Motor stator swing punching die and punching die control method thereof

Abstract

The invention discloses a motor stator swing punching die and a punching die control method thereof, and relates to the technical field of motor stator dies. The motor stator swing punching die comprises a punching driving assembly, a connecting rod receiving and conveying mechanism, a magnetic mechanism, a rigid knockout mechanism, a swing feeder, an upper die, a lower die and a guiding and positioning assembly. The magnetic mechanism is installed on the upper die, the blanking driving assembly controls the punch press sliding block and the upper die to move upwards, the magnetic mechanism magnetically attracts a blanked semi-finished product to synchronously move upwards, the punch press material receiving hand is controlled to move to the position between the upper die and the lower die, and the semi-finished product is transferred to the punch press material receiving hand through the rigid material ramming mechanism in the upper die. According to the swing punching die for the motor stator, a whole roll of material can be adopted for punching through a swing punching process, punching sheets are punched alternately, materials are greatly saved, and the material utilization rate is increased by at least 5% or above; and meanwhile, automatic feeding can be achieved in cooperation with a swing feeder, the requirement for the technical strength of operators is reduced, and the operation strength is reduced.

Description

Technical Field

[0001] This invention relates to the field of motor stator mold technology, and more specifically to a motor stator swing punching die and its punching die control method. Background Technology

[0002] A die, with a specific contour or internal cavity shape, uses the contour shape with cutting edges to separate the blank along the contour line (punching). The internal cavity shape allows the blank to obtain a corresponding three-dimensional shape. A die generally consists of two parts: a moving die and a fixed die (or a punch and a die), which can be separated and joined. When separated, the workpiece is removed; when joined, the blank is injected into the die cavity to form the shape. Dies are precision tools with complex shapes, withstand the expansion force of the blank, and have high requirements for structural strength, rigidity, surface hardness, surface roughness, and machining accuracy.

[0003] The stator core is a crucial component of the motor's magnetic circuit. Together with the rotor core and the air gap between the stator and rotor, it forms the complete magnetic circuit of the motor. The stator core is a vital component of the stator and a major part of the motor's magnetic circuit. It consists of parts such as sector-shaped plates, ventilation slots, positioning ribs, upper and lower toothed pressure plates, tension bolts, and support plates. The stator core is made by stamping silicon steel sheets into sector-shaped plates and stacking them on the positioning ribs. The positioning ribs are welded to the frame ring plate via support plates, and the core is pressed together into a single unit by the upper and lower toothed pressure plates and tension bolts. The core also houses the windings. During generator operation, the core is subjected to a combination of mechanical forces, thermal stress, and electromagnetic forces.

[0004] With the continuous increase in manufacturing demand, the structure of motor stator oscillating punch dies needs to be optimized to improve production efficiency. Meanwhile, the smooth execution of the punching action is often ensured by maintaining the cleanliness of the stator blank. However, if metal chips accumulate on the punching edge during the punching process, they will inevitably accumulate at the lower die position, causing die jamming or scratching the workpiece. Therefore, improving the functionality of the equipment itself is also of paramount importance. Summary of the Invention

[0005] To address the technical problems existing in the prior art, the present invention provides a motor stator oscillating punch die and a punch die control method thereof, which can effectively solve the technical problems existing in the prior art.

[0006] The present invention specifically adopts the following technical solution: A motor stator oscillating punching die includes a punching drive assembly, a connecting rod material receiving and conveying mechanism, a magnetic mechanism, a rigid feeding mechanism, an oscillating feeder, an upper die, a lower die, and a guide and positioning assembly. The punching drive assembly includes a main servo motor, a flywheel, a crankshaft, a connecting rod, a punch press frame, and a punch press slide. The flywheel is mounted on the output end of the main servo motor, and the crankshaft is hinged to the flywheel. The top end of the connecting rod is hinged to the eccentric journal of the crankshaft, and the bottom end of the connecting rod is hinged to the punch press slide. The punch press frame is equipped with... The punch press slide is fitted with a sliding groove, and adjustable height limit blocks are installed on both sides of the punch press frame and the punch press slide. A common adjustable height limit block has the following structure: the main body of the limit block is T-shaped or square, with an internally threaded hole machined at the bottom; a lifting screw is fixed on the mounting base of the punch press frame, and the screw engages with the internal thread of the limit block; an adjustment drive structure (such as a hexagonal head, handwheel, or worm gear) is provided at the top or bottom of the screw; when the adjustment drive structure is rotated, the screw will drive the limit block to move linearly up and down along the screw axis. The thread pitch determines the adjustment accuracy; the smaller the thread pitch, the smaller the height adjustment amount per rotation, and the higher the accuracy. After adjustment, the limit block and screw are locked together by a lock nut to prevent displacement of the limit block due to vibration during punch press operation.

[0007] The linkage material receiving and conveying mechanism includes a base frame, a linkage rod, a right-angle member, a first support rod, a second support rod, a punch press receiving hand, and a conveying table. The right-angle point of the right-angle member is hinged to the base frame, the non-right-angle point of the right-angle member is hinged to one end of the linkage rod, the other end of the linkage rod is hinged to the punch press slider, the other non-right-angle point of the right-angle member is connected to the first support rod, the first support rod is hinged to the second support rod, the second support rod is hinged to the punch press receiving hand, and the punch press receiving hand slides above the conveying table via a linear guide rail. The upper die is installed at the bottom of the punch press slide, and the lower die is installed below the upper die. The guide positioning component includes a buffer spring and the guide positioning component is symmetrically distributed at the corners of each die holder. The upper die is provided with a punch and the lower die is provided with a die. The end face of the punch is provided with a punching cutting edge. The punch and the die cooperate to complete the punching of the raw material. The rigid feeding mechanism includes a crossbar, a push rod, a feeding plate, a center feeding rod, an edge feeding rod, and a stripper plate. A vertically movable crossbar is installed inside the punch press slide. The punch press slide has a through-hole, and a push rod is slidably installed within the center hole. The bottom end of the crossbar is connected to the push rod, and the bottom end of the push rod is connected to the feeding plate. An edge feeding rod is provided on the outer edge region of the bottom end of the feeding plate, and a center feeding rod is provided in the central region of the bottom end of the feeding plate. The bottom ends of the edge feeding rods are connected to the stripper plate. The upper mold has a through hole for the central ejector rod and stripper plate to pass through and extend out of the bottom surface of the upper mold. A return spring is provided at the top of the central ejector rod. When the punch press slide returns upward, when it is about to reach the upper limit point, the crossbar hits the upper limit block before the punch press slide. The punch press slide continues to move upward, and the crossbar is restricted to move in the opposite direction to the punch press slide. Through the displacement of the push rod connected to the bottom of the crossbar, the central ejector rod and stripper plate are finally moved out of the lower surface of the upper mold, and the semi-finished product is separated from the mold cavity in the upper mold. The magnetic mechanism is installed on the upper die, specifically on the bottom surface of the upper die. During the upward movement of the punching drive assembly, the magnetic mechanism magnetically attracts the semi-finished product after punching and moves it upward synchronously. The punching slide is linked with the connecting rod receiving and conveying mechanism to control the punch receiving hand to move between the upper and lower dies. The semi-finished product is transferred to the punch receiving hand through the rigid feeding mechanism in the upper die. Subsequently, the punch receiving hand moves out between the upper and lower dies, and the displacement of the oscillating feeder synchronously changes the position of the raw material relative to the lower die. The punching drive assembly then executes the next punching action.

[0008] In some embodiments, a plum blossom core is installed on the upper mold, with the plum blossom core partially nested inside the upper mold and the bottom surface of the plum blossom core corresponding to the bottom surface of the upper mold. The central ejector rod extends through the plum blossom core to eject material, and the stripper plate is installed around the outer periphery of the plum blossom core. A pressing head is provided at the top of the central ejector rod, and a reset spring is nested at the bottom of the pressing head.

[0009] In some embodiments, the magnetic mechanism includes a plurality of magnets arranged circumferentially on a core.

[0010] In some embodiments, the oscillating feeder includes a conveyor platform, a first ball screw, a first servo motor, a conveying roller, and a second servo motor. The conveyor platform is driven by the first servo motor to perform lateral displacement of the ball screw, and the second servo motor, in conjunction with the conveying roller, conveys raw materials forward on the conveyor platform.

[0011] In some embodiments, a separation and sorting mechanism is also included, which includes a first separation rail, a first collection area, a second separation rail, and a second collection area. The punch press receiving hand transfers the semi-finished products punched from the raw materials. The semi-finished products include stator finished products and decorative strips. The first separation rail has a hollow structure in the middle, and the width of the hollow structure is greater than the width of the decorative strips. A second separation rail is installed below the first separation rail. The stator finished products are transferred to the first collection area for collection, and the decorative strips are transferred to the second collection area for collection.

[0012] In some embodiments, the guiding and positioning assembly includes a guide sleeve and a guide post. The guide sleeve is fixed to the upper mold, and the guide post is fixed to the lower mold. The guide sleeve and the guide post are in a rolling engagement, and the buffer spring is mounted on the guide post. The rolling engagement is achieved by converting sliding friction into rolling friction through the built-in balls or rollers in the guide sleeve, and is often used in high-precision, high-frequency mold applications.

[0013] The guide positioning component effectively ensures the relative positioning accuracy of the upper and lower dies and the punch and die; the blanking drive component works in conjunction with the oscillating feeder to achieve precise oscillating blanking of the punch, reducing the forming deviation of traditional blanking, improving the dimensional accuracy and product consistency of the motor stator blanking, and reducing the defect rate.

[0014] In some embodiments, an electromagnetic adsorption module and a telescopic drive module are also included. The electromagnetic adsorption module is used to adsorb iron filings in the lower cavity of the motor stator swing punch. The electromagnetic adsorption module includes an electromagnetic disk, a mounting base and a magnetic shielding plate. The electromagnetic disk is installed at the bottom of the mounting base and the magnetic shielding plate is disposed between the electromagnetic disk and the mounting base. The telescopic drive module is used to drive the electromagnetic adsorption module to complete reciprocating motion. It includes a third servo motor, a second ball screw, and a telescopic arm. The third servo motor is connected to the second ball screw via a transmission. One end of the telescopic arm is fixedly connected to the electromagnetic disk, and the other end is rigidly connected to the nut seat of the second ball screw.

[0015] Furthermore, a linear guide rail and a photoelectric limit switch can be provided. The linear guide rail is arranged parallel to both sides of the telescopic arm and fixed to the telescopic arm by a slider. The photoelectric limit switches are respectively set in the standby position and the cleaning position of the telescopic arm. A dustproof and chipproof cover and an elastic buffer pad are provided. The dustproof and chipproof cover is sleeved on the outside of the telescopic arm and the guide rail, and the elastic buffer pad is installed on the edge of the electromagnetic disk adsorption surface.

[0016] In some embodiments, a waste collection bin is also included, which is located below the electromagnetic disk release position. A guide funnel is provided on the top of the waste collection bin, and a liquid level sensor for detecting the height of iron filings accumulation is installed on its side. When the liquid level sensor triggers a threshold, an alarm signal is automatically issued by an alarm device.

[0017] A method for controlling the stamping die of a motor stator oscillating punch includes the following steps: S1: Set the punching speed v according to the specifications of the motor stator lamination to be processed. The range of punching speed v is 50-200mm / s. S2: Raw material positioning, placing the raw material into the oscillating feeder and positioning it above the upper die of the lower mold; S3: Start the punching drive assembly so that the punch slide punches downward along the predetermined trajectory, and the punch and die cooperate to punch the blank; S4: When the punch press slide returns upward, the oscillating feeder controls the material to move laterally in the first direction by a set distance. At the same time, the connecting rod receiving and conveying mechanism moves between the upper and lower dies to receive the material. While the punch press slide performs the next downward punching action, the connecting rod receiving and conveying mechanism moves out from between the upper and lower dies. After completing this downward punching action, the oscillating feeder controls the material to be conveyed forward to re-execute the punching action. S5: After completing the punching action in step S4, the oscillating feeder controls the raw material to move laterally in the second direction by a set distance, wherein the first direction is opposite to the second direction. Steps S4 and S5 are repeated continuously to achieve mass production of motor stator laminations.

[0018] A method for controlling the stamping die of a motor stator oscillating punch includes the following steps: S1: Set the punching speed v according to the specifications of the motor stator lamination to be processed. The range of punching speed v is 50-200mm / s. S2: Raw material positioning, placing the raw material into the oscillating feeder and positioning it above the upper die of the lower mold; S3: Start the punching drive assembly so that the punch slide punches downward along the predetermined trajectory, and the punch and die cooperate to punch the blank; S4: When the punch press slide returns upward, the oscillating feeder controls the material to move laterally in the first direction by a set distance. At the same time, the connecting rod receiving and conveying mechanism moves between the upper and lower dies to receive the material. While the punch press slide performs the next downward punching action, the connecting rod receiving and conveying mechanism moves out from between the upper and lower dies. After completing this downward punching action, the oscillating feeder controls the material to be conveyed forward to re-execute the punching action. S5: After completing the punching action in step S4, the oscillating feeder controls the raw material to move laterally in the second direction by a set distance, wherein the first direction is opposite to the second direction. Steps S4 and S5 are repeated continuously to achieve mass production of motor stator laminations. S6: When iron filings need to be cleaned, the cleaning mode is activated. After the punching action is completed, the punch press slide drives the upper die to reset upward. When the punch moves to a safe height of ≥20mm from the surface of the lower die, the position sensor installed on the punch press slide triggers the iron filings cleaning signal. The telescopic drive module drives the electromagnetic disk to extend into the cleaning position of the lower die cavity. After being powered on and adsorbing iron filings for 0.2-0.3s, the disk is moved to the collection position and the power is cut off to release the iron filings. Then the disk resets to the standby position.

[0019] The above control methods clarify the operation steps, action flow, and some technical details of control in conjunction with the motor stator swing punch die structure.

[0020] The advantages of this invention are as follows: 1. The motor stator oscillating punch die of this invention can use whole rolls of material for punching through the oscillating punching process, with punches inserted and cut, which greatly saves materials and improves material utilization by at least 5%; at the same time, it can be used in conjunction with an oscillating feeder to achieve automatic feeding, reduce the technical strength requirements of operators, reduce the intensity of operation, ensure the safety of operators, and enable one person to operate multiple machines; overall, it can improve production efficiency by more than 50%.

[0021] 2. In this invention, the rigid feeding mechanism, the magnetic mechanism, and the connecting rod receiving and conveying mechanism work together to efficiently transfer the punched semi-finished products to the connecting rod receiving and conveying mechanism. Finally, the separation and sorting mechanism sorts, collects, and stores the finished products, resulting in high processing efficiency.

[0022] 3. This invention ensures processing stability by automating the cleaning of iron filings. The integrated electromagnetic adsorption module and telescopic drive module achieve fully automated iron filings cleaning without manual intervention. Compared with traditional manual cleaning or passive chip removal methods, it not only avoids problems such as workpiece surface scratches and die edge wear caused by iron filings remaining in the die cavity, but also ensures the continuity of the blanking process, avoids processing interruptions caused by manual cleaning, and improves the stability of equipment operation.

[0023] 4. In this invention, the electromagnetic adsorption module adopts an electromagnetic disk and magnetic shielding plate structure, which can accurately adsorb fine iron filings; at the same time, the disk can be designed to match the groove of the lower die, and its depth and size can be flexibly adapted to different specifications of lower die cavities according to needs, increasing the contact area with iron filings and further improving the cleaning effect; the telescopic drive module adopts a servo motor and ball screw drive, which has high positioning accuracy and fast response speed, ensuring precise linkage between cleaning action and punching action without occupying extra processing time. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the rigid feeding mechanism in this invention; Figure 2 yes Figure 1Enlarged view of a portion of point A in the middle; Figure 3 This is a schematic diagram of the mold structure in this invention; Figure 4 This is a schematic diagram of the magnet installation and distribution in this invention; Figure 5 This is a schematic diagram of the punch structure in this invention; Figure 6 This is a schematic diagram of the structure of the concave mold in this invention; Figure 7 This is a simplified schematic diagram illustrating the principle of material feeding using a crossbar in this invention. Figure 8 This is a schematic diagram of the structure of the oscillating feeder in this invention; Figure 9 This is a schematic diagram of the structure of the guiding and positioning component in this invention; Figure 10 This is a schematic diagram of the linkage receiving and conveying mechanism in this invention; Figure 11 This is a schematic diagram of the separation and slicing mechanism in this invention; Figure 12 This is a schematic diagram of the structure of the telescopic drive module and the electromagnetic adsorption module in this invention. Figure 13 This is a schematic diagram of the internal structure of the electromagnetic adsorption module in this invention; Figure 14 This is a schematic diagram of the distribution of each ejector rod in the upper mold of the present invention; Figure 15 yes Figure 14 A magnified view of a section at point B.

[0025] Reference numerals: 1. Blanking drive assembly; 100. Connecting rod; 101. Punch press frame; 102. Punch press slide; 103. Limiting block; 2. Upper die; 21. Punch; 22. Blanking cutting edge; 23. Mating hole; 24. Plum blossom core; 3. Lower die; 31. Die; 4. Magnetic mechanism; 41. Magnet; 5. Rigid ejection mechanism; 51. Crossbar; 52. Push rod; 53. Ejection plate; 54. Center ejection rod; 541. Return spring; 542. Extrusion head; 55. Edge ejection rod; 56. Stripper plate; 6. Guide positioning assembly; 601. Buffer spring; 602. Guide sleeve; 603. Guide post; 7. Oscillating feeder; 71. Conveyor platform; 72. Conveyor roller; 8. Linkage material receiving and conveying mechanism; 81. Base frame; 82. Linkage rod; 83. Right-angle component; 84. First support rod; 85. Second support rod; 86. Punch press receiving hand; 87. Conveyor table; 88. Right-angle point; 89. Non-right-angle point; 9. Separating and sorting mechanism; 91. First separating rail; 92. First collection area; 93. Second separating rail; 94. Second collection area; 10. Electromagnetic adsorption module; 104. Electromagnetic disk; 105. Mounting base; 106. Magnetic shielding plate; 11. Telescopic drive module; 111. Third servo motor; 112. Second ball screw; 113. Telescopic arm. Detailed Implementation

[0026] 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 embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0027] Example 1 like Figures 1 to 11 as well as Figure 14 , 15 As shown, this embodiment provides a motor stator oscillating punching die, including a punching drive assembly 1, a connecting rod receiving and conveying mechanism 8, a magnetic mechanism 4, a rigid feeding mechanism 5, an oscillating feeder 7, an upper die 2, a lower die 3, and a guide and positioning assembly 6; the punching drive assembly 1 includes a main servo motor, a flywheel, a crankshaft, a connecting rod 100, a punch press frame 101, and a punch press slide 102. The flywheel is installed at the output end of the main servo motor, and the crankshaft is hinged to the flywheel. The top end of the connecting rod 100 is hinged to the eccentric journal of the crankshaft, and the bottom end of the connecting rod 100 is hinged to the punch press slide 102. The punch press frame 101 is provided with a sliding groove adapted to the punch press slide 102. Adjustable height limit blocks 103 are installed on both sides of the punch press frame 101 and the punch press slide 102; the connecting rod 100 in the punching drive assembly 1 controls the up-and-down reciprocating motion of the punch press slide 102 using the principle of eccentric transmission.

[0028] The linkage receiving and conveying mechanism 8 includes a base frame 81, a linkage rod 82, a right-angle member 83, a first support rod 84, a second support rod 85, a punch press receiving hand 86, and a conveying table 87. The right-angle point 88 of the right-angle member 83 is hinged to the base frame 81, and the non-right-angle point 89 of the right-angle member 83 is hinged to one end of the linkage rod 82. The other end of the linkage rod 82 is hinged to the punch press slide 102. The other non-right-angle point of the right-angle member 83 is connected to the first support rod 84. The first support rod 84 is hinged to the second support rod 85, and the second support rod 85 is hinged to the punch press receiving hand 86. The punch press receiving hand 86 slides above the conveying table 87 via a linear guide rail. An upper die 2 is installed at the bottom of the punch press slide 102, and a lower die 3 is installed below the upper die 2. A guide and positioning assembly is also included. Component 6 includes a buffer spring 601, and guide positioning components 6 are symmetrically distributed at the corners of each mold base; a punch 21 is provided on the upper mold 2, and a die 31 is provided on the lower mold 3. The end face of the punch 21 is provided with a blanking edge 22. The punch 21 and the die 31 cooperate to complete the blanking of the raw material; the rigid ejection mechanism 5 includes a crossbar 51, a push rod 52, an ejection plate 53, a center ejection rod 54, an edge ejection rod 55, and a stripper plate 56. A crossbar 51 that can move up and down is provided in the punch press slide 102. The punch press slide 102 has a through center hole, and the push rod 52 is slidably installed in the center hole. The bottom end of the crossbar 51 is connected to the push rod 52, and the bottom end of the push rod 52 is connected to the ejection plate 53. The outer edge area of ​​the bottom end of the ejection plate 53 is provided with an edge ejection edge. A central ejector bar 54 is provided in the center area of ​​the bottom end of the ejector plate 53. The bottom end of the edge ejector bar 55 is connected to the stripper plate 56. A mating hole 23 is provided in the upper die 2 for the central ejector bar 54 and the stripper plate 56 to extend out of the bottom surface of the upper die 2. A return spring 541 is provided at the top end of the central ejector bar 54. When the punch press slide 102 returns upward, when it is about to reach the upper limit point, the crossbar 51 touches the upper limit block 103 before the punch press slide 102. The punch press slide 102 continues to move upward, and the crossbar 51 is restricted to move in the opposite direction to the punch press slide 102. Through the displacement of the push rod 52 connected to the bottom end of the crossbar 51, the central ejector bar 54 and the stripper plate 56 are finally moved out of the lower surface of the upper die 2, and the semi-finished product is removed. The upper die 2 has a cavity; the magnetic mechanism 4 is installed on the upper die 2. The punching drive assembly 1 controls the upper die 2 to move upward. During the upward movement of the upper die 2, the magnetic mechanism 4 magnetically attracts the semi-finished product after punching and moves upward synchronously. The upper die 2 is linked with the connecting rod receiving and conveying mechanism 8 to control the upper die receiving hand 86 to move between the upper die 2 and the lower die 3. The semi-finished product is transferred to the upper die receiving hand 86 through the rigid feeding mechanism 5 in the upper die 2. During the downward movement of the upper die 2, the upper die 2 is controlled by the punching drive assembly 1. The upper die 2 is linked with the connecting rod receiving and conveying mechanism 8 to control the upper die receiving hand 86 to move out between the upper die 2 and the lower die 3. The oscillating feeder 7 moves synchronously to change the position of the raw material relative to the lower die 3. The punching drive assembly 1 then executes the next punching action.

[0029] A plum blossom core 24 is installed on the upper mold 2. A central ejector rod 54 extends through the plum blossom core 24 to eject material. A stripper plate 56 is installed around the outer periphery of the plum blossom core 24. A pressing head 542 is provided at the top of the central ejector rod 54, and a return spring 541 is nested at the bottom of the pressing head 542. The magnetic mechanism 4 includes several magnets 41, which are distributed circumferentially on the plum blossom core 24.

[0030] Combination Figure 4 as well as Figure 14 It can be seen that magnet 41 is installed on the plum blossom core 24, and specifically magnet 41 is installed on the outside of the central ejector rod 54. After punching, the semi-finished product is placed on the upper die 2 (specifically... Figure 14 After the magnet 41 on the plum blossom core 24 is attracted, the magnet 41 is attracted to the junction area between the flower petal part in the semi-finished product and the finished stator part. When the rigid feeding mechanism 5 is activated to drop the semi-finished product onto the punch press receiving hand 86, the central feeding rod 54 is responsible for feeding the decorative strip portion of the semi-finished product, and the stripper plate 56 at the bottom of the edge feeding rod 55 feeds the stator finished portion of the semi-finished product; the decorative strip structure and the stator finished product structure are as follows. Figure 5 The mold cavity is known.

[0031] The oscillating feeder 7 includes a conveyor platform 71, a first ball screw, a first servo motor, a conveyor roller 72, and a second servo motor. The conveyor platform 71 is driven by the first servo motor to move the ball screw laterally, and the second servo motor, in conjunction with the conveyor roller 72, conveys the raw materials forward on the conveyor platform 71.

[0032] It also includes a sheet separation mechanism 9, which includes a first separation rail 91, a first collection area 92, a second separation rail 93, and a second collection area 94. The punch press receiving hand 86 transfers the semi-finished products punched from the raw materials. The semi-finished products include stator finished products and decorative strips. The middle part of the first separation rail 91 has a hollow structure, and the width of the hollow structure is greater than the width of the decorative strip. The second separation rail 93 is installed below the first separation rail 91. The stator finished products are transferred to the first collection area 92 for collection, and the decorative strips are transferred to the second collection area 94 for collection.

[0033] The guide positioning component 6 includes a guide sleeve 602 and a guide post 603. The guide sleeve 602 is fixed to the upper mold 2, and the guide post 603 is fixed to the lower mold 3. The guide sleeve 602 and the guide post 603 are in rolling engagement, and a buffer spring 601 is installed on the guide post 603.

[0034] It should be noted that oil holes are provided on both the upper and lower die plates 3 of the mold. The cooling principle is to atomize the lubricating cooling oil with compressed air and then deliver it to the cutting edges of the punch 21 and die 31 through pipes, thereby reducing the heat generation during the punching process and improving the performance.

[0035] Taking the motor stator oscillating punch die in this embodiment as an example, from an overall perspective: the punching drive assembly 1 controls the punch press slide 102 to move upward, the upper die 2 is installed at the bottom of the punch press slide 102, part of the structure of the rigid ejection mechanism 5 is installed inside the punch press slide 102, and the remaining structure is specifically installed in the upper die 2; the magnet 41 attracts the various structures contained in the semi-finished product, and the semi-finished product moves upward synchronously with the punch press slide 102 and the upper die 2; the rigid ejection mechanism 5 ejects the punched semi-finished product out of the mold cavity of the upper die 2 in the short time between the upward and downward movement of the punch press slide 102. Inside, the force exerted by the ejector rod is greater than the force exerted by the magnetic attraction of the semi-finished product. At this time, the connecting rod receiving and conveying mechanism 8 is linked with the punch press slider 102. Specifically, the punch press receiving hand 86 in the connecting rod receiving and conveying mechanism 8 moves to the space between the upper die 2 and the lower die 3 to catch the ejected semi-finished product. Then, the punch press receiving hand 86 moves out from between the upper die 2 and the lower die 3, and the semi-finished product continues to be transferred to the separating and sorting mechanism 9. Finally, the semi-finished products (including the stator finished product and the decorative piece) are collected separately. Specifically, the stator finished product is transferred to the first collection area 92 for collection, and the decorative piece is transferred to the second collection area 94 for collection.

[0036] Explanation of each structure: The main servo motor rotates, driving the flywheel to rotate, and the crankshaft fixed on the flywheel also rotates. Two connecting rods 100 are provided in the punching drive assembly 1. The upper ends of the two connecting rods 100 are installed at the eccentric journal of the crankshaft, and the lower ends are installed on the punch press slide 102. The rotation of the crankshaft causes the connecting rods 100 and the slide to move up and down. The double-connecting rod structure, one on each side, ensures more even punching force, reduces the risk of uneven load, and guarantees better guiding accuracy of the slide. The punch press receiving hand 86 in the connecting rod receiving and conveying mechanism 8 is a smooth metal plate structure. When the punch press receiving hand 86 moves between the upper die 2 and the lower die 3, the semi-finished product will fall onto the conveyor table 87 along the surface of the punch press receiving hand 86. (Reference) Figure 10 As shown in the structure, in the linkage receiving and conveying mechanism 8, the angle formed by the first support rod 84 and the second support rod 85 changes with the position of the punch press receiving hand 86 during equipment operation. The right-angle point 88 in the right-angle member 83 is the swing base point of the right-angle member 83. In practical applications, a side plate can be installed on the outside of the punch press slide 102, i.e. Figure 10 The outer plate of the connecting rod 100 structure in the middle blocking punching drive assembly 1, which moves synchronously with the punch press slide 102, can be regarded as part of the punch press slide 102; in Figure 1 In this diagram, only a schematic structure of the punch press slide 102 is shown. The shape and size of the punch press slide 102 can be flexibly set according to requirements. When the punch press slide 102 moves upward, the linkage rod 82 moves upward, and the non-right angle point 89 in the right angle member 83 moves upward. At this time, the right angle member 83 tilts with the right angle point 88 as the base point. The first support rod 84 and the second support rod 85 are pulled towards the punch press slide 102, and the punch press receiving hand 86 moves inward, that is, moves between the upper die 2 and the lower die 3. As the punch press slide 102 moves upward, the upper die 2 at the bottom of the punch press slide 102 moves upward synchronously. At this time, the rigid ejection mechanism 5 prepares to eject the semi-finished product from the mold cavity of the upper die 2. The core principle of the rigid ejection mechanism 5 is that when the punch press slide 102 returns upward, when it is close to the upper limit point, the crossbar 51 touches the upper limit block 103 before the punch press slide 102. The punch press slide 102 continues to move upward, and the crossbar 51 is restricted to exhibit a movement trend opposite to that of the punch press slide 102. The push rod 52 connected to the bottom of the crossbar 51 moves downward, and the ejection plate 53 at the bottom of the push rod 52 moves downward. The ejection plate 53 contacts each ejection rod, and the edge ejection rod 55 and the center ejection rod 54 are pushed downward. The extrusion head 542 on the ejector rod 54 presses the return spring 541. After the return spring 541 is deformed by the extrusion, the central ejector rod 54 moves downward a certain distance, and the central ejector rod 54 moves out of the upper mold 2 (specifically, the plum blossom core 24 in the upper mold 2). The bottom end of the central ejector rod 54 will push out the semi-finished structure (flower piece) at the position of the plum blossom core 24 in the mold cavity of the upper mold 2; the ejector plate 53 is then reset to its original position by the return spring 541; while the central ejector rod 54 moves downward, the edge ejector rod 55 also moves downward synchronously, and the stripper plate 56 at the bottom end of the edge ejector rod 55 moves downward out of the lower surface of the upper mold 2. The stripper plate 56 pushes out the outer edge area of ​​the semi-finished product (stator finished product); such as Figure 14 As shown, the length of the center ejector rod 54 is less than the length of the edge ejector rod 55. Based on this design, a cavity can be prefabricated in the ejector plate 53 for the edge ejector rod 55 to extend into, so that the edge ejector rod 55 and the center ejector rod 54 are displaced by the ejector plate 53 by the same distance.

[0037] When the punch press slide 102 moves downward, the linkage rod 82 is driven downward, and the non-right-angle point 89 in the right-angle piece 83 moves downward. At this time, the right-angle piece 83 tilts with the right-angle point 88 as the base point. The first support rod 84 and the second support rod 85 are driven away from the punch press slide 102, and the punch press receiving hand 86 moves outward, that is, moves out of the space between the upper die 2 and the lower die 3. At this time, the included angle between the first support rod 84 and the second support rod 85 changes, and the included angle between the second support rod 85 and the punch press receiving hand 86 hinge changes. When the punch press slide 102 performs the next upward movement, the semi-finished product slides and falls to the punch press receiving hand. On the conveyor table 87 below the hand 86, the semi-finished product is then transferred to the first separation rail 91. Since there is a gap between the first separation rails 91, and this gap is larger than the size of the flower piece, the stator finished product slides along the surface of the first separation rail 91 to the first collection area 92 for collection. The flower piece falls to the second separation rail 93 below the first separation rail 91. Then the flower piece slides along the inclined smooth slope of the second separation rail 93 and accumulates in the second collection area 94 at the bottom end of the second separation rail 93. A limiting plate can be set in the bottom area of ​​the second separation rail 93 to form the second collection area 94.

[0038] When the punch press slide 102 completes one punching action and is preparing for the next downward punching action, the displacement of the oscillating feeder 7 will synchronously change the position of the raw material relative to the lower die 3. Taking the lateral position of the punching raw material area as enough for two punchings as an example, after the first downward punching, when preparing for the second downward punching, the oscillating feeder 7 controls the lateral displacement of the punching raw material, so that the punching position changes; when preparing for the third downward punching, the oscillating feeder 7 uses the second servo motor in conjunction with the conveyor roller 72 to convey the raw material forward; when preparing for the fourth downward punching, the conveyor table 71 in the oscillating feeder 7 uses the first servo motor to drive the ball screw to perform a reverse lateral displacement, and so on, repeating the punching action.

[0039] Example 2 This embodiment provides a die control method for a motor stator oscillating punch die. This embodiment corresponds to the structure of the motor stator oscillating punch die in Embodiment 1, and includes the following steps: S1: Set the punching speed v according to the specifications of the motor stator lamination to be processed. The range of punching speed v is 50-200mm / s. S2: Raw material positioning, place the raw material into the oscillating feeder 7 and place it above the upper die 31 of the lower die 3; S3: Start the punching drive assembly 1, so that the punch slide 102 punches downward along the predetermined trajectory, and the punch 21 and the die 31 cooperate to punch the blank; S4: When the punch press slide 102 returns upward, the oscillating feeder 7 controls the raw material to move laterally in the first direction by a set distance. At the same time, the connecting rod receiving and conveying mechanism 8 moves between the upper die 2 and the lower die 3 to receive the material. While the punch press slide 102 performs the next downward punching action, the connecting rod receiving and conveying mechanism 8 moves out from between the upper die 2 and the lower die 3. After completing this downward punching action, the oscillating feeder 7 controls the raw material to be conveyed forward to re-execute the punching action. S5: After completing the punching action in step S4, the oscillating feeder 7 controls the raw material to move laterally in the second direction by a set distance, wherein the first direction is opposite to the second direction. Steps S4 and S5 are repeated continuously to achieve mass production of motor stator laminations.

[0040] Example 3 like Figures 1 to 15 As shown, this embodiment provides a motor stator swing punch die. The structural difference between this embodiment and Embodiment 1 is as follows: The motor stator swing punch die in this embodiment also includes the following structures: an electromagnetic adsorption module 10, a telescopic drive module 11, and a waste collection box. The electromagnetic adsorption module 10 is used to adsorb iron filings in the lower die cavity 3 of the motor stator swing punch die. The electromagnetic adsorption module 10 includes an electromagnetic disk 104, a mounting base 105, and a magnetic shielding plate 106. The electromagnetic disk 104 is installed at the bottom of the mounting base 105, and the magnetic shielding plate 106 is disposed between the electromagnetic disk 104 and the mounting base 105. The telescopic drive module 11 is used to drive the electromagnetic adsorption module 10 to complete reciprocating motion. It includes a third servo motor 111, a second ball screw 112, and a telescopic arm 113. The third servo motor 111 is connected to the second ball screw 112 in a transmission connection. One end of the telescopic arm 113 is fixedly connected to the electromagnetic disk 104, and the other end is rigidly connected to the nut seat of the second ball screw 112. The waste collection box is located below the release position of the electromagnetic disk 104. A guide funnel is installed on the top of the waste collection box, and a liquid level sensor for detecting the height of iron filings accumulation is installed on its side. When the liquid level sensor triggers the threshold, an alarm signal is automatically issued through the alarm.

[0041] In this embodiment, the electromagnetic disk 104 serves as the actuator for adsorbing iron filings. Its principle is that a stable magnetic field is generated when energized, and the dispersed punching iron filings are quickly adsorbed through the magnetic field force. When the power is off, the magnetic field disappears instantly, achieving rapid release of the iron filings and ensuring efficient and cleanliness of the cleaning process. In specific applications, the punching drive assembly 1 can be controlled by a control system. The control system can use a PLC as its core, and can work with sensors to collect punch movement position signals and motor stator feeding status signals, and control the actions of the telescopic drive module 11 and the electromagnetic adsorption module 10.

[0042] Regarding the structural details of the electromagnetic disk 104: A flat circular structure can be adopted. The disk surface must be precisely fitted with the cleaning position of the lower mold cavity. The diameter of the disk surface is designed to be adapted to the size of the lower mold cavity, usually 5-8mm smaller than the inner diameter of the cavity, to avoid interference with the inner wall of the cavity. Multiple magnetic circuit grooves are evenly distributed on the disk surface to enhance the concentration of the magnetic field and improve the ability to attract fine iron filings. The disk integrates coil windings, and the winding leads are connected to the control system through waterproof and wear-resistant sleeves, which is suitable for the oil and dust conditions of the mold working environment.

[0043] The disk body (iron core) is made of DT4 pure iron, which has extremely high permeability and extremely low coercivity, enabling it to respond quickly to electromagnetic signals and achieve rapid establishment and disappearance of the magnetic field. The coil winding is made of copper enameled wire with a temperature resistance of ≥155℃ to avoid damage to the coil due to long-term power-on heating. The disk shell is made of 304 stainless steel, which has rust-proof, wear-resistant and oil-proof properties, protecting the internal coil from the oil and iron filings in the mold working environment.

[0044] The magnetic shielding plate 106 is disposed between the electromagnetic disk 104 and the mounting base 105. Its core function is to block the magnetic field generated by the electromagnetic disk 104 from being conducted to the mounting base 105 and the telescopic drive module 11, so as to avoid magnetic interference to metal components such as the servo motor and ensure the operating accuracy of the telescopic drive module 11. At the same time, it plays a buffering and shock absorption role, reducing the vibration of the electromagnetic disk 104 during operation from being transmitted to the mounting base 105, and improving the overall stability of the module. It adopts a flat plate structure that matches the size of the electromagnetic disk 104 and the mounting base 105, and the thickness is designed to be 5-8mm, ensuring the magnetic shielding effect while ensuring structural strength. In terms of material, non-magnetic stainless steel (such as 316L) is selected. This material has extremely low magnetic permeability, which can effectively block the conduction of magnetic field, and has excellent corrosion resistance, wear resistance and mechanical strength.

[0045] Automated metal chip cleaning reduces the grinding and wear of metal chips on the die cutting edge, thus reducing the frequency of die maintenance and replacement costs; the rolling fit of guide sleeve 602 and guide post 603 reduces frictional loss during die base movement, further extending the overall service life of the die.

[0046] The PLC control system can also be integrated with other equipment on the production line, improving the overall level of automation and flexibility of production.

[0047] The above structure can clean iron filings inside the mold in a timely manner, and the cleaning action is achieved in conjunction with the blanking action, thereby avoiding some equipment failures caused by iron filings.

[0048] It should be noted that when setting up the electromagnetic adsorption module 10 and the telescopic drive module 11, care should be taken to avoid interference with moving parts such as the punch and die 31. Preferably, the disk is installed on the side of the lower die 3, and a telescopic arm 113 structure is designed to extend into the die cavity during the upward return stroke of the punch to adsorb scattered iron filings. When the control stroke of the corresponding ball screw is sufficient, the telescopic arm 113 is a simple frame structure; when the control stroke of the ball screw is insufficient, the telescopic arm 113 is a cylinder structure. Of course, other mechanical structures that achieve the same technical effect can also be used, depending on the installation position and control stroke of the electromagnetic adsorption module 10 and the telescopic drive module 11.

[0049] To improve cleaning performance, the disk shape and structure can be designed as a three-groove lower mold, and the depth and size of the disk structure can be flexibly set according to requirements.

[0050] Punching principle: When the punch 21 moves down with the upper die 2, the punching cutting edge 22 on its end face fits precisely with the die 31 on the lower die 3, punching the raw material placed between the two to complete the forming of a specific structure of the stator. If iron filings are generated during the punching process, they will scatter in the lower die 3 cavity and the surrounding area of ​​the die 31. The control system (with PLC as the core) collects the punch movement position signal and the motor stator feeding status signal in real time. When the punch is detected to have completed one punching and returned upward, the control system immediately issues a command to start the telescopic drive module 11. The third servo motor 111 drives the second ball screw 112 to rotate, which drives the nut seat to extend the telescopic arm 113. The electromagnetic adsorption module 10 fixed at the end of the telescopic arm 113 is sent into the designated area of ​​the lower die 3 cavity. Then the electromagnetic disk 104 is energized to generate magnetic force. The magnetic force is focused by the magnetic shielding plate 106 to accurately adsorb the iron filings in the cavity. After the adsorption is completed, the control system commands the third servo motor 111 to rotate in reverse. The second ball screw 112 and the telescopic arm 113 drive the electromagnetic adsorption module 10 to exit the lower die 3 cavity. After reaching the designated cleaning area, the electromagnetic disk 104 is de-energized, the iron filings fall off and are collected, and one iron filings cleaning cycle is completed. After cleaning, the mold returns to its initial positioning state, awaiting the next cleaning.

[0051] Furthermore, an adjustable platform is installed at the bottom of the telescopic drive module 11, the height of which is adjusted by a cylinder, facilitating indirect control of the height position of the electromagnetic adsorption module 10. This adjustable platform can be a multi-axis platform, meaning it can be adjusted in multiple directions.

[0052] Example 4 This embodiment provides a die control method for a motor stator oscillating punch die. This embodiment corresponds to the structure of the motor stator oscillating punch die in Embodiment 3, and includes the following steps: S1: Set the punching speed v according to the specifications of the motor stator lamination to be processed. The range of punching speed v is 50-200mm / s. S2: Raw material positioning, place the raw material into the oscillating feeder 7 and place it above the upper die 31 of the lower die 3; S3: Start the punching drive assembly 1, so that the punch slide 102 punches downward along the predetermined trajectory, and the punch 21 and the die 31 cooperate to punch the blank; S4: When the punch press slide 102 returns upward, the oscillating feeder 7 controls the raw material to move laterally in the first direction by a set distance. At the same time, the connecting rod receiving and conveying mechanism 8 moves between the upper die 2 and the lower die 3 to receive the material. While the punch press slide 102 performs the next downward punching action, the connecting rod receiving and conveying mechanism 8 moves out from between the upper die 2 and the lower die 3. After completing this downward punching action, the oscillating feeder 7 controls the raw material to be conveyed forward to re-execute the punching action. S5: After completing the punching action in step S4, the oscillating feeder 7 controls the raw material to move laterally in the second direction by a set distance, wherein the first direction is opposite to the second direction. Steps S4 and S5 are repeated continuously to achieve mass production of motor stator laminations. S6: When iron filings need to be cleaned, the cleaning mode is activated. After the punching action is completed, the punch slide 102 drives the upper die 2 to reset upwards. When the punch moves to a safe height of ≥20mm from the surface of the lower die 3, the position sensor installed on the punch slide 102 triggers the iron filings cleaning signal. The telescopic drive module 11 drives the electromagnetic disk 104 to extend into the cleaning position of the lower die 3 cavity. After being powered on and adsorbing iron filings for 0.2-0.3s, the disk is moved to the collection position and the power is cut off to release the iron filings. Then the disk is reset to the standby position.

[0053] Therefore, the above detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

Claims

1. A motor stator oscillating punch die, characterized in that, It includes a blanking drive assembly, a linkage receiving and conveying mechanism, a magnetic mechanism, a rigid feeding mechanism, a swing feeder, an upper die, a lower die, and a guide and positioning assembly; The blanking drive assembly includes a main servo motor, a flywheel, a crankshaft, a connecting rod, a punch press frame, and a punch press slide. The flywheel is installed at the output end of the main servo motor, and the crankshaft is hinged to the flywheel. The top end of the connecting rod is hinged to the eccentric journal of the crankshaft, and the bottom end of the connecting rod is hinged to the punch press slide. The punch press frame is provided with a sliding groove adapted to the punch press slide. Adjustable height limit blocks are installed on both sides of the punch press frame and the punch press slide. The linkage material receiving and conveying mechanism includes a base frame, a linkage rod, a right-angle member, a first support rod, a second support rod, a punch press receiving hand, and a conveying table. The right-angle point of the right-angle member is hinged to the base frame, the non-right-angle point of the right-angle member is hinged to one end of the linkage rod, the other end of the linkage rod is hinged to the punch press slider, the other non-right-angle point of the right-angle member is connected to the first support rod, the first support rod is hinged to the second support rod, the second support rod is hinged to the punch press receiving hand, and the punch press receiving hand slides above the conveying table via a linear guide rail. The upper die is installed at the bottom of the punch press slide, and the lower die is installed below the upper die. The guide positioning component includes a buffer spring and the guide positioning component is symmetrically distributed at the corners of each die holder. The upper die is provided with a punch and the lower die is provided with a die. The end face of the punch is provided with a punching cutting edge. The punch and the die cooperate to complete the punching of the raw material. The rigid feeding mechanism includes a crossbar, a push rod, a feeding plate, a center feeding rod, an edge feeding rod, and a stripper plate. A vertically movable crossbar is installed inside the punch press slide. The punch press slide has a through-hole, and a push rod is slidably installed within the center hole. The bottom end of the crossbar is connected to the push rod, and the bottom end of the push rod is connected to the feeding plate. An edge feeding rod is provided on the outer edge region of the bottom end of the feeding plate, and a center feeding rod is provided in the central region of the bottom end of the feeding plate. The bottom ends of the edge feeding rods are connected to the stripper plate. The upper mold has a through hole for the central ejector rod and stripper plate to pass through and extend out of the bottom surface of the upper mold. A return spring is provided at the top of the central ejector rod. When the punch press slide returns upward, when it is about to reach the upper limit point, the crossbar hits the upper limit block before the punch press slide. The punch press slide continues to move upward, and the crossbar is restricted to move in the opposite direction to the punch press slide. Through the displacement of the push rod connected to the bottom of the crossbar, the central ejector rod and stripper plate are finally moved out of the lower surface of the upper mold, and the semi-finished product is separated from the mold cavity in the upper mold. The magnetic mechanism is installed on the upper die. The punching drive assembly controls the upward movement of the punch press slide and the upper die. The magnetic mechanism magnetically attracts the semi-finished product after punching and moves it upward synchronously. The punch press slide is linked with the connecting rod receiving and conveying mechanism to control the punch press receiving hand to move between the upper and lower dies. The semi-finished product is transferred to the punch press receiving hand through the rigid feeding mechanism in the upper die. The punch press receiving hand moves out between the upper and lower dies. The displacement of the oscillating feeder synchronously changes the position of the raw material relative to the lower die. The punching drive assembly executes the next punching action.

2. The motor stator swing punch die according to claim 1, characterized in that, The upper mold is equipped with a plum blossom core, the central ejector rod extends through the plum blossom core to eject material, the stripper plate is installed around the plum blossom core, the top of the central ejector rod is equipped with an extrusion head, and the bottom of the extrusion head is nested with a reset spring.

3. The motor stator swing punch die according to claim 2, characterized in that, The magnetic mechanism includes a number of magnets, which are distributed circumferentially on the core.

4. The motor stator swing punch die according to claim 3, characterized in that, The oscillating feeder includes a conveyor platform, a first ball screw, a first servo motor, a conveying roller, and a second servo motor. The conveyor platform is driven by the first servo motor to move the ball screw laterally, and the second servo motor, in conjunction with the conveying roller, conveys the raw material forward on the conveyor platform.

5. The motor stator swing punch die according to claim 4, characterized in that, It also includes a sheet separation and sorting mechanism, which includes a first separation rail, a first collection area, a second separation rail, and a second collection area. The punch press receiving hand transfers the semi-finished products punched from the raw materials. The semi-finished products include stator finished products and decorative strips. The first separation rail has a hollow structure in the middle, and the width of the hollow structure is greater than the width of the decorative strip. A second separation rail is installed below the first separation rail. The stator finished products are transferred to the first collection area for collection, and the decorative strips are transferred to the second collection area for collection.

6. The motor stator swing punch die according to claim 5, characterized in that, The guiding and positioning assembly includes a guide sleeve and a guide post. The guide sleeve is fixed to the upper mold, and the guide post is fixed to the lower mold. The guide sleeve and the guide post are in rolling engagement, and the buffer spring is installed on the guide post.

7. The motor stator oscillating punch die according to claim 6, characterized in that, It also includes an electromagnetic adsorption module and a telescopic drive module. The electromagnetic adsorption module is used to adsorb iron filings in the lower cavity of the motor stator swing punch. The electromagnetic adsorption module includes an electromagnetic disk, a mounting base and a magnetic shielding plate. The electromagnetic disk is installed at the bottom of the mounting base and the magnetic shielding plate is disposed between the electromagnetic disk and the mounting base. The telescopic drive module is used to drive the electromagnetic adsorption module to complete reciprocating motion. It includes a third servo motor, a second ball screw, and a telescopic arm. The third servo motor is connected to the second ball screw via a transmission. One end of the telescopic arm is fixedly connected to the electromagnetic disk, and the other end is rigidly connected to the nut seat of the second ball screw.

8. The motor stator swing punch die according to claim 7, characterized in that, It also includes a waste collection box, which is located below the electromagnetic disk release position. A guide funnel is provided on the top of the waste collection box, and a liquid level sensor for detecting the height of iron filings accumulation is installed on its side. When the liquid level sensor triggers a threshold, an alarm signal is automatically issued by an alarm device.

9. A die control method based on the motor stator oscillating die according to any one of claims 1-6, characterized in that, Includes the following steps: S1: Set the punching speed v according to the specifications of the motor stator lamination to be processed. The range of punching speed v is 50-200mm / s. S2: Raw material positioning, placing the raw material into the oscillating feeder and positioning it above the upper die of the lower mold; S3: Start the punching drive assembly so that the punch slide punches downward along the predetermined trajectory, and the punch and die cooperate to punch the blank; S4: When the punch press slide returns upward, the oscillating feeder controls the material to move laterally in the first direction by a set distance. At the same time, the connecting rod receiving and conveying mechanism moves between the upper and lower dies to receive the material. While the punch press slide performs the next downward punching action, the connecting rod receiving and conveying mechanism moves out from between the upper and lower dies. After completing this downward punching action, the oscillating feeder controls the material to be conveyed forward to re-execute the punching action. S5: After completing the punching action in step S4, the oscillating feeder controls the raw material to move laterally in the second direction by a set distance, wherein the first direction is opposite to the second direction. Steps S4 and S5 are repeated continuously to achieve mass production of motor stator laminations.

10. A die control method based on the motor stator oscillating die of claim 8, characterized in that, Includes the following steps: S1: Set the punching speed v according to the specifications of the motor stator lamination to be processed. The range of punching speed v is 50-200mm / s. S2: Raw material positioning, placing the raw material into the oscillating feeder and positioning it above the upper die of the lower mold; S3: Start the punching drive assembly so that the punch slide punches downward along the predetermined trajectory, and the punch and die cooperate to punch the blank; S4: When the punch press slide returns upward, the oscillating feeder controls the material to move laterally in the first direction by a set distance. At the same time, the connecting rod receiving and conveying mechanism moves between the upper and lower dies to receive the material. While the punch press slide performs the next downward punching action, the connecting rod receiving and conveying mechanism moves out from between the upper and lower dies. After completing this downward punching action, the oscillating feeder controls the material to be conveyed forward to re-execute the punching action. S5: After completing the punching action in step S4, the oscillating feeder controls the raw material to move laterally in the second direction by a set distance, wherein the first direction is opposite to the second direction. Steps S4 and S5 are repeated continuously to achieve mass production of motor stator laminations. S6: When iron filings need to be cleaned, the cleaning mode is activated. After the punching action is completed, the punch press slide drives the upper die to reset upward. When the punch moves to a safe height of ≥20mm from the surface of the lower die, the position sensor installed on the punch press slide triggers the iron filings cleaning signal. The telescopic drive module drives the electromagnetic disk to extend into the cleaning position of the lower die cavity. After being powered on and adsorbing iron filings for 0.2-0.3s, the disk is moved to the collection position and the power is cut off to release the iron filings. Then the disk resets to the standby position.

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