Stamping die mechanism for shielding case machining

Abstract

The invention relates to the technical field of stamping dies, in particular to a stamping die mechanism for shielding case machining, which comprises a lower die, an extension block is arranged at the bottom of the lower die, a fixing rod is arranged on the surface of the extension block, a rotating shaft is arranged at the end of the fixing rod, a stress plate is fixed at the bottom of the lower die, and a limiting plate is fixed at the end of the stress plate; a piston rod and a limiting rod are arranged on the surface of the vertical plate, jacking blocks are fixed to the ends of the piston rod and the limiting rod, and a stepping motor and a rotating shaft are arranged on the surface of the vertical plate; the arc-shaped plate is arranged at the bottom of the lower die, and a telescopic groove is formed in the end of the arc-shaped plate; the device has the beneficial effects that a floating block moves in a lifting groove, so that a connecting pipe moves in a lifting hole, a communicating hole is not aligned with the end of an air pipe any more, a workpiece falls off from the surface of a lower die, the workpiece falls on the surface of an arc-shaped plate, and a telescopic groove is inserted into an inserting groove in the end of the arc-shaped plate; and the workpieces can be collected.

Description

Technical Field

[0001] The invention relates to the technical field of stamping dies, in particular to a stamping die mechanism for processing a shielding cover. Background Art

[0002] The shielding cover is a tool used to shield electronic signals. Its function is to shield the influence of external electromagnetic waves on the internal circuit and the radiation of electromagnetic waves generated inside.

[0003] In the prior art, the patent number is CN117960872B, and the name is a shielding cover stamping die, which includes a lower die, an upper die is arranged above the lower die, a connecting rod is fixedly installed on the right end of the upper die, a top block is fixedly installed on the bottom end of the connecting rod, a coolant box is fixedly installed on the right end of the upper die, a movable plate is movably connected to the inner cavity of the coolant box, a guide block is fixedly installed on the right end of the movable plate, and a reset spring is fixedly installed on the left end of the movable plate. When the upper die moves up, the top block is driven to contact the guide block, and then the guide block drives the movable plate to move left, and a large amount of coolant is squeezed into the cooling tank, and then the vertical slot is opened. After the coolant enters the vertical slot, the lifting plate can be pushed up, and at this time, the lifting plate drives the guide rod to move up, and the shielding cover located in the mold cavity is pushed out. The mold cavity is located on the lower die, and the operator can directly sweep out the shielding cover together, and the operator does not need to take the shielding cover out of the mold cavity one by one, and the operation is simple and convenient.

[0004] However, after the actual stamping is completed, the shielding cover will remain in the mold cavity. Due to the need to achieve batch production, usually multiple shielding covers will be obtained after one stamping. Therefore, the operator needs to take the shielding covers out of the mold cavity one by one before collecting the shielding covers, which is complicated. Summary of the invention

[0005] The object of the present invention is to provide a stamping die mechanism for processing a shielding cover to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a stamping die mechanism for processing a shielding cover, comprising:

[0007] The lower die is provided with an extension block at the bottom of the lower die, a fixing rod is provided on the surface of the extension block, a rotating shaft is provided at the end of the fixing rod, a force-bearing plate is fixed at the bottom of the lower die, and a limiting plate is fixed at the end of the force-bearing plate;

[0008] A vertical plate, a piston rod and a limit rod are arranged on the surface of the vertical plate, a top holding block is fixed to the ends of the piston rod and the limit rod, a stepping motor and a rotating shaft are arranged on the surface of the vertical plate; and an arc plate, arranged at the bottom of the lower mold, a telescopic groove is arranged at the end of the arc plate.

[0009] Preferably, an upper mold is arranged on the top of the lower mold, and the top of the upper mold is connected to a lifting device, which drives the upper mold to rise and fall. A workpiece is placed between the upper mold and the lower mold, and a mold groove and air suction holes are opened on the surface of the lower mold. The workpiece is located on the surface of the mold groove, and multiple groups of air suction holes are arranged, and the multiple groups of air suction holes surround the mold groove.

[0010] Preferably, a support rod is fixed to the bottom of the vertical plate, a support plate is fixed to the end of the arc plate, a base is fixed to the bottom of the support rod and the support plate, the other end of the piston rod is connected to a pushing device, the pushing device drives the piston rod to move, the piston rod is inserted into the interior of the vertical plate, the piston rod can move inside the vertical plate, the holding block moves with the piston rod, the limit rod is inserted into the interior of the vertical plate, and the limit rod moves with the holding block.

[0011] Preferably, the stepper motor is fixed on the surface of the vertical plate, and a gear is provided at the other end of the stepper motor. The stepper motor drives the gear to rotate, and the rotating shaft is inserted into the interior of the vertical plate. The rotating shaft can rotate inside the vertical plate. A tooth groove is provided on the surface of the rotating shaft, and the teeth on the surface of the gear are engaged in the tooth groove. When the gear rotates, it drives the rotating shaft to rotate.

[0012] Preferably, two groups of arc plates are provided, baffles are fixed on both sides of the arc plates, plug-in slots are opened at the ends of the arc plates, telescopic slots are plugged into the plug-in slots, the telescopic slots can move in the plug-in slots, the telescopic slots are connected to the transverse driving device, the transverse driving device drives the telescopic slots to move, the telescopic slots move to the inside of the plug-in slots, and gaps are left between the arc plates.

[0013] Preferably, the supporting block is moved and inserted between the two groups of force-bearing plates, the distance between the limit plate and the lower mold is greater than the thickness of the supporting block, and the supporting block is inserted between the force-bearing plates and supported on the surface of the force-bearing plates. An extension block is fixed to the bottom of the lower mold, and fixing rods are fixed at both ends of the extension block. A plug-in hole is opened inside the fixing rod, and the rotating shaft is inserted into the plug-in hole. After the supporting block is moved, it is inserted between the force-bearing plates at the bottom of the lower mold, and the limit plate plays a limiting role, so that the lower mold remains stable under the support of the supporting block.

[0014] Preferably, a first top holding plate is fixed to the inner wall of the plug hole, a second top holding plate is fixed to the surface of the rotating shaft, a group of second top holding plates is located between the two groups of first top holding plates, when the rotating shaft rotates, the second top holding plates are held on the surfaces of the first top holding plates, driving the fixing rod to rotate, and rubber pads are fixed to the surface of the second top holding plates, the rubber pads are located on both sides of the second top holding plates, after the second top holding plate moves, it is first held on the surface of the first top holding plate by the rubber pads.

[0015] Preferably, a lifting groove is opened inside the extension block, the lifting groove is filled with water, and a floating block is arranged in the lifting groove, the floating block can float in the water, a connecting pipe is fixed on the surface of the floating block, the end of the connecting pipe is connected to the inside of the suction hole, a connecting hole is opened on the surface of the floating block, and the inside of the floating block is empty.

[0016] Preferably, a lifting hole is opened inside the extension block, the connecting pipe is inserted into the lifting hole, and the connecting pipe is lifted and moved along with the lifting slot, and the connecting pipe can move in the lifting hole.

[0017] Preferably, an air pipe is fixed on the surface of the extension block, and the other end of the air pipe is connected to the suction device, and when the floating block is located at the top of the lifting groove, the position of the connecting hole is aligned with the end of the air pipe, and when the connecting hole moves downward in the lifting hole, the connecting hole is located at the bottom of the end of the air pipe, and a limiting ring is fixed on the surface of the rotating shaft, and the limiting ring is located at the end of the fixed rod, and two groups of limiting rings are provided.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The interior of the lifting groove proposed in the present invention is filled with water. When the lower mold is facing upward, the floating block moves upward so that the connecting hole on the surface of the connecting pipe is aligned with the end of the air pipe. The interior of the connecting pipe is connected to the suction hole. The other end of the air pipe is connected to the suction equipment. The workpiece is adsorbed on the surface of the lower mold through the suction hole. When the lower mold is facing downward, the floating block moves in the lifting groove so that the connecting pipe moves in the lifting hole. The connecting hole is no longer aligned with the end of the air pipe, and the workpiece falls from the surface of the lower mold and falls onto the surface of the arc plate. The plug-in groove at the end of the arc plate is plugged with a telescopic groove. When the telescopic groove is retracted into the plug-in groove, the workpiece can be collected. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0021] Figure 2 This is a structural schematic diagram of another viewing angle of the present invention.

[0022] Figure 3 It is a schematic diagram of the structure of the top holding block of the present invention.

[0023] Figure 4 It is a schematic diagram of the lower mold structure of the present invention.

[0024] Figure 5 for Figure 4 A schematic diagram of the enlarged structure in the middle.

[0025] Figure 6 This is a schematic structural diagram of the lower mold of the present invention from another viewing angle.

[0026] Figure 7 It is a schematic diagram of the top view structure of the lower mold of the present invention.

[0027] Figure 8 It is a schematic diagram of the fixing rod structure of the present invention.

[0028] Fig. 9 It is a schematic diagram of the cross-sectional structure of the extension block of the present invention.

[0029] Fig.10 for Figure 8 Enlarged schematic diagram of the structure at point B in the middle.

[0030] In the figure: upper die 1, lower die 2, base 3, workpiece 4, piston rod 5, limit rod 6, support block 7, vertical plate 8, stepping motor 9, gear 10, tooth groove 11, rotating shaft 12, arc plate 13, baffle 14, plug-in slot 15, telescopic slot 16, force plate 17, limit plate 18, extension block 19, fixed rod 20, air pipe 21, suction hole 22, die groove 23, limit ring 24, floating block 25, lifting slot 26, lifting hole 27, connecting hole 28, plug-in hole 29, rubber pad 30, first support plate 31, second support plate 32, support rod 33, support plate 34, connecting pipe 35. DETAILED DESCRIPTION

[0031] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit 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] See also Figures 1 to 10 , the present invention provides a technical solution:

[0033] Embodiment 1: A stamping die mechanism for processing a shielding cover comprises: a lower die 2, an extension block 19 is arranged at the bottom of the lower die 2, a fixing rod 20 is arranged on the surface of the extension block 19, a rotating shaft 12 is arranged at the end of the fixing rod 20, a force-bearing plate 17 is fixed at the bottom of the lower die 2, a limiting plate 18 is fixed at the end of the force-bearing plate 17; a vertical plate 8, a piston rod 5 and a limiting rod 6 are arranged on the surface of the vertical plate 8, a supporting block 7 is fixed at the ends of the piston rod 5 and the limiting rod 6, a stepping motor 9 and a rotating shaft 12 are arranged on the surface of the vertical plate 8; and an arc plate 13, arranged at the bottom of the lower die 2, a telescopic groove 16 is arranged at the end of the arc plate 13, a workpiece 4 falls from the surface of the lower die 2, and the workpiece 4 falls onto the surface of the arc plate 13, the telescopic groove 16 is inserted into the plug-in groove 15 at the end of the arc plate 13, and when the telescopic groove 16 is retracted into the plug-in groove 15, the workpiece 4 can be collected.

[0034] Embodiment 2: On the basis of Embodiment 1, an upper mold 1 is arranged on the top of the lower mold 2, and the top of the upper mold 1 is connected to a lifting device, which drives the upper mold 1 to move up and down, and a workpiece 4 is placed between the upper mold 1 and the lower mold 2. A mold groove 23 and air suction holes 22 are provided on the surface of the lower mold 2. The workpiece 4 is located on the surface of the mold groove 23. There are multiple groups of air suction holes 22, and the multiple groups of air suction holes 22 surround the mold groove 23. The other end of the air pipe 21 is connected to the suction device, and the workpiece 4 is adsorbed on the surface of the lower mold 2 through the air suction holes 22. When the lower mold 2 is facing downward, the floating block 25 moves in the lifting groove 26, so that the connecting pipe 35 moves in the lifting hole 27.

[0035] A support rod 33 is fixed to the bottom of the vertical plate 8, a support plate 34 is fixed to the end of the arc plate 13, a base 3 is fixed to the bottom of the support rod 33 and the support plate 34, the other end of the piston rod 5 is connected to the jacking device, the jacking device drives the piston rod 5 to move, the piston rod 5 is inserted into the interior of the vertical plate 8, the piston rod 5 can move inside the vertical plate 8, the top holding block 7 moves with the piston rod 5, the limit rod 6 is inserted into the interior of the vertical plate 8, the limit rod 6 moves with the top holding block 7, the arc plate 13 is provided with two groups, baffles 14 are fixed on both sides of the arc plate 13, and a plug-in groove 15 is provided at the end of the arc plate 13, and a plug-in groove 15 is inserted into the plug-in groove 15 The telescopic slot 16 can move in the plug-in slot 15. The telescopic slot 16 is connected to the transverse driving device. The transverse driving device drives the telescopic slot 16 to move. The telescopic slot 16 moves to the inside of the plug-in slot 15. A gap is left between the arc plates 13. After the supporting block 7 moves, it is inserted into between the two groups of force plates 17. The distance between the limit plate 18 and the lower mold 2 is greater than the thickness of the supporting block 7. After the supporting block 7 is inserted into between the force plates 17, it is supported on the surface of the force plates 17. After the supporting block 7 moves, it is inserted into between the force plates 17 at the bottom of the lower mold 2. The limit plate 18 plays a limiting role. Under the support of the supporting block 7, the lower mold 2 remains stable.

[0036] An extension block 19 is fixed to the bottom of the lower mold 2, and fixing rods 20 are fixed to both ends of the extension block 19. A plug hole 29 is provided inside the fixing rod 20, and the rotating shaft 12 is plugged into the plug hole 29. After the top holding block 7 is moved, it is plugged into the force-bearing plates 17 at the bottom of the lower mold 2. The limit plate 18 plays a limiting role. Under the support of the top holding block 7, the lower mold 2 remains stable. A first top holding plate 31 is fixed to the inner wall of the plug hole 29, and a second top holding plate 32 is fixed to the surface of the rotating shaft 12. A set of second top holding plates 32 is located between the two sets of first top holding plates 31. When the rotating shaft 12 rotates, the second top holding plates 32 are held on the surface of the first top holding plates 31, driving the fixing rod 20 to rotate. Rubber pads 30 are fixed on the surface of the second top holding plates 32. The rubber pads 30 are located on both sides of the second top holding plates 32. After the second top holding plates 32 move, the rubber pads 30 are first held on the surface of the first top holding plates 31. A lifting groove 26 is opened inside the extension block 19. The lifting groove 26 6 is filled with water, and a floating block 25 is provided in the lifting groove 26, and the floating block 25 can float in the water. A connecting pipe 35 is fixed on the surface of the floating block 25, and the end of the connecting pipe 35 is communicated with the inside of the suction hole 22. A connecting hole 28 is opened on the surface of the floating block 25, and the inside of the floating block 25 is empty. A lifting hole 27 is opened inside the extension block 19, and the connecting pipe 35 is inserted in the lifting hole 27, and the connecting pipe 35 moves up and down with the lifting groove 26, and the connecting pipe 35 can move in the lifting hole 27. An air pipe 21 is fixed on the surface of the extension block 19, and the other end of the air pipe 21 is connected to the suction device, and when the floating block 25 is located at the top of the lifting groove 26, the position of the connecting hole 28 is aligned with the end of the air pipe 21, and when the connecting hole 28 moves down in the lifting hole 27, the connecting hole 28 is located at the bottom of the end of the air pipe 21, and a limiting ring 24 is fixed on the surface of the rotating shaft 12, and the limiting ring 24 is located at the end of the fixing rod 20, and the limiting ring 24 is provided with two groups.

[0037] The stepper motor 9 is fixed on the surface of the vertical plate 8. A gear 10 is provided at the other end of the stepper motor 9. The stepper motor 9 drives the gear 10 to rotate. The rotating shaft 12 is inserted into the interior of the vertical plate 8. The rotating shaft 12 can rotate inside the vertical plate 8. A tooth groove 11 is provided on the surface of the rotating shaft 12. The teeth on the surface of the gear 10 mesh with the tooth groove 11. After the gear 10 rotates, it drives the rotating shaft 12 to rotate. The gear 10 is driven to rotate by the stepper motor 9. The teeth on the surface of the gear 10 mesh with the tooth groove 11 on the surface of the rotating shaft 12. The rotating shaft 12 rotates with the gear 10. The second top holding plate 32 on the surface of the rotating shaft 12 is supported on the surface of the first top holding plate 31, so that the rotating shaft 12 drives the fixed rod 20 to rotate.

[0038] The workpiece 4 is placed on the surface of the lower mold 2, and the driving device drives the holding block 7 to move through the piston rod 5. The limit rod 6 plays a limiting role. After the holding block 7 moves, it is inserted into the force-bearing plates 17 at the bottom of the lower mold 2. The limit plate 18 plays a limiting role. Under the support of the holding block 7, the lower mold 2 remains stable. The lifting device drives the upper mold 1 to descend, and the workpiece 4 is punched through the upper mold 1 and the lower mold 2, so that the punched workpiece is located inside the die groove 23. After the holding block 7 is moved out of the force-bearing plate 17, the gear 10 is driven to rotate by the stepper motor 9. The teeth on the surface of the gear 10 are engaged in the tooth grooves 11 on the surface of the rotating shaft 12. The rotating shaft 12 rotates with the gear 10, and the second holding plate 32 on the surface of the rotating shaft 12 is held on the surface of the first holding plate 31, so that the rotating shaft 12 drives the fixed rod 20 to rotate The fixed rod 20 drives the lower mold 2 to rotate, so that the lower mold 2 rotates toward the bottom, the interior of the lifting groove 26 is filled with water, and when the lower mold 2 is facing upward, the floating block 25 moves up, so that the connecting hole 28 on the surface of the connecting pipe 35 is aligned with the end of the air pipe 21, the interior of the connecting pipe 35 is connected to the suction hole 22, and the other end of the air pipe 21 is connected to the suction equipment, and the workpiece 4 is adsorbed on the surface of the lower mold 2 through the suction hole 22. When the lower mold 2 is facing downward, the floating block 25 moves in the lifting groove 26, so that the connecting pipe 35 moves in the lifting hole 27, and the connecting hole 28 is no longer aligned with the end of the air pipe 21, and the workpiece 4 falls from the surface of the lower mold 2, and the workpiece 4 falls onto the surface of the arc plate 13. The plug-in groove 15 at the end of the arc plate 13 is plugged with a telescopic groove 16. When the telescopic groove 16 is retracted into the plug-in groove 15, the workpiece 4 can be collected.

[0039] Although the above describes the illustrative specific implementation methods of the present application so that technicians in this technical field can understand the present application, the present application is not limited to the scope of the specific implementation methods. For ordinary technicians in this technical field, as long as various changes are within the spirit and scope of the present application defined and determined by the attached claims, all application creations using the concept of the present application are protected.

Claims

1. A stamping die mechanism for processing a shield cover, characterized in that: include: A lower mold (2), an extension block (19) is arranged at the bottom of the lower mold (2), a fixing rod (20) is arranged on the surface of the extension block (19), a rotating shaft (12) is arranged at the end of the fixing rod (20), a force-bearing plate (17) is fixed at the bottom of the lower mold (2), and a limiting plate (18) is fixed at the end of the force-bearing plate (17); A vertical plate (8), a piston rod (5) and a limit rod (6) are arranged on the surface of the vertical plate (8), a supporting block (7) is fixed to the ends of the piston rod (5) and the limit rod (6), a stepping motor (9) and a rotating shaft (12) are arranged on the surface of the vertical plate (8); and an arc-shaped plate (13), which is arranged at the bottom of the lower mold (2), and a telescopic groove (16) is arranged at the end of the arc-shaped plate (13).

2. The punching die mechanism for processing a shield cover according to claim 1, characterized in that: An upper mold (1) is arranged on the top of the lower mold (2), and a lifting device is connected to the top of the upper mold (1), which drives the upper mold (1) to move up and down. A workpiece (4) is placed between the upper mold (1) and the lower mold (2), and a mold groove (23) and air suction holes (22) are provided on the surface of the lower mold (2). The workpiece (4) is located on the surface of the mold groove (23), and a plurality of groups of air suction holes (22) are provided, and the plurality of groups of air suction holes (22) surround the mold groove (23).

3. The punching die mechanism for processing a shield cover according to claim 2, characterized in that: A support rod (33) is fixed at the bottom of the vertical plate (8), a support plate (34) is fixed at the end of the arc plate (13), a base (3) is fixed at the bottom of the support rod (33) and the support plate (34), the other end of the piston rod (5) is connected to a pushing device, the pushing device drives the piston rod (5) to move, the piston rod (5) is inserted into the interior of the vertical plate (8), the piston rod (5) can move inside the vertical plate (8), the supporting block (7) moves with the piston rod (5), the limiting rod (6) is inserted into the interior of the vertical plate (8), and the limiting rod (6) moves with the supporting block (7).

4. The punching die mechanism for processing a shield cover according to claim 3, characterized in that: The stepper motor (9) is fixed on the surface of the vertical plate (8). A gear (10) is arranged at the other end of the stepper motor (9). The stepper motor (9) drives the gear (10) to rotate. The rotating shaft (12) is inserted into the interior of the vertical plate (8). The rotating shaft (12) can rotate inside the vertical plate (8). A tooth groove (11) is provided on the surface of the rotating shaft (12). The teeth on the surface of the gear (10) are meshed in the tooth groove (11). When the gear (10) rotates, the rotating shaft (12) is driven to rotate.

5. The punching die mechanism for processing a shield cover according to claim 4, characterized in that: The arc-shaped plates (13) are provided with two groups, baffles (14) are fixed on both sides of the arc-shaped plates (13), plug-in slots (15) are provided at the ends of the arc-shaped plates (13), telescopic slots (16) are plugged into the plug-in slots (15), the telescopic slots (16) can move in the plug-in slots (15), the telescopic slots (16) are connected to a transverse driving device, the transverse driving device drives the telescopic slots (16) to move, the telescopic slots (16) move to the inside of the plug-in slots (15), and gaps are left between the arc-shaped plates (13).

6. The punching die mechanism for processing a shield cover according to claim 5, characterized in that: The supporting block (7) is inserted between the two groups of force-bearing plates (17) after being moved, and the distance between the limiting plate (18) and the lower mold (2) is greater than the thickness of the supporting block (7). After the supporting block (7) is inserted between the force-bearing plates (17), it is supported on the surface of the force-bearing plates (17). An extension block (19) is fixed to the bottom of the lower mold (2). Fixed rods (20) are fixed at both ends of the extension block (19). An inserting hole (29) is provided inside the fixed rod (20). The rotating shaft (12) is inserted into the inserting hole (29). After the supporting block (7) is moved, it is inserted between the force-bearing plates (17) at the bottom of the lower mold (2). The limiting plate (18) plays a limiting role. Under the support of the supporting block (7), the lower mold (2) remains stable.

7. A stamping die mechanism for processing a shield cover according to claim 6, characterized in that: A first supporting plate (31) is fixed to the inner wall of the plug hole (29), a second supporting plate (32) is fixed to the surface of the rotating shaft (12), a group of second supporting plates (32) is located between the two groups of first supporting plates (31), when the rotating shaft (12) rotates, the second supporting plates (32) are supported on the surface of the first supporting plates (31), driving the fixing rod (20) to rotate, a rubber pad (30) is fixed to the surface of the second supporting plate (32), the rubber pad (30) is located on both sides of the second supporting plate (32), after the second supporting plate (32) moves, the rubber pad (30) is first supported on the surface of the first supporting plate (31).

8. The punching die mechanism for processing a shield cover according to claim 7, characterized in that: The extension block (19) is provided with a lifting groove (26) inside, the lifting groove (26) is filled with water, and a floating block (25) is arranged in the lifting groove (26), the floating block (25) can float in the water, a connecting pipe (35) is fixed on the surface of the floating block (25), the end of the connecting pipe (35) is communicated with the inside of the air suction hole (22), a connecting hole (28) is provided on the surface of the floating block (25), and the inside of the floating block (25) is empty.

9. The punching die mechanism for processing a shield cover according to claim 8, characterized in that: The extension block (19) is provided with a lifting hole (27) inside, the connection pipe (35) is inserted into the lifting hole (27), and the connection pipe (35) is lifted and moved along with the lifting groove (26), so that the connection pipe (35) can move in the lifting hole (27).

10. The punching die mechanism for processing a shield cover according to claim 9, characterized in that: An air pipe (21) is fixed on the surface of the extension block (19), and the other end of the air pipe (21) is connected to an air suction device. When the floating block (25) is located at the top of the lifting groove (26), the position of the connecting hole (28) is aligned with the end of the air pipe (21). When the connecting hole (28) moves downward in the lifting hole (27), the connecting hole (28) is located at the bottom of the end of the air pipe (21). A limiting ring (24) is fixed on the surface of the rotating shaft (12), and the limiting ring (24) is located at the end of the fixing rod (20). Two groups of limiting rings (24) are provided.

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