Automatic production equipment for motor stator cores

Abstract

The present invention discloses an automatic production device for a motor stator core, which relates to the technical field of motor production. The device includes a machine base, on which a welding mechanism, a welding limit mechanism, a correction mechanism and a feeding and pushing mechanism are arranged. The correction mechanism is used to adjust the postures of a plurality of stacked silicon steel sheets to be consistent. The feeding and pushing mechanism is used to push the silicon steel sheets with adjusted postures into the welding limit mechanism, and fix the plurality of silicon steel sheets through the welding limit mechanism. The welding mechanism automatically welds the fixed plurality of silicon steel sheets. After the postures of the silicon steel sheets are uniformly corrected by the correction mechanism in the present invention, they are pushed into the welding limit mechanism by the feeding and pushing device for fixation, and finally welded by the welding mechanism. Multiple silicon steel sheets are fed at one time, improving the welding efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of motor production, and particularly to an automatic production device for a motor stator core. Background Art

[0002] The stator is the stationary part of a motor and consists of three parts: the stator core, the stator winding, and the frame. The stator is used to generate a rotating magnetic field. The stator core is stacked by silicon steel sheets, which is an important process in motor manufacturing. It means stacking the silicon steel sheets together according to a certain rule to form the core of the motor. Generally speaking, the stacking process of motor silicon steel sheets includes the following steps: First, cut and punch the silicon steel sheets according to the design requirements; then, stack the silicon steel sheets according to a certain rule; during the stacking process, professional jigs and positioning tools are needed to ensure the accurate position and size of the silicon steel sheets; finally, pre-fix the stacked silicon steel sheets by welding or other means.

[0003] The existing invention patent with the publication number of CN118989712B discloses an automatic production device for a motor stator core and its working method. It aligns and stacks the silicon steel sheet bodies in sequence until a specified number of silicon steel sheet bodies are neatly stacked within the limit vertical plates; then, drives the limit vertical plates and several silicon steel sheet bodies to rotate intermittently through the chassis, and cooperates with the up-and-down movement of the welding gun, so that the welding gun welds several silicon steel sheet bodies through the gap between the limit vertical plates to form an integral body, thus completing the processing of the stator core.

[0004] However, the following problems still exist in this invention patent: For the silicon steel sheets with a square appearance, since the position and attitude of each silicon steel sheet during feeding are different, only one silicon steel sheet can be pushed for feeding each time, and the whole feeding cannot be carried out, which will lead to a relatively low overall welding processing efficiency. Summary of the Invention

[0005] The purpose of the present invention is to provide an automatic production device for a motor stator core, which solves the technical problems raised in the above background art.

[0006] To solve the above technical problems, the present invention specifically provides the following technical solutions:

[0007] An automatic production device for a motor stator core includes a frame. A welding mechanism, a welding limit mechanism, a correction mechanism, and a feeding pushing mechanism are arranged on the frame. The correction mechanism is used to adjust the postures of a plurality of stacked silicon steel sheets to be consistent. The feeding pushing mechanism is used to push the plurality of silicon steel sheets with adjusted postures into the welding limit mechanism and fix the plurality of silicon steel sheets through the welding limit mechanism. The welding mechanism automatically welds the fixed plurality of silicon steel sheets.

[0008] As a preferred embodiment of the present invention, the correction mechanism includes a limiting plate annularly arranged on the machine base and a lifting device arranged on the machine base. A rotating device is arranged at the top of the lifting device. An elastic limiting member is arranged on the rotating device, and the elastic limiting member fits against the circumferential outer wall of the silicon steel sheet after rotation. A receiving groove for receiving the lifting device and the rotating device is formed in the machine base, and a rotating support structure for supporting the silicon steel sheet is arranged in the receiving groove.

[0009] As a preferred embodiment of the present invention, the elastic limiting member includes a bottom plate arranged on the rotating device. Two fixed sleeve groups are symmetrically arranged on the bottom plate. Each fixed sleeve group includes two fixed sleeves arranged on the bottom plate. A limiting rod is slidably sleeved in each fixed sleeve, and a spring connected to the bottom of the corresponding limiting rod is arranged at the inner bottom of each fixed sleeve.

[0010] Wherein, the distance between the two fixed sleeves on the same fixed sleeve group is not greater than the distance between the two fixed sleeve groups, and the distance between the two opposite limiting rods on the two fixed sleeve groups is equal to the maximum width of the silicon steel sheet.

[0011] As a preferred embodiment of the present invention, positioning protrusions and a plurality of sliding grooves are arranged on the inner side wall of the fixed sleeve. A plurality of sliding plates are arranged on the side wall of the limiting rod, and the plurality of sliding plates are respectively slidably connected in the corresponding sliding grooves. When the distance between the inner bottom of the fixed sleeve and the bottom of the limiting rod is the largest, the spring is in a compressed deformation state, and the distance between the top of the positioning protrusion and the bottom of the limiting rod is the same as the thickness of the silicon steel sheet.

[0012] As a preferred embodiment of the present invention, an adjustment groove is axially formed on the inner side wall of the fixed sleeve, and the positioning protrusion is slidably connected in the adjustment groove. An adjustment screw threadedly connected to the positioning protrusion is rotatably connected in the adjustment groove, and the adjustment screw is parallel to the axis of the fixed sleeve. The top of the adjustment screw extends upward to the outside of the fixed sleeve and is provided with a dial.

[0013] As a preferred embodiment of the present invention, the rotating support structure includes a plurality of support plates uniformly and slidably connected to the inner wall of the circumferential side of the receiving groove, and the plurality of support plates are respectively arranged along a plurality of radial directions of the receiving groove. The ends of the plurality of support plates are commonly connected to a support shaft coaxial with the limiting plate. A plurality of balls are rotatably connected to the top of each support plate, and each limiting rod is located between two adjacent support plates.

[0014] As a preferred embodiment of the present invention, the welding limiting mechanism includes a rotating device disposed on the machine base and embedded in the top of the machine base, and the rotating direction of the rotating device is perpendicular to the top of the machine base. A turntable is provided on the top of the rotating device, and an annular plate is provided on the top of the turntable. A plurality of construction grooves and a connection groove are evenly formed on the circumferential side of the annular plate. An arc-shaped plate with the same inner and outer diameters as the annular plate is slidably connected to the inner wall of the connection groove. A linear driving device connected to the outer wall of the arc-shaped plate is provided on the outer wall of the annular plate.

[0015] As a preferred embodiment of the present invention, the feeding pushing mechanism includes a pushing device disposed on the machine base, and a push plate for pushing silicon steel sheets is provided at one end of the pushing device;

[0016] The limiting plate is provided with a material pushing groove and a discharging groove. Sealing plates moving in the vertical direction are slidably connected to the inner walls of the material pushing groove and the discharging groove, and the inner walls of the two sealing plates are adapted to the inner wall of the limiting plate. Two linear motion devices respectively connected to the two sealing plates are provided on the outer wall of the limiting plate.

[0017] As a preferred embodiment of the present invention, a telescopic device that performs telescopic motion in the vertical direction is provided on the machine base, and a pressing plate is provided at the bottom of the telescopic device.

[0018] The present invention has the following beneficial effects compared with the prior art:

[0019] After the silicon steel sheets are uniformly corrected in attitude by the correction mechanism of the present invention, they are pushed into the welding limiting mechanism by the feeding pushing device for fixation, and finally welded by the welding mechanism. Multiple silicon steel sheets are fed at one time, improving the welding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only exemplary, and for those of ordinary skill in the art, without creative efforts, other implementation drawings can be obtained according to the provided drawings.

[0021] Figure 1 FIG. is a schematic diagram of the overall structure of the automatic production equipment for the motor stator core provided by the embodiment of the present invention;

[0022] Figure 2 FIG. is a schematic diagram of a partial structure of the automatic production equipment for the motor stator core provided by the embodiment of the present invention;

[0023] Figure 3 FIG. is a schematic diagram of a partial structure of the correction mechanism provided by the embodiment of the present invention;

[0024] Figure 4 This is a schematic cross-sectional view of an automatic production device for a motor stator core provided by an embodiment of the present invention;

[0025] Figure 5 This is a schematic structural view of an elastic limiting member provided by an embodiment of the present invention;

[0026] Figure 6 provided by an embodiment of the present invention Figure 5 A schematic enlarged view of the structure of part A shown in;

[0027] Figure 7 provided by an embodiment of the present invention Figure 5 A schematic enlarged view of the structure of part B shown in;

[0028] Figure 8 provided by an embodiment of the present invention Figure 4 A schematic enlarged view of the structure of part C shown in.

[0029] The reference numerals in the figure are respectively represented as follows:

[0030] 1, machine base; 2, welding mechanism; 3, welding limiting mechanism; 4, calibration mechanism; 5, feeding pushing mechanism; 6, telescopic device; 7, pressing plate;

[0031] 301, rotating device; 302, turntable; 303, annular plate; 304, construction groove; 305, connecting groove; 306, arc plate; 307, linear driving device; 401, limiting plate; 402, lifting device; 403, rotating device; 404, elastic limiting member; 405, accommodating groove; 406, bottom plate; 407, fixed sleeve; 408, limiting rod; 409, spring; 410, positioning protrusion; 411, sliding groove; 412, sliding plate; 413, adjusting groove; 414, adjusting screw; 415, dial; 416, support plate; 417, support shaft; 418, ball; 501, pushing device; 502, push plate; 503, discharge groove; 504, sealing plate; 505, linear motion device; 506, pushing groove. Detailed implementation manners

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0033] As Figures 1 to 8As shown in the figure, the present invention provides an automatic production device for a motor stator core, including a machine base 1, on which a welding mechanism 2, a welding limit mechanism 3, a correction mechanism 4 and a feeding and pushing mechanism 5 are arranged. The correction mechanism 4 is used to adjust the postures of a plurality of stacked silicon steel sheets to be consistent. The feeding and pushing mechanism 5 is used to push the plurality of silicon steel sheets with adjusted postures into the welding limit mechanism 3, and fix the plurality of silicon steel sheets through the welding limit mechanism 3. The welding mechanism 2 automatically welds the fixed plurality of silicon steel sheets.

[0034] The correction mechanism 4 includes a limiting plate 401 arranged in a ring shape on the machine base 1 and a lifting device 402 arranged on the machine base 1. A rotating device 403 is arranged at the top of the lifting device 402, and an elastic limiting member 404 is arranged on the rotating device 403. After rotation, the elastic limiting member 404 fits against the circumferential outer wall of the silicon steel sheet. A receiving groove 405 for accommodating the lifting device 402 and the rotating device 403 is opened on the machine base 1, and a rotating support structure for supporting the silicon steel sheet is arranged in the receiving groove 405.

[0035] The elastic limiting member 404 includes a bottom plate 406 arranged on the rotating device 403. Two fixed sleeve groups are symmetrically arranged on the bottom plate 406. Each fixed sleeve group includes two fixed sleeves 407 arranged on the bottom plate 406. A limiting rod 408 is slidably sleeved in each fixed sleeve 407, and a spring 409 connected to the bottom of the corresponding limiting rod 408 is arranged at the inner bottom of each fixed sleeve 407.

[0036] Wherein, the distance between the two fixed sleeves 407 on the same fixed sleeve group is not greater than the distance between the two fixed sleeve groups, and the distance between the two opposite limiting rods 408 on the two fixed sleeve groups is equal to the maximum width of the silicon steel sheet.

[0037] When this application is in use, a plurality of stacked silicon steel sheets are placed in the correction mechanism 4, that is, inside the limiting plate 401. At this time, the corners of the silicon steel sheet are in contact with the inner wall of the limiting plate 401, so that the moving tendency of the silicon steel sheet in the horizontal direction is restricted and it can only move in the vertical direction.

[0038] Subsequently, the lifting device 402 drives the rotating device 403 and the elastic limiting member 404 to move upward synchronously. The bottom plate 406 drives the plurality of fixed sleeves 407 to move upward until the plurality of limiting rods 408 abut against the lowermost silicon steel sheet and squeeze the limiting rods 408 to move downward to compress the spring 409. At this time, one or more of the four limiting rods 408 do not contact the lowermost silicon steel sheet, but pass through the lowermost silicon steel sheet and contact the upper silicon steel sheet. In order to prevent the top of the limiting rod 408 from protruding too far from the lowermost silicon steel sheet, it is necessary to control the deformation amount of the spring 409 caused by the downward extrusion of the limiting rod 408 to be the thickness of the silicon steel sheet, so that when correcting the position and attitude of the lowermost silicon steel sheet, the top of the limiting rod 408 can at most only contact the bottom of the second silicon steel sheet counted from the bottom up (hereinafter, the second silicon steel sheet and the like are numbered according to the position sequence from bottom to top).

[0039] Subsequently, the rotating device 403 drives the bottom plate 406 to drive the four fixed sleeves 407 and the limiting rods 408 thereon to rotate synchronously. The plurality of limiting rods 408 in contact with the lowermost silicon steel sheet all move to be out of contact with the lowermost silicon steel sheet. Under the elastic force of the spring 409, when the limiting rods 408 are out of contact with the lowermost silicon steel sheet, they will immediately move upward to contact the bottom of the second silicon steel sheet. At this time, the two fixed sleeve groups are respectively located on both sides of the silicon steel sheet, and at the same time, the corresponding four limiting rods 408 are also respectively located on both sides of the silicon steel sheet. Since the distance between the two opposite limiting rods 408 on the two fixed sleeve groups is equal to the maximum width of the silicon steel sheet, therefore, the limiting rods 408 on the two fixed sleeve groups respectively abut against both sides of the silicon steel sheet, thereby restricting the lowermost silicon steel sheet. As the rotating device 403 rotates, the four limiting rods 408 will drive the lowermost silicon steel sheet to rotate together.

[0040] After aligning the stacking directions of the plurality of silicon steel sheets in sequence according to the above steps, the lifting device 402 drives the plurality of limiting rods 408 to move downward into the receiving groove 405, and then the rotating device 403 drives the plurality of limiting rods 408 to rotate, so that the plurality of silicon steel sheets rotate synchronously to the preset placement direction. Finally, the feeding pushing mechanism 5 drives the plurality of silicon steel sheets to move synchronously into the welding limiting mechanism 3, and the welding mechanism 2 welds the plurality of silicon steel sheets in the welding limiting mechanism 3.

[0041] Since the plurality of silicon steel sheets are synchronously conveyed into the welding limiting mechanism 3, the steps of sequentially conveying single silicon steel sheets for feeding in the prior art can be avoided, and the welding efficiency is improved.

[0042] The accommodation groove 405 is used to place the lifting device 402 and the rotating device 403, so that the elastic limiting member 404 can enter the accommodation groove 4052 after completing one correction of the silicon steel sheet, avoiding interference with the placement and feeding of the silicon steel sheet. The rotating support structure is used to support the silicon steel sheet to ensure the stability of the silicon steel sheet during the correction process.

[0043] In this embodiment, the welding mechanism 2, the lifting device 402 and the rotating device 403 are all prior arts. Among them, the welding mechanism 2 can move up and down to weld the silicon steel sheet, which is also a prior art, and the technical principle will not be elaborated too much here.

[0044] Positioning protrusions 410 and a plurality of sliding grooves 411 are provided on the inner side wall of the fixed sleeve 407. A plurality of sliding plates 412 are provided on the side wall of the limiting rod 408, and the plurality of sliding plates 412 are respectively slidably connected in the corresponding sliding grooves 411. When the distance between the inner bottom of the fixed sleeve 407 and the bottom of the limiting rod 408 is the largest, the spring 409 is in a compressed deformation state, and the distance between the top of the positioning protrusion 410 and the bottom of the limiting rod 408 is the same as the thickness of the silicon steel sheet.

[0045] By setting the connection between the sliding plate 412 and the sliding groove 411, the limiting rod 408 is restricted from disengaging from the fixed sleeve 407, so that there is a maximum distance between the bottom of the limiting rod 408 and the inner bottom of the fixed sleeve 407, and the limiting rod 408 is supported by the compressed spring 409 to keep the position of the limiting rod 408 stable.

[0046] By setting the positioning protrusion 410 to limit the maximum distance of the downward movement of the limiting rod 408, the problem that the distance between the top of the other limiting rod 408 and it is too large when the deformation amount of one of the limiting rods 408 pressing the spring 409 is too large is avoided, so that each time a plurality of limiting rods 408 only correct one silicon steel sheet.

[0047] An adjustment groove 413 is axially formed on the inner side wall of the fixed sleeve 407, and the positioning protrusion 410 is slidably connected in the adjustment groove 413. An adjustment screw 414 threadedly connected to the positioning protrusion 410 is rotatably connected in the adjustment groove 413, and the adjustment screw 414 is parallel to the axis of the fixed sleeve 407. The top of the adjustment screw 414 extends upward to the outside of the fixed sleeve 407 and is provided with a dial 415.

[0048] By turning the dial 415, the adjustment screw 414 is driven to rotate, so as to drive the positioning protrusion 410 to slide up and down in the adjustment groove 413, and then adjust the distance between the positioning protrusion 410 and the bottom of the limiting rod 408 to be applicable to silicon steel sheets of different thicknesses.

[0049] The rotating support structure includes a plurality of support plates 416 that are evenly and slidably connected to the inner wall on the circumferential side of the receiving groove 405, and the plurality of support plates 416 are respectively arranged along a plurality of radial directions of the receiving groove 405. The ends of the plurality of support plates 416 are commonly connected to a support shaft 417 that is coaxial with the limiting plate 401. A plurality of balls 418 are rotatably connected to the top of each support plate 416, and each limiting rod 408 is located between two adjacent support plates 416.

[0050] The plurality of support plates 416 are interconnected through the support shaft 417, and through the connection between the support plates 416 and the inner wall of the receiving groove 405, the silicon steel sheets can be supported.

[0051] The balls 418 can reduce the frictional damage of the lowermost silicon steel sheet during rotation and feeding into the welding limiting mechanism 3.

[0052] The welding limiting mechanism 3 includes a rotating device 301 that is arranged on the machine base 1 and embedded in the top of the machine base 1, and the rotation direction of the rotating device 301 is perpendicular to the top of the machine base 1. A turntable 302 is arranged on the top of the rotating device 301, an annular plate 303 is arranged on the top of the turntable 302, a plurality of construction grooves 304 and a connection groove 305 are evenly formed on the circumferential side of the annular plate 303. An arc-shaped plate 306 with the same inner and outer diameters as the annular plate 303 is slidably connected to the inner wall of the connection groove 305, and a linear driving device 307 connected to the outer wall of the arc-shaped plate 306 is arranged on the outer wall of the annular plate 303.

[0053] The linear driving device 307 is used to drive the arc-shaped plate 306 to move up and down to open or close the connection groove 305. When the connection groove 305 is opened, the silicon steel sheets can enter. When the connection groove 305 is closed, the silicon steel sheets can be restricted from separating. Subsequently, the welding mechanism 2 welds the silicon steel sheets inside the annular plate 303 through the space at the construction grooves 304. The rotating device 301 is used to drive the turntable 302 to rotate to adjust the welding position of the silicon steel sheets, so as to perform comprehensive welding on the silicon steel sheets.

[0054] In this embodiment, the rotating device 301 is a prior art, and its technical principle will not be elaborated here too much.

[0055] The feeding pushing mechanism 5 includes a pushing device 501 arranged on the machine base 1, and a push plate 502 for pushing the silicon steel sheets is arranged at one end of the pushing device 501.

[0056] A pushing groove 506 and a discharging groove 503 are formed on the limiting plate 401. Sealing plates 504 moving in the vertical direction are slidably connected to the inner walls of the pushing groove 506 and the discharging groove 503, and the inner walls of the two sealing plates 504 are adapted to the inner wall of the limiting plate 401. Two linear motion devices 505 respectively connected to the two sealing plates 504 are arranged on the outer wall of the limiting plate 401.

[0057] When pushing the corrected silicon steel sheet for feeding, the linear motion device 505 at the pushing chute 506 starts first and drives the corresponding sealing plate 504 to open the pushing chute 506. Subsequently, the pushing device 501 drives the pushing plate 502 to move until it abuts against the silicon steel sheet. Another linear motion device 505 drives the corresponding sealing plate 504 to open the discharging chute 503. The pushing device 501 starts again to drive the pushing plate 502 to push the silicon steel sheet into the welding limiting mechanism 3. When the pushing plate 502 resets, the two linear motion devices 505 drive the corresponding sealing plates 504 to close the pushing chute 506 and the discharging chute 503 respectively.

[0058] In this embodiment, the pushing device 501, the linear driving device 307, and the linear motion device 505 are all prior arts. As long as they can drive corresponding structures such as the sealing plate 504 to move linearly, the technical principle will not be elaborated here too much.

[0059] Furthermore, connecting bars are provided at the pushing chute 506, the discharging chute 503, and the connecting chute 305 to ensure the stability of the limiting plate 401 and the annular plate 303. Grooves slidably connected to the connecting bars are provided at the tops of the sealing plate 504 and the arc-shaped plate 306.

[0060] A telescopic device 6 that performs telescopic motion in the vertical direction is provided on the machine base 1, and a pressing plate 7 is provided at the bottom of the telescopic device 6.

[0061] The telescopic device 6 drives the pressing plate 7 to move downward until it contacts the uppermost silicon steel sheet, so as to limit the upward movement or flipping of the silicon steel sheet and ensure the stability of the silicon steel sheet during the correction posture process.

[0062] The above embodiments are only exemplary embodiments of the present application and are not used to limit the present application. The protection scope of the present application is defined by the claims. Those skilled in the art can make various modifications or equivalent replacements within the essence and protection scope of the present application, and such modifications or equivalent replacements should also be regarded as falling within the protection scope of the present application.

Claims

1. An automatic production device for a motor stator core, comprising a machine base (1), characterized in that, A welding mechanism (2), a welding limiting mechanism (3), a calibration mechanism (4) and a feeding pushing mechanism (5) are arranged on the machine base (1). The calibration mechanism (4) is used to adjust the postures of a plurality of stacked silicon steel sheets to be consistent. The feeding pushing mechanism (5) is used to push the plurality of silicon steel sheets with adjusted postures into the welding limiting mechanism (3), and fix the plurality of silicon steel sheets through the welding limiting mechanism (3). The welding mechanism (2) automatically welds the fixed plurality of silicon steel sheets; The calibration mechanism (4) includes a limiting plate (401) arranged in a ring shape on the machine base (1) and a lifting device (402) arranged on the machine base (1). A rotating device (403) is arranged at the top of the lifting device (402). An elastic limiting member (404) is arranged on the rotating device (403), and the elastic limiting member (404) fits against the circumferential outer wall of the silicon steel sheet after rotation; The elastic limiting member (404) includes a bottom plate (406) arranged on the rotating device (403). Two fixed sleeve groups are symmetrically arranged on the bottom plate (406). Each fixed sleeve group includes two fixed sleeves (407) arranged on the bottom plate (406). A limiting rod (408) is slidably sleeved in each fixed sleeve (407). A spring (409) connected to the bottom of the corresponding limiting rod (408) is arranged at the inner bottom of each fixed sleeve (407).

2. The automatic production equipment for the motor stator core according to claim 1, wherein A receiving groove (405) for receiving the lifting device (402) and the rotating device (403) is formed on the machine base (1). A rotating support structure for supporting the silicon steel sheet is arranged in the receiving groove (405).

3. The automatic production equipment for the motor stator core according to claim 1, characterized in that, Among them, The distance between the two fixed sleeves (407) on the same fixed sleeve group is not greater than the distance between the two fixed sleeve groups. The distance between the two opposite limiting rods (408) on the two fixed sleeve groups is equal to the maximum width of the silicon steel sheet.

4. The automatic production equipment for the motor stator core according to claim 1, wherein, Positioning protrusions (410) and a plurality of sliding grooves (411) are arranged on the inner side wall of the fixed sleeve (407). A plurality of sliding plates (412) are arranged on the side wall of the limiting rod (408), and the plurality of sliding plates (412) are respectively slidably connected in the corresponding sliding grooves (411). When the distance between the inner bottom of the fixed sleeve (407) and the bottom of the limiting rod (408) is the largest, the spring (409) is in a compressed deformation state. The distance between the top of the positioning protrusion (410) and the bottom of the limiting rod (408) is the same as the thickness of the silicon steel sheet.

5. The automatic production equipment for the motor stator core according to claim 4, characterized in that, An adjusting groove (413) is axially formed on the inner side wall of the fixed sleeve (407), and the positioning protrusion (410) is slidably connected in the adjusting groove (413). An adjusting screw rod (414) threadedly connected to the positioning protrusion (410) is rotatably connected in the adjusting groove (413), and the adjusting screw rod (414) is parallel to the axis of the fixed sleeve (407). The top of the adjusting screw rod (414) extends upward to the outside of the fixed sleeve (407) and is provided with a dial (415).

6. The automatic production equipment for the motor stator core according to claim 2, characterized in that, The rotating support structure includes a plurality of support plates (416) slidably connected to the inner wall of the circumferential side of the receiving groove (405) evenly, and the plurality of support plates (416) are respectively arranged along a plurality of radial directions of the receiving groove (405). The ends of the plurality of support plates (416) are commonly connected to a support shaft (417) coaxial with the limiting plate (401). A plurality of balls (418) are rotatably connected to the top of each support plate (416), and each limiting rod (408) is located between two adjacent support plates (416).

7. The automatic production equipment for the motor stator core according to claim 1, wherein The welding limiting mechanism (3) includes a rotating device (301) arranged on the machine base (1) and embedded in the top of the machine base (1), and the rotating direction of the rotating device (301) is perpendicular to the top of the machine base (1). A turntable (302) is arranged on the top of the rotating device (301). An annular plate (303) is arranged on the top of the turntable (302). A plurality of construction grooves (304) and a connecting groove (305) are evenly formed in the circumferential side of the annular plate (303). An arc-shaped plate (306) with the same inner and outer diameters as those of the annular plate (303) is slidably connected to the inner wall of the connecting groove (305). A linear driving device (307) connected to the outer wall of the arc-shaped plate (306) is arranged on the outer wall of the annular plate (303).

8. The automatic production equipment for the motor stator core according to claim 2, wherein, The feeding and pushing mechanism (5) includes a pushing device (501) arranged on the machine base (1), and a pushing plate (502) for pushing silicon steel sheets is arranged at one end of the pushing device (501); The limiting plate (401) is provided with a material pushing groove (506) and a discharging groove (503). Sealing plates (504) moving in the vertical direction are slidably connected to the inner walls of the material pushing groove (506) and the discharging groove (503), and the inner walls of the two sealing plates (504) are adapted to the inner wall of the limiting plate (401). Two linear motion devices (505) respectively connected to the two sealing plates (504) are arranged on the outer wall of the limiting plate (401).

9. The automatic production equipment for the motor stator core according to claim 1, characterized in that, A telescopic device (6) performing telescopic motion in the vertical direction is arranged on the machine base (1), and a pressing plate (7) is arranged at the bottom of the telescopic device (6).

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