Stator performance test board

Abstract

The utility model relates to a stator performance testboard, which comprises a frame, a stator transfer mechanism and a laser tagging head used for performing laser tagging on stators qualified in electrical performance test, a turntable is arranged on the frame, and a plurality of mounting slots are formed in the turntable at equal intervals along the circumferential direction of the turntable. A positioning plate is detachably mounted in each mounting groove hole; and a positioning groove for accommodating a stator is formed in the plate surface of each positioning plate. The stator performance test bench designed by the utility model integrates the functions of stator test, rejection and tagging, can flexibly adapt to stators of different specifications through a modular structure and the detachable positioning plate, improves the universality and flexibility of equipment, utilizes the detachable test seat, the ejector rod driven by the cylinder and the cushion block with the guide sliding hole, and is convenient to use. Rapid, stable and reliable electric connection with a stator lead head is realized, and the accuracy and reliability of a test result are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of motor stator manufacturing, in particular to a stator performance test bench. Background Art

[0002] During the motor manufacturing process, the stator, as a core component, has a direct impact on overall performance and reliability. Therefore, rigorous electrical performance testing of the stator is essential after production to screen out substandard products and ensure final motor quality.

[0003] Traditional stator testing and coding processes are often fragmented and inefficient: First, an operator manually places the stator on a test bench and connects it to test equipment for electrical performance testing. Next, the test results are manually recorded and the stator is transferred to a coding station. Finally, based on the recorded test results, the stator is coded manually through labeling, inkjet printing, or other methods. This method is not only time-consuming and labor-intensive, but also prone to human error, affecting the accuracy of testing and coding, and increasing production costs.

[0004] To improve production efficiency and product quality, automated stator testing and coding equipment is emerging. For example, some existing equipment uses robotic arms to automatically grasp and place stators and then automatically code them after testing. However, these devices often have limitations. For example, their positioning mechanisms are typically designed for specific stators, lacking flexibility and making it difficult to adapt to the testing needs of stators of different models or sizes. Furthermore, the testing and coding functions of existing equipment are often separated, requiring multiple stator handling operations, which reduces efficiency. Utility Model Content

[0005] In order to solve the above problems, the utility model provides a stator performance test bench which improves the versatility and flexibility of the equipment.

[0006] In order to achieve the above-mentioned purpose, the stator performance test bench designed by the present invention includes a frame, a stator transfer mechanism and a laser coding terminal for laser coding the stators that have passed the electrical performance test. The frame is provided with a turntable, and the turntable is provided with a plurality of mounting slots equidistantly spaced along its own circumference. A positioning plate is detachably installed in each mounting slot, and a positioning slot for accommodating the stator is provided on the surface of each positioning plate; a test seat is provided next to each positioning slot, and a pad and an electrical connection plug that is plugged into the stator lead head of the stator are provided at the top of the test seat, and a terminal for connecting to an external electrical performance test device is embedded on the side of the test seat, and the electrical connection plug is electrically connected to the terminal; a pad is provided on the top of the test seat, and a guide sliding hole that is compatible with the electrical connection plug is provided on the pad, and the pad faces A tension spring is fixedly connected to one side of the test seat; a countersunk hole for accommodating the tension spring is provided on the top of the test seat, and the side of the tension spring facing away from the pad is fixed to the bottom of the countersunk hole; a push rod is provided at the bottom of the pad, and the lower end of the push rod extends to the bottom of the table of the turntable; the frame is also provided with a push-off cylinder, which is provided under the turntable and on the moving path of each test seat, and is used to push the stator lead head plugged into the electrical connection pin off the test seat; the frame is also provided with a Z-axis screw lifting structure, and the laser end terminal is fixedly mounted on the screw slider of the Z-axis screw lifting structure, and the Z-axis screw lifting structure is provided with a handwheel for driving the screw slider to rise and fall; the stator transfer mechanism is configured to transfer the stator that has been pushed off the test seat and failed the electrical performance test to the waste removal channel.

[0007] Furthermore, the groove wall of the positioning groove gradually expands toward the groove opening.

[0008] Furthermore, a plurality of silicone blocks are provided around the notch of the positioning groove, and the silicone blocks at least partially extend into the positioning groove, and a slope is provided on the portion of the silicone block placed in the positioning groove, and the slope is inclined toward the inside of the positioning groove.

[0009] Furthermore, a supporting block is provided on the bottom side of the turntable and / or the bottom side of the positioning plate, and the supporting block at least partially extends into the positioning groove on the corresponding positioning plate.

[0010] Furthermore, the waste rejection channel includes an inclined material plate and guard plates arranged on both sides of the material plate, the distance between the guard plates is adapted to the width of a single stator, and the guard plate is provided with a corresponding sensor on the side close to the feed end of the material plate, and the stator transfer mechanism is configured to transfer stators that fail the test to the waste rejection channel.

[0011] Furthermore, the stator transfer mechanism includes an X-axis moving mechanism, a Z-axis lifting mechanism and a finger cylinder, the finger cylinder is arranged at the power output end of the Z-axis lifting mechanism, and the Z-axis lifting mechanism is arranged at the power output end of the X-axis moving mechanism.

[0012] Furthermore, the test socket includes a first part and a second part stacked up and down, and a groove is provided on the side of the second part facing the first part, and the terminal is embedded in the second part and at least partially placed in the groove; the electrical connection pin is fixed on the first part, and the electrical connection pin is at least partially placed in the groove.

[0013] Furthermore, it also includes a pressure block, each of which is provided on both sides of the test seat, and the two pressure blocks have a fixing portion extending away from each other and a pressing portion extending toward each other, and the fixing portion is fixed to the turntable by screws so that the first portion and the second portion are pressed and fixed to the turntable through the two pressing portions.

[0014] Furthermore, an insulating sleeve is provided on the electrical connection pin, and the top end of the electrical connection pin is at least partially exposed outside the insulating sleeve; the aperture of the guide slide hole is adapted to the diameter of the insulating sleeve.

[0015] Furthermore, the turntable and the test seat are provided with a through hole for the push rod to pass through, the push rod passes through the through hole and is coaxially arranged relative to the piston rod of the ejection cylinder, and the opening of the through hole on the turntable away from the test seat is in a one-way enlarged shape.

[0016] The stator performance test bench designed by the present invention integrates stator testing, rejection, and coding functions. Through a modular structure and a detachable positioning plate, it can flexibly adapt to stators of different specifications, thereby improving the versatility and flexibility of the equipment. Furthermore, it utilizes a detachable test seat, a cylinder-driven ejector, and a pad with a guide slide hole to achieve a fast, stable, and reliable electrical connection with the stator lead head, ensuring the accuracy and reliability of the test results. At the same time, the optimized positioning groove facilitates stator placement and reduces friction. The silicone block and bevel design more firmly secure the stator to avoid movement or loosening during the test. Furthermore, the test bench also has an automated rejection function. Using a ejection mechanism and a transfer mechanism, stators that fail the test can be automatically rejected, improving production efficiency and reducing labor costs. This is of great significance for improving the production efficiency and competitiveness of motor manufacturers. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of the structure of the stator performance test bench provided in an embodiment of the present application;

[0018] Figure 2 yes Figure 1 Front view of

[0019] Figure 3 yes Figure 1 Left view of;

[0020] Figure 4 yes Figure 1 A top view of

[0021] Figure 5 This is a schematic structural diagram of a positioning plate provided in an embodiment of the present application;

[0022] Figure 6 This is a schematic diagram of the structure of the test socket provided in an embodiment of the present application;

[0023] Figure 7 Schematic diagram of the planar structure of the test socket provided in an embodiment of the present application;

[0024] Figure 8 yes Figure 7 Cross-sectional view at AA in the middle;

[0025] Figure 9 yes Figure 7 Cross-sectional view at the middle BB.

[0026] Among them: frame 100, stator transfer mechanism 200, X-axis moving mechanism 201, Z-axis lifting mechanism 202, finger cylinder 203, laser end terminal 300, turntable 10, mounting slot 11, positioning plate 12, positioning slot 13, silicone block 14, inclined surface 15, support block 16, test seat 20, first part 20a, second part 20b, groove 20c, terminal 21, countersunk hole 22, ejector 33, pad 30, guide hole 31, tension spring 32, electrical connection plug 40, insulating sleeve 41, ejection cylinder 50, Z-axis screw lifting structure 51, screw slider 52, handwheel 53, waste removal channel 60, material plate 61, guard plate 62, shooting sensor 63, pressure block 70, fixing part 71, pressing part 72, through hole 80. DETAILED DESCRIPTION

[0027] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention and are not used to limit the present invention.

[0028] like Figures 1 to 9As shown, the stator performance test bench described in this embodiment includes a frame 100, a stator transfer mechanism 200 and a laser marking terminal 300 for laser marking the stators that have passed the electrical performance test. The frame 100 is provided with a turntable 10, and the turntable 10 is provided with a plurality of mounting slots 11 spaced equidistantly along its circumference. A positioning plate 12 is detachably mounted in each mounting slot 11, and a positioning slot 13 for accommodating the stator is provided on the surface of each positioning plate 12; each positioning slot 13 is provided with a positioning slot 13. A test socket 20 is provided on each side, and a pad 30 and an electrical connection plug 40 adapted to the stator lead head of the stator are provided on the top of the test socket 20, and a terminal 21 for connecting an external electrical performance test device is embedded on the side of the test socket 20, and the electrical connection plug 40 is electrically connected to the terminal 21; a pad 30 is provided on the top of the test socket 20, and a guide slide hole 31 adapted to the electrical connection plug 40 is provided on the pad 30, and the pad 30 faces one side of the test socket 20 A tension spring 32 is fixedly connected; a countersunk hole 22 for accommodating the tension spring 32 is provided on the top of the test seat 20, and the side of the tension spring 32 facing away from the pad 30 is fixed to the bottom of the countersunk hole 22; a push rod 33 is provided at the bottom of the pad 30, and the lower end of the push rod 33 extends to the bottom of the table of the turntable 10; the frame 100 is also provided with a degassing cylinder 50, which is provided below the turntable 10 and on the moving path of each test seat 20, for The stator lead head plugged into the electrical connection pin 40 is pushed off the test socket 20; the frame 100 is also provided with a Z-axis screw lifting structure 51, and the laser end effector terminal 300 is fixedly mounted on the screw slider 52 of the Z-axis screw lifting structure 51, and the Z-axis screw lifting structure 51 is provided with a handwheel 53 for driving the screw slider 52 to rise and fall; the stator transfer mechanism 200 is configured to transfer the stator that has been pushed off the test socket 20 and failed the electrical performance test to the waste removal channel 60.

[0029] During specific implementation, the frame 100 is used as the supporting base, and the laser coding terminal 300 is responsible for laser coding and marking after the stator completes the electrical performance test. It is fixedly installed on the screw slider 52 of the Z-axis screw lifting structure 51, that is, by manually rotating the handwheel 53, the screw slider 52 can be driven to rise and fall along the Z-axis direction, and the height of the laser coding terminal 300 can be accurately adjusted to adapt to stators of different thicknesses or heights, ensuring the best coding effect.

[0030] When conducting a stator test, the operator first selects the corresponding positioning plate 12 according to the specifications of the stator 400 to be tested and installs it on the turntable 10. Then, the stator 400 to be tested is placed in the positioning groove 13 on the positioning plate 12. Under the action of the tension spring 32, the pad 30 will press the test socket 20 to expose the electrical connection pin 40. At this time, the operator plugs the stator lead head (not shown) of the stator 400 to be tested into the electrical connection pin 40 at the top of the test socket 20 to establish a reliable electrical connection. This connection allows the test socket 20 to be connected to an external electrical performance test device 500 (for example, a motor stator comprehensive tester) to perform a comprehensive electrical performance test on the stator, including AC withstand voltage, insulation resistance, turn-to-turn withstand voltage, DC resistance, inductance, reverse embedding and steering. In this embodiment, the electrical performance test equipment 500 mentioned can be a mature product currently available on the market, such as a motor stator comprehensive tester, and its test principle will not be repeated in this embodiment.

[0031] When the test is completed, the ejection cylinder 50 extends until the pad 30 overcomes the preload of the tension spring 32, separates from the test socket 20, and drives the stator lead head to completely detach from the electrical connection pin 40. Finally, the ejection cylinder 50 is controlled to retract, so that the ejector rod 33 and the pad 30 are reset under the action of the tension spring 32, and prepare for the next stator test.

[0032] Once the stator 400 to be tested completes the test and the result is qualified, the turntable 10 will rotate and accurately position the stator 400 to be tested next to the laser coding terminal 300. The laser coding terminal 300 will then start to laser code the stator 400 to be tested, marking key information (such as production date, serial number, specifications and model, etc.). After the coding is completed, the stator rotates to the predetermined position with the turntable 10 and can be sent to the conveyor line of the next process or the finished product storage area by humans or a robotic arm; for unqualified stators, the transfer mechanism 20 (for example, a robotic arm with a vacuum suction cup or clamping device) will remove them from the positioning slot 13 and transfer them to the waste rejection channel 60 for rework.

[0033] It is worth emphasizing that the present embodiment employs a replaceable positioning plate 12. By replacing different positioning plates 12 according to the specifications of the stator to be measured, the mechanism can flexibly accommodate stators of various specifications, models, and sizes, eliminating the need for customized testing and coding equipment for each stator. This modular design greatly improves the versatility and utilization of the equipment, and effectively reduces production costs and equipment investment. In addition, the replacement of the positioning plate 12 is simple and quick, further improving production efficiency. For example, the positioning plate 12 can be fixed to the turntable 10 using a quick locking mechanism, allowing for quick and convenient replacement.

[0034] In some embodiments, as Figure 5As shown, the slot walls of the positioning slot 13 gradually widen toward the slot opening. With this structural design, since the slot opening of the positioning slot 13 is wider than the slot interior, the operator can more easily place the stator 300 to be tested into the positioning slot 13. Furthermore, the spacious slot opening reduces friction between the stator 300 to be tested and the slot walls, minimizing scratches or wear caused by friction, thereby effectively reducing the defect rate of the stator 300 to be tested due to damage during placement.

[0035] In some embodiments, as Figure 5 As shown, a plurality of silicone blocks 14 are provided around the notch of the positioning groove 13. The silicone blocks 14 at least partially extend into the positioning groove 13, and a slope 15 is provided on the portion of the silicone block 14 placed in the positioning groove 13. The slope 15 is inclined toward the interior of the positioning groove 13. In this embodiment, a plurality of silicone blocks 14 are provided around the notch of the positioning groove 13. These silicone blocks at least partially extend into the positioning groove 13 and effectively fix the stator 300 to be tested through their elasticity and friction, preventing it from moving or loosening during the testing and coding process. At the same time, the silicone block 14 is designed with a slope 15 at the portion that contacts the stator. The direction of the slope 15 points to the bottom of the positioning groove 13. This slope design not only guides the stator 300 to be tested to slide toward the bottom of the positioning groove 13, firmly fixing it in the appropriate position, but also effectively reduces the resistance of the stator to escape from the positioning groove 13.

[0036] In some embodiments, as Figure 5 As shown, a support block 16 is provided on the bottom side of the turntable 10 and / or the bottom side of the positioning plate 12. The support block 16 at least partially extends into the positioning slot 13 on the corresponding positioning plate 12. With this structural design, the support block 16 can provide support for the stator from the bottom to ensure stability during the testing process.

[0037] In some embodiments, as Figure 1 、 Figure 2 、 Figure 3 As shown, the waste rejection channel 60 includes an inclined material plate 61 and guard plates 62 arranged on both sides of the material plate 61. The distance between the guard plates 62 is adapted to the width of a single stator. The guard plate 62 is provided with a corresponding sensor 63 on the side close to the feed end of the material plate 61. The stator transfer mechanism 200 is configured to transfer the stators that fail the test to the waste rejection channel 60.

[0038] With this structural design, when the stators that fail the test are transferred to the waste rejection channel 60, the inclined material plate 61 can use the stator's own gravity to automatically discharge without manual intervention. At the same time, the distance between the guard plates 62 on both sides is adapted to the width of a single stator, which can prevent the stators from scattering during the discharge process and keep the working area clean and safe; and the through-beam sensor 63 is installed on the side of the guard plate 62 close to the feed end of the material plate 61 to monitor the discharge of unqualified stators in real time. That is, when the accumulation of unqualified stators on the material plate 61 exceeds a preset number, the sensor 63 will trigger an alarm, prompting the staff to clean it up in time to avoid blockage of the material channel and ensure the continuous and stable operation of the system.

[0039] In some embodiments, as Figure 2 As shown, the stator transfer mechanism 200 includes an X-axis moving mechanism 201, a Z-axis lifting mechanism 202 and a finger cylinder 203. The finger cylinder 203 is arranged at the power output end of the Z-axis lifting mechanism 202, and the Z-axis lifting mechanism 202 is arranged at the power output end of the X-axis moving mechanism 201.

[0040] In this embodiment, the X-axis moving mechanism 201 can employ a linear slider guide or a lead screw nut guide, and the Z-axis lifting mechanism 202 can employ a lead screw lifting structure, an electric lifting structure, or a pneumatic cylinder lifting structure. Thus, through the coordinated control of the X-axis moving mechanism 201 and the Z-axis lifting mechanism 202, the stator transport mechanism 200 can move the stator to any position within the working area to accommodate various workstation layouts, for example, transporting the stator from the test seat 20 to the waste rejection channel 60, thereby enhancing the flexibility of the equipment.

[0041] In some embodiments, as Figures 6 to 9 As shown, the test socket 20 includes a first part 20a and a second part 20b stacked up one above the other, and a groove 20c is provided on the side of the second part 20b facing the first part 20a. The terminal 21 is embedded in the second part 20b and at least partially placed in the groove 20c; the electrical connection pin 40 is fixed on the first part 20a, and the electrical connection pin 40 is at least partially placed in the groove 20c.

[0042] By utilizing this structural design, the test socket 20 is designed to be composed of a first part 20a and a second part 20b stacked one above the other, which makes it easy to replace the terminal 21 or the electrical connection pin 40. That is, whether the terminal 21 or the electrical connection pin 40 fails, or a different model of terminal 21 needs to be replaced to adapt to different test equipment, it is only necessary to replace the corresponding parts without disassembling or replacing the entire test socket 20, thereby significantly reducing maintenance costs and time and improving equipment maintenance efficiency. At the same time, the groove 20c provides an accommodation space for the wiring harness connecting the terminal 21 and the electrical connection pin 40, making the internal wiring more regular and avoiding exposure of the wiring harness. At the same time, it also protects the wiring harness from external damage, thereby improving the reliability and safety of the connection.

[0043] In some embodiments, as Figure 6 、 Figure 9 As shown, it also includes a pressure block 70, which is provided on each side of the test seat 20. The two pressure blocks 70 have a fixing portion 71 extending away from each other and a pressing portion 72 extending toward each other. The fixing portion 71 is fixed to the turntable 10 by screws, so that the first portion 20a and the second portion 20b are pressed and fixed on the turntable 10 through the two pressing portions 72.

[0044] In specific implementation, the fixing part 71 of the pressure block 70 is fixed to the turntable 10 by screws, and then the test socket 20 is pressed tightly by the lower pressing part 72 to complete the installation of the test socket. The symmetrical force can fix the first part 20a and the second part 20b more evenly and firmly to prevent them from moving or loosening during the test, thereby ensuring the stability and accuracy of the test and making the installation and disassembly process simpler.

[0045] In some embodiments, as Figure 6 、 Figure 8 As shown, the electrical connector pin 40 is covered with an insulating sleeve 41, and the top of the electrical connector pin 40 is at least partially exposed outside the insulating sleeve 41; the diameter of the guide slide hole 31 is compatible with the diameter of the insulating sleeve 41. In this embodiment, the insulating sleeve 41 can effectively isolate the electrical connector pin 40 from other conductive components and protect the electrical connector pin 40 from wear and damage, especially in the case of frequent plugging and unplugging tests, effectively extending its service life. In addition, in this embodiment, the insulating sleeve 41 can be made of a brightly colored insulating material, such as red or yellow, to clearly mark the position of the electrical connector pin 40 and facilitate the operator's plugging and unplugging operations.

[0046] In some embodiments, as Figure 9As shown, the turntable 10 and the test socket 20 are provided with a through-hole 80 for the ejector rod 33 to pass through. The ejector rod 33 extends through the through-hole 80 and is coaxially arranged relative to the piston rod of the ejection cylinder 50. The through-hole 80 on the turntable 10, on the side facing away from the test socket 20, has a one-way enlarged shape. In actual use, due to factors such as manufacturing tolerances, assembly errors, or long-term wear and tear, the center position of the ejector rod 33 may deviate from the center position of the piston rod of the ejection cylinder 50. This deviation makes it difficult for the ejector rod 33 to precisely mate with the piston rod of the ejection cylinder 50, and may even cause collision and jamming, affecting the normal operation of the connector. Therefore, the through-hole 81 on the turntable 10 is designed to have a one-way enlarged shape, such as a bell-mouth or tapered shape, on the side facing away from the test socket 20. This allows for greater displacement errors. Even if the ejector rod 33 deviates slightly, the piston rod of the ejection cylinder 50 can smoothly enter the enlarged through-hole 81 and precisely mate with the end of the ejector rod 33, thereby improving assembly efficiency and fault tolerance.

[0047] The stator performance test bench provided in this embodiment integrates stator testing, rejection and coding functions. Through modular structure and detachable positioning plate, it can flexibly adapt to stators of different specifications, improving the versatility and flexibility of the equipment. It uses a detachable test seat, a cylinder-driven push rod and a pad with a guide slide hole to achieve a fast, stable and reliable electrical connection with the stator lead head, ensuring the accuracy and reliability of the test results. At the same time, the optimized positioning groove facilitates stator placement and reduces friction. At the same time, the silicone block and bevel design can more firmly fix the stator to avoid movement or loosening during the test. In addition, the test bench also has an automatic rejection function. Using the ejection mechanism and transfer mechanism, stators that fail the test can be automatically rejected, improving production efficiency and reducing labor costs. This is of great significance to improving the production efficiency and competitiveness of motor manufacturing companies.

[0048] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings. They 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. Therefore, they cannot be understood as limitations on the present invention.

[0049] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0050] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A stator performance test bench, comprising a frame, a stator transfer mechanism and a laser marking terminal for laser marking stators that have passed the electrical performance test, characterized in that: The frame is provided with a turntable, and the turntable is provided with a plurality of mounting slots at equal intervals along its circumference, and a positioning plate is detachably installed in each mounting slot, and a positioning slot for accommodating the stator is provided on the surface of each positioning plate; a test seat is provided next to each positioning slot, and a pad and an electrical connection plug that is plugged into and adapted for the stator lead head of the stator are provided at the top of the test seat, and a terminal for connecting an external electrical performance test device is embedded on the side of the test seat, and the electrical connection plug is electrically connected to the terminal; a pad is provided on the top of the test seat, and a guide sliding hole that is adapted for the electrical connection plug is provided on the pad, and a tension spring is fixedly connected to the side of the pad facing the test seat; a hole for accommodating the tension spring is provided on the top of the test seat The countersunk hole of the extension spring, the side of the extension spring facing away from the pad is fixed to the bottom of the countersunk hole; a push rod is provided at the bottom of the pad, and the lower end of the push rod extends to the bottom of the table of the turntable; the frame is also provided with a push-off cylinder, which is provided below the turntable and on the moving path of each test socket, and is used to push the stator lead head plugged into the electrical connection pin off the test socket; the frame is also provided with a Z-axis screw lifting structure, the laser end terminal is fixedly mounted on the screw slider of the Z-axis screw lifting structure, and the Z-axis screw lifting structure is provided with a handwheel for driving the screw slider to rise and fall; the stator transport mechanism is configured to transport the stator that has been ejected from the test socket and failed the electrical performance test to the waste removal channel.

2. The stator performance test bench according to claim 1, characterized in that: The groove wall of the positioning groove gradually expands toward the groove opening.

3. The stator performance test bench according to claim 1, characterized in that: A plurality of silicone blocks are arranged around the groove opening of the positioning groove, and at least part of the silicone blocks extend into the positioning groove. The part of the silicone block placed in the positioning groove is provided with an inclined surface, which is inclined toward the inside of the positioning groove.

4. The stator performance test bench according to claim 1, 2 or 3, characterized in that: A supporting block is provided on the bottom side of the turntable and / or the bottom side of the positioning plate, and the supporting block at least partially extends into the positioning groove on the corresponding positioning plate.

5. The stator performance test bench according to claim 1, characterized in that: The waste rejection channel includes an inclined material plate and guard plates arranged on both sides of the material plate. The distance between the guard plates is adapted to the width of a single stator. The guard plate is provided with a corresponding sensor on the side close to the feeding end of the material plate. The stator transfer mechanism is configured to transfer stators that fail the test to the waste rejection channel.

6. The stator performance test bench according to claim 1, characterized in that: The stator transfer mechanism includes an X-axis moving mechanism, a Z-axis lifting mechanism and a finger cylinder. The finger cylinder is arranged at the power output end of the Z-axis lifting mechanism, and the Z-axis lifting mechanism is arranged at the power output end of the X-axis moving mechanism.

7. The stator performance test bench according to claim 1, characterized in that: The test socket includes a first part and a second part stacked up one above the other, a groove being provided on the side of the second part facing the first part, the terminal being embedded in the second part and at least partially placed in the groove; the electrical connection pin is fixed on the first part, and the electrical connection pin is at least partially placed in the groove.

8. The stator performance test bench according to claim 7, characterized in that: It also includes a pressure block, each of which is provided on both sides of the test seat, and the two pressure blocks have a fixing portion extending away from each other and a pressing portion extending toward each other, and the fixing portion is fixed to the turntable by screws so that the first portion and the second portion are pressed and fixed to the turntable through the two pressing portions.

9. The stator performance test bench according to claim 1, characterized in that: An insulating sleeve is provided on the electrical connection plug, and at least a portion of the top end of the electrical connection plug is exposed outside the insulating sleeve; the aperture of the guide slide hole is adapted to the diameter of the insulating sleeve.

10. The stator performance test bench according to claim 1, characterized in that: The turntable and the test seat are provided with through holes for the push rod to pass through. The push rod passes through the through hole and is coaxially arranged opposite to the piston rod of the ejection cylinder. The opening of the through hole on the turntable away from the test seat is in a one-way enlarged shape.

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