Automatic processing and forming method for motor stator core

Abstract

The invention relates to the technical field of stator core production, in particular to a motor stator core automatic processing and forming method, which comprises a first punching mechanism, a second punching mechanism, a first feeding mechanism, a second feeding mechanism, a lamination conveying mechanism, an assembling jig, a welding mechanism and a discharging mechanism, the first punching mechanism is used for punching a first stator iron sheet, the second punching mechanism is used for punching a second stator iron sheet, the first feeding mechanism is used for grabbing a first stator iron sheet punched by the first punching mechanism and placing the first stator iron sheet on the assembling jig to be assembled into a first stator iron ring, and the second feeding mechanism is used for grabbing the second stator iron sheet punched by the second punching mechanism and placing the second stator iron sheet on the assembling jig to be assembled into a second stator iron ring. And stacking the first stator iron rings placed on the assembling jig to form a second stator iron ring. By means of a series of automatic and precise processing steps, efficient, precise and stable production of the stator iron core is achieved. According to the method, the production efficiency is improved, the production cost is reduced, and the quality and reliability of products are remarkably improved.

Description

Technical Field

[0001] The invention relates to the technical field of stator core production, and in particular to an automatic processing and forming method for a motor stator core. Background Art

[0002] The basic requirements of the stator core are good magnetic conductivity and low loss. It is composed of punching sheets and various fasteners. Common components include fan-shaped sheets, ventilation slot sheets, positioning ribs, upper and lower tooth pressure plates, tension bolts and support plates. The stator core is punched into fan-shaped sheets with silicon steel sheets and stacked on the positioning ribs. The positioning ribs are welded to the ring plate of the machine base through the support plate, and the core is compressed into a whole through the upper and lower tooth pressure plates with tension bolts. The production process of the motor stator core involves multiple processes, among which laser welding technology has been widely used in the stacking forming link due to its high quality and low cost. Stacking forming is to process silicon steel sheets into individual stator punching sheets through cutting, stamping and other processes, stack them layer by layer, pressurize and tighten them layer by layer, and then use welding technology to weld the surface layers of each silicon steel sheet to each other at the reserved weld to form a stator as a whole.

[0003] In the existing motor stator core production process, due to the stator core itself, the structural stability is poor, and the efficiency is low during the production process, which affects the product quality. Therefore, it is necessary to make new improvements to the existing motor stator core production and structure. Summary of the invention

[0004] To solve the above problems, the present invention realizes efficient, accurate and stable production of stator cores through a series of automated and precise processing steps. This method not only improves production efficiency and reduces production costs, but also significantly improves product quality and reliability.

[0005] The technical solution adopted by the present invention is: a method for automatically processing and forming a motor stator core, wherein the stator core is formed by stacking a plurality of first stator iron rings and a plurality of second stator iron rings in sequence; the first stator iron ring is formed by circumferentially connecting a plurality of first stator iron sheets, and the second stator iron ring is formed by circumferentially connecting a plurality of second stator iron sheets; the first stator iron sheet comprises a first yoke, a first tooth portion and a first pole shoe, a first connecting groove and a first connecting boss are arranged on both sides of the first yoke, and two adjacent first stator iron sheets are spliced ​​by the first connecting groove and the first connecting boss, the first yoke is arc-shaped, the first tooth portion is connected to one side of the first yoke, and the angle between the axial tangent of the first tooth portion and the axial tangent of the first yoke is 10°; the second stator iron sheet comprises a second yoke, a second tooth portion and a second pole shoe, a second connecting groove and a second connecting boss are arranged on both sides of the second yoke, and the first yoke is connected to the first yoke. Two adjacent second stator iron sheets are spliced ​​by a second connecting groove and a second connecting boss, the second yoke is arc-shaped, the second tooth portion is connected to one side of the second yoke, and the angle between the axial tangent of the second tooth portion and the axial tangent of the second yoke is 10°; the second yoke is arranged on two adjacent first yokes so that the second tooth portion corresponds to the first tooth portion; the first yoke is provided with three first positioning holes on the same diameter line as the first connecting groove and the first connecting boss, and the three first positioning holes are evenly distributed along the circumferential direction of the first yoke, the first tooth portion is provided with a second positioning hole, and the second positioning hole is on a coaxial tangent with the adjacent first positioning hole; the second yoke is provided with three third positioning holes on the same diameter line as the second connecting groove and the second connecting boss, and the three third positioning holes are evenly distributed along the circumferential direction of the second yoke, the second tooth portion is provided with a fourth positioning hole, and the fourth positioning hole is on a coaxial tangent with the adjacent third positioning hole; The automatic processing and forming method of the motor stator core is completed by automatic processing equipment, and the automatic processing equipment includes a first punching mechanism, a second punching mechanism, a first feeding mechanism, a second feeding mechanism, a stacking conveying mechanism, an assembly jig, a welding mechanism and a blanking mechanism, wherein the first punching mechanism is used to punch and form the first stator iron sheet, the second punching mechanism is used to punch and form the second stator iron sheet, the assembly jig is arranged on the stacking conveying mechanism, the stacking conveying mechanism is used to drive the assembly jig to circulate and transmit, the first feeding mechanism is used to grab the first stator iron sheet punched by the first punching mechanism, and place it on the assembly jig to assemble into a first stator iron ring, the second feeding mechanism is used to grab the second stator iron sheet punched on the second punching mechanism, and place it on the first stator iron ring on the assembly jig for stacking to form a second stator iron ring; the welding mechanism welds a plurality of first stator iron rings stacked on each other with the second stator iron ring to form a stator core, and the blanking mechanism is used to take out and blank the stator core assembled on the assembly jig; The method for automatically processing and forming a motor stator core comprises the following steps: Step S1, forming the stator iron sheet: the first punching mechanism punches the first stator iron sheet from the strip material by punching, and the second punching mechanism punches the second stator iron sheet from the strip material by punching; Step S2, conveying and vibrating the stator iron sheet: after the first punching mechanism punches the first stator iron sheet into shape, the sheet-shaped first stator iron sheet is vibrated and conveyed toward the first feeding mechanism; at the same time, after the second punching mechanism punches the second stator iron sheet into shape, the sheet-shaped second stator iron sheet is vibrated and conveyed toward the second feeding mechanism; Step S3, assembling the first stator iron ring: the first feeding mechanism grabs the first stator iron sheet, and after grabbing, the first stator iron sheet is placed on the assembly jig, and 12 first stator iron sheets are assembled in sequence for circumferential combination. After assembling one each time, the assembly jig is rotated 30°, and the next one is assembled, until 12 assemblies are completed to form the first stator iron ring; Step S4, assembling the second stator iron ring: the second feeding mechanism grabs the second stator iron sheet, and after grabbing, the second stator iron sheet is transferred to the top of the assembly jig, and the assembly jig is rotated 15° so that the third positioning hole corresponds to the first positioning holes of the two adjacent first stator iron sheets, and the second positioning hole corresponds to the fourth positioning hole; so that the first tooth portion is flush with the second tooth portion; then 12 second stator iron sheets are assembled in sequence for circumferential combination, and after each assembly, the assembly jig is rotated 30°, and the next one is assembled, until 12 assemblies are completed to form a second stator iron ring; Step S5, repeating steps S3 to S4 for multiple times to laminate the first stator iron ring and the second stator iron ring in multiple layers to form a stator core; Step S6, stator core welding: after the stator core is stacked, the stack conveying mechanism transports the assembly jig to the welding mechanism, and the welding mechanism welds the outer side of the stator core so that the first stator iron ring is fixedly connected to the second stator iron ring; Step S7, blanking of the stator core: after welding and fixing, the stator core is picked up and blanked from the assembly jig by a blanking mechanism.

[0006] A further improvement to the above scheme is that one end of the first positioning hole, the second positioning hole, the third positioning hole and the fourth positioning hole are formed with a mating flange by stamping, and the mating flange is used for positioning and mating the adjacent first stator iron ring and the second stator iron ring.

[0007] A further improvement to the above scheme is that in step S4, the third positioning hole is positioned with the first positioning hole by means of a matching boss, and the fourth positioning hole is positioned with the second positioning hole by means of a matching boss.

[0008] A further improvement to the above scheme is that when the first stator iron ring and the second stator iron ring are stacked, the second magnetic yoke is positioned and matched with two adjacent first positioning holes through the third positioning hole, so that the first tooth portion is aligned with the second tooth portion and the second positioning hole is matched with the fourth positioning hole.

[0009] A further improvement to the above scheme is that the first punching mechanism includes a first material unwinding component, a first stamping component, a first stamping die, a first material receiving and conveying component, a first vibrating screen component and a first discharge tray; the first material unwinding component is used to discharge the material toward the first stamping die, the first stamping die is arranged on the first stamping component, the first stamping component is used to drive the first stamping die to punch the material into a first stator iron sheet, and drop it into the first material receiving and conveying component, the first material receiving and conveying component conveys the first stator iron sheet to the first vibrating screen component, the first vibrating screen component screens the direction of the first stator iron sheet by vibration, and the first discharge tray is used to place the first stator iron sheet with adjusted direction; the first loading mechanism is used to grab the first stator iron sheet on the first discharge tray.

[0010] A further improvement to the above scheme is that the second punching mechanism includes a second material unwinding component, a second stamping component, a second stamping die, a second material receiving and conveying component, a second vibrating screen component and a second discharge tray; the second material unwinding component is used to discharge the material toward the second stamping die, the second stamping die is arranged on the second stamping component, the second stamping component is used to drive the second stamping die to punch the material to form a second stator iron sheet, and drop it into the second material receiving and conveying component, the second material receiving and conveying component conveys the second stator iron sheet to the second vibrating screen component, the second vibrating screen component screens the direction of the second stator iron sheet by vibration, and the second discharge tray is used to place the second stator iron sheet with adjusted direction; the second loading mechanism is used to grab the second stator iron sheet on the second discharge tray.

[0011] A further improvement to the above scheme is that the first feeding mechanism includes a first material picking rack, a first detection module, a first material picking fixed rack, a first connecting rod driving module, a first rotating driving module and a first material picking element, the first detection module is arranged on the first material picking rack, the first detection module is a detection camera, and faces the first material discharge tray to provide the first connecting rod driving module and the first rotating driving module with the position and direction of the material to be picked up; the first material picking fixed rack is arranged at the top end of the first material picking rack, the first connecting rod driving module and the first rotating driving module are both arranged on the first material picking fixed rack, and the first connecting rod driving module is provided with multiple groups, multiple The first connecting rod driving module is arranged around the first rotating driving module, and the first connecting rod driving module includes a first connecting rod driving motor, a first movable connecting rod and a second movable connecting rod. The driving end of the first connecting rod driving motor is connected to the first movable connecting rod, one end of the second movable connecting rod is hinged to the first movable connecting rod, and the other end is connected to the first material picking element; the first rotating driving module includes a first rotating driving motor, a first rotating connecting rod and a first telescopic connecting rod. The first rotating driving motor is connected to the first rotating connecting rod, one end of the first telescopic connecting rod is movably connected to the first rotating connecting rod, and the other end is connected to the first material picking element with a universal joint.

[0012] A further improvement to the above scheme is that the second feeding mechanism includes a second material picking rack, a second detection module, a second material picking fixed rack, a second connecting rod driving module, a second rotating driving module and a second material picking element, the second detection module is arranged on the second material picking rack, the second detection module is a detection camera, and faces the second material discharge tray to provide the second connecting rod driving module and the second rotating driving module with the position and direction of material picking; the second material picking fixed rack is arranged at the top end of the second material picking rack, the second connecting rod driving module and the second rotating driving module are both arranged on the second material picking fixed rack, and the second connecting rod driving module is provided with multiple groups, multiple The second connecting rod driving module is arranged around the second rotating driving module, and the second connecting rod driving module includes a second connecting rod driving motor, a third movable connecting rod and a fourth movable connecting rod. The driving end of the second connecting rod driving motor is connected to the third movable connecting rod, one end of the second movable connecting rod is hinged to the second movable connecting rod, and the other end is connected to the second material picking element; the second rotating driving module includes a second rotating driving motor, a second rotating connecting rod and a second telescopic connecting rod. The second rotating driving motor is connected to the second rotating connecting rod, one end of the second telescopic connecting rod is movably connected to the second rotating connecting rod, and the other end is connected to the second material picking element with a universal joint.

[0013] A further improvement to the above scheme is that the stack conveying mechanism includes at least two groups of mutually connected conveying lines, and a positioning component is provided on the conveying line, and the positioning component is used to position the assembly jig on the conveying line.

[0014] A further improvement to the above scheme is that the assembly fixture is provided with an assembly drive module and an assembly disk, the assembly drive module is used to drive the assembly disk to rotate, the assembly disk is provided with an assembly groove, the assembly disk is provided with a welding groove located on the outside of the assembly groove, and one end of the welding groove is connected to the assembly groove; the first feeding mechanism is used to assemble the first stator iron sheet on the assembly groove, and after each assembly, the assembly drive module drives the assembly groove to rotate to the position of the next first stator iron sheet to discharge the material.

[0015] A further improvement to the above scheme is that the second feeding mechanism is used to assemble the second stator iron sheet on the first stator iron sheet of the assembly slot, and each time one is assembled, the assembly drive module drives the assembly slot to rotate to the position of the next second stator iron sheet to discharge the material.

[0016] A further improvement to the above scheme is that the welding mechanism includes a pressing module and a welding module, the pressing module is used to press and fix the stator core assembled on the assembly jig, the welding modules are provided with multiple groups, and the multiple groups of welding modules correspond to welding grooves, the welding modules include a welding adjustment module, a welding drive module and a welding head, the welding drive module is arranged on the welding drive module, the welding head is arranged on the welding drive module, and the welding drive module is used to drive the welding head to move toward the welding groove to weld the first stator iron ring to the second stator iron ring.

[0017] A further improvement to the above scheme is that the unloading mechanism includes an unloading robot and an unloading conveyor line, wherein the unloading robot is used to grab the welded stator core on the assembly jig and place it on the unloading conveyor line for unloading.

[0018] The beneficial effects of the present invention are: Compared with the existing stator core, the present invention constructs a compact and stable stator core by stacking a plurality of first stator iron rings and a plurality of second stator iron rings in sequence. This stacking structure not only enhances the mechanical strength of the stator core, but also helps to reduce electromagnetic leakage and improve the overall performance of the motor. At the same time, the stacking design makes the stator core easy to assemble and disassemble during the manufacturing process, and is convenient for maintenance and replacement. Secondly, the circumferential connection design of the first stator iron sheet and the second stator iron sheet ensures the continuity and consistency of the stator core in the circumferential direction. The splicing mode of the first connecting groove and the first connecting boss, and the second connecting groove and the second connecting boss not only simplifies the connection process of the stator iron sheet, but also improves the reliability and precision of the connection. This design helps to reduce the vibration and noise of the stator core during operation and improve the stability and durability of the motor. Furthermore, the special structural design of the first stator iron sheet and the second stator iron sheet, such as the arrangement of the first yoke, the first tooth portion and the first pole shoe and the second yoke, the second tooth portion and the second pole shoe, further optimizes the electromagnetic performance of the motor. In particular, the design that the angle between the axis tangent of the first tooth portion and the second tooth portion and the axis tangent of the yoke is 10° helps to improve the air gap magnetic flux distribution of the motor and improve the power density and efficiency of the motor. Finally, the layout mode in which the second yoke is arranged on two adjacent first yokes realizes the correspondence between the first tooth portion and the second tooth portion, thereby enhancing the electromagnetic coupling effect of the stator core. This design not only improves the output performance of the motor, but also enables the motor to have better dynamic response capability when the load changes.

[0019] The automatic processing equipment realizes the rapid and accurate stamping of the stator iron sheets by integrating the first punching mechanism and the second punching mechanism. The automation of this step greatly improves the production efficiency, reduces the reliance on manual operation, and ensures the consistency and stability of the stamping. Secondly, in the lamination and assembly process, the first feeding mechanism and the second feeding mechanism can accurately grab and place the stamped stator iron sheets on the assembly jig to form the first stator iron ring and the second stator iron ring. The cyclic transmission function of the lamination conveying mechanism further improves the continuous operation capacity of the production line and ensures the smoothness and efficiency of the lamination and assembly process. In addition, the welding mechanism adopts advanced welding technology, which can firmly weld the multiple first stator iron rings and the second stator iron rings stacked on each other to form a stator iron core with stable structure and reliable performance. The automation of this step not only improves the welding quality, but also significantly reduces the potential safety hazards caused by manual welding. The unloading mechanism is responsible for removing the assembled stator iron core from the assembly jig to prepare for the next round of production. The automation of this step also improves the overall efficiency of the production line and reduces the complexity and errors of manual operation. The present invention achieves a significant improvement in production efficiency, stable and reliable product quality, effective cost control and enhanced production flexibility through a highly automated and integrated design.

[0020] The method for automatically processing and forming the stator core of a motor, firstly, adopts a mode of parallel operation of a double punching mechanism in the stator iron sheet forming stage (step S1), which effectively improves the material utilization rate and production efficiency. The first punching mechanism and the second punching mechanism punch out the first stator iron sheet and the second stator iron sheet from the strip material respectively. This parallel processing method reduces the waiting time and makes the production process more compact and efficient. In the stator iron sheet conveying and vibrating screening stage (step S2), the stamped stator iron sheet is orderly conveyed to the corresponding feeding mechanism by the vibrating screening device, ensuring the smooth progress of the subsequent assembly process. The automated processing of this step not only reduces manual intervention, but also improves the accuracy and stability of the conveying. In the stator iron ring assembly stage (steps S3 and S4), the first feeding mechanism and the second feeding mechanism are responsible for the grasping and placement of the first stator iron sheet and the second stator iron sheet respectively. By accurately controlling the rotation angle of the assembly jig, the circumferential combination of the stator iron sheet is realized, forming the first stator iron ring and the second stator iron ring. This precise assembly method ensures the structural stability and electrical performance of the stator core. By repeating steps S3 to S4 for multiple times, the first stator iron ring and the second stator iron ring of multiple layers can be laminated to form the required stator core (step S5). This lamination method not only improves the strength and rigidity of the stator core, but also makes its electrical performance more superior. At the same time, the automated lamination process reduces the errors caused by manual operation and improves the consistency and reliability of the product. In the stator core welding stage (step S6), the welding mechanism welds the outer side of the stator core to ensure a firm connection between the first stator iron ring and the second stator iron ring. This welding method not only improves the overall strength of the stator core, but also avoids electrical failures caused by poor connection. At the same time, the automated welding process reduces the generation of welding deformation and defects, and improves the welding quality and durability of the product. Finally, after the welding and fixing are completed, the stator core is grabbed and unloaded from the assembly jig by the unloading mechanism (step S7). The automated processing of this step not only improves the production efficiency, but also ensures the safety and stability of the stator core during transportation and storage. Through a series of automated and precise processing steps, efficient, precise and stable production of the stator core is achieved. This method not only improves production efficiency and reduces production costs, but also significantly improves product quality and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the stator core of the present invention; Figure 2 for Figure 1 Schematic diagram of the structure of the stator core; Figure 3 for Figure 2 Explosion diagram of the stator core; Figure 4It is a schematic diagram of the stamping preparation process of the first stator iron sheet and the second stator iron sheet of the present invention; Figure 5 It is a structural schematic diagram of the automatic processing equipment of the present invention; Figure 6 for Figure 5 A schematic diagram of the structure of the first punching mechanism and the second punching mechanism of the automatic processing equipment; Figure 7 for Figure 5 A schematic diagram of the structure of the first punching mechanism and the second punching mechanism of the automatic processing equipment; Figure 8 for Figure 5 A schematic diagram of the structure of the first feeding mechanism and the second feeding mechanism of the automatic processing equipment; Fig. 9 for Figure 5 A schematic diagram of the structure of the first feeding mechanism and the second feeding mechanism of the automatic processing equipment; Fig.10 for Figure 5 A partial structural diagram of a first feeding mechanism and a second feeding mechanism of an automatic processing device; Fig.11 for Figure 5 A schematic diagram of the structure of the lamination conveying mechanism of the automatic processing equipment; Fig.12 for Fig.11 A is an enlarged schematic diagram; Fig.13 for Figure 5 A schematic diagram of the structure of the lamination conveying mechanism of the automatic processing equipment; Fig.14 for Figure 5 Structural diagram of the welding mechanism of the automatic processing equipment; Fig.15 The figure is a schematic flow chart of the method for automatically processing and forming the motor stator core of the present invention.

[0022] Description of reference numerals: stator core 10, first stator iron ring 1, first stator iron sheet 11, first magnetic yoke 111, first tooth portion 112, first pole shoe 113, first connecting groove 114, first connecting boss 115, first positioning hole 116, second positioning hole 117; The second stator iron ring 2, the second stator iron sheet 21, the second magnetic yoke 211, the second tooth portion 212, the second pole shoe 213, the second connecting groove 214, the second connecting boss 215, the third positioning hole 216, and the fourth positioning hole 217; A first punching mechanism 3, a first material unwinding assembly 31, a first punching assembly 32, a first punching die 33, a first material receiving and conveying assembly 34, a first vibrating screen assembly 35, and a first unwinding tray 36; A second punching mechanism 4, a second material unwinding assembly 41, a second punching assembly 42, a second punching die 43, a second material receiving and conveying assembly 44, a second vibrating screen assembly 45, and a second unwinding tray 46; The first feeding mechanism 5, the first material taking frame 51, the first detection module 52, the first material taking fixed frame 53, the first connecting rod driving module 54, the first connecting rod driving motor 541, the first movable connecting rod 543, the second movable connecting rod 544, the first rotating driving module 55, the first rotating driving motor 551, the first rotating connecting rod 552, the first telescopic connecting rod 553, and the first material taking element 56; The second feeding mechanism 6, the second material taking frame 61, the second detection module 62, the second material taking fixed frame 63, the second connecting rod driving module 64, the second connecting rod driving motor 641, the third movable connecting rod 642, the fourth movable connecting rod 643, the second rotating driving module 65, the second rotating driving motor 651, the second rotating connecting rod 652, the second telescopic connecting rod 653, and the second material taking element 66; Lamination conveying mechanism 7, conveying line 71, positioning assembly 72; Assembly jig 8, assembly drive module 81, assembly plate 82, welding slot 821, assembly slot 83; Welding mechanism 9, pressing module 91, pressing drive cylinder 911, pressing plate 912, welding module 92, welding adjustment module 921, welding drive module 922, welding head 923; Unloading mechanism 20 , unloading robot 201 , unloading conveyor line 202 . DETAILED DESCRIPTION

[0023] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0024] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. Figure 1~Figure 4As shown, in one embodiment of the present invention, a stator core 10 is formed by stacking a plurality of first stator iron rings 1 and a plurality of second stator iron rings 2 in sequence; the first stator iron ring 1 is formed by connecting a plurality of first stator iron sheets 11 in an annular direction, and the second stator iron ring 2 is formed by connecting a plurality of second stator iron sheets 21 in an annular direction; the first stator iron sheet 11 includes a first magnetic yoke 111, a first tooth portion 112 and a first pole shoe 113, and first connecting grooves 114 and first connecting bosses 115 are provided on both sides of the first magnetic yoke 111, and two adjacent first stator iron sheets 11 are spliced ​​with the first connecting grooves 114 and the first connecting bosses 115, the first magnetic yoke 111 is arc-shaped, the first tooth portion 112 is connected to one side of the first magnetic yoke 111, and the first tooth portion The angle between the axial tangent of the first magnetic yoke 112 and the axial tangent of the first magnetic yoke 111 is 10°; the second stator iron sheet 21 includes a second magnetic yoke 211, a second tooth portion 212 and a second pole shoe 213, and the second magnetic yoke 211 is provided with a second connecting groove 214 and a second connecting boss 215 on both sides, and the two adjacent second stator iron sheets 21 are spliced ​​by the second connecting groove 214 and the second connecting boss 215, the second magnetic yoke 211 is arc-shaped, and the second tooth portion 212 is connected to one side of the second magnetic yoke 211, and the angle between the axial tangent of the second tooth portion 212 and the axial tangent of the second magnetic yoke 211 is 10°; the second magnetic yoke 211 is arranged on two adjacent first magnetic yokes 111, so that the second tooth portion 212 corresponds to the first tooth portion 112. In this embodiment, a compact and stable stator core 10 is constructed by stacking a plurality of first stator iron rings 1 and a plurality of second stator iron rings 2 in sequence. This stacked structure not only enhances the mechanical strength of the stator core 10, but also helps to reduce electromagnetic leakage and improve the overall performance of the motor. At the same time, the stacked design makes the stator core 10 easy to assemble and disassemble during the manufacturing process, and is convenient for maintenance and replacement. Secondly, the circumferential connection design of the first stator iron sheet 11 and the second stator iron sheet 21 ensures the continuity and consistency of the stator core 10 in the circumferential direction. The splicing method of the first connecting groove 114 and the first connecting boss 115, and the second connecting groove 214 and the second connecting boss 215 not only simplifies the connection process of the stator iron sheet, but also improves the reliability and accuracy of the connection. This design helps to reduce the vibration and noise of the stator core 10 during operation and improve the stability and durability of the motor. Furthermore, the special structural design of the first stator iron sheet 11 and the second stator iron sheet 21, such as the arrangement of the first yoke 111, the first tooth portion 112 and the first pole shoe 113 and the second yoke 211, the second tooth portion 212 and the second pole shoe 213, further optimizes the electromagnetic performance of the motor. In particular, the design that the angle between the axial tangent of the first tooth portion 112 and the second tooth portion 212 and the axial tangent of the yoke is 10° helps to improve the air gap flux distribution of the motor and increase the power density and efficiency of the motor.Finally, the layout of the second yoke 211 disposed on two adjacent first yokes 111 realizes the correspondence between the first tooth portion 112 and the second tooth portion 212, thereby enhancing the electromagnetic coupling effect of the stator core 10. This design not only improves the output performance of the motor, but also enables the motor to have better dynamic response capability when the load changes.

[0026] The first yoke 111 is provided with three first positioning holes 116 on the same diameter as the first connecting groove 114 and the first connecting boss 115, and the three first positioning holes 116 are evenly distributed along the circumferential direction of the first yoke 111, and the first tooth portion 112 is provided with a second positioning hole 117, and the second positioning hole 117 is on a coaxial tangent with the adjacent first positioning hole 116; specifically, the second yoke 211 is provided with three third positioning holes 216 on the same diameter as the second connecting groove 214 and the second connecting boss 215, and the three third positioning holes 216 are evenly distributed along the circumferential direction of the second yoke 211, and the second tooth portion 212 is provided with a fourth positioning hole 217, and the fourth positioning hole 217 is on a coaxial tangent with the adjacent third positioning hole 216. In this embodiment, the design of the positioning holes greatly improves the assembly accuracy of the stator core 10. Since the positioning holes are evenly distributed in the circumferential direction of the yoke, they provide precise positioning and fixing points for various components of the stator core 10. This not only ensures that the relative positions of the various components are accurate, but also reduces the errors that may occur during the assembly process, thereby improving the manufacturing quality of the entire stator core 10. Secondly, the second positioning hole 117 and the fourth positioning hole 217 are arranged in a coaxial tangent with the adjacent first positioning hole 116 and the third positioning hole 216, which further optimizes the structural stability of the stator core 10. This design makes the connection between the various components more secure and can withstand greater mechanical stress and electromagnetic force. At the same time, it also enhances the heat dissipation performance of the stator core 10, because by optimizing the layout of the components, air flow can be more effectively used to dissipate heat. In addition, this design also simplifies the production process of the stator core 10. Since the positioning and connection between the various components become simpler and more direct, the complexity and cost of the production process can be reduced. At the same time, due to the uniform distribution of the positioning holes and the setting of the coaxial tangent, the production efficiency can also be improved, because automated and mechanized production can be more easily achieved.

[0027] One end of the first positioning hole 116, the second positioning hole 117, the third positioning hole 216 and the fourth positioning hole 217 are all formed with a matching flange by stamping, and the matching flange is used for positioning and matching the adjacent first stator iron ring 1 and the second stator iron ring 2. In this embodiment, the matching flange structure greatly improves the positioning accuracy between the stator iron rings. During the assembly process, the adjacent first stator iron ring 1 and the second stator iron ring 2 can be accurately docked through the matching flange, avoiding the deviation that may be caused by the traditional positioning method, thereby ensuring the overall structural stability and performance reliability of the stator core 10. Secondly, the use of the matching flange simplifies the production process. The flange is directly formed by stamping, which reduces the additional positioning and fixing steps and improves the production efficiency. At the same time, this integrated design also reduces the errors and defective rates that may occur during the production process, further improving the product quality.

[0028] When the first stator iron ring 1 is stacked with the second stator iron ring 2, the second yoke 211 is positioned and matched with the two adjacent first positioning holes 116 through the third positioning hole 216, so that the first tooth portion 112 is aligned with the second tooth portion 212, and the second positioning hole 117 is matched with the fourth positioning hole 217. In this embodiment, when the first stator iron ring 1 is stacked with the second stator iron ring 2, the third positioning hole 216 of the second yoke 211 is positioned and matched with the two adjacent first positioning holes 116 to ensure the stability and accuracy of the two during the assembly process. This design not only simplifies the assembly process, but also greatly improves production efficiency because it reduces rework and waste caused by inaccurate positioning. More importantly, the positioning mechanism ensures the precise alignment of the first tooth portion 112 with the second tooth portion 212. This is crucial to the electromagnetic performance of the stator core 10, because the alignment of the teeth directly affects the distribution and efficiency of the magnetic flux. Through precise alignment, the magnetic resistance can be minimized and the overall performance of the motor can be improved. In addition, the cooperation between the second positioning hole 117 and the fourth positioning hole 217 further enhances the stability of the structure. This design not only helps to prevent the stator iron ring from shifting or deforming during operation, but also improves the durability and reliability of the entire stator core 10.

[0029] See also Figure 5~Figure 14As shown, the brushless motor stator core 10 fully automatic production line includes a first punching mechanism 3, a second punching mechanism 4, a first feeding mechanism 5, a second feeding mechanism 6, a stacking conveying mechanism 7, an assembly jig 8, a welding mechanism 9 and a feeding mechanism 20, wherein the first punching mechanism 3 is used to punch the first stator iron sheet 11, the second punching mechanism 4 is used to punch the second stator iron sheet 21, the assembly jig 8 is arranged on the stacking conveying mechanism 7, the stacking conveying mechanism 7 is used to drive the assembly jig 8 to circulate, the first feeding mechanism 5 ... first feeding mechanism 5 is used to punch the first stator iron sheet 11, the second punching mechanism 4 is used to punch the second stator iron sheet 21, the assembly jig 8 is arranged on the stacking conveying mechanism 7, the first feeding mechanism 5 is used to punch the first stator iron sheet 11, the second punching mechanism 4 is used to punch the second stator iron sheet 21, the assembly jig 8 is arranged on the stacking conveying mechanism 7, the first feeding mechanism 5 is used to The first stator iron sheet 11 punched by the sheet mechanism 3 is grasped and placed on the assembly jig 8 to be assembled into the first stator iron ring 1. The second feeding mechanism 6 is used to grasp the second stator iron sheet 21 punched by the second punching mechanism 4 and place it on the first stator iron ring 1 on the assembly jig 8 for stacking to form the second stator iron ring 2; the welding mechanism 9 welds the multiple first stator iron rings 1 stacked on each other with the second stator iron ring 2 to form the stator core 10, and the unloading mechanism 20 is used to take out the stator core 10 assembled on the assembly jig 8. This embodiment realizes the rapid and precise stamping of the stator iron sheet by integrating the first punching mechanism 3 and the second punching mechanism 4. The automation of this step greatly improves the production efficiency, reduces the dependence on manual operation, and ensures the consistency and stability of the stamping. Secondly, in the lamination and assembly process, the first feeding mechanism 5 and the second feeding mechanism 6 can accurately grab and place the stamped stator iron sheet on the assembly jig 8 to form the first stator iron ring 1 and the second stator iron ring 2. The cyclic transmission function of the lamination conveying mechanism 7 further improves the continuous operation capacity of the production line and ensures the fluency and efficiency of the lamination and assembly process. In addition, the welding mechanism 9 adopts advanced welding technology to firmly weld the multiple first stator iron rings 1 and the second stator iron rings 2 stacked on each other to form a stator core 10 with stable structure and reliable performance. The automation of this step not only improves the welding quality, but also significantly reduces the potential safety hazards caused by manual welding. The unloading mechanism 20 is responsible for removing the assembled stator core 10 from the assembly jig 8 to prepare for the next round of production. The automation of this step also improves the overall efficiency of the production line and reduces the tediousness and errors of manual operation. The present invention achieves a significant improvement in production efficiency, stable and reliable product quality, effective cost control, and enhanced production flexibility through a highly automated and integrated design.

[0030] See also Figure 6~Figure 7As shown, the first punching mechanism 3 includes a first material unwinding component 31, a first stamping component 32, a first stamping die 33, a first material receiving and conveying component 34, a first vibrating screen component 35 and a first discharge tray 36; the first material unwinding component 31 is used to discharge the material toward the first stamping die 33, the first stamping die 33 is arranged on the first stamping component 32, the first stamping component 32 is used to drive the first stamping die 33 to stamp the material into a first stator iron sheet 11, and drop it into the first material receiving and conveying component 34, the first material receiving and conveying component 34 conveys the first stator iron sheet 11 to the first vibrating screen component 35, the first vibrating screen component 35 screens the direction of the first stator iron sheet 11 by vibration, and the first discharge tray 36 is used to place the first stator iron sheet 11 with the adjusted direction; the first loading mechanism 5 is used to grab the first stator iron sheet 11 on the first discharge tray 36; The second punching mechanism 4 includes a second material unwinding component 41, a second stamping component 42, a second stamping die 43, a second material receiving and conveying component 44, a second vibrating screen component 45 and a second discharge tray 46; the second material unwinding component 41 is used to discharge the material toward the second stamping die 43, the second stamping die 43 is arranged on the second stamping component 42, the second stamping component 42 is used to drive the second stamping die 43 to stamp the material into a second stator iron sheet 21, and drop it into the second material receiving and conveying component 44, the second material receiving and conveying component 44 conveys the second stator iron sheet 21 to the second vibrating screen component 45, the second vibrating screen component 45 screens the direction of the second stator iron sheet 21 by vibration, and the second discharge tray 46 is used to place the second stator iron sheet 21 with the adjusted direction; the second feeding mechanism 6 is used to grab the second stator iron sheet 21 on the second discharge tray 46. In this embodiment, first, the first punching mechanism 3 realizes the seamless connection of materials from unwinding to stamping and forming through its integrated first material unwinding component 31, first stamping component 32, first stamping die 33 and other core components. This process not only greatly shortens the production cycle, but also ensures the stability and consistency of the material during the stamping process, thereby effectively improving the molding quality of the first stator iron sheet 11. The coordinated use of the first material receiving conveying component 34 and the first vibrating screen component 35 further ensures the stability and direction accuracy of the stator iron sheet during the conveying process, laying a solid foundation for the subsequent assembly process. Similarly, the second punching mechanism 4 echoes the first punching mechanism 3 in structure and function, but is customized for different types of stator iron sheets. Through the precise discharge of the second material unwinding component 41 and the precise drive of the second stamping component 42, the second stamping die 43 can efficiently stamp the material into the second stator iron sheet 21. This process not only improves the flexibility of the production line, but also meets the production needs of diversified products. The synergistic effect of the second material receiving and conveying assembly 44 and the second vibrating screen assembly 45 further ensures the quality and efficiency of the second stator iron sheet 21 during the conveying and screening process.In addition, the design of the first discharge tray 36 and the second discharge tray 46 provides a convenient operating platform for adjusting the direction of the stator iron sheet. Combined with the precise grabbing function of the first feeding mechanism 5 and the second feeding mechanism 6, the seamless connection from production to feeding of the stator iron sheet is achieved, further improving the automation level and production efficiency of the production line.

[0031] See also Figure 8~Figure 10As shown, the first feeding mechanism 5 includes a first material picking frame 51, a first detection module 52, a first material picking fixed frame 53, a first connecting rod driving module 54, a first rotating driving module 55 and a first material picking element 56. The first detection module 52 is arranged on the first material picking frame 51. The first detection module 52 is a detection camera and faces the first material discharge tray 36 to provide the first connecting rod driving module 54 and the first rotating driving module 55 with the position and direction of the material to be picked; the first material picking fixed frame 53 is arranged at the top of the first material picking frame 51, the first connecting rod driving module 54 and the first rotating driving module 55 are both arranged on the first material picking fixed frame 53, and the first The connecting rod drive module 54 is provided with multiple groups, and the multiple groups of first connecting rod drive modules 54 are arranged around the first rotation drive module 55. The first connecting rod drive module 54 includes a first connecting rod drive motor 541, a first movable connecting rod 543 and a second movable connecting rod 544. The driving end of the first connecting rod drive motor 541 is connected to the first movable connecting rod 543, one end of the second movable connecting rod 544 is hinged to the first movable connecting rod 543, and the other end is connected to the first material picking element 56; the first rotation drive module 55 includes a first rotation drive motor 551, a first rotation connecting rod 552 and a first telescopic connecting rod 553. The first rotation drive motor 551 is connected to the first movable connecting rod 543, and the second movable connecting rod 544 is connected to the first material picking element 56. The first telescopic link 553 is connected with the first rotating link 552, one end of the first telescopic link 553 is movably connected with the first rotating link 552, and the other end is connected with the first material picking element 56 by a universal joint; specifically, the second feeding mechanism 6 includes a second material picking frame 61, a second detection module 62, a second material picking fixed frame 63, a second connecting rod driving module 64, a second rotating driving module 65 and a second material picking element 66, the second detection module 62 is arranged on the second material picking frame 61, the second detection module 62 is a detection camera, and faces the second discharge tray 46 to provide the second connecting rod driving module 64 and the second rotating driving module 65 with the position and direction of the material to be picked; the second The material picking fixed frame 63 is arranged at the top end of the second material picking frame 61, the second connecting rod driving module 64 and the second rotating driving module 65 are both arranged on the second material picking fixed frame 63, the second connecting rod driving module 64 is provided with multiple groups, and the multiple groups of second connecting rod driving modules 64 are arranged around the second rotating driving module 65, the second connecting rod driving module 64 includes a second connecting rod driving motor 641, a third movable connecting rod 642 and a fourth movable connecting rod 643, the driving end of the second connecting rod driving motor 641 is connected to the third movable connecting rod 642, one end of the second movable connecting rod 642 is hinged to the fourth movable connecting rod 643, and the other end is connected to the second material picking element 66;The second rotary drive module 65 includes a second rotary drive motor 651, a second rotary connecting rod 652 and a second telescopic connecting rod 653, wherein the second rotary drive motor 651 is connected to the second rotary connecting rod 652, one end of the second telescopic connecting rod 653 is movably connected to the second rotary connecting rod 652, and the other end is connected to the second material picking element 66 by a universal joint. In this embodiment, firstly, the first feeding mechanism 5 and the second feeding mechanism 6 are equipped with advanced detection modules, i.e., detection cameras. These cameras are respectively facing the first discharge tray 36 and the second discharge tray 46, and can accurately capture the position and direction information of the stator core 10 to be picked up. This function greatly reduces the error rate of manual positioning and improves the accuracy and efficiency of picking up. Through real-time feedback of image data, the system can quickly adjust the picking strategy to ensure that each picking up is accurate. Secondly, the combined use of the connecting rod drive module and the rotary drive module provides strong power support and flexible controllability for the picking process. In the first feeding mechanism 5 and the second feeding mechanism 6, the connecting rod driving module drives the movable connecting rod through the motor to realize the movement and positioning of the material picking element in the horizontal direction. The rotating driving module further adjusts the posture of the material picking element through the combination of the rotating connecting rod and the telescopic connecting rod to adapt to the stator core 10 of different shapes and sizes. This multi-degree-of-freedom, high-precision control method makes the material picking process more flexible and efficient. In addition, the first feeding mechanism 5 and the second feeding mechanism 6 both adopt a design in which multiple groups of connecting rod driving modules surround the rotating driving module. This layout not only optimizes space utilization, but also improves the stability and reliability of the material picking system. Through the coordinated work of multiple connecting rod driving modules, the system can easily cope with complex material picking tasks and ensure the continuity and stability of the production line. ;

[0032] See also Figure 11~Figure 13As shown, the lamination conveying mechanism 7 includes at least two groups of interconnected conveying lines 71, and the conveying line 71 is provided with a positioning assembly 72, and the positioning assembly 72 is used to position the assembly fixture 8 on the conveying line 71; specifically, the assembly fixture 8 is provided with an assembly drive module 81 and an assembly disk 82, and the assembly drive module 81 is used to drive the assembly disk 82 to rotate, and the assembly disk 82 is provided with an assembly groove 83, and the assembly disk 82 is located on the outside of the assembly groove 83 and is provided with a welding groove 821, and one end of the welding groove 821 is connected to the assembly groove 83; the first feeding mechanism 5 is used to assemble the first stator iron sheet 11 on the assembly groove 83, and each time one is assembled, the assembly drive module 81 drives the assembly groove 83 to rotate to the position of the next first stator iron sheet 11 to discharge. In this embodiment, through the design of at least two groups of interconnected conveying lines 71, the continuous and efficient transportation of the stator iron sheet is realized, ensuring the smooth progress of the production process. This design not only improves the overall production capacity of the production line, but also effectively reduces the material waiting time, so that the entire production cycle is shortened. Secondly, the setting of the positioning component 72 provides a strong guarantee for the precise positioning of the assembly jig 8 on the conveyor line 71. This innovative design ensures that each stator iron sheet can be accurately placed in the predetermined position during the assembly process, thereby avoiding production errors caused by inaccurate positioning. This not only improves the qualified rate of the product, but also reduces the additional cost caused by rework. Furthermore, the assembly drive module 81 and the assembly disk 82 integrated on the assembly jig 8 further improve the degree of automation. The assembly drive module 81 can drive the assembly disk 82 to rotate, so that the assembly slot 83 can reach different discharge positions in turn, thereby realizing the automatic assembly of the stator iron sheet. This design not only reduces the labor intensity of the workers, but also improves the assembly efficiency and ensures the consistency and stability of production. In addition, the connection design of the welding slot 821 and the assembly slot 83 set on the assembly disk 82 provides convenience for the subsequent welding process. After the stator iron sheet is assembled, the welding operation can be directly performed through the welding slot 821 without the need for additional handling or adjustment work. This design not only simplifies the production process, but also improves the overall flexibility of the production line.

[0033] The second feeding mechanism 6 is used to assemble the second stator iron sheet 21 on the first stator iron sheet 11 of the assembly slot 83, and each time after assembling one, the assembly drive module 81 drives the assembly slot 83 to rotate to the position of the next second stator iron sheet 21 to discharge. In this embodiment, the second feeding mechanism 6 can automatically and accurately place the second stator iron sheet 21 on the first stator iron sheet 11, and this process does not require manual intervention, which significantly improves the assembly speed. At the same time, after each assembly is completed, the assembly drive module 81 drives the assembly slot 83 to rotate to the next predetermined position to prepare for the next round of assembly. This assembly line operation method makes the entire production process smoother, reduces waiting time, and further improves overall production efficiency. Secondly, in terms of product quality, the precise coordination of the second feeding mechanism 6 and the assembly slot 83 ensures that each assembly can achieve the accuracy and stability required by the design. This high-precision assembly method not only improves the overall structural strength of the stator core 10, but also reduces the defective rate caused by improper assembly, thereby improving the overall quality of the product.

[0034] See also Fig.14As shown, the welding mechanism 9 includes a pressing module 91 and a welding module 92, wherein the pressing module 91 is used to press and fix the stator core 10 assembled on the assembly fixture 8, and the welding module 92 is provided with multiple groups, and the multiple groups of the welding modules 92 correspond to the welding groove 821, and the welding module 92 includes a welding adjustment module 921, a welding drive module 922 and a welding head 923, wherein the welding drive module 922 is arranged on the welding drive module 922, and the welding head 923 is arranged on the welding drive module 922, and the welding drive module 922 is used to drive the welding head 923 to move toward the welding groove 821, so as to weld and connect the first stator iron ring 1 and the second stator iron ring 2. In this embodiment, the pressing module 91 plays a vital role as a pretreatment link before welding. It can accurately and firmly press and fix the stator core 10 carefully assembled on the assembly jig 8, ensuring that the structure of the stator core 10 is stable and unchanged during the subsequent welding process, avoiding poor welding caused by looseness or dislocation. This step not only improves the qualified rate of the product, but also reduces the time wasted due to repeated adjustments, thereby speeding up the overall rhythm of the production line. The design of the welding module 92 embodies a high degree of professionalism and flexibility. The configuration of multiple groups of welding modules 92 enables the production line to handle multiple welding tasks at the same time, significantly improving production efficiency. Each group of welding modules 92 includes a welding adjustment module 921, a welding drive module 922 and a welding head 923. Such a structural design allows precise welding of welding slots 821 of different specifications and different positions, achieving a high degree of customization and automation. In particular, the application of the welding drive module 922 can smoothly and quickly guide the welding head 923 to move toward the welding slot 821 through precise drive control, ensuring that the welding process is both efficient and accurate. This technical feature not only ensures the welding quality between the first stator iron ring 1 and the second stator iron ring 2, but also reduces the material waste and cost increase caused by welding errors. In addition, the overall design of the welding mechanism 9 fully considers the continuity and stability of production, and achieves seamless connection from pressing to welding by optimizing the collaborative operation between the modules, further improving the overall efficiency of the production line. The pressing module 91 is provided with a pressing drive cylinder 911, and the pressing drive cylinder 911 is connected to a pressing plate 912, which is used to press and fix the stator core 10.

[0035] The unloading mechanism 20 includes an unloading manipulator 201 and an unloading conveyor line 202. The unloading manipulator 201 is used to grab the stator core 10 after welding on the assembly jig 8 and place it on the unloading conveyor line 202 for unloading. In this embodiment, the unloading manipulator 201 can accurately grab the stator core 10 that has been welded on the assembly jig 8 with its high precision and flexibility. This operation not only avoids the errors and damages that may be caused by manual operation, but also greatly improves production efficiency and ensures the stability and consistency of product quality. Secondly, the introduction of the unloading conveyor line 202 realizes the seamless connection of the stator core 10 from the welding station to the subsequent processing procedures. The conveyor line 71 is reasonably designed and runs smoothly, which can ensure that the stator core 10 is not disturbed by external forces during the transportation process, avoids damage caused by bumps or stagnation, and further guarantees product quality. In addition, the overall design of the unloading mechanism 20 fully considers the continuity and smoothness of the production line, effectively reducing the waiting time and resource waste in the production process. Through close cooperation with upstream welding equipment and downstream processing equipment, a fully automated process for the production of the stator core 10 is achieved, which significantly improves production efficiency and capacity.

[0036] See also Figure 1 to Figure 15 As shown, the method for automatically processing and forming the motor stator core includes the following steps: Step S1, forming the stator iron sheet: the first punching mechanism 3 punches the first stator iron sheet 11 from the strip material by punching, and the second punching mechanism 4 punches the second stator iron sheet 21 from the strip material by punching; Step S2, conveying and vibrating the stator iron sheet: after the first punching mechanism 3 punches and forms the first stator iron sheet 11, the sheet-shaped first stator iron sheet 11 is vibrated and conveyed toward the first feeding mechanism 5; at the same time, after the second punching mechanism 4 punches and forms the second stator iron sheet 21, the sheet-shaped second stator iron sheet 21 is vibrated and conveyed toward the first feeding mechanism 6; Step S3, assembling the first stator iron ring: the first feeding mechanism 5 grabs the first stator iron sheet 11, and after grabbing, the first stator iron sheet 11 is placed on the assembly jig, and 12 first stator iron sheets 11 are assembled in sequence for circumferential combination. After assembling one each time, the assembly jig is rotated 30°, and the next one is assembled, until 12 assemblies are completed to form the first stator iron ring; Step S4, assembling the second stator iron ring: the first feeding mechanism 6 grabs the second stator iron sheet 21, and after grabbing, the second stator iron sheet 21 is transferred to the top of the assembly jig, and the assembly jig is rotated 15° so that the third positioning hole 216 corresponds to the first positioning holes 116 of the two adjacent first stator iron sheets 11, and the second positioning hole 117 corresponds to the fourth positioning hole 217; so that the first tooth portion 112 is flush with the second tooth portion 212; then 12 second stator iron sheets 21 are assembled in sequence for circumferential combination, and after each assembly, the assembly jig is rotated 30°, and the next one is assembled, until 12 assemblies are completed to form a second stator iron ring; Step S5, repeating steps S3 to S4 for multiple times to laminate the first stator iron ring 1 and the second stator iron ring 2 in multiple layers to form a stator core 10; Step S6, welding of the stator core 10: after the stacking of the stator core 10 is completed, the stacking conveying mechanism 7 transports the assembly jig 8 to the welding mechanism 9, and the welding mechanism 9 welds the outer side of the stator core 10 so that the first stator iron ring 1 is fixedly connected to the second stator iron ring 2; Step S7 , blanking the stator core 10 : after welding and fixing, the stator core 10 is grabbed and blanked from the assembly jig 8 by the blanking mechanism 20 .

[0037] The method for automatically processing and forming the stator core 10 of the motor, firstly, adopts the mode of parallel operation of the double punching mechanism in the stator iron sheet forming stage (step S1), which effectively improves the material utilization rate and production efficiency. The first punching mechanism 3 and the second punching mechanism 4 punch out the first stator iron sheet 11 and the second stator iron sheet 21 from the strip material respectively. This parallel processing method reduces the waiting time and makes the production process more compact and efficient. In the stator iron sheet conveying and vibrating screening stage (step S2), the stamped stator iron sheet is orderly conveyed to the corresponding feeding mechanism by the vibrating screening device, ensuring the smooth progress of the subsequent assembly process. The automated processing of this step not only reduces manual intervention, but also improves the accuracy and stability of the conveying. In the stator iron ring assembly stage (steps S3 and S4), the first feeding mechanism 5 and the first feeding mechanism 6 are responsible for the grasping and placement of the first stator iron sheet 11 and the second stator iron sheet 21 respectively. By accurately controlling the rotation angle of the assembly fixture 8, the circumferential combination of the stator iron sheet is realized, and the first stator iron ring 1 and the second stator iron ring 2 are formed. This precise assembly method ensures the structural stability and electrical performance of the stator core 10. By repeating steps S3 to S4 multiple times, the first stator iron ring 1 and the second stator iron ring 2 can be laminated to form the desired stator core 10 (step S5). This lamination method not only improves the strength and rigidity of the stator core 10, but also makes its electrical performance more superior. At the same time, the automated lamination process reduces the errors caused by manual operation and improves the consistency and reliability of the product. In the welding stage of the stator core 10 (step S6), the welding mechanism 9 welds the outer side of the stator core 10 to ensure a firm connection between the first stator iron ring 1 and the second stator iron ring 2. This welding method not only improves the overall strength of the stator core 10, but also avoids electrical failures caused by poor connection. At the same time, the automated welding process reduces the generation of welding deformation and defects, and improves the welding quality and durability of the product. Finally, after the welding and fixing are completed, the stator core 10 is grabbed and unloaded from the assembly jig 8 by the unloading mechanism 20 (step S7). The automation of this step not only improves production efficiency, but also ensures the safety and stability of the stator core 10 during transportation and storage. In step S4, the third positioning hole is positioned with the first positioning hole through a matching boss, and the fourth positioning hole is positioned with the second positioning hole through a matching boss.

[0038] The above embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. A method for automatically processing and forming a motor stator core, characterized in that: The stator core is formed by stacking a plurality of first stator iron rings and a plurality of second stator iron rings in sequence; the first stator iron ring is formed by connecting a plurality of first stator iron sheets in an annular direction, and the second stator iron ring is formed by connecting a plurality of second stator iron sheets in an annular direction; the first stator iron sheet includes a first magnetic yoke, a first tooth portion and a first pole shoe, a first connecting groove and a first connecting boss are arranged on both sides of the first magnetic yoke, two adjacent first stator iron sheets are spliced ​​by the first connecting groove and the first connecting boss, the first magnetic yoke is arc-shaped, the first tooth portion is connected to one side of the first magnetic yoke, and the first tooth portion is The angle between the axial tangent and the axial tangent of the first magnetic yoke is 10°; the second stator iron sheet includes a second magnetic yoke, a second tooth portion and a second pole shoe, the second magnetic yoke is provided with a second connecting groove and a second connecting boss on both sides, and the two adjacent second stator iron sheets are spliced ​​by the second connecting groove and the second connecting boss, the second magnetic yoke is arc-shaped, the second tooth portion is connected to one side of the second magnetic yoke, and the angle between the axial tangent of the second tooth portion and the axial tangent of the second magnetic yoke is 10°; the second magnetic yoke is arranged on two adjacent first magnetic yokes so that the second tooth portion corresponds to the first tooth portion; The first yoke is provided with three first positioning holes on the same diameter line as the first connecting groove and the first connecting boss, and the three first positioning holes are evenly distributed along the circumferential direction of the first yoke; the first tooth portion is provided with a second positioning hole, and the second positioning hole is on a coaxial tangent line with the adjacent first positioning hole; Three third positioning holes are arranged on the same diameter line as the second magnetic yoke, the second connecting groove and the second connecting boss, and the three third positioning holes are evenly distributed along the circumferential direction of the second magnetic yoke; a fourth positioning hole is arranged on the second tooth portion, and the fourth positioning hole is on a coaxial tangent line with the adjacent third positioning hole; The automatic processing and forming method of the motor stator core is completed by automatic processing equipment, and the automatic processing equipment includes a first punching mechanism, a second punching mechanism, a first feeding mechanism, a second feeding mechanism, a stacking conveying mechanism, an assembly jig, a welding mechanism and a blanking mechanism, wherein the first punching mechanism is used to punch and form the first stator iron sheet, the second punching mechanism is used to punch and form the second stator iron sheet, the assembly jig is arranged on the stacking conveying mechanism, the stacking conveying mechanism is used to drive the assembly jig to circulate and transmit, the first feeding mechanism is used to grab the first stator iron sheet punched by the first punching mechanism, and place it on the assembly jig to assemble into a first stator iron ring, the second feeding mechanism is used to grab the second stator iron sheet punched on the second punching mechanism, and place it on the first stator iron ring on the assembly jig for stacking to form a second stator iron ring; the welding mechanism welds a plurality of first stator iron rings stacked on each other with the second stator iron ring to form a stator core, and the blanking mechanism is used to take out and blank the stator core assembled on the assembly jig; The method for automatically processing and forming a motor stator core comprises the following steps: Step S1, forming the stator iron sheet: the first punching mechanism punches the first stator iron sheet from the strip material by punching, and the second punching mechanism punches the second stator iron sheet from the strip material by punching; Step S2, conveying and vibrating the stator iron sheet: after the first punching mechanism punches the first stator iron sheet into shape, the sheet-shaped first stator iron sheet is vibrated and conveyed toward the first feeding mechanism; at the same time, after the second punching mechanism punches the second stator iron sheet into shape, the sheet-shaped second stator iron sheet is vibrated and conveyed toward the second feeding mechanism; Step S3, assembling the first stator iron ring: the first feeding mechanism grabs the first stator iron sheet, and after grabbing, the first stator iron sheet is placed on the assembly jig, and 12 first stator iron sheets are assembled in sequence for circumferential combination. After assembling one each time, the assembly jig is rotated 30°, and the next one is assembled, until 12 assemblies are completed to form the first stator iron ring; Step S4, assembling the second stator iron ring: the second feeding mechanism grabs the second stator iron sheet, and after grabbing, the second stator iron sheet is transferred to the top of the assembly jig, and the assembly jig is rotated 15° so that the third positioning hole corresponds to the first positioning holes of the two adjacent first stator iron sheets, and the second positioning hole corresponds to the fourth positioning hole; so that the first tooth portion is flush with the second tooth portion; then 12 second stator iron sheets are assembled in sequence for circumferential combination, and after each assembly, the assembly jig is rotated 30°, and the next one is assembled, until 12 assemblies are completed to form a second stator iron ring; Step S5, repeating steps S3 to S4 for multiple times to laminate the first stator iron ring and the second stator iron ring in multiple layers to form a stator core; Step S6, stator core welding: after the stator core is stacked, the stack conveying mechanism transports the assembly jig to the welding mechanism, and the welding mechanism welds the outer side of the stator core so that the first stator iron ring is fixedly connected to the second stator iron ring; Step S7, unloading the stator core: after welding and fixing, the stator core is unloaded from the assembly jig by the unloading mechanism.

2. The method for automatically processing and forming a motor stator core according to claim 1, characterized in that: One end of the first positioning hole, the second positioning hole, the third positioning hole and the fourth positioning hole are all formed with a matching flange by stamping, and the matching flange is used for positioning and matching the adjacent first stator iron ring and the second stator iron ring; In the step S4, the third positioning hole is positioned with the first positioning hole by means of a matching boss, and the fourth positioning hole is positioned with the second positioning hole by means of a matching boss.

3. The method for automatically processing and forming the motor stator core according to claim 2, characterized in that: When the first stator iron ring and the second stator iron ring are stacked, the second magnetic yoke is positioned and matched with two adjacent first positioning holes through the third positioning hole, so that the first tooth portion is aligned with the second tooth portion and the second positioning hole is matched with the fourth positioning hole.

4. The method for automatically processing and forming a motor stator core according to claim 1, characterized in that: The first punching mechanism includes a first material unwinding component, a first stamping component, a first stamping die, a first material receiving and conveying component, a first vibrating screen component and a first discharge tray; the first material unwinding component is used to discharge the material toward the first stamping die, the first stamping die is arranged on the first stamping component, the first stamping component is used to drive the first stamping die to punch the material into a first stator iron sheet, and the material falls into the first material receiving and conveying component, the first material receiving and conveying component conveys the first stator iron sheet to the first vibrating screen component, the first vibrating screen component screens the direction of the first stator iron sheet by vibration, and the first discharge tray is used to place the first stator iron sheet with adjusted direction; the first loading mechanism is used to grab the first stator iron sheet on the first discharge tray.

5. The method for automatically processing and forming the motor stator core according to claim 4, characterized in that: The second punching mechanism includes a second material unwinding component, a second stamping component, a second stamping die, a second material receiving and conveying component, a second vibrating screen component and a second discharge tray; the second material unwinding component is used to discharge the material toward the second stamping die, the second stamping die is arranged on the second stamping component, the second stamping component is used to drive the second stamping die to punch the material into a second stator iron sheet, and drop it into the second material receiving and conveying component, the second material receiving and conveying component conveys the second stator iron sheet to the second vibrating screen component, the second vibrating screen component screens the direction of the second stator iron sheet by vibration, and the second discharge tray is used to place the second stator iron sheet with adjusted direction; the second loading mechanism is used to grab the second stator iron sheet on the second discharge tray.

6. The method for automatically processing and forming a motor stator core according to claim 1, characterized in that: The first feeding mechanism includes a first material picking rack, a first detection module, a first material picking fixed rack, a first connecting rod driving module, a first rotating driving module and a first material picking element. The first detection module is arranged on the first material picking rack. The first detection module is a detection camera and faces the first material discharge tray to provide the first connecting rod driving module and the first rotating driving module with the position and direction of the material to be picked up. The first material picking fixed rack is arranged at the top end of the first material picking rack. The first connecting rod driving module and the first rotating driving module are both arranged on the first material picking fixed rack. The first connecting rod driving module is provided with multiple groups, and the multiple groups of first connecting rod driving modules are provided with multiple groups of first connecting rod driving modules. The module is arranged around the first rotation drive module, and the first connecting rod drive module includes a first connecting rod drive motor, a first movable connecting rod and a second movable connecting rod. The driving end of the first connecting rod drive motor is connected to the first movable connecting rod, one end of the second movable connecting rod is hinged to the first movable connecting rod, and the other end is connected to the first material picking element; the first rotation drive module includes a first rotation drive motor, a first rotation connecting rod and a first telescopic connecting rod. The first rotation drive motor is connected to the first rotation connecting rod, one end of the first telescopic connecting rod is movably connected to the first rotation connecting rod, and the other end is connected to the first material picking element with a universal joint.

7. The method for automatically processing and forming a motor stator core according to claim 6, characterized in that: The second feeding mechanism includes a second material picking rack, a second detection module, a second material picking fixed rack, a second connecting rod driving module, a second rotating driving module and a second material picking element. The second detection module is arranged on the second material picking rack. The second detection module is a detection camera and faces the second material discharge tray to provide the second connecting rod driving module and the second rotating driving module with the position and direction of material picking. The second material picking fixed rack is arranged at the top end of the second material picking rack. The second connecting rod driving module and the second rotating driving module are both arranged on the second material picking fixed rack. The second connecting rod driving module is provided with multiple groups, and the multiple groups of second connecting rod driving modules are provided with multiple groups of second connecting rod driving modules. The module is arranged around the second rotation drive module, and the second connecting rod drive module includes a second connecting rod drive motor, a third movable connecting rod and a fourth movable connecting rod. The driving end of the second connecting rod drive motor is connected to the third movable connecting rod, one end of the second movable connecting rod is hinged to the second movable connecting rod, and the other end is connected to the second material picking element; the second rotation drive module includes a second rotation drive motor, a second rotation connecting rod and a second telescopic connecting rod. The second rotation drive motor is connected to the second rotation connecting rod, one end of the second telescopic connecting rod is movably connected to the second rotation connecting rod, and the other end is connected to the second material picking element with a universal joint.

8. The method for automatically processing and forming a motor stator core according to claim 1, characterized in that: The stack conveying mechanism comprises at least two groups of mutually connected conveying lines, and the conveying lines are provided with positioning components, and the positioning components are used to position the assembly jig on the conveying lines; The assembly jig is provided with an assembly drive module and an assembly disk, the assembly drive module is used to drive the assembly disk to rotate, the assembly disk is provided with an assembly slot, the assembly disk is provided with a welding slot located outside the assembly slot, one end of the welding slot is connected to the assembly slot; the first feeding mechanism is used to assemble the first stator iron sheet on the assembly slot, and after each assembly, the assembly drive module drives the assembly slot to rotate to the position of the next first stator iron sheet to discharge the material; The second feeding mechanism is used to assemble the second stator iron sheet on the first stator iron sheet of the assembly slot. After each assembly, the assembly drive module drives the assembly slot to rotate to the position of the next second stator iron sheet to discharge the material.

9. The method for automatically processing and forming a motor stator core according to claim 8, characterized in that: The welding mechanism includes a pressing module and a welding module. The pressing module is used to press and fix the stator core assembled on the assembly fixture. The welding module is provided with multiple groups, and the multiple groups of welding modules correspond to welding grooves. The welding module includes a welding adjustment module, a welding drive module and a welding head. The welding drive module is arranged on the welding drive module, and the welding head is arranged on the welding drive module. The welding drive module is used to drive the welding head to move toward the welding groove to weld the first stator iron ring to the second stator iron ring.

10. The method for automatically processing and forming a motor stator core according to claim 1, characterized in that: The unloading mechanism includes an unloading robot and an unloading conveyor line. The unloading robot is used to grab the welded stator core on the assembly fixture and place it on the unloading conveyor line for unloading.

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