Automatic punching device for positioning the outer circle of rotor punching

Abstract

The present invention discloses an automatic punching device for positioning the outer circle of a rotor punching sheet, which relates to the technical field of rotor punching sheet production, and comprises a base and a steel silicon sheet. A material placement table is arranged on the top of the base, and a through hole is opened on the top of the base corresponding to the material placement table. The bottom of the steel silicon sheet is arranged on the top of the material placement table, and a positioning clamping mechanism is symmetrically arranged on the top of the base. When producing rotor punching sheets, the automatic punching device for positioning the outer circle of a rotor punching sheet can, after placing the steel silicon sheet on the material placement table, drive the two clamping blocks to move inward synchronously during the process of the punching die head being driven down by a cylinder, so as to automatically position the steel silicon sheet, and can initially clamp and lock the steel silicon sheet after it is lowered to a certain extent. At the same time, when the punching die head contacts the steel silicon sheet, the pressure ring and the support block cooperate to clamp the steel silicon sheet again during punching, so as to avoid deviation of the punching position, thereby ensuring stability and accuracy during punching.

Description

Technical Field

[0001] The invention relates to the technical field of rotor punching sheet production, in particular to a rotor punching sheet outer circle positioning automatic punching device. Background Art

[0002] Rotor punching is a kind of parts with a very wide range of applications. It is widely used in stepper motors, AC and DC motors, reduction motors, outer rotor motors, shaded pole motors, synchronous asynchronous motors, etc. For finished motors, rotor punching plays a key role in motor accessories. Its material, inner circle size, outer circle size, slot size, etc. have a direct impact on the energy consumption, working efficiency, noise and service life of the motor.

[0003] In the process of producing rotor punching sheets, it is generally necessary to punch out the steel silicon sheets through a punching device, and then the steel silicon sheets are punched into the required size and shape, and then a plurality of punched steel silicon sheets are stacked and mechanically solidified to finally obtain the stacked rotor punching sheets. For example, a rotor punching sheet manufacturing process with publication number CN109378947A can be used. It can be seen that this process can reduce the offset of the punching sheet during the processing by first punching out the through-axis hole and then punching out based on the through-axis hole, thereby improving the processing accuracy of the stator and rotor punching sheets and reducing the eccentric inertia of the rotor when the motor is started, thereby achieving the purpose of reducing the vibration intensity during the motor startup process.

[0004] When punching the silicon steel sheet, it is usually placed manually in a punching die, and then punched by a punching device, so that the silicon steel sheet cannot be effectively positioned in the punching die, which can easily cause deviations in the punching position. At the same time, after punching, burrs will appear on the surface of the silicon steel sheet. In order to avoid gaps caused by the burrs during subsequent stacking, secondary grinding is required after taking it out, which affects work efficiency. Summary of the invention

[0005] The object of the present invention is to provide a rotor punching sheet outer circle positioning automatic punching device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a rotor punching sheet outer circle positioning automatic punching device, comprising a base, a steel silicon sheet, a material placement table is arranged on the top of the base, and a through hole is opened on the top of the base corresponding to the material placement table, the bottom of the steel silicon sheet is arranged on the top of the material placement table, a positioning clamping mechanism is symmetrically arranged on the top of the base, and a processing table is fixedly connected to the top of the base, a cylinder is fixedly installed on the top of the processing table, and a punching assembly is arranged on an output rod at one end of the cylinder;

[0007] The cylinder is driven by the punching assembly, and the punching assembly is driven by the positioning and clamping mechanism, so that when punching is performed, the cylinder is used to control the two positioning and clamping mechanisms to automatically position and clamp the steel silicon sheet;

[0008] A burr removal mechanism is disposed on one side wall of the processing table, and the burr removal mechanism is in transmission with the material placement table, so that after the punching is completed, the burr removal mechanism is used to remove the burrs of the steel silicon sheet.

[0009] Preferably, the positioning and clamping mechanism comprises a support frame, the bottoms of the two support frames are fixedly connected to the top of the base, a slide groove is provided on the side where the two support frames are close to each other, and a pressure rod is provided on the inner wall of the slide groove, one end of the pressure rod slides in contact with the inner wall of the slide groove, and the other end of the pressure rod is inclined;

[0010] The punching assembly includes a punching die head, and the top of the punching die head is fixed to an output rod at one end of the cylinder, a pressure ring is provided on the outer wall of the punching die head, and a die groove is penetrated through the top of the pressure ring, the outer wall of the punching die head and the inner wall of the die groove fit and slide, a fourth spring is fixedly connected to the top of the pressure ring, and the other end of the fourth spring is fixed to an output rod at one end of the cylinder.

[0011] Preferably, the two pressure rods are fixedly connected with a connecting block toward one side wall of the processing table, and a connecting rod is provided on the outer wall of the connecting block, a limiting groove is provided on one side wall of the connecting rod corresponding to the connecting block, and the outer wall of the connecting block slides in fit with the inner wall of the limiting groove, the two connecting rods are fixedly connected with a gear rod at one end away from each other, and a fixing rod is slidably connected inside the gear rod, and the bottom of the fixing rod is fixedly connected to the top of the base.

[0012] Preferably, a first spring is fitted on the outer wall of the fixing rod, one end of the first spring is fixedly connected to the top of the base, and the other end of the first spring is fixedly connected to the bottom of the gear rod, and a rotating rod is rotatably connected inside the support frame, and a gear is fixedly connected to the outer wall of one end of the two rotating rods that are away from each other, and the teeth of the gear are meshed with a side wall of the gear rod.

[0013] Preferably, the outer wall of the rotating rod is threadedly connected to a support block, a side wall of the two support frames that are close to each other is fixedly connected to a support plate, and the top of the support plate slides in contact with the bottom of the support block, and a clamping block is provided on the top of the support block, and the clamping block is V-shaped.

[0014] Preferably, a first sliding column is fixedly connected to one side of the two clamping blocks away from each other, a connecting cross bar is fixedly connected to the top of the support block, an outer wall of the first sliding column slides in fit with the inside of the connecting cross bar, and a second spring is provided in fit with the outer wall of the first sliding column, one end of the second spring is fixedly connected to one side wall of the connecting cross bar, and the other end of the second spring is fixedly connected to one side wall of the clamping block.

[0015] Preferably, a through groove is formed on one side wall of the two support frames which are away from each other, and the inner wall of the through groove is connected to the inner wall of the slide groove. A fixing column is fixedly connected to the inner wall of the through groove, and a fixing hole is formed on the top of the pressure rod corresponding to the fixing column.

[0016] Preferably, a third spring is fixedly connected to the inner wall of the limiting groove, and the other end of the third spring is fixedly connected to a side wall away from the two connecting blocks, and a side wall close to the two supporting frames is provided with a groove corresponding to the thorn removal mechanism.

[0017] Preferably, the thorn removal mechanism includes a push plate, and a connecting column is arranged inside the push plate, the outer walls of the two connecting columns slide in fit with the inside of the push plate, the same end of the two connecting columns is fixed to a side wall of the processing table, the outer wall of the connecting column is fitted with a fifth spring, and one end of the fifth spring is fixedly connected to a side wall of the push plate away from the loading table, and the other end of the fifth spring is fixedly connected to a side wall of the processing table.

[0018] Preferably, a positioning block is fixedly connected to one side wall of the loading platform facing the push plate, and a positioning rod is fixedly connected to the top of the positioning block, a positioning groove is provided at the bottom of the push plate corresponding to the positioning rod, and a fixing plate is fixedly connected to the two side walls of the loading platform, and the outer wall of the fixing plate slides in contact with the inner wall of the groove, a sixth spring is fixedly connected to the bottom of the fixing plate, and the other end of the sixth spring is fixedly connected to the inner wall of the groove.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. When producing rotor punching sheets, after placing the steel silicon sheet on the loading table, the cylinder drives the punching die head to descend, driving the two clamping blocks to move inward synchronously, automatically positioning the steel silicon sheet, and being able to initially clamp and lock the steel silicon sheet after it descends to a certain degree. At the same time, when the punching die head contacts the steel silicon sheet, the pressure ring and the support block cooperate to clamp it again during punching, avoiding deviation of the punching position, thereby ensuring stability and accuracy during punching.

[0021] 2. When producing rotor punching sheets, the punching die head can be used to drive the loading table to descend during punching, thereby unlocking the restriction on the push plate, so that when it rises after punching, the push plate can quickly remove the burrs formed after punching the steel silicon sheet, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 3 It is a bottom view structural schematic diagram of a partial structure of the whole of the present invention;

[0025] Figure 4 It is a structural schematic diagram of the blanking assembly of the present invention;

[0026] Figure 5 It is a structural schematic diagram of the first part of the positioning and clamping mechanism of the present invention;

[0027] Figure 6 It is a structural schematic diagram of the second part of the positioning and clamping mechanism of the present invention;

[0028] Figure 7 It is a structural schematic diagram of the third part of the positioning and clamping mechanism of the present invention;

[0029] Figure 8 It is a structural schematic diagram of the thorn removal mechanism of the present invention.

[0030] In the figure: 1, base; 2, material placement table; 4, processing table; 5, cylinder; 8, steel silicon wafer; 3, positioning and clamping mechanism; 301, support frame; 302, slide groove; 303, pressure rod; 304, connecting block; 305, connecting rod; 306, limit groove; 307, gear rod; 308, fixing rod; 309, first spring; 310, rotating rod; 311, gear; 312, support block; 313, support plate; 314, clamping block; 315, first sliding column; 316, connecting Cross bar; 317, second spring; 318, through slot; 319, fixed column; 320, fixed hole; 321, third spring; 322, groove; 6, punching assembly; 601, punching die head; 602, pressure ring; 603, die groove; 604, fourth spring; 7, burr removal mechanism; 701, push plate; 702, connecting column; 703, fifth spring; 704, positioning block; 705, positioning rod; 706, positioning slot; 707, fixed plate; 708, sixth spring. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] For example, see Figure 1-8 The present invention provides a technical solution: a rotor punching sheet outer circle positioning automatic punching device, comprising a base 1, a steel silicon sheet 8, a material placement table 2 is arranged on the top of the base 1, and a through hole is opened on the top of the base 1 corresponding to the material placement table 2, and the bottom of the steel silicon sheet 8 is arranged on the top of the material placement table 2, and then a positioning clamping mechanism 3 is symmetrically arranged on the top of the base 1, and a processing table 4 is fixedly connected to the top of the base 1, and a cylinder 5 is fixedly installed on the top of the processing table 4, and a punching assembly 6 is arranged on an output rod at one end of the cylinder 5;

[0033] The cylinder 5 is driven by the punching assembly 6, and the punching assembly 6 is driven by the positioning and clamping mechanism 3, so that when punching is performed, the cylinder 5 is used to control the two positioning and clamping mechanisms 3 to automatically position and clamp the steel silicon sheet 8;

[0034] Furthermore, the positioning and clamping mechanism 3 includes a support frame 301, the bottoms of the two support frames 301 are fixedly connected to the top of the base 1, and a slide groove 302 is provided on the side where the two support frames 301 are close to each other, and a pressure rod 303 is provided on the inner wall of the slide groove 302, and one end of the pressure rod 303 slides in contact with the inner wall of the slide groove 302, and the other end of the pressure rod 303 is in an inclined shape;

[0035] In this embodiment, when the steel silicon sheet 8 needs to be punched, the steel silicon sheet 8 is first placed on the top of the loading platform 2, and then the cylinder 5 is started, and the top of the punching die 601 is fixed to the output rod at one end of the cylinder 5, and the outer wall of the punching die 601 is provided with a pressure ring 602, so that the punching die 601 and the pressure ring 602 can be driven by the cylinder 5 to descend, and then during the descent process, the outer wall of the pressure ring 602 will contact the tops of the two pressure rods 303, and the pressure rod 303 is provided through the inner wall of the slide groove 302, and one end of the pressure rod 303 slides in contact with the inner wall of the slide groove 302, so that the two pressure rods 303 can be driven to descend synchronously;

[0036] Then, the two pressure rods 303 are fixedly connected to a connecting block 304 on one side wall facing the processing table 4, and a connecting rod 305 is provided on the outer wall of the connecting block 304, and a gear rod 307 is fixedly connected to one end of the two connecting rods 305 away from each other, and a fixing rod 308 is slidably connected to the inside of the gear rod 307, and the bottom of the fixing rod 308 is fixedly connected to the top of the base 1, so that the connecting rod 305 can be driven to descend through the connecting block 304, and then the two gear rods 307 can be driven to descend synchronously;

[0037] Then, a rotating rod 310 is connected through the internal rotation of the support frame 301, and a gear 311 is fixedly connected to the outer wall of one end of the two rotating rods 310 that is away from each other, and the gear teeth of the gear 311 mesh with a side wall of the gear rod 307, so that the gear 311 can be driven to rotate by the descent of the gear rod 307, thereby driving the rotating rod 310 to rotate, and then the outer wall of the rotating rod 310 is threadedly connected to a supporting block 312, and a supporting plate 313 is fixedly connected to the side wall of the two supporting frames 301 that are close to each other, and the top of the supporting plate 313 is fitted and slid with the bottom of the supporting block 312, and at the same time, a clamping block 314 is provided on the top of the supporting block 312, and the clamping block 314 is V-shaped, so that the supporting block 312 can be limited by the supporting plate 313, so that when the two rotating rods 310 rotate, the two supporting blocks 312 can be driven to approach each other synchronously by the threads, and then the steel silicon sheet 8 can be pushed and adjusted by the two clamping blocks 314 to automatically position it;

[0038] Then, when the positioning is completed, the two gear rods 307 continue to descend, and at this time, the first slide column 315 is fixedly connected to the side away from the two clamping blocks 314, and the top of the support block 312 is fixedly connected to the connecting cross bar 316, and the outer wall of the first slide column 315 is fitted and slid with the inside of the connecting cross bar 316, and at the same time, the outer wall of the first slide column 315 is fitted with a second spring 317, and one end of the second spring 317 is fixedly connected to a side wall of the connecting cross bar 316, and the other end of the second spring 317 is fixedly connected to a side wall of the clamping block 314, so that when the two support blocks 312 continue to approach each other synchronously, the second spring 317 can be squeezed, so that the second spring 317 can be used to preliminarily clamp the steel silicon sheet 8 located between the two clamping blocks 314;

[0039] Then, when the pressure rod 303 moves down to the lowest point along the slide groove 302, the other end of the pressure rod 303 is in the shape of an inclined surface, and a through groove 318 is provided on one side wall of the two support frames 301 that are away from each other, and the inner wall of the through groove 318 is connected to the inner wall of the slide groove 302, so that when the pressure rod 303 cannot continue to descend, at this time, under the guidance of the inclined surface, the two pressure rods 303 move away from each other, that is, slide into the through groove 318;

[0040] At this time, a fixing column 319 is fixedly connected through the inner wall of the through groove 318, and a fixing hole 320 is opened at the top of the pressure rod 303 corresponding to the fixing column 319, and a first spring 309 is fitted on the outer wall of the fixing rod 308, and one end of the first spring 309 is fixedly connected to the top of the base 1, and the other end of the first spring 309 is fixedly connected to the bottom of the gear rod 307, so that when the pressure rod 303 moves downward, the first spring 309 will be compressed, that is, there is always an upward force in the process of the two pressure rods 303 sliding into the through groove 318, so that when the tops of the two pressure rods 303 are out of contact with the bottom edge of the pressure ring 602, under the action of the first spring 309, the pressure rod 303 will be connected to the fixing column 319 through the fixing hole 320, completing the preliminary clamping and locking of the steel silicon sheet 8;

[0041] Then, driven by the cylinder 5, the punching die 601 and the pressure ring 602 continue to descend. When the punching die 601 and the pressure ring 602 contact the upper surface of the steel silicon sheet 8, a die groove 603 is provided through the top of the pressure ring 602, and the outer wall of the punching die 601 and the inner wall of the die groove 603 slide in contact with each other, and the top of the pressure ring 602 is fixedly connected with a fourth spring 604, and the other end of the fourth spring 604 is fixed to an output rod at one end of the cylinder 5. Therefore, when the punching die 601 punches the steel silicon sheet 8, the pressure ring 602 can, under the action of the fourth spring 604, contact the upper surface of the steel silicon sheet 8, so that it can cooperate with the support block 312 and be further clamped during the punching process.

[0042] As described above, when producing rotor punching sheets, after the steel silicon sheet 8 is placed on the loading table 2, the cylinder 5 drives the punching die 601 to descend, driving the two clamping blocks 314 to move inward synchronously, automatically positioning the steel silicon sheet 8, and being able to initially clamp and lock the steel silicon sheet 8 after descending to a certain extent. At the same time, when the punching die 601 contacts the steel silicon sheet 8, the pressure ring 602 cooperates with the support block 312 to clamp it again during punching, avoiding deviation of the punching position, thereby ensuring stability and accuracy during punching.

[0043] Embodiment 2, on the basis of the above embodiment, a burr removal mechanism 7 is provided on one side wall of the processing table 4, and the burr removal mechanism 7 is in transmission with the material placement table 2, so that after the punching is completed, the burr removal mechanism 7 is used to remove the burrs of the steel silicon sheet 8;

[0044] Furthermore, the thorn removal mechanism 7 includes a push plate 701, and a connecting column 702 is arranged inside the push plate 701, and the outer walls of the two connecting columns 702 slide in contact with the inside of the push plate 701, and then the same end of the two connecting columns 702 is fixed to a side wall of the processing table 4, and the outer wall of the connecting column 702 is fitted with a fifth spring 703, and one end of the fifth spring 703 is fixedly connected to a side wall of the push plate 701 away from the material loading table 2, and the other end of the fifth spring 703 is fixedly connected to a side wall of the processing table 4;

[0045] In this embodiment, a through hole is opened through the top of the base 1 corresponding to the material placement table 2, and the two side walls of the material placement table 2 are fixedly connected with a fixing plate 707, and the outer wall of the fixing plate 707 slides in contact with the inner wall of the groove 322, and at the same time, a sixth spring 708 is fixedly connected to the bottom of the fixing plate 707, and the other end of the sixth spring 708 is fixedly connected to the inner wall of the groove 322, so that the sixth spring 708 and the fixing plate 707 can be used to support the material placement table 2, and when the punching die 601 is lowered for punching, the material placement table 2 can be driven to move downward synchronously and the sixth spring 708 can be compressed;

[0046] When the tool 701 is in a state of being moved downwardly, the fifth spring 703 is in a state of being compressed, and the tool 701 is in a state of being moved downwardly. The connection of the positioning slot 706 makes the push plate 701 move towards the punching die head 601 under the drive of the fifth spring 703. At this time, the push plate 701 first moves a distance until it contacts the punching die head 601, so that the positioning rod 705 is separated from the position of the positioning slot 706. At this time, the punching die head 601 starts to move up and reset. Since the positioning rod 705 is separated from the position of the positioning slot 706, the top of the positioning rod 705 will contact the bottom of the push plate 701 under the drive of the sixth spring 708. When the punching die head 601 moves up to a certain distance, the punching die head 601 will no longer block the push plate 701, so that the push plate 701 can quickly remove the burrs formed on the bottom of the steel silicon sheet 8 after punching;

[0047] When the punching die 601 moves up to its original position, the pressure rod 303 is manually moved down to disengage the fixing hole 320 from the fixing column 319, and the pressure rod 303 is pushed to move in a direction close to each other until it is out of the range of the through slot 318. During this process, a third spring 321 is fixedly connected to the inner wall of the limiting slot 306, and the other end of the third spring 321 is fixedly connected to a side wall away from the two connecting blocks 304, so that the rebound of the third spring 321 can reduce the pressure on the pressure rod 303 The difficulty of resetting is that after the pressure rod 303 is separated from the through slot 318, it is driven to move upward under the rebound of the first spring 309 to complete the resetting, and then the steel silicon sheet 8 after the punching can be removed, and then the push plate 701 is pushed to compress the fifth spring 703 again. When compressed to a certain distance, the position of the positioning rod 705 and the positioning slot 706 are relatively aligned. Driven by the sixth spring 708, the positioning rod 705 will be automatically inserted into the positioning slot 706 to complete the resetting, and then the next punching can be carried out;

[0048] As described above, when producing rotor punching sheets, the punching die 601 can be used to drive the loading table 2 to descend during punching, thereby unlocking the restriction on the push plate 701, so that when it rises after the punching is completed, the burrs formed after the steel silicon sheet 8 is punched can be quickly removed by the push plate 701, thereby improving work efficiency.

[0049] Working principle: First, place the steel silicon sheet 8 on the top of the material placement table 2, then start the cylinder 5 to drive the punching die 601 and the pressure ring 602 to descend, and then during the descent, the outer wall of the pressure ring 602 will contact the top of the two pressure rods 303, driving the two pressure rods 303 to descend synchronously, so that the connecting rod 305 can be driven to descend through the connecting block 304, and then the two gear rods 307 are driven to descend synchronously to drive the rotating rod 310 to rotate;

[0050] Thus, the support block 312 can be limited by the support plate 313, so that when the two rotating rods 310 rotate, the two support blocks 312 can be driven to approach each other synchronously through the threads, and then the steel silicon sheet 8 can be pushed and adjusted by the two clamping blocks 314 to automatically position;

[0051] When the positioning is completed, the two gear rods 307 continue to descend, and when the two support blocks 312 continue to approach each other synchronously, the second spring 317 is squeezed, so that the second spring 317 can be used to initially clamp the steel silicon sheet 8 located between the two clamping blocks 314. When the pressure rod 303 cannot continue to descend, under the guidance of the inclined surface, the two pressure rods 303 move away from each other, that is, slide into the through groove 318. In the process of the two pressure rods 303 sliding into the through groove 318, there is always an upward force, so that when the tops of the two pressure rods 303 are out of contact with the bottom edge of the pressure ring 602, under the action of the first spring 309, the pressure rod 303 will be connected to the fixing column 319 through the fixing hole 320, completing the initial clamping and locking of the steel silicon sheet 8;

[0052] Then, driven by the cylinder 5, the punching die 601 and the pressure ring 602 continue to descend. When the punching die 601 punches the steel silicon sheet 8, the pressure ring 602 can contact the upper surface of the steel silicon sheet 8 under the action of the fourth spring 604, so as to cooperate with the support block 312 to further clamp it during the punching process.

[0053] When the punching die 601 is descending for punching, it can synchronously drive the material loading platform 2 to move downward, so that the positioning rod 705 is disconnected from the positioning groove 706. At this time, the push plate 701 first moves a distance until it contacts the punching die 601, so that the positioning rod 705 is separated from the position of the positioning groove 706. At this time, the top of the positioning rod 705 will contact the bottom of the push plate 701 under the drive of the sixth spring 708. When the punching die 601 moves up to a certain distance, the punching die 601 will no longer block the push plate 701, so that the push plate 701 can quickly remove the burrs formed on the bottom of the steel silicon sheet 8 after punching;

[0054] After the punching die 601 moves up to its original position, the pressure rod 303 is manually moved down to disengage the fixing hole 320 from the fixing column 319, and the pressure rod 303 is pushed to move in a direction approaching each other until it is out of the range of the through slot 318. After being out of the range of the through slot 318, the pressure rod 303 is driven to move up under the rebound of the first spring 309 to complete the reset. Then the steel silicon sheet 8 after the punching can be removed, and then the push plate 701 is pushed to compress the fifth spring 703 again. When compressed to a certain distance, the position of the positioning rod 705 is aligned with the positioning slot 706. Driven by the sixth spring 708, the positioning rod 705 will be automatically inserted into the positioning slot 706 to complete the reset. At this time, the next punching can be carried out.

[0055] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rotor punching sheet outer circle positioning automatic punching device, comprising a base (1) and a steel silicon sheet (8), characterized in that: A material placement table (2) is arranged on the top of the base (1), and a through hole is opened on the top of the base (1) corresponding to the material placement table (2), the bottom of the steel silicon sheet (8) is arranged on the top of the material placement table (2), a positioning clamping mechanism (3) is symmetrically arranged on the top of the base (1), and a processing table (4) is fixedly connected to the top of the base (1), a cylinder (5) is fixedly installed on the top of the processing table (4), and a punching assembly (6) is arranged on an output rod at one end of the cylinder (5); The cylinder (5) is in transmission with the punching assembly (6), and the punching assembly (6) is in transmission with the positioning and clamping mechanism (3), so that when punching is performed, the cylinder (5) is used to control the two positioning and clamping mechanisms (3) to automatically position and clamp the steel silicon sheet (8); A burr removal mechanism (7) is provided on one side wall of the processing table (4), and the burr removal mechanism (7) is in transmission with the material placement table (2), so that after the punching is completed, the burr removal mechanism (7) is used to remove the burrs of the steel silicon sheet (8); The positioning and clamping mechanism (3) comprises a support frame (301), the bottoms of the two support frames (301) are fixedly connected to the top of the base (1), a sliding groove (302) is provided on the side where the two support frames (301) are close to each other, and a pressure rod (303) is provided on the inner wall of the sliding groove (302), one end of the pressure rod (303) is slidably fitted with the inner wall of the sliding groove (302), and the other end of the pressure rod (303) is in the shape of an inclined surface; The punching assembly (6) comprises a punching die head (601), and the top of the punching die head (601) is fixed to an output rod at one end of the cylinder (5); a pressure ring (602) is provided on the outer wall of the punching die head (601), and a die groove (603) is penetrated through the top of the pressure ring (602); the outer wall of the punching die head (601) and the inner wall of the die groove (603) are fitted and slid together; a fourth spring (604) is fixedly connected to the top of the pressure ring (602), and the other end of the fourth spring (604) is fixed to an output rod at one end of the cylinder (5); The two pressing rods (303) are fixedly connected to a connecting block (304) on one side wall facing the processing table (4), and a connecting rod (305) is provided on the outer wall of the connecting block (304), a limiting groove (306) is provided on one side wall of the connecting rod (305) corresponding to the connecting block (304), and the outer wall of the connecting block (304) and the inner wall of the limiting groove (306) are fitted and slidably connected, and the ends of the two connecting rods (305) that are away from each other are fixedly connected to a gear rod (307), and the interior of the gear rod (307) is slidably connected to a fixing rod (308), and the bottom of the fixing rod (308) is fixedly connected to the top of the base (1); A first spring (309) is fitted on the outer wall of the fixed rod (308), one end of the first spring (309) is fixedly connected to the top of the base (1), and the other end of the first spring (309) is fixedly connected to the bottom of the gear rod (307); a rotating rod (310) is rotatably connected inside the support frame (301), and a gear (311) is fixedly connected to the outer wall of one end of the two rotating rods (310) that are away from each other, and the gear teeth of the gear (311) are meshed with a side wall of the gear rod (307); A third spring (321) is fixedly connected to the inner wall of the limiting groove (306), and the other end of the third spring (321) is fixedly connected to a side wall of the two connecting blocks (304) that is away from each other, and a groove (322) is provided on a side wall of the two supporting frames (301) that is close to each other and corresponds to the thorn removal mechanism (7); The thorn removal mechanism (7) comprises a push plate (701), and a connecting column (702) is arranged inside the push plate (701), the outer walls of the two connecting columns (702) are fitted and slid with the inside of the push plate (701), the same end of the two connecting columns (702) is fixed to a side wall of the processing table (4), the outer wall of the connecting column (702) is fitted with a fifth spring (703), and one end of the fifth spring (703) is fixedly connected to a side wall of the push plate (701) away from the material placement table (2), and the other end of the fifth spring (703) is fixedly connected to a side wall of the processing table (4); The outer wall of the rotating rod (310) is threadedly connected to a support block (312); a support plate (313) is fixedly connected to a side wall of the two support frames (301) that is close to each other; the top of the support plate (313) slides in contact with the bottom of the support block (312); a clamping block (314) is provided on the top of the support block (312); and the clamping block (314) is V-shaped; A first sliding column (315) is fixedly connected to a side of the two clamping blocks (314) that is away from each other, a connecting cross bar (316) is fixedly connected to the top of the support block (312), an outer wall of the first sliding column (315) slides in contact with the inside of the connecting cross bar (316), and a second spring (317) is provided in contact with the outer wall of the first sliding column (315).

2. The rotor punching sheet outer circle positioning automatic punching device according to claim 1 is characterized in that: One end of the second spring (317) is fixedly connected to a side wall of the connecting cross bar (316), and the other end of the second spring (317) is fixedly connected to a side wall of the clamping block (314).

3. The rotor punching sheet outer circle positioning automatic punching device according to claim 2 is characterized in that: A through slot (318) is provided on one side wall of the two support frames (301) that is away from each other, and the inner wall of the through slot (318) is connected to the inner wall of the slide slot (302).

4. The rotor punching sheet outer circle positioning automatic punching device according to claim 3 is characterized in that: A fixing column (319) is fixedly connected to the inner wall of the through groove (318), and a fixing hole (320) is provided at the top of the pressure rod (303) corresponding to the fixing column (319).

5. The rotor punching sheet outer circle positioning automatic punching device according to claim 4 is characterized in that: A positioning block (704) is fixedly connected to a side wall of the material placement platform (2) facing the push plate (701), and a positioning rod (705) is fixedly connected to the top of the positioning block (704). A positioning groove (706) is provided at the bottom of the push plate (701) corresponding to the positioning rod (705).

6. The rotor punching sheet outer circle positioning automatic punching device according to claim 5, characterized in that: The two side walls of the material placement table (2) are fixedly connected with a fixing plate (707), and the outer wall of the fixing plate (707) slides in contact with the inner wall of the groove (322); the bottom of the fixing plate (707) is fixedly connected with a sixth spring (708), and the other end of the sixth spring (708) is fixedly connected to the inner wall of the groove (322).

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