Stamping and overlapping riveting die for magnetic core

Abstract

The utility model discloses a magnetic core stamping stack-riveting die in the field of stack-riveting dies, which comprises a first mounting plate, limiting rods are fixed at four corners of the upper surface of the first mounting plate, a moving plate is slidably mounted among the outer sides of the limiting rods along the vertical direction, and a pressing plate is fixed in the middle of the lower surface of the moving plate. A first stamping block is mounted in the middle of one end of the lower surface of the pressing plate, a plurality of buckle stamping blocks are fixed to the middle of the lower surface of the pressing plate at intervals, an output rod of the second hydraulic cylinder faces upwards and is fixedly provided with a first push plate, and a second push plate is slidably mounted in the middle of the end, close to the first stamping hole, of the lower surface of the first mounting plate in the horizontal direction. According to the stamping and stacking-riveting die, discharging of the stamped and stacked-riveted magnetic cores is facilitated, the working efficiency of discharging of the stamped and stacked-riveted magnetic cores is guaranteed, stamping and stacking-riveting machining of the magnetic cores is facilitated, and the stamping and stacking-riveting die can be used conveniently.

Description

Technical Field

[0001] The utility model relates to the field of stack riveting dies, in particular to a stamping stack riveting die for a magnetic core. Background Art

[0002] A magnetic core refers to a sintered magnetic metal oxide composed of a mixture of various iron oxides. Stamping processing is a production technology that uses the power of conventional or special stamping equipment to directly subject the sheet material to deformation force in the mold and deform it, thereby obtaining product parts of a certain shape, size and performance. Stack riveting is a technology that stacks two or more cores together and fixes the cores together by rivets or crimping.

[0003] Moulds refer to various moulds and tools used in industrial production to obtain the required products by injection molding, blow molding, extrusion, die casting or forging, smelting, stamping and other methods. When processing the magnetic core, it is necessary to use a stamping and riveting mould to perform stamping and riveting on the magnetic core. The stamping and riveting mould refers to the tool used for stamping and riveting the magnetic core.

[0004] However, when the existing stamping and riveting mold is used, it is not conducive to discharging the magnetic core after stamping and riveting, which will affect the work efficiency of discharging the magnetic core after stamping and riveting, is not conducive to stamping and riveting the magnetic core, and is not convenient for using the stamping and riveting mold.

[0005] Therefore, we propose a stamping and riveting die for a magnetic core. Utility Model Content

[0006] The utility model aims to provide a stamping and riveting die for a magnetic core to solve the problems raised in the above-mentioned background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] The cam is provided with a plurality of locking plates, the locking plates being arranged on the cam face and the locking plates being arranged on the cam face.

[0009] As a further solution of the utility model: a second stamping block is fixed to the middle of the lower surface of the pressure plate away from one end of the first stamping block, a matching second stamping hole is opened in the middle of the first mounting plate near one end of the second stamping block corresponding to the second stamping block, the second stamping hole penetrates the upper surface and the lower surface of the middle of one end of the first mounting plate near the second stamping hole, the second stamping hole is located below the second stamping block, a retaining groove is opened in the middle of the upper surface of the first mounting plate, the retaining groove penetrates the middle of the upper side of the two end surfaces of the first mounting plate, the first stamping hole penetrates the upper surface and the lower surface of the middle of one end of the first mounting plate near the first stamping hole, and the first stamping hole is located below the first stamping block.

[0010] By adopting the above technical solution: the setting of the pressing plate can fix and limit the second punching block.

[0011] As a further solution of the utility model: the second hydraulic cylinder is in a vertical state, the outer surface of the first push plate and the inner surface of the corresponding position in the first stamping hole on the first mounting plate are matched, the first push plate is located below the first stamping hole on the first mounting plate, and a third hydraulic cylinder is installed on the side of the middle part of the lower surface of the first mounting plate close to the first stamping hole. The third hydraulic cylinder is in a horizontal state, and the output rod of the third hydraulic cylinder faces the second push plate, and the output rod of the third hydraulic cylinder is fixedly connected to the middle part of the opposite surface of the second push plate.

[0012] By adopting the above technical solution: the provision of the third hydraulic cylinder helps to drive the second push plate to move.

[0013] As a further solution of the utility model: the conveying mechanism includes a first rotating roller, and the middle parts of both ends of the first rotating roller are rotatably connected with the corresponding positions at the bottom of the opposite surface of the first fixed plate through a rotating shaft and a bearing, and the first conveying belt is jointly sleeved and installed on the outer side of the first rotating roller, and a rotating motor is installed on the rotating shaft of one end of the first rotating roller corresponding to the end of the first rotating roller at the bottom of the surface of the first fixed plate on one side away from the middle of the first mounting plate away from the first rotating roller.

[0014] By adopting the above technical solution: the provision of the first fixing plate can fix and limit the rotating motor.

[0015] As a further solution of the utility model: the output shaft of the rotating motor faces the rotating shaft at the opposite end of the first rotating roller and is fixedly connected to the rotating shaft at the opposite end of the first rotating roller, and the second fixed plates are fixed on both sides of the lower surface of the first mounting plate away from one end of the first fixed plate, and the second rotating rollers are rotatably mounted on both ends of the bottom of the opposite surface of the second fixed plate through bearings and rotating shafts.

[0016] By adopting the above technical solution: the provision of the rotating motor helps to drive the first rotating roller to rotate.

[0017] As a further solution of the utility model: a second conveying belt is jointly sleeved and installed between the outer sides of the second rotating rollers, a first gear is fixed to the end of the rotating shaft at both ends of the first rotating roller close to the second rotating roller and away from the first rotating roller, and a second gear is fixed to the end of the rotating shaft at both ends of the second rotating roller close to the first rotating roller and away from the second rotating roller, and the first gear and the second gear located on the same side are in a matching meshing state.

[0018] By adopting the above technical solution: the provision of the first gear and the second gear helps to link the first rotating roller with the second rotating roller.

[0019] As a further solution of the utility model: a horizontal support frame is commonly fixed between the lower surfaces of the first fixed plate and the second fixed plate, support legs are fixed to the four corners of the lower surface of the support frame, and a horizontal second mounting plate is commonly fixed between the upper end surfaces of the limit rods.

[0020] By adopting the above technical solution: the setting of the supporting legs can support and limit the support frame, which is convenient for stable use of the support frame.

[0021] As a further solution of the utility model: a first hydraulic cylinder is installed in the middle of the upper surface of the second mounting plate, the output rod of the first hydraulic cylinder faces downward and passes through the upper and lower surfaces in the middle of the second mounting plate, and the output rod of the first hydraulic cylinder is fixedly connected to the middle of the upper surface of the movable plate.

[0022] By adopting the above technical solution: the provision of the first hydraulic cylinder helps to drive the movable plate to move.

[0023] Compared with the prior art, the beneficial effects of the utility model are:

[0024] 1. In the utility model, the first punching block can feed the punched magnetic core metal sheet into the first push plate in the first punching hole through the first punching hole, and the punched magnetic core metal sheet will be riveted with the magnetic core metal sheet on the lower side through the buckle. When the second push plate moves, it can push the riveted magnetic core on the first push plate, which helps to discharge the punched and riveted magnetic core when in use, so as to ensure the work efficiency of discharging the punched and riveted magnetic core, and helps to perform punching and riveting processing on the magnetic core, so as to use the punching and riveting mold.

[0025] 2. In the utility model, the first hydraulic cylinder drives the movable plate, the pressure plate, the first punching block, the second punching block and the buckle punching block to move downward, so that the buckle punching block punches the metal plate of the magnetic core raw material, and the buckle punching block and the buckle punching groove can punch and buckle the metal plate of the magnetic core raw material. When the first rotating roller rotates, it can drive the first gear to rotate through the rotating shaft. When the first gear rotates, it can drive the matching meshing second gear to rotate. When the second gear rotates, it can drive the second rotating roller to rotate through the rotating shaft, so that the first rotating roller and the second rotating roller rotate in opposite directions. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of the utility model;

[0027] Figure 2 This is a schematic diagram of the first fixing plate structure of the utility model;

[0028] Figure 3 This is a schematic diagram of the structure of the movable plate of the utility model;

[0029] Figure 4 It is a schematic diagram of the structure of the second fixing plate of the utility model.

[0030] In the figure: 1. first mounting plate; 2. second mounting plate; 3. retention groove; 4. limiting rod; 5. movable plate; 6. pressing plate; 7. first punching block; 8. second punching block; 9. first punching hole; 10. second punching hole; 11. buckle punching block; 12. buckle punching groove; 13. first fixed plate; 14. second fixed plate; 15. first rotating roller; 16. second rotating roller; 17. first conveyor belt; 18. second conveyor belt; 19. supporting plate; 20. first hydraulic cylinder; 21. second hydraulic cylinder; 22. third hydraulic cylinder; 23. first push plate; 24. second push plate; 25. supporting frame; 26. supporting leg; 27. first gear; 28. second gear; 29. ​​rotating motor. DETAILED DESCRIPTION

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

[0032] See also Figures 1 to 4In the embodiment of the utility model, a stamping and riveting die for a magnetic core includes a first mounting plate 1, and the four corners of the upper surface of the first mounting plate 1 are fixed with limit rods 4, and a movable plate 5 is slidably installed between the outer sides of the limit rods 4 in the vertical direction, and a pressing plate 6 is fixed in the middle of the lower surface of the movable plate 5, and a first stamping block 7 is installed in the middle of one end of the lower surface of the pressing plate 6, and a first stamping hole 9 is opened in the middle of the first mounting plate 1 near one end of the first stamping block 7, corresponding to the first stamping block 7, and a plurality of buckle stamping blocks 11 are fixed at intervals in the middle of the lower surface of the pressing plate 6, and a buckle stamping groove 12 is opened on the upper surface of the first mounting plate 1 corresponding to the buckle stamping block 11, and a first fixed plate 13 is fixed on both sides of the lower surface of the first mounting plate 1 near one end of the first stamping hole 9, and a support plate 19 is fixed between the lower sides of the middle of the opposite surfaces of the first fixed plate 13, and the middle of the upper surface of the support plate 19 is installed There is a second hydraulic cylinder 21, the output rod of the second hydraulic cylinder 21 is facing upward and fixed with a first push plate 23, and a second push plate 24 is slidably installed in the horizontal direction in the middle of the lower surface of the first mounting plate 1 near one end of the first punching hole 9, and a conveying mechanism is installed between the bottoms of the opposite surfaces of the first fixed plate 13. The first punching block 7 can deliver the punched magnetic core metal sheet to the first push plate 23 in the first punching hole 9 through the first punching hole 9, and the subsequent punched magnetic core metal sheet will be riveted with the magnetic core metal sheet on the lower side through the buckle. When the second push plate 24 moves, it can push the riveted magnetic core on the first push plate 23, which is helpful to discharge the magnetic core after punching and riveting when in use, so as to ensure the work efficiency of discharging the magnetic core after punching and riveting, and help to perform punching and riveting processing on the magnetic core, so as to use this punching and riveting mold.

[0033] Among them, a second punching block 8 is fixed to the middle of the lower surface of the pressing plate 6 away from one end of the first punching block 7, and a matching second punching hole 10 is opened in the middle of the end of the first mounting plate 1 close to the second punching block 8, corresponding to the second punching block 8, and the second punching hole 10 passes through the upper surface and the lower surface of the middle part of the end of the first mounting plate 1 close to the second punching hole 10, and the second punching hole 10 is located below the second punching block 8, and a retention groove 3 is opened in the middle of the upper surface of the first mounting plate 1, and the retention groove 3 passes through the middle of the upper side of the two end surfaces of the first mounting plate 1, and the first punching hole 9 passes through the upper surface and the lower surface of the middle part of the end of the first mounting plate 1 close to the first punching hole 9, and the first punching hole 9 is located below the first punching block 7. The pressing plate 6 can fix and limit the second stamping block 8; the second hydraulic cylinder 21 is in a vertical state, and the outer surface of the first push plate 23 is matched with the inner surface of the corresponding position in the first stamping hole 9 on the first mounting plate 1. The first push plate 23 is located below the first stamping hole 9 on the first mounting plate 1, and a third hydraulic cylinder 22 is installed on the side of the middle part of the lower surface of the first mounting plate 1 close to the first stamping hole 9. The third hydraulic cylinder 22 is in a horizontal state, and the output rod of the third hydraulic cylinder 22 faces the second push plate 24. The output rod of the third hydraulic cylinder 22 is fixedly connected to the middle part of the opposite surface of the second push plate 24, and the third hydraulic cylinder 22 helps to drive the second push plate 24 to move.

[0034] The conveying mechanism includes a first rotating roller 15, the middle parts of both ends of the first rotating roller 15 are rotatably connected with the corresponding positions at the bottom of the opposite surface of the first fixed plate 13 through a rotating shaft and a bearing, and the outer side of the first rotating roller 15 is jointly sleeved with a first conveying belt 17, and a rotating motor 29 is installed on the rotating shaft corresponding to the end of the first rotating roller 15 at the end of the first fixed plate 13 located on one side away from the bottom of the surface of the side of the first rotating roller 15 away from the middle of the first mounting plate 1, and the first fixed plate 13 can fix and limit the rotating motor 29; the output shaft of the rotating motor 29 faces the rotating shaft corresponding to the opposite end of the first rotating roller 15 and is fixedly connected with the rotating shaft corresponding to the opposite end of the first rotating roller 15, and the second fixed plate 14 is fixed on both sides of the lower surface of the first mounting plate 1 away from the end of the first fixed plate 13, and the second rotating rollers 16 are rotatably installed at both ends of the bottom of the opposite surface of the second fixed plate 14 through bearings and rotating shafts, and the rotating motor 29 helps to drive the first rotating roller 15 to rotate.

[0035] A second conveying belt 18 is sleeved and installed between the outer sides of the second rotating rollers 16. A first gear 27 is fixed to the end of the rotating shaft of both ends of the first rotating roller 15 close to the end of the second rotating roller 16 away from the first rotating roller 15. A second gear 28 is fixed to the end of the rotating shaft of both ends of the second rotating roller 16 close to the end of the first rotating roller 15 away from the second rotating roller 16. The first gear 27 and the second gear 28 located on the same side are in a matched meshing state. The first gear 27 and the second gear 28 help to link the first rotating roller 15 with the second rotating roller 16. Between the lower surfaces of the first fixed plate 13 and the second fixed plate 14 A horizontal support frame 25 is fixed together, and support legs 26 are fixed at the four corners of the lower surface of the support frame 25. A horizontal second mounting plate 2 is fixed between the upper end surfaces of the limiting rods 4, and the support legs 26 can support and limit the support frame 25, so as to facilitate the stable use of the support frame 25; a first hydraulic cylinder 20 is installed in the middle of the upper surface of the second mounting plate 2, and the output rod of the first hydraulic cylinder 20 faces downward and passes through the upper and lower surfaces of the middle part of the second mounting plate 2, and the output rod of the first hydraulic cylinder 20 is fixedly connected to the middle part of the upper surface of the movable plate 5, and the first hydraulic cylinder 20 helps to drive the movable plate 5 to move.

[0036] The working principle of the utility model is as follows: during use, the support legs 26 are stably placed at the position where they need to be used, which helps to stably use the support legs 26, and the support legs 26 can support and limit the support frame 25 and the various components assembled on the support frame 25, so as to facilitate the stable use of the support frame 25 and the various components assembled on the support frame 25, the support frame 25 can support and limit the first fixed plate 13 and the various components assembled on the first fixed plate 13, so as to facilitate the stable use of the first fixed plate 13 and the various components assembled on the first fixed plate 13, the support frame 25 can support and limit the second fixed plate 14 and the various components assembled on the second fixed plate 14, so as to facilitate the stable use of the second fixed plate 14 and the various components assembled on the second fixed plate 14, the first fixed plate 13 and the second fixed plate 14 can support and limit the first mounting plate 1 and the various components assembled on the first mounting plate 1, so as to facilitate the stable use of the first mounting plate 1 and the various components assembled on the first mounting plate 1.

[0037] The raw material metal plate of the magnetic core to be processed is placed in the retention groove 3 on the first mounting plate 1, and the raw material metal plate of the magnetic core is moved from the second punching hole 10 to the first punching hole 9 by an external device for conveying the raw material metal plate of the magnetic core, and the first hydraulic cylinder 20 on the upper surface of the second mounting plate 2 is further opened, and the first mounting plate 1 can support and limit the limit rod 4, which is convenient for the stable use of the limit rod 4, and the limit rod 4 can support and limit the second mounting plate 2, which is helpful for the stable use of the second mounting plate 2, and the second mounting plate 2 can support and limit the first hydraulic cylinder 20, which is convenient for the stable use of the first hydraulic cylinder 20. When the first hydraulic cylinder 20 is opened, the output rod of the first hydraulic cylinder 20 can drive the movable plate 5 to move downward, and the movable plate 5 will move along the outer side of the limit rod 4 when moving downward, and the first mounting plate 1 can limit the movable plate 5 through the limit rod 4, which is helpful for the stable movement of the movable plate 5.

[0038] When the movable plate 5 moves downward, it can drive the pressing plate 6 to move downward. When the pressing plate 6 moves downward, it can drive the second punching block 8 to move downward. When the second punching block 8 punches the magnetic core raw material metal plate, it will punch holes in the magnetic core raw material metal plate, and the punched magnetic core raw material metal plate fragments will fall to the upper side of the second conveyor belt 18 through the second punching hole 10. The movable plate 5, the pressing plate 6, the first punching block 7, the second punching block 8 and the buckle punching block 11 are driven upward by the first hydraulic cylinder 20, and further the position of the magnetic core raw material metal plate punched by the second punching block 8 is moved to correspond to the buckle punching groove 12 through the external equipment used to convey the magnetic core raw material metal plate.

[0039] The movable plate 5, the pressing plate 6, the first punching block 7, the second punching block 8 and the buckle punching block 11 are driven downward by the first hydraulic cylinder 20, so that the buckle punching block 11 punches the magnetic core raw material metal plate, and the buckle punching block 11 and the buckle punching groove 12 can punch and buckle the magnetic core raw material metal plate. After the stamping and buckling of the magnetic core raw material metal plate is completed, the position of the magnetic core raw material metal plate after the stamping and buckling is completed is moved to correspond to the first punching hole 9, and the second hydraulic cylinder 21 on the support plate 19 is opened. The first fixed plate 13 can fix and limit the support plate 19, which is convenient for the stable use of the support plate 19. The support plate 19 can support and limit the second hydraulic cylinder 21, which is helpful for the stable use of the second hydraulic cylinder 21. When the second hydraulic cylinder 21 is opened, the output rod of the second hydraulic cylinder 21 can drive the first push plate 23 to move upward, so that the first push plate 23 moves to the first punching hole 9 on the first mounting plate 1.

[0040] The first hydraulic cylinder 20 drives the movable plate 5, the pressure plate 6, the first punching block 7, the second punching block 8 and the buckle punching block 11 to move downward, and the first punching block 7 can send the punched magnetic core metal sheet to the first push plate 23 in the first punching hole 9 through the first punching hole 9. The subsequently punched magnetic core metal sheet will be riveted with the magnetic core metal sheet on the lower side through the buckle. After the magnetic core is riveted, the first push plate 23 and the riveted magnetic core are driven by the second hydraulic cylinder 21 to move in detail. After the riveted magnetic core moves to the lower side of the first punching hole 9, the third hydraulic cylinder 22 is opened, and the output rod of the third hydraulic cylinder 22 can drive the second push plate 24 to move. When the second push plate 24 moves, it can push the riveted magnetic core on the first push plate 23, so that the riveted magnetic core falls to the upper side of the first conveyor belt 17.

[0041] Open the rotating motor 29 on the first fixed plate 13. The first fixed plate 13 can support and limit the rotating motor 29, so as to stably use the rotating motor 29. When the rotating motor 29 is turned on, the output shaft of the rotating motor 29 can drive the first rotating roller 15 to rotate through the rotating shaft, and can drive the first conveying belt 17 to rotate. When the first conveying belt 17 rotates, it can drive the first rotating roller 15 at the other end to rotate. When the first rotating roller 15 rotates, it can drive the first gear 27 to rotate through the rotating shaft. When the first gear 27 rotates, it can drive the second gear 28 that is meshed with the matching gear to rotate. When the second gear 28 rotates, it can drive the second rotating roller 16 to rotate through the rotating shaft. When the second rotating roller 16 rotates, it can drive the second rotating roller 16 to rotate. The conveyor belt 18 rotates, and because the first gear 27 and the second gear 28 are in a matched meshing state, the first gear 27 and the second gear 28 rotate in opposite directions. The first gear 27 and the second gear 28 rotate in opposite directions, which causes the first rotating roller 15 and the second rotating roller 16 to rotate in opposite directions. The first rotating roller 15 and the second rotating roller 16 rotate in opposite directions, which causes the first conveyor belt 17 and the second conveyor belt 18 to rotate in opposite directions, so that the magnetic core after riveting on the upper side of the first conveyor belt 17 and the scraps of the magnetic core raw material metal plate on the upper side of the second conveyor belt 18 move in opposite directions, so as to discharge the scraps of the magnetic core after riveting and the scraps of the magnetic core raw material metal plate.

[0042] During use, it helps to discharge the magnetic core after stamping and riveting, so as to ensure the work efficiency of discharging the magnetic core after stamping and riveting, and helps to perform stamping and riveting processing on the magnetic core, so as to facilitate the use of this stamping and riveting mold.

[0043] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A stamping and riveting die for a magnetic core, comprising a first mounting plate (1), characterized in that: The four corners of the upper surface of the first mounting plate (1) are fixed with limit rods (4), and a movable plate (5) is slidably mounted between the outer sides of the limit rods (4) in the vertical direction. A pressing plate (6) is fixed in the middle of the lower surface of the movable plate (5), and a first punching block (7) is mounted in the middle of one end of the lower surface of the pressing plate (6). A first punching hole (9) is provided in the middle of one end of the first mounting plate (1) close to the first punching block (7) and corresponding to the first punching block (7). A plurality of buckle punching blocks (11) are fixed at intervals in the middle of the lower surface of the pressing plate (6), and a buckle punching block (11) is provided on the upper surface of the first mounting plate (1) and corresponding to the buckle punching block (11). A pressing groove (12), first fixing plates (13) are fixed on both sides of the lower surface of the first mounting plate (1) near one end of the first punching hole (9), a support plate (19) is fixed between the lower sides of the middle parts of the opposite surfaces of the first fixing plate (13), a second hydraulic cylinder (21) is installed in the middle part of the upper surface of the support plate (19), the output rod of the second hydraulic cylinder (21) faces upward and is fixed with a first push plate (23), a second push plate (24) is slidably installed in the horizontal direction in the middle part of the lower surface of the first mounting plate (1) near one end of the first punching hole (9), and a conveying mechanism is installed between the bottoms of the opposite surfaces of the first fixing plate (13).

2. The stamping and riveting die for a magnetic core according to claim 1, characterized in that: A second punching block (8) is fixed to the middle of the lower surface of the pressing plate (6) away from one end of the first punching block (7); a second punching hole (10) matching with the second punching block (8) is opened in the middle of one end of the first mounting plate (1) close to the second punching block (8); the second punching hole (10) passes through the upper surface and the lower surface of the middle of one end of the first mounting plate (1) close to the second punching hole (10); the second punching hole (10) is located below the second punching block (8); a retaining groove (3) is opened in the middle of the upper surface of the first mounting plate (1); the retaining groove (3) passes through the middle of the upper side of the two end surfaces of the first mounting plate (1); the first punching hole (9) passes through the upper surface and the lower surface of the middle of one end of the first mounting plate (1) close to the first punching hole (9); the first punching hole (9) is located below the first punching block (7).

3. The stamping and riveting die for a magnetic core according to claim 2, characterized in that: The second hydraulic cylinder (21) is in a vertical state, the outer surface of the first push plate (23) and the inner surface of the corresponding position in the first punching hole (9) on the first mounting plate (1) are in a matching state, the first push plate (23) is located below the first punching hole (9) on the first mounting plate (1), and a third hydraulic cylinder (22) is installed on the side of the middle part of the lower surface of the first mounting plate (1) close to the first punching hole (9), the third hydraulic cylinder (22) is in a horizontal state, the output rod of the third hydraulic cylinder (22) faces the second push plate (24), and the output rod of the third hydraulic cylinder (22) is fixedly connected to the middle part of the opposite surface on the second push plate (24).

4. The stamping and riveting die for a magnetic core according to claim 3, characterized in that: The conveying mechanism comprises a first rotating roller (15), the middle parts of both ends of the first rotating roller (15) are rotatably connected to corresponding positions at the bottom of the opposite surface of the first fixed plate (13) through a rotating shaft and a bearing, a first conveying belt (17) is installed on the outer side of the first rotating roller (15), and a rotating motor (29) is installed on the rotating shaft of the end of the first rotating roller (15) at the bottom of the side of the first fixed plate (13) away from the first rotating roller (15) and away from the middle of the first mounting plate (1).

5. The stamping and riveting die for a magnetic core according to claim 4, characterized in that: The output shaft of the rotating motor (29) faces the rotating shaft at the opposite end of the first rotating roller (15) and is fixedly connected to the rotating shaft at the opposite end of the first rotating roller (15); a second fixed plate (14) is fixed on both sides of the lower surface of the first mounting plate (1) away from one end of the first fixed plate (13); and a second rotating roller (16) is rotatably mounted on both ends of the bottom of the opposite surface of the second fixed plate (14) via bearings and a rotating shaft.

6. The stamping and riveting die for a magnetic core according to claim 5, characterized in that: A second conveying belt (18) is sleeved and installed between the outer sides of the second rotating rollers (16); a first gear (27) is fixed to the end of the rotating shaft of the first rotating roller (15) at both ends close to the second rotating roller (16) and away from the first rotating roller (15); a second gear (28) is fixed to the end of the rotating shaft of the second rotating roller (16) at both ends close to the first rotating roller (15) and away from the second rotating roller (16); the first gear (27) and the second gear (28) located on the same side are in a matching meshing state.

7. The stamping and riveting die for a magnetic core according to claim 6, characterized in that: A support frame (25) in a horizontal state is fixed between the lower surfaces of the first fixing plate (13) and the second fixing plate (14), support legs (26) are fixed at the four corners of the lower surface of the support frame (25), and a second mounting plate (2) in a horizontal state is fixed between the upper end surfaces of the limiting rods (4).

8. The stamping and riveting die for a magnetic core according to claim 7, characterized in that: A first hydraulic cylinder (20) is installed in the middle of the upper surface of the second mounting plate (2), the output rod of the first hydraulic cylinder (20) is downward and penetrates the upper surface and the lower surface of the middle of the second mounting plate (2), and the output rod of the first hydraulic cylinder (20) is fixedly connected to the middle of the upper surface of the movable plate (5).

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