A comprehensive testing device for electric actuators

Abstract

The present invention belongs to the technical field of electric actuator testing, and in particular discloses a comprehensive testing device for an electric actuator, comprising a pad, an operating table fixed on the top of the pad, a first adjusting slot provided on the top of the operating table near one side edge, a second adjusting slot provided on the top of the pad, a second adjusting block slidably connected inside the second adjusting slot, a fixed plate fixed on the top of the second adjusting block, and an oil tank fixed on the top of the fixed plate near one side edge; the present invention is conducive to adjusting the maximum value of the torque when testing electric equipment of different powers by providing an adjustment component, a feedback component and a protection component, and at the same time, during the torque test of the electric equipment, when the torque of the electric equipment reaches the maximum value, the electric equipment is allowed to operate normally to prevent interference, and when the electric equipment operates normally after the test, the contact part of the feedback component is protected to prevent dry friction from damaging the contact part.

Description

Technical Field

[0001] The present invention relates to the technical field of electric actuator testing, in particular to a comprehensive testing device for an electric actuator. Background Art

[0002] Comprehensive testing of electric actuators is very important. It can be used to determine whether new product development meets technical standards and requirements when developing new products. Comprehensive testing of each electric actuator before leaving the factory is the basis for judging whether the electric actuator meets factory standards.

[0003] Currently, when selecting electric equipment, it is necessary to perform a torque test on it before installation. During the torque test, existing test equipment cannot adjust the maximum torque limit of the test according to the power size of the test equipment, resulting in limitations in actual use. Summary of the Invention

[0004] The purpose of the present invention is to provide a comprehensive testing device for an electric actuator, which solves the problem that the existing testing equipment cannot adjust the maximum torque limit of its test according to the power size of the testing equipment during the torque test process, resulting in relatively limited actual use.

[0005] To achieve the above-mentioned purpose, the present invention adopts the following technical solution: a comprehensive testing device for an electric actuator, comprising a pad, an operating table is fixed on the top of the pad, a first adjusting groove is provided on the top of the operating table near one side edge, a second adjusting groove is provided on the top of the pad, a second adjusting block is slidably connected inside the second adjusting groove, a fixing plate is fixed on the top of the second adjusting block, an oil tank is fixed on the top of the fixing plate near one side edge, an oil filling pipe is connected to the top of the oil tank, a cylindrical cavity is provided inside the fixing plate and passes through to one side, and an adjusting component for adjusting the upper limit of the maximum test torque is provided inside the cylindrical cavity;

[0006] A docking block is rotatably connected between the inner walls of the cylindrical cavity near one side edge, a fixed column is fixed between the inner walls of the cylindrical cavity near one side of the docking block, a feedback component is arranged inside the fixed column, and a protective component is arranged between the bottom of the oil tank and the fixed column.

[0007] Preferably, a first screw is rotatably connected between the inner walls on both sides of the first adjusting groove, and a second screw is rotatably connected between the inner walls on both sides of the second adjusting groove, one end of the first screw and one end of the second screw extend to the outside of the operating table, one end of the first screw and one end of the second screw are fixed with an adjustment knob, and two first adjustment blocks are slidably connected inside the first adjusting groove, the two first adjustment blocks are threadedly connected to the outer surface of the first screw, and the threaded engagement directions between the two first adjustment blocks and the first screw are opposite, a splint is fixed on the top of the two first adjustment blocks, and the second adjustment block is threadedly connected to the second screw.

[0008] Preferably, the adjustment assembly includes an adjustment plate, which is slidably connected to the inside of the cylindrical cavity. Limiting grooves are provided on both sides of the inner wall of the cylindrical cavity. Both sides of the adjustment plate are correspondingly slidably engaged in the inside of the limiting grooves. One side of the adjustment plate is rotatably connected to a third screw, and one end of the third screw is threaded through to the outside of the fixed plate.

[0009] Preferably, a scale groove is provided on the top of the fixed plate, and scale bars are provided on the inner bottom surface of the scale groove near the edges on both sides. A through opening that penetrates into the interior of the cylindrical cavity is provided on the inner bottom surface of the scale groove, and a guide plate is fixed to the outer surface of the adjustment plate, the guide plate is located inside the through opening, and the top of the guide plate extends to the interior of the scale groove, a pointer is fixed on the top of the guide plate, and a first spring is fixed on the other side of the adjustment plate.

[0010] Preferably, the feedback component includes a movable disk, an inner cavity is opened inside the fixed column, the movable disk is slidably arranged inside the inner cavity, a hexagonal rod is fixed on one side of the movable disk, one end of the hexagonal rod slides through to the outside of the fixed column, a circular plate is fixed on one end of the hexagonal rod, and one side of the circular plate is fixed to one end of the first spring.

[0011] Preferably, an annular slide is provided on one side of the fixed column, and a plurality of pressing blocks are fixed at equal intervals along the circumferential direction on the other side of the movable disk. One end of each of the pressing blocks slides through the interior of the annular slide, and one side of each of the pressing blocks is inclined. The edge of the outer surface of the movable disk is inclined on the side close to the hexagonal rod, and an arc groove is provided on the outer surface of the movable disk.

[0012] Preferably, an annular groove is provided between the inner walls of the cylindrical cavity near one side edge, an annular ring is fixed on the outer surface of the docking block and is engaged with the inside of the annular groove, a docking bayonet is provided on the outer surface of one side of the docking block, and a plurality of contact blocks are fixed on the outer surface of the other side of the docking block at equal distances along the circumferential direction, one side of the plurality of contact blocks are inclined, one end of the plurality of contact blocks slides and extends to the inside of the annular slide, and the inclined surfaces of the plurality of contact blocks correspond to and fit into the inclined surface of the pressing block.

[0013] Preferably, the protective assembly includes a guide rod, an adjustment cavity is opened inside the fixed plate above the fixed column, the guide rod is located inside the adjustment cavity, the top of the guide rod slides through the inner bottom surface of the oil tank, the bottom of the guide rod slides through the inside of the cylindrical cavity, and the bottom of the guide rod fits into the inclined surface on the outer surface of the movable disk.

[0014] Preferably, a hexagonal plate is fixed to the outer surface of the guide rod, and the outer surface of the hexagonal plate is slidably fitted with the outer surface of the adjustment cavity. A second spring is fixed between the top of the hexagonal plate and the inner top surface of the adjustment cavity. A buffer cavity is provided inside the guide rod near the top edge, and a plurality of side openings are provided on the inner wall of the buffer cavity at equal distances along the circumferential direction and penetrate into the outer surface of the guide rod.

[0015] Preferably, a guide hole is provided on the inner bottom surface of the buffer cavity, and the bottom of the guide hole penetrates to the outer surface of the guide rod near the bottom edge. An oil inlet hole is provided inside the fixed plate below the oil tank, and one end of the oil inlet hole penetrates into the inside of the annular slide, and the other end of the oil inlet hole penetrates to the part that fits with the outer surface of the guide rod, and the other end of the oil inlet hole is offset and opposite to the lower outlet of the guide hole, and an oil outlet hole is provided at the bottom of the fixed plate that penetrates into the inside of the annular slide.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention is provided with an adjustment component, a feedback component, and a protection component, which facilitates adjustment of the maximum torque when testing electric devices of different powers. At the same time, during the torque test of the electric device, when the torque of the electric device reaches the maximum value, the electric device is allowed to operate normally to prevent interference. In addition, when the electric device operates normally after the test, the contact parts of the feedback component are protected to prevent dry friction from damaging the contact parts.

[0018] 2. The present invention is provided with an adjustment component, which can adjust the maximum torque test value of electric equipment with different power. When the adjustment component is in operation, the third screw is rotated to push the adjustment plate to slide, thereby changing the pressing force on the first spring, and then changing the support strength of the feedback component, so as to achieve the purpose of adjusting the maximum test torque of the test equipment;

[0019] 3. The present invention is provided with a feedback component, which can enable the test device to operate normally after the test device reaches the maximum test torque. When the feedback component is working, when the test device drives the docking block to rotate and reaches the maximum torque, the mutual constraint of the inclined surfaces can be released. The push of the inclined surface can push the pressing block toward the first spring, and at the same time drive the movable disk to slide to one side, so that the bottom of the guide rod is engaged in the arc groove, thereby limiting the movable disk.

[0020] 4. The present invention is provided with a protective component to prevent wear at the joint of the feedback component during normal operation after the test equipment reaches the maximum torque. When the protective component is working, the movable disk slides to one side when the feedback component is working, and the guide rod is lifted upward under the action of the inclined surface at the edge. During the lifting process, the side port on the outer surface of the guide rod is lifted to the inside of the oil tank. At this time, the oil inside the oil tank can be introduced into the annular slide to lubricate its connection parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of one side of a comprehensive testing device for an electric actuator proposed by the present invention;

[0022] Figure 2 This is a schematic diagram of the other side of the three-dimensional structure of a comprehensive testing device for an electric actuator proposed by the present invention;

[0023] Figure 3 The present invention provides a schematic top view of a three-dimensional structure of a fixing plate in a comprehensive testing device for an electric actuator;

[0024] Figure 4 A schematic diagram of the three-dimensional structure of one side of a fixed plate in a comprehensive testing device for an electric actuator proposed in the present invention;

[0025] Figure 5 The present invention provides a schematic diagram of a cross-sectional three-dimensional structure of a fixing plate in a comprehensive testing device for an electric actuator;

[0026] Figure 6 The present invention provides a schematic cross-sectional perspective structural diagram of a feedback assembly in a comprehensive testing device for an electric actuator;

[0027] Figure 7 The present invention provides a schematic diagram of a cross-sectional three-dimensional structure of a fixed column in a comprehensive testing device for an electric actuator;

[0028] Figure 8 The present invention provides a schematic cross-sectional perspective structural diagram of a docking block in a comprehensive testing device for an electric actuator;

[0029] Figure 9This is a schematic diagram of the main three-dimensional structure of a movable disk in a comprehensive testing device for an electric actuator proposed by the present invention;

[0030] Figure 10 For the present invention Figure 5 A magnified partial view of point A in the middle.

[0031] In the figure: 1. backing plate; 2. operating table; 3. first adjustment slot; 4. first adjustment block; 5. clamping plate; 6. first screw; 7. adjustment knob; 8. second adjustment slot; 9. second screw; 10. second adjustment block; 11. fixing plate; 12. oil tank; 13. oil filling pipe; 14. scale slot; 15. scale bar; 16. pointer; 17. third screw; 18. through-hole; 19. guide plate; 20. limit slot; 21. adjustment plate; 22. fixing column; 23. , docking block; 24, annular groove; 25, annular ring; 26, cylindrical cavity; 27, circular plate; 28, first spring; 29, hexagonal rod; 30, inner cavity; 31, movable disk; 32, arc groove; 33, annular slide; 34, pressing block; 35, adjusting cavity; 36, hexagonal plate; 37, second spring; 38, guide rod; 39, buffer cavity; 40, side port; 41, guide hole; 42, oil inlet hole; 43, docking bayonet; 44, contact block; 45, oil outlet hole. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0033] See also Figure 1-10 The present invention provides a technical solution: a comprehensive testing device for an electric actuator, comprising a backing plate 1, an operating table 2 is fixed on the top of the backing plate 1, a first adjusting slot 3 is provided on the top of the operating table 2 near one side edge, a second adjusting slot 8 is provided on the top of the backing plate 1, a second adjusting block 10 is slidably connected inside the second adjusting slot 8, a fixing plate 11 is fixed on the top of the second adjusting block 10, an oil tank 12 is fixed on the top of the fixing plate 11 near one side edge, an oil filling pipe 13 is connected to the top of the oil tank 12, a cylindrical cavity 26 is provided inside the fixing plate 11 and passes through to one side, an adjusting component for adjusting the upper limit of the maximum test torque is provided inside the cylindrical cavity 26;

[0034] A docking block 23 is rotatably connected between the inner walls of the cylindrical cavity 26 near one side edge, and a fixing column 22 is fixed between the inner walls of the cylindrical cavity 26 near one side of the docking block 23. A feedback component is provided inside the fixing column 22, and a protective component is provided between the bottom of the oil tank 12 and the fixing column 22. A first screw 6 is rotatably connected between the inner walls on both sides of the first adjusting groove 3, and a second screw 9 is rotatably connected between the inner walls on both sides of the second adjusting groove 8. One end of the first screw 6 and one end of the second screw 9 extend to the outside of the operating table 2, and one end of the first screw 6 and one end of the second screw 9 are fixed with an adjusting knob 7. Two first adjusting blocks 4 are slidably connected inside the first adjusting groove 3, and the two first adjusting blocks 4 are threadedly connected to the outer surface of the first screw 6, and the threaded engagement directions of the two first adjusting blocks 4 and the first screw 6 are opposite. A splint 5 is fixed on the top of the two first adjusting blocks 4, and the second adjusting block 10 is threadedly connected to the second screw 9.

[0035] The effect achieved is that the maximum torque test value of electric equipment with different power can be adjusted through the adjustment component, the feedback component can make the test equipment operate normally after the test equipment reaches the maximum test torque, and the protective component can prevent the docking part of the feedback component from being worn during the normal operation of the test equipment after reaching the maximum torque. When the entire device is in use, the first screw 6 is rotated by the adjustment knob 7 to drive the two clamps 5 to clamp the electric equipment to be tested, and then the second screw 9 is driven to make the fixing plate 11 move toward one end of the electric equipment to be tested until the output end of the electric equipment is inserted into the docking bayonet 43 on the docking block 23. When adjusting, the threaded engagement direction between the two first adjustment blocks 4 and the first screw 6 is opposite, so that when the first screw 6 is rotated, the two first adjustment blocks 4 can be driven to move relative to each other.

[0036] like Figure 1 、 Figure 2 、 Figure 3 and Figure 5 As shown, the adjustment assembly includes an adjustment plate 21, which is slidably connected to the inside of the cylindrical cavity 26. Limit grooves 20 are provided on both sides of the inner walls of the cylindrical cavity 26. Both sides of the adjustment plate 21 are correspondingly slidably engaged in the inside of the limit grooves 20. One side of the adjustment plate 21 is rotatably connected to the third screw 17. One end of the third screw 17 is threaded through the outside of the fixed plate 11. A scale groove 14 is provided on the top of the fixed plate 11. The inner bottom surface of the scale groove 14 is provided with scale bars 15 near the two side edges. The inner bottom surface of the scale groove 14 is provided with a through-hole 18 that penetrates into the inside of the cylindrical cavity 26. A guide plate 19 is fixed to the outer surface of the adjustment plate 21. The guide plate 19 is located inside the through-hole 18, and the top of the guide plate 19 extends to the inside of the scale groove 14. A pointer 16 is fixed to the top of the guide plate 19, and a first spring 28 is fixed to the other side of the adjustment plate 21.

[0037] The effect achieved is that by rotating the third screw 17, the adjustment plate 21 is pushed to slide, thereby changing the pressing force on the first spring 28, and then changing the support strength of the feedback component, so as to achieve the purpose of adjusting the maximum test torque of the test equipment. While pushing the adjustment plate 21 to slide, the guide plate 19 will drive the pointer 16 to slide. When the pointer 16 slides, the value on the corresponding scale bar 15 will change. People can obtain the maximum torque of the adjustment by observing the change in the value.

[0038] like Figure 5-10 As shown, the feedback component includes a movable disk 31, an inner cavity 30 is opened inside the fixed column 22, and the movable disk 31 is slidably arranged inside the inner cavity 30. A hexagonal rod 29 is fixed to one side of the movable disk 31, and one end of the hexagonal rod 29 slides through the outside of the fixed column 22, and a circular plate 27 is fixed to one end of the hexagonal rod 29. One side of the circular plate 27 and one end of the first spring 28 are fixed to each other. An annular slide 33 is opened on one side of the fixed column 22, and a plurality of pressing blocks 34 are fixed to the other side of the movable disk 31 at equal distances along the circumferential direction. One end of the plurality of pressing blocks 34 slides through the inside of the annular slide 33, and one side of the plurality of pressing blocks 34 is inclined. 1 has an outer surface edge near the hexagonal rod 29 that is inclined, an outer surface of the movable disk 31 is provided with an arc groove 32, an annular groove 24 is provided between the inner walls of the cylindrical cavity 26 near one edge, an annular ring 25 is fixed on the outer surface of the docking block 23 that is engaged with the inner part of the annular groove 24, a docking bayonet 43 is provided on one side outer surface of the docking block 23, and a plurality of contact blocks 44 are fixed to the outer surface of the other side of the docking block 23 at equal intervals along the circumferential direction, one side of the plurality of contact blocks 44 are all inclined, one end of the plurality of contact blocks 44 slides and extends to the interior of the annular slide 33, and the inclined surfaces of the plurality of contact blocks 44 correspond to the inclined surfaces of the pressing block 34 and fit each other.

[0039] The effect achieved is that when the test equipment drives the docking block 23 to rotate, since the inclined surface of the contact block 44 corresponds to the inclined surface of the pressing block 34 and fits each other, the mutual constraint of the inclined surfaces can be released when it reaches the maximum torque. The pressing block 34 can be pushed toward the first spring 28 by the push of the inclined surface, and the movable disk 31 will also be driven to slide to one side, so that the bottom of the guide rod 38 is engaged in the arc groove 32, limiting the movable disk 31 and triggering the protection component to work.

[0040] like Figure 2 、 Figure 5 、 Figure 6 and Figure 10As shown, the protective assembly includes a guide rod 38, an adjustment chamber 35 is opened inside the fixing plate 11 above the fixing column 22, the guide rod 38 is located inside the adjustment chamber 35, the top of the guide rod 38 slides through the inner bottom surface of the oil tank 12, the bottom of the guide rod 38 slides through the inside of the cylindrical cavity 26, and the bottom of the guide rod 38 and the inclined surface on the outer surface of the movable disk 31 fit each other, a hexagonal plate 36 is fixed to the outer surface of the guide rod 38, the outer surface of the hexagonal plate 36 slides and fits with the outer surface of the adjustment chamber 35, a second spring 37 is fixed between the top of the hexagonal plate 36 and the inner top surface of the adjustment chamber 35, and the inner portion of the guide rod 38 is opened near the top edge. There is a buffer chamber 39, and the inner wall of the buffer chamber 39 is equidistantly provided with multiple side openings 40 that penetrate to the outer surface of the guide rod 38 in the circumferential direction. A guide hole 41 is provided on the inner bottom surface of the buffer chamber 39, and the bottom of the guide hole 41 penetrates to the outer surface of the guide rod 38 near the bottom edge. An oil inlet hole 42 is provided inside the fixed plate 11 below the oil tank 12, and one end of the oil inlet hole 42 penetrates into the inside of the annular slide 33, and the other end of the oil inlet hole 42 penetrates to the part that fits with the outer surface of the guide rod 38, and the other end of the oil inlet hole 42 is offset relative to the lower outlet of the guide hole 41. An oil outlet hole 45 that penetrates into the inside of the annular slide 33 is provided at the bottom of the fixed plate 11.

[0041] The effect achieved is that the movable disk 31 slides to one side and lifts the guide rod 38 upward under the action of the inclined surface at the edge. During the lifting process, the side port 40 on the outer surface of the guide rod 38 is lifted to the inside of the oil tank 12. At this time, the oil inside the oil tank 12 will enter the buffer chamber 39 from the side port 40, and then enter the oil inlet hole 42 through the guide hole 41 inside the buffer chamber 39, and finally enter the annular slide 33 from the oil inlet hole 42 to lubricate the rotation of multiple contact blocks 44 to prevent dry friction. The lubricated oil is discharged from the annular slide 33 through the oil outlet hole 45. During the upward lifting process of the guide rod 38, the lower opening of the guide hole 41 will be connected to the side opening of the oil inlet hole 42. When the guide rod 38 is not lifted upward, the lower opening of the guide hole 41 is offset from the side opening of the oil inlet hole 42, and the side opening of the oil inlet hole 42 is closed under the action of the outer surface of the guide rod 38.

[0042] Working principle: This device converts the torsional moment generated when the electric device rotates into a horizontal thrust on the feedback component by making the inclined surface of the contact block 44 correspond to the inclined surface of the pressing block 34 and fit each other, so that the adjusting component can be used to test whether the adjusted maximum torque has been reached. The conversion size between the torque force and the horizontal thrust on the feedback component is related to the inclination of the inclined surface, and the value can be obtained through force analysis. In actual use, it is first necessary to insert the output end of the electric device into the docking bayonet 43 on the docking block 23, and then when the electric device rotates, it will drive the docking block 23 to rotate. When the torsional torque of the electric device reaches the maximum torque set by the adjusting component, the mutual constraint of the inclined surface between the contact block 44 and the pressing block 34 can be released. The pressing block 34 can be pushed toward the first spring 28 by the push of the inclined surface, and the movable disk 31 will also be driven to slide to one side, so that the bottom of the guide rod 38 is engaged in the arc groove 32 to limit the movable disk 31. The oil in the oil tank 12 then flows into the buffer chamber 39 through the side opening 40 and then into the oil inlet hole 42 through the guide hole 41 inside the buffer chamber 39, and finally into the annular slide 33 from the oil inlet hole 42, lubricating the rotation of the multiple contact blocks 44 to prevent dry friction. The lubricated oil is discharged from the annular slide 33 through the oil outlet hole 45. When the test is completed and the oil is reset, since the inner bottom surface of the arc groove 32 is an arc surface, the constraint force on the bottom of the guide rod 38 has a maximum value. When the horizontal thrust on the movable disk 31 is greater than the maximum value of the constraint, the guide rod 38 can slide out from the inner bottom surface of the arc groove 32. At this time, it is only necessary to rotate the maximum test torque of the adjustment component to the maximum value, and the movable disk 31 can be pushed to the side of the annular slide 33 by the elastic force of the first spring 28, thereby releasing the constraint between the arc groove 32 and the bottom of the guide rod 38, completing the reset of the entire device, and facilitating subsequent reuse.

[0043] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A comprehensive testing device for an electric actuator, characterized in that: The utility model comprises a backing plate (1), an operating table (2) is fixed on the top of the backing plate (1), a first adjusting groove (3) is provided on the top of the operating table (2) near one side edge, a second adjusting groove (8) is provided on the top of the backing plate (1), a second adjusting block (10) is slidably connected inside the second adjusting groove (8), a fixing plate (11) is fixed on the top of the second adjusting block (10), an oil tank (12) is fixed on the top of the fixing plate (11) near one side edge, an oil filling pipe (13) is connected to the top of the oil tank (12), a cylindrical cavity (26) is provided inside the fixing plate (11) and extends to one side, and an adjusting component for adjusting the upper limit of the maximum test torque is provided inside the cylindrical cavity (26); A docking block (23) is rotatably connected between the inner walls of the cylindrical cavity (26) near one side edge, a fixed column (22) is fixed between the inner walls of the cylindrical cavity (26) near one side of the docking block (23), a feedback component is provided inside the fixed column (22), a protective component is provided between the bottom of the oil tank (12) and the fixed column (22), the adjustment component includes an adjustment plate (21), the adjustment plate (21) is slidably connected to the inside of the cylindrical cavity (26), both sides of the inner walls of the cylindrical cavity (26) are provided with limiting grooves (20), both sides of the adjustment plate (21) are correspondingly slidably engaged inside the limiting grooves (20), and one side of the adjustment plate (21) is rotatably connected to a third screw (17 ), one end of the third screw (17) is threadedly penetrated to the outside of the fixed plate (11), a scale groove (14) is provided on the top of the fixed plate (11), and scale bars (15) are provided on the inner bottom surface of the scale groove (14) near the edges on both sides, and a through-hole (18) is provided on the inner bottom surface of the scale groove (14) that penetrates to the inside of the cylindrical cavity (26), a guide plate (19) is fixed to the outer surface of the adjustment plate (21), the guide plate (19) is located inside the through-hole (18), and the top of the guide plate (19) extends to the inside of the scale groove (14), a pointer (16) is fixed to the top of the guide plate (19), and a first spring (28) is fixed to the other side of the adjustment plate (21); The feedback component includes a movable disk (31), an inner cavity (30) is provided inside the fixed column (22), and the movable disk (31) is slidably arranged inside the inner cavity (30), a hexagonal rod (29) is fixed on one side of the movable disk (31), one end of the hexagonal rod (29) slides through the outside of the fixed column (22), a circular plate (27) is fixed on one end of the hexagonal rod (29), one side of the circular plate (27) and one end of the first spring (28) are fixed to each other, an annular slideway (33) is provided on one side of the fixed column (22), and a plurality of pressing blocks (34) are fixed at equal distances along the circumferential direction on the other side of the movable disk (31), one end of each of the pressing blocks (34) slides through the inside of the annular slideway (33), and one side of each of the pressing blocks (34) is inclined. The outer surface edge of the movable disk (31) is inclined near the hexagonal rod (29), and the outer surface of the movable disk (31) is provided with an arc groove (32). An annular groove (24) is provided between the inner walls of the cylindrical cavity (26) near one side edge. The outer surface of the docking block (23) is fixed with an annular ring (25) that is engaged with the inside of the annular groove (24). A docking bayonet (43) is provided on the outer surface of one side of the docking block (23). A plurality of contact blocks (44) are fixed to the outer surface of the other side of the docking block (23) at equal intervals along the circumferential direction. One side of the plurality of contact blocks (44) is inclined, and one end of the plurality of contact blocks (44) slides and extends to the inside of the annular slideway (33). The inclined surfaces of the plurality of contact blocks (44) correspond to and fit with the inclined surfaces of the pressing block (34).

2. The comprehensive testing device for an electric actuator according to claim 1, characterized in that: A first screw rod (6) is rotatably connected between the inner walls on both sides of the first adjustment groove (3), and a second screw rod (9) is rotatably connected between the inner walls on both sides of the second adjustment groove (8). One end of the first screw rod (6) and one end of the second screw rod (9) extend to the outside of the operating table (2). One end of the first screw rod (6) and one end of the second screw rod (9) are fixed with an adjustment knob (7). Two first adjustment blocks (4) are slidably connected inside the first adjustment groove (3). The two first adjustment blocks (4) are threadedly connected to the outer surface of the first screw rod (6), and the screw thread engagement directions between the two first adjustment blocks (4) and the first screw rod (6) are opposite. A clamping plate (5) is fixed to the top of the two first adjustment blocks (4). The second adjustment block (10) is threadedly connected to the second screw rod (9).

3. The comprehensive testing device for an electric actuator according to claim 2, characterized in that: The protection assembly includes a guide rod (38), an adjustment cavity (35) is opened inside the fixing plate (11) above the fixing column (22), the guide rod (38) is located inside the adjustment cavity (35), the top of the guide rod (38) slides through the inner bottom surface of the oil tank (12), the bottom of the guide rod (38) slides through the inside of the cylindrical cavity (26), and the bottom of the guide rod (38) is in contact with the inclined surface on the outer surface of the movable plate (31).

4. The comprehensive testing device for an electric actuator according to claim 3, characterized in that: A hexagonal plate (36) is fixed to the outer surface of the guide rod (38), and the outer surface of the hexagonal plate (36) is slidably fitted with the outer surface of the adjustment cavity (35). A second spring (37) is fixed between the top of the hexagonal plate (36) and the inner top surface of the adjustment cavity (35). A buffer cavity (39) is provided inside the guide rod (38) near the top edge, and a plurality of side openings (40) are provided on the inner wall of the buffer cavity (39) at equal intervals along the circumferential direction and penetrate the outer surface of the guide rod (38).

5. The comprehensive testing device for an electric actuator according to claim 4, characterized in that: A guide hole (41) is provided on the inner bottom surface of the buffer chamber (39), and the bottom of the guide hole (41) penetrates to the outer surface of the guide rod (38) near the bottom edge. An oil inlet hole (42) is provided inside the fixing plate (11) below the oil tank (12), and one end of the oil inlet hole (42) penetrates to the inside of the annular slideway (33), and the other end of the oil inlet hole (42) penetrates to the part where it fits with the outer surface of the guide rod (38), and the other end of the oil inlet hole (42) is offset and opposite to the lower outlet of the guide hole (41). An oil outlet hole (45) is provided on the bottom of the fixing plate (11) and penetrates to the inside of the annular slideway (33).

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