Nanocrystalline coiled material punching forming device

Abstract

The utility model relates to a nanocrystalline coiled material punching forming device, and relates to the technical field of punching machining. Comprising a first punching die, a second punching die, a punching cutter and a pressure stopping plate, the second punching die and the first punching die are oppositely arranged, and the second punching die moves in the direction close to or away from the first punching die. The punching cutter is arranged on the side, close to the first punching die, of the second punching die, and the punching cutter is used for punching the appearance of the nanocrystalline coiled material; the pressure stopping plate is arranged on the side, close to the first punching die, of the second punching die and connected with the second punching die in a sliding mode. The punching cutter abuts against the first punching die, so that appearance punching of the nanocrystalline coiled material is achieved. According to the die-cutting forming device for the nanocrystalline coiled material, the nanocrystalline coiled material is limited by the pressure stopping plate in the die-cutting process, the stability of die-cutting of the nanocrystalline coiled material by the die-cutting forming device for the nanocrystalline coiled material is improved, full-breaking die-cutting of the nanocrystalline coiled material is achieved, and the problem that an existing die-cutting forming device cannot carry out full-breaking die-cutting on the nanocrystalline coiled material at a time is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of punching and cutting, in particular to a nanocrystalline coiled material punching and forming device. Background Art

[0002] Nowadays, mobile phones, tablets, computers and other electronic products are being updated and replaced at a faster and faster pace in the market, and the application of wireless charging is becoming more and more extensive. The requirements for charging efficiency are getting higher and higher, and the application of nanocrystals will gradually become more extensive. Improving the processing methods of nanocrystal materials will help reduce product costs and promote the application of nanocrystals to a wider range of fields.

[0003] Before the nanocrystalline material is put into use, the nanocrystalline coil needs to be punched to punch out the shape of the nanocrystal. However, the existing punching and forming devices have great difficulties in punching multi-layered nanocrystals. It is impossible to punch out the shape of the nanocrystal in one go. The nanocrystal needs to be punched multiple times, resulting in low production efficiency.

[0004] With respect to the above-mentioned related technologies, there is a problem that the existing punching and forming devices cannot completely punch and cut the nanocrystalline coil at one time. Utility Model Content

[0005] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a nanocrystalline coil punching and forming device, aiming to solve the problem that the existing punching and forming device cannot completely punch and cut the nanocrystalline coil at one time.

[0006] The present application provides a nanocrystalline coil punching and forming device that adopts the following technical solution: a nanocrystalline coil punching and forming device, comprising:

[0007] A first punching die;

[0008] A second punching die is arranged opposite to the first punching die; the second punching die moves toward or away from the first punching die; the second punching die is provided with a coil processing channel for the nanocrystalline coil to pass through;

[0009] A punching tool, arranged on a side of the second punching die close to the first punching die, the punching tool being used for punching the nanocrystalline coil;

[0010] A pressure stop plate is arranged on a side of the second punching die close to the first punching die, and the pressure stop plate is used to cooperate with the second punching die to limit the position of the nanocrystalline coil.

[0011] Optionally, a guide column is provided on a side of the second punching die close to the first punching die, and the pressure stop plate is slidably connected to the guide column.

[0012] Optionally, a avoidance groove is provided on a side of the first punching die facing the second punching die, and the avoidance groove is arranged opposite to the guide column.

[0013] Optionally, an elastic member is provided between the pressure stop plate and the second punching die.

[0014] Optionally, at least two pressure stop plates are provided, at least two of the pressure stop plates are provided on both sides of the coil processing channel, and the punching tool is provided between the at least two pressure stop plates.

[0015] Optionally, a side of the first punching die close to the second punching die is provided with an avoidance edge, and the avoidance edge is arranged opposite to the punching tool.

[0016] Optionally, the punching tool is a tungsten steel punching tool.

[0017] Optionally, the first punching die is a composite hardware first punching die; and / or,

[0018] The second punching die is a composite hardware second punching die.

[0019] Optionally, the first punching die includes a first die base and a first punching extrusion, and the first punching extrusion is arranged on a side of the first die base close to the second punching die.

[0020] Optionally, the second punching die includes a second die base and a second punching extrusion, the second punching extrusion is arranged on a side of the second die base close to the first punching die, and the pressure stop plate is arranged on a side of the second punching extrusion close to the first punching die.

[0021] Compared with the prior art, the embodiment of the utility model has the following advantages:

[0022] When the nanocrystalline coil is to be punched, the nanocrystalline coil is placed between the pressure stop plate and the second punching die, and then the second punching die moves in the direction close to the first punching die, and finally the punching tool on the second punching die abuts against the first punching die, so that the punching tool punches the shape of the nanocrystalline coil. Since the nanocrystalline coil is limited by the pressure stop plate during the punching process, the stability of the nanocrystalline coil punching by the nanocrystalline coil punching forming device is improved, thereby achieving one-time full-cut punching of the nanocrystalline coil, improving the punching efficiency of the nanocrystalline coil, reducing the cost of the product, and solving the problem that the existing punching forming device cannot perform one-time full-cut punching of the nanocrystalline coil. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, 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 recorded in the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 This is a schematic diagram of the overall structure of a nanocrystalline coil punched and formed in an embodiment of the present application;

[0025] Figure 2 It is a top view of a second punching die for punching and forming a nanocrystalline coil in an embodiment of the present application.

[0026] Description of reference numerals:

[0027] 1. First punching die; 11. First die base; 12. First punching extrusion member; 121. Avoidance groove; 122. Avoidance blade; 2. Second punching die; 21. Second die base; 22. Second punching extrusion member; 221. Guide column; 23. Elastic member; 3. Punching tool; 4. Stop pressure plate; 41. Sliding part; 42. Stop pressure part; 421. Stop pressure groove; 5. Coil processing channel. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the solution of the utility model, the following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] The present application is further described in detail below in conjunction with the accompanying drawings.

[0030] The embodiment of the present application discloses a nanocrystalline coil punching and forming device.

[0031] like Figure 1 and Figure 2As shown, a nanocrystalline coil punching and forming device includes a first punching die 1, a second punching die 2, a punching tool 3 and a pressure stop plate 4; the second punching die 2 is arranged opposite to the first punching die 1, and the second punching die 2 moves towards or away from the first punching die 1; the second punching die 2 is provided with a coil processing channel 5 for the nanocrystalline coil to pass through; the punching tool 3 is arranged on the side of the second punching die 2 close to the first punching die 1, and the punching tool 3 is used to punch the nanocrystalline coil; the pressure stop plate 4 is arranged on the side of the second punching die 2 close to the first punching die 1, and the pressure stop plate 4 is used to cooperate with the second punching die 2 to limit the nanocrystalline coil.

[0032] When the nanocrystalline coil is to be punched, the nanocrystalline coil is placed between the stop plate 4 and the second punching die 2, and then the second punching die 2 moves in the direction close to the first punching die 1, and finally the punching tool 3 on the second punching die 2 abuts against the first punching die 1, so that the punching tool 3 punches the nanocrystalline coil. Since the nanocrystalline coil is limited by the stop plate 4 during the punching process, the stability of the nanocrystalline coil punching by the nanocrystalline coil punching forming device is improved, thereby achieving one-time full-cut punching of the nanocrystalline coil, improving the punching efficiency of the nanocrystalline coil, reducing the cost of the product, and solving the problem that the existing punching forming device cannot punch the nanocrystalline coil in one time.

[0033] Specifically, at least two pressure stop plates 4 are provided, at least two pressure stop plates 4 are provided on both sides of the coil processing channel 5 , and the punching tool 3 is provided between the at least two pressure stop plates 4 .

[0034] Since the punching tool 3 is arranged between at least two pressure-stopping plates, the nanocrystalline coil is limited by the pressure-stopping plates 4 during the punching process, thereby improving the stability of the pressure-stopping plates 4 in punching the nanocrystalline coil.

[0035] The first punching die 1 comprises a first die base 11 and a first punching extrusion 12 . The first punching extrusion 12 is arranged on a side of the first die base 11 close to the second punching die 2 .

[0036] The second punching die 2 includes a second die base 21 and a second punching extrusion 22 . The second punching extrusion 22 is arranged on a side of the second die base 21 close to the first punching die 1 . The stop plate 4 is arranged on a side of the second punching extrusion 22 close to the first punching die 1 .

[0037] Specifically, the first die base 11 and the first punching extrusion 12 are both rectangular in shape. In order to improve the stability of the nanocrystalline coil punching process and the service life of the first die base 11, the surface area of ​​the first punching extrusion 12 facing the second punching die 2 is smaller than the surface area of ​​the first die base 11 facing the second punching die 2.

[0038] Similarly, the second die base 21 and the second punching extrusion 22 are both rectangular in shape. In order to improve the stability of the nanocrystalline coil punching process and the service life of the second die base 21, the surface area of ​​the second punching extrusion 22 facing the first punching die 1 is smaller than the surface area of ​​the second die base 21 facing the first punching die 1.

[0039] A guide column 221 is provided on one side of the second punching die 2 close to the first punching die 1 , and the pressure stop plate 4 is slidably connected to the guide column 221 .

[0040] Specifically, a plurality of guide posts 221 are provided on a side of the second punching die 2 close to the first punching die 1 , and each pressure stop plate 4 is slidably connected to at least one guide post 221 .

[0041] The guide column 221 is arranged on the second punching extrusion piece 22 , and is arranged along the moving direction of the second punching mold 2 . In this embodiment, the second mold base 21 moves in the vertical direction, so the guide column 221 is arranged vertically to the second punching extrusion piece 22 .

[0042] The pressure stop plate 4 is provided with a sliding hole, through which the pressure stop plate 4 is slidingly connected to the guide column 221 , and the pressure stop plate 4 can move along the guide column 221 toward or away from the second punching extrusion piece 22 .

[0043] In the process of punching the nanocrystalline coil, the nanocrystalline coil is first placed on the second punching extrusion 22, and then the stop plate 4 is installed on the guide column 221, so that the nanocrystalline coil is placed between the stop plate 4 and the second punching extrusion 22. Then the second punching die 2 moves in the direction close to the first punching die 1, and finally the stop plate 4 abuts against the first punching extrusion 12. Under the pressure of the first punching extrusion 12, the nanocrystalline coil between the stop plate 4 and the second punching extrusion 22 is clamped, which facilitates the punching tool 3 to punch and cut the nanocrystalline coil.

[0044] A side of the first punching die 1 facing the second punching die 2 is provided with an avoidance groove 121 , and the avoidance groove 121 is arranged opposite to the guide column 221 .

[0045] Specifically, a side of the first punching die 1 facing the second punching die 2 is provided with an avoidance groove 121 , and a plurality of avoidance grooves 121 are provided.

[0046] Each guide column 221 has at least one avoidance groove 121 corresponding thereto.

[0047] The avoidance grooves are arranged on the first punching extrusion 12, and the number and positions of the avoidance grooves correspond to the number and positions of the guide columns 221, that is, when the second punching die 2 moves in the direction close to the first punching die 1, each guide column 221 can extend into the corresponding avoidance groove, thereby preventing the end of the guide column 221 from abutting against the first punching extrusion 12, which makes it impossible for the pressure stop plate 4 to abut against the first punching extrusion 12, and the pressure stop plate 4 cannot apply a sufficiently large extrusion force to the nanocrystalline coil, resulting in unstable restriction of the nanocrystalline coil by the pressure stop plate 4, and also avoiding the phenomenon that the punching tool 3 cannot successfully punch out the shape of the nanocrystalline coil due to the end of the guide column 221 abutting against the first punching extrusion 12.

[0048] An elastic member 23 is provided between the pressure stop plate 4 and the second punching die 2 .

[0049] Specifically, an elastic member 23 is provided between the pressure stop plate 4 and the second punching die 2 .

[0050] Each pressure stop plate 4 is slidably connected to at least two guide pillars 221 .

[0051] At least two elastic members 23 are arranged between each pressure stop plate 4 and the second punching die 2 .

[0052] In order to improve the stability of the nanocrystalline coil punching process, the coil processing channel of the nanocrystalline coil on the second punching extrusion 22 is located on the central axis of the second punching extrusion 22 .

[0053] There are two pressure stop plates 4, which are respectively located at opposite sides of the coil processing channel. The pressure stop plate 4 includes a sliding portion 41 and a pressure stop portion 42. The sliding hole is arranged on the sliding portion 41.

[0054] Two sliding holes are provided on the sliding part 41, and the two sliding holes are provided on the sliding part 41 along the coil processing channel. In order to improve the stability of the force after the pressure stop plate 4 and the guide column 221 slide and cooperate, the two sliding holes are provided at the opposite ends of the sliding part 41 along the coil processing channel. Two guide columns 221 are also provided on both sides of the coil processing channel, and the two guide columns 221 on both sides of the coil processing channel are provided one-to-one with the two sliding holes on both sides of the coil processing channel. Correspondingly, four corresponding avoidance grooves 121 are provided at the positions corresponding to the four guide columns 221 on the first punching extrusion part 12.

[0055] The pressure stop portion 42 is located on one side of the sliding portion 41 close to the coil processing channel. When the pressure stop plate 4 is slidably connected with the guide column 221, the pressure stop portion 42 will extend into the coil processing channel so that the pressure stop portion 42 and the second punching and extrusion member 22 can press the nanocrystalline coil.

[0056] A plurality of pressure-stopping grooves 421 are arranged at intervals on the side wall of the pressure-stopping portion 42 near the other pressure-stopping plate 4, so that the shape of the pressure-stopping plate 4 is comb-shaped as a whole. In addition, the plurality of pressure-stopping grooves 421 on the two opposite pressure-stopping portions 42 are arranged in an interlaced manner, that is, a pressure-stopping groove 421 on one pressure-stopping portion 42 is not arranged opposite to a pressure-stopping groove 421 on the other pressure-stopping portion 42. The arrangement of the pressure-stopping grooves 421 ensures that the contact area between the pressure-stopping portion 42 and the nanocrystalline coil is reduced without affecting the extrusion effect of the pressure-stopping portion 42 on the nanocrystalline coil, thereby reducing the occurrence of damage to the nanocrystalline coil caused by the extrusion of the pressure-stopping portion 42.

[0057] The staggered arrangement of the multiple pressure-stop grooves 421 on the two pressure-stop portions 42 can ensure that during the punching process of the nanocrystalline coil, the multiple pressure-stop grooves 421 on the two pressure-stop portions 42 will not cause the nanocrystalline coil to be subjected to a large tearing concentrated force in the direction perpendicular to the coil processing channel due to the relative arrangement, resulting in unsatisfactory punching effect or failure of the nanocrystalline coil shape.

[0058] In this embodiment, the elastic member 23 is a telescopic spring. One end of the elastic member 23 passes through the second punching and extruding member 22 and is disposed on the second mold base 21 , and the other end of the elastic member 23 abuts against the pressure stop plate 4 .

[0059] Due to the setting of the elastic member 23, the pressure stop plate 4 will be supported by the elastic member 23, and a gap will be left between the pressure stop plate 4 and the second punching and extruding member 22, and the nanocrystalline coil is located in the gap. When the second punching die 2 moves in the direction close to the first punching die 1, the pressure stop plate 4 will abut against the surface of the first punching and extruding member 12. At this time, under the action of pressure, the pressure stop plate 4 will compress the elastic member 23, so that the gap gradually decreases, and finally the nanocrystalline coil is pressed and fixed, which facilitates the punching tool 3 to punch and cut the nanocrystalline coil completely.

[0060] The setting of the elastic member 23 ensures that the pressure stop plate 4 will not directly contact the nanocrystalline coil before receiving the pressure from the first punching extrusion member 12, which makes it convenient to adjust the position of the nanocrystalline coil at any time before the nanocrystalline coil is punched. The setting of the elastic member 23 also has a buffering effect, and the setting of the elastic member 23 can overcome the weight of the pressure stop plate 4 itself. The pressure provided by the pressure stop plate 4 on the nanocrystalline coil is completely affected by the force applied by the first punching extrusion member 12 to the pressure stop plate 4. The pressure stopping effect of the pressure stop plate 4 can be flexibly adjusted by controlling the extrusion force applied by the first punching extrusion member 12 to the pressure stop plate 4, so as to achieve the limitation of the nanocrystalline coil without damaging the nanocrystalline coil.

[0061] In this embodiment, each pressure-stopping plate 4 is correspondingly provided with two elastic members 23 , and the two elastic members 23 are disposed between the two guide pillars 221 .

[0062] A side of the first punching die 1 close to the second punching die 2 is provided with an avoidance edge 122 , and the avoidance edge 122 is arranged opposite to the punching tool 3 .

[0063] Specifically, the punching tool 3 is arranged between the two pressure-stopping plates 4, and the punching tool 3 is arranged on the second die base 21, and the punching tool 3 passes through the second punching extrusion member 22 and extends out. The end face of the punching tool 3 is flush with the side of the pressure-stopping plate 4 close to the first punching die 1 before punching, and the shape of the punching tool 3 is the shape to be punched by the nanocrystalline coil. The outer periphery of the end of the punching tool 3 close to the first punching die 1 is the punching portion, and the punching portion is used to punch the nanocrystalline coil.

[0064] The avoidance blade 122 is arranged on a side of the first punching extrusion member 12 close to the second punching die 2, and the avoidance blade 122 is arranged opposite to the punching tool 3. The shape of the avoidance blade 122 is the shape of the nanocrystalline coil to be punched. The opening size of the avoidance blade 122 is larger than the size of the punching tool 3, so that the punching tool 3 can penetrate into the avoidance blade 122. It should be noted that the opening size of the avoidance blade 122 can be adjusted according to the thickness of the material to be punched, and is not limited here.

[0065] When the second punching die 2 moves in the direction close to the first punching die 1, the pressure stop plate 4 will abut against the surface of the first punching extrusion 12. At this time, under the action of pressure, the pressure stop plate 4 will compress the elastic member 23, and the pressure stop plate 4 will move in the direction close to the second punching extrusion 22, and the punching tool 3 will extend into the avoidance edge 122. The punching tool 3 extends into the avoidance edge 122 until the punching part cuts off the nanocrystalline coil and abuts against the bottom wall of the avoidance edge 122, and finally punches out the shape of the nanocrystalline coil, thereby achieving full cutting of the nanocrystalline coil.

[0066] According to production needs and to improve production efficiency, multiple punching tools 3 are provided so that multiple nanocrystalline coils can be punched out simultaneously in one punching process. At the same time, multiple avoidance edges 122 are provided, and the punching tools 3 and the avoidance edges 122 are provided one by one.

[0067] In this embodiment, the number of punching tools 3 is three.

[0068] The first punching die 1 is a composite hardware first punching die; and / or,

[0069] The second punching die 2 is a composite hardware second punching die.

[0070] The punching tool 3 is a tungsten steel punching tool 3.

[0071] Specifically, since the hardness of nanocrystalline is higher than that of ordinary die-cutting materials, the blade loss is serious during the processing process, and the life of the die is shortened. Existing punching dies generally use coated engraving dies, and the maximum number of punching times of coated engraving dies is 4K punches. Frequent replacement of dies leads to increased machine adjustment loss, and low efficiency and yield. Therefore, in order to increase the service life of the nanocrystalline coil punching and forming device and reduce the problem of exponentially increased material loss costs due to frequent mold replacement, in this embodiment, the nanocrystalline coil punching and forming device adopts a composite hardware die, that is, the first punching die 1 is a composite hardware first punching die, the second punching die 2 is a composite hardware second punching die, and the punching tool 3 is a tungsten steel punching tool 3 with a relatively long service life.

[0072] Compare the nanocrystalline coils processed by coating engraving molds with those processed by composite hardware molds.

[0073] The service life of the improved composite hardware mold can be increased from the original 3K punches to 100K punches.

[0074] Before the improvement, the coating engraving die needed to be adjusted 66 times, with an average of 30 minutes per time, and the total adjustment time was 19.8 hours. The material for each adjustment was 10 meters, and the total adjustment material was 660 meters.

[0075] After the improvement, the composite hardware mold only needs to be adjusted once, which takes an average of 30 minutes per time. The total mold adjustment time is 0.5 hours. The single adjustment of machine material is 10 meters, and the total adjustment of machine material is 10 meters.

[0076] In summary, a nanocrystalline coil punching and forming device includes a first punching die 1, a second punching die 2, a punching tool 3 and a pressure stop plate 4; the second punching die 2 is arranged opposite to the first punching die 1, and the second punching die 2 moves towards or away from the first punching die 1; the second punching die 2 is provided with a coil processing channel 5 for the nanocrystalline coil to pass through; the punching tool 3 is arranged on the side of the second punching die 2 close to the first punching die 1, and the punching tool 3 is used to punch the nanocrystalline coil; the pressure stop plate 4 is arranged on the side of the second punching die 2 close to the first punching die 1, and the pressure stop plate 4 is used to cooperate with the second punching die 2 to limit the nanocrystalline coil.

[0077] When the nanocrystalline coil is to be punched, the nanocrystalline coil is placed between the stop plate 4 and the second punching die 2, and then the second punching die 2 moves in the direction close to the first punching die 1, and finally the punching tool 3 on the second punching die 2 abuts against the first punching die 1, so that the punching tool 3 punches the nanocrystalline coil. Since the nanocrystalline coil is limited by the stop plate 4 during the punching process, the stability of the nanocrystalline coil punching by the nanocrystalline coil punching forming device is improved, thereby achieving one-time full-cut punching of the nanocrystalline coil, improving the punching efficiency of the nanocrystalline coil, reducing the cost of the product, and solving the problem that the existing punching forming device cannot punch the nanocrystalline coil in one time.

[0078] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other.

[0079] It should be noted that the present invention takes a nanocrystalline coil punching and forming device as an example to introduce the specific structure and working principle of the present invention, but the application of the present invention is not limited to a nanocrystalline coil punching and forming device, and can also be applied to the production and use of other similar workpieces.

[0080] It should be understood that the present invention is not limited to the precise structure described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

[0081] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A nanocrystalline coil punching and forming device, characterized in that: include: A first punching die; A second punching die is arranged opposite to the first punching die; the second punching die moves toward or away from the first punching die; The second punching die is provided with a coil processing channel for the nanocrystalline coil to pass through; A punching tool, arranged on a side of the second punching die close to the first punching die, the punching tool being used for punching the nanocrystalline coil; A pressure stop plate is arranged on a side of the second punching die close to the first punching die, and the pressure stop plate is used to cooperate with the second punching die to limit the position of the nanocrystalline coil.

2. The nanocrystalline coil punching and forming device according to claim 1, characterized in that: A guide column is arranged on one side of the second punching die close to the first punching die, and the pressure stop plate is slidably connected to the guide column.

3. The nanocrystalline coil punching and forming device according to claim 2, characterized in that: A side of the first punching die facing the second punching die is provided with an avoidance groove, and the avoidance groove is arranged opposite to the guide column.

4. The nanocrystalline coil punching and forming device according to claim 2, characterized in that: An elastic member is arranged between the pressure stop plate and the second punching die.

5. The nanocrystalline coil punching and forming device according to claim 1, characterized in that: At least two of the pressure stop plates are provided, and at least two of the pressure stop plates are provided on both sides of the coil processing channel, and the punching tool is provided between the at least two of the pressure stop plates.

6. The nanocrystalline coil punching and forming device according to claim 1, characterized in that: A side of the first punching die close to the second punching die is provided with an avoidance edge, and the avoidance edge is arranged opposite to the punching tool.

7. The nanocrystalline coil punching and forming device according to claim 1, characterized in that: The punching tool is a tungsten steel punching tool.

8. The nanocrystalline coil punching and forming device according to claim 1, characterized in that: The first punching die is a composite hardware first punching die; and / or, The second punching die is a composite hardware second punching die.

9. The nanocrystalline coil punching and forming device according to claim 1, characterized in that: The first punching die includes a first die base and a first punching extrusion piece, and the first punching extrusion piece is arranged on a side of the first die base close to the second punching die.

10. The nanocrystalline coil punching and forming device according to claim 1, characterized in that: The second punching die includes a second die base and a second punching extrusion member, the second punching extrusion member is arranged on a side of the second die base close to the first punching die, and the pressure stop plate is arranged on a side of the second punching extrusion member close to the first punching die.

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