Thrust test fixture for motor magnetic tile

Abstract

The utility model relates to a thrust test fixture for a motor magnetic shoe, which comprises a bearing assembly, a motor magnetic shoe, a motor magnetic shoe, a motor magnetic shoe, a motor magnetic shoe, a motor magnetic shoe, a motor magnetic shoe and a motor magnetic shoe, and is characterized in that the bearing assembly comprises a fixture cylinder and a casing groove arranged at the top of the fixture cylinder; a test assembly, the testing assembly comprises a supporting frame, a lifting plate arranged on one side of the supporting frame in a lifting mode, a pressure sensor fixed to the bottom of the lifting plate, and a transition plate elastically arranged below the lifting plate. The test rod is elastically arranged below the transition plate; the contact head is fixed at the top of the transition plate and is matched with a pressure sensor; the thrust test fixture for the motor magnetic shoe is simple in structure, a to-be-tested casing is placed in the fixture cylinder, the lifting plate is driven by the lifting cylinder to descend, and the pressing strip abuts against the magnetic shoe on the inner side wall of the casing and applies thrust to the magnetic shoe, so that the test efficiency is improved, the consistency of thrust applied each time can be ensured, and the test efficiency is improved. And the accuracy of the test result is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to motor detection technical field, concretely relates to a motor magnetic shoe is with thrust test fixture. BACKGROUND

[0002] As Figure 1 The utility model discloses a motor magnetic shoe is with thrust test fixture, solved the defect that the efficiency of artificial detection is low and the consistency of thrust of each time cannot be guaranteed due to the different operation habits of different operators in prior art.

[0003] The magnetic shoe is pasted on the inner side wall of the casing through the glue, and in order to ensure the firmness of the adhesion and avoid the magnetic shoe from falling during the normal operation of the motor, the thrust detection needs to be carried out, that is, the rated external force is applied to the surface of the magnetic shoe to ensure that the adhesion between the magnetic shoe and the inner side wall of the casing is firm.

[0004] In the prior art, the operator needs to place the casing with the magnetic shoe on the fixture table, and then manually press the pressure rod to apply the thrust to the magnetic shoe. The manual operation is low in efficiency, cannot meet the testing needs of large quantities of motor products, and the operation habits of different operators are different, so the consistency of the thrust of each time cannot be guaranteed, and therefore the accuracy of the test results cannot be guaranteed. UTILITY MODEL CONTENTS

[0005] The utility model discloses a motor magnetic shoe is with thrust test fixture, solved the defect that the efficiency of artificial detection is low and the consistency of thrust of each time cannot be guaranteed due to the different operation habits of different operators in prior art.

[0006] In order to achieve the above purpose, the utility model adopts the technical scheme that a motor magnetic shoe is with thrust test fixture, it includes:

[0007] The bearing assembly includes a jig cylinder and a casing groove opened at the top of the jig cylinder, the casing groove is inserted with a casing, and the inner side wall of the casing is annularly pasted with a magnetic shoe.

[0008] The test assembly includes a support frame, a lifting plate arranged on one side of the support frame in a lifting manner, a pressure sensor fixed at the bottom of the lifting plate, a transition plate elastically arranged below the lifting plate, a test rod elastically arranged below the transition plate, and a contact head fixed at the top of the transition plate and matched with the pressure sensor.

[0009] When the test rod abuts against the magnetic shoe, the contact head is in contact with the pressure sensor.

[0010] Optimally, the bearing assembly further includes a pressure rod rotatably arranged on one side of the jig cylinder and a pressure head integrally connected on one side of the pressure rod, and the pressure head abuts against the upper surface of the casing.

[0011] Optimally, the test assembly further comprises a linear bearing embedded in the lifting plate, a guide column penetrating through the linear bearing, an anti-drop plate fixed at the top of the guide column, and a first spring sleeved on the guide column, the transition plate is fixed at the bottom of the guide column, the first spring is abutted between the linear bearing and the transition plate, and the diameter of the anti-drop plate is greater than that of the guide column.

[0012] Optimally, the test assembly further comprises a fixed column fixed at the bottom of the lifting plate, a carrier plate fixed at the bottom of the fixed column, and a second spring arranged between the transition plate and the test rod, the test rod penetrates through the carrier plate.

[0013] Optimally, the test rod comprises a pressing strip penetrating through the carrier plate, an anti-drop block integrally connected at the top of the pressing strip, and a spring groove opened at the top of the anti-drop block, the second spring is arranged in the spring groove, and the plan view area of the anti-drop block is greater than that of the pressing strip.

[0014] Optimally, the test assembly further comprises a support frame, a sliding rail fixed at one side of the support frame, a sliding block slidingly installed on the sliding rail, and a sliding plate fixed at the side of the sliding block away from the sliding rail, and the lifting plate is fixed at the top of the sliding plate.

[0015] Optimally, the arc center angle of the pressing strip is equal to the arc center angle of the magnetic shoe.

[0016] Thanks to the use of the above technical scheme, the motor magnetic shoe thrust test jig has the following advantages compared with the prior art:

[0017] The motor magnetic shoe thrust test jig has the following advantages compared with the prior art: BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a schematic view of a motor shell and a magnetic shoe;

[0019] Figure 2 is a structural schematic view of the motor magnetic shoe thrust test jig;

[0020] Figure 3 is a front view of the motor magnetic shoe thrust test jig;

[0021] Figure 4 is a right view of the motor magnetic shoe thrust test jig;

[0022] Figure 5 is a structural schematic view of a bearing assembly of the motor magnetic shoe thrust test jig;

[0023] Figure 6 For the utility model Figure 5 is a sectional view;

[0024] Figure 7 For the utility model test assembly partial structure schematic view;

[0025] Figure 8 For the utility part structure schematic view of another angle of the utility model test assembly;

[0026] Figure 9 For the utility model Figure 3 A place in the utility model is an enlarged view;

[0027] Figure 10 For the utility model structure schematic view of the pressing strip;

[0028] Reference signs are explained as follows:

[0029] 1, bearing assembly;11, bearing frame;12, jig cylinder;13, angle plate;14, push cylinder;15, connecting block;16, pressing rod;17, pressing head;18, casing groove;19, push column;110, return spring;

[0030] 2, test assembly;21, support frame;22, top plate;23, slide rail;24, sliding block;25, slide plate;26, lifting cylinder;27, lifting plate;28, fixed column;29, carrier plate;210, linear bearing;211, guide column;212, anti-drop plate;213, transition plate;214, first spring;215, pressure sensor;216, contact head;217, anti-drop block;218, pressing strip;219, spring groove;220, second spring. Specific implementation

[0031] The utility model will be further described in connection with the embodiment shown in the drawings.

[0032] As Figures 2-4 shown, it is the structure schematic view of motor magnetic shoe thrust test fixture of the utility model, is usually used to the magnetic shoe of motor casing inner side wall carries out thrust detection, ensures the firmness of magnetic shoe in casing inner side wall and is pasted, avoids the magnetic shoe to fall when the motor normal operation. The test fixture includes bearing assembly 1 and test assembly 2, bearing assembly 1 is used to support the motor casing to be tested, test assembly 2 is erected in the upper of bearing assembly 1, is used to the magnetic shoe of casing inner side wall and applies thrust.

[0033] As Figure 5 , 6As shown, the bearing assembly 1 comprises a bearing frame 11, a jig cylinder 12, an angle plate 13, a push cylinder 14, a connecting block 15, a pressing rod 16, a pressing head 17, a machine shell groove 18, a push column 19 and a reset spring 110. The bearing frame 11 is fixed on the motor assembly machine table by screw fastening or welding, the jig cylinder 12 is fixed on the top of the bearing frame 11, the machine shell groove 18 is opened on the top of the jig cylinder 12, and the motor machine shell to be detected is inserted into the machine shell groove 18 of the jig cylinder 12. And the opening end of the motor machine shell is arranged upward (i.e. the opening end of the motor machine shell is arranged away from the bearing frame 11), which facilitates the push test of the magnetic shoe on the inner side wall of the machine shell by the test assembly 2.

[0034] The angle plate 13 is fixed on one side of the bearing frame 11 by screw fastening, and the cylinder body of the push cylinder 14 is fixed on the top of the angle plate 13. The push column 19 is connected with the piston rod of the push cylinder 14, and the push column 19 is moved by the push cylinder 14, and then the pressing rod 16 is rotated to press the machine shell inserted into the machine shell groove 18, so as to avoid the shaking of the machine shell when the magnetic shoe is subjected to the push force, thereby affecting the accuracy of the test result.

[0035] The connecting block 15 has two, which are fixed on one side of the jig cylinder 12 close to the angle plate 13 by screw fastening, and a mounting groove is formed between the two connecting blocks 15. The pressing rod 16 is rotatably installed between the two connecting blocks 15 and located in the mounting groove. The reset spring 110 is fixed between the pressing rod 16 and the jig cylinder 12. By arranging the reset spring 110, the pressing rod 16 is rotated to press the machine shell inserted into the machine shell groove 18. The pressing head 17 is integrally connected on one side of the pressing rod 16 away from the reset spring 110, which is used to press the machine shell.

[0036] The push cylinder 14 drives the push column 19 to move forward to contact the push column 19 with the pressing rod 16, and continues to move forward to compress and deform the reset spring 110. At this time, the pressing rod 16 rotates counterclockwise, and the pressing rod 16 drives the pressing head 17 to move away from the top of the motor machine shell; the operator inserts a new motor machine shell into the machine shell groove 18, and the push cylinder 14 drives the push column 19 to reset. Under the resetting action of the reset spring 110, the pressing rod 16 rotates clockwise, and the pressing head 17 is pressed on the upper surface of the machine shell again, so as to avoid the shaking of the machine shell when the magnetic shoe is subjected to the push force in the subsequent test, thereby affecting the accuracy of the test result (the push column 19 is not fixed with the pressing rod 16, and the pressing action of the pressing rod 16 is realized by the resetting of the reset spring 110).

[0037] The test assembly 2 is arranged above the bearing assembly 1 and is used to apply a pushing force to the magnetic tiles on the inner side wall of the casing. The test assembly 2 comprises a support frame 21, a top plate 22, a sliding rail 23, a sliding block 24, a sliding plate 25, a lifting cylinder 26, a lifting plate 27, a fixing column 28, a load plate 29, a linear bearing 210, a guide column 211, an anti-falling plate 212, a transition plate 213, a first spring 214, a pressure sensor 215, a contact head 216, an anti-falling block 217, a pressing strip 218, a spring groove 219, and a second spring 220. The support frame 21 is fixed on the machine table of the motor assembly by screw fastening and is located on one side of the bearing frame 11. The top plate 22 is fixed on the top of the support frame 21 and is connected to the support frame 21 by a diagonal brace to improve the structural strength between the top plate 22 and the support frame 21.

[0038] The sliding rail 23 is fixed on the side of the support frame 21 close to the bearing frame 11 by screw fastening. The sliding block 24 is slidingly installed on the sliding rail 23. The sliding plate 25 is fixed on the side of the sliding block 24 away from the sliding rail 23. The lifting plate 27 is fixed on the top of the sliding plate 25. The cylinder body of the lifting cylinder 26 is fixed on the top plate 22. The piston rod of the lifting cylinder 26 penetrates through the top plate 22 and is connected to the lifting plate 27. The lifting plate 27 is driven to move up and down by the lifting cylinder 26, thereby applying a pushing force to the magnetic tiles in the motor casing.

[0039] When the lifting cylinder 26 drives the lifting plate 27 to move, the sliding plate 25 is synchronously moved. The movement of the lifting plate 27 is guided by the sliding rail 23 and the sliding block 24 arranged in cooperation, thereby improving the accuracy of the test results.

[0040] As shown in Figures 7-9 The linear bearing 210 is embedded in the lifting plate 27. The guide column 211 penetrates through the linear bearing 210. The top of the guide column 211 is fixed with the anti-falling plate 212. The bottom of the guide column 211 is fixed with the transition plate 213. The diameter of the anti-falling plate 212 is larger than the diameter of the guide column 211, so as to avoid the guide column 211 and the transition plate 213 from falling out of the linear bearing 210.

[0041] The first spring 214 is sleeved on the guide column 211 and is arranged between the linear bearing 210 and the transition plate 213 on both sides of the first spring 214. The first spring 214 is used to reset the transition plate 213, so as to ensure that there is enough gap between the lifting plate 27 and the transition plate 213 for the next test. The pressure sensor 215 is fixed on the bottom of the lifting plate 27. The contact head 216 is fixed on the top of the transition plate 213 and cooperates with the pressure sensor 215.

[0042] The fixed column 28 is fixed at the bottom of the lifting plate 27, and the carrier plate 29 is fixed at the top of the fixed column 28. The test rod is arranged in the carrier plate 29, and the second spring 220 is arranged between the test rod and the transition plate 213. When the test rod applies a pushing force to the magnetic shoe in the motor housing, the second spring 220 is compressed and deformed to buffer the structure of the magnetic shoe, so that the rigid extrusion damage to the magnetic shoe is avoided.

[0043] As shown in the structure diagram of the test rod, the test rod comprises a anti-drop block 217, a pressing strip 218 and a spring groove 219. Figure 10 The pressing strip 218 penetrates through the carrier plate 29, and the anti-drop block 217 is integrally connected to the top of the pressing strip 218. The anti-drop block 217 has an area greater than that of the pressing strip 218 in the top view, so that the pressing strip 218 is supported and limited to avoid falling off the carrier plate 29. The spring groove 219 is arranged at the top of the anti-drop block 217, and the second spring 220 is arranged in the spring groove 219 and is limited when compressed.

[0044] The test rod is arranged in a ring and has four test rods corresponding to the magnetic shoes in the motor housing. The pressing strip 218 is in the shape of a sector, and the central angle of the pressing strip 218 is equal to that of the magnetic shoe. When the pushing force is applied to the magnetic shoe, sufficient contact area with the surface of the magnetic shoe is ensured, and the four test rods move downward synchronously, so that the pushing force applied to the magnetic shoe on the inner side wall of the motor housing is consistent, and the accuracy of the test result is improved.

[0045] The working principle of the motor magnetic shoe thrust test jig is as follows:

[0046] First, the motor housing with magnetic shoes is inserted into the housing groove 18 of the jig cylinder 12, and the opening end of the motor housing is kept upward. Under the action of the return spring 110, the housing is pressed by the pressing head 17, so that the motor housing is prevented from shaking when the pushing force is applied to the magnetic shoe, thereby affecting the accuracy of the test result.

[0047] The lifting cylinder 26 drives the lifting plate 27 to descend to the pressing strip 218, and the lifting cylinder 26 continues to work. The second spring 220 is compressed and deformed to contact the pressure sensor 215 through the contact head 216. The current pushing force applied to the magnetic shoe can be obtained through the pressure sensor 215, and the second spring 220 can avoid rigid extrusion damage to the magnetic shoe.

[0048] After a period of time, the magnetic shoe in the motor housing is photographed by the CCD camera, so that whether the position of the magnetic shoe on the inner side wall of the motor housing changes under the action of the rated pushing force is determined, and whether the current magnetic shoe is reliably attached is judged.

[0049] The above examples are only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and to implement it, and cannot limit the protection scope of the present application. Any equivalent changes or modifications made according to the spirit and essence of the present application shall be covered within the protection scope of the present application.

Claims

1. A thrust testing fixture for motor magnets, characterized in that it The utility model relates to a kind of test device, including: Bearing assembly (1), the bearing assembly (1) includes jig cylinder (12) and the shell slot (18) opened in the top of jig cylinder (12), shell is inserted in the shell slot (18), and the inner side wall of the shell is annularly pasted with magnetic tile; Test assembly (2), the test assembly (2) includes support frame (21), liftablely arranged in the one side of support frame (21) lifting plate (27), fixed in the bottom of lifting plate (27) pressure sensor (215), elastically arranged in the below of lifting plate (27) transition plate (213), elastically arranged in the below of transition plate (213) test rod and fixed in the top of transition plate (213) and the contact head (216) matched with pressure sensor (215); When the test rod and magnetic tile abut, the contact head (216) and pressure sensor (215) are contacted.

2. The thrust test fixture for a motor magnetic tile according to claim 1, wherein: The bearing assembly (1) further includes rotatingly arranged in the one side of jig cylinder (12) pressure rod (16) and integrally connected in the one side of pressure rod (16) pressure head (17), and the pressure head (17) is resisted on the upper surface of shell.

3. The thrust test fixture for a motor magnetic tile of claim 1, wherein: The test assembly (2) further includes linear bearing (210) embedded in lifting plate (27), guide column (211) penetrating linear bearing (210), anti-drop plate (212) fixed in the top of guide column (211) and first spring (214) sleeved on guide column (211), and the transition plate (213) is fixed in the bottom of guide column (211), the first spring (214) is resisted between linear bearing (210) and transition plate (213), and the diameter of anti-drop plate (212) is greater than the diameter of guide column (211).

4. The thrust test fixture for a motor magnetic tile of claim 1, wherein: The test assembly (2) further includes fixed column (28) fixed in the bottom of lifting plate (27), carrier plate (29) fixed in the bottom of fixed column (28) and second spring (220) arranged between transition plate (213) and test rod, and the test rod penetrates carrier plate (29).

5. The thrust test fixture for a motor magnet tile of claim 4, wherein: The test rod includes press strip (218) penetrating carrier plate (29), anti-drop block (217) integrally connected in the top of press strip (218) and spring slot (219) opened in the top of anti-drop block (217), the second spring (220) is arranged in spring slot (219), and the plan view area of anti-drop block (217) is greater than the plan view area of press strip (218).

6. The thrust test fixture for a motor magnet tile of claim 1, wherein: The test assembly (2) further includes support frame (21), slide rail (23) fixed in the one side of support frame (21), sliding block (24) slidingly installed on slide rail (23) and sliding plate (25) fixed in the one side of sliding block (24) away from slide rail (23), and the lifting plate (27) is fixed in the top of sliding plate (25).

7. The thrust test fixture for a motor magnet tile of claim 5, wherein: The arc center angle of the press strip (218) is equal to the arc center angle of the magnetic tile.

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