Punching apparatus, punching platform and punching method

Abstract

A punching device, comprising: a pressure plate structure, connected to a punching device and moving with the punching device, a punching needle structure, movably connected to the pressure plate structure; and a supporting needle structure, one end of which is connected to the punching device and moving with the punching device; the other end of which supports the punching needle structure, and the punching device drives the pressure plate structure, the supporting needle structure and the punching needle structure to move toward a workpiece; the pressure plate structure presses the workpiece; the punching needle structure passes through the pressure plate structure and completes punching of the workpiece; the punching device drives the supporting needle structure to move away from the workpiece, and the supporting needle structure supports the punching needle structure to separate from the workpiece; the pressure plate structure continues to press the workpiece, and after the punching needle structure moves away from the workpiece to a predetermined distance, the punching device drives the pressure plate structure to separate from the workpiece. Through the setting of the supporting needle structure, the punching needle structure will not drive the pressure plate structure to separate from the workpiece until the punching needle structure moves away from the workpiece to a predetermined distance, thereby effectively preventing the workpiece from being lifted up, effectively avoiding damage to the workpiece, and facilitating the subsequent transportation of the workpiece.

Description

Technical Field

[0001] The invention belongs to the technical field of punching equipment, and in particular relates to a punching device, a punching platform and a punching method. Background Art

[0002] When processing inner-layer circuit boards, it is necessary to bond the individual circuit boards together with high precision in order to assemble the final circuit. Therefore, it is increasingly necessary to mark and punch holes on the individual inner-layer circuit board layers, usually by punching and drilling holes at precisely determined positions on the printed circuit board.

[0003] After the traditional stamping platform completes punching of the inner layer circuit board, the pressure plate used to press the inner layer circuit board and the punching needle used for punching detach from the inner layer circuit board at the same time. If both detach from the inner layer circuit board at the same time, it is very likely that the inner layer circuit board will be lifted up, which may cause damage to the inner layer circuit board and be unfavorable for the inner layer circuit board to be sent out of the stamping platform. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide a punching device, which aims to solve the problem of inner-layer circuit boards being lifted up and damaged.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted in the present application is: to provide a punching device, which is used in conjunction with a punching device, and the punching device can be movably arranged, and is characterized in that the punching device comprises:

[0006] A pressing plate structure, connected to the punching device and moving with the punching device, the pressing plate structure is used to press the workpiece; and

[0007] A punching needle structure, movably connected to the pressure plate structure, the punching needle structure is located between the punching device and the pressure plate structure; the punching needle structure is used to punch the workpiece; and

[0008] A needle-supporting structure, one end of which is connected to the punching device and moves with the punching device; the other end of which supports the punching needle structure; the needle-supporting structure is located between the punching device and the pressure plate structure;

[0009] When punching, the punching device drives the pressure plate structure, the support needle structure and the punch needle structure to move toward the workpiece; the pressure plate structure presses the workpiece; the punch needle structure passes through the pressure plate structure and punches the workpiece;

[0010] After punching, the punching device drives the pin support structure to move away from the workpiece, and the pin support structure lifts the punching pin structure to separate from the workpiece; the pressure plate structure continues to press the workpiece, and after the punching pin structure moves away from the workpiece to a predetermined distance, the punching device drives the pressure plate structure to separate from the workpiece.

[0011] In one embodiment, the punch needle structure includes a punch needle; the punch needle includes a head and a punching part connected to the head, the punching device acts on the head, and the needle supporting structure supports the head; the punching part passes through the needle supporting structure and acts on the workpiece to punch.

[0012] In one embodiment, the punching portion is provided with an elastic structure, one end of the elastic structure abuts against the pressing plate structure, and the other end of the elastic structure passes through the pin-supporting structure and abuts against the end of the head away from the punching device;

[0013] When the punching device drives the pressure plate structure and the needle support structure to move toward the workpiece, the position of the needle structure relative to the pressure plate structure remains unchanged under the support of the elastic structure; when the pressure plate structure presses the workpiece, the punching device continues to move toward the workpiece and contacts the head to drive the needle structure to move toward the workpiece.

[0014] In one embodiment, the needle support structure includes a pull rod, a support plate and a spring, one end of the pull rod passes through the stamping device and is movably connected to the stamping device, the other end of the pull rod is locked on the support plate, the punch needle is installed on the support plate, one end of the elastic structure passes through the support plate and abuts against the head; the spring is sleeved outside the pull rod, one end of the spring abuts against the support plate, and the other end abuts against the stamping device, the stamping device moves toward the direction of the workpiece to compress the spring and drive the support plate to move toward the direction of the workpiece.

[0015] In one embodiment, the punch needle structure further includes an end sleeve for dispersing punching force, and the end sleeve is sleeved outside the head.

[0016] In one embodiment, the pressure plate structure includes a pressure plate and a positioning member; the pressure plate is connected to the stamping device through a first connecting rod and a second connecting rod, one end of the first connecting rod is locked and connected to the pressure plate, and the other end is a radial reduction structure and is movably connected through the stamping device; one end of the second connecting rod is locked and connected to the stamping device, and the other end is a radial reduction structure and is movably connected through the pressure plate; the positioning member is arranged on the side of the pressure plate close to the workpiece; the positioning member presses the workpiece, and a guide hole for guiding the punching needle structure is penetrated through the positioning member.

[0017] A stamping platform, comprising: a lower die assembly, an upper die assembly and a middle die assembly; the lower die assembly comprises a workbench for placing workpieces and a driving structure for driving the upper die assembly;

[0018] The upper die assembly is movably arranged above the lower die assembly, the upper die assembly includes the punching device, and the driving structure drives the punching device to move up and down;

[0019] The middle die assembly is arranged on the punching device and is located between the lower die assembly and the upper die assembly. The middle die assembly includes the punching device. The pressing plate structure is directly opposite to the workbench from top to bottom.

[0020] In one embodiment, the stamping device includes an upper template and a stamping assembly; the upper template is connected to the driving structure; the stamping assembly is arranged on the side of the upper template close to the pressure plate structure; the stamping assembly includes a cylinder and a pressure block; the cylinder is fixed to the upper template, and the pressure block is fixed to the output shaft of the cylinder; the pressure block is in contact with the punch needle structure.

[0021] In one embodiment, the upper mold assembly also includes a CCD camera, which takes pictures of the workpiece on the workbench; the lower mold assembly also includes an XYY adjustment structure, which adjusts the position of the workpiece on the workbench according to the pictures taken by the CCD camera.

[0022] A punching method, using the punching platform, is characterized by comprising the following steps:

[0023] S10. The workpiece enters the workbench, and the CCD camera in each area captures the target on the workpiece on the workbench, calculates the coordinate difference between the current target coordinate and the reference target, calculates the difference between the current target and the reference target through the host computer, and then adjusts the position of the workpiece on the workbench through the XYY adjustment structure, so that the target on the workpiece coincides with the reference target, thereby completing the positioning work;

[0024] S20. The driving structure drives the punching device to press downward, and the punching device drives the pressure plate structure and the punching needle structure to move toward the workpiece; the pressure plate structure presses the workpiece; the punching needle structure passes through the pressure plate structure and punches the workpiece;

[0025] When the punching device drives the pressure plate structure and the punching needle structure to move toward the workpiece, the position of the punching needle structure relative to the pressure plate structure remains unchanged under the support of the elastic structure; when the punching device moves toward the workpiece to the second predetermined distance, the punching device contacts the head and drives the punching needle structure to move toward the workpiece;

[0026] S30. After the punching is completed, the driving structure drives the punching device to rise and drives the punch needle structure to separate from the workpiece, while the pressure plate structure continues to press the workpiece. After the punch needle structure moves to the predetermined distance, the punching device drives the pressure plate structure to separate from the workpiece, and the punching is completed.

[0027] The beneficial effect of the present application is that through the setting of the needle support structure, after the punching is completed, under the drive of the stamping device, the needle support structure lifts the punch needle structure away from the workpiece, and at this time the pressure plate structure continues to press the workpiece, and after the punch needle structure moves away from the workpiece to a predetermined distance, the stamping device will drive the pressure plate structure to separate from the workpiece, thereby effectively preventing the workpiece from being lifted up, effectively avoiding damage to the workpiece, and facilitating the subsequent transportation of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0029] Figure 1 A three-dimensional diagram of a stamping platform provided in an embodiment of the present application;

[0030] Figure 2 An exploded view of a stamping platform provided in an embodiment of the present application;

[0031] Figure 3 A three-dimensional diagram of a punching device provided in an embodiment of the present application;

[0032] Figure 4 A cross-sectional view of a punching device provided in an embodiment of the present application;

[0033] Figure 5 yes Figure 4 A partial enlarged view of the middle A;

[0034] Figure 6 A three-dimensional diagram of a stamping device provided in an embodiment of the present application.

[0035] Among them, the reference numerals in the figure are:

[0036] 1. Middle mold assembly 10. Punching device

[0037] 11. Platen structure 111. Platen

[0038] 112, positioning plate 101, guide hole

[0039] 12. Punch needle structure 121. Head

[0040] 122. Stamping part 123. End sleeve

[0041] 13. Needle support structure 131. Pull rod

[0042] 132, support plate 133, spring

[0043] 14. Elastic structure 15. First connecting rod

[0044] 16. Second connecting rod 2. Upper die assembly

[0045] 20. Punching device 21. Upper template

[0046] 22. Stamping assembly 221. Cylinder

[0047] 222, block 23, CCD camera

[0048] 3. Lower die assembly 31. Workbench

[0049] 32. Driving structure 33. XYY adjustment structure. DETAILED DESCRIPTION

[0050] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0051] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0052] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0053] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0054] See also Figures 1 to 6 The embodiment of the present application provides a punching device 10, which is used in conjunction with a punching device 20. The punching device 20 can be movably arranged. The punching device 10 includes:

[0055] The pressure plate structure 11 is connected to the punching device 20 and moves with the punching device 20. The pressure plate structure 11 is used to press the workpiece. Optionally, the workpiece is an inner layer PCB board. Of course, the workpiece can also be other processed products that need to be punched.

[0056] A punching needle structure 12 is movably connected to the pressing plate structure 11, and the punching needle structure 12 is located between the punching device 20 and the pressing plate structure 11; the punching needle structure 12 is used to punch a workpiece; and

[0057] The needle-supporting structure 13 has one end connected to the punching device 20 and moves with the punching device 20; the other end supports the punching needle structure 12; the needle-supporting structure 13 is located between the punching device 20 and the pressure plate structure 11. In the initial state, the needle-supporting structure 13 plays the role of supporting the punching needle structure 12. During the punching process, the needle-supporting structure 13 is pressed down and no longer supports the punching needle structure. At this time, the punching needle structure 12 is supported by the elastic structure, so the needle-supporting structure 13 will not drive the punching needle structure 12 to move during the pressing process.

[0058] When punching, the punching device 20 drives the pressure plate structure 11, the support needle structure 13 and the punch needle structure 12 to move toward the workpiece; the pressure plate structure 11 presses the workpiece; the punch needle structure 12 passes through the pressure plate structure 11 and punches the workpiece;

[0059] After punching, the punching device 20 drives the needle support structure 13 to move away from the workpiece, and the needle support structure 13 lifts the punching needle structure 12 away from the workpiece; the pressure plate structure 11 continues to press the workpiece, and after the punching needle structure 12 moves away from the workpiece to a predetermined distance, the punching device 20 drives the pressure plate structure 11 to separate from the workpiece. Through the setting of the needle support structure 13, after the punching is completed, driven by the punching device 20, the needle support structure 13 lifts the punching needle structure 12 away from the workpiece, while the pressure plate structure 11 continues to press the workpiece, and after the punching needle structure 12 moves away from the workpiece to a predetermined distance, the punching device 20 will drive the pressure plate structure 11 to separate from the workpiece, thereby effectively preventing the punching needle structure 12 from lifting the workpiece when it is separated from the workpiece, thereby effectively avoiding damage to the workpiece.

[0060] In one embodiment, the punching needle structure 12 includes a head 121 and a punching portion 122 connected to the head. The punching device 20 acts on the head 121; the punching portion 122 acts on the workpiece to punch. The head 121 is provided with an end sleeve 123 for dispersing the punching force. The end sleeve 123 is made of soft rubber material. The provision of the end sleeve 123 increases the service life of the punching needle structure 12. In order to prevent the end sleeve 123 from detaching from the punching needle structure 12 due to vibration, an anti-detachment member can be sandwiched between the end sleeve 123 and the head 121. The anti-detachment member can be a sealing ring.

[0061] In one embodiment, the punching portion 122 is provided with an elastic structure 14, one end of the elastic structure 14 abuts against the pressing plate structure 10, and the other end of the elastic structure 14 passes through the pin support structure 13 and abuts against the end of the head 121 away from the punching device 20. Optionally, the elastic structure 14 is a spring, and of course, the elastic structure 14 is not limited to a spring.

[0062] When the punching device 20 drives the pressure plate structure 11 and the needle support structure 13 to move toward the workpiece, the position of the punching needle structure 12 relative to the pressure plate structure 11 remains unchanged under the support of the elastic structure 14. In this process, one end of the elastic structure 14 is against the pressure plate structure 10 to form a support, so the position of the punching needle structure 12 relative to the pressure plate structure 11 remains unchanged. When the pressure plate structure 11 presses the workpiece, the punching needle structure 12 no longer moves with the pressure plate structure 11, and the punching device 20 continues to move toward the workpiece, and the contact head 121 drives the punching needle structure 12 to move toward the workpiece, and the punching part 122 passes through the pressure plate structure 11 to complete the punching of the workpiece. The setting of the elastic structure 14 ensures that the pressure plate structure 11 first presses the workpiece, and then the punching needle structure 12 punches the workpiece.

[0063] In one embodiment, the needle support structure 13 includes a pull rod 131, a support plate 132 and a spring 133. One end of the pull rod 131 passes through the punching device 20 and is movably connected to the punching device 20. After the pressure plate structure 11 presses the workpiece, in order to ensure that the punching device 20 can continue to press down, one end of the pull rod 131 passes through the punching device 20 and is movably connected to the punching device 20. The other end of the pull rod 131 is locked on the support plate 132, and the punching needle structure 12 is installed on the support plate 132. Specifically, the head 121 is supported on the support plate 132, and the punching part 122 is installed on the pressure plate structure 11. One end of the elastic structure 14 passes through the support plate 132 and abuts against the head 121; the spring 133 is sleeved outside the pull rod 131, one end of the spring 133 abuts on the support plate 132, and the other end abuts on the punching device 20. The punching device 20 moves toward the workpiece to compress the spring 133 and drive the support plate 132 to move toward the workpiece. The needle support structure 13 is cleverly designed. Before the needle support structure 13 contacts the pressure plate structure 11, it is pressed down with the punching device 20. After the needle support structure 13 contacts the pressure plate structure 11, it is no longer pressed down with the punching device 20, thereby avoiding interference in the stroke.

[0064] In one embodiment, the pressing plate structure 11 includes a pressing plate 111 and a positioning member 112; the pressing plate 111 is connected to the punching device 20 through a first connecting rod 15 and a second connecting rod 16, one end of the first connecting rod 15 is locked and connected to the pressing plate 111, and the other end is a radial reduction structure and is movably connected through the punching device 20. One end of the second connecting rod 16 is locked and connected to the punching device 20, and the other end is a radial reduction structure and is movably connected through the pressing plate 111, so that after the pressing plate structure 11 presses the workpiece, the punching device 20 can continue to press down. And, after the punching is completed, the pressing plate 111 rises behind the needle support structure 13. The positioning member 112 is arranged on the side of the pressing plate 111 close to the workpiece; the positioning member 112 presses the workpiece, and a guide hole 101 for guiding the punching needle structure is penetrated on the positioning member 112, and the punching part 122 accurately punches the workpiece through the guiding effect of the guide hole 101.

[0065] The present application also provides a stamping platform, including: a lower die assembly 3, an upper die assembly 2 and a middle die assembly 1; the lower die assembly 3 includes a workbench 31 for placing workpieces and a driving structure 32 for driving the upper die assembly to move; the top surface of the workbench 31 is a plane for placing workpieces, and a positioning structure for sucking the workpiece is provided on the workbench 31. Optionally, the driving structure 32 is a hydraulic cylinder, and the connecting rod of the hydraulic rod is connected to the upper die assembly 3, thereby driving the upper die assembly 2 to move.

[0066] The upper die assembly 2 is movably disposed above the lower die assembly 3 , and the upper die assembly 2 includes a punching device 20 . The driving structure 32 drives the punching device 20 to move up and down.

[0067] The middle die assembly 1 is disposed on the punching device 20 and is located between the lower die assembly 3 and the upper die assembly 2 . The middle die assembly 1 includes a punching device 10 , and the pressure plate structure 11 is vertically opposite to the workbench 31 .

[0068] In one embodiment, the punching device 20 includes an upper template 21 and a punching assembly 22; the upper template 21 is connected to the driving structure 32. The punching assembly 22 is arranged on the side of the upper template close to the platen structure 11; the punching assembly 22 includes a cylinder 221 and a pressing block 222; the cylinder 221 is fixed to the upper template 21, and the pressing block 222 is fixed to the output shaft of the cylinder 221; the upper template 21 presses down to drive the pressing block 222 to contact the punching needle structure 12, so that the punching needle structure 12 presses down to punch a hole. When using a punching needle structure 12 of different specifications, the cylinder 221 drives the pressing block 222 to extend a corresponding distance, which makes the selection more diverse and more convenient to use.

[0069] In one embodiment, the upper mold assembly 2 further includes a CCD camera 23, and there are multiple CCD cameras 23, each CCD camera 23 is distributed in each corresponding area of ​​the upper mold plate 21; the CCD camera 23 takes a picture of the workpiece on the workbench 31, and grasps the position of the workpiece on the workbench 31. The lower mold assembly 3 also includes an XYY adjustment structure 33, and the XYY adjustment structure 33 adjusts the position of the workpiece on the workbench 31 according to the picture taken by the CCD camera 23, so as to put the workpiece on the workbench 31 to ensure the accuracy of punching.

[0070] The present application also provides a punching method, using a punching platform, comprising the following steps:

[0071] S10. The workpiece enters the workbench 31, and the CCD camera 23 in each area grabs the target of the workpiece on the workbench 31, calculates the coordinate difference between the current target coordinate and the reference target, calculates the difference between the current target and the reference target through the host computer, and then adjusts the position of the workpiece on the workbench 31 through the XYY adjustment structure 33, so that the target on the workpiece coincides with the reference target, thereby completing the positioning work;

[0072] S20. The driving structure 32 drives the punching device 20 to press down, and the punching device 20 drives the pressure plate structure 11, the support needle structure 13 and the punch needle structure 12 to move toward the workpiece; the pressure plate structure 11 presses the workpiece; the punch needle structure 12 passes through the pressure plate structure 11 and completes the punching of the workpiece;

[0073] When the punching device 20 drives the pressure plate structure 11 and the punch needle structure 12 to move toward the workpiece, the position of the punch needle structure 12 relative to the pressure plate structure 11 remains unchanged under the support of the elastic structure 14; when the pressure plate structure 11 presses the workpiece, the punching device 20 continues to move toward the workpiece, and the contact head 121 drives the punch needle structure 12 to move toward the workpiece to complete the punching.

[0074] S30. After the punching is completed, the driving structure 32 drives the punching device 20 to rise, the punching device 20 drives the needle support structure 13 to rise, and drives the punching needle structure 12 to separate from the workpiece, while the pressure plate structure 11 continues to press the workpiece. After the punching needle structure 12 moves to a predetermined distance, the punching device 20 drives the pressure plate structure 11 to separate from the workpiece, and the punching is completed.

[0075] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A punching device, used in conjunction with a punching device, wherein the punching device is movably arranged, characterized in that: Punching device, comprising: A pressing plate structure, connected to the punching device and moving with the punching device, the pressing plate structure is used to press the workpiece; A punching needle structure, movably connected to the pressure plate structure, the punching needle structure is located between the punching device and the pressure plate structure; the punching needle structure is used to punch the workpiece; and A needle-supporting structure, one end of which is connected to the punching device and moves with the punching device; the other end of which supports the punching needle structure; the needle-supporting structure is located between the punching device and the pressure plate structure; When punching, the punching device drives the pressure plate structure, the support needle structure and the punch needle structure to move toward the workpiece; the pressure plate structure presses the workpiece; the punch needle structure passes through the pressure plate structure and punches the workpiece; After punching, the punching device drives the pin support structure to move away from the workpiece, and the pin support structure lifts the punching pin structure to separate from the workpiece; the pressure plate structure continues to press the workpiece, and after the punching pin structure moves away from the workpiece to a predetermined distance, the punching device drives the pressure plate structure to separate from the workpiece.

2. The punching device according to claim 1, characterized in that: The punching needle structure includes a punching needle; the punching needle includes a head and a punching part connected to the head, the punching device acts on the head, and the needle supporting structure supports the head; the punching part passes through the needle supporting structure and acts on the workpiece to punch.

3. The punching device according to claim 2, characterized in that: The punching part is covered with an elastic structure, one end of the elastic structure abuts against the pressing plate structure, and the other end of the elastic structure passes through the pin-supporting structure and abuts against the end of the head away from the punching device; When the punching device drives the pressure plate structure and the needle support structure to move toward the workpiece, the position of the needle structure relative to the pressure plate structure remains unchanged under the support of the elastic structure; when the pressure plate structure presses the workpiece, the punching device continues to move toward the workpiece and contacts the head to drive the needle structure to move toward the workpiece.

4. The punching device according to claim 3, characterized in that: The needle support structure includes a pull rod, a support plate and a spring, one end of the pull rod passes through the stamping device and is movably connected to the stamping device, the other end of the pull rod is locked on the support plate, the punch needle is installed on the support plate, one end of the elastic structure passes through the support plate and abuts against the head; the spring is sleeved outside the pull rod, one end of the spring abuts against the support plate, and the other end abuts against the stamping device, the stamping device moves toward the direction of the workpiece to compress the spring and drive the support plate to move toward the direction of the workpiece.

5. The punching device according to claim 2, characterized in that: The punch needle structure also includes an end sleeve for dispersing punching force, and the end sleeve is sleeved outside the head.

6. The punching device according to any one of claims 1 to 5, characterized in that: The pressure plate structure includes a pressure plate and a positioning member; the pressure plate is connected to the stamping device through a first connecting rod and a second connecting rod, one end of the first connecting rod is locked and connected to the pressure plate, and the other end is a radial reduction structure and is movably connected through the stamping device; one end of the second connecting rod is locked and connected to the stamping device, and the other end is a radial reduction structure and is movably connected through the pressure plate; the positioning member is arranged on the side of the pressure plate close to the workpiece; the positioning member presses the workpiece, and a guide hole for guiding the punching needle structure is penetrated through the positioning member.

7. A stamping platform, characterized in that: include: Lower die assembly, upper die assembly and middle die assembly; the lower die assembly includes a workbench for placing workpieces and a driving structure for driving the upper die assembly activities; The upper die assembly is movably disposed above the lower die assembly, the upper die assembly comprises the punching device as claimed in claim 3 or 4, and the driving structure drives the punching device to move up and down; The middle die assembly is arranged on the stamping device and is located between the lower die assembly and the upper die assembly. The middle die assembly includes the punching device as described in claim 3 or 4. The pressure plate structure is directly opposite to the workbench up and down.

8. The punching platform according to claim 7, characterized in that: The stamping device includes an upper template and a stamping assembly; the upper template is connected to the driving structure; the stamping assembly is arranged on the side of the upper template close to the pressure plate structure; the stamping assembly includes a cylinder and a pressure block; the cylinder is fixed to the upper template, and the pressure block is fixed to the output shaft of the cylinder; the pressure block is in contact with the punch needle structure.

9. The punching platform according to claim 7, characterized in that: The upper mold assembly also includes a CCD camera, which takes pictures of the workpiece on the workbench; the lower mold assembly also includes an XYY adjustment structure, which adjusts the position of the workpiece on the workbench according to the pictures taken by the CCD camera.

10. A punching method, using the punching platform as claimed in claim 9, characterized in that: Includes the following steps: S10. The workpiece enters the workbench, and the CCD camera in each area captures the target of the workpiece on the workbench, calculates the coordinate difference between the current target coordinate and the reference target, calculates the difference between the current target and the reference target through the host computer, and then adjusts the position of the workpiece on the workbench through the XYY adjustment structure, so that the target on the workpiece coincides with the reference target, thereby completing the positioning work; S20. The driving structure drives the punching device to press down, and the punching device drives the pressure plate structure, the support needle structure and the punching needle structure to move toward the workpiece; the pressure plate structure presses the workpiece; the punching needle structure passes through the pressure plate structure and punches the workpiece; When the punching device drives the pressure plate structure and the punch needle structure to move toward the workpiece, the position of the punch needle structure relative to the pressure plate structure remains unchanged under the support of the elastic structure; after the pressure plate structure presses the workpiece, the punching device continues to move toward the workpiece and contacts the head to drive the punch needle structure to move toward the workpiece; S30. After the punching is completed, the driving structure drives the punching device to rise, the punching device drives the support needle structure to rise, and drives the punching needle structure to separate from the workpiece, while the pressure plate structure continues to press the workpiece, and after the punching needle structure moves to the predetermined distance, the punching device drives the pressure plate structure to separate from the workpiece, and the punching is completed.

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