Stator performance testing device

Abstract

The invention relates to the technical field of motor manufacturing, and discloses a stator performance testing device. The stator performance testing device comprises a workbench, a positioning structure, a jacking structure and a test clamping assembly, a placement seat is arranged on the workbench, a first through hole is formed in the bottom of the placement seat, and a stator is placed in the placement seat; the positioning structure is telescopically arranged on the workbench, the jacking structure comprises a jacking assembly and a positioning fixing piece, the jacking assembly is arranged on the workbench, the positioning fixing piece is arranged on the jacking assembly, the placing seat is located between the positioning structure and the positioning fixing piece, and the diameter of the first through hole is larger than that of the positioning fixing piece and smaller than that of the stator; the jacking assembly drives the positioning fixing piece to stretch into the first through hole and be inserted into the stator iron core to jack the stator to a preset height position. The test clamping assembly is arranged on the positioning structure, is located on one side of the positioning structure, and is used for clamping the terminal to test the performance of the stator. Automatic testing is achieved, the testing efficiency is improved, the comprehensive testing rate is increased, and the testing accuracy is improved.

Description

Technical Field

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

[0002] The motor stator is an important component of motors such as generators and starters. The motor stator is an important part of the electric motor. The motor stator consists of three parts: the stator core, the stator winding and the frame. The main function of the motor stator is to generate a rotating magnetic field, and the main function of the rotor is to be cut by the magnetic lines of force in the rotating magnetic field to generate (output) current. The motor stator usually needs to be tested after production.

[0003] At present, motor stator manufacturers all use manual labor to test the electrical performance of motor stators, which has low test efficiency and manual testing may result in false detection and missed detection. Summary of the invention

[0004] The main purpose of the present invention is to provide a stator performance testing device, aiming to solve the technical problems that the existing stator performance testing device is manually tested, resulting in low test efficiency and the existence of false detection and missed detection.

[0005] To achieve the above object, the present invention provides a stator performance testing device, which includes a workbench, a placement seat is provided on the workbench, a first through hole is provided at the bottom of the placement seat, and the stator is placed in the placement seat;

[0006] A positioning structure, which is telescopically arranged on the workbench and is used for positioning the stator;

[0007] A lifting structure, wherein the lifting structure comprises a lifting assembly and a positioning fixture, wherein the lifting assembly is arranged on the workbench, wherein the positioning fixture is arranged on the output end of the lifting assembly, wherein the placement seat is located between the positioning structure and the positioning fixture, wherein the diameter of the first through hole is larger than the diameter of the positioning fixture and smaller than the diameter of the stator, wherein the lifting assembly drives the positioning fixture to extend into the first through hole and be inserted into the stator core, and wherein the lifting structure is used to lift the stator to a predetermined height position;

[0008] A test clamping assembly is provided on the positioning structure and is located on one side of the positioning structure. The test clamping assembly is used to clamp the terminal to test the stator performance.

[0009] Optionally, in one embodiment, the positioning fixing member is a positioning shaft, and the positioning shaft is inserted into a through hole of the stator core to form a fixation.

[0010] Optionally, in one embodiment, the lifting assembly includes a first driving member and a telescopic table, one end of the first driving member is arranged on the workbench, the other end of the first driving member is arranged on the telescopic table, the positioning fixing member is arranged on the telescopic table, and the first driving member drives the telescopic table to perform an ascending movement or a descending movement.

[0011] Optionally, in one embodiment, the telescopic table includes a fixed plate, a first guide rod and a second guide rod, one end of the first guide rod and one end of the second guide rod are both arranged on the workbench, the other end of the first guide rod and the other end of the second guide rod are respectively slidably arranged at opposite ends of the fixed plate, and the output end of the first driving member is arranged on the fixed plate.

[0012] Optionally, in one embodiment, the positioning structure includes a second driving member and a positioning assembly, the second driving member is arranged on the workbench, the positioning assembly is arranged at the output end of the second driving member, and the second driving member drives the positioning assembly to perform an upward movement or a downward movement.

[0013] Optionally, in one embodiment, the positioning assembly includes a fixed frame, a third guide rod, an elastic reset member and a pressure head, the fixed frame is arranged on the output end of the second driving member, one end of the third guide rod is arranged on the fixed frame, the elastic reset member can be telescopically mounted on the third guide rod, the pressure head can be slidably mounted on the third guide rod, and the pressure head is connected to the elastic reset member.

[0014] Optionally, in one embodiment, at least four terminals are provided, and the test clamping assembly includes at least four test pieces, each of the test pieces is provided on the positioning structure, and each of the test pieces clamps each of the terminals respectively.

[0015] Optionally, in one embodiment, the test piece includes a third drive piece and a test clip, the test clip is arranged on the output end of the third drive piece, the third drive piece is arranged on the positioning structure, and the test clip clamps the terminal; and / or, the stator performance testing device also includes a grounding component, the grounding component includes a fourth drive piece and a grounding contact, the fourth drive piece is arranged on the positioning structure, the grounding contact is arranged on the output end of the fourth drive piece, and the grounding contact is connected to the stator core.

[0016] Optionally, in one embodiment, the positioning fixing member is a positioning shaft, one end of the positioning shaft is arranged on the lifting assembly, and the outer peripheral side wall of the other end of the positioning shaft is provided with a plurality of evenly distributed elastic members, and the positioning shaft is provided with one end of the elastic member inserted into the through hole of the stator core, and the plurality of elastic members are pressed against the inner side wall of the positioning core to form a fixation.

[0017] Optionally, in one embodiment, the outer peripheral side wall of the other end of the positioning shaft is provided with a second through hole corresponding to each of the elastic members for accommodating the elastic members, and the elastic members are in an "S"-shaped structure.

[0018] In the technical solution provided by the present invention, a placement seat with a first through hole is provided on a workbench, the stator is placed in the placement seat, and then a positioning structure is telescopically arranged on the workbench, and at the same time, a test clamping assembly is arranged on the positioning structure, so that the positioning structure drives the test clamping assembly to move up or down while performing an ascending or descending movement, thereby reducing the number of driving parts, so that the structure design of the stator performance test device is compact, the structure is simple, and the working efficiency is high. The performance test of the stator can be achieved while the positioning of the stator is achieved, and the lifting structure is arranged on the workbench, and the lifting structure includes a lifting assembly and a positioning The fixing part and the lifting component are arranged on the workbench, the positioning fixing part is arranged on the output end of the lifting component, the placement seat is located between the positioning structure and the positioning fixing part, the diameter of the first through hole is larger than the diameter of the positioning fixing part and smaller than the diameter of the stator, the lifting component drives the positioning fixing part to extend into the first through hole and insert into the stator core, so that the lifting component can lift the stator to a predetermined height position alone, and then the positioning structure and the test clamping component descend, the positioning structure positions the stator, and the test clamping component clamps the terminal for performance testing, thereby realizing automated testing, improving testing efficiency, improving comprehensive testing rate, and improving testing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] One or more embodiments are exemplarily described by corresponding drawings, which do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and the figures in the drawings do not constitute proportional limitations unless otherwise stated.

[0020] Figure 1 This is a structural schematic diagram of a stator performance testing device installed on a workbench according to an embodiment of the present invention;

[0021] Figure 2 for Figure 1 A partial enlarged view of the middle A;

[0022] Figure 3 It is a structural schematic diagram of a stator performance testing device according to an embodiment of the present invention;

[0023] Figure 4 A schematic plan view of a stator performance testing device according to an embodiment of the present invention from a first viewing angle;

[0024] Figure 5 for Figure 4 Sectional view at the middle BB;

[0025] Figure 6 for Figure 4 A partial enlarged view of point C in the middle;

[0026] Figure 7 A schematic plan view of a test structure and a positioning structure according to an embodiment of the present invention;

[0027] Figure 8 for Figure 7 Sectional view at DD in the middle;

[0028] Fig. 9 for Figure 7 A partial enlarged view of point E in the middle;

[0029] Among them, 100, stator performance test device; 10, workbench; 101, frame; 102, turntable; 103, placement seat; 104, first through hole; 20, positioning structure; 201, second drive member; 202, positioning assembly; 203, fixed frame; 204, third guide rod; 205, elastic reset member; 206, pressure head; 207, fixed connection member; 30, lifting structure; 31, positioning fixture; 32, lifting assembly; 321, first drive member; 322, telescopic table; 323, fixed plate; 324, first guide rod; 325, second guide rod; 328, guide sleeve; 40, test clamping assembly; 401, test member; 402, third drive member; 403, test clamp; 50, grounding assembly; 501, fourth drive member; 502, grounding contact; 600, stator; 60, stator core; 70, terminal. DETAILED DESCRIPTION

[0030] In order to facilitate the understanding of the present invention, the present invention is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on another element, or there can be one or more centered elements therebetween. When an element is described as "connected" to another element, it can be directly connected to another element, or there can be one or more centered elements therebetween. The terms "vertical", "horizontal", "left", "right", "inside", "outside" and similar expressions used in this specification are only for illustrative purposes. In the description of the present invention, the terms "first" and "second" are used only for descriptive purposes and cannot be understood as indicating relative importance or implicitly indicating the number of technical features indicated. Therefore, unless otherwise specified, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features; the meaning of "multiple" is two or more. The term "include" and any variation thereof means non-exclusive inclusion, and one or more other features, integers, steps, operations, units, components and / or combinations thereof may be present or added.

[0031] In addition, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or a connection between two components. All technical and scientific terms used in this specification have the same meaning as those generally understood by technicians in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this specification includes any and all combinations of one or more related listed items.

[0032] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0033] Please refer to Figures 1 to 9 , an embodiment of the present invention discloses a stator performance testing device 100 .

[0034] In one embodiment, if Figures 1 to 9As shown, the stator performance test device 100 includes a workbench 10, a positioning structure 20, a lifting structure 30 and a test clamping assembly 40. The stator performance test device 100 is used for the performance test of the stator 600. The stator 600 includes a stator core 60, a winding group and a terminal 70. The winding group is wound on the stator core 60. The terminal 70 is inserted on the stator core 60. The performance of the stator 600 is tested through the terminal 70. The performance test of the stator 600 is one or more of an electrical strength test, a DC resistance test, a turn-to-turn insulation test, and an inductance test, all of which are electrical performance tests. Therefore, when the performance test of the stator 600 is performed, insulation is required.

[0035] The workbench 10 includes a frame 101 and a turntable 102. The turntable 102 can be rotatably set on the frame 101 and protrude from the frame 101, so that the turntable 102 maintains a certain distance from the frame 101 in the vertical direction. One end of the placement seat 103 passes through the turntable 102 and is set on the turntable 102. The bottom of the placement seat 103 is provided with a first through hole 104. The first through hole 104 is used for the jacking structure 30 to extend into or out of the placement seat 103, so as to facilitate the jacking structure 30 to lift the stator 600. The material of the placement seat 103 is metal.

[0036] The positioning structure 20 is used to position the stator 600 , and the positioning structure 20 can be telescopically disposed on the frame 101 .

[0037] The lifting structure 30 is used to lift the stator 600 to a predetermined height position. The lifting structure 30 includes a lifting component 32 and a positioning fixture 31. One end of the lifting component 32 is arranged on the frame 101. The positioning fixture 31 is arranged on the output end of the lifting component 32, so that the lifting component 32 can drive the positioning fixture 31 to move upward or downward, and the placement seat 103 is located between the positioning structure 20 and the positioning fixture 31, so that the stator 600 can be positioned and pressed after the stator 600 is lifted, and the diameter of the first through hole 104 is larger than that of the positioning fixture 31. The diameter is smaller than the diameter of the stator core 60, so that the positioning fixture 31 can extend or extend into the first through hole 104, and the stator 600 can be placed on the placement seat 103 without falling, so that the lifting assembly 32 can drive the positioning fixture 31 to extend into the first through hole 104 and insert it into the stator core 60 of the stator 600 placed in the placement seat 103 to form a fixation, thereby lifting the stator 600 to a predetermined height alone, avoiding lifting the placement seat 103 together, resulting in failure to insulate the stator 600, resulting in inaccurate test results or causing a short circuit. The material of the positioning fixture 31 is an insulating material.

[0038] The test clamping assembly 40 is disposed on the positioning structure 20 and is located on one side of the positioning structure 20, so that when the positioning structure 20 descends, it drives the test clamping assembly 40 to descend to the stator 600, so that the test clamping assembly 40 can clamp the terminal 70 to test the performance of the stator 600. Automated testing is achieved, and test efficiency, comprehensive test rate, and test accuracy are improved.

[0039] In one embodiment, the stator core 60 is inserted with at least four terminals 70, and the test clamping assembly 40 includes at least four test pieces 401, each of which is disposed on the positioning structure 20, and each of which clamps each terminal 70 for performance testing. In this embodiment, the number of the terminals 70 and the test pieces 401 is not specifically limited, and the number of the terminals 70 and the test pieces 401 can be 1, 2, 3, 4, 5, 6, 7, etc.

[0040] Specifically, the test piece 401 includes a third driving piece 402 and a test clamp 403. The third driving piece 402 is arranged on the positioning structure 20, so that the positioning structure 20 drives the third driving piece 402 to descend while performing a descending motion. The test clamp 403 is arranged at the output end of the third driving piece 402, so that the third driving piece 402 can drive the test clamp 403 to clamp the terminal 70 for performance testing, or release the terminal 70 after the performance test is completed. The third driving piece 402 can be a cylinder.

[0041] In one embodiment, the stator performance test device 100 further includes a grounding assembly 50, which includes a fourth driving member 501 and a grounding contact 502. The fourth driving member 501 is arranged on the positioning structure 20, so that when the positioning structure 20 descends, the grounding assembly 50 is driven to descend at the same time, so that the grounding assembly 50 can be grounded to the stator 600. The grounding contact 502 is arranged on the output end of the fourth driving member 501. When the positioning structure 20 descends, the grounding assembly 50 is simultaneously lowered to the vicinity of the stator 600, and then the fourth driving member 501 drives the grounding contact 502 to contact the stator core 60 to achieve grounding connection, so as to reduce the harm of the current to the equipment and personnel. Grounding can effectively prevent electric shock accidents and protect personal safety. The test structure and the grounding assembly 50 are arranged on the positioning structure 20 at the same time, so that the positioning structure 20 can drive the test structure and the grounding assembly 50 to descend to the vicinity of the stator 600 while performing the descending movement. There is no need for one structure to correspond to one driving member, so that the stator performance test device 100 has a compact structural design, a simple structure, and high working efficiency.

[0042] In one embodiment, the positioning fixing member 31 is a positioning shaft, one end of which is arranged on the output end of the lifting assembly 32, and the other end of the positioning shaft is inserted into the through hole of the stator core 60 to form a fixation, so that the lifting structure 30 can lift the stator 600 alone to achieve insulation of the stator 600.

[0043] In another embodiment, a plurality of uniformly distributed elastic members (not shown) are arranged on the outer side wall of one end of the positioning shaft inserted into the stator core 60, and a second through hole (not shown) for accommodating the elastic member is arranged on the outer side wall of one end of the positioning shaft inserted into the stator core 60 at a position corresponding to each elastic member, and the elastic member is in an "S"-shaped structure, and the opposite ends of the elastic member are respectively arranged at the opposite ends of the second through hole. The elastic member is in an "S"-shaped structure so that the elastic member has a first protrusion and a second protrusion, and the first protrusion faces the stator. The iron core 60 is raised, and the second raised portion is raised toward the inside of the positioning shaft, so that when the positioning shaft provided with the elastic member is inserted into the through hole of the stator iron core 60, the first raised portion protrudes from the second through hole and presses against the inner wall of the stator iron core 60, thereby fixing the stator iron core 60 on the positioning shaft. The elastic member is made of elastic material, so that the elastic member of the "S"-shaped structure has better elasticity, so that the positioning shaft can be fixed on stators 600 of different sizes within a certain range, providing versatility of the stator performance testing device 100.

[0044] In one embodiment, if Figure 3-Figure 6 As shown, the lifting assembly 32 includes a first driving member 321 and a telescopic platform 322. One end of the first driving member 321 is arranged on the workbench 10, and the other end of the first driving member 321 is arranged on the telescopic platform 322. The positioning fixing member 31 is arranged on the telescopic platform 322. The first driving member 321 drives the telescopic platform 322 to move upward or downward. The first driving member 321 can be a cylinder. In the working state, the first driving member 321 drives the telescopic platform 322 to rise while driving the positioning fixing member 31 to rise, so that the positioning fixing member 31 The stator 600 placed in the placement seat 103 can be lifted by extending into the placement seat 103 through the first through hole 104, and the material of the positioning fixing member 31 is an insulating material, so that the stator 600 is insulated to improve the accuracy of the test performance; when the test is completed, the first driving member 321 drives the telescopic platform 322 to move downward and drives the positioning fixing member 31 to descend, thereby driving the stator 600 to descend into the placement seat 103, and as the positioning fixing member 31 continues to descend, the positioning fixing member 31 withdraws from the stator core 60.

[0045] Exemplarily, the first driving member 321 may be a cylinder.

[0046] Furthermore, the telescopic table 322 includes a fixed plate 323, a first guide rod 324 and a second guide rod 325, one end of the first guide rod 324 and one end of the second guide rod 325 are set on the frame 101 through a connecting plate, the other end of the first guide rod 324 and the other end of the second guide rod 325 are respectively slidably set on the opposite ends of the fixed plate 323, one end of the first driving member 321 is fixed to the connecting plate, and the output end of the first driving member 321 is set on the fixed plate 323, so that the first driving member 321 can drive the fixed plate 323 to slide along the first guide rod 324 and the second guide rod 325, thereby realizing the lifting structure 30 to make an ascending or descending movement.

[0047] Specifically, guide sleeves 328 are correspondingly provided at the opposite ends of the fixed plate 323, and the first guide rod 324 and the second guide rod 325 pass through the guide sleeves 328 respectively, so that the fixed plate 323 can slide along the first guide rod 324 and the second guide rod 325. The first guide rod 324 and the second guide rod 325 are provided to realize double-track guiding, thereby improving the stability of the lifting structure 30 when lifting or lowering.

[0048] In one embodiment, the positioning structure 20 includes a second driving member 201, a fixed connecting member 207 and a positioning assembly 202, one end of the fixed connecting member 207 is vertically arranged on the frame 101, the second driving member 201 is arranged on the other end of the fixed connecting member 207, and the positioning assembly 202 is arranged on the output end of the second driving member 201. The power source of the second driving member 201 is pneumatic, so that the second driving member 201 can drive the positioning assembly 202 to move upward or downward.

[0049] Furthermore, the positioning assembly 202 includes a fixed frame 203, a third guide rod 204, an elastic reset member 205 and a pressure head 206. The fixed frame 203 is arranged on the output end of the second driving member 201, one end of the third guide rod 204 is vertically arranged on the fixed frame 203, and the other end of the third guide rod 204 faces the placement seat 103. The elastic reset member 205 is telescopically sleeved on the other end of the third guide rod 204, and the pressure head 206 is slidably sleeved on the third guide rod 204, and the pressure head 206 is connected to the elastic reset member 205, so that the elastic reset member 205 can drive the pressure head 206 to retract within a certain range, so as to avoid the second driving member 201 from exceeding the descending stroke, resulting in excessive pressure on the pressure head 206 pressing on the stator core 60 and damaging the stator core 60. At the same time, the positioning assembly 202 positions the stator 600 to prevent the stator 600 from tilting after being lifted.

[0050] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may also be combined, the steps may be implemented in any order, and there are many other changes in different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity. Although the present invention has been described in detail with reference to the above embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the above embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A stator performance test device, installed on a workbench, the workbench is provided with a placement seat, the stator comprises a stator core and a terminal, the terminal is inserted into the stator core, characterized in that: The stator performance test device includes: A first through hole is provided at the bottom of the placement seat, and the stator is placed in the placement seat; A positioning structure, which is telescopically arranged on the workbench and is used for positioning the stator; A lifting structure, wherein the lifting structure comprises a lifting assembly and a positioning fixture, wherein the lifting assembly is arranged on the workbench, wherein the positioning fixture is arranged on the output end of the lifting assembly, wherein the placement seat is located between the positioning structure and the positioning fixture, wherein the diameter of the first through hole is larger than the diameter of the positioning fixture and smaller than the diameter of the stator, wherein the lifting assembly drives the positioning fixture to extend into the first through hole and be inserted into the stator core, and wherein the lifting structure is used to lift the stator to a predetermined height position; A test clamping assembly is provided on the positioning structure and is located on one side of the positioning structure. The test clamping assembly is used to clamp the terminal to test the stator performance.

2. The stator performance testing device according to claim 1, characterized in that: The positioning fixing member is a positioning shaft, and the positioning shaft is inserted into the through hole of the stator core to form a fixation.

3. The stator performance testing device according to claim 1, characterized in that: The lifting assembly includes a first driving member and a telescopic table, one end of the first driving member is arranged on the workbench, the other end of the first driving member is arranged on the telescopic table, the positioning fixing member is arranged on the telescopic table, and the first driving member drives the telescopic table to move upward or downward.

4. The stator performance testing device according to claim 3, characterized in that: The telescopic table includes a fixed plate, a first guide rod and a second guide rod, one end of the first guide rod and one end of the second guide rod are both arranged on the workbench, the other end of the first guide rod and the other end of the second guide rod are respectively slidably arranged at opposite ends of the fixed plate, and the output end of the first driving member is arranged on the fixed plate.

5. The stator performance testing device according to claim 1, characterized in that: The positioning structure includes a second driving member and a positioning assembly. The second driving member is arranged on the workbench. The positioning assembly is arranged at the output end of the second driving member. The second driving member drives the positioning assembly to perform an ascending motion or a descending motion.

6. The stator performance testing device according to claim 5, characterized in that: The positioning assembly includes a fixed frame, a third guide rod, an elastic reset member and a pressure head. The fixed frame is arranged on the output end of the second driving member, one end of the third guide rod is arranged on the fixed frame, the elastic reset member can be telescopically mounted on the third guide rod, the pressure head can be slidably mounted on the third guide rod, and the pressure head is connected to the elastic reset member.

7. The stator performance testing device according to claim 1, characterized in that: At least four terminals are provided, and the test clamping assembly includes at least four test pieces. Each of the test pieces is provided on the positioning structure, and each of the test pieces clamps each of the terminals respectively.

8. The stator performance testing device according to claim 7, characterized in that: The test piece includes a third driving piece and a test clip, wherein the test clip is arranged on the output end of the third driving piece, the third driving piece is arranged on the positioning structure, and the test clip clamps the terminal; And / or, the stator performance testing device also includes a grounding component, the grounding component includes a fourth driving member and a grounding contact, the fourth driving member is arranged on the positioning structure, the grounding contact is arranged on the output end of the fourth driving member, and the grounding contact is connected to the stator core.

9. The stator performance testing device according to claim 1, characterized in that: The positioning fixing member is a positioning shaft, one end of which is arranged on the lifting assembly, and the outer peripheral side wall of the other end of the positioning shaft is provided with a plurality of evenly distributed elastic members, and one end of the positioning shaft provided with the elastic member is inserted into the through hole of the stator core, and the plurality of elastic members are pressed against the inner side wall of the positioning core to form a fixation.

10. The stator performance testing device according to claim 9, characterized in that: The outer peripheral side wall of the other end of the positioning shaft is respectively provided with a second through hole corresponding to each of the elastic members to accommodate the elastic members, and the elastic members are in an "S"-shaped structure.

Images