Cover plate pressing device for alternating current motor production

Abstract

The invention relates to the technical field of alternating current motor cover plate processing, in particular to a cover plate pressing device for alternating current motor production. The cover plate pressing device for alternating current motor production comprises a base, a back plate, a hydraulic cylinder, a movable plate, a pressing block, a sliding rail, a workbench and the like. A back plate is arranged on the top of the base, a hydraulic cylinder is arranged on the front side of the back plate, a movable plate is connected to a telescopic rod of the hydraulic cylinder, a pressing block is arranged in the middle of the bottom of the movable plate, L-shaped linkage plates are arranged on the left side and the right side of the bottom of the movable plate, a sliding rail is arranged on the top of the base, a workbench is slidably connected to the sliding rail, and L-shaped fixing plates are arranged on the left side and the right side of the workbench. By means of the design of the L-shaped plate, the connecting rod, the L-shaped fixing plate and the L-shaped linkage plate, bidirectional conversion between linear motion and rotary motion is achieved, reciprocating motion of the workbench is completed, movement and press-fit integrated operation of workpieces is achieved, operators are far away from a press-fit area, and the mistaken touch risk is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of AC motor cover plate processing, and in particular to a cover plate pressing device for AC motor production. Background Art

[0002] AC motors are machines used to convert mechanical energy into AC electrical energy. The cover pressing device for AC motor production is a specialized device used to press the motor cover onto the motor body during the motor manufacturing process. During the motor manufacturing process, after the core components, such as the stator and rotor, are assembled, a cover is required to seal one or both ends of the motor to protect the internal components and ensure the integrity and sealing of the entire motor structure.

[0003] Existing cover pressing devices for AC motor production generally press the cover manually by placing it on the bottom of a pressing block. However, when processing smaller workpieces, manual placement is difficult to align and increases the risk of finger injuries due to improper operation. Summary of the Invention

[0004] In order to overcome the shortcomings of existing cover plate pressing devices for AC motor production, such as difficulty in manual placement and alignment and high operational safety risks when processing small workpieces, the present invention can provide a cover plate pressing device for AC motor production.

[0005] The technical solution is: a cover plate pressing device for AC motor production, including a base, a back plate, a hydraulic cylinder, a movable plate, a pressing block, a slide rail, a workbench, an axle seat, an L-shaped plate, a connecting rod, an L-shaped fixed plate and an L-shaped linkage plate. A back plate is provided on the top of the base, a hydraulic cylinder is provided on the front side of the back plate, the movable plate is connected to the telescopic rod of the hydraulic cylinder, a pressing block is provided in the middle of the bottom of the movable plate, a slide rail is provided on the top of the base, and a workbench is slidably connected to the slide rail, L-shaped linkage plates are provided on the left and right sides of the bottom of the movable plate, a first groove is provided on the L-shaped linkage plate, an L-shaped fixing plate is provided on the left and right sides of the workbench, a second groove is provided on the L-shaped fixing plate, an axle seat is provided on the top of the base, the L-shaped plate is hingedly connected to the axle seat, and connecting rods are provided on the front and rear ends of the L-shaped plate, the end of the connecting rod at the front away from the L-shaped plate is located in the second groove, and the end of the connecting rod at the rear away from the L-shaped plate is located in the first groove, first fixing mechanisms are provided on the left and right sides of the top of the base, and a second fixing mechanism is provided in the workbench.

[0006] As an improvement to the above scheme, the first fixing mechanism includes an oblique block, a first adjusting plate, a first fixed block, a first connecting member, a guide rail, a compression spring and a trigger rod. A groove is opened on the rear side of the top of the base, and a guide rail is connected between the left and right side walls of the groove. The first connecting member is slidably connected to the guide rail, and the left side wall of the groove and the left side of the first connecting member are connected to the compression spring. The compression spring is sleeved on the outside of the guide rail. An oblique block is provided on the right side of the top of the first connecting member, a first adjusting mechanism is provided above the first connecting member, a first adjusting plate is provided on the left side of the first adjusting mechanism, and a first fixed block is provided on the left side of the first adjusting plate. There are two first fixing mechanisms and both are located below the movable plate. Trigger rods are provided on both sides of the workbench.

[0007] As an improvement to the above scheme, the second fixing mechanism includes a driving rack, a driven gear, a connecting rod, a bevel gear group, a bidirectional screw, a second guide rod, a second connecting piece, a second adjusting plate, a second fixed block and a mounting block. A mounting hole is opened in the workbench, a mounting block is provided at the bottom of the upper side wall of the mounting hole, a second guide rod is provided at the bottom of the mounting block, a second connecting piece is provided on the front and rear sides of the second guide rod, a bidirectional screw is connected between the two second connecting pieces, a bevel gear group is provided at the rear end of the bidirectional screw, a connecting rod is provided at the right end of the bevel gear group, a driven gear is provided at the right end of the connecting rod, a driving rack is provided on the front side of the back plate, the driving rack and the driven gear are meshed, a second adjusting mechanism is provided on the two second connecting pieces, a second adjusting plate is provided on the side of the second adjusting mechanism away from the second connecting piece, and a second fixing block is provided on the side of the second adjusting plate away from the second adjusting mechanism.

[0008] As an improvement to the above-mentioned solution, the first adjustment mechanism and the second adjustment mechanism both include a threaded rod, a knob, a first guide rod and a sleeve. The first connecting member and the second connecting member are both threadedly connected to the inside of the upper part with a threaded rod. The first connecting member and the second connecting member are both provided with a sleeve on the side close to the workbench. The first guide rod is slidably connected in the sleeve. The two threaded rods are both provided with a knob on the end away from the first adjustment plate and the second adjustment plate.

[0009] As an improvement to the above scheme, it also includes a controller and a photoelectric sensor. A through hole is opened on the top of the workbench, and a photoelectric sensor is installed in the workbench. The photoelectric sensor is located directly below the through hole. A controller is provided on the front side of the workbench. The photoelectric sensor and the hydraulic cylinder are both connected to the controller by electrical signals.

[0010] As an improvement to the above solution, the first fixing block and the second fixing block are detachably connected to the first adjustment plate and the second adjustment plate respectively.

[0011] As an improvement to the above solution, a third guide rod is further included. The third guide rod is provided on the top of the base and passes through the movable plate.

[0012] As an improvement to the above solution, the first fixing block and the second fixing block are both made of rubber material on one side close to the workbench.

[0013] 1. The design of the L-shaped plate, connecting rod, L-shaped fixed plate and L-shaped linkage plate of the present invention realizes the bidirectional conversion between linear motion and rotational motion, completes the reciprocating movement of the workbench, and realizes the integrated operation of workpiece movement and pressing. The operator stays away from the pressing area to avoid the risk of accidental touch.

[0014] 2. The design of the first fixing mechanism and the second fixing mechanism of the present invention realizes automatic centering and clamping of the workpiece before pressing, solving the problems of large positioning error and uneven clamping force in traditional manual operation.

[0015] 3. The design of the photoelectric sensor and controller of the present invention enables the controller to automatically start the hydraulic cylinder according to the photoelectric sensor signal without manual intervention, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0017] Figure 2 It is a structural schematic diagram of the hydraulic cylinder, movable plate and pressing block of the present invention.

[0018] Figure 3 It is a structural schematic diagram of the L-shaped plate, L-shaped fixed plate and L-shaped linkage plate of the present invention.

[0019] Figure 4 This is a schematic structural diagram of the workbench after the movable plate of the present invention moves downward.

[0020] Figure 5 This is a schematic structural diagram of the L-shaped plate after the movable plate of the present invention moves downward.

[0021] Figure 6 It is a schematic structural diagram of the inclined block, threaded rod and knob of the present invention.

[0022] Figure 7 This is a schematic structural diagram of the driving rack, driven gear and bevel gear set of the present invention.

[0023] Figure 8 It is a structural diagram of the photoelectric sensor and controller of the present invention.

[0024] The numbers in the figure are: 1. base, 101. back plate, 2. hydraulic cylinder, 3. moving plate, 4. pressing block, 5. slide rail, 6. workbench, 7. shaft seat, 8. L-shaped plate, 81. connecting rod, 9. L-shaped fixed plate, 10. L-shaped linkage plate, 11. oblique block, 12. threaded rod, 13. knob, 14. first guide rod, 15. first adjusting plate, 16. first fixed block, 17. first connecting piece, 18. guide rail, 19. compression spring, 20. driving rack, 21. driven gear, 22. connecting rod, 23. bevel gear set, 24. bidirectional screw, 25. second guide rod, 26. second connecting piece, 27. second adjusting plate, 28. second fixed block, 29. controller, 30. photoelectric sensor, 31. third guide rod, 32. trigger rod, 33. sleeve, 34. mounting block. DETAILED DESCRIPTION

[0025] 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 described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] A cover pressing device for AC motor production, such as Figures 1-8 As shown, it includes a base 1, a back plate 101, a hydraulic cylinder 2, a movable plate 3, a pressing block 4, a slide rail 5, a workbench 6, an axle seat 7, an L-shaped plate 8, a connecting rod 81, an L-shaped fixed plate 9 and an L-shaped linkage plate 10. The top of the base 1 is provided with a back plate 101, the front side of the back plate 101 is provided with a hydraulic cylinder 2, the telescopic rod of the hydraulic cylinder 2 is connected to the movable plate 3, the middle of the bottom of the movable plate 3 is provided with a pressing block 4, the top of the base 1 is provided with a slide rail 5, the slide rail 5 is slidably connected to the workbench 6, and the left and right sides of the bottom of the movable plate 3 are fixedly connected to the L-shaped linkage plate 10. A first groove is provided on the L-shaped linkage plate 10, and L-shaped fixing plates 9 are provided on the left and right sides of the workbench 6. A second groove is provided on the L-shaped fixing plate 9. An axle seat 7 is provided on the top of the base 1, and an L-shaped plate 8 is hingedly connected to the axle seat 7. Connecting rods 81 are provided at the front and rear ends of the L-shaped plate. The end of the connecting rod 81 at the front away from the L-shaped plate 8 is located in the second groove, and the end of the connecting rod 81 at the rear away from the L-shaped plate 8 is located in the first groove. A first fixing mechanism is provided on the left and right sides of the top of the base 1, and a second fixing mechanism is provided in the workbench 6.

[0027] like Figure 6As shown, the first fixing mechanism includes an inclined block 11, a first adjusting plate 15, a first fixing block 16, a first connecting member 17, a guide rail 18, a compression spring 19 and a trigger rod 32. Rectangular grooves are provided on the front and back sides of the top of the base 1. A guide rail 18 is connected between the left and right side walls of the rectangular groove. The first connecting member 17 is slidably connected to the guide rail 18. The left side wall of the rectangular groove and the left side of the first connecting member 17 are connected to the compression spring 19. The compression spring 19 is sleeved on the outside of the guide rail 18. An inclined block 11 is provided on the right side of the top of the first connecting member 17. A first adjusting mechanism is provided above the first connecting member 17. A first adjusting plate 15 is provided on the left side of the first adjusting mechanism. A first fixing block 16 is provided on the left side of the first adjusting plate 15. When the workbench 6 moves toward the back plate 101, the trigger rod 32 on the workbench 6 The inclined block 11 will be squeezed, and the inclined surface on the inclined block 11 will be squeezed to displace the inclined block 11 toward the workbench 6. At the same time, the inclined block 11 will push the first connecting piece 17 to move toward the workbench 6. The two first connecting pieces 17 will drive the two first fixed blocks 16 to approach each other to fix the workpiece to be pressed and center the workpiece. There are two first fixing mechanisms and both are located below the movable plate 3. Trigger rods 32 are provided on both sides of the workbench 6. When the hydraulic cylinder 2 drives the telescopic rod to move downward to the maximum distance, the position of the workbench 6 is just below the pressing block 4. The trigger rod 32 is located on the side of the inclined block 11 away from the workbench 6 and does not separate from the inclined block 11. When the hydraulic cylinder 2 drives the telescopic rod to move upward, the trigger rod 32 will move back along the side of the inclined block 11 away from the workbench 6.

[0028] like Figure 7As shown, the second fixing mechanism includes a driving rack 20, a driven gear 21, a connecting rod 22, a bevel gear set 23, a bidirectional screw 24, a second guide rod 25, a second connecting piece 26, a second adjusting plate 27, a second fixing block 28 and a mounting block 34. A mounting hole is opened in the workbench 6, and a mounting block 34 is fixedly connected to the bottom of the upper side wall of the mounting hole. The bottom of the mounting block 34 is sleeved with a second guide rod 25, and the second guide rod 25 is slidably connected to the second connecting piece 26 on both sides. A threaded hole is formed between the two second connecting pieces 26. It is connected with a bidirectional screw 24, and a bevel gear set 23 is provided at the rear end of the bidirectional screw 24. A connecting rod 22 is provided at the right end of the bevel gear set 23. The right end of the connecting rod 22 is fixedly connected to a driven gear 21. A driving rack 20 is provided on the front side of the back plate 101. The driving rack 20 and the driven gear 21 are meshed. When the workbench 6 drives the driven gear 21 to move in the direction of the driving rack 20, the driving rack 20 and the driven gear 21 are meshed to drive the driven gear 21 to rotate. The rotation of the driven gear 21 is transmitted to the The bevel gear set 23 drives the bidirectional screw 24 to rotate, and the threads at both ends of the bidirectional screw 24 push the two second connecting members 26 closer to each other, and the second connecting member 26 drives the two second fixing blocks 28 closer to each other to center the workpiece and clamp the workpiece. A second adjusting mechanism is provided on each of the two second connecting members 26. A second adjusting plate 27 is fixedly connected to the side of the second adjusting mechanism away from the second connecting member 26, and a second fixing block 28 is provided on the side of the second adjusting plate 27 away from the second adjusting mechanism. The first fixing block 16 and the second fixing block 28 are detachably connected to the first adjusting plate 15 and the second adjusting plate 27 respectively. The first fixing block 16 and the second fixing block 28 may be damaged due to long-term pressure during use. The detachable connection allows maintenance personnel to replace the first fixing block 16 and the second fixing block 28 separately. The first fixing block 16 and the second fixing block 28 close to the workbench 6 are both made of rubber material. The rubber material can increase friction to ensure that the processing process is more stable and protect the workpiece surface from damage.

[0029] like Figure 6 He Ru Figure 7 As shown, the first adjustment mechanism and the second adjustment mechanism both include a threaded rod 12, a knob 13, a first guide rod 14 and a sleeve 33. The threaded rod 12 is threadedly connected to the interior of the first connecting member 17 and the second connecting member 26. The first connecting member 17 and the second connecting member 26 are both provided with a sleeve 33 on the side close to the workbench 6. The first guide rod 14 is slidably connected to the sleeve 33. The ends of the two threaded rods 12 away from the first adjustment plate 15 and the second adjustment plate 27 are both provided with a knob 13. When it is necessary to adapt to workpieces of different sizes for processing, the first adjustment plate 15 or the second adjustment plate 27 can be driven to move toward a position away from or close to the center of the workbench 6 by rotating the knob 13 to adjust the clamping position and achieve adaptation and fixation of workpieces of different specifications.

[0030] like Figure 8 As shown, a controller 29 and a photoelectric sensor 30 are also included. A through hole is opened on the top of the workbench 6, and a photoelectric sensor 30 is provided in the workbench 6. The photoelectric sensor 30 is located directly below the through hole. A controller 29 is provided on the front side of the workbench 6. The photoelectric sensor 30 and the hydraulic cylinder 2 are both electrically connected to the controller 29. When the workpiece is placed at the center of the workbench 6 and blocks the through hole, the photoelectric sensor 30 detects a weakening of the light signal and starts the hydraulic cylinder 2 through the controller 29 to perform the pressing operation. If the manual placement position is biased, that is, the workpiece is not placed at the center of the workbench 6, the photoelectric sensor 30 is not completely blocked or the blocking signal is not detected. The controller 29 will determine that the placement is abnormal, and will not start the pressing action of the hydraulic cylinder 2, thereby improving the accuracy of the workpiece pressing.

[0031] like Figure 1 As shown, a third guide rod 31 is also included. The third guide rod 31 is provided on the top of the base 1. The third guide rod 31 passes through the movable plate 3. The third guide rod 31 is used to guide the movable plate 3 to move vertically along the base 1 to ensure its motion trajectory is stable, prevent deviation and improve the pressing accuracy.

[0032] When in use, the workpiece is placed on the top of the workbench 6, the light is blocked, and the photoelectric sensor 30 detects that the light signal is weakened. The hydraulic cylinder 2 is started through the controller 29, and the hydraulic cylinder 2 drives the movable plate 3 to move downward a preset distance. The movable plate 3 drives the L-shaped linkage plate 10 to move downward, thereby driving the L-shaped plate 8 to rotate around the shaft seat 7. When the L-shaped plate 8 rotates, the connecting rod 81 on the L-shaped plate 8 pushes the L-shaped fixed plate 9 through the rectangular hole to move to drive the workbench 6 to move in the direction close to the back plate 101; when the workbench 6 moves toward the back plate 101, the trigger rod 32 on the workbench 6 will squeeze the inclined block 11, and by squeezing the inclined surface on the inclined block 11, the inclined block 11 is displaced toward the workbench 6. At the same time, the inclined block 11 will push the first connecting member 17 to move toward the workbench 6. The two first connecting members 17 will drive the two first fixed blocks 16 to approach each other to fix the workpiece to be pressed and center the workpiece: at the same time, the workbench 6 will drive the driven gear 21 to drive the rack The two ends of the two-way screw 24 respectively push the two second connecting members 26 to approach each other, and the second connecting member 26 drives the two second fixed blocks 28 to approach each other so that the workpiece is centered and clamped; the workbench 6 moves to the bottom of the movable plate 3 and is squeezed by the pressing block 4 to press the workpiece; after the hydraulic cylinder 2 moves down a preset distance, the controller 29 controls the hydraulic cylinder 2 to move up to the initial position, and the hydraulic cylinder 2 drives the movable plate 3 and the L-shaped linkage plate 10 to move upward. When the L-shaped linkage plate 10 moves upward, the L-shaped plate 8 will rotate in the opposite direction around the shaft seat 7. When the L-shaped plate 8 rotates, the connecting rod 81 on the L-shaped plate 8 pushes the L-shaped fixed plate 9 through the rectangular hole to move away from the back plate 101 to return to the initial position.

[0033] Although the present invention has been described in detail with reference to the above embodiments, it will be apparent to those skilled in the art from this disclosure that various changes or modifications may be made to the present invention without departing from the principles and spirit of the invention as defined in the claims. Therefore, the detailed description of the disclosed embodiments is intended to be illustrative only and not to limit the present invention, which is to be defined by the claims.

Claims

1. A cover pressing device for AC motor production, comprising a base (1), a back plate (101), a hydraulic cylinder (2), a movable plate (3), a pressing block (4), a slide rail (5) and a workbench (6), wherein the base (1) is provided with a back plate (101) on the top, a hydraulic cylinder (2) is provided on the front side of the back plate (101), a movable plate (3) is connected to the telescopic rod of the hydraulic cylinder (2), a pressing block (4) is provided in the middle of the bottom of the movable plate (3), a slide rail (5) is provided on the top of the base (1), and a workbench (6) is slidably connected to the slide rail (5), wherein the invention is characterized in that: The invention also includes an axle seat (7), an L-shaped plate (8), a connecting rod (81), an L-shaped fixed plate (9) and an L-shaped linkage plate (10), wherein the bottom of the movable plate (3) is provided with an L-shaped linkage plate (10) on both the left and right sides, and a first groove is provided on the L-shaped linkage plate (10), and the left and right sides of the workbench (6) are provided with an L-shaped fixed plate (9), and a second groove is provided on the L-shaped fixed plate (9), and the top of the base (1) is provided with an axle seat (7), and the axle seat (7) is hingedly connected to the L-shaped plate (8), and the front and rear ends of the L-shaped plate (8) are provided with connecting rods (81), and the end of the connecting rod (81) at the front away from the L-shaped plate (8) is located in the second groove, and the end of the connecting rod (81) at the rear away from the L-shaped plate (8) is located in the first groove, and the left and right sides of the top of the base (1) are provided with a first fixing mechanism, and the workbench (6) is provided with a second fixing mechanism.

2. A cover plate pressing device for AC motor production according to claim 1, characterized in that: The first fixing mechanism includes an inclined block (11), a first adjustment plate (15), a first fixed block (16), a first connecting member (17), a guide rail (18), a compression spring (19) and a trigger rod (32). A groove is provided on the rear side of the top of the base (1). A guide rail (18) is connected between the left and right side walls of the groove. The first connecting member (17) is slidably connected to the guide rail (18). The left side wall of the groove and the left side of the first connecting member (17) are connected with a compression spring (19). The compression spring (19) is sleeved on the outside of the guide rail (18). An inclined block (11) is provided on the right side of the top of the first connecting member (17). A first adjusting mechanism is provided above the first connecting member (17). A first adjusting plate (15) is provided on the left side of the first adjusting mechanism. A first fixed block (16) is provided on the left side of the first adjusting plate (15). There are two first fixing mechanisms and both are located below the movable plate (3). Trigger rods (32) are provided on the left and right sides of the workbench (6).

3. A cover plate pressing device for AC motor production according to claim 2, characterized in that: The second fixing mechanism comprises a driving rack (20), a driven gear (21), a connecting rod (22), a bevel gear set (23), a bidirectional screw (24), a second guide rod (25), a second connecting piece (26), a second adjusting plate (27), a second fixing block (28) and a mounting block (34). A mounting hole is opened in the workbench (6), a mounting block (34) is provided at the bottom of the upper side wall of the mounting hole, a second guide rod (25) is provided at the bottom of the mounting block (34), a second connecting piece (26) is provided on both the front and rear sides of the second guide rod (25), and a second connecting piece (26) is connected between the two second connecting pieces (26). A bidirectional screw (24) is provided at the rear end of the bidirectional screw (24), a bevel gear set (23) is provided at the right end of the bevel gear set (23), a connecting rod (22) is provided at the right end of the connecting rod (22), a driven gear (21) is provided at the right end of the connecting rod (22), a driving rack (20) is provided on the front side of the back plate (101), the driving rack (20) and the driven gear (21) are meshed, a second adjustment mechanism is provided on each of the two second connecting members (26), a second adjustment plate (27) is provided on the side of the second adjustment mechanism away from the second connecting member (26), and a second fixing block (28) is provided on the side of the second adjustment plate (27) away from the second adjustment mechanism.

4. A cover plate pressing device for AC motor production according to claim 3, characterized in that: The first adjustment mechanism and the second adjustment mechanism both comprise a threaded rod (12), a knob (13), a first guide rod (14) and a sleeve (33); the threaded rod (12) is threadedly connected to the interior of the first connecting member (17) and the second connecting member (26); the first connecting member (17) and the second connecting member (26) are both provided with a sleeve (33) on one side close to the workbench (6); the first guide rod (14) is slidably connected to the sleeve (33); and the ends of the two threaded rods (12) away from the first adjustment plate (15) and the second adjustment plate (27) are both provided with a knob (13).

5. The cover plate pressing device for AC motor production according to claim 4, characterized in that: The workbench (6) further comprises a controller (29) and a photoelectric sensor (30). A through hole is provided on the top of the workbench (6). The photoelectric sensor (30) is provided inside the workbench (6). The photoelectric sensor (30) is located directly below the through hole. The workbench (6) is provided with a controller (29) on the front side. The photoelectric sensor (30) and the hydraulic cylinder (2) are both electrically connected to the controller (29).

6. A cover plate pressing device for AC motor production according to claim 5, characterized in that: The first fixing block (16) and the second fixing block (28) are detachably connected to the first adjustment plate (15) and the second adjustment plate (27), respectively.

7. A cover pressing device for AC motor production according to claim 6, characterized in that: It also includes a third guide rod (31). The top of the base (1) is provided with the third guide rod (31), and the third guide rod (31) passes through the movable plate (3).

8. A cover plate pressing device for AC motor production according to claim 7, characterized in that: The first fixing block (16) and the second fixing block (28) are both made of rubber material on one side close to the workbench (6).

Images