter of the arc-shaped openings matches the diameter of the extension end of the spring telescopic rod 328 and the diameter of the pin 339, respectively.

[0042] It should be noted that return spring 333 and return spring 36 provide balanced elastic support for the lifting rail 334, and both return spring 333 and return spring 36 are equipped with guide rods to ensure that the lifting rail 334 does not skew or jam during linear movement. The engagement of pin 336 with control plate 227 and circular plate 226 is a precise clearance fit. When pin 336 is engaged, it can simultaneously lock control plate 227 and circular plate 226, allowing them to rotate synchronously. When the control plate 227 is disengaged, the rotation of the circular plate 226 will not cause the control plate 227 to rotate. At the same time, the second pin 339 is inserted into the second locking groove 330 to lock the control plate 227, preventing the control plate 227 from rotating. This achieves the effect of locking the position of the lifting platform 212, preventing the control plate 227 from rotating due to vibration during the test, and preventing the lifting platform 212 from shifting position. The wedge-shaped mating surface of the first wedge block 338 is treated with smooth wear resistance, so that it can smoothly contact and separate from the second wedge block 341.

[0043] Reference Figure 6 , Figure 7 , Figure 8 , Figure 10 The unlocking component 34 includes a round rod 342 fixedly installed on the lifting rail 334. The end of the round rod 342 slides through the mounting plate 332 and is fixedly installed with a triangular block 343. The triangular block 343 cooperates with the second pin 339. A moving rod 344 is slidably installed on the reference plate 23. The guide post 211 is hollow inside and a lifting rod 346 slides through it. The lifting rod 346 and the moving rod 344 are connected by a connecting plate 345. Several lifting rods 346 have arc-shaped plates 347 fixedly installed at their ends. A second wedge block 341 that cooperates with the first wedge block 338 is fixedly installed on the arc-shaped plate 347.

[0044] It should be noted that the lifting rod 346 slides within the hollow inner wall of the guide column 211 and can be lifted by the lifting platform 212. The connecting plate 345 firmly connects the lifting rod 346 and the moving rod 344, ensuring their synchronized movement. This allows the moving rod 344 to move synchronously via the connecting plate 345 when it is lifted, thereby enabling the wedge block 341 and wedge block 338 to engage via the arc plate 347. The inclined surface of the triangular block 343 engages with the pin 339, so that when the wedge block 341 presses against the wedge block 338, causing the pin 339 to move, the triangular block 343 will be displaced by the pressure of the pin 339.

[0045] In practical use, during the process of raising the lifting platform 212 to adjust the height of the tested motor 4, the top surface of the motor gradually contacts and lifts the moving rod 344, and drives the lifting rod 346 to rise through the connecting rod. This causes the arc plate 347 to drive the wedge block 2 341 to squeeze the wedge block 1 338. The wedge block 1 338 is squeezed to overcome the elasticity of the return spring 2 337, causing displacement and compressing the return spring 2 337. Simultaneously, the pin 2 339 is driven to insert into the locking groove 2 330 on the outside of the control plate 227, locking the control plate 227 and preventing it from rotating, thus achieving the effect of locking the position of the lifting platform 212. At the same time, during the movement of the pin 2 339, it also squeezes the inclined surface of the triangular block 343, causing the triangular block 343 to move. The triangular block 343 drives the lifting rail 334 to move smoothly in a straight line along the guide rod inside the return spring 1 333 and the return spring 36 through the round rod 342. When the return spring 333 and return spring 36 are stretched synchronously, the pin 336 is pulled out from the control plate 227, releasing the synchronous locking of the circular plate 226 and the control plate 227. The circular plate 226 can rotate independently. At the same time, the movement of the lifting rail 334 will drive the spring telescopic rod 328 to move down, so that the telescopic section of the spring telescopic rod 328 is precisely engaged and tightly fitted with the locking groove 326 on the disc 325, providing stable torque for the meshing gears and ensuring that the rotational power of the output shaft of the control motor 225 can be smoothly transmitted to the rotating shaft 327, and then driven by the gear transmission to drive the bushing 322 and the rotating plate 321 to rotate synchronously. When the rotating plate 321 rotates, the arc groove 323 on it forms a sliding engagement with the lever 324 on the moving frame 312, driving the moving frame 312 to slide radially inward along the sliding groove 311 in the lifting platform 212. The clamping plate 313 moves synchronously with the moving frame 312.

[0046] Prior to this, during the ascent of the lifting platform 212, the limiting plate 314 on the body 1 rigidly restricts the height of the clamping plate 313, preventing the clamping plate 313 from shifting in height as the lifting platform 212 or the moving frame 312 moves, ensuring that the clamping plate 313 is always at the appropriate clamping height for the motor 4 under test. When the clamping plate 313 touches the limiting plate 314, if the lifting platform 212 still needs to rise slightly to accurately match the coaxial height of the test, the continued rise of the lifting platform 212 will compress the elastic telescopic vertical section of the moving frame 312, making it compress synchronously, using its elastic characteristics to adapt to the subsequent stroke of the lifting platform 212, and without affecting the radial clamping action of the clamping plate 313 on the motor 4 under test; the clamping plate 313 completes the uniform and stable clamping of the motor 4 under test under the drive of the moving frame 312. Throughout the testing phase, pin 239 remained locked within locking groove 230, firmly securing control plate 227. The lifting platform 212 maintained its position without shifting. After the test, control motor 225 rotated in the reverse direction, causing rotating plate 321 to rotate in the reverse direction. The interaction between arc groove 323 and lever 324 caused moving frame 312 to slide radially outward along slide groove 311 to reset. Clamping plate 313 simultaneously released from the tested motor 4. Subsequently, lifting platform 212 descended, the top surface of the motor separated from moving lever 344, the squeezing force of wedge block 241 on wedge block 138 disappeared, and the elastic force of reset spring 237 pushed wedge block 138. Upon reset, the second pin 339 disengages from the second locking groove 330, releasing the lock on the control plate 227. The retraction force of the first reset spring 333 and the third reset spring 36 drives the lifting rail 334 to move in the opposite direction of the guide rod to reset. The round rod 342 pulls the triangular block 343 back into position. The lifting rail 334 drives the slider 335 to re-insert the first pin 336 into the control plate 227 and the round plate 226, forming a precise clearance fit to lock the two together, allowing them to rotate synchronously. The vertical section of the moving frame 312 also extends and resets under its own elasticity. The entire clamping mechanism 3 returns to its initial state, waiting for the next test operation.

[0047] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A tooling for testing motor performance, characterized in that: include, Body (1); A positioning mechanism (2) is provided on the top of the body (1), the positioning mechanism (2) includes, Lifting assembly (21), which is used to support and adjust the height of the motor (4) under test; Control component (22), the control component (22) is used to control the lifting component (21); A clamping mechanism (3) is disposed between the lifting assembly (21) and the machine body (1), the clamping mechanism (3) comprising, Clamping assembly (31), the clamping assembly (31) is used to clamp and fix the motor under test (4); A drive assembly (32) is used to drive a clamping assembly (31). After the height of the motor under test (4) is adjusted, the locking component (33) controls the locking component (33) to lock the lifting component (21) and simultaneously controls the drive component (32) and the control component (22) to form a gear transmission connection.

2. The motor performance testing fixture as described in claim 1, characterized in that: The lifting assembly (21) includes several guide columns (211) fixedly installed on the top of the body (1), and a lifting platform (212) is slidably installed on the outer side of the several guide columns (211). A reference plate (23) is fixedly installed at the end of the guide column (211).

3. The motor performance testing fixture as described in claim 2, characterized in that: The control component (22) includes a lifting rod (221) fixedly installed on the side of the lifting platform (212) near the machine body (1). The end of the lifting rod (221) slides through the machine body (1) and is fixedly installed with a lifting plate (222). An upper arc block (223) is fixedly installed on the lifting plate (222). An L-shaped frame (224) is fixedly installed inside the machine body (1). A control motor (225) is fixedly installed on the L-shaped frame (224). A circular plate (226) is fixedly installed at the output end of the control motor (225). A control plate (227) is rotatably installed on the circular plate (226). A lower arc block (228) that wedges with the upper arc block (223) is fixedly installed on the control plate (227).

4. The motor performance testing fixture as described in claim 3, characterized in that: The clamping assembly (31) includes several through-grooves (311) formed in the lifting platform (212), a movable frame (312) is slidably installed in the groove (311), a clamping plate (313) is fixedly installed on the movable frame (312), and several limiting plates (314) are fixedly installed on the machine body (1).

5. The motor performance testing fixture as described in claim 4, characterized in that: The drive assembly (32) includes a rotating plate (321) rotatably mounted on a lifting platform (212), a bushing (322) fixedly mounted on the rotating plate (321), and a plurality of arc-shaped grooves (323) opened on the rotating plate (321). A lever (324) that slides with the arc-shaped grooves (323) is fixedly mounted on the moving frame (312). A rotating shaft (327) is rotatably mounted between the L-shaped frame (224) and the machine body (1). The output shaft of the control motor (225) and the bushing (322) are connected by gear transmission under the cooperative control of the unlocking assembly (34) and the locking assembly (33).

6. The motor performance testing fixture as described in claim 5, characterized in that: A spring telescopic rod (328) is fixedly installed on the lifting rail (334), and a locking groove (326) is provided on the disc (325). The telescopic end of the spring telescopic rod (328) cooperates with the locking groove (326).

7. The motor performance testing fixture as described in claim 6, characterized in that: The locking assembly (33) includes a fixed frame (331) fixedly installed inside the body (1), a mounting plate (332) fixedly installed on the fixed frame (331), a first reset spring (333) fixedly installed on the mounting plate (332), a fixed plate (35) fixedly installed on the L-shaped frame (224), a third reset spring (36) fixedly installed on the fixed plate (35), and a lifting rail (334) is installed at the ends of the first reset spring (333) and the third reset spring (36).

8. The motor performance testing fixture as described in claim 7, characterized in that: A slider (335) is slidably installed inside the lifting rail (334). A pin (336) is fixedly installed on the slider (335). The pin (336) slides through the circular plate (226) and is inserted into the control plate (227). A wedge block (338) is fixedly installed on the fixing frame (331) by a reset spring (337). A locking groove (330) is provided on the outer side of the control plate (227). A pin (339) is fixedly installed on the wedge block (338) that slides through the fixing frame (331) and cooperates with the locking groove (330).

9. The motor performance testing fixture as described in claim 8, characterized in that: The unlocking component (34) includes a round rod (342) fixedly installed on the lifting rail (334). The end of the round rod (342) slides through the mounting plate (332) and is fixedly installed with a triangular block (343). A moving rod (344) is slidably installed on the reference plate (23). The guide column (211) is hollow inside and has a lifting rod (346) slidably inserted through it. The lifting rod (346) and the moving rod (344) are connected by a connecting plate (345). Several lifting rods (346) are fixedly installed with an arc plate (347) at their ends. A wedge block (341) that cooperates with the wedge block (338) is fixedly installed on the arc plate (347).

10. The motor performance testing fixture as described in claim 9, characterized in that: A number of columns (5) are fixedly installed on the machine body (1), and a lifting frame (6) is slidably installed on the columns (5). A hysteresis brake (7) is fixedly installed on the lifting frame (6), and a torque speed sensor (8) is connected to the hysteresis brake (7). The output end of the motor under test (4) is connected to the torque speed sensor (8) through a coupling (9). A cylinder (10) is fixedly installed on the machine body (1), and the output end of the cylinder (10) is fixedly connected to the hysteresis brake (7).

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