Electromechanical actuator

Abstract

The invention discloses an electromechanical actuator, and particularly relates to the technical field of electromechanical actuators, which comprises an actuator body, and telescopic supporting pieces are arranged at the four ends of the top of the bottom frame, and a fixing plate is connected between the top ends of the four telescopic supporting pieces. According to the invention, the moving plate is controlled to drive the actuator body to move left and right, so that the horizontal position of the actuator body can be adjusted, and the output end of the actuator body can accurately face a component joint of test equipment; the angle of the output end of the actuator body can be accurately adjusted by controlling the actuator body to rotate, so that the output end can be accurately aligned with a test equipment component joint; by adjusting the height position of the actuator body, the output end of the actuator body is further aligned with the component connector, the output end of the actuator body can be quickly and accurately in butt joint with the equipment component connector, operation is easy and convenient, repeated disassembly and assembly are not needed, and the using effect of the device is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of electromechanical actuators, and particularly relates to an electromechanical actuator. Background Art

[0002] An electromechanical actuator is a key component for implementing active vibration control and an important link in an active control system. Also known as a shaker, an electromechanical actuator is used for dynamic tests and is the force output device in dynamic tests. Its function is to apply a control force to a controlled object according to a determined control law. It is a typical power-by-wire actuator that can directly convert electrical energy into mechanical energy. It directly or indirectly controls the movement of a load by controlling the operation of a motor to achieve target position control.

[0003] Currently, when conducting dynamic tests through an electromechanical actuator, it is often necessary to connect the output end of the actuator to equipment components. In different tests, although the electromechanical actuator is often already installed and fixed by bolts, due to the position deviation of the joints of different equipment components, it is difficult to ensure the accurate docking of the position of the output end of the electromechanical actuator. Moreover, the overall volume and weight of the electromechanical actuator are also relatively large, making it very difficult and inconvenient to disassemble and adjust again, which greatly affects the actual use effect of the device. Summary of the Invention

[0004] The purpose of the present invention is to provide an electromechanical actuator. By controlling the smooth movement of a moving plate on a fixed plate, the moving plate can drive the actuator body to move left and right, thereby adjusting the horizontal position of the actuator body, so that the output end of the actuator body can accurately face the component joint of the test equipment. And by controlling the L-shaped connecting rod to drive the push-pull plate to slide on the moving plate, the connecting arm can drive the actuator body to rotate on the baffle, and then accurately adjust the angle of the output end of the actuator body, so that the output end can accurately align with the component joint of the test equipment. By controlling the fixed plate to drive the actuator body to rise and fall, the height position of the actuator body can be adjusted further to align the output end of the actuator body with the component joint. With the combined action of the above structures, in different tests, the output end of the actuator body can be quickly and accurately docked on the equipment component joint, with simple and convenient operation, without repeated disassembly and assembly, greatly improving the use effect of the device to solve the above deficiencies in the technology.

[0005] To achieve the above purpose, the present invention provides the following technical solution: An electromechanical actuator, comprising:

[0006] An actuator body;

[0007] A chassis, telescopic supports are provided at the four ends of the top of the chassis, a fixing plate is connected between the tops of the four telescopic supports, a sliding cavity is provided in the middle of the top side of the fixing plate, a movable block is provided inside the sliding cavity, and a first moving mechanism is provided in the sliding cavity, and the movable block is driven to move by the first moving mechanism;

[0008] A moving plate, the moving plate is arranged on the top side of the fixing plate, and the top end of the movable block extends outside the sliding cavity and is fixedly connected to the moving plate. Two baffles are fixed at one end of the top of the moving plate. The inner sides of the two baffles are both rotatably connected with a first connecting shaft, and one end of the actuator body is fixedly connected between the two first connecting shafts;

[0009] A push-pull plate is arranged on the top side of the moving plate. Two connecting seats are symmetrically connected to one end of the actuator body relative to the first connecting shaft. Connecting arms are rotatably connected between the two connecting seats and the push-pull plate through rotating shafts. A cavity is arranged inside the moving plate. A movable first positioning post is arranged inside the cavity. One end of the first positioning post is fixed with an L-shaped connecting handle. One end of the L-shaped connecting handle extends outside the moving plate and is connected to the push-pull plate. A slideway matching the L-shaped connecting handle is arranged on the top side of the moving plate. A second moving mechanism is arranged in the cavity, and the first positioning post is driven to move by the second moving mechanism.

[0010] Preferably, two first vertical plates are symmetrically fixed at both ends of the top side of the chassis. Two rotating rods are symmetrically connected between the two first vertical plates through bearings. First rotating handles are symmetrically connected to both ends of the two rotating rods. One end of the first rotating handle relative to the rotating rod is movably connected with a second rotating handle. One end of the second rotating handle relative to the first rotating handle is movably connected to the fixing plate through a rotating shaft. A driving device is arranged between the ends of the two rotating rods.

[0011] Preferably, the driving device includes driven gears symmetrically fixed at one end of the two rotating rods, and the two driven gears mesh with each other. Two second vertical plates are fixed on the top of the chassis close to the driven gears. A worm is rotatably connected between the two second vertical plates through a bearing. One end of the worm passes through the second vertical plate and is connected with a handle. A worm gear is fixed on one end of one of the rotating rods close to the driven gear, and the worm gear meshes with the worm.

[0012] Preferably, the telescopic support includes support cylinders fixedly connected to the four ends of the top side of the chassis. Support columns are fixedly connected to the four ends of the bottom side of the fixing plate, and the support columns are inserted and matched in the support cylinders.

[0013] Preferably, limiting blocks are symmetrically fixed on both sides of the bottom end of the support column, and limiting grooves matching the limiting blocks are symmetrically arranged on both sides inside the support cylinder.

[0014] Preferably, the first moving mechanism includes a first threaded rod rotatably connected to the inside of a sliding cavity through a bearing. The movable block is threadedly engaged with the outside of the first threaded rod. One end of the first threaded rod extends outside the fixed plate and is fixed with a first fixed handle. A sliding assembly is provided between the moving plate and the fixed plate.

[0015] Preferably, the sliding assembly includes T-shaped sliders symmetrically fixed to both ends of the bottom side of the moving plate. T-shaped sliding grooves are symmetrically formed at both ends of the top side of the fixed plate, and the two T-shaped sliders are respectively slidably connected to the two T-shaped sliding grooves.

[0016] Preferably, the second moving mechanism includes a second positioning post disposed on one side of the first positioning post within the cavity. A second connecting shaft is rotatably connected to the middle of the inside of the cavity through a bearing. A transmission gear is fixed to one end of the second connecting shaft. Tooth plates meshing with the transmission gear are connected to the inner sides of the first positioning post and the second positioning post. A second threaded rod is rotatably connected to one end of the inside of the cavity through a bearing. The second positioning post is threadedly engaged with the outside of the second threaded rod. One end of the second threaded rod extends outside the moving plate and is provided with a second fixed handle. A guiding assembly is provided between the push-pull plate and the moving plate.

[0017] Preferably, the guiding assembly includes guide blocks symmetrically fixed to both ends of the bottom side of the push-pull plate. Guide grooves matching the guide blocks are symmetrically formed on both sides of the top of the moving plate.

[0018] Preferably, mounting seats are symmetrically provided on both sides of the end of the chassis, and mounting holes are provided on the mounting seats.

[0019] In the above technical solution, the technical effects and advantages provided by the present invention are as follows:

[0020] By providing structures such as a fixed plate, a moving plate, a sliding cavity, a movable block, and a first moving mechanism, and with the cooperation of the sliding assembly, the movable block can drive the moving plate to move smoothly on the fixed plate, that is, the moving plate can drive the actuator body to move left and right, so as to adjust the horizontal position of the actuator body, enabling the output end of the actuator body to accurately face the component joint of the test equipment.

[0021] And by providing structures such as a push-pull plate, a connecting arm, an L-shaped connecting handle, a first positioning post, and a second moving mechanism between the actuator body and the moving plate, the L-shaped connecting handle can be controlled to drive the push-pull plate to slide on the moving plate, so that the connecting arm can drive the actuator body to rotate on the baffle, and further accurately adjust the angle of the output end of the actuator body, enabling the output end to accurately align with the component joint of the test equipment.

[0022] In addition, by arranging multiple sets of structures such as the first rotating handle, the second rotating handle, and the driving device between the fixing plate and the chassis, and under the support and limitation of multiple telescopic support members, multiple sets of second rotating handles can drive the fixing plate to lift simultaneously, enabling the fixing plate to drive the actuator body to lift through the moving plate, thereby adjusting the height position of the actuator body to further align the output end of the actuator body with the component joint;

[0023] In summary, with the combined cooperation of the above structures, during different tests, the output end of the actuator body can be quickly and accurately docked on the equipment component joint. The operation is simple and convenient, without repeated disassembly and assembly, greatly improving the use effect of the device. Brief Description of the Drawings

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0025] Figure 1 One of the overall structural diagrams of the present invention;

[0026] Figure 2 One of the overall structural diagrams of the present invention;

[0027] Figure 3 Structural diagram of the connection between the chassis and the moving plate of the present invention;

[0028] Figure 4 Structural diagram of the connection between the chassis and the fixing plate of the present invention;

[0029] Figure 5 Longitudinal sectional view of the fixing plate of the present invention;

[0030] Figure 6 Structural diagram of the connection between the rotating rod and the driving device of the present invention;

[0031] Figure 7 Stereoscopic structural diagram of the moving plate when viewed from below of the present invention;

[0032] Figure 8 Transverse sectional view of the moving plate of the present invention;

[0033] Figure 9 Structural diagram of the connection between the push-pull plate, the first positioning column, and the second positioning column of the present invention;

[0034] Figure 10 Structural diagram of the connection between the first positioning column and the second positioning column of the present invention;

[0035] Figure 11 This is a three-dimensional structural schematic diagram of the push-pull plate of the present invention when viewed from below;

[0036] Figure 12 This is a longitudinal sectional view of the chassis and telescopic support member of the present invention;

[0037] Figure 13 This is a schematic diagram of the connection structure between the support column and the support cylinder of the present invention.

[0038] Explanation of reference numerals:

[0039] 1, chassis; 2, mounting seat; 3, fixed plate; 4, moving plate; 5, actuator body;

[0040] 6, telescopic support member; 60, support column; 61, support cylinder; 600, limit block; 610, limit groove;

[0041] 7, baffle; 8, first connecting shaft; 9, first vertical plate; 10, rotating rod; 11, first rotating handle; 12, second rotating handle;

[0042] 13, driving device; 130, driven gear; 131, worm gear; 132, second vertical plate; 133, worm; 134, handle;

[0043] 14, sliding cavity; 15, movable block; 16, first threaded rod; 17, first fixed handle; 18, T-shaped slider; 19, T-shaped sliding groove; 20, cavity groove; 21, first positioning column; 22, L-shaped connecting handle; 23, sliding track; 24, push-pull plate; 25, connecting seat; 26, connecting arm; 27, second positioning column; 28, toothed plate; 29, second connecting shaft; 30, transmission gear; 31, second threaded rod; 32, second fixed handle; 33, guide block; 34, guide groove. Detailed implementation manners

[0044] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further introduced in detail below in conjunction with the accompanying drawings.

[0045] The present invention provides an electromechanical actuator as shown in Figures 1 - 13 and includes:

[0046] Actuator body 5;

[0047] Chassis 1, telescopic support members 6 are provided at the four ends of the top of the chassis 1, a fixed plate 3 is connected between the tops of the four telescopic support members 6, a sliding cavity 14 is provided in the middle of the top side of the fixed plate 3, a movable block 15 that can move is provided inside the sliding cavity 14, and a first moving mechanism is provided in the sliding cavity 14, and the movable block 15 is driven to move through the first moving mechanism;

[0048] On both sides of the end of the chassis 1, mounting seats 2 are symmetrically arranged, and mounting holes are provided on the mounting seats 2.

[0049] Specifically refer to Figure 4 , Figure 5 and Figure 7 As shown, the first moving mechanism includes a first threaded rod 16 rotatably connected to the inside of a sliding cavity 14 through a bearing. A movable block 15 is threadedly engaged outside the first threaded rod 16. One end of the first threaded rod 16 extends outside the fixing plate 3 and is fixed with a first fixing handle 17. A sliding assembly is provided between the moving plate 4 and the fixing plate 3.

[0050] The sliding assembly includes T-shaped sliders 18 symmetrically fixed at both ends of the bottom side of the moving plate 4. T-shaped sliding grooves 19 are symmetrically formed at both ends of the top side of the fixing plate 3, and the two T-shaped sliders 18 are respectively slidably connected in the two T-shaped sliding grooves 19. Based on this, by providing the T-shaped sliders 18 and the T-shaped sliding grooves 19, the moving plate 4 can be stably moved on the fixing plate 3.

[0051] By turning the first fixing handle 17, the first fixing handle 17 can drive the first threaded rod 16 to rotate. Then, the first threaded rod 16 drives the movable block 15 to slide in the sliding cavity 14. And with the cooperation of the sliding assembly, the movable block 15 can drive the moving plate 4 to move smoothly in a straight line on the fixing plate 3, that is, the moving plate 4 can drive the actuator body 5 to move left and right, so as to adjust the horizontal position of the actuator body 5, so that the output end of the actuator body 5 can accurately face the component joint of the test equipment.

[0052] The moving plate 4 is arranged on the top side of the fixing plate 3, and the top end of the movable block 15 extends outside the sliding cavity 14 and is fixedly connected to the moving plate 4. Two baffle plates 7 are fixed at one end of the top of the moving plate 4. A first connecting shaft 8 is rotatably connected to the inner sides of the two baffle plates 7. One end of the actuator body 5 is fixedly connected between the two first connecting shafts 8;

[0053] A push-pull plate 24 is arranged on the top side of the moving plate 4. Two connecting seats 25 are symmetrically connected to one end of the actuator body 5 relative to the first connecting shaft 8. And connecting arms 26 are rotatably connected between the two connecting seats 25 and the push-pull plate 24 through rotating shafts. A cavity 20 is arranged inside the moving plate 4. A movable first positioning column 21 is arranged inside the cavity 20. One end of the first positioning column 21 is fixed with an L-shaped connecting handle 22. One end of the L-shaped connecting handle 22 extends outside the moving plate 4 and is connected to the push-pull plate 24. A sliding groove 23 matching the L-shaped connecting handle 22 is formed on the top side of the moving plate 4. A second moving mechanism is arranged in the cavity 20, and the first positioning column 21 is driven to move by the second moving mechanism.

[0054] Specifically refer to Figure 3 , Figure 8 , Figure 9 ,Figure 10 and Figure 11 As shown in Figure 11 , the second moving mechanism includes a second positioning post 27 disposed on one side of the first positioning post 21 within the cavity 20. The middle of the interior of the cavity 20 is rotatably connected by a bearing to a second connecting shaft 29. One end of the second connecting shaft 29 is fixed with a transmission gear 30. Inner sides of both the first positioning post 21 and the second positioning post 27 are connected with a toothed plate 28 meshing with the transmission gear 30. One end of the interior of the cavity 20 is rotatably connected by a bearing to a second threaded rod 31. The second positioning post 27 is threadedly engaged outside the second threaded rod 31. One end of the second threaded rod 31 extends outside the moving plate 4 and is provided with a second fixed handle 32. A guiding assembly is provided between the push-pull plate 24 and the moving plate 4.

[0055] The guiding assembly includes guide blocks 33 symmetrically fixed at both ends of the bottom side of the push-pull plate 24. Guide grooves 34 matching the guide blocks 33 are symmetrically formed on both sides of the top of the moving plate 4. Based on this, by providing the guide blocks 33 and the guide grooves 34, the stable movement of the push-pull plate 24 on the moving plate 4 can be ensured.

[0056] By turning the second fixed handle 32, the second fixed handle 32 can drive the second threaded rod 31 to rotate. Then, the second threaded rod 31 drives the second positioning post 27 to move, causing the second positioning post 27 to drive the toothed plate 28 to move. After that, the toothed plate 28 drives the transmission gear 30 to rotate, enabling the transmission gear 30 to drive the first positioning post 21 to move through another toothed plate 28. Then, the first positioning post 21 drives the L-shaped connecting handle 22 to slide along the slideway 23, thereby enabling the L-shaped connecting handle 22 to drive the push-pull plate 24 to move. After that, the push-pull plate 24 drives the two connecting arms 26 to rotate, so that the actuator body 5 can drive the first connecting shaft 8 to rotate on the baffle 7, and further accurately adjust the angle of the output end of the actuator body 5, enabling the output end to accurately dock with the joint of the test equipment component.

[0057] At both ends of the top side of the chassis 1, first vertical plates 9 are symmetrically fixed. Between the two first vertical plates 9, two rotating rods 10 are symmetrically connected by bearings. At both ends of the two rotating rods 10, first rotating handles 11 are symmetrically connected. One end of the first rotating handle 11 relative to the rotating rod 10 is movably connected to a second rotating handle 12. One end of the second rotating handle 12 relative to the first rotating handle 11 is pivotally connected to the fixing plate 3 through a rotating shaft. A driving device 13 is provided between the ends of the two rotating rods 10.

[0058] Specifically refer to Figure 1 、 Figure 5 and Figure 6As shown in the figure, the driving device 13 includes driven gears 130 symmetrically fixed to one end of two rotating rods 10, and the two driven gears 130 mesh with each other. On one side of the top of the chassis 1 close to the driven gears 130, two second vertical plates 132 are fixed. A worm 133 is rotatably connected between the two second vertical plates 132 through a bearing. One end of the worm 133 passes through the second vertical plate 132 and is connected to a handle 134. A worm gear 131 is fixed to one side of the end of one of the rotating rods 10 close to the driven gear 130, and the worm gear 131 meshes with the worm 133.

[0059] By turning the handle 134, the handle 134 can drive the worm 133 to rotate. Then the worm 133 drives the meshing worm gear 131 to rotate, causing the worm gear 131 to drive the rotating rod 10 to rotate. After that, under the mutual meshing of the two driven gears 130, the two rotating rods 10 can be driven to rotate inwards or outwards simultaneously. Then the rotating rod 10 can drive the first rotating handle 11 to rotate, and the first rotating handle 11 can drive the second rotating handle 12 to rotate. And under the support and limitation of a plurality of telescopic support members 6, the four groups of second rotating handles 12 can drive the fixed plate 3 to lift simultaneously. Then the fixed plate 3 can drive the actuator body 5 to lift through the moving plate 4, so as to adjust the height position of the actuator body 5, and further align the output end of the actuator body 5 with the component joint.

[0060] Specifically, it can be seen from Figure 12 and Figure 13 that the telescopic support member 6 includes support cylinders 61 fixedly connected to the four ends of the top side of the chassis 1. Support columns 60 are fixedly provided at the four ends of the bottom side of the fixed plate 3, and the support columns 60 are inserted and matched in the support cylinders 61.

[0061] On both sides of the bottom end of the support column 60, limit blocks 600 are symmetrically fixed. On both sides of the inside of the support cylinder 61, limit grooves 610 matching the limit blocks 600 are symmetrically opened. Based on this, by providing the limit blocks 600 and the limit grooves 610, the support column 60 can be prevented from detaching from the support cylinder 61.

[0062] By providing structures such as the first moving mechanism, the second moving mechanism, and the driving device 13, in different tests, the output end of the actuator body 5 can be quickly and accurately docked on the equipment component joint. The operation is simple and convenient, without repeated disassembly and assembly, greatly improving the use effect of the device.

[0063] Only some exemplary embodiments of the present invention are described by way of illustration above. Undoubtedly, for those of ordinary skill in the art, without departing from the spirit and scope of the present invention, the described embodiments can be modified in various different ways. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the protection scope of the claims of the present invention.

Claims

1. An electromechanical actuator, characterized in that: include: Actuator body (5); A base frame (1), wherein four ends of the top of the base frame (1) are each provided with a telescopic support member (6), a fixed plate (3) is connected between the top ends of the four telescopic support members (6), a sliding cavity (14) is provided in the middle of the top side of the fixed plate (3), a movable movable block (15) is provided inside the sliding cavity (14), and a first movable mechanism is provided inside the sliding cavity (14), and the movable block (15) is driven to move by the first movable mechanism; A movable plate (4), wherein the movable plate (4) is arranged on the top side of the fixed plate (3), and the top end of the movable block (15) extends outside the sliding cavity (14) and is fixedly connected to the movable plate (4), two baffles (7) are fixed to one end of the top of the movable plate (4), and the inner sides of the two baffles (7) are rotatably connected to a first connecting shaft (8), and one end of the actuator body (5) is fixedly connected between the two first connecting shafts (8); A push-pull plate (24) is arranged on the top side of the movable plate (4); two connecting seats (25) are symmetrically connected to one end of the actuator body (5) relative to the first connecting shaft (8); and connecting arms (26) are rotatably connected to the two connecting seats (25) and the push-pull plate (24) via a rotating shaft; a cavity (20) is arranged inside the movable plate (4); a movable first positioning column (21) is arranged inside the cavity (20); an L-shaped connecting handle (22) is fixed to one end of the first positioning column (21); one end of the L-shaped connecting handle (22) extends to the outside of the movable plate (4) and is connected to the push-pull plate (24); a slideway (23) matching the L-shaped connecting handle (22) is opened on the top side of the movable plate (4); a second moving mechanism is arranged inside the cavity (20), and the first positioning column (21) is driven to move by the second moving mechanism.

2. An electromechanical actuator according to claim 1, characterized in that: First vertical plates (9) are symmetrically fixed at both ends of the top side of the base frame (1); two rotating rods (10) are symmetrically connected between the two first vertical plates (9) via bearings; first rotating handles (11) are symmetrically connected at both ends of the two rotating rods (10); a second rotating handle (12) is movably connected to one end of the first rotating handle (11) relative to the rotating rod (10); one end of the second rotating handle (12) relative to the first rotating handle (11) is movably connected to the fixed plate (3) via a rotating shaft; and a driving device (13) is provided between the ends of the two rotating rods (10).

3. An electromechanical actuator according to claim 1, characterized in that: The driving device (13) comprises a driven gear (130) symmetrically fixed to one end of two rotating rods (10), and the two driven gears (130) are meshed with each other. Two second vertical plates (132) are fixed to the top of the base frame (1) on a side close to the driven gear (130), and a worm (133) is rotatably connected between the two second vertical plates (132) via a bearing. One end of the worm (133) passes through the second vertical plate (132) and is connected to a handle (134). A worm wheel (131) is fixed to the end of one of the rotating rods (10) on a side close to the driven gear (130), and the worm wheel (131) is meshed with the worm (133).

4. An electromechanical actuator according to claim 1, characterized in that: The telescopic support member (6) comprises a support tube (61) fixedly connected to the four ends of the top side of the base frame (1); the four ends of the bottom side of the fixed plate (3) are all fixed with support columns (60), and the support columns (60) are plugged into the support tube (61).

5. An electromechanical actuator according to claim 4, characterized in that: Limiting blocks (600) are symmetrically fixed on both sides of the bottom end of the support column (60), and limiting grooves (610) matching the limiting blocks (600) are symmetrically opened on both sides of the interior of the support tube (61).

6. An electromechanical actuator according to claim 1, characterized in that: The first moving mechanism comprises a first threaded rod (16) rotatably connected to the sliding cavity (14) via a bearing, the movable block (15) is screwed to the outside of the first threaded rod (16) via a thread, one end of the first threaded rod (16) extends to the outside of the fixed plate (3) and is fixed with a first fixed handle (17), and a sliding assembly is provided between the moving plate (4) and the fixed plate (3).

7. An electromechanical actuator according to claim 6, characterized in that: The sliding assembly comprises T-shaped sliding blocks (18) symmetrically fixed at both ends of the bottom side of the movable plate (4); T-shaped sliding grooves (19) are symmetrically provided at both ends of the top side of the fixed plate (3); and the two T-shaped sliding blocks (18) are respectively slidably connected in the two T-shaped sliding grooves (19).

8. An electromechanical actuator according to claim 1, characterized in that: The second moving mechanism comprises a second positioning column (27) arranged in the cavity (20) on one side relative to the first positioning column (21), and a second connecting shaft (29) is rotatably connected to the middle of the cavity (20) through a bearing, a transmission gear (30) is fixed to one end of the second connecting shaft (29), and the inner sides of the first positioning column (21) and the second positioning column (27) are both connected to a toothed plate (28) meshing with the transmission gear (30), one end of the cavity (20) is rotatably connected to a second threaded rod (31) through a bearing, the second positioning column (27) is connected to the outside of the second threaded rod (31) through a threaded engagement, one end of the second threaded rod (31) extends to the outside of the moving plate (4) and is provided with a second fixing handle (32), and a guide assembly is provided between the push-pull plate (24) and the moving plate (4).

9. An electromechanical actuator according to claim 8, characterized in that: The guide assembly comprises guide blocks (33) symmetrically fixed at both ends of the bottom side of the push-pull plate (24), and guide grooves (34) matching the guide blocks (33) are symmetrically provided on both sides of the top of the movable plate (4).

10. The electromechanical actuator according to claim 1, characterized in that: Mounting seats (2) are symmetrically arranged on both sides of the end of the base frame (1), and mounting holes are arranged on the mounting seats (2).

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