Automatic pressing device for motor end cover

Abstract

The invention relates to the technical field of end cover pressing, and discloses an automatic pressing device for a motor end cover, which comprises a workbench, fixed top plates are fixedly arranged at four corners of the workbench, a protective plate is arranged on the upper surface of the workbench, a rotating plate is arranged at the upper end of the protective plate, and a limiting assembly is arranged on the rotating plate; a pushing plate is slidably arranged in a cylindrical groove formed in the rotating plate, a moving plate is fixedly arranged at the lower end of the pushing plate, and a motor is arranged at the lower end of the workbench. According to the automatic press-fit device for the motor end cover, through a linkage mode, when the rotating plate is driven to rotate, the discharging plate can be driven to move, feeding of the motor end cover placed at the upper end of the fixed top plate is achieved, the multiple end covers can be separated through the limiting rods, and the situation that the end cover at the rear end slides forwards is avoided; and along with the pushing of the motor end cover, the aim of automatically discharging the pressed end cover can be achieved through the movement of the material pushing plate.

Description

Technical Field

[0001] The invention relates to the technical field of end cover pressing, in particular to an automatic pressing device for a motor end cover. Background Art

[0002] A motor is a device that converts electrical energy into mechanical energy, thereby driving the device to work. In order to ensure the overall performance and service life of the motor, it is usually necessary to add end covers on both sides of the motor to prevent dust and objects from entering the motor. In order to ensure the normal output of the motor output end, the bearing needs to be pressed into the end cover when the motor end cover is processed. After the motor end cover bearing is pressed, the close combination between the bearing and the end cover can withstand the axial force generated by the motor during operation, preventing the bearing from being damaged due to uneven force.

[0003] At present, the patent with publication number CN116488417A discloses an automatic processing device for pressing a bearing into a motor end cover, including a box body, a clamping device, a flattening device, a lubricating device and a protective device; the clamping device includes a conveying platform, a guide plate, a fixed plate, a transmission rod, a clamping plate, a limit plate and a roller, the conveying platform is installed on the inner wall of the box body, the guide plate is fixedly connected to the inner wall of the box body, the fixed plate is fixedly connected to the surface of the conveying platform, the transmission rod is slidably connected to the inner wall of the fixed plate, and the clamping plate is fixed Connected to the end of the transmission rod away from the guide plate, the limit plate is fixedly connected to the end of the transmission rod away from the clamping plate, and the roller is rotatably connected to the inner wall of the limit plate away from the transmission rod; the flattening device includes a left support plate, a pressure roller, a right support plate, a cylinder, a pressure plate, a connecting plate and a convex plate, the left support plate is fixedly connected to the inner wall of the box, the pressure roller is rotatably connected to the inner wall of the left support plate, the right support plate is fixedly connected to the inner wall of the box, the cylinder is fixedly connected to the top of the right support plate, and the pressure plate is fixedly connected to the output end of the cylinder. Through the coordinated operation of the elastic plate 1, the oil outlet cotton, the baffle, the arc plate, and the inclined block, the oil outlet cotton brushes the oil on the surface of the bearing, so that when the bearing is pressed later, the oil can play a lubricating role, so that the bearing can be pressed into the motor more smoothly. Through the coordinated operation of the slide, elastic sheet, rotating plate, lever and bump, the elastic sheet can buffer the motor to prevent the motor from bumping. At the same time, the intermittent opening of the rotating plate can realize intermittent discharge of the motor to prevent the motor from colliding and causing damage to the motor.

[0004] However, the following problems still exist during the use of the current motor end cover pressing device: When the above-mentioned device is in use, it is necessary to manually place the motor end cover and the bearing on the conveying device, and then press them together. During this process, the end cover is fixed by clamping, so the end cover is easy to slide downward due to pressing, and it needs to be manually placed, which is very inconvenient, increases the degree of worker participation, and requires manual arrangement when placing, which increases the processing steps. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides an automatic pressing device for a motor end cover, which can realize automatic feeding of the end cover during rotation and conveying through a linkage manner, no longer requiring manual participation, and can automatically push the material out through linkage, which is more convenient and quick.

[0006] The present invention provides the following technical solutions: an automatic pressing device for a motor end cover, comprising a workbench, wherein a fixed top plate is fixedly arranged at the four corners of the workbench, a protective plate is arranged on the upper surface of the workbench, and a rotating plate is arranged on the upper end of the protective plate, and a limiting component is arranged on the rotating plate; a pushing plate is slidably arranged in a cylindrical groove opened on the rotating plate, and a moving plate is fixedly arranged at the lower end of the pushing plate, a motor is arranged at the lower end of the workbench, and a first pulley group and a second pulley group are arranged at the output end of the motor through a rotating shaft, a driving wheel is coaxially arranged on the first pulley group, and a driven wheel is meshed on the side of the driving wheel, and the driven wheel is fixedly connected to the rotating plate through the rotating shaft, a bevel gear group is arranged on the rotating shaft at the output end of the motor, and a driving wheel is coaxially arranged on the bevel gear group, a third pulley group is coaxially arranged on the second pulley group, and a half-wheel tooth is coaxially arranged on the third pulley group, and a moving gear is meshed on the half-wheel tooth, a fixed rack is meshed on the side of the moving gear, and a blanking plate is arranged at the lower end of the fixed rack.

[0007] Furthermore, the limiting assembly includes a fixing ring and a support plate, and there are four fixing rings in total, the four fixing rings are arranged at equal angles on the upper surface of the rotating plate, and the support plate is fixedly installed in the fixing ring.

[0008] Furthermore, a connecting spring is provided on the upper surface of the movable plate, and the connecting spring is fixedly mounted on the lower end of the rotating plate, and the movable plate is elastically connected to the rotating plate through the connecting spring, and the lower end of the movable plate is in contact with the driving wheel. Through the above structure, the movable plate can be pushed back to its original position under the action of the connecting spring.

[0009] Furthermore, four groups of gear tooth structures are arranged at equal angles on the driving wheel, and gaps are arranged between each group of gear tooth structures arranged on the driving wheel, and the driving wheel and the driven wheel both form a rotating mechanism with the protective plate through bearings installed on the protective plate. Through the above structure, it is convenient to drive the driven wheel to rotate intermittently through the driving wheel, and the driving wheel can be supported without affecting the rotation of the driving wheel and the moving plate can be pushed.

[0010] Furthermore, the driving wheel is composed of two semicircles with different diameters, and the outer surface of the driving wheel is set to be smooth, and the driving wheel is rotatably connected to the fixed top plate through a rotating shaft. Through the above structure, the movable plate can be driven to move up and down by the rotation of the driving wheel.

[0011] Furthermore, there are two moving gears in total and they are symmetrically distributed about the center of the half gear teeth. Meanwhile, the diameter of the half gear teeth is equal to that of the moving gear. Through the above structure, the half gear teeth can be driven to move by the rotation of the moving gear.

[0012] Furthermore, a limiting component is provided on the blanking plate, and the limiting component includes a limiting rod and a limiting spring, the limiting rod is arranged through the blanking plate and the fixed top plate, and the limiting spring is fixedly connected to the limiting rod, and the limiting spring is fixedly mounted on the square plate structure at the upper end of the fixed top plate. Through the above structure, it is convenient to achieve the fitting and limiting of the end cover through the limiting rod to prevent the end cover at the rear end from moving forward.

[0013] Furthermore, a push plate is provided at the lower end of the unloading plate, and the push plate is slidably connected with the fixed top plate through a long strip groove formed on the fixed top plate. A material guide cylinder is provided at the lower end of the fixed top plate. Through the above structure, it is convenient to guide and feed the ejected end cover through the push plate.

[0014] Furthermore, a rotating assembly is provided on the fixed top plate, and the rotating assembly includes an additional plate, a driving shaft and a vortex spring. The additional plate is fixedly mounted on the fixed top plate, and the driving shaft is rotatably connected with the additional plate via a bearing mounted on the additional plate. The vortex spring is fixedly mounted in a groove provided on the additional plate, and the vortex spring is fixedly mounted on the outer surface of the driving shaft, and a sliding plate is fixedly mounted on the driving shaft. Through the above structure, it is convenient to push the unloading end cover to slide down from the sliding plate with shock absorption, thereby avoiding the situation where the end cover falls directly into the collection box from a higher height and causes collision deformation.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The automatic pressing device of the motor end cover can drive the unloading plate to move when the rotating plate is driven to rotate in a linkage manner. With the movement of the unloading plate, the motor end cover placed on the upper end of the fixed top plate can be driven to be fed, thereby achieving the purpose of automatic feeding. During feeding, a plurality of end covers can be separated by a limit rod to prevent the end cover at the rear end from sliding forward. As the motor end cover is pushed up, the pushing plate can be moved to achieve the purpose of automatic unloading of the pressed end cover. In the process of unloading, the sliding plate can be rotated to achieve the purpose of guiding and shock absorption, thereby preventing the end cover from colliding due to falling directly from a high place, thereby achieving automatic feeding and unloading of the end cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of a three-dimensional structure of a fixed top plate from a side view of the present invention; Figure 2 It is a schematic diagram of the three-dimensional cross-sectional structure of the propulsion wheel of the present invention from a side view; Figure 3 It is a schematic diagram of the side-view three-dimensional cross-sectional structure of the protective plate of the present invention; Figure 4 It is a schematic diagram of a three-dimensional cross-sectional structure of the motor of the present invention when viewed from above; Figure 5 It is a schematic diagram of the three-dimensional structure of the driven wheel of the present invention from a side view; Figure 6 It is a schematic diagram of the three-dimensional cross-sectional structure of the sliding plate of the present invention from a side view; Figure 7 This is a schematic diagram of the three-dimensional structure of the movable plate of the present invention when viewed from above; Figure 8 It is a schematic diagram of a three-dimensional cross-sectional structure of a push plate of the present invention from a side view; Fig. 9 This is a schematic diagram of the three-dimensional structure of the push plate of the present invention when viewed from above; Fig.10 This is a schematic diagram of the top view of the three-dimensional structure of the half gear of the present invention; Fig.11 It is a schematic diagram of the three-dimensional cross-sectional structure of the blanking plate of the present invention when viewed from above.

[0017] In the figure: 1. workbench; 2. fixed top plate; 3. protective plate; 4. rotating plate; 5. limit assembly; 501. fixed ring; 502. support plate; 6. push plate; 7. movable plate; 8. connecting spring; 9. motor; 10. first pulley group; 11. driving wheel; 12. driven wheel; 13. bevel gear group; 14. push wheel; 15. second pulley group; 16. third pulley group; 17. half gear; 18. movable gear; 19. fixed rack; 20. unloading plate; 21. limit assembly; 211. limit rod; 212. limit spring; 22. guide cylinder; 23. push plate; 24. rotating assembly; 241. additional plate; 242. drive shaft; 243. vortex spring; 25. sliding plate. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] See also Figure 1-Figure 11 The present invention provides a technical solution: an automatic pressing device for a motor end cover, comprising a workbench 1, wherein a fixed top plate 2 is fixedly arranged at the four corners thereof, and a protective plate 3 is arranged on the upper surface of the workbench 1, and a rotating plate 4 is arranged at the upper end of the protective plate 3, and a limiting component 5 is arranged on the rotating plate 4; a pushing plate 6 is slidably arranged in a cylindrical groove opened on the rotating plate 4, and a moving plate 7 is fixedly arranged at the lower end of the pushing plate 6, a motor 9 is arranged at the lower end of the workbench 1, and a first pulley group 10 and a second pulley group 15 are arranged at the output end of the motor 9 through a rotating shaft, a driving wheel 11 is coaxially arranged at the first pulley group 10, and a driven wheel 12 is meshedly arranged at the side of the driving wheel 11, and the driven wheel 12 is fixedly connected to the rotating plate 4 through a rotating shaft, a bevel gear group 13 is arranged on the rotating shaft at the output end of the motor 9, and a driving wheel 14 is coaxially arranged at the bevel gear group 13; the limiting component 5 comprises A fixing ring 501 and a supporting plate 502, wherein a total of four fixing rings 501 are provided, and the four fixing rings 501 are arranged at equal angles on the upper surface of the rotating plate 4, and the supporting plate 502 is fixedly installed in the fixing ring (501); a connecting spring 8 is arranged on the upper surface of the movable plate 7, and the connecting spring 8 is fixedly installed on the lower end of the rotating plate 4, and the movable plate 7 is elastically connected to the rotating plate 4 through the connecting spring 8, and the lower end of the movable plate 7 is in contact with the driving wheel 14; four groups of gear structures are arranged at equal angles on the driving wheel 11, and gaps are arranged between each group of gear structures arranged on the driving wheel 11, and the driving wheel 11 and the driven wheel 12 both form a rotating mechanism with the protective plate 3 through the bearings installed on the protective plate 3; the driving wheel 14 is composed of two semicircles with different diameters, and the outer surface of the driving wheel 14 is set to be smooth, and the driving wheel 14 is rotatably connected to the fixed top plate 2 through a rotating shaft.

[0020] When it is necessary to unload the already pressed motor end cover (a glue-spinning device and a pressing device are provided at the lower end of the fixed top plate 2, and the glue-spinning device and the pressing device are both the same as the existing structure of the pressing device, and their structure and working principle are consistent with the existing structure, and a bearing loading structure identical to the existing pressing device is provided directly behind the fixed top plate 2 to place the bearing into the end cover), the motor 9 starts to work, because the output end of the motor 9 is connected to the first pulley set 10 through the rotating shaft, and the first pulley set 10 is coaxially connected to the driving wheel 11, and because the driving wheel 11 is meshed with the driven wheel 12, at this time, as the driving wheel 11 rotates, the driven wheel 12 also starts to rotate Because the driving wheel 11 is provided with four sets of gear structures at equal angles, and there are gaps between the four sets of gear structures, and the total number of gear structures provided on the driving wheel 11 is equal to the total number of gear structures provided on the driven wheel 12 (the number of gear teeth in the attached figure is for reference only, and the specific number of gear teeth can be increased or decreased as needed), that is, the driving wheel 11 drives the driven wheel 12 to rotate intermittently, and the driving wheel 11 rotates one circle, and the driven wheel 12 also rotates one circle. Because the driven wheel 12 is connected to the rotating plate 4, the rotating plate 4 starts to rotate intermittently at this time. When the end cover that needs to be unloaded rotates to the lower end of the guide barrel 22, the driving wheel 11 is no longer meshed with the driven wheel 12. At this time The rotating plate 4 stops rotating, and because the output end of the motor 9 is meshed with the bevel gear set 13, and the bevel gear set 13 is composed of two bevel gears with different diameters (the diameter of the bevel gear connected to the output end of the motor 9 is twice the diameter of the bevel gear coaxially connected to the driving wheel 14), and the bevel gear set 13 is coaxially connected to the driving wheel 14, the driving wheel 14 starts to rotate at this time, because the diameters of the two wheels constituting the first pulley set 10 are different, that is, the diameter of the wheel connected to the motor 9 is half of the diameter of the wheel coaxially connected to the driving wheel 11. Therefore, through the above rotation and the different diameters of the bevel gears, the rotating plate 4 rotates one circle, and the driving wheel 14 needs to rotate four circles. The push wheel 14 rotates to push the movable plate 7, and the movable plate 7 is pushed, that is, the movable plate 7 starts to move upward, because the movable plate 7 is provided with a connecting spring 8, and the connecting spring 8 starts to be squeezed and deformed at this time, because the upper end of the movable plate 7 is provided with a pushing plate 6, and the pushing plate 6 also starts to move upward, so that the motor end cover at the lower end of the guide barrel 22 can be pushed, and the motor end cover that has been pressed together is no longer in contact with the support plate 502, that is, the motor end cover moves to the upper end position of the fixing ring 501, and the motor end cover is automatically ejected.

[0021] The second pulley group 15 is coaxially provided with a third pulley group 16, and the third pulley group 16 is coaxially provided with a half-wheel tooth 17, and the half-wheel tooth 17 is meshed with a mobile gear 18, and a fixed rack 19 is meshed with the side of the mobile gear 18, and a discharge plate 20 is provided at the lower end of the fixed rack 19; there are two mobile gears 18 in total, and they are symmetrically distributed about the center of the half-wheel tooth 17, and the diameter of the half-wheel tooth 17 is equal to that of the mobile gear 18; a push plate 23 is provided at the lower end of the discharge plate 20, and the push plate 23 is slidably connected with the fixed top plate 2 through a long strip groove opened on the fixed top plate 2, and a guide cylinder 22 is provided at the lower end of the fixed top plate 2.

[0022] As the motor end cover that has been pressed together is ejected, because the output end of the motor 9 is connected to the second pulley group 15, the second pulley group 15 begins to drive the third pulley group 16 coaxially connected thereto to rotate (the third pulley group 16 is composed of two rotating wheels and a belt, and the rotating diameter coaxially connected to the second pulley group 15 is twice that of the rotating wheel coaxially connected to the half gear 17), which can effectively ensure that the rotation speed of the half gear 17 is equal to that of the driving wheel 14. At this time, the half gear 17 begins to rotate, because the half gear 17 is set as a half gear structure, and the half gear 17 begins to rotate, that is, the half gear 17 begins to mesh with the moving gear 18 on one side (two moving gears 18 are symmetrically arranged about the center of the half gear 17), and the moving gear 18 on one side begins to be driven to rotate by the half gear 17. Because the moving gear 18 is meshed with the fixed rack 19, the fixed rack 19 begins to drive the blanking plate 20 to move away from the fixed top plate 2, because the lower end of the blanking plate 20 is equipped with a push plate 23, At this time, the push plate 23 also starts to move forward, that is, the push plate 23 starts to push out the motor end cover that has been pressed and pushed out, and the push plate 23 starts to fit with the lower end of the guide tube 22. At the same time, the unloading plate 20 starts to drive the motor end cover to move (the motor end cover is conveyed to the upper end of the fixed top plate 2 by the belt. At this time, as the unloading plate 20 moves, the end cover close to the arc-shaped part of the unloading plate 20 starts to be moved forward by the end cover at the rear position, and the end cover at the rear position is conveyed by the belt. The end cover at the front end position will be pushed), and the end cover pushed to the front end position will fall downward through the guide tube 22, and the end cover will fall to the upper end of the push plate 23, and then with the continuous rotation of the half gear 17, the half gear 17 will begin to mesh with another moving gear 18, and the unloading plate 20 will begin to move backward, and the push plate 23 will also begin to move backward. At this time, the motor end cover at the upper end of the push plate 23 will fall into the fixing ring 501, realizing automatic loading and unloading of the motor end cover.

[0023] A limiting component 21 is provided on the unloading plate 20, and the limiting component 21 includes a limiting rod 211 and a limiting spring 212. The limiting rod 211 is arranged on the unloading plate 20 and the fixed top plate 2, and the limiting spring 212 is fixedly connected to the limiting rod 211, and the limiting spring 212 is fixedly installed on the square plate structure at the upper end of the fixed top plate 2; a rotating component 24 is provided on the fixed top plate 2, and the rotating component 24 includes an additional plate 241, a driving shaft 242 and a vortex spring 243. The additional plate 241 is fixedly installed on the fixed top plate 2, and the driving shaft 242 is rotatably connected with the additional plate 241 through a bearing installed on the additional plate 241. The vortex spring 243 is fixedly installed in a groove opened on the additional plate 241, and the vortex spring 243 is fixedly installed on the outer surface of the driving shaft 242, and a sliding plate 25 is fixedly installed on the driving shaft 242.

[0024] As the blanking plate 20 moves backward, the blanking plate 20 begins to squeeze and push the limit rod 211, that is, the limit rod 211 begins to move in the direction away from the plate-like structure at the upper end of the fixed top plate 2 (two square plate-like structures are arranged at the upper end of the fixed top plate 2, and the limit rod 211 is penetrated by the two plate-like structures). As the limit rod 211 moves, the limit spring 212 installed on the limit rod 211 begins to be stretched and deformed. At this time, the motor end cover at the rear end begins to fit with the arc-shaped part of the blanking plate 20, which is convenient for the subsequent feeding of the motor end cover. When feeding the motor end cover, the blanking plate 20 begins to move forward. When the motor end cover fits with the arc-shaped part of the blanking plate 20 passes over the limit rod 211, it no longer squeezes the limit rod 211. That is, under the action of the limit spring 212 restoring its deformation, the limit spring 212 Start pulling the limit rod 211 to move in the direction close to the blanking plate 20. At this time, the limit rod 211 can be used to limit the motor end cover at the rear end to prevent the rear end end cover from falling through the through groove opened at the front end of the fixed top plate 2 at the moment the blanking plate 20 returns to its original position; when the motor end cover that has been pressed is discharged, as the motor end cover that has been pressed is pushed, the motor end cover that has been pressed falls onto the sliding plate 25, and the sliding plate 25 starts to rotate. Because the sliding plate 25 is connected to the driving shaft 242, and a vortex spring 243 is installed on the outside of the driving shaft 242, the vortex spring 243 starts to be squeezed and deformed. As the sliding plate 25 rotates, the motor end cover that has been processed can be introduced into the collection box to avoid collision due to excessive falling height.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic pressing device for a motor end cover, comprising a workbench (1), wherein fixed top plates (2) are fixedly arranged at four corners of the workbench (1), a protective plate (3) is arranged on the upper surface of the workbench (1), and a rotating plate (4) is arranged at the upper end of the protective plate (3), and a limit position assembly (5) is arranged on the rotating plate (4); characterized in that: Also includes: A push plate (6) is slidably arranged in a cylindrical groove formed on the rotating plate (4), and a movable plate (7) is fixedly arranged at the lower end of the push plate (6). A motor (9) is arranged at the lower end of the workbench (1), and a first belt pulley group (10) and a second belt pulley group (15) are arranged at the output end of the motor (9) via a rotating shaft. A driving wheel (11) is coaxially arranged on the first belt pulley group (10), and a driven wheel (12) is meshed with a side of the driving wheel (11), and the driven wheel (12) is connected to the rotating plate via a rotating shaft. (4) fixedly connected, a bevel gear set (13) is arranged on the output end shaft of the motor (9), and a driving wheel (14) is coaxially arranged on the bevel gear set (13), the second pulley set (15) is coaxially arranged with a third pulley set (16), and the third pulley set (16) is coaxially arranged with a half gear (17), and the half gear (17) is meshed with a moving gear (18), the side of the moving gear (18) is meshed with a fixed rack (19), and a blanking plate (20) is arranged at the lower end of the fixed rack (19).

2. The automatic pressing device for a motor end cover according to claim 1 is characterized in that: The limiting assembly (5) comprises a fixing ring (501) and a support plate (502), and a total of four fixing rings (501) are provided. The four fixing rings (501) are arranged at equal angles on the upper surface of the rotating plate (4), and the support plate (502) is fixedly mounted inside the fixing ring (501).

3. The automatic pressing device for a motor end cover according to claim 1 is characterized in that: A connecting spring (8) is provided on the upper surface of the movable plate (7), and the connecting spring (8) is fixedly mounted on the lower end of the rotating plate (4), and the lower end of the movable plate (7) is in contact with the driving wheel (14).

4. The automatic pressing device for a motor end cover according to claim 1, characterized in that: The driving wheel (11) is provided with four groups of gear tooth structures at equal angles, and gaps are provided between each group of gear tooth structures provided on the driving wheel (11). The driving wheel (11) and the driven wheel (12) both form a rotating mechanism with the protective plate (3) through bearings installed on the protective plate (3).

5. The automatic pressing device for a motor end cover according to claim 1 is characterized in that: The driving wheel (14) is composed of two semicircles with different diameters, and the outer surface of the driving wheel (14) is smooth. The driving wheel (14) is rotatably connected to the fixed top plate (2) via a rotating shaft.

6. The automatic pressing device for a motor end cover according to claim 1, characterized in that: There are two movable gears (18) in total, which are symmetrically distributed about the center of the half gear teeth (17), and the half gear teeth (17) and the movable gear (18) have the same diameter.

7. The automatic pressing device for a motor end cover according to claim 1, characterized in that: The blanking plate (20) is provided with a limiting assembly (21), and the limiting assembly (21) comprises a limiting rod (211) and a limiting spring (212), the limiting rod (211) is provided through the blanking plate (20) and the fixed top plate (2), and the limiting spring (212) is fixedly connected to the limiting rod (211), and the limiting spring (212) is fixedly mounted on the square plate structure at the upper end of the fixed top plate (2).

8. The automatic pressing device for a motor end cover according to claim 1, characterized in that: A pushing plate (23) is provided at the lower end of the unloading plate (20), and the pushing plate (23) is slidably connected to the fixed top plate (2) via a through-long strip groove provided on the fixed top plate (2), and a material guide cylinder (22) is provided at the lower end of the fixed top plate (2).

9. The automatic pressing device for a motor end cover according to claim 1, characterized in that: A rotating assembly (24) is provided on the fixed top plate (2), and the rotating assembly (24) comprises an additional plate (241), a driving shaft (242) and a vortex spring (243); the additional plate (241) is fixedly mounted on the fixed top plate (2); the driving shaft (242) is rotatably connected to the additional plate (241) via a bearing mounted on the additional plate (241); the vortex spring (243) is fixedly mounted in a groove provided on the additional plate (241); and the vortex spring (243) is fixedly mounted on the outer surface of the driving shaft (242); and a sliding plate (25) is fixedly mounted on the driving shaft (242).

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