An automatic stator lamination device

Abstract

This invention relates to the field of stator chip processing technology, specifically to an automatic stator chip stacking device, comprising a frame, a positioning stacking module, a pressing module, an ejection module, and a mechanical transmission module. The positioning stacking module includes a mandrel and a straightening sleeve. The stator chips are inserted into the mandrel through their central holes to achieve stacking. Both the pressing module and the ejection module are connected to the mechanical transmission module. The pressing module descends as the mechanical transmission module rotates, applying a circumferential flattening action to the warped stator chips. Simultaneously, after pressing, the ejection module pushes the stator chips coaxially along the mandrel to complete the stacking feed. This invention synchronously drives the pressing and ejection actions through a shared mechanical transmission module, and uses a cam-rocker mechanism to coordinate the timing of flattening and pushing. The structure is simple and effectively avoids stacking misalignment or jamming.

Description

Technical Field

[0001] This invention relates to the field of stator chip processing technology, specifically to an automatic stator chip assembly device. Background Technology

[0002] In the manufacturing process of motor stator core, stator core chips need to be stacked one by one to form a high-precision core assembly.

[0003] A search of Chinese Patent Publication No. CN201504157U reveals an automatic stator lamination device, comprising a frame with a lamination fixture mounted on it. The lamination fixture includes a rotatable chassis and several rods on the periphery of the chassis. A storage rack for holding the laminations is located on the side of the fixture. A swing-type lamination linkage mechanism connects the fixture and the storage rack. The front end of the swing-type lever of the swing-type linkage mechanism has a suction component for holding the laminations, thus picking them up from the storage rack and, after swinging at a corresponding angle, fitting the laminations onto the rods. This device not only has high efficiency and saves labor but also has a compact structure and good performance.

[0004] Stator iron chips are thin and weak, making them prone to warping and deformation. In traditional automatic lamination processes, it is difficult to achieve high-precision stacking. Existing lamination devices generally lack the function of actively correcting warped chips and synchronously flattening them in coordination with the feeding action, resulting in frequent problems such as misalignment and uneven gaps, which seriously restricts the stacking accuracy and production efficiency. Summary of the Invention

[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention solves the problem that the existing sheet-making devices generally lack the function of actively correcting warped sheets and synchronously flattening them in coordination with the feeding action, which leads to misalignment of the sheets and uneven gaps.

[0006] To achieve the above objectives, the present invention provides the following technical solution: This invention provides an automatic stator chip assembly device, comprising a frame, a positioning assembly module, a pressing module, an ejection module, and a mechanical transmission module. The positioning assembly module includes a mandrel and a straightening sleeve. The stator chips are fitted into the mandrel through their central holes to achieve stacking. The pressing module and the ejection module are both connected to the mechanical transmission module. The pressing module descends as the mechanical transmission module rotates, applying a circumferential flattening action to the warped stator chips. Simultaneously, after pressing, the ejection module pushes the stator chips coaxially along the mandrel to complete the stacking feed.

[0007] Furthermore, the mechanical transmission module includes an upper swing arm, the middle of which is hinged to a bracket fixedly mounted on the upper end of the frame. One end of the upper swing arm is rotatably equipped with a roller, and a pressing cam is rotatably mounted on the lower side of the bracket. The pressing cam is in contact with the roller. The other end of the upper swing arm is movably connected to the tablet pressing module. When the protruding part of the pressing cam rotates to be in contact with the roller, it pushes one end of the upper swing arm upward, causing the other end to drive the tablet pressing module to descend and press material. A retraction cam is rotatably mounted on the inner side of the frame. The middle of the lower swing arm is hinged to the inside of the frame, and one end of the lower swing arm is rotatably equipped with a roller that is in contact with the retraction cam. The other end of the lower swing arm is movably connected to the retraction module. The rotating shaft between the retraction cam and the pressing cam is connected by a synchronous belt transmission component and driven by a motor.

[0008] Furthermore, the tablet compression module includes a compression ring, a push rod is fixedly mounted on the upper side of the compression ring, the upper end of the push rod is hinged to the upper swing rod, the compression ring is provided with a circumferential groove, a movable plate is slidably mounted in each groove, a number of flexible pressure rollers are mounted on the lower side of the movable plate, and a lead screw is rotatably mounted in each groove. The lead screw is driven by a motor and threadedly connected to the upper side of the movable plate.

[0009] Furthermore, the unloading module includes a top ring located on the upper surface of the frame. A push rod two is fixedly connected to the lower side of the top ring. The lower end of the push rod two passes through a through hole in the frame and is hinged to the lower swing rod.

[0010] Furthermore, the push rod 1 passes through and slides within the guide sleeve 2 fixed on the bracket. A return spring 1 is fitted on the push rod 1, with one end of the return spring 1 fitted on the boss of the push rod 1 and the other end fixedly connected to the outer wall of the guide sleeve 2. The push rod 2 passes through and slides within the guide sleeve 1 fixed inside the frame. A return spring 2 is fitted on the push rod 2, with one end of the return spring 2 fitted on the boss of the push rod 2 and the other end fixedly connected to the outer wall of the guide sleeve 1.

[0011] Furthermore, the mandrel has a mounting groove circumferentially provided, and a number of elastic elements are provided in the mounting groove. The elastic elements are connected to the elastic expansion plate that is slidably connected in the mounting groove. The upper end of the mandrel has a positioning hole, and the mandrel is located above the tablet pressing module.

[0012] Furthermore, a fixed base is fixedly provided at the upper end of the frame, and a movable frame is slidably provided in the movable groove opened in the fixed base. The movable frame is moved up and down by a cylinder. A cylinder is installed at the upper end of the movable frame, and the piston end of the cylinder is fixedly connected to a locking rod. The locking rod is inserted into the positioning hole at the upper end of the spindle.

[0013] Furthermore, the orthopedic sleeve is provided with an elastic paddle in the inner circumference. The free end of the elastic paddle has an arc-shaped structure. The orthopedic sleeve is fixed on the upper surface of the frame and a feeding gap is maintained between it and the pressing module to allow the stator iron chip to enter.

[0014] Furthermore, cylinder three is installed on the frame on both sides of the orthopedic sleeve. The piston end of cylinder three is connected to a top frame. Cylinder four is installed on one side of the top frame. The piston end of cylinder four is connected to a stacking plate. The bottom of the stacking plate is slidably connected to a guide groove opened in the top frame. The two stacking plates are symmetrically located on both sides of the mandrel.

[0015] Furthermore, a robotic arm is installed on the loading side of the frame. The robotic arm is used to clamp the stator iron chip and feed it into the orthopedic sleeve to complete the automatic loading.

[0016] Beneficial effects 1. This invention uses the same mechanical transmission module to synchronously drive the pressing module and the unloading module. By using the pressing cam and the unloading cam in conjunction with the rocker arm mechanism, the timing of the pressing and pushing operations is coordinated. The structure is simple and reliable, effectively avoiding misalignment or jamming problems caused by asynchronous actions during the stacking process, and improving the stability and cycle efficiency of the stacking process.

[0017] 2. The pressing module adopts a structure combining circumferentially arranged flexible pressing rollers and an adjustable moving plate. The moving plate is driven by a motor-driven screw to adjust the position of the pressing rollers radially. This allows for rapid response and precise flattening of the warped areas of the stator core chips. This design achieves efficient straightening while effectively avoiding the spatial path of the top ring pushing the stacked chips upwards during the unloading process. It also prevents the pressing assembly from obstructing or mechanically interfering with the stator core, ensuring the flattening effect and preventing workpiece damage caused by rigid contact, thereby improving the stacking qualification rate and product consistency.

[0018] 3. The mandrel integrates an elastic expansion plate and a top positioning lock. During stacking, the elastic expansion plate automatically tightens the inner hole of the iron chip to achieve precise centering. After the locking rod is inserted into the positioning hole, it locks the axial and circumferential degrees of freedom of the mandrel to prevent rotation or movement. Together with the arc-shaped elastic lever in the orthopedic sleeve and the centering clamping of the symmetrical stacking plates on both sides, a multi-dimensional positioning system is formed to ensure that each iron chip is accurately aligned, which greatly improves the final stacking accuracy and magnetic circuit performance of the iron core. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a three-dimensional schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the frame of the present invention; Figure 3This is a planar schematic diagram of the mechanical transmission module of the present invention; Figure 4 This is a three-dimensional schematic diagram of the mechanical transmission module of the present invention; Figure 5 This is a top view of the pressing module of the present invention; Figure 6 This is a schematic diagram of the fixing base structure of the present invention; Figure 7 This is a schematic diagram of the mandrel structure of the present invention; Figure 8 This is a partial schematic diagram of the frame structure of the present invention; Figure 9 This is a schematic diagram of the orthopedic sleeve structure of the present invention.

[0021] Figure label: 1. Frame; 11. Support; 12. Guide sleeve one; 13. Guide sleeve two; 14. Through hole; 15. Robotic arm; 2. Pressure ring; 21. Slide groove; 22. Lead screw; 23. Moving plate; 24. Flexible pressure roller; 25. Push rod one; 26. Return spring one; 3. Upper swing arm; 31. Roller 1; 32. Pressure cam; 33. Unloading cam; 34. Lower swing arm; 35. Roller 2; 36. Synchronous belt drive component; 4. Top ring; 41. Push rod two; 42. Return spring two; 5. Mandrel; 51. Mounting groove; 52. Elastic expansion plate; 53. Elastic element; 54. Positioning hole; 6. Fixed base; 61. Movable frame; 62. Cylinder 1; 63. Cylinder 2; 64. Locking rod; 7. Orthopedic sleeve; 71. Elastic paddle; 8. Cylinder 3; 81. Top frame; 82. Cylinder 4; 83. Stacking plate. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0023] The present invention will be further described below with reference to embodiments.

[0024] See attached document Figure 1-9 An automatic stator chip assembly device includes a frame 1, a positioning and assembly module, a pressing module, an unloading module, and a mechanical transmission module driven by a motor.

[0025] The positioning sleeve module includes a vertically arranged mandrel 5 and a straightening sleeve 7 surrounding its outer circumference. The stator iron chip is inserted into the mandrel 5 from bottom to top through its central hole to achieve stacking. The mandrel 5 has multiple mounting slots 51 circumferentially. Each mounting slot 51 is provided with an elastic element 53 and an elastic expansion plate 52 connected to it. When the stator iron chip is inserted, the elastic expansion plate 52 expands slightly outward radially under the elastic force of the elastic element 53, fitting against the inner wall of the iron chip, achieving self-centering and anti-displacement. The upper end of the mandrel 5 is also provided with a positioning hole 54 for subsequent locking and fixing. The lower end of the elastic expansion plate 52 has an arc-shaped chamfer to facilitate the insertion of the stator iron chip. The elastic element 53 can be a metal spring.

[0026] In addition, the straightening sleeve 7 is fixed to the upper surface of the frame 1, and its inner wall is provided with multiple elastic paddles 71. The free end of the paddle is arc-shaped, which can flexibly guide and initially straighten the outer edge of the stator iron chip when it enters. Sufficient feeding gap is maintained between the straightening sleeve 7 and the pressure ring 2 to avoid interference.

[0027] like Figures 2 to 4 As shown, the mechanical transmission module is driven by the same motor and includes a synchronous belt drive 36, a pressing cam 32, and a retracting cam 33. The pressing cam 32 and the retracting cam 33 rotate synchronously through the synchronous belt drive 36. The upper swing arm 3 is hinged in the middle to the bracket 11 at the upper end of the frame 1. One end of the upper swing arm 3 is equipped with a roller 31, which is always in contact with the outer contour of the pressing cam 32. The other end is hinged to the push rod 25. The lower swing arm 34 is hinged in the middle inside the frame 1. One end of the lower swing arm 34 is equipped with a roller 35, which is always in contact with the outer contour of the retracting cam 33. The other end is hinged to the push rod 41.

[0028] like Figure 4 and Figure 5 As shown, the pressing module includes a pressing ring 2, which is located directly below the spindle 5. A push rod 25 is fixedly connected to the upper side of the pressing ring 2. The upper end of the push rod 25 is hinged to one end of the upper swing rod 3. The pressing ring 2 has multiple sliding grooves 21 evenly distributed around its circumference. A movable plate 23 is slidably arranged in each sliding groove 21. Several flexible pressure rollers 24 are installed on the lower side of the movable plate 23. A lead screw 22 is also rotatably installed in each sliding groove 21. The lead screw 22 is driven by an independent motor and is threaded to the upper part of the movable plate 23. By controlling the rotation of the lead screw 22, the movable plate 23 can be driven to slide along the sliding groove 21, thereby moving and flattening the stator iron chip, so that the flexible pressure rollers 24 can accurately apply circumferential flattening force.

[0029] During the pressing process of the pressure ring 2, each flexible pressure roller 24 moves and flattens the stator iron chip under the drive of the lead screw 22. When the pressure ring 2 descends with the upper swing rod 3, the flexible pressure roller 24 quickly contacts the upper surface of the iron chip and applies a uniform and flexible flattening force synchronously along its circumference to achieve rapid movement and correction of the warped area. At the same time, during the unloading stage, the flexible pressure roller 24 can move to the edge of the pressure ring 2 to avoid obstructing the unloaded stator iron chip and ensure the continuity and reliability of the stacking process.

[0030] As shown in Figure 4, the unloading module includes a top ring 4, which surrounds the spindle 5 and is set on the upper surface of the frame 1. A push rod 41 is fixedly connected to the lower side of the top ring 4. The lower end of the push rod 41 passes through the through hole 14 on the frame 1 and is hinged to one end of the lower swing rod 34.

[0031] In one complete cam rotation cycle, the pressing and unloading actions are completed in a coordinated sequence as follows: Pressing stage: When the protruding section of the pressing cam 32 rotates to contact the roller 31, it pushes one end of the upper swing rod 3 to lift up, causing it to swing around the central hinge point. The other end drives the push rod 25 and the pressing ring 2 to descend synchronously. At this time, the unloading cam 33 is at its lowest point, the roller 35 is at its lowest position, the lower swing rod 34 remains stationary, and the top ring 4 is at its lower limit position under the action of the reset spring 42, without interfering with the pressing operation. After the pressing ring 2 descends, the flexible pressing roller 24 applies circumferential flexible pressure to the stator iron chip at the top of the spindle 5, effectively eliminating warping deformation.

[0032] Unloading stage: After the pressing is completed, the pressing cam 32 continues to rotate, the protruding section disengages from the roller 31, the upper swing rod 3 swings back under the action of the return spring 26, the pressing module is lifted, at the same time, the protruding section of the unloading cam 33 rotates to contact the roller 35, pushes the lower swing rod 34 to swing, and then pushes the top ring 4 upward through the push rod 41. The top ring 4 rises coaxially along the spindle 5, pushing the flattened stator iron chip as a whole to the stacking area at the lower end of the spindle 5, completing one stacking feed.

[0033] Thus, within a continuous cam rotation stroke, the two key actions of pressing and unloading are completed sequentially and without interference, ensuring the timing coordination and operational reliability of the stacking process.

[0034] To ensure reliable operation, push rod 25 slides through guide sleeve 13 fixed on bracket 11, and a return spring 26 is fitted on it. One end of the return spring 25 abuts against the boss of push rod 25, and the other end is fixed to the outer wall of guide sleeve 13. It is used to automatically reset the pressing module after the pressing is completed. Similarly, push rod 41 slides through guide sleeve 12 fixed inside frame 1, and a return spring 42 is fitted on it. It is used to make the top ring 4 fall back automatically after the unloading is completed.

[0035] Furthermore, a fixed seat 6 is provided at the upper end of the frame 1, and a movable frame 61 is slidably installed inside it. The movable frame 61 is driven to move up and down by a cylinder 62. A cylinder 63 is installed at its upper end. The piston rod of the cylinder 63 is connected to a locking rod 64. When the mandrel 5 needs to be replaced, the cylinder 62 drives the movable frame 61 to rise, and the cylinder 63 retracts, causing the locking rod 64 to exit the positioning hole 54 at the top of the mandrel 5. After the replacement is completed, the locking rod 64 is reinserted into the positioning hole 54 to achieve axial and circumferential locking of the mandrel 5 and prevent shaking during the pressing or unloading process.

[0036] On both sides of the mandrel 5, cylinder 3 8 is installed on the frame 1, and its piston end is connected to the top frame 81. Cylinder 4 82 is installed on the top frame 81, and its piston end is connected to the stacking plate 83. The bottom of the stacking plate 83 slides in the guide groove of the top frame 81. When the top ring 4 pushes a stator iron chip to the lower end of the mandrel 5, cylinder 4 82 drives the two stacking plates 83 to move towards each other, supporting the stator iron chip from both sides. Then, cylinder 3 8 drives the top frame 81 to rise briefly, and the stacking plate 83 lifts the stator iron chip a short distance upward, leaving clear stacking space for the next iron chip, thereby realizing the orderly stacking of stator iron chips.

[0037] The entire feeding process is completed by the robotic arm 15. The robotic arm 15 picks up a single stator iron chip from the hopper and accurately sends it into the straightening sleeve 7, thus starting the above-mentioned automatic chip-feeding cycle.

[0038] This device uses a cam rotation cycle driven by a motor and the phase design of the pressing cam 32 and the unloading cam 33 to separate the pressing and unloading actions in time. That is, the pressing is done first and then the pushing is done. The two actions do not interfere with each other and are strictly synchronized, which effectively improves the stacking accuracy, efficiency and equipment stability.

[0039] In summary, firstly, the robotic arm 15 picks up a single stator iron chip from the hopper or conveyor belt and precisely feeds it into the orthopedic sleeve 7 fixed on the upper surface of the frame 1. During the entry process, the arc-shaped elastic paddle 71 arranged circumferentially inside the orthopedic sleeve 7 flexibly guides and initially orthopedically shapes the outer edge of the iron chip. Then, the motor drives the synchronous belt transmission component 36 to drive the pressing cam 32 and the unloading cam 33 to rotate synchronously. When the protruding section of the pressing cam 32 pushes the upper swing arm 3 to swing, the pressure ring 2 descends, and the circumferentially arranged flexible pressure roller 24 applies a uniform circumferential flattening force to the iron chip to eliminate warping. At this time, the ejector cam 33 is in the base circle section, and the top ring 4 remains stationary to avoid interference. After flattening, the pressing cam 32 rotates through the protruding section, and the pressing module is lifted under the action of the return spring 26. At the same time, the protruding section of the ejector cam 33 pushes the lower swing arm 34 to swing, so that the top ring 4 rises coaxially along the spindle 5, pushing the flattened iron chip to the stacking area at the lower end of the spindle 5. Subsequently, cylinder 4 82 drives stacking plate 83 to support the iron chip, and cylinder 3 8 briefly lifts stacking plate 83 to reserve stacking space for the next chip. The inner hole of the stator iron chip is adaptively tightened by the elastic expansion plate 52 on the spindle 5 to achieve centering and anti-deviation. At this point, a complete automatic chip stacking cycle ends and the device enters the next cycle.

[0040] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. An automatic stator lamination device, characterized in that, The system includes a frame (1), a positioning sleeve module, a pressing module, an ejector module, and a mechanical transmission module. The positioning sleeve module includes a mandrel (5) and a straightening sleeve (7). The stator iron chip is inserted into the mandrel (5) through its central hole to achieve stacking. The pressing module and the ejector module are both connected to the mechanical transmission module. The pressing module descends as the mechanical transmission module rotates, applying a circumferential flattening action to the warped stator iron chip. Simultaneously, after the pressing is completed, the ejector module pushes the stator iron chip coaxially along the mandrel (5) to complete the stacking feed.

2. The automatic stator lamination device according to claim 1, characterized in that, The mechanical transmission module includes an upper swing arm (3), the middle of which is hinged to a bracket (11) fixedly mounted on the upper end of the frame (1). One end of the upper swing arm (3) is rotatably equipped with a roller (31), and a pressing cam (32) is rotatably mounted on the lower side of the bracket (11). The pressing cam (32) is in contact with the roller (31), and the other end of the upper swing arm (3) is movably connected to the pressing module. When the protruding part of the pressing cam (32) rotates to be in contact with the roller (31), the pressing cam will... One end of the upper swing arm (3) is pushed upward, causing the other end to drive the pressing module to descend and press the material. The inner side of the frame (1) is rotatably provided with a material ejection cam (33). The middle part of the lower swing arm (34) is hinged inside the frame (1), and one end of the lower swing arm (34) is rotatably provided with a roller (35) that is in contact with the material ejection cam (33). The other end of the lower swing arm (34) is movably connected to the material ejection module. The shaft between the material ejection cam (33) and the pressing cam (32) is connected by a synchronous belt transmission component (36) and driven by a motor.

3. The automatic stator lamination device according to claim 2, characterized in that, The tablet compression module includes a compression ring (2), and a push rod (25) is fixedly installed on the upper side of the compression ring (2). The upper end of the push rod (25) is hinged to the upper swing rod (3). A sliding groove (21) is opened circumferentially on the compression ring (2). A moving plate (23) is slidably installed in each sliding groove (21). Several flexible pressure rollers (24) are installed on the lower side of the moving plate (23). A lead screw (22) is rotatably installed in each sliding groove (21). The lead screw (22) is driven by a motor and threadedly connected to the upper side of the moving plate (23).

4. The automatic stator lamination device according to claim 3, characterized in that, The unloading module includes a top ring (4), which is located on the upper surface of the frame (1). A push rod (41) is fixedly connected to the lower side of the top ring (4). The lower end of the push rod (41) passes through the through hole (14) opened in the frame (1) and is hinged to the lower swing rod (34).

5. The automatic stator lamination device according to claim 4, characterized in that, The push rod 1 (25) passes through and slides inside the guide sleeve 2 (13) fixed on the bracket (11). A reset spring 1 (26) is sleeved on the push rod 1 (25). One end of the reset spring 1 (26) is sleeved on the boss of the push rod 1 (25), and the other end is fixedly connected to the outer wall of the guide sleeve 2 (13). The push rod 2 (41) passes through and slides inside the guide sleeve 1 (12) fixed on the inner side of the frame (1). A reset spring 2 (42) is sleeved on the push rod 2 (41). One end of the reset spring 2 (42) is sleeved on the boss of the push rod 2 (41), and the other end is fixedly connected to the outer wall of the guide sleeve 1 (12).

6. The automatic stator lamination device according to claim 1, characterized in that, The mandrel (5) has a mounting groove (51) circumferentially open. Several elastic elements (53) are provided in the mounting groove (51). The elastic elements (53) are connected to the elastic expansion plate (52) which is slidably connected in the mounting groove (51). The upper end of the mandrel (5) has a positioning hole (54). The mandrel (5) is located above the tablet pressing module.

7. The automatic stator lamination device according to claim 6, characterized in that, A fixed seat (6) is fixedly installed at the upper end of the frame (1). A movable frame (61) is slidably installed in the movable slot opened in the fixed seat (6). The movable frame (61) moves up and down by a cylinder (62). A cylinder (63) is installed at the upper end of the movable frame (61). The piston end of the cylinder (63) is fixedly connected to the locking rod (64). The locking rod (64) is inserted into the positioning hole (54) at the upper end of the spindle (5).

8. The automatic stator lamination device according to claim 1, characterized in that, The orthopedic sleeve (7) is provided with an elastic paddle (71) in the inner circumference. The free end of the elastic paddle (71) is arc-shaped. The orthopedic sleeve (7) is fixed on the upper surface of the frame (1) and a feeding gap is maintained between it and the pressing module for the stator iron chip to enter.

9. The automatic stator lamination device according to claim 8, characterized in that, Cylinder 3 (8) is installed on the frame (1) on both sides of the orthopedic sleeve (7). The piston end of cylinder 3 (8) is connected to the top frame (81). Cylinder 4 (82) is installed on one side of the top frame (81). The piston end of cylinder 4 (82) is connected to the stacking plate (83). The bottom of the stacking plate (83) is slidably connected to the guide groove opened on the top frame (81). The two stacking plates (83) are symmetrically located on both sides of the mandrel (5).

10. The automatic stator lamination device according to claim 1, characterized in that, The frame (1) is equipped with a robotic arm (15) on the loading side. The robotic arm (15) is used to clamp the stator iron chip and feed it into the orthopedic sleeve (7) to complete the automatic loading.

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