Brushless motor stator core fully automatic production line

Abstract

The present invention relates to the technical field of stator core production, and in particular to a fully automatic production line for brushless motor stator cores, comprising a first punching mechanism, a second punching mechanism, a first feeding mechanism, a second feeding mechanism, a lamination conveying mechanism, an assembly jig, a welding mechanism, and a feeding mechanism. The first punching mechanism is used to punch and form a first stator iron sheet, the second punching mechanism is used to punch and form a second stator iron sheet, the first feeding mechanism is used to grab the first stator iron sheet punched by the first punching mechanism, and place it on an assembly jig to assemble it into a first stator iron ring, and the second feeding mechanism is used to grab the second stator iron sheet punched by 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 present invention achieves a significant improvement in production efficiency and stable and reliable product quality through a highly automated and integrated design.

Description

Technical Field

[0001] The present invention relates to the technical field of stator core production, in particular to a full-automatic production line for brushless motor stator cores. Background Art

[0002] The basic requirements for the stator core are good magnetic conductivity and low loss. It is composed of punched sheets and various fasteners compressed together. 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 from silicon steel sheets and stacked on the positioning ribs. The positioning ribs are welded to the base ring plate through the support plate, and the core is compressed into a whole by tension bolts through the upper and lower tooth pressure plates. The production process of the motor stator core involves multiple steps, among which laser welding technology has been widely used in the stacking forming link due to its advantages of 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 seam to form a stator as a whole.

[0003] The existing motor stator core production process suffers from poor structural stability and low production efficiency due to the stator core itself, which affects product quality. Therefore, new improvements are needed to the existing motor stator core production and structure. Summary of the Invention

[0004] To solve the above problems, the present invention realizes a fully automatic production line for brushless motor stator cores through a highly automated and integrated design, which significantly improves production efficiency, stabilizes and relies on reliable product quality, effectively controls costs, and enhances production flexibility.

[0005] The technical solution adopted by the present invention is: a fully automatic production line for a brushless 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 includes a first magnetic yoke, a first tooth portion, and a first pole shoe, and first connecting grooves and first connecting bosses are provided on both sides of the first magnetic yoke, and adjacent two first stator iron sheets are spliced by the first connecting grooves and the first connecting bosses, the first magnetic yoke is arc-shaped, and the first tooth portion is connected to On one side of the first magnetic yoke, the angle between the axial tangent of the first tooth portion 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, and second connecting grooves and second connecting bosses are provided on both sides of the second magnetic yoke. The two adjacent second stator iron sheets are spliced through the second connecting grooves and the second connecting bosses. The second magnetic yoke is arc-shaped, and the second tooth portion is connected to one side of the second magnetic yoke. 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.

[0006] The fully automatic production line for the stator core of a brushless motor includes a first punching mechanism, a second punching mechanism, a first loading mechanism, a second loading mechanism, a stacking conveying mechanism, an assembly jig, a welding mechanism, and a blanking mechanism. The first punching mechanism is used to punch out the first stator iron sheet, and the second punching mechanism is used to punch out the second stator iron sheet. The assembly jig is arranged on the stacking conveying mechanism, and the stacking conveying mechanism is used to drive the assembly jig for circular transmission. The first loading 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 it into a first stator iron ring. The second loading 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 multiple stacked first stator iron rings to the second stator iron ring to form a stator core. The blanking mechanism is used to remove and blank the stator core assembled on the assembly jig.

[0007] A further improvement to the above scheme is that three first positioning holes are provided on the same diameter line as the first magnetic yoke, the first connecting groove and the first connecting boss, and the three first positioning holes are evenly distributed along the circumference of the first magnetic 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.

[0008] A further improvement to the above scheme is that three third positioning holes are provided 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; 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.

[0009] A further improvement to the above solution is 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 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.

[0010] A further improvement to the above solution 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.

[0011] 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 vibrates to screen the direction of the first stator iron sheet, 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.

[0012] 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 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 vibrates to screen the direction of the second stator iron sheet, 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.

[0013] 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, the first connecting rod driving module is provided with multiple groups, multiple The first connecting rod driving module of the group is arranged around the first rotation 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 rotation driving module includes a first rotation driving motor, a first rotation connecting rod and a first telescopic connecting rod. The first rotation driving 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.

[0014] 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 the material to be picked up; 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 rotation 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 rotation driving module includes a second rotation driving motor, a second rotation connecting rod and a second telescopic connecting rod. The second rotation driving 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.

[0015] A further improvement to the above solution 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.

[0016] A further improvement to the above scheme is that 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 groove, the assembly disk is located on the outside of the assembly groove and is provided with a welding groove, 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.

[0017] A further improvement to the above solution is that the second feeding mechanism is used to assemble the second stator iron sheet on the first stator iron sheet in 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.

[0018] 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 in multiple groups, and the multiple groups of welding modules correspond to welding slots, 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 slot to weld the first stator iron ring to the second stator iron ring.

[0019] A further improvement to the above solution is that the blanking mechanism includes a blanking robot and a blanking conveyor line, wherein the blanking robot is used to grab the welded stator core on the assembly jig and place it on the blanking conveyor line for unloading.

[0020] The beneficial effects of the present invention are:

[0021] Compared to existing stator cores, the present invention utilizes a stacked structure of multiple first and second stator rings to create a compact and stable stator core. This stacked structure not only enhances the mechanical strength of the stator core but also helps reduce electromagnetic leakage, improving the overall performance of the motor. Furthermore, the stacked design makes the stator core easy to assemble and disassemble during manufacturing, facilitating repair and replacement. Furthermore, the circumferential connection between the first and second stator iron sheets ensures the circumferential continuity and consistency of the stator core. The splicing of the first connecting groove and the first connecting boss, and the second connecting groove and the second connecting boss, not only simplifies the stator iron sheet connection process but also improves the reliability and precision of the connection. This design helps reduce vibration and noise in the stator core during operation, improving the stability and durability of the motor. Furthermore, the special structural design of the first and second stator iron sheets, such as the arrangement of the first yoke, first tooth portion, and first pole shoe, and the second yoke, second tooth portion, and second pole shoe, further optimizes the electromagnetic performance of the motor. In particular, the design of a 10° angle between the axis tangents of the first and second teeth and the axis tangent of the yoke helps improve the air gap flux distribution of the motor, increasing its power density and efficiency. Finally, the layout of the second yoke on two adjacent first yokes ensures that the first and second teeth correspond, thereby enhancing the electromagnetic coupling effect of the stator core. This design not only improves the motor's output performance, but also provides better dynamic response capabilities when the load changes.

[0022] The fully automated production line for brushless motor stator cores integrates the first and second punching mechanisms, enabling rapid and precise stamping of stator cores. The automation of this step significantly improves production efficiency, reduces reliance on manual operations, and ensures consistent and stable stamping. During the lamination and assembly stages, the first and second loading mechanisms precisely grasp and place the stamped stator cores onto the assembly jig, forming the first and second stator rings. The stacking conveyor mechanism's circular transport function further enhances the production line's continuous operation, ensuring a smooth and efficient lamination and assembly process. Furthermore, the welding mechanism utilizes advanced welding technology to securely weld multiple stacked first and second stator rings together, creating a stator core with a stable structure and reliable performance. The automation of this step not only improves welding quality but also significantly reduces the potential safety hazards associated with manual welding. The unloading mechanism removes the assembled stator core from the assembly jig, preparing it 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 operations. Through a highly automated and integrated design, the present invention achieves a significant increase in production efficiency, stable and reliable product quality, effective cost control, and enhanced production flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 Schematic diagram of the structure of the stator core of the present invention;

[0024] Figure 2 for Figure 1 Schematic diagram of the stator core structure;

[0025] Figure 3 for Figure 2 Explosion diagram of the stator core;

[0026] Figure 4 Schematic diagram of the stamping preparation process of the first stator iron sheet and the second stator iron sheet of the present invention;

[0027] Figure 5 This is a structural diagram of the fully automatic production line for the stator core of a brushless motor of the present invention;

[0028] Figure 6 for Figure 5 Schematic diagram of the structure of the first punching mechanism and the second punching mechanism of the brushless motor stator core fully automatic production line;

[0029] Figure 7 for Figure 5 Schematic diagram of the structure of the first punching mechanism and the second punching mechanism of the brushless motor stator core fully automatic production line;

[0030] Figure 8 for Figure 5 Schematic diagram of the structure of the first and second feeding mechanisms of the fully automatic production line for brushless motor stator cores;

[0031] Figure 9 for Figure 5 Schematic diagram of the structure of the first and second feeding mechanisms of the fully automatic production line for brushless motor stator cores;

[0032] Figure 10 for Figure 5 Schematic diagram of the partial structure of the first and second feeding mechanisms of the fully automatic production line for brushless motor stator cores;

[0033] Figure 11 for Figure 5 Schematic diagram of the structure of the lamination conveying mechanism of the fully automatic production line for brushless motor stator cores;

[0034] Figure 12 for Figure 11 A is an enlarged schematic diagram;

[0035] Figure 13 for Figure 5Schematic diagram of the structure of the lamination conveying mechanism of the fully automatic production line for brushless motor stator cores;

[0036] Figure 14 for Figure 5 Schematic diagram of the welding mechanism of the fully automatic production line for brushless motor stator cores.

[0037] 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 ;

[0038] 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;

[0039] First punching mechanism 3, first material unwinding assembly 31, first punching assembly 32, first punching die 33, first material receiving and conveying assembly 34, first vibrating screen assembly 35, first discharge tray 36;

[0040] 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 discharge tray 46;

[0041] First feeding mechanism 5, first material picking frame 51, first detection module 52, first material picking fixed frame 53, first connecting rod driving module 54, first connecting rod driving motor 541, first movable connecting rod 543, second movable connecting rod 544, first rotation driving module 55, first rotation driving motor 551, first rotation connecting rod 552, first telescopic connecting rod 553, first material picking element 56;

[0042] Second feeding mechanism 6, second picking rack 61, second detection module 62, second picking fixed rack 63, second connecting rod driving module 64, second connecting rod driving motor 641, third movable connecting rod 642, fourth movable connecting rod 643, second rotation driving module 65, second rotation driving motor 651, second rotating connecting rod 652, second telescopic connecting rod 653, second picking element 66;

[0043] Lamination conveying mechanism 7, conveying line 71, positioning assembly 72;

[0044] Assembly jig 8, assembly drive module 81, assembly plate 82, welding slot 821, assembly slot 83;

[0045] 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;

[0046] Unloading mechanism 20 , unloading robot 201 , unloading conveyor line 202 . DETAILED DESCRIPTION

[0047] To facilitate understanding of the present invention, the present invention will be described more fully below with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the accompanying drawings. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present disclosure.

[0048] 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 referred to as being “connected to” another element, it may be directly connected to the other element or there may be an intermediate element.

[0049] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present invention pertains. 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. Figures 1 to 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 circumferentially connecting a plurality of first stator iron sheets 11, and the second stator iron ring 2 is formed by circumferentially connecting a plurality of second stator iron sheets 21; 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. The adjacent two 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, and the first tooth portion 112 is connected to one side of the first magnetic yoke 111. The first tooth portion 112 is connected to the first tooth portion 112. The angle between the axial tangent of 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. The second magnetic yoke 211 is provided with a second connecting groove 214 and a second connecting boss 215 on both sides. 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. 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 provided 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 laminated structure not only enhances the mechanical strength of the stator core 10 but also helps reduce electromagnetic leakage, improving the overall performance of the motor. Furthermore, the laminated design makes the stator core 10 easy to assemble and disassemble during manufacturing, facilitating repair and replacement. Secondly, the circumferential connection design of the first and second stator iron sheets 11, 21 ensures the continuity and consistency of the stator core 10 in the circumferential direction. The splicing 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 stator iron sheet connection process but also improves the reliability and precision of the connection. This design helps reduce vibration and noise in the stator core 10 during operation, improving the stability and durability of the motor. Furthermore, the special structural design of the first and second stator iron sheets 11, 21, such as the arrangement of the first magnetic yoke 111, the first tooth portion 112, and the first pole shoe 113, and the second magnetic 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 axis tangent of the first tooth portion 112 and the second tooth portion 212 and the axis tangent of the yoke is 10° helps to improve the air gap magnetic flux distribution of the motor and increase the power density and efficiency of the motor.Finally, the arrangement of the second magnetic yoke 211 on two adjacent first magnetic yokes 111 achieves alignment 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 capabilities when the load changes.

[0050] 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. The three first positioning holes 116 are evenly distributed circumferentially along the first yoke 111. The first tooth portion 112 is provided with a second positioning hole 117, which is coaxially tangent to the adjacent first positioning holes 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. The three third positioning holes 216 are evenly distributed circumferentially along the second yoke 211. The second tooth portion 212 is provided with a fourth positioning hole 217, which is coaxially tangent to the adjacent third positioning holes 216. In this embodiment, the design of the positioning holes greatly improves the assembly accuracy of the stator core 10. Because the positioning holes are evenly distributed circumferentially along the yoke, they provide precise positioning and fixing points for the various components of the stator core 10. This not only ensures the accurate relative positioning of the various components but also reduces potential errors during assembly, 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 coaxially and tangentially with the adjacent first positioning hole 116 and the third positioning hole 216, further optimizing the structural stability of the stator core 10. This design strengthens the connection between the various components, allowing them to withstand greater mechanical stress and electromagnetic forces. It also enhances the heat dissipation performance of the stator core 10, as the optimized component layout allows for more efficient use of air flow for heat dissipation. Furthermore, this design 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. Furthermore, the even distribution of the positioning holes and the coaxial tangent arrangement can also improve production efficiency, making automated and mechanized production more easily achievable.

[0051] 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 precisely 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 additional positioning and fixing steps and improves 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 product quality.

[0052] When the first stator iron ring 1 and the second stator iron ring 2 are stacked, the second magnetic 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 aligned with the fourth positioning hole 217. In this embodiment, when the first stator iron ring 1 and the second stator iron ring 2 are stacked, the third positioning hole 216 of the second magnetic yoke 211 is positioned and matched with the two adjacent first positioning holes 116, ensuring stability and accuracy during assembly. This design not only simplifies the assembly process but also greatly improves production efficiency by reducing rework and waste caused by inaccurate positioning. More importantly, this positioning mechanism ensures 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, as the alignment of the teeth directly affects the distribution and efficiency of the magnetic flux. Through precise alignment, magnetic resistance can be minimized, improving the overall performance of the motor. 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 prevent the stator iron ring from shifting or deforming during operation, but also improves the durability and reliability of the entire stator core 10.

[0053] See Figures 5 to 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 blanking mechanism 20. 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 set 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 ... The first stator iron sheet 11 punched out 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 out 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. The blanking mechanism 20 is used to remove and blank 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 production efficiency, reduces dependence on manual operation, and ensures the consistency and stability of stamping. Secondly, during the lamination and assembly process, the first feeding mechanism 5 and the second feeding mechanism 6 can accurately grasp the stamped stator iron sheets and place them on the assembly jig 8 to form the first stator iron ring 1 and the second stator iron ring 2. The circular transmission function of the lamination conveyor mechanism 7 further enhances the continuous operation capacity of the production line, ensuring the smoothness and efficiency of the lamination and assembly process. In addition, the welding mechanism 9 uses advanced welding technology to firmly weld the multiple stacked first stator iron rings 1 and second stator iron rings 2 together to form a stator core 10 with stable structure and reliable performance. The automation of this step not only improves 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 iron core 10 from the assembly jig 8 in preparation 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 operations. Through a highly automated and integrated design, the present invention achieves a significant increase in production efficiency, stable and reliable product quality, effective cost control, and enhanced production flexibility.

[0054] See 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 punch the material into the 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 after the direction is adjusted; 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 punch the material to form the second stator iron sheet 21, and fall 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 loading 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 from unwinding to stamping of materials through its integrated core components such as the first material unwinding component 31, the first stamping component 32, and the first stamping die 33. 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 and conveying component 34 and the first vibrating screen component 35 further ensures the stability and directional accuracy of the stator iron sheet during the conveying process, laying a solid foundation for subsequent assembly processes. 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 punch 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.Furthermore, the design of the first and second discharge trays 36, 46 provides a convenient platform for adjusting the orientation of the stator iron sheets. Combined with the precise gripping capabilities of the first and second loading mechanisms 5, 6, this enables seamless integration of the stator iron sheet production and loading process, further enhancing the automation and efficiency of the production line.

[0055] See Figures 8 to 10As shown, the first feeding mechanism 5 includes a first material picking rack 51, a first detection module 52, a first material picking fixed rack 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 rack 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 up; the first material picking fixed rack 53 is arranged at the top of the first material picking rack 51, the first connecting rod driving module 54 and the first rotating driving module 55 are both arranged on the first material picking fixed rack 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 link 543 and a second movable link 544. The driving end of the first connecting rod drive motor 541 is connected to the first movable link 543, and one end of the second movable link 544 is hinged to the first movable link 543 and the other end is connected to the first material-taking element 56; the first rotation drive module 55 includes a first rotation drive motor 551, a first rotation link 552 and a first telescopic link 553. The first rotation drive motor 551 is connected to the first movable link 543, and the second movable link 544 is connected to the first material-taking element 56. The first telescopic link 553 is connected to the first rotating link 552, one end of the first telescopic link 553 is movably connected to the first rotating link 552, and the other end is connected to the first material-picking element 56 by a universal joint; specifically, the second feeding mechanism 6 includes a second material-picking rack 61, a second detection module 62, a second material-picking fixed rack 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 rack 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 up; the second The material picking fixed frame 63 is arranged at the top end of the second material picking frame 61, and 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. 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 both equipped with advanced detection modules, namely 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 material picking. Through real-time feedback of image data, the system can quickly adjust the material picking strategy to ensure that each material picking 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 material picking process. In the first feeding mechanism 5 and the second feeding mechanism 6, the connecting rod drive module drives the movable connecting rod through the motor to achieve the horizontal movement and positioning of the feeding element. The rotation drive module further adjusts the posture of the feeding element through the combination of rotating connecting rods and telescopic connecting rods to adapt to stator cores 10 of different shapes and sizes. This multi-degree-of-freedom, high-precision control method makes the feeding 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 sets of connecting rod drive modules surround the rotation drive module. This layout not only optimizes space utilization, but also improves the stability and reliability of the feeding system. Through the coordinated work of multiple connecting rod drive modules, the system can easily cope with complex feeding tasks and ensure the continuity and stability of the production line.

[0056] See Figures 11 to 13As shown, the lamination conveying mechanism 7 includes at least two groups of interconnected conveyor lines 71, and the conveyor lines 71 are provided with a positioning assembly 72, and the positioning assembly 72 is used to position the assembly jig 8 on the conveyor line 71; specifically, the assembly jig 8 is provided with an assembly drive module 81 and an assembly disk 82, 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 provided with a welding groove 821 on the outside of the assembly groove 83, 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 the material. In this embodiment, by designing at least two groups of interconnected conveyor lines 71, continuous and efficient transportation of the stator iron sheets is achieved, 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 positioning assembly 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 is accurately placed in the predetermined position during the assembly process, thus avoiding production errors caused by inaccurate positioning. This not only improves the product qualification rate but also reduces the additional costs incurred due to rework. Furthermore, the integrated assembly drive module 81 and assembly tray 82 on the assembly jig 8 further enhance the level of automation. The assembly drive module 81 drives the assembly tray 82 to rotate, allowing the assembly slots 83 to sequentially reach different discharge positions, thereby achieving automated assembly of the stator iron sheets. This design not only reduces the labor intensity of workers but also improves assembly efficiency and ensures production consistency and stability. In addition, the connection between the welding slots 821 and the assembly slots 83 on the assembly tray 82 facilitates subsequent welding processes. After the stator iron sheets are assembled, welding can be performed directly through the welding slots 821, eliminating the need for additional handling or adjustment. This design not only simplifies the production process but also improves the overall flexibility of the production line.

[0057] 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. After each assembly, the assembly drive module 81 drives the assembly slot 83 to rotate to the position of the next second stator iron sheet 21 for unloading. 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. This process does not require manual intervention, significantly improving 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 streamlined 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.

[0058] See Figure 14As shown, the welding mechanism 9 includes a pressing module 91 and a welding module 92. The pressing module 91 is used to press and fix the stator core 10 assembled on the assembly jig 8. The welding modules 92 are provided in multiple groups, each corresponding to the welding slot 821. The welding modules 92 include a welding adjustment module 921, a welding drive module 922, and a welding head 923. The welding drive module 922 is provided on the welding drive module 922. The welding head 923 is provided on the welding drive module 922. The welding drive module 922 is used to drive the welding head 923 toward the welding slot 821 to weld the first stator iron ring 1 to the second stator iron ring 2. In this embodiment, the pressing module 91 plays a vital role as a pre-treatment step 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 remains stable during the subsequent welding process, avoiding poor welding caused by looseness or misalignment. This step not only improves the product qualification rate, but also reduces the time wasted due to repeated adjustments, thereby speeding up the overall pace of the production line. The design of the welding module 92 further reflects 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 simultaneously, 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. This structural design allows for 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 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. By optimizing the collaborative operation between the modules, a seamless connection from pressing to welding is achieved, 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.

[0059] The unloading mechanism 20 includes a unloading manipulator 201 and an unloading conveyor line 202. The unloading manipulator 201 is used to grab the welded stator core 10 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 welded stator core 10 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 steps. 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 transportation, 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 waiting time and resource waste in the production process. By closely cooperating with upstream welding equipment and downstream processing equipment, a fully automated process for the production of the stator core 10 is achieved, significantly improving production efficiency and capacity.

[0060] The above embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous modifications and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A fully automatic production line for brushless motor stator cores, characterized by: 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 includes a first magnetic yoke, a first tooth portion and a first pole shoe, and a first connecting groove and a first connecting boss are provided on both sides of the first magnetic yoke, and two adjacent first stator iron sheets are spliced with the first connecting groove and the first connecting boss, the first magnetic yoke is arc-shaped, and the first tooth portion is connected to one side of the first magnetic yoke; the second stator iron sheet includes a second magnetic yoke, a second tooth portion and a second pole shoe, and a second connecting groove and a second connecting boss are provided on both sides of the second magnetic yoke, and two adjacent second stator iron sheets are spliced with the second connecting groove and the second connecting boss, the second magnetic yoke is arc-shaped, and the second tooth portion is connected to one side of the second magnetic yoke; 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 brushless motor stator core fully automatic production line 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. The first punching mechanism is used to punch out the first stator iron sheet, and the second punching mechanism is used to punch out the second stator iron sheet. The assembly jig is arranged on the stacking conveying mechanism, and the stacking conveying mechanism is used to drive the assembly jig for cyclic transmission. 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 it 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 the multiple stacked first stator iron rings with the second stator iron ring to form a stator core; the blanking mechanism is used to take out the stator core assembled on the assembly jig for blanking; 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 material discharge tray; 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 material discharge tray; the first loading mechanism includes a first material picking rack, a first detection module, a first material picking fixed rack, a first connecting rod drive module, a first rotating drive module and a first material picking element; the second loading mechanism includes a second material picking rack, a second detection module, a second material picking fixed rack, a second connecting rod drive module, a second rotating drive module and a second material picking element.

2. The fully automatic production line for brushless motor stator cores according to claim 1, characterized in that: The first magnetic yoke is provided with three first positioning holes on the same diameter as the first connecting groove and the first connecting boss, and the three first positioning holes are evenly distributed along the circumference of the first magnetic 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; Three third positioning holes are provided on the same diameter line as the second magnetic yoke, the second connecting groove and the second connecting boss. The three third positioning holes are evenly distributed along the circumferential direction of the second magnetic yoke. The second tooth portion is provided with a fourth positioning hole. The fourth positioning hole is on a coaxial tangent with the adjacent third positioning hole.

3. The fully automatic production line for brushless motor stator cores according to claim 2, 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.

4. The fully automatic production line for brushless motor stator cores according to claim 3 is characterized by: 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.

5. The fully automatic production line for brushless motor stator cores according to claim 1, characterized in that: The first material unwinding assembly is used to discharge the material toward the first stamping die. The first stamping die is arranged on the first stamping assembly. The first stamping assembly is used to drive the first stamping die to stamp the material into a first stator iron sheet, and the sheet falls into the first material receiving and conveying assembly. The first material receiving and conveying assembly conveys the first stator iron sheet to the first vibrating screen assembly. The first vibrating screen assembly vibrates to screen the direction of the first stator iron sheet. The first discharge tray is used to place the first stator iron sheet after the direction is adjusted. The first loading mechanism is used to grab the first stator iron sheet on the first discharge tray. The second material unwinding assembly is used to discharge the material toward the second stamping die, the second stamping die is arranged on the second stamping assembly, the second stamping assembly 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 assembly, the second material receiving and conveying assembly conveys the second stator iron sheet to the second vibrating screen assembly, the second vibrating screen assembly screens the direction of the second stator iron sheet by vibration, the second discharge tray is used to place the second stator iron sheet after the direction is adjusted; the second loading mechanism is used to grab the second stator iron sheet on the second discharge tray.

6. The fully automatic production line for brushless motor stator cores according to claim 1, characterized in that: The first detection module is arranged on the first material picking rack, the first detection module is a detection camera, and is facing 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 required material picking; the first material picking fixed rack is arranged at the top 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 arranged around the first rotating driving module. The first connecting rod driving module includes a first connecting rod driving motor, a first movable connecting rod and a second movable connecting rod, a 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; The second detection module is arranged on the second material picking rack, and the second detection module is a detection camera, and is facing the second material discharge tray to provide the second connecting rod driving module and the second rotation driving module with the position and direction of the required material picking; the second material picking fixed rack is arranged at the top of the second material picking rack, and the second connecting rod driving module and the second rotation driving module are both arranged on the second material picking fixed rack, and the second connecting rod driving module is provided with multiple groups, and the multiple groups of second connecting rod driving modules are arranged around the second rotation driving module, 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 rotation driving module includes a second rotation driving motor, a second rotating connecting rod and a second telescopic connecting rod, the second rotation 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.

7. The fully automatic production line for brushless motor stator cores according to claim 1, characterized in that: The stacking conveying mechanism comprises at least two sets of mutually connected conveying lines, wherein 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 groove. The assembly disk is provided with a welding groove located outside the assembly groove. 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. 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.

8. The fully automatic production line for brushless motor stator cores according to claim 7, characterized in that: The second feeding mechanism is used to assemble the second stator iron sheet on the first stator iron sheet in 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 fully automatic production line for brushless motor stator cores 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 jig. The welding modules are provided in multiple groups, and the multiple groups of welding modules correspond to welding slots. 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, 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 slot to weld the first stator iron ring to the second stator iron ring.

10. The fully automatic production line for brushless motor stator cores 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 jig and place it on the unloading conveyor line for unloading.

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