A motor test bench test machine tool

Abstract

This utility model relates to the field of motor testing equipment, and more particularly to a motor test bench fixture, including a pushing device, a fixture frame, and a floating joint. The pushing device is provided on the fixture frame, and the rear cover of the motor under test is placed inside the fixture frame. The driving end of the pushing device is connected to the floating joint, and the front cover of the test machine is connected to the floating joint. The pushing device drives the front cover of the test machine to move closer to the rear cover of the motor under test. The floating joint can compensate for the deviation during the fitting process between the front cover of the test machine and the rear cover of the motor under test, so that the mating surfaces of the two are completely in contact, avoiding the front cover of the test machine from making hard contact with the rotor bearing inside the rear cover of the motor under test, thereby preventing damage to the bearing. After the front cover of the test machine and the rear cover of the motor under test are pressed tightly together by the pushing device and the floating joint, an external setting is used to conduct an electrical test.

Description

Technical Field

[0001] This utility model relates to the field of motor testing equipment, and in particular to a motor test bench testing fixture. Background Technology

[0002] In the current power-on testing of motors, workers need to place and fix the motor in place, then assemble the test machine front cover onto the rear cover of the motor under test to complete the pre-assembly for testing. Afterwards, power is supplied to the motor interface for performance testing. However, in the existing power-on testing process, workers lack effective tooling to secure the motor during operation. Furthermore, during the assembly of the test machine front cover, incorrect angles can easily cause the front cover to make hard contact with the rotor bearing inside the rear cover of the motor under test, resulting in damage to the motor's internal structure. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a motor test bench fixture that facilitates motor testing and avoids contact damage during the assembly of the test cover.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a test fixture for a motor test bench, including a pushing device, a fixture frame and a floating joint. The pushing device is provided on the fixture frame, and the rear cover of the motor to be tested is placed inside the fixture frame. The driving end of the pushing device is connected to the floating joint, and the front cover of the test machine is connected to the floating joint. The pushing device drives the front cover of the test machine to approach the rear cover of the motor to be tested.

[0005] Furthermore, the floating joint includes a fixed joint and a connecting joint. The fixed joint is connected to the drive end of the pushing device, the connecting joint is floatingly connected to the fixed joint, and the connecting joint is detachably connected to the test machine front cover.

[0006] Furthermore, the connecting joint includes a stud and a nut, and the front cover of the test machine has a through hole in the middle; the stud passes through the through hole of the front cover of the test machine, and the nut is locked at the end of the stud and abuts against the edge of the through hole of the front cover of the test machine.

[0007] Furthermore, a buffer layer is provided on the side of the nut that abuts against the edge of the through hole of the test cover.

[0008] Furthermore, the pushing device is a pushing cylinder.

[0009] Furthermore, the tooling frame includes an upper tooling plate, a lower tooling plate, and a support column, with the upper tooling plate and the lower tooling plate connected by the support column; the pushing device is located on the upper tooling plate, and the lower tooling plate is provided with a positioning block, the positioning block being provided with a positioning groove adapted to the rear cover of the motor to be tested.

[0010] Furthermore, the fixed joint is movably connected to the drive end of the pushing device.

[0011] Furthermore, the fixed connector is sleeved with the driving end of the pushing device, and the driving end of the pushing device is provided with a moving groove along its length direction. The moving groove is provided with a plurality of locking grooves perpendicular to its length direction at intervals. The fixed connector is provided with a locking block, and the locking block moves along the moving groove and is pressed into the locking groove.

[0012] Furthermore, the card block is provided with a positioning protrusion, and the card slot is provided with a positioning groove that cooperates with the positioning protrusion.

[0013] Furthermore, the positioning block is provided with a protective pad layer.

[0014] The beneficial effects of this utility model are as follows: the floating joint can compensate for the deviation in the process of fitting the front cover of the test machine and the rear cover of the motor under test, so that the mating surfaces of the two are completely in contact, avoiding the front cover of the test machine from hard contacting the rotor bearing inside the rear cover of the motor under test, thereby causing damage to the bearing; after the front cover of the test machine and the rear cover of the motor under test are pressed together by the pushing device and the floating joint, the power-on test is performed by the external setting. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the motor test bench testing fixture according to a specific embodiment of the present utility model;

[0016] Figure 2 This is a structural schematic diagram of the motor test bench fixture from another perspective, which is a specific embodiment of the present utility model.

[0017] Figure 3 A schematic diagram of the drive end and fixed joint of the pushing device of the motor test bench testing fixture according to a specific embodiment of this utility model;

[0018] Figure 4 A schematic diagram of the locking block and positioning protrusion of the fixing joint of the motor test bench testing fixture according to a specific embodiment of this utility model.

[0019] Label Explanation:

[0020] 1. Pushing device; 11. Moving groove; 12. Snap-fit ​​groove; 13. Positioning groove; 2. Tooling frame; 21. Upper tooling plate; 22. Lower tooling plate; 23. Support column; 24. Positioning block; 3. Floating joint; 31. Fixed joint; 311. Snap-fit ​​block; 312. Positioning protrusion; 32. Connecting joint. Detailed Implementation

[0021] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0022] Please refer to Figures 1 to 4A test fixture for a motor test bench includes a pushing device 1, a fixture frame 2, and a floating connector 3. The pushing device 1 is provided on the fixture frame 2, and the rear cover of the motor to be tested is placed inside the fixture frame 2. The driving end of the pushing device 1 is connected to the floating connector 3, and the front cover of the test machine is connected to the floating connector 3. The pushing device 1 drives the front cover of the test machine to approach the rear cover of the motor to be tested.

[0023] As can be seen from the above description, the beneficial effects of this utility model are as follows: the floating joint 3 can compensate for the deviation in the process of fitting the front cover of the test machine and the rear cover of the motor under test, so that the mating surfaces of the two are completely in contact, avoiding the front cover of the test machine from hard contacting the rotor bearing inside the rear cover of the motor under test, thereby causing damage to the bearing; after the front cover of the test machine and the rear cover of the motor under test are pressed together by the pushing device 1 in conjunction with the floating joint 3, the power-on test is performed on it through external settings.

[0024] Furthermore, the floating joint 3 includes a fixed joint 31 and a connecting joint 32. The fixed joint 31 is connected to the drive end of the pushing device 1, the connecting joint 32 is floatingly connected to the fixed joint 31, and the connecting joint 32 is detachably connected to the test machine front cover.

[0025] As described above, the device is connected to the drive end of the push device 1 via the fixed connector 31, and is detachably connected to the test machine front cover via the connecting connector 32.

[0026] Furthermore, the connecting joint 32 includes a stud and a nut, and the test machine front cover has a through hole in the middle; the stud passes through the through hole of the test machine front cover, and the nut is locked at the end of the stud and abuts against the edge of the through hole of the test machine front cover.

[0027] As described above, the stud of the connecting joint 32 passes through the through hole of the test machine front cover, and then the nut is locked and fixed to the stud on the side of the test machine front cover away from the connecting joint 32, thereby realizing the detachable connection between the connecting joint 32 and the test machine front cover.

[0028] Furthermore, a buffer layer is provided on the side of the nut that abuts against the edge of the through hole of the test cover.

[0029] As can be seen from the above description, the buffer layer on the nut prevents it from being over-tightened and causing damage to the front cover of the test machine.

[0030] Furthermore, the pushing device 1 is a pushing cylinder.

[0031] As can be seen from the above description, a push cylinder is used as the push device 1.

[0032] Furthermore, the tooling frame 2 includes an upper tooling plate 21, a lower tooling plate 22, and a support column 23, with the support column 23 connecting the upper tooling plate 21 and the lower tooling plate 22; the pushing device 1 is disposed on the upper tooling plate 21, and the lower tooling plate 22 is provided with a positioning block 24, the positioning block 24 being provided with a positioning groove adapted to the rear cover of the motor to be tested.

[0033] As described above, the tooling frame 2 is assembled from an upper tooling plate 21, a lower tooling plate 22 and a support column 23. The upper tooling plate 21 serves as the mounting part of the pushing device 1, while the positioning block 24 with a positioning groove on the lower tooling plate 22 is used to place and fix the rear cover of the motor to be tested.

[0034] Furthermore, the fixed joint 31 is movably connected to the drive end of the pushing device 1.

[0035] As can be seen from the above description, by setting the fixed joint 31 to the drive end of the push device 1 for movable connection, the distance between the floating joint 3 and the bottom of the tooling frame 2 can be adjusted by moving the fixed joint 31, thereby adapting to motors of different heights and sizes to be tested.

[0036] Furthermore, the fixed joint 31 is sleeved with the driving end of the pushing device 1. The driving end of the pushing device 1 is provided with a moving groove 11 along its length direction. The moving groove 11 is provided with a plurality of locking grooves 12 perpendicular to its length direction. The fixed joint 31 is provided with a locking block 311. The locking block 311 moves along the moving groove 11 and is pressed into the locking groove 12.

[0037] As described above, when the fixed connector 31 is assembled with the drive end of the push device 1, the locking block 311 of the fixed connector 31 moves in the height direction through the moving groove 11 of the drive end of the push device 1. After the movement is adjusted to the correct position, the fixed connector 31 rotates toward the locking groove 12 on the moving groove 11, thereby causing the locking block 311 to be locked into the locking groove 12, thus fixing the height position of the fixed connector 31.

[0038] Furthermore, the card block 311 is provided with a positioning protrusion 312, and the card slot 12 is provided with a positioning groove 13 that cooperates with the positioning protrusion 312.

[0039] As can be seen from the above description, the positioning protrusion 312 on the locking block 311 and the positioning groove 13 on the locking slot 12 cooperate to achieve the anti-disengagement cooperation between the two, while providing a sense of position so that the operator can confirm that the fixed connector 31 is locked in place.

[0040] Furthermore, the positioning block 24 is provided with a protective pad layer.

[0041] As can be seen from the above description, the protective pad on the positioning block 24 can reduce the contact loss between it and the back cover of the motor under test, thus protecting the back cover of the motor under test.

[0042] Please refer to Figures 1 to 4 Embodiment 1 of this utility model is as follows:

[0043] A test fixture for an electric motor test bench includes a pushing device 1, a fixture frame 2, and a floating joint 3.

[0044] The tooling frame 2 includes an upper tooling plate 21, a lower tooling plate 22, and a support column 23, with the support column 23 connecting the upper tooling plate 21 and the lower tooling plate 22. The pushing device 1 is mounted on the upper tooling plate 21, and the lower tooling plate 22 is provided with a positioning block 24. The positioning block 24 has a positioning groove that matches the rear cover of the motor under test. The positioning block 24 is provided with a protective pad layer.

[0045] The pushing device 1 is a pushing cylinder. The driving end of the pushing device 1 is connected to the floating joint 3. The floating joint 3 is connected to the test machine front cover. The pushing device 1 drives the test machine front cover to approach the rear cover of the motor under test.

[0046] The floating joint 3 includes a fixed joint 31 and a connecting joint 32. The fixed joint 31 is connected to the drive end of the pushing device 1, the connecting joint 32 is floatingly connected to the fixed joint 31, and the connecting joint 32 is detachably connected to the test machine front cover.

[0047] The connecting joint 32 includes a stud and a nut, and the test machine front cover has a through hole in the middle; the stud passes through the through hole of the test machine front cover, and the nut is locked at the end of the stud and abuts against the edge of the through hole of the test machine front cover.

[0048] A buffer layer is provided on the side of the nut that abuts against the edge of the through hole of the test cover.

[0049] In this embodiment, the fixed connector 31 is movably connected to the driving end of the pushing device 1. Specifically, the fixed connector 31 is sleeved with the driving end of the pushing device 1. The driving end of the pushing device 1 has a moving groove 11 along its length direction, and the moving groove 11 has a plurality of locking grooves 12 perpendicular to its length direction at intervals. The fixed connector 31 has a locking block 311, which moves along the moving groove 11 and is pressed into the locking groove 12. The locking block 311 has a positioning protrusion 312, and the locking groove 12 has a positioning groove 13 that cooperates with the positioning protrusion 312. The fixed connector 31 extends at one end that is floatingly connected to the connecting connector 32 and forms a floating connection cavity on its inner side. One end of the connecting connector 32 is inserted into the floating connection cavity to form a floating connection.

[0050] In summary, the motor test bench fixture provided by this utility model can compensate for the deviation during the fitting process between the front cover of the test machine and the rear cover of the motor under test through the setting of the floating joint, so that the mating surfaces of the two are completely in contact, avoiding the front cover of the test machine from hard contacting the rotor bearing inside the rear cover of the motor under test, thereby causing damage to the bearing; after the front cover of the test machine and the rear cover of the motor under test are pressed tightly together by the pushing device in conjunction with the floating joint, the power-on test is performed on it through external settings.

[0051] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A testing fixture for a motor test bench, characterized in that, The device includes a pushing device, a fixture frame, and a floating joint. The fixture frame is equipped with the pushing device, and the rear cover of the motor under test is placed inside the fixture frame. The driving end of the pushing device is connected to the floating joint, and the floating joint is connected to the test front cover. The pushing device drives the test front cover to approach the rear cover of the motor under test.

2. The testing fixture for the motor test bench according to claim 1, characterized in that, The floating joint includes a fixed joint and a connecting joint. The fixed joint is connected to the drive end of the pushing device, the connecting joint is floatingly connected to the fixed joint, and the connecting joint is detachably connected to the test machine front cover.

3. The testing fixture for the motor test bench according to claim 2, characterized in that, The connecting joint includes a stud and a nut, and the front cover of the test machine has a through hole in the middle; the stud is inserted into the through hole of the front cover of the test machine, and the nut is locked at the end of the stud and abuts against the edge of the through hole of the front cover of the test machine.

4. The testing fixture for the motor test bench according to claim 3, characterized in that, A buffer layer is provided on the side of the nut that abuts against the edge of the through hole of the test cover.

5. The testing fixture for the motor test bench according to claim 1, characterized in that, The pushing device is a pushing cylinder.

6. The testing fixture for the motor test bench according to claim 1, characterized in that, The tooling frame includes an upper tooling plate, a lower tooling plate, and a support column, with the upper and lower tooling plates connected by the support column; the pushing device is located on the upper tooling plate, and the lower tooling plate is provided with a positioning block, the positioning block having a positioning groove adapted to the rear cover of the motor to be tested.

7. The testing fixture for the motor test bench according to claim 2, characterized in that, The fixed joint is movably connected to the drive end of the pushing device.

8. The testing fixture for the motor test bench according to claim 7, characterized in that, The fixed connector is sleeved with the driving end of the pushing device. The driving end of the pushing device is provided with a moving groove along its length direction. The moving groove is provided with a plurality of locking grooves perpendicular to its length direction. The fixed connector is provided with a locking block. The locking block moves along the moving groove and is pressed into the locking groove.

9. The testing fixture for the motor test bench according to claim 8, characterized in that, The card block is provided with a positioning protrusion, and the card slot is provided with a positioning groove that cooperates with the positioning protrusion.

10. The testing fixture for the motor test bench according to claim 6, characterized in that, The positioning block is provided with a protective pad layer.

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