Blanking die and blanking device

Abstract

The utility model belongs to the field of blanking dies, and particularly relates to a blanking die and a blanking device.The blanking die comprises a lower die assembly and an upper die assembly, in the using process, a base material is placed on a female die of the lower die assembly, the upper die assembly is driven by a lifting mechanism to move downwards as a whole, and due to the fact that the lower end face of a male die is lower than the lower end face of a punch and the lower end face of an upper die plate, the whole blanking die is not damaged; the lower end face of the male die firstly presses a base material on the female die, along with continuous pressure application of the lifting mechanism, the fixing plate overcomes the elastic force of the elastic reset piece to continue to move downwards, the punch and the upper die plate are driven to continue to descend, the punch is correspondingly inserted into a blanking hole in the female die, the part, corresponding to the blanking hole, of the base material is cut to form a hole, and the female die is correspondingly sleeved with the upper die plate. And cutting off the material on the outer edge of the female die to finally form a product with a certain shape and size and holes. By using the blanking die and the blanking device, a product with a certain shape and size and a hole can be obtained through one-time blanking, the operation is simple, and the production efficiency is high.

Description

Technical Field

[0001] The present application relates to the technical field of punching dies, and in particular to a punching die and a punching device. Background Art

[0002] Blanking is a stamping process that uses a die to separate part of the material or process parts from another part of the material, process parts or waste. Blanking is a general term for separation processes such as shearing, blanking, punching, notching, notching, cutting, chiseling, trimming, tongue cutting, cutting, and trimming.

[0003] The punching die generally completes the cutting through the cooperation of the upper die and the lower die. For products with certain shapes and sizes and holes, first a set of upper and lower dies are required to separate the sheets of the required shape and size from the parent material, and then the sheets are punched through another set of upper and lower dies to form products with holes. In this way, at least two sets of dies and two-step processes are required to obtain the required products, which is complicated to operate and has low production efficiency. Utility Model Content

[0004] The embodiments of the present application provide a punching die and a punching device, which are intended to obtain a product with a certain shape and size and holes through a one-step operation of a punching die, with simple operation and high production efficiency.

[0005] To this end, according to one aspect of the present application, a punching die is provided, comprising:

[0006] A lower die assembly, comprising a lower die base and a mother die arranged on the lower die base, wherein the mother die is provided with a blanking hole; and

[0007] An upper die assembly is located above the lower die assembly, and the upper die assembly includes a fixed plate, an upper die seat, an upper die plate, a male die, a punch and an elastic reset member. The fixed plate, the upper die seat and the upper die plate are arranged in sequence from top to bottom. The upper die plate is provided with a through hole adapted to the shape of the female die, the male die is slidably arranged in the through hole, and the male die is provided with a through hole corresponding to the blanking hole; the upper end of the punch is connected to the fixed plate, and the lower end is inserted into the through hole; the elastic reset member is arranged between the fixed plate and the male die, and in the initial state of the elastic reset member, the lower end surface of the male die is lower than the lower end surface of the punch and the upper die plate.

[0008] Optionally, the female mold is provided with a plurality of the blanking holes, the male mold is provided with a plurality of the through holes corresponding one-to-one to the plurality of the blanking holes, and the upper mold assembly includes a plurality of the punches, the upper ends of the plurality of the punches are connected to the fixed plate, and the lower ends are respectively inserted into the plurality of the through holes in a one-to-one correspondence.

[0009] Optionally, the upper mold assembly also includes a connecting plate, the upper mold base is provided with an avoidance hole extending upward and downward, the fixed plate is provided with a connecting portion corresponding to the avoidance hole, the connecting plate is arranged at the lower end of the connecting portion, and the upper ends of the plurality of punches are arranged in the connecting plate.

[0010] Optionally, the upper mold assembly further includes a first elastic member, and the first elastic member is disposed between the upper mold base and the fixed plate.

[0011] Optionally, the first elastic member includes a compression spring, and fixing grooves are relatively provided on the upper surface of the upper mold base and the lower surface of the fixed plate, and the upper and lower ends of the compression spring are respectively embedded in the fixing grooves on the fixed plate and the upper mold base.

[0012] Optionally, the upper mold assembly also includes a connecting seat for connecting the lifting mechanism, the connecting seat is arranged at the upper end of the fixed plate, the side of the connecting seat has a downward extending limit hook, the side of the upper mold seat is provided with an outward protruding limit flange, and the lower end surface of the limit flange is against the limit hook.

[0013] Optionally, the lower mold assembly also includes a lower release plate and a second elastic member, the lower release plate is provided with a accommodating hole adapted to the shape of the mother mold, the lower release plate is movably sleeved on the outer side of the mother mold, the second elastic member is arranged between the lower mold base and the lower release plate, and in the initial state of the second elastic member, the upper surface of the lower release plate is flush with the upper surface of the mother mold.

[0014] Optionally, the punching die further includes a guide assembly, which is disposed between the lower die base and the upper die plate and is used to guide the upper die plate to approach or move away from the mother die.

[0015] Optionally, the guide assembly includes a guide member disposed on the lower mold base and extending vertically upward, and a sliding member disposed on the upper mold plate, wherein the sliding member is slidably disposed on the guide member.

[0016] According to another aspect of the present application, there is provided a punching device, comprising:

[0017] A blanking die as described above; and

[0018] A lifting mechanism, wherein a driving end of the lifting mechanism is connected to the fixing plate, and under the action of the lifting mechanism, the upper mold assembly as a whole moves closer to or away from the lower mold assembly.

[0019] The beneficial effects of the punching die and punching device provided by the present application are as follows: compared with the prior art, the punching die of the present application includes a lower die assembly and an upper die assembly, the female die of the lower die assembly is provided with a blanking hole, the upper die plate of the upper die assembly is provided with a through hole adapted to the shape of the female die, a male die is slidably arranged in the through hole, a through hole corresponding to the blanking hole is arranged on the male die, the upper end of the punch is connected to the fixed plate, and the lower end is inserted into the through hole; an elastic reset member is arranged between the fixed plate and the male die, and in the initial state of the elastic reset member, the lower end face of the male die is lower than the lower end faces of the punch and the upper die plate. During the use of the punching die, the mother material is placed on the mother die of the lower die assembly, and the upper die assembly moves downward as a whole under the drive of the lifting mechanism. Since the lower end surface of the male die is lower than the lower end surfaces of the punch and the upper template, the lower end surface of the male die first presses the mother material on the mother die to prevent the mother material from slipping during the subsequent punching process. As the lifting mechanism continues to apply pressure, the fixed plate continues to move downward to overcome the elastic force of the elastic reset part, driving the punch and the upper template to continue to descend, and the punch is correspondingly inserted into the blanking hole on the mother die, and the part of the mother material corresponding to the blanking hole is cut to form a hole. The upper template is correspondingly sleeved on the outside of the mother die, and the material on the outer edge of the mother die is cut off, finally forming a product with a certain shape and size and with holes.

[0020] By using the punching die and the punching device, a product with a certain shape and size and holes can be obtained through one punching, which is simple to operate and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application 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 of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] in:

[0023] Figure 1 is a schematic diagram of the three-dimensional structure of a punching die shown in an embodiment of the present application;

[0024] Figure 2 yes Figure 1 The cross-sectional schematic diagram of the blanking die in the XOZ plane is shown;

[0025] Figure 3 yes Figure 1 The cross-sectional schematic diagram of the blanking die in the YOZ plane is shown;

[0026] Figure 4 is a schematic cross-sectional structural diagram of a blanking die at a guide assembly shown in one embodiment of the present application;

[0027] Figure 5It is a schematic diagram of the three-dimensional structure of a punching device shown in one embodiment of the present application.

[0028] Description of main component symbols:

[0029] 1. Lifting mechanism;

[0030] 10. lower die assembly; 11. lower die seat; 12. mother die; 121. blanking hole; 13. lower pad; 14. lower clamping plate; 15. lower stripping plate; 151. accommodating hole; 16. second elastic member;

[0031] 20. Upper die assembly; 21. Fixing plate; 211. Connecting part; 22. Upper die seat; 221. Avoidance hole; 222. Limiting flange; 23. Upper die plate; 231. Through hole; 24. Male die; 241. Through hole; 25. Punch; 26. Elastic reset member; 27. First elastic member; 28. Upper clamping plate; 29. ​​Connecting seat; 291. Limiting hook; 210. Connecting plate;

[0032] 30. Guide assembly; 31. Guide member; 32. Sliding member. DETAILED DESCRIPTION

[0033] In order to facilitate the understanding of the present application, the present application will be described more comprehensively with reference to the relevant drawings below. The preferred embodiments of the present application are provided in the drawings. However, the present application can be implemented in many other different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive.

[0034] 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.

[0035] It should be understood that the terms "upper", "lower", "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.

[0036] 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.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0038] It should also be noted that, in the embodiments of the present application, the same figure mark is used to represent the same component or the same part. For the same parts in the embodiments of the present application, the figure may only mark one of the parts or components as an example. It should be understood that the figure mark also applies to other identical parts or components.

[0039] According to one aspect of the present application, an embodiment of the present application provides a punching die, such as Figure 1-Figure 3 As shown, the blanking die includes a lower die assembly 10 and an upper die assembly 20 .

[0040] The lower die assembly 10 includes a lower die base 11 and a female die 12 disposed on the lower die base 11 , and a blanking hole 121 is disposed on the female die 12 .

[0041] The upper die assembly 20 is located above the lower die assembly 10. The upper die assembly 20 includes a fixed plate 21, an upper die seat 22, an upper die plate 23, a male die 24, a punch 25 and an elastic reset member 26. The fixed plate 21, the upper die seat 22 and the upper die plate 23 are arranged in sequence from top to bottom. The upper die plate 23 is provided with a through hole 231 adapted to the shape of the female die 12. The male die 24 is slidably arranged in the through hole 231. The male die 24 is provided with a through hole 241 corresponding to the blanking hole 121; the upper end of the punch 25 is connected to the fixed plate 21, and the lower end is inserted in the through hole 241; the elastic reset member 26 is arranged between the fixed plate 21 and the male die 24. In the initial state of the elastic reset member 26, the lower end surface of the male die 24 is lower than the lower end surface of the punch 25 and the upper die plate 23.

[0042] In the embodiment of the present application, during the use of the punching die, the mother material is placed on the mother die 12 of the lower die assembly 10, and the upper die assembly 20 is driven by the lifting mechanism (not shown in the figure) to move downward as a whole. Since the lower end surface of the male die 24 is lower than the lower end surface of the punch 25 and the upper die plate 23, the lower end surface of the male die 24 first presses the mother material on the mother die 12 to prevent the mother material from slipping during the subsequent punching process. As the lifting mechanism continues to apply pressure, the fixed plate 21 continues to move downward to overcome the elastic force of the elastic reset member 26, driving the punch 25 and the upper die plate 23 to continue to descend. The punch 25 is correspondingly inserted into the blanking hole 121 on the mother die 12, and the part of the mother material corresponding to the blanking hole 121 is cut to form a hole. The upper die plate 23 is correspondingly sleeved on the outside of the mother die 12, and the material on the outer edge of the mother die 12 is cut off, and finally a product with a certain shape and size and holes is formed. Using this punching die, a product with a certain shape and size and holes can be obtained by punching once, which is simple to operate and improves production efficiency.

[0043] Among them, the elastic reset member 26 is used for automatically resetting the male mold 24 after each cutting is completed. The elastic reset member 26 can be a coil spring, a reed, an air bag or other element that can provide elastic force, which is not limited here. Taking the coil spring as an example, upper and lower opposite fixing holes are set on the lower end surface of the fixed plate 21 and the upper end surface of the male mold 24, and the two ends of the coil spring in the axial direction are respectively fixed in the fixing holes on the fixed plate 21 and the male mold 24.

[0044] It is understandable that the female mold 12 in the lower mold assembly 10 can be directly arranged on the lower mold base 11, or can be arranged on the lower mold base 11 as shown in FIG. Figure 2 and Figure 3 As shown, the lower mold assembly 10 also includes a lower pad 13 arranged on the lower mold base 11, and a lower clamping plate 14 arranged on the lower pad 13. The lower clamping plate 14 is provided with a positioning groove, and the lower end of the mother mold 12 is embedded in the positioning groove, thereby realizing the installation and positioning of the mother mold 12 on the lower mold base 11. Similarly, the upper mold plate 23 in the upper mold assembly 20 can be directly arranged at the lower end of the upper mold base 22, or can be arranged as shown in FIG. Figure 2 and Figure 3 As shown, the upper mold assembly 20 also includes an upper clamping plate 28 disposed at the lower end of the upper mold base 22 , and the upper mold plate 23 is disposed at the lower end of the upper clamping plate 28 .

[0045] In one embodiment, if Figure 1-Figure 3 As shown, the female mold 12 is provided with a plurality of blanking holes 121, the male mold 24 is provided with a plurality of through holes 241 corresponding one-to-one to the plurality of blanking holes 121, and the upper mold assembly 20 includes a plurality of punches 25, the upper ends of the plurality of punches 25 are connected to the fixed plate 21, and the lower ends are respectively inserted into the plurality of through holes 241 corresponding one-to-one.

[0046] Through the above arrangement, by utilizing the cooperation between the multiple blanking holes 121 , the multiple through holes 241 and the multiple punches 25 , multiple holes can be formed by punching at one time.

[0047] It should be noted that the positions and sizes of the multiple blanking holes 121 on the mother mold 12 need to be designed according to product requirements and are not limited here.

[0048] In a specific embodiment, see Figure 2 and Figure 3 As shown, the upper mold assembly 20 also includes a connecting plate 210, the upper mold base 22 is provided with an avoidance hole 221 running through the upper and lower parts, the fixed plate 21 is provided with a connecting portion 211 corresponding to the avoidance hole 221, the connecting plate 210 is arranged at the lower end of the connecting portion 211, and the upper ends of multiple punches 25 are arranged in the connecting plate 210.

[0049] Since there are multiple punches 25, if the upper ends of the multiple punches 25 are connected to the connecting parts 211 on the fixed plate 21 one by one, the assembly of the entire mold will be more complicated. By providing a connecting plate 210, the upper ends of the multiple punches 25 are first connected to the connecting plate 210, and then the connecting plate 210 is installed on the connecting part 211 on the fixed plate 21, which is convenient for mold assembly.

[0050] Specifically, a limiting portion with a larger diameter is provided at the upper end of each punch 25, and a stepped hole with a larger upper end and a smaller lower end is provided on the connecting plate 210. The limiting portion at the upper end of the punch 25 is limited in the stepped hole, and then the connecting plate 210 is fixed to the lower end of the connecting portion 211 by screws.

[0051] In one embodiment, if Figure 2 As shown, the upper mold assembly 20 further includes a first elastic member 27 , and the first elastic member 27 is disposed between the upper mold base 22 and the fixing plate 21 .

[0052] The first elastic member 27 arranged between the upper mold base 22 and the fixed plate 21 can play a role in buffering and shock absorption when the upper mold plate 23 moves downward and contacts the mother material at the outer edge of the mother mold 12 and cuts it. The first elastic member 27 is also used for automatic resetting of the upper mold plate 23 after each cutting is completed.

[0053] Specifically, a plurality of first elastic members 27 may be provided, and the plurality of first elastic members 27 are evenly arranged between the upper die base 22 and the fixed plate 21 to ensure that the overall force between the upper die base 22 and the fixed plate 21 is even.

[0054] In a specific embodiment, Figure 2 As shown, the first elastic member 27 includes a compression spring, and fixing grooves are relatively provided on the upper surface of the upper die seat 22 and the lower surface of the fixing plate 21 . The upper and lower ends of the compression spring are respectively embedded in the fixing grooves on the fixing plate 21 and the upper die seat 22 .

[0055] Of course, it is conceivable that in other embodiments, the first elastic member 27 may also be a reed, an air bag or other element capable of providing elastic force, which is not limited here.

[0056] In a specific embodiment, Figure 1 and Figure 3 As shown, the upper mold assembly 20 also includes a connection seat 29 for connecting the lifting mechanism. For example, a connection hole for connecting the driving end of the lifting mechanism is provided on the connection seat 29. The connection seat 29 is arranged at the upper end of the fixing plate 21. The side of the connection seat 29 has a limit hook 291 extending downward. The side of the upper mold seat 22 is provided with a limit flange 222 protruding outward. The lower end surface of the limit flange 222 abuts against the limit hook 291.

[0057] The limiting hook 291 cooperates with the limiting flange 222 to ensure that each time the upper mold plate 23 is reset under the action of the first elastic member 27 , the lower end surface of the upper mold plate 23 is higher than the lower end surface of the male mold 24 .

[0058] In one embodiment, if Figure 1-Figure 2 As shown, the lower mold assembly 10 also includes a lower release plate 15 and a second elastic member 16. The lower release plate 15 is provided with a receiving hole 151 adapted to the shape of the mother mold 12. The lower release plate 15 is movably sleeved on the outer side of the mother mold 12. The second elastic member 16 is arranged between the lower mold base 11 and the lower release plate 15. In the initial state of the second elastic member 16, the upper surface of the lower release plate 15 is flush with the upper surface of the mother mold 12.

[0059] Through the above arrangement, the lower release plate 15 cooperates with the second elastic member 16 to achieve that after each cutting, the lower release plate 15 pushes the waste upwards under the action of the second elastic member 16 .

[0060] The second elastic member 16 may be a spring, a leaf spring, an air bag or other element capable of providing elastic force, which is not limited here.

[0061] In one embodiment, if Figure 1 As shown, the blanking die further includes a guide assembly 30 , which is disposed between the lower die base 11 and the upper die plate 23 and is used to guide the upper die plate 23 to approach or move away from the mother die 12 .

[0062] By utilizing the guide assembly 30 , the accuracy and stability of the up and down movement of the upper template 23 during the punching process can be ensured, thereby improving the punching accuracy.

[0063] In a specific embodiment, Figure 4As shown, the guide assembly 30 includes a guide member 31 disposed on the lower mold base 11 and extending vertically upward, and a sliding member 32 disposed on the upper mold plate 23 , wherein the sliding member 32 is slidably disposed on the guide member 31 .

[0064] In the embodiment of the present application, the guide member 31 adopts a guide rod, and four guide rods are provided and arranged in a four-point matrix around the mother mold 12. A mounting hole is provided at the position corresponding to the guide rod on the upper template 23. The sliding member 32 adopts a linear bearing, and the linear bearing is installed in the mounting hole. The linear bearing cooperates with the guide rod to realize the guidance of the upper template 23 to move up and down.

[0065] It is conceivable that, in other embodiments, the guide member 31 may also be a guide rail vertically arranged on the lower mold base 11, and the sliding member 32 may be a slider arranged on the side of the upper mold plate 23 and slidably connected to the guide rail.

[0066] According to another aspect of the present application, an embodiment of the present application further provides a punching device, such as Figure 5 As shown, the blanking device includes the blanking die in any of the above embodiments and a lifting mechanism 1, the driving end of the lifting mechanism 1 is connected to the fixed plate 21, and under the action of the lifting mechanism 1, the upper die assembly 20 as a whole approaches or moves away from the lower die assembly 10. The lifting mechanism 1 can be a pneumatic cylinder, an oil cylinder or an electric cylinder.

[0067] Since the punching device adopts the punching die in the above embodiment, it also has the advantages and benefits brought by the above punching die accordingly. It can obtain a product with a certain shape and size and holes through one punching, which is simple to operate and improves production efficiency.

[0068] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0069] The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A punching die, characterized in that: include: A lower mold assembly (10) comprises a lower mold base (11) and a mother mold (12) arranged on the lower mold base (11), wherein the mother mold (12) is provided with a blanking hole (121); and An upper die assembly (20) is located above the lower die assembly (10), and the upper die assembly (20) comprises a fixed plate (21), an upper die seat (22), an upper die plate (23), a male die (24), a punch (25) and an elastic reset member (26). The fixed plate (21), the upper die seat (22) and the upper die plate (23) are arranged in sequence from top to bottom. The upper die plate (23) is provided with a through hole (231) adapted to the shape of the female die (12). The male die (24) is slidably arranged on the female die (12). The through hole (231) is provided on the male mold (24) with a through hole (241) corresponding to the blanking hole (121); the upper end of the punch (25) is connected to the fixed plate (21), and the lower end is inserted into the through hole (241); the elastic reset member (26) is provided between the fixed plate (21) and the male mold (24), and in the initial state of the elastic reset member (26), the lower end surface of the male mold (24) is lower than the lower end surfaces of the punch (25) and the upper mold plate (23).

2. The punching die according to claim 1, characterized in that: The female mold (12) is provided with a plurality of blanking holes (121), the male mold (24) is provided with a plurality of through holes (241) corresponding one-to-one to the plurality of blanking holes (121), and the upper mold assembly (20) includes a plurality of punches (25), the upper ends of the plurality of punches (25) are connected to the fixing plate (21), and the lower ends are respectively inserted into the plurality of through holes (241) in a one-to-one manner.

3. The punching die according to claim 2, characterized in that: The upper die assembly (20) further comprises a connecting plate (210), the upper die seat (22) is provided with an avoidance hole (221) penetrating from top to bottom, the fixed plate (21) is provided with a connecting portion (211) corresponding to the avoidance hole (221), the connecting plate (210) is arranged at the lower end of the connecting portion (211), and the upper ends of the plurality of punches (25) are arranged in the connecting plate (210).

4. The punching die according to claim 1, characterized in that: The upper die assembly (20) further comprises a first elastic member (27), wherein the first elastic member (27) is arranged between the upper die seat (22) and the fixing plate (21).

5. The punching die according to claim 4, characterized in that: The first elastic member (27) comprises a compression spring, and fixing grooves are arranged relatively on the upper surface of the upper die seat (22) and the lower surface of the fixing plate (21), and the upper and lower ends of the compression spring are respectively embedded in the fixing grooves on the fixing plate (21) and the upper die seat (22).

6. The punching die according to claim 4, characterized in that: The upper mold assembly (20) also includes a connecting seat (29) for connecting the lifting mechanism, the connecting seat (29) is arranged at the upper end of the fixed plate (21), the side of the connecting seat (29) has a limiting hook (291) extending downward, and the side of the upper mold seat (22) is provided with a limiting flange protruding outward, and the lower end surface of the limiting flange is against the limiting hook (291).

7. The punching die according to claim 1, characterized in that: The lower mold assembly (10) further comprises a lower release plate (15) and a second elastic member (16); the lower release plate (15) is provided with a receiving hole (151) adapted to the outer shape of the mother mold (12); the lower release plate (15) is movably sleeved on the outer side of the mother mold (12); the second elastic member (16) is arranged between the lower mold base (11) and the lower release plate (15); in the initial state of the second elastic member (16), the upper surface of the lower release plate (15) is flush with the upper surface of the mother mold (12).

8. The punching die according to any one of claims 1 to 7, characterized in that: The punching die also includes a guide assembly (30), which is arranged between the lower die base (11) and the upper die plate (23) and is used to guide the upper die plate (23) to approach or move away from the mother die (12).

9. The punching die according to claim 8, characterized in that: The guide assembly (30) comprises a guide member (31) arranged on the lower die base (11) and extending vertically upward, and a sliding member (32) arranged on the upper die plate (23), wherein the sliding member (32) is slidably arranged on the guide member (31).

10. A punching device, characterized in that: include: The punching die according to any one of claims 1 to 9; as well as A lifting mechanism (1), wherein a driving end of the lifting mechanism (1) is connected to the fixed plate (21), and under the action of the lifting mechanism (1), the upper mold assembly (20) as a whole moves closer to or farther from the lower mold assembly (10).

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