Motor stator electrical performance detection mechanism and equipment

Abstract

The utility model relates to a motor stator electrical performance detection mechanism and equipment, which belongs to the technical field of motor stator electrical performance detection, and comprises a bottom plate, a plurality of clamping jaws arranged on the bottom plate, a top plate, an air cylinder arranged on the top plate, and a lifting plate connected with the output end of the air cylinder, the inclined blocks are fixed on the lifting plate; the clamping jaw comprises a fixed seat, a test probe arranged on the fixed seat, a jaw body and an elastic structure, the middle part of the jaw body is rotationally connected with the fixed seat through a pin shaft, and the jaw body comprises an inclined arm positioned at the upper part of the jaw body and a bent hook positioned at the lower part of the jaw body. A device comprises a fixing frame, a lifting mechanism, a carrying mechanism and a motor stator electrical performance detection mechanism. According to the scheme, the number of used air cylinders is small, cost is low, the space occupancy rate is low, and clamping force is stable.

Description

Technical Field

[0001] The utility model belongs to the technical field of motor stator electrical performance detection, and particularly relates to a motor stator electrical performance detection mechanism and equipment. Background Art

[0002] The motor stator is the stationary part of the motor, generally composed of a stator core, stator windings, and a frame. It is used to generate a rotating magnetic field. To ensure the performance of the magnetic field, a testing process is set up during the motor stator production process. Specifically, the resistance, withstand voltage, and phase-to-phase voltage of the three-phase windings on the stator winding are tested. All of the above tests require electrical connection to the stator winding.

[0003] Chinese patent publication number CN111398808A discloses a motor stator performance testing device, in which a clamping member includes contacts connected to a stator tester circuit. The contacts are pushed by a clamping cylinder fixed to a fixed plate and cooperate with an insulated wire mold to clamp the stator lead wire.

[0004] Among them, there are a large number of terminal blocks on the motor stator, generally 6. If the above-mentioned clamping device is used to clamp the terminal blocks, a large number of clamping cylinders are required, which is costly and space-limited. If the cylinder directly pushes multiple contacts, the length of the force arm between each contact and the output end of the cylinder is different, and the clamping force applied to each contact is different. If the clamping force is too large, the terminal blocks are easily damaged. If the clamping force is too small, poor contact is likely to occur at the connection point of the terminal blocks. Utility Model Content

[0005] In order to solve the above technical problems, the technical solution of the utility model is as follows: a motor stator electrical performance detection mechanism, comprising a bottom plate, a plurality of clamping claws provided on the bottom plate, a top plate, a cylinder mounted on the top plate, a lifting plate connected to the output end of the cylinder, and a plurality of inclined blocks fixed to the lifting plate, wherein the inclined blocks are connected to the clamping claws in a one-to-one correspondence;

[0006] The clamp includes a fixed base, a test probe arranged on the fixed base, a claw body, and an elastic structure with one end connected to the fixed base and the other end connected to the claw body. The middle part of the claw body is rotatably connected to the fixed base through a pin shaft. The claw body includes an oblique arm located at its upper part and a curved hook located at its lower part. The curved hook is pulled by the elastic structure to abut against the test probe. The oblique block is used to press down the oblique arm to separate the curved hook from the test probe.

[0007] Specifically, a connection terminal is clamped between the test probe and the hook, and the connection terminal is electrically connected to the test probe.

[0008] Specifically, the bottom plate is provided with an avoidance groove, and a plurality of the test probes are distributed around the avoidance groove.

[0009] Specifically, a bolt is fixedly connected to the inner side of the hook, and one end of the elastic structure is fixed on the bolt.

[0010] Specifically, the elastic structure is a spring.

[0011] Specifically, the lower end of the inclined block is tapered.

[0012] Specifically, a limit block is provided on the fixing seat for limiting the rotation range of the oblique arm.

[0013] A device comprises a fixing frame, a lifting mechanism, a carrying mechanism, and a motor stator electrical performance detection mechanism.

[0014] Specifically, the lifting mechanism includes a fixing mechanism, a lifting cylinder and a carrier. The lifting cylinder is installed on the fixing mechanism, and the output end of the lifting cylinder is connected to the carrier.

[0015] Specifically, the carrying mechanism includes a carrying body, a carrying plate fixedly connected to the carrying body, a base arranged on the carrying plate, a stator fixing ring arranged on the base, and a clamp arranged on one side of the stator fixing ring. The clamp can extend from the inner wall of the stator fixing ring toward its center to fix the motor stator located in the stator fixing ring.

[0016] The technical solution provided by the utility model has the following advantages compared with the existing technology:

[0017] The utility model adopts one cylinder to drive several inclined blocks, and the number of cylinders used is small, which reduces costs and space occupancy. When the clamping jaws are not affected by external forces, the claw body is pulled by the elastic structure to abut the terminal. The cylinder only operates when the clamping jaws are opened and closed, and no kinetic energy is required to maintain the closed state of the clamping jaws, further reducing costs. At the same time, under the action of the elastic structure, the clamping force is stable, and there is a buffer when clamping, avoiding damage to the test probe and the terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a bottom view of the motor stator electrical performance detection mechanism in the present invention;

[0019] Figure 2 It is a structural diagram of the lifting assembly in the utility model;

[0020] Figure 3 This is a structural diagram of the clamping jaws in the utility model;

[0021] Figure 4 It is the overall structural diagram of the equipment in this utility model;

[0022] Figure 5 It is a structural diagram of the fixing frame in the utility model;

[0023] Figure 6 It is a structural diagram of the lifting mechanism in the utility model;

[0024] Figure 7 It is a structural diagram of the carrying mechanism in the utility model.

[0025] Figure 1: 1. Fixing frame; 11. Instrument rack; 12. Resistance tester; 13. Surge tester; 14. Hi-pot tester; 2. Lifting mechanism; 21. Fixing mechanism; 211. Electric control connector; 212. Base; 213. Fixing block; 22. Lifting cylinder; 23. Carrier; 24. Fixing pin; 3. Motor stator electrical performance testing mechanism; 31. Bottom plate; 32. Avoidance groove; 33. Clamp; 331. Fixing seat; 332. Test probe ; 333, claw body; 3331, oblique arm; 3332, bent hook; 334, pin shaft; 335, limit block; 336, spring; 34, lifting assembly; 341, top plate; 342, cylinder; 343, lifting plate; 344, oblique block; 345, guide column; 35, wire harness protective cover; 4, carrying mechanism; 41, carrying body; 42, carrier plate; 43, base; 44, stator fixing ring; 45, clamp; 5, motor stator; 51, terminal. DETAILED DESCRIPTION

[0026] For ease of understanding, the motor stator electrical performance detection mechanism and device are described below in conjunction with embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention.

[0027] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations and positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and 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 the specific circumstances.

[0029] like Figure 1 As shown, the motor stator electrical performance detection mechanism 3 in this embodiment includes a base plate 31, an avoidance groove 32 is opened at one end of the base plate 31, and a plurality of clamps 33 are surrounded by the avoidance groove 32. The clamps 33 are fixed on the base plate 31, and the motor stator 5 is placed in the middle of the plurality of clamps 33. The clamps 33 can clamp the terminal blocks 51 on the motor stator 5 one by one. A lifting assembly 34 for driving the clamps 33 to open and close is provided above the base plate 31, and a wiring harness protective cover 35 is provided on one side of the base plate 31.

[0030] like Figure 2 As shown, the lifting assembly 34 includes a top plate 341, a cylinder 342, a lifting plate 343, an inclined block 344 and a guide column 345. The top plate 341 and the lifting plate 343 are parallel to each other, and a guide column 345 is arranged between the two. The cylinder body of the cylinder 342 is fixedly mounted on the top plate 341, and the output end of the cylinder 342 is fixedly connected to the lifting plate 343. The bottom of the lifting plate 343 is fixedly connected with a plurality of inclined blocks 344. The inclined blocks 344 correspond to the clamping jaws 33 one by one. The cylinder 342 can drive the lifting plate 343 and the inclined blocks 344 to rise and fall synchronously, wherein the inclined blocks 344 can descend to pass through the avoidance groove 32 and squeeze the clamping jaw 33 located below the inclined blocks 344 to open the clamping jaw 33.

[0031] like Figure 3 The cam 332 is fixed to the cam 333 at one end and the cam 333 is fixed to the cam 333 at the other end.

[0032] like Figure 3As shown, a bolt is fixedly connected to the inner side of the hook 3332, and a spring 336 is provided between the bolt and the fixing seat 331. Specifically, one end of the spring 336 is fixedly connected to the fixing seat 331, and the other end is fixedly connected to the bolt. When not affected by other external forces, the spring 336 can pull the claw body 333 to rotate clockwise around the pin shaft 334 until the end of the hook 3332 abuts the test probe 332. The clamping claw 33 clamps the terminal 51, that is, the terminal 51 is located between the hook 3332 and the test probe 332. Under the action of the spring 336, the distance between the hook 3332 and the test probe 332 is reduced, and the terminal 51 is clamped and fixed between the hook 3332 and the test probe 332. In the clamped state, the terminal 51 is electrically connected to the test probe 332.

[0033] like Figure 4 As shown, the device in this embodiment includes a fixing frame 1, a lifting mechanism 2, a carrying mechanism 4, and a motor stator electrical performance detection mechanism 3.

[0034] like Figure 5 As shown, the fixing frame 1 includes an instrument placement frame 11, on which a resistance tester 12, a surge tester 13 and a withstand voltage tester 14 are placed. The resistance tester 12, the surge tester 13 and the withstand voltage tester 14 are all electrically connected to the test probe 332, which is used to connect to the terminal 51 of the motor stator 5 to achieve the purpose of detecting the performance of the motor stator 5.

[0035] like Figure 6 As shown, the lifting mechanism 2 includes a fixing mechanism 21, a lifting cylinder 22, a carrier 23, and a fixing pin 24. The fixing mechanism 21 is installed on the fixing frame 1, and the lifting cylinder 22 is installed on the fixing mechanism 21. The output end of the lifting cylinder 22 is connected to the carrier 23 to lift the transport mechanism 4 installed on the carrier 23. A fixing pin 24 is provided on one side of the carrier 23.

[0036] like Figure 6 As shown, the fixing mechanism 21 includes an electrical control connector 211, a base 212 and a fixing block 213, wherein the electrical control connector 211 connects the wires of the instrument test to the test end, that is, the test probe 332 is electrically connected to the electrical control connector 211, and the test ends of the resistance tester 12, the surge tester 13 and the withstand voltage tester 14 are electrically connected to the electrical control connector 211.

[0037] like Figure 7 As shown, the carrying mechanism 4 includes a carrying body 41, a carrying plate 42 fixedly connected to the carrying body 41, a base 43 arranged on the carrying plate 42, a stator fixing ring 44 arranged on the base 43, and a clamp 45 arranged on one side of the stator fixing ring 44. The clamp 45 can extend from the inner wall of the stator fixing ring 44 toward the center thereof to clamp the motor stator 5 located in the stator fixing ring 44.

[0038] Finally, it should be noted that the above embodiments are intended only to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art will appreciate that modifications may be made to the technical solutions described in the above embodiments, or that some or all of the technical features therein may be replaced with equivalents. Such modifications or replacements do not deviate from the essence of the corresponding technical solutions within the scope of the various embodiments of the present invention.

Claims

1. A motor stator electrical performance detection mechanism, characterized in that: It includes a bottom plate, a plurality of clamping jaws arranged on the bottom plate, a top plate, a cylinder mounted on the top plate, a lifting plate connected to the output end of the cylinder, and a plurality of inclined blocks fixed to the lifting plate, wherein the inclined blocks are connected to the clamping jaws in a one-to-one correspondence; The clamp includes a fixed base, a test probe arranged on the fixed base, a claw body, and an elastic structure with one end connected to the fixed base and the other end connected to the claw body. The middle part of the claw body is rotatably connected to the fixed base through a pin shaft. The claw body includes an oblique arm located at its upper part and a curved hook located at its lower part. The curved hook is pulled by the elastic structure to abut against the test probe. The oblique block is used to press down the oblique arm to separate the curved hook from the test probe.

2. A motor stator electrical performance detection mechanism according to claim 1, characterized in that: A connection terminal is clamped between the test probe and the hook, and the connection terminal is electrically connected to the test probe.

3. The motor stator electrical performance detection mechanism according to claim 1, characterized in that: The bottom plate is provided with an avoidance groove, and a plurality of the test probes are distributed around the avoidance groove.

4. A motor stator electrical performance detection mechanism according to claim 1, characterized in that: A bolt is fixedly connected to the inner side of the hook, and one end of the elastic structure is fixed on the bolt.

5. A motor stator electrical performance detection mechanism according to claim 4, characterized in that: The elastic structure is a spring.

6. The motor stator electrical performance detection mechanism according to claim 1, characterized in that: The lower end of the inclined block is tapered.

7. The motor stator electrical performance detection mechanism according to claim 1, characterized in that: A limit block is provided on the fixing seat for limiting the rotation range of the oblique arm.

8. A device, characterized in that It comprises a fixing frame, a lifting mechanism, a carrying mechanism, and the motor stator electrical performance detection mechanism according to any one of claims 1 to 7.

9. A device according to claim 8, characterized in that The lifting mechanism includes a fixing mechanism, a lifting cylinder and a carrier. The lifting cylinder is installed on the fixing mechanism, and the output end of the lifting cylinder is connected to the carrier.

10. A device according to claim 8, characterized in that The carrying mechanism includes a carrying body, a carrying plate fixedly connected to the carrying body, a base arranged on the carrying plate, a stator fixing ring arranged on the base, and a clamp arranged on one side of the stator fixing ring. The clamp can extend from the inner wall of the stator fixing ring toward the center thereof to fix the motor stator located in the stator fixing ring.

Images