A test fixture

Abstract

The utility model relates to a kind of test tool, be provided between drive and target equipment, including test frame, transmission shaft assembly, first coupling and first connecting flange, drive includes drive housing and drive output shaft, target equipment includes equipment housing and equipment input, transmission shaft assembly is rotatably arranged on test frame, one end of transmission shaft assembly is connected with drive output shaft by first coupling, the other end of transmission shaft assembly is connected with equipment input, one end of test frame is connected with drive housing by first connecting flange, the other end of test frame is connected with equipment housing;First connecting flange has different mounting hole position, first coupling has different inner diameter, the inner diameter of first coupling and the outer diameter of drive output shaft are adaptively connected, the mounting hole position of first connecting flange and the mounting hole position of drive housing are adaptively connected.The utility model improves the versatility of test tool.

Description

Technical Field

[0001] This utility model relates to the field of actuator testing technology, and in particular to a testing fixture. Background Technology

[0002] In electromechanical systems, connecting the output of a motor to the input of an actuator is a common power transmission configuration, primarily used to convert the rotational motion of the motor into the mechanical action required by the actuator. The transmission efficiency between the motor and the actuator is a key indicator for measuring energy loss during power transmission. Therefore, efficiency testing fixtures are often used to test the transmission efficiency between the motor and the actuator.

[0003] Existing efficiency testing fixtures can only connect to one type of motor, making it impossible to test the transmission efficiency between actuators and motors of different specifications. This results in low versatility of existing efficiency testing fixtures. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a testing fixture that can improve the versatility of the testing fixture.

[0005] On one hand, this utility model provides a testing fixture, disposed between a drive and a target device, including a test frame, a transmission shaft assembly, a first coupling, and a first connecting flange. The drive includes a drive housing and a drive output shaft, and the target device includes a device housing and a device input end. The transmission shaft assembly is rotatably mounted on the test frame. One end of the transmission shaft assembly is connected to the drive output shaft via the first coupling, and the other end of the transmission shaft assembly is connected to the device input end. One end of the test frame is connected to the drive housing via the first connecting flange, and the other end of the test frame is connected to the device housing. The first connecting flange has different mounting holes, the first coupling has different inner diameters, the inner diameter of the first coupling is adapted to the outer diameter of the drive output shaft, and the mounting holes of the first connecting flange are adapted to the mounting holes of the drive housing.

[0006] In one embodiment of the present invention, the first coupling is provided with a first connecting end and a second connecting end. The first connecting end has different inner diameters. The inner diameter of the first connecting end is adapted to the outer diameter of the drive output shaft. The second connecting end is connected to one end of the transmission shaft assembly near the drive output shaft.

[0007] In one embodiment of this utility model, the first connecting flange is provided with a third connecting end and a fourth connecting end. The third connecting end has different mounting holes, and the mounting holes of the third connecting end are adapted to the mounting holes of the drive housing. The fourth connecting end is connected to one end of the test frame near the drive housing.

[0008] In one embodiment of the present invention, the first connecting flange is provided with a plurality of first mounting grooves extending from its center to the periphery, and the plurality of first mounting grooves form mounting holes for the first connecting flange.

[0009] In one embodiment of this utility model, the transmission shaft assembly includes a sensor, a second coupling, and a third coupling. The sensor is mounted on the test frame and has a sensor input end and a sensor output end. The sensor input end is connected to the first coupling through the second coupling, and the sensor output end is connected to one end of the device input end through the third coupling.

[0010] In one embodiment of the present invention, the test fixture further includes a first mounting base, the drive shaft assembly further includes a first drive shaft, the first mounting base is disposed between the test frame and the first connecting flange, the first drive shaft is rotatably disposed on the first mounting base, and the first drive shaft is disposed between the first coupling and the second coupling.

[0011] In one embodiment of this utility model, the test fixture further includes a second mounting base, the drive shaft assembly further includes a second drive shaft, the second mounting base is disposed between the test frame and the equipment housing, the second drive shaft is rotatably disposed on the second mounting base, and the second drive shaft is disposed on the third coupling and connected to the input end of the equipment.

[0012] In one embodiment of this utility model, the test fixture further includes a second connecting flange, and the drive shaft assembly further includes a third drive shaft. The second connecting flange is connected between the second mounting base and the device housing, and the third drive shaft is rotatably mounted on the second connecting flange and is disposed between the second drive shaft and the device input end.

[0013] In one embodiment of this utility model, the second connecting flange has different mounting holes, the end of the third drive shaft near the target device is a fifth connecting end, the fifth connecting end has different outer diameters, the outer diameter of the fifth connecting end is adapted to the inner diameter of the device input end, and the mounting holes of the second connecting flange are connected to the mounting holes of the device housing.

[0014] In one embodiment of the present invention, the second connecting flange is provided with a plurality of second mounting grooves extending from its center to the periphery, and the plurality of second mounting grooves form mounting holes for the second connecting flange.

[0015] The above-mentioned technical solution of this utility model has the following advantages compared with the prior art:

[0016] The test fixture of this application can replace the drive used for testing, and can select an appropriate first connecting flange and first coupling for the drive, so as to realize the transmission efficiency test between the drive of different specifications and the target equipment. It is not necessary to design a matching test fixture for each specification of drive, which improves the versatility of the test fixture and reduces the tooling cost. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the test fixture of this utility model;

[0019] Figure 2 This is a cross-sectional view of the testing fixture of this utility model;

[0020] Figure 3 yes Figure 2 A magnified view of a portion of point A in the middle;

[0021] Figure 4 yes Figure 2 A magnified view of a portion of point B in the middle;

[0022] Figure 5 This is a schematic diagram of the first mounting hole position of the first connecting flange of the test fixture of this utility model;

[0023] Figure 6 This is a schematic diagram of the second mounting hole position of the first connecting flange of the test fixture of this utility model;

[0024] Figure 7 This is a schematic diagram of the third mounting hole position of the first connecting flange of the test fixture of this utility model;

[0025] Figure 8 This is a schematic diagram of the mounting hole positions of the second connecting flange of the test fixture of this utility model;

[0026] Figure 9This is a schematic diagram of the structure of the first mounting groove of the first connecting flange of the test fixture of this utility model;

[0027] Figure 10 This is a schematic diagram of the structure of the second mounting groove of the first connecting flange of the test fixture of this utility model.

[0028] Explanation of reference numerals on the accompanying drawings:

[0029] 1. Drive; 2. Target device; 3. Test frame; 4. Drive shaft assembly; 5. First coupling; 6. First connecting flange; 7. Drive housing; 8. Drive output shaft; 9. Equipment housing; 10. Equipment input end; 11. First connecting end; 12. Second connecting end; 13. Third connecting end; 14. Fourth connecting end; 15. First mounting slot; 16. Sensor; 17. Second coupling; 18. Third coupling; 19. Sensor input end; 20. Sensor output end; 21. First mounting flange 21. Mounting base; 22. First drive shaft; 23. Second mounting base; 24. Second drive shaft; 25. Second connecting flange; 26. Third drive shaft; 27. Fifth connecting end; 28. Second mounting groove; 29. ​​First sub-flange; 30. Second sub-flange; 31. Snap-fit ​​groove; 32. Snap-fit ​​part; 33. Operating element; 34. Threaded hole; 35. First bearing cavity; 36. First bearing; 37. Second bearing cavity; 38. Second bearing; 39. Third bearing cavity; 40. Third bearing; 41. Operating hole. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0031] Reference Figures 1-10As shown, the testing fixture of this utility model is set between the drive 1 and the target device 2, and includes a test frame 3, a transmission shaft assembly 4, a first coupling 5, and a first connecting flange 6. The drive 1 includes a drive housing 7 and a drive output shaft 8. The target device 2 includes a device housing 9 and a device input end 10. The transmission shaft assembly 4 is rotatably mounted on the test frame 3. One end of the transmission shaft assembly 4 is connected to the drive output shaft 8 through the first coupling 5, and the other end of the transmission shaft assembly 4 is connected to the device input end 10. One end of the test frame 3 is connected to the drive housing 7 through the first connecting flange 6, and the other end of the test frame 3 is connected to the device housing 9. The first connecting flange 6 has different mounting holes, and the first coupling 5 has different inner diameters. The inner diameter of the first coupling 5 is adapted to the outer diameter of the drive output shaft 8, and the mounting holes of the first connecting flange 6 are adapted to the mounting holes of the drive housing 7.

[0032] The test fixture of this application can be adapted to different specifications of drive 1 to test the transmission efficiency between drive 1 of different specifications and target device 2. Specifically, drive 1 includes drive output shaft 8 and drive housing 7, and target device 2 includes device input end 10 and device housing 9. In this application, drive 1 is a motor, and target device 2 is an actuator. That is, this application uses the test fixture to test the transmission efficiency between the motor and the actuator. Figure 1 and Figure 2 As shown, the test fixture of this application includes a test frame 3, a drive shaft assembly 4, a first coupling 5, and a first connecting flange 6. The drive shaft assembly 4 is used to realize the transmission connection between the drive 1 and the target device 2. The test frame 3 is used to mount the drive shaft assembly 4, the first coupling 5, and the first connecting flange 6. The first coupling 5 is used to connect the drive shaft assembly 4 and the drive output shaft 8 of the drive 1. The first connecting flange 6 is used to connect the test frame 3 and the drive housing 7 of the drive 1. Further, as... Figure 1 and Figure 2As shown, the test frame 3 is cylindrical, with an internal cylindrical receiving cavity. The drive shaft assembly 4 is rotatably mounted within this cavity, with its axis coinciding with the axis of the cavity. One end of the drive shaft assembly 4 is connected to the drive output shaft 8 via a first coupling 5, facilitating the transmission of rotational power from the drive output shaft 8 to the drive shaft assembly 4. The other end of the drive shaft assembly 4 is connected to the device input terminal 10 of the target device 2, transmitting rotational power from the drive shaft assembly 4 to the device input terminal 10 of the target device 2. This allows the drive 1 to transmit rotational power to the target device 2 via the drive shaft assembly 4. Furthermore, the drive housing 7 of the drive 1 is fixed to the test frame 3 via a first connecting flange 6. To test the transmission efficiency between the drive 1 and the target device 2, different specifications of the drive 1 are often used for testing, and the transmission efficiency is measured through the test results of different specifications of the drive 1. Different specifications of the drive 1 have different dimensions, mainly including the mounting holes of the drive housing 7 and the outer diameter of the drive output shaft 8. Therefore, when the drive 1 used for testing is replaced, the mounting holes of the drive housing 7 and the outer diameter of the drive output shaft 8 change, requiring the use of a first connecting flange 6 that matches the mounting holes of the drive housing 7, and a coupling that matches the drive output shaft 8. Therefore, the first coupling 5 of this application has different inner diameters. When it is necessary to replace the drive 1 used for testing, a first coupling 5 that matches the drive output shaft 8 is selected, so that the inner diameter of the first coupling 5 is adapted to the outer diameter of the drive output shaft 8. Then, a first connecting flange 6 that matches the drive housing 7 is selected, so that the mounting holes of the first connecting flange 6 are adapted to the mounting holes of the drive housing 7. The first coupling 5 is designed with different specifications, and the inner diameter of the first coupling 5 of different specifications is different. When it is necessary to replace the drive 1, a first coupling 5 that matches the outer diameter of the drive output shaft 8 is selected. The first connecting flange 6 can be designed in different specifications, with different mounting hole positions for each specification. When the drive 1 needs to be replaced, a first connecting flange 6 that matches the mounting hole positions of the drive housing 7 can be selected; alternatively, only one first connecting flange 6 can be designed, with several mounting hole positions designed on it, such as... Figure 5 The mounting hole position a shown is as follows: Figure 6 The mounting hole b shown and as shown Figure 7 As shown in the mounting hole c, when the drive 1 needs to be replaced, the corresponding mounting hole can be selected on the first connecting flange 6. Therefore, the test fixture of this application can replace the drive 1 used for testing, and can select the appropriate first connecting flange 6 and first coupling 5 for the drive 1, so as to realize the transmission efficiency test between the drive 1 of different specifications and the target device 2. It is not necessary to design a matching test fixture for each specification of drive 1, which improves the versatility of the test fixture and reduces the tooling cost.

[0033] In one embodiment, the first coupling 5 is provided with a first connecting end 11 and a second connecting end 12. The first connecting end 11 has different inner diameters. The inner diameter of the first connecting end 11 is adapted to the outer diameter of the drive output shaft 8. The second connecting end 12 is connected to one end of the transmission shaft assembly 4 near the drive output shaft 8.

[0034] This application may select a first coupling 5 that matches the drive output shaft 8. Specifically, such as... Figure 2 and Figure 3 As shown, the first coupling 5 of this application is provided with a first connecting end 11 and a second connecting end 12. The first connecting end 11 is used to realize the transmission connection between the first coupling 5 and the drive output shaft 8, and the second connecting end 12 is used to realize the transmission connection between the first coupling 5 and the transmission shaft assembly 4. Further, the first connecting end 11 is a connecting groove. The inner diameter of the first connecting end 11 (connecting groove) on the first coupling 5 of different specifications is different. When it is necessary to replace the drive 1, a first coupling 5 that is compatible with the drive output shaft 8 is selected so that the inner diameter of the connecting groove of the first coupling 5 is compatible with the outer diameter of the drive output shaft 8. Among them, the drive output shaft 8 and the first coupling 5 realize power transmission through a torque transmission mechanism such as a key. The key can adopt a flat key, spline, or other structure. Preferably, the drive output shaft 8 of this application is a spline, and the keyway compatible with the drive output shaft 8 is a spline groove, that is, the first connecting end 11 is a spline groove.

[0035] In one embodiment, the first connecting flange 6 is provided with a third connecting end 13 and a fourth connecting end 14. The third connecting end 13 has different mounting holes, which are adapted to the mounting holes of the drive housing 7. The fourth connecting end 14 is connected to one end of the test frame 3 near the drive housing 7.

[0036] This application may select a first connecting flange 6 that matches the drive housing 7. Specifically, as shown... Figure 2 and Figure 3As shown, the first connecting flange 6 of this application is provided with a third connecting end 13 and a fourth connecting end 14. The third connecting end 13 is used to fix the first connecting flange 6 to the drive housing 7, and the fourth connecting end 14 is used to fix the first connecting flange 6 to the test frame 3. Furthermore, the third connecting end 13 has mounting holes. The mounting holes of the third connecting end 13 are different on different specifications of the first connecting flange 6. When it is necessary to replace the drive 1, a first connecting flange 6 that is compatible with the drive housing 7 is selected, so that the mounting holes of the third connecting end 13 on the first connecting flange 6 are compatible with the mounting holes of the drive housing 7. Specifically, the mounting holes of the drive housing 7 and the mounting holes of the third connecting end 13 are aligned, and then the drive housing 7 and the third connecting end 13 are locked together by corresponding fasteners passing through the mounting holes of the drive housing 7 and the third connecting end 13, thus facilitating the connection between the drive housing 7 and the first connecting flange 6.

[0037] In one embodiment, the first connecting flange 6 is provided with a plurality of first mounting grooves 15 extending from its center to the periphery, and the plurality of first mounting grooves 15 form mounting holes for the first connecting flange 6.

[0038] This application achieves adaptation to different mounting hole positions through a plurality of first mounting grooves 15 on the first connecting flange 6. Specifically, as shown in the example... Figure 9 As shown, the first connecting flange 6 is provided with a plurality of first mounting grooves 15. The first mounting grooves 15 extend outward from the center of the first connecting flange 6, and the plurality of first mounting grooves 15 are arranged in a circular array around the center of the first connecting flange 6. The drive housing 7 has four cylindrical mounting holes. Preferably, four first mounting grooves 15 are provided, and the central angles of any two adjacent first mounting grooves 15 around the center of the first connecting flange 6 are equal. When it is necessary to replace the drive 1, each mounting hole of the drive housing 7 is aligned with the corresponding first mounting groove 15, and then the drive housing 7 is locked to the first connecting flange 6 by fasteners passing through the mounting holes and first mounting grooves 15 of the drive housing 7, so as to realize the connection between the drive housing 7 and the first connecting flange 6.

[0039] In one embodiment, the drive shaft assembly 4 includes a sensor 16, a second coupling 17, and a third coupling 18. The sensor 16 is mounted on the test frame 3 and has a sensor input terminal 19 and a sensor output terminal 20. The sensor input terminal 19 is connected to the first coupling 5 via the second coupling 17, and the sensor output terminal 20 is connected to one end of the device input terminal 10 via the third coupling 18.

[0040] This application uses sensor 16 to collect parameters such as torque and rotational speed. Specifically, for example... Figure 2As shown, the drive shaft assembly 4 includes a sensor 16, which collects parameters such as torque and rotational speed between the drive 1 and the target device 2. Torque is measured using a strain gauge, and rotational speed is measured using a magnetic sensor. The data collected by the sensor can be transmitted to a terminal via wired or wireless communication. Furthermore, the drive shaft assembly 4 also includes a second coupling 17 and a third coupling 18. The second coupling 17 connects the sensor 16 to the drive output shaft 8, and the third coupling 18 connects the sensor 16 to the device input end 10. Even further, the sensor 16 has a sensor input end 19 and a sensor output end 20. The sensor input end 19 is connected to the end of the second coupling 17 closest to the sensor 16, and the end of the second coupling 17 furthest from the sensor 16 is connected to the drive output shaft 8 via a first coupling 5. This allows the rotational power of the drive output shaft 8 to be transmitted sequentially through the first coupling 5 and the second coupling 17 to the sensor input end 19. The sensor output end 20 is connected to the end of the third coupling 18 closest to the sensor 16, and the end of the third coupling 18 furthest from the sensor 16 is connected to the device input end 10, so that the rotational power of the sensor output end 20 can be transmitted to the device input end 10 through the third coupling 18.

[0041] In one embodiment, the test fixture further includes a first mounting base 21, and the drive shaft assembly 4 further includes a first drive shaft 22. The first mounting base 21 is disposed between the test frame 3 and the first connecting flange 6, and the first drive shaft 22 is rotatably disposed on the first mounting base 21. The first drive shaft 22 is disposed between the first coupling 5 and the second coupling 17.

[0042] This application achieves the connection between the test frame 3 and the first connecting flange 6 through the first mounting base 21, and achieves the transmission connection between the transmission shaft assembly 4 and the drive output shaft 8 through the first transmission shaft 22. Specifically, as shown... Figure 2 and Figure 3As shown, the test fixture of this application includes a first mounting base 21, and the transmission shaft assembly 4 of this application includes a first transmission shaft 22. Further, the first mounting base 21 is connected to the test frame 3 near the drive 1 end, and a first bearing cavity 35 is provided inside the first mounting base 21. A first bearing 36 is installed inside the first bearing cavity 35, and the first transmission shaft 22 is mounted on the inner ring of the first bearing 36 to support the rotation of the first transmission shaft 22 through the first bearing 36. Preferably, two first bearings 36 are provided on the first mounting base 21, and the two first bearings 36 are arranged at intervals along their axes on the first mounting base 21 to support the rotation of the first transmission shaft 22 through the two first bearings 36, thereby improving transmission stability. The first drive shaft 22 is disposed between the first coupling 5 and the second coupling 17. The drive output shaft 8, the first coupling 5, the first drive shaft 22, the second coupling 17, and the sensor input end 19 are sequentially connected for transmission, so that the rotational power of the drive output shaft 8 can be transmitted to the sensor input end 19 through the first coupling 5, the first drive shaft 22, and the second coupling 17. The first mounting base 21 is connected to the test frame 3, the first connecting flange 6 is connected to the first mounting base 21, and the drive housing 7 is connected to the first connecting flange 6. That is, the test frame 3, the first mounting base 21, the first connecting flange 6, and the drive housing 7 are sequentially connected to fix the drive housing 7 through the test frame 3.

[0043] In one embodiment, the test fixture further includes a second mounting base 23, and the drive shaft assembly 4 further includes a second drive shaft 24. The second mounting base 23 is disposed between the test frame 3 and the equipment housing 9, and the second drive shaft 24 is rotatably disposed on the second mounting base 23. The second drive shaft 24 is disposed on the third coupling 18 and connected to the equipment input end 10.

[0044] This application achieves the connection between the test frame 3 and the equipment housing 9 through the second mounting base 23, and achieves the transmission connection between the transmission shaft assembly 4 and the equipment input end 10 through the second transmission shaft 24. Specifically, as shown... Figure 2 and Figure 4As shown, the test fixture of this application includes a second mounting base 23, and the transmission shaft assembly 4 of this application includes a second transmission shaft 24. Further, the second mounting base 23 is connected to the end of the test frame 3 near the target device 2, and a second bearing cavity 37 is provided inside the second mounting base 23. A second bearing 38 is installed inside the second bearing cavity 37, and the second transmission shaft 24 is mounted on the inner ring of the second bearing 38 to support the rotation of the second transmission shaft 24 through the second bearing 38. Preferably, two second bearings 38 are provided on the second mounting base 23, and the two second bearings 38 are arranged at intervals along their axes on the second mounting base 23 to support the rotation of the second transmission shaft 24 through the two second bearings 38, thereby improving transmission stability. The second transmission shaft 24 is located between the third coupling 18 and the device input end 10. The sensor output end 20, the third coupling 18, the second transmission shaft 24, and the device input end 10 are sequentially connected for transmission, so that the rotational power of the sensor output end 20 is transmitted to the device input end 10 through the third coupling 18 and the second transmission shaft 24. The second mounting base 23 is connected to the test frame 3, and the equipment housing 9 is connected to the second mounting base 23. That is, the test frame 3, the second mounting base 23, and the equipment housing 9 are connected in sequence so as to fix the equipment housing 9 through the test frame 3.

[0045] In one embodiment, the test fixture further includes a second connecting flange 25, and the drive shaft assembly 4 further includes a third drive shaft 26. The second connecting flange 25 is connected between the second mounting base 23 and the device housing 9. The third drive shaft 26 is rotatably mounted on the second connecting flange 25 and is disposed between the second drive shaft 24 and the device input end 10.

[0046] This application achieves the connection between the second mounting base 23 and the equipment housing 9 through the second connecting flange 25, and achieves the transmission connection between the second drive shaft 24 and the equipment input end 10 through the third drive shaft 26. Specifically, as shown... Figure 2 and Figure 4As shown, the test fixture of this application includes a second connecting flange 25, and the drive shaft assembly 4 of this application also includes a third drive shaft 26. Further, the device housing 9 of this application is connected to the second connecting flange 25, the second connecting flange 25 is connected to the second mounting base 23, the second mounting base 23 is connected to the test frame 3, a third bearing cavity 39 is provided inside the second connecting flange 25, a third bearing 40 is installed inside the third bearing cavity 39, and the third drive shaft 26 is installed on the inner ring of the third bearing 40 to support the rotation of the third drive shaft 26 through the third bearing 40. One end of the third drive shaft 26 near the second drive shaft 24 is connected to the second drive shaft 24, and the other end of the third drive shaft 26 near the target device 2 is connected to the input end of the target device 2, so that the rotational power of the sensor output end 20 is transmitted to the device input end 10 sequentially through the third coupling 18, the second drive shaft 24, and the third drive shaft 26. Furthermore, the second connecting flange 25 includes a first sub-flange 29 and a second sub-flange 30. The second mounting base 23 is connected to the end of the test frame 3 near the target device 2. The first sub-flange 29 is connected to the second mounting base 23, the second sub-flange 30 is connected to the first sub-flange 29, and the device housing 9 is connected to the second sub-flange 30. That is, the test frame 3, the second mounting base 23, the first sub-flange 29, the second sub-flange 30, and the device housing 9 are connected in sequence to facilitate fixing the device housing 9 through the test frame 3.

[0047] In one embodiment, the second connecting flange 25 has different mounting holes, and the end of the third drive shaft 26 near the target device 2 is a fifth connecting end 27. The fifth connecting end 27 has different outer diameters, and the outer diameter of the fifth connecting end 27 is adapted to the inner diameter of the device input end 10. The mounting holes of the second connecting flange 25 are connected to the mounting holes of the device housing 9.

[0048] The test fixture of this application can be adapted not only to different specifications of drive 1, but also to different specifications of target device 2, to test the transmission efficiency between drive 1 and target device 2. Specifically, the target devices 2 of different specifications have different dimensions, mainly including the mounting holes of the device housing 9 and the inner diameter of the device input end 10. Therefore, when the target device 2 used for testing is changed, the mounting holes of the device housing 9 and the inner diameter of the device input end 10 change. A second connecting flange 25 matching the mounting holes of the device housing 9 and a third drive shaft 26 matching the device input end 10 are required. The mounting hole d of the second connecting flange 25 is as follows: Figure 8 As shown. The end of the third drive shaft 26 closest to the target device 2 is the fifth connection end 27, as shown... Figure 4As shown, the third drive shaft 26 has different specifications, and the outer diameter of the fifth connecting end 27 on the third drive shaft 26 is different for different specifications. When it is necessary to replace the target device 2, the third drive shaft 26 that matches the inner diameter of the device input end 10 can be selected, thus making the outer diameter of the fifth connecting end 27 on the third drive shaft 26 match the inner diameter of the device input end 10. The second connecting flange 25 has different specifications, and the mounting hole positions of the second connecting flange 25 are different for different specifications. When it is necessary to replace the target device 2, the second connecting flange 25 that matches the mounting hole positions of the device housing 9 can be selected; or, only one second connecting flange 25 can be designed, and several mounting holes can be designed on the second connecting flange 25. When it is necessary to replace the target device 2, the corresponding mounting hole position can be selected on the second connecting flange 25. Therefore, the test fixture of this application can replace the target device 2 used for testing, and can select an appropriate second connecting flange 25 and third drive shaft 26 for the target device 2, so as to realize the transmission efficiency test between the target device 2 and the drive 1 of different specifications. It is not necessary to design a matching test fixture for each specification of target device 2, which improves the versatility of the test fixture and reduces the tooling cost. The mounting hole is set on the second sub-flange 30.

[0049] In one embodiment, the second connecting flange 25 is provided with a plurality of second mounting grooves 28 extending from its center to the periphery, and the plurality of second mounting grooves 28 form mounting holes for the second connecting flange 25.

[0050] This application achieves adaptation to different mounting hole positions through a plurality of second mounting grooves 28 on the second connecting flange 25. Specifically, as shown in the example... Figure 10 As shown, the second connecting flange 25 is provided with a plurality of second mounting grooves 28. The second mounting grooves 28 extend outward from the center of the second connecting flange 25, and the plurality of second mounting grooves 28 are arranged in a circular array around the center of the second connecting flange 25. The mounting holes on the equipment housing 9 are four cylindrical holes. Preferably, four second mounting grooves 28 are provided, and the central angles of any two adjacent second mounting grooves 28 around the center of the second connecting flange 25 are equal. When it is necessary to replace the target equipment 2, each mounting hole of the equipment housing 9 is aligned with the corresponding second mounting groove 28, and then the equipment housing 9 is locked to the second connecting flange 25 by fasteners passing through the second mounting grooves 28 and the mounting holes of the equipment housing 9, so as to realize the connection between the drive housing 7 and the second connecting flange 25. Among them, the second mounting grooves 28 are provided on the second sub-flange 30, and the four second mounting grooves 28 are arranged in a circular array at equal angles on the second sub-flange 30.

[0051] In one embodiment, the test frame 3 is provided with a snap-fit ​​groove 31, and the sensor 16 is provided with a snap-fit ​​part 32. The snap-fit ​​part 32 is disposed in the snap-fit ​​groove 31, and the snap-fit ​​part 32 cooperates with the snap-fit ​​groove 31 to constrain the rotational degree of freedom of the sensor 16.

[0052] This application constrains the rotational degree of freedom of sensor 16 using test fixture 3. For example... Figure 1 As shown, the test fixture 3 is provided with a snap-fit ​​groove 31, and the sensor 16 is provided with a snap-fit ​​part 32. The snap-fit ​​part 32 snaps into the snap-fit ​​groove 31, so that the snap-fit ​​part 32 is constrained by the groove wall of the snap-fit ​​groove 31, thereby constraining the rotational degree of freedom of the snap-fit ​​part 32, so that when the drive 1 transmits the rotational power to the target device 2 through the transmission shaft assembly 4, the sensor 16 will not rotate. Furthermore, the test fixture of this application also includes an operating member 33, which is disposed on the test fixture. The operating member 33 can be a bolt. The test fixture 3 is provided with a threaded hole 34, and the bolt is threaded into the threaded hole 34. By rotating the bolt, the end of the bolt abuts against the snap-fit ​​part 32 of the sensor 16, so as to further limit the snap-fit ​​part 32 by the bolt, and firmly connect the sensor 16 to the test fixture 3, thereby improving the limiting ability of the sensor 16.

[0053] In one embodiment, the test frame 3 is provided with an operation hole 41, which is located near the second coupling 17 and near the third coupling 18.

[0054] This application facilitates subsequent maintenance operations through the access hole. Specifically, such as... Figure 1 , Figure 3 and Figure 4 As shown, the test fixture 3 is provided with an operation hole 41. The operation hole 41 is located near the second coupling 17 and near the third coupling 18. If the sensor 16 needs to be calibrated or repaired, the second coupling 17 and the third coupling 18 can be loosened from the operation hole 41, and the sensor 16 can be removed by removing the screws at both ends.

[0055] In addition, the first, second, and third couplings of this application are provided with damping material, and the first, second, and third couplings have dynamic balance adjustment function. The damping material layer and dynamic balance adjustment can reduce vibration fatigue during long-term operation, extend the equipment life by more than 30%, and the coupling can absorb the vibration deviation between the motor and the actuator, reducing the dynamic balance sensitivity.

[0056] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A testing fixture, disposed between a drive (1) and a target device (2), characterized in that: The device includes a test frame (3), a drive shaft assembly (4), a first coupling (5), and a first connecting flange (6). The drive (1) includes a drive housing (7) and a drive output shaft (8). The target device (2) includes a device housing (9) and a device input end (10). The drive shaft assembly (4) is rotatably mounted on the test frame (3). One end of the drive shaft assembly (4) is connected to the drive output shaft (8) via the first coupling (5), and the other end of the drive shaft assembly (4) is connected to the device input end (10). The test frame (3) is connected to the drive housing (7) via the first connecting flange (6) at one end (10), and the other end of the test frame (3) is connected to the equipment housing (9). The first connecting flange (6) has different mounting holes, the first coupling (5) has different inner diameters, the inner diameter of the first coupling (5) is adapted to the outer diameter of the drive output shaft (8), and the mounting holes of the first connecting flange (6) are adapted to the mounting holes of the drive housing (7).

2. The testing fixture according to claim 1, characterized in that: The first coupling (5) is provided with a first connecting end (11) and a second connecting end (12). The first connecting end (11) has different inner diameters. The inner diameter of the first connecting end (11) is adapted to the outer diameter of the drive output shaft (8). The second connecting end (12) is connected to one end of the transmission shaft assembly (4) near the drive output shaft (8).

3. The testing fixture according to claim 1, characterized in that: The first connecting flange (6) is provided with a third connecting end (13) and a fourth connecting end (14). The third connecting end (13) has different mounting holes. The mounting holes of the third connecting end (13) are adapted to the mounting holes of the drive housing (7). The fourth connecting end (14) is connected to the end of the test frame (3) near the drive housing (7).

4. The testing fixture according to claim 1, characterized in that: The first connecting flange (6) is provided with a plurality of first mounting grooves (15) extending from its center to the periphery, and the plurality of first mounting grooves (15) form mounting holes for the first connecting flange (6).

5. The testing fixture according to claim 1, characterized in that: The drive shaft assembly (4) includes a sensor (16), a second coupling (17), and a third coupling (18). The sensor (16) is mounted on the test frame (3). The sensor (16) is provided with a sensor input end (19) and a sensor output end (20). The sensor input end (19) is connected to the first coupling (5) through the second coupling (17). The sensor output end (20) is connected to one end of the device input end (10) through the third coupling (18).

6. The testing fixture according to claim 5, characterized in that: The test fixture also includes a first mounting base (21), and the drive shaft assembly (4) also includes a first drive shaft (22). The first mounting base (21) is disposed between the test frame (3) and the first connecting flange (6). The first drive shaft (22) is rotatably disposed on the first mounting base (21) and is disposed between the first coupling (5) and the second coupling (17).

7. The testing fixture according to claim 5, characterized in that: The test fixture also includes a second mounting base (23), and the drive shaft assembly (4) also includes a second drive shaft (24). The second mounting base (23) is disposed between the test frame (3) and the equipment housing (9). The second drive shaft (24) is rotatably disposed on the second mounting base (23). The second drive shaft (24) is disposed on the third coupling (18) and connected to the equipment input end (10).

8. The test fixture according to claim 7, characterized in that: The test fixture also includes a second connecting flange (25), and the drive shaft assembly (4) also includes a third drive shaft (26). The second connecting flange (25) is connected between the second mounting base (23) and the device housing (9). The third drive shaft (26) is rotatably mounted on the second connecting flange (25) and is located between the second drive shaft (24) and the device input end (10).

9. The testing fixture according to claim 8, characterized in that: The second connecting flange (25) has different mounting holes. The end of the third drive shaft (26) near the target device (2) is the fifth connecting end (27). The fifth connecting end (27) has different outer diameters. The outer diameter of the fifth connecting end (27) is adapted to the inner diameter of the device input end (10). The mounting holes of the second connecting flange (25) are connected to the mounting holes of the device housing (9).

10. The test fixture according to claim 9, characterized in that: The second connecting flange (25) is provided with a plurality of second mounting grooves (28) extending from its center to the periphery, and the plurality of second mounting grooves (28) form mounting holes for the second connecting flange (25).

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