A punching apparatus

Abstract

The application relates to the busbar processing technical field and provides a punching equipment, which comprises a rack, a blanking die frame, a punching upper die set, a punching lower die set and a hydraulic unit, the blanking die frame is arranged on the rack, the punching upper die set and the punching lower die set are arranged on the blanking die frame, the punching upper die set is located directly above the punching lower die set, and a busbar is arranged between the punching lower die set and the punching upper die set; the hydraulic unit is arranged on the rack and located above the punching upper die set, and the hydraulic unit is used for controlling the punching upper die set to punch the punching lower die set. The application has the effect of improving the punching efficiency of the metal busbar.

Description

Technical Field

[0001] This application relates to the field of busbar processing technology, and in particular to a punching device. Background Technology

[0002] Busbars, also known as copper busbars or copper busbars, are long conductors made of copper with a rectangular or chamfered rectangular cross-section. Nowadays, rounded corner busbars are generally used to prevent point discharge. They serve to transmit current and connect electrical equipment in circuits. Busbars are widely used in electrical equipment, especially in complete power distribution systems. Busbar manufacturing processes include punching, embossing, cutting, marking, milling rounded corners, deburring, and bending.

[0003] When punching is required on the busbar, two methods are generally used: mechanical punching or manual punching. Mechanical punching usually uses large punching equipment such as punch presses, and usually uses a single punching head with a fixed mold that is not easy to change.

[0004] As for the manual punching method, the efficiency of manual punching is slow, the positioning accuracy is low, and it is easy to cause deviations in the punching of the busbar, which causes trouble for on-site construction. Often, the busbar needs to be processed multiple times to meet the construction requirements, which increases the processing cost of the busbar. Therefore, it needs to be improved. Summary of the Invention

[0005] To improve the efficiency of punching metal busbars, this application provides a punching device.

[0006] The punching device provided in this application adopts the following technical solution: A punching device includes a frame, a punching die frame, an upper punching die assembly, a lower punching die assembly, and a hydraulic unit. The punching die frame is mounted on the frame. The upper punching die assembly and the lower punching die assembly are both mounted on the punching die frame. The upper punching die assembly is located directly above the lower punching die assembly, and a motherboard is positioned between the lower punching die assembly and the upper punching die assembly. The hydraulic unit is mounted on the frame and located above the upper punching die assembly. The hydraulic unit is used to control the upper punching die assembly to punch the lower punching die assembly. The upper punching module includes a die shell, a reset component, a guide block, a striking head, and an elastic component. The die shell is slidably connected to the punching die frame in a vertical direction. The reset component is disposed on the punching die frame. The guide block is disposed on the die shell and connected to the reset component. When the die shell moves in a direction close to the lower punching module, the guide block presses the reset component and causes it to deform. The reset component is used to control the reset of the die shell and the guide block. The striking head is movably mounted on the mold shell, and the direction of movement of the striking head is the same as the direction of movement of the mold shell. A die opposite to the striking head is provided on the lower punching die assembly. The hydraulic unit is used to control the striking head to punch against the die. The elastic element is provided on the guide block and connected to the striking head. When the striking head is subjected to the force of the hydraulic unit, the elastic element deforms and is used to control the striking head to reset. The impact heads are arranged in parallel, and each impact head is distributed at intervals on the same side of the mold shell. The hydraulic unit punches one of the impact heads individually.

[0007] By adopting the above technical solution, when it is necessary to punch the busbar, the operator first places the busbar on the punching lower die, then operates the hydraulic unit to press down one of the striking heads. The die shell moves along the direction close to the punching lower die through the pressure transmitted by the striking head. The striking head drives the die shell to move down, so that the die shell presses down on the metal busbar to prevent the metal busbar from shifting. Then the striking head continues to move down under pressure and passes through the pre-reserved through hole in the die shell, punching the metal busbar until it extends into the die cavity to complete the punching.

[0008] After stamping is completed, the elastic potential energy generated by the reset component is released to control the mold shell and guide block to move upward and reset synchronously; while the elastic potential energy accumulated by the elastic component under compression is released, thereby controlling the striking head to return to the initial position so as to carry out the next stamping.

[0009] The design with multiple striking heads allows operators to easily select the appropriate head to punch the busbar according to actual needs. This metal busbar punching equipment automates the process, reducing operational difficulty and labor intensity, and enabling high-precision, high-efficiency punching operations.

[0010] Preferably, it further includes a lifting seat, a rotating component, an adjusting component, and a switching component. The lifting seat is lifted and lowered at the stamping end of the hydraulic unit. The rotating component is rotatably connected to the lifting seat. The adjusting component is located on the lifting seat and connected to the rotating component. The adjusting component is used to control the rotation of the rotating component. The switching component is connected to the side of the rotating component facing the punching module. The switching component is used to stamp one of the striking heads.

[0011] By adopting the above technical solution, in actual operation, the operator can control the rotation of the rotating component by adjusting the components to change the relative position of the switching component and each striking head, according to the required stamping position. Then, the hydraulic unit controls the lifting seat to move vertically downward, so that the switching component and the striking head come into contact and press, thus completing the stamping operation. The design of multiple striking heads on the punching module enables the equipment to quickly switch between different stamping positions according to actual needs, improving the flexibility of punching.

[0012] Preferably, the adjusting assembly includes a rotary motor and a transmission wheel. The output shaft of the rotary motor is connected to the transmission wheel and is used to control the rotation of the transmission wheel. The transmission wheel engages with the rotating component via a belt or chain.

[0013] By adopting the above technical solution, during adjustment, the rotating motor controls the rotation of the transmission wheel, which in turn drives the rotating parts to rotate under the transmission action of the belt or chain.

[0014] Preferably, it further includes a second lead screw, the lifting seat includes a fixed plate and a sliding plate, the fixed plate is connected to the hydraulic unit, the sliding plate is slidably disposed on the fixed plate, and the fixed plate is provided with a slide rail for the sliding plate to move; the second lead screw is connected to the sliding plate and is used to control the movement of the sliding plate, and the rotating component and the adjusting component are both disposed on the sliding plate.

[0015] By adopting the above technical solution, the second lead screw can control the linear movement of the translation plate on the fixed plate, and the rotating parts and adjusting components move synchronously, thereby changing the position of the switching parts relative to the striking head and further improving processing flexibility. During the movement of the translation plate, the slide rail can guide and limit the translation plate.

[0016] Preferably, it also includes a balancing component, which is located at the center of each of the striking heads. The balancing component is provided with a balancing spring, and the balancing component is connected to the mold shell through the balancing spring. The upper end of the balancing component is on the same plane as the upper end of each of the striking heads.

[0017] By adopting the above technical solution, during the punching process, the switching component can only punch one striking head at a time, and the area of ​​the punching surface is the end area of ​​the striking head. At this time, the pressure generated by the hydraulic unit on the striking head is relatively large, which can easily cause damage to the striking head. Since the end of the balance component away from the die shell is flush with the end of the striking head away from the die shell, when the hydraulic unit punches, the punching end can contact both the striking head and the balance component simultaneously. The setting of the balance component can increase the contact area, reduce the pressure between the switching component and the striking head, balance the pressure fluctuations during the punching process, and ensure punching accuracy and product quality.

[0018] During stamping, the balance spring is compressed under pressure, allowing the balance component to move down with the punching head. After the punching is completed, the balance spring drives the balance component to automatically reset.

[0019] Preferably, the guide block has a groove, and the balance spring is disposed in the groove.

[0020] By adopting the above technical solution, the balance spring is installed in the sink, which improves the stability of the connection between the balance component and the mold shell.

[0021] Preferably, the blanking die holder is further connected to a guide rod, and the reset member is sleeved on the guide rod; a plurality of guide rods are provided, each guide rod is spaced apart, and each is sleeved with the reset member, and the guide block is slidably connected to each guide rod.

[0022] By adopting the above technical solution, when the mold shell is subjected to pressure and moves downward, the guide block moves with the mold shell along the guide rod. The guide rod guides and limits the movement of the guide block, thereby improving the stability of the mold shell when it moves downward.

[0023] Preferably, the guide block has a guide hole and a keyway, the keyway is connected to the guide hole, and the guide hole is used for the striking head to pass through; a key block is connected to the striking head, and the key block is movably disposed in the keyway.

[0024] By adopting the above technical solution, after the die shell abuts against the busbar, the striking head can move further downward within the guide hole, achieving relative movement with the die shell and completing the stamping of the busbar. During the movement of the striking head, the key block always moves within the keyway. The cooperation between the key block and the keyway guides and restricts the movement of the striking head, limiting its rotation and improving the quality of the punching.

[0025] Preferably, it also includes a conveying assembly, which is disposed on the frame and connected to the blanking die frame. The conveying assembly is used to control the linear movement of the blanking die frame, and the blanking die frame is provided with several pairs of different upper dies and lower dies along its own movement direction. The conveying assembly includes a drive motor, a transmission structure, and a first lead screw. The first lead screw is rotatably connected to the frame. The output shaft of the drive motor is connected to the first lead screw through the transmission structure. The drive motor controls the rotation of the first lead screw. A guide rail is provided on the frame, and the blanking die frame is slidably disposed on the guide rail and connected to the first lead screw. By adopting the above technical solution, multiple sets of upper and lower dies are set on the blanking die set, allowing operators to easily switch between suitable dies according to actual needs before stamping the workpiece, thus improving practicality. When the striking head needs to be replaced, the drive motor rotates, which, under the action of the transmission structure, drives the first lead screw to rotate, converting the rotation of the first lead screw into linear motion of the blanking die set. The guide rails act as limiters for the movement of the blanking die set, improving its stability when the position changes.

[0026] In summary, this application includes at least one of the following beneficial technical effects: (1) The metal busbar punching equipment provided by this technology enables automated operation, reduces the difficulty of operation and labor intensity, and improves production efficiency.

[0027] (2) By setting adjustment components and multiple striking heads, the switching parts can be quickly switched to different positions for stamping according to actual needs, thereby improving production flexibility.

[0028] (3) By setting up a conveying component, the relative position of the punching die frame and the machine frame can be changed so that the staff can switch the appropriate die according to actual needs and then punch the workpiece. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the punching device in the embodiments of this application; Figure 2 This is a partial structural schematic diagram of the punching device in the embodiments of this application; Figure 3 This is a schematic diagram of the hydraulic unit and the blanking die frame in the embodiments of this application; Figure 4 This is a schematic diagram of the structure of the blanking die frame in the embodiments of this application; Figure 5 This is a schematic diagram of the structure of the punching module in the embodiments of this application; Figure 6 This is an exploded schematic diagram of the mold shell and the striking head in the embodiments of this application; Figure 7 This is a schematic diagram of the hydraulic unit in the embodiments of this application; Figure 8 yes Figure 7 A structural diagram from another perspective.

[0030] Reference numerals: 1. Frame; 2. Punching die frame; 3. Upper punching die assembly; 31. Die shell; 32. Reset component; 33. Guide block; 34. Impact head; 35. Elastic component; 4. Lower punching die assembly; 5. Hydraulic unit; 6. Guide hole; 7. Die cavity; 8. Keyway; 9. Key block; 10. Guide rod; 11. Balance component; 12. Sink; 13. Conveying assembly; 131. Drive motor; 132. Transmission structure; 133. First lead screw; 14. Guide rail; 15. Lifting seat; 151. Fixed plate; 152. Translation plate; 16. Rotating component; 17. Adjusting assembly; 171. Rotary motor; 172. Transmission wheel; 18. Switching component; 19. Second lead screw; 20. Slide rail; 21. Balance spring; 22. Limiting ring. Detailed Implementation

[0031] The technical solutions of this application will now be described with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can be embodied in many different forms and is not limited to the embodiments described herein.

[0032] In the representation of this application, the reference to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., means that a specific feature, structure, material, or characteristic represented in connection with that embodiment or example is included in at least one embodiment or example of this application. Moreover, the specific features, structures, materials, or characteristics represented may be combined in any suitable manner in one or more embodiments or examples.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0034] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical terms "installation," "connection," "joining," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection; a detachable connection; an integral part; or a mechanical connection. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0035] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Without conflict, those skilled in the art can combine and integrate the different embodiments or examples shown in this application, as well as the features of those embodiments or examples.

[0036] This application discloses a punching device. (Refer to...) Figure 1 and Figure 2 The punching equipment includes a frame 1, a punching die frame 2, an upper punching die 3, a lower punching die 4, and a hydraulic unit 5. The frame 1 serves as a support and is fixedly installed on the ground. The punching die frame 2 is mounted on the frame 1. Both the upper punching die 3 and the lower punching die 4 are mounted on the punching die frame 2, with the upper punching die 3 directly above the lower punching die 4 and a gap between them. The metal busbar to be processed is placed between the lower punching die 4 and the upper punching die 3. The hydraulic unit 5 is fixedly installed on the frame 1 and located above the upper punching die 3. The hydraulic unit 5 controls the upper punching die 3 to punch the lower punching die 4. In this embodiment, the hydraulic unit 5 is a stamping press.

[0037] Reference Figure 3 and Figure 4 Specifically, the upper punching module 3 includes a die shell 31, a reset element 32, a guide block 33, a striking head 34, and an elastic element 35. The die shell 31 is a hollow cylinder and is vertically mounted on the punching die frame 2. The reset element 32 is a reset spring, with one end connected to the punching die frame 2 and the other end connected to the guide block 33. The guide block 33 is integrally connected to the die shell 31 and is located directly above the die shell 31. The guide block 33 can move up and down synchronously with the die shell 31. When the die shell 31 moves towards the lower punching module 4, the guide block 33 moves accordingly and compresses the reset spring, causing the reset spring to deform so that the reset spring controls the subsequent reset of the die shell 31 and the guide block 33.

[0038] Reference Figure 5 and Figure 6 The striking head 34 is movably mounted on the mold shell 31 via an elastic element 35. The direction of movement of the striking head 34 is the same as that of the mold shell 31. The elastic element 35 is an elastic spring, one end of which is connected to the guide block 33, and the other end is connected to the striking head 34. The elastic spring is sleeved on the outer surface of the striking head 34 along the direction of movement of the striking head 34. A guide hole 6 is provided through the guide block 33 for the striking head 34 to pass through, so that the striking head 34 and the mold shell 31 can move relative to each other. A die 7 opposite to the striking head 34 is provided on the lower punching module 4. The hydraulic unit 5 is used to control the striking head 34 to punch in the die 7. When the striking head 34 is subjected to downward pressure from the hydraulic unit 5, the elastic spring deforms and is compressed to control the subsequent reset of the striking head 34. In some embodiments, a limit ring 22 is integrally connected to the end of the mold shell 31 away from the lower punching module 4. The cross-sectional diameter of the limit ring 22 is larger than the cross-sectional diameter of the guide hole 6. The limiting ring 22 can restrict the movement of the mold shell 31 and prevent the mold shell 31 from passing through the guide hole 6.

[0039] Reference Figure 6 The guide block 33 is provided with a keyway 8, which is connected to the guide hole 6. A key block 9 is connected to the surface of the striking head 34, and the key block 9 is slidably connected in the keyway 8. During the relative movement of the striking head 34 and the mold shell 31, the key block 9 always moves within the keyway 8. The cooperation between the key block 9 and the keyway 8 can guide and restrict the movement of the striking head 34, restrict the circumferential rotation of the striking head 34, and improve the punching quality. As shown in the figure, in this embodiment, four striking heads 34 are arranged in parallel, and each striking head 34 is distributed at intervals on the same side of the mold shell 31, forming a rectangle. The hydraulic unit 5 can act on one of the striking heads 34 individually for punching.

[0040] When punching a busbar is required, the operator first places the busbar on the lower punching die 4. Then, the hydraulic unit 5 presses down on one of the striking heads 34. The die shell 31 moves along the direction closer to the lower punching die 4 through the pressure transmitted by the striking head 34. The striking head 34 drives the die shell 31 to move downward, so that the die shell 31 presses down on the metal busbar to prevent it from shifting. Subsequently, the striking head 34 continues to move downward under pressure and passes through the pre-reserved through hole in the die shell 31, punching the metal busbar until it extends into the die cavity 7 to complete the punching. After the punching is completed, the elastic potential energy generated by the reset member 32 is released to control the die shell 31 and the guide block 33 to move upward and reset synchronously. Meanwhile, the elastic potential energy accumulated by the elastic member 35 under compression is released, thereby controlling the striking head 34 to return to its initial position for the next punching. The metal busbar punching equipment provided by this technology achieves automated operation, reducing the difficulty of operation and labor intensity.

[0041] In some embodiments, please refer to Figure 5 Several guide rods 10 are fixedly connected to the blanking die holder 2. The guide rods 10 are vertically arranged, parallel to each other, and spaced apart around the periphery of the die shell 31. Return springs are sleeved on the guide rods 10, with each guide rod 10 having a return spring. Guide blocks 33 are slidably connected to each guide rod 10. When the die shell 31 is subjected to pressure and moves downwards, the guide blocks 33 move along with the die shell 31 on the guide rods 10. The guide rods 10 guide and limit the movement of the guide blocks 33, improving the stability of the die shell 31 during downward movement.

[0042] For details, please refer to Figure 7 and Figure 8The frame 1 is equipped with a lifting seat 15, a rotating component 16, an adjusting component 17, and a switching component 18. The lifting seat 15 is vertically oriented and positioned at the stamping end of the hydraulic unit 5. The rotating component 16 is disc-shaped and rotatably connected to the lifting seat 15. The adjusting component 17 is mounted on the lifting seat 15 and connected to the rotating component 16, and is used to control the rotation of the rotating component 16. The switching component 18 is block-shaped and fixedly connected to the side of the rotating component 16 facing the punching module 3. The switching component 18 is used to stamp the striking head 34.

[0043] During the actual processing, depending on the required stamping position, the operator can control the rotation of the rotating part 16 by adjusting the component 17, thereby changing the relative position of the switching part 18 and each striking head 34. Then, the hydraulic unit 5 controls the lifting seat 15 to move vertically downward, causing the switching part 18 and the striking head 34 to contact and press, thus completing the stamping operation. The design of multiple striking heads 34 in the punching module 3 enables the equipment to quickly switch between different stamping positions according to actual needs, improving the flexibility of punching.

[0044] Specifically, the adjustment assembly 17 includes a rotary motor 171 and a transmission wheel 172. The rotary motor 171 is mounted on the lifting base 15, and its output shaft is connected to the transmission wheel 172, controlling the rotation of the transmission wheel 172. The transmission wheel 172 engages with the rotating component 16 via a belt or chain. During adjustment, the rotary motor 171 is operated to control the rotation of the transmission wheel 172, which, under the transmission action of the belt or chain, drives the rotating component 16 to rotate.

[0045] In some embodiments, refer to Figure 8 The lifting seat 15 includes a fixed plate 151 and a sliding plate 152. The fixed plate 151 is fixedly connected to the stamping end of the hydraulic unit 5. The sliding plate 152 is slidably connected to the side surface of the fixed plate 151 near the punching module 3. A slide rail 20 for sliding the sliding plate 152 is fixedly connected to the fixed plate 151. A second lead screw 19 is rotatably connected to the fixed plate 151. The second lead screw 19 is controlled to rotate by a motor. The second lead screw 19 is connected to the sliding plate 152 and is used to control the movement of the sliding plate 152. The rotating component 16 and the rotary motor 171 are both mounted on the sliding plate 152. The rotation of the second lead screw 19 can be converted into the linear movement of the sliding plate 152 along the slide rail 20 on the fixed plate 151. The rotating component 16 and the adjusting component 17 move synchronously, thereby changing the position of the switching component 18 relative to the striking head 34, further improving processing flexibility.

[0046] In addition, a balancing component 11 is connected to the mold shell 31. The balancing component 11 is rod-shaped and installed at the center of the four striking heads 34. A balancing spring 21 is connected to the balancing component 11. A groove 12 is formed on the guide block 33, and the elastic element 35 of the balancing component 11 is installed in the groove 12. The balancing component 11 is connected to the guide block 33 through the balancing spring 21. One end of the balancing spring 21 is fixedly connected to the guide block 33, and the other end is fixedly connected to the lower end of the balancing component 11. The balancing component 11 is located directly above the balancing spring 21. The end of the balancing component 11 away from the mold shell 31 and the end of the striking head 34 away from the mold shell 31 are on the same horizontal plane.

[0047] During the punching process, the switching element 18 can only punch one striking head 34 at a time, and the area of ​​the punching surface is the end area of ​​the striking head 34. At this time, the pressure generated by the hydraulic unit 5 on the striking head 34 is relatively large, which can easily cause damage to the striking head 34. By adding a balancing element 11, when the hydraulic unit 5 is punching, since the end of the balancing element 11 away from the die shell 31 is flush with the end of the striking head 34 away from the die shell 31, the punching end can contact both the striking head 34 and the balancing element 11 simultaneously. The setting of the balancing element 11 can increase the contact area, reduce the pressure between the switching element 18 and the striking head, balance the pressure fluctuations during the punching process, and ensure the punching accuracy and product quality. During the punching process, the balancing spring 21 is compressed by the pressure and makes room, so that the balancing element 11 can move down with the striking head 34 without interfering with the punching of the striking head 34. After the punching is completed, the balancing spring 21 releases its elastic potential energy to drive the balancing element 11 to automatically reset.

[0048] In some embodiments, please refer to Figure 1 The frame 1 is also equipped with a conveying assembly 13, which is connected to the blanking die frame 2 and is used to control the linear movement of the blanking die frame 2 in the horizontal direction on the frame 1. The blanking die frame 2 has several sets of upper dies and lower dies of different specifications along its own movement direction, with each upper die and each lower die being vertically opposite each other. The presence of multiple sets of upper dies and lower dies allows the operator to easily switch between appropriate dies according to actual needs and then stamp the workpiece, improving practicality.

[0049] The conveying assembly 13 includes a drive motor 131, a transmission structure 132, and a first lead screw 133. The first lead screw 133 is rotatably connected to the frame 1, and the drive motor 131 is fixed to the frame 1. The output shaft of the drive motor 131 is connected to one end of the first lead screw 133 through the transmission structure 132. The transmission structure 132 is either a belt drive or a chain drive, both of which are existing technologies and will not be described in detail here. A guide rail 14 is also fixedly connected to the frame 1. The guide rail 14 is arranged along the moving direction of the blanking die frame 2. The blanking die frame 2 is slidably arranged on the guide rail 14 and connected to the first lead screw 133. When it is necessary to replace the striking head 34, the drive motor 131 is turned, which drives the first lead screw 133 to rotate under the action of the transmission structure 132. The rotation of the first lead screw 133 is converted into linear motion of the blanking die frame 2, causing the blanking die frame 2 to move linearly along the guide rail 14.

[0050] The implementation principle of a punching device according to an embodiment of this application is as follows: A metal nut is placed on the surface of the lower punching die 4. According to the required punching position, the adjusting component 17 drives the rotating component 16 to rotate. After rotation, the switching component 18 switches to the punching head 34 required for punching. Then, the hydraulic unit 5 drives the switching component 18 to punch the lower punching die 4, while contacting the balancing component 11 to balance the pressure. At the same time, the die shell 31 is pressed down. The die shell 31 moves towards the lower punching die 4 under the pressure of the balancing component 11 and the punching head 34. The die shell 31 presses down on the metal nut to prevent the metal nut from shifting. Then, the punching head 34 penetrates through the guide hole 6 and punches the metal nut until it extends into the die cavity 7 to complete the punching.

[0051] After stamping is completed, the reset component 32 resets the entire mold shell 31, and the elastic component 35 resets the striking head 34 and the balancing component 11. When it is necessary to switch to other punching positions, the switching component 18 can be driven by the adjusting component 17. The metal busbar punching equipment and stamping method provided by this technology can achieve high-precision and high-efficiency punching operations.

[0052] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A punching device, characterized in that, The assembly includes a frame (1), a blanking die frame (2), an upper punching die (3), a lower punching die (4), and a hydraulic unit (5). The blanking die frame (2) is mounted on the frame (1). The upper punching die (3) and the lower punching die (4) are both mounted on the blanking die frame (2). The upper punching die (3) is located directly above the lower punching die (4), and the motherboard is positioned between the lower punching die (4) and the upper punching die (3). The hydraulic unit (5) is mounted on the frame (1) and located above the upper punching die (3). The hydraulic unit (5) is used to control the upper punching die (3) to punch the lower punching die (4). The upper punching module (3) includes a die shell (31), a reset member (32), a guide block (33), a striking head (34), and an elastic member (35). The die shell (31) is slidably connected to the punching die frame (2) in the vertical direction. The reset member (32) is located on the punching die frame (2). The guide block (33) is located on the die shell (31) and connected to the reset member (32). When the die shell (31) moves in a direction close to the lower punching module (4), the guide block (33) squeezes the reset member (32) and causes it to deform. The reset member (32) is used to control the reset of the die shell (31) and the guide block (33). The striking head (34) is movably mounted on the mold shell (31), and the direction of movement of the striking head (34) is the same as the direction of movement of the mold shell (31). The punching lower module (4) is provided with a concave die (7) opposite to the striking head (34). The hydraulic unit (5) is used to control the striking head (34) to punch the concave die (7). The elastic element (35) is mounted on the guide block (33) and connected to the striking head (34). When the striking head (34) is subjected to the force of the hydraulic unit (5), the elastic element (35) deforms and is used to control the striking head (34) to reset. Among them, several impact heads (34) are arranged in parallel, and each impact head (34) is distributed at intervals on the same side of the mold shell (31). The hydraulic unit (5) stamps one of the impact heads (34) individually. It also includes a lifting seat (15), a rotating component (16), an adjusting component (17), and a switching component (18). The lifting seat (15) is raised and lowered on the stamping end of the hydraulic unit (5). The rotating component (16) is rotatably connected to the lifting seat (15). The adjusting component (17) is located on the lifting seat (15) and connected to the rotating component (16). The adjusting component (17) is used to control the rotation of the rotating component (16). The switching component (18) is connected to the side of the rotating component (16) facing the punching module (3). The switching component (18) is used to stamp one of the striking heads (34). It also includes a balancing component (11), which is located at the center of each of the striking heads (34). The balancing component (11) is provided with a balancing spring (21). The balancing component (11) is connected to the mold shell (31) through the elastic element (35). The upper end of the balancing component (11) is on the same plane as the upper end of each of the striking heads (34).

2. The punching equipment according to claim 1, characterized in that, The adjustment assembly (17) includes a rotary motor (171) and a transmission wheel (172). The output shaft of the rotary motor (171) is connected to the transmission wheel (172) and is used to control the rotation of the transmission wheel (172). The transmission wheel (172) meshes with the rotating component (16) via a belt or chain.

3. The punching equipment according to claim 1, characterized in that, It also includes a second lead screw (19), the lifting seat (15) includes a fixed plate (151) and a sliding plate (152), the fixed plate (151) is connected to the hydraulic unit (5), the sliding plate (152) is slidably disposed on the fixed plate (151), and the fixed plate (151) is provided with a slide rail (20) for the sliding plate (152) to move; the second lead screw (19) is connected to the sliding plate (152) and is used to control the movement of the sliding plate (152), the rotating part (16) and the adjusting component (17) are both disposed on the sliding plate (152).

4. The punching equipment according to claim 1, characterized in that, The guide block (33) has a groove (12) and the balance spring (21) is located in the groove (12).

5. A punching device according to claim 1, characterized in that, The blanking die frame (2) is also connected to a guide rod (10), and the reset member (32) is sleeved on the guide rod (10); there are a plurality of guide rods (10), each guide rod (10) is spaced apart, and each is sleeved with the reset member (32), and the guide block (33) is slidably connected to each guide rod (10).

6. A punching device according to claim 1, characterized in that, The guide block (33) is provided with a guide hole (6) and a keyway (8). The keyway (8) is connected to the guide hole (6). The guide hole (6) is used for the striking head (34) to pass through. The striking head (34) is connected with a key block (9). The key block (9) is movably disposed in the keyway (8).

7. A punching device according to claim 1, characterized in that, It also includes a conveying assembly (13), which is mounted on the frame (1) and connected to the blanking die frame (2). The conveying assembly (13) is used to control the linear movement of the blanking die frame (2). The blanking die frame (2) is provided with several pairs of different upper and lower dies along its own movement direction. The conveying assembly (13) includes a drive motor (131), a transmission structure (132), and a first lead screw (133). The first lead screw (133) is rotatably connected to the frame (1). The output shaft of the drive motor (131) is connected to the first lead screw (133) through the transmission structure (132). The drive motor (131) is used to control the rotation of the first lead screw (133). A guide rail (14) is provided on the frame (1). The blanking die frame (2) is slidably disposed on the guide rail (14) and connected to the first lead screw (133).

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