Punching equipment

Abstract

The utility model discloses stamping equipment, and belongs to the technical field of machining. The stamping equipment comprises a first die assembly, a positioning piece, a limiting assembly and a driving mechanism. The first die assembly is used for bearing a to-be-machined part and provided with a first punched hole. The positioning piece is arranged on the first die assembly and forms a second punched hole and a containing groove, the second punched hole is right opposite to the first punched hole, and the containing groove penetrates through the positioning piece in the first direction; the limiting assembly comprises two limiting pieces with the installation positions adjustable in the second direction, and the two limiting pieces abut against the to-be-machined piece in a rolling mode so as to limit movement of the to-be-machined piece in the second direction. The output end of the driving mechanism is connected with a punch and used for driving the punch to move in the third direction so as to penetrate through the first punched hole and the second punched hole, and the first direction, the second direction and the third direction intersect pairwise. The punching device can adapt to punching operation of to-be-machined parts of different sizes and shapes, the production efficiency can be improved, the to-be-machined parts can be protected, and meanwhile the manufacturing cost is reduced.

Description

Technical Field

[0001] This application belongs to the field of machining technology, and in particular relates to a stamping device. Background Technology

[0002] Photovoltaic power generation is a clean energy source with advantages such as no pollution, long service life, and low maintenance costs. Photovoltaic support structures are the supporting components for photovoltaic modules, and often require through-holes to be machined into their surfaces for subsequent assembly. However, photovoltaic support structures come in various sizes, and related technologies often require replacing different fasteners to secure the support structures for the punching operation. This is not only time-consuming and labor-intensive, reducing production efficiency, but also increases operational complexity and manufacturing costs. Utility Model Content

[0003] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes a stamping device that can adapt to punching operations on workpieces of different sizes and shapes, which helps to improve production efficiency and protect the workpieces while reducing manufacturing costs.

[0004] In a first aspect, this application provides a stamping apparatus, comprising:

[0005] A first mold assembly is used to support the workpiece to be processed, and the first mold assembly is provided with a first punch;

[0006] A positioning element is disposed on a first mold assembly and forms a second punch and a receiving groove, the second punch and the first punch being directly opposite each other, the receiving groove being used to receive the workpiece to be processed, and the receiving groove penetrating the positioning element along a first direction;

[0007] The limiting assembly includes two adjustable limiting members installed along a second direction, wherein the two limiting members respectively roll against the workpiece to restrict the movement of the workpiece along the second direction;

[0008] The driving mechanism has a punch connected to its output end, which is used to drive the punch to move along a third direction to penetrate the first punch and the second punch, wherein the first direction, the second direction and the third direction intersect each other.

[0009] According to the stamping equipment of this application, on the one hand, the workpiece to be processed is located between two limiting members along the second direction. This not only enables the workpiece to be limited in the second direction by the abutting cooperation between the limiting members and the workpiece, ensuring the stability and accuracy of the workpiece during the stamping process, but also allows for the adjustment of the installation position of the limiting members along the second direction to accommodate workpieces of different sizes, thereby improving the flexibility and versatility of the stamping equipment and increasing processing efficiency. On the other hand, the two limiting members roll into contact with the two opposite sides of the workpiece along the second direction, which helps to reduce the wear caused by fixing during the stamping and movement along the first direction, improving positioning accuracy while reducing damage to the surface of the workpiece and extending the service life of the stamping equipment and the workpiece.

[0010] According to one embodiment of this application, the bottom of the receiving groove is provided with an abutment member, the abutment member being adapted to abut against the workpiece to be processed, and the abutment member forming a third punch that communicates with the second punch.

[0011] According to one embodiment of this application, the abutment includes:

[0012] The main body, one end of which is disposed at the bottom of the receiving groove;

[0013] An extension is provided at the other end of the main body, and along the second direction, the sidewall of the extension protrudes beyond the corresponding sidewall of the main body.

[0014] According to one embodiment of this application, the limiting member includes:

[0015] The mounting block is adjustablely positioned on the first mold assembly along the second direction;

[0016] A connecting shaft protrudes from the mounting block and extends along the third direction;

[0017] A rolling element is rotatably fitted onto the connecting shaft and abuts against the workpiece to be processed.

[0018] According to one embodiment of this application, the positioning member has notches on both sides that are opposite to each other along the second direction. The notches are connected to the receiving groove and correspond one-to-one with the limiting member. The limiting member is disposed on the first mold assembly and located at the corresponding notch.

[0019] According to one embodiment of this application, one of the first mold assembly and the limiting member forms an oblong hole extending along the second direction, and the other of the first mold assembly and the limiting member forms at least two spaced connecting holes, with the fixing member passing through the oblong hole and the connecting holes for positioning and engagement.

[0020] According to one embodiment of this application, the first mold assembly includes a lower mold base and a fixing plate, the fixing plate being connected to the positioning member and the lower mold base respectively, and the fixing plate having the first punch hole.

[0021] According to one embodiment of this application, a plurality of punches are provided, and the plurality of punches are spaced apart along the first direction.

[0022] According to one embodiment of this application, it also includes:

[0023] The second mold assembly is connected to the output end of the drive mechanism. The second mold assembly is located on the side of the positioning member away from the first mold assembly, and the punch is located on the second mold assembly.

[0024] According to one embodiment of this application, the second mold assembly includes a connected upper mold base and a punch clamping plate, one end of the punch is disposed on the punch clamping plate, and the side of the punch clamping plate away from the upper mold base is used to contact the positioning member.

[0025] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0026] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0027] Figure 1 This is a schematic diagram of the structure of the stamping equipment provided in the embodiments of this application;

[0028] Figure 2 This is an exploded view of the stamping equipment provided in the embodiments of this application;

[0029] Figure 3 This is a schematic diagram of the stamping equipment provided in this application embodiment, excluding the upper die holder;

[0030] Figure 4 This is a schematic diagram of the stamping equipment provided in this application embodiment, omitting the second mold assembly and positioning component;

[0031] Figure 5 This is a schematic diagram of the structure of the positioning member and the abutment member provided in the embodiments of this application.

[0032] Figure label:

[0033] 100. First mold assembly; 101. First punch; 102. Connecting hole;

[0034] 111. Lower mold base; 112. Fixing plate;

[0035] 200. Positioning element; 201. Second punch; 202. Receiving groove; 203. Notch;

[0036] 300. Limiting component; 301. Waist-shaped hole;

[0037] 310. Mounting block; 320. Connecting shaft; 330. Rolling element;

[0038] 400, punch;

[0039] 500, Abutment part; 501, Third punch;

[0040] 510. Main body; 520. Extension;

[0041] 600. Second mold assembly; 610. Upper mold base; 620. Punch clamping plate;

[0042] 700. Guiding components;

[0043] 900, part to be processed; 901, groove. Detailed Implementation

[0044] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0045] The following is for reference. Figures 1-5 The stamping equipment provided in the embodiments of this application is described. The stamping equipment includes a first mold assembly 100, a positioning member 200, a limiting assembly, a punch 400, and a drive mechanism (not shown).

[0046] The first mold assembly 100 is used to support the workpiece 900 to be processed, and the first mold assembly 100 is provided with a first punch 101. The output end of the drive mechanism is connected to a punch 400. The drive mechanism includes, but is not limited to, a hydraulic cylinder. It should be noted that the shape and size of the first punch 101 can be designed according to actual needs, and this embodiment does not impose specific limitations on this.

[0047] It should be noted that the workpiece 900 to be processed includes, but is not limited to, photovoltaic brackets, and the cross-section of the workpiece 900 to be processed includes, but is not limited to, C-shaped or U-shaped.

[0048] A positioning element 200 is disposed on the first mold assembly 100 and forms a second punch 201 and a receiving groove 202. The second punch 201 and the first punch 101 are directly opposite each other. The receiving groove 202 is used to receive the workpiece 900 to be processed and passes through the positioning element 200 along a first direction. The output end of the drive mechanism is used to drive the punch 400 to move along a third direction to pass through the first punch 101 and the second punch 201. The first direction and the third direction intersect. It should be noted that the shape and size of the receiving groove 202 and the second punch 201 can be designed according to actual needs, and this embodiment does not impose specific limitations on this.

[0049] It is understood that the positioning member 200 is disposed in the first mold assembly 100 so that the inner wall of the receiving groove 202 and the top surface of the first mold assembly 100 together form a receiving space for placing the workpiece 900 to be processed. The positioning member 200 is penetrated through the receiving groove 202 along the first direction, thereby facilitating the movement of the positioning member 200 relative to the receiving space along the first direction during the punching process, thereby improving the automation and efficiency of stamping. At the same time, the second punch 201 is arranged opposite to the first punch 101 along the third direction so that the punching is passed through the second punch 201, the workpiece 900 to be processed and the first punch 101 in sequence by the driving mechanism. This completes the punching operation of the workpiece 900 while reducing the resistance and deviation that the punch 400 may encounter during the punching and withdrawal process, which helps to ensure the linear movement and precise alignment of the punch 400, thereby improving the stamping accuracy and efficiency.

[0050] The limiting assembly includes two adjustable limiting members 300 installed along a second direction. The two limiting members 300 roll against the workpiece 900 to restrict the movement of the workpiece 900 along the second direction, which intersects with the first direction and the third direction, respectively.

[0051] Understandably, on the one hand, the workpiece 900 is positioned between the two limiting members 300 along the second direction. This not only allows the workpiece 900 to be limited in the second direction through the abutting cooperation between the limiting members 300 and the workpiece 900, ensuring the stability and accuracy of the workpiece 900 during the stamping process, but also allows for the adjustment of the installation position of the limiting members 300 along the second direction to accommodate workpieces 900 of different sizes, improving the flexibility and versatility of the stamping equipment and increasing processing efficiency. On the other hand, the two limiting members 300 roll into contact with the two opposite sides of the workpiece 900 along the second direction, which helps reduce the wear caused by fixing the workpiece 900 during stamping and movement along the first direction, improving positioning accuracy while reducing damage to the surface of the workpiece 900, and extending the service life of both the stamping equipment and the workpiece 900.

[0052] In this embodiment, as Figure 2As shown, the workpiece 900 to be processed forms a groove 901 with the groove opening facing upwards. The extension direction of the groove 901 is parallel to the first direction, the groove width of the groove 901 is parallel to the second direction, and the third direction is parallel to the up and down direction.

[0053] The stamping equipment provided according to the embodiments of this application can be adapted to punching operations on workpieces 900 of different sizes and shapes, which helps to improve production efficiency and protect workpieces 900, while reducing manufacturing costs.

[0054] In some embodiments, such as Figures 1 to 3 and Figure 5 As shown, the bottom of the receiving groove 202 is provided with an abutment member 500, which is adapted to abut against the workpiece 900 to be processed, and the abutment member 500 forms a third punch 501 that communicates with the second punch 201. It should be noted that the shape and size of the third punch 501 can be designed according to actual needs, and this embodiment does not impose specific limitations on this.

[0055] Understandably, on the one hand, the punch 400 sequentially passes through the second punch 201, the third punch 501, the workpiece 900, and the first punch 101 during the stamping process, so as to guide the movement of the punch 400 in the third direction through the abutment 500, thereby improving the accuracy of the punching operation; on the other hand, the bottom surface of the abutment 500 and the top surface of the first mold are spaced apart, so that the side of the workpiece 900 away from the first mold assembly 100 can abut against the bottom surface of the abutment 500, that is, the bottom of the groove 901 formed by the workpiece 900 abuts against the bottom surface of the abutment 500, thereby limiting the workpiece 900 in the third direction, reducing the movement or rotation of the workpiece 900 during the stamping process, thereby improving the reliability of the stamping.

[0056] In some embodiments, such as Figures 1 to 3 and Figure 5 As shown, the positioning part 200 and the abutment part 500 are integrally molded structures, which can reduce manufacturing costs and improve connection strength.

[0057] In some embodiments, such as Figure 5 As shown, the abutment member 500 includes a main body 510 and an extension 520. One end of the main body 510 is disposed at the bottom of the receiving groove 202; the extension 520 is disposed at the other end of the main body, and along the second direction, the side wall of the extension 520 protrudes from the corresponding side wall of the main body 510.

[0058] Understandably, the top of the main body 510 is connected to the bottom of the receiving groove 202, and the extension 520 is disposed at the bottom of the main body 510 and protrudes along the second direction, thereby providing additional strength. At the same time, the two sides of the extension 520 disposed opposite each other along the second horizontal direction can also abut against the two inner sidewalls of the groove 901 to increase the contact area and enhance the stability of the workpiece 900 during the stamping process.

[0059] In some embodiments, such as Figure 2 As shown, the limiting member 300 includes a mounting block 310, a connecting shaft 320, and a rolling element 330. The mounting block 310 is adjustablely mounted on the first mold assembly 100 along a second direction; the connecting shaft 320 protrudes from the mounting block 310 and extends along a third direction; the rolling element 330 is rotatably sleeved on the connecting shaft 320 and abuts against the workpiece 900. For example, the rolling element 330 includes, but is not limited to, a bearing.

[0060] Understandably, after placing one end of the workpiece 900 into the receiving space, the position of the mounting block 310 is adjusted along the second direction until the rolling element 330 abuts against the outer wall of the workpiece 900 along the second direction. Then, the punch 400 reciprocates along the third direction, and the workpiece 900 moves along the first direction alternately to complete the punching operation on the workpiece 900. Simultaneously, during the movement of the punch 400 along the first direction, the rolling element 330 rotates relative to the connecting shaft 320, causing the rolling element 330 and the outer wall of the workpiece 900 to roll and abut against each other. This achieves effective limiting and precise control of the workpiece 900, while reducing friction and wear, and improving production efficiency and processing quality.

[0061] In some embodiments, such as Figure 2 , Figure 3 and Figure 5 As shown, the positioning member 200 has notches 203 on both sides that are opposite each other along the second direction. The notches 203 are connected to the receiving grooves 202 and correspond one-to-one with the limiting members 300. The limiting members 300 are disposed in the first mold assembly 100 and located at the corresponding notches 203. It should be noted that the shape and size of the notches 203 can be designed according to actual needs, and this embodiment does not impose specific limitations on them.

[0062] It is understood that the notch 203 is connected to the receiving groove 202, enabling the rolling element 330 to interact with the workpiece 900 in the receiving groove 202 through the notch 203, thereby improving the compactness and positioning accuracy of the overall structure of the stamping equipment. Of course, in other embodiments, the limiting member 300 can also be directly set on the positioning member 200 through the notch 203, and this embodiment does not impose specific restrictions on this.

[0063] In some embodiments, such asFigures 2 to 4 As shown, one of the first mold assembly 100 and the limiting member 300 forms an oblong hole 301 extending along the second direction, and the other of the first mold assembly 100 and the limiting member 300 forms at least two spaced connecting holes 102. A fastener passes through the oblong hole 301 and the connecting holes 102 for positioning and engagement. The fastener includes, but is not limited to, screws or pins. It should be noted that the size of the oblong hole 301 and the number of connecting holes 102 can be designed according to actual needs, and this embodiment does not impose specific limitations on them.

[0064] It is understandable that when the mounting block 310 moves relative to the first mold assembly 100 until the rolling element 330 abuts against the workpiece 900, the fixing element passes through the waist-shaped hole 301 and the connecting hole 102 in sequence to cooperate. That is, the installation position of the limiting element 300 along the second direction can be adjusted by cooperating with the waist-shaped hole 301 and different connecting holes 102.

[0065] In this embodiment, as Figures 2 to 4 As shown, the waist-shaped hole 301 is disposed on the mounting block 310, and the connecting hole 102 is disposed on the first mold assembly 100. Of course, in other embodiments, the waist-shaped hole 301 may be disposed on the first mold assembly 100, and the connecting hole 102 may be disposed on the mounting block 310.

[0066] In some embodiments, such as Figure 2 and Figure 3 As shown, multiple punches 400 are provided, and the multiple punches 400 are spaced apart along the first direction. It should be noted that the number and shape of the punches 400 can be designed according to actual needs, and this embodiment does not impose specific limitations on this.

[0067] It should be noted that "multiple" includes two or more. For example, in this embodiment, three punches 400 are provided.

[0068] Understandably, the design of multiple punches 400 allows multiple punches to be completed in a single operation cycle, reducing processing time and the number of operations required, thereby improving overall production efficiency and helping to distribute the load more evenly during the stamping process. It also ensures precise alignment of each hole when processing complex parts with multiple holes.

[0069] In some embodiments, multiple limiting components may be provided, and the multiple limiting components are spaced apart along the first direction to further improve the positioning accuracy of the workpiece 900 and improve the accuracy and reliability of punching.

[0070] In some embodiments, such as Figures 1 to 4As shown, the first mold assembly 100 includes a lower mold base 111 and a fixing plate 112. The fixing plate 112 is connected to the positioning member 200 and the lower mold base 111 respectively, and the fixing plate 112 is provided with a first punch 101. It should be noted that the shape and size of the fixing plate 112 and the lower mold can be designed according to actual needs, and this embodiment does not impose specific limitations on them.

[0071] It is understandable that the top surface of the fixed plate 112 is connected to the positioning member 200 and the limiting member 300 respectively, and the bottom surface of the fixed plate 112 is connected to the lower die base 111. This can improve the rigidity and stability of the entire first die assembly 100, and can effectively transmit the stamping force to the lower die base 111, reducing deformation during the stamping process.

[0072] In this embodiment, as Figure 4 As shown, the connecting hole 102 is provided on the lower mold base 111.

[0073] In some embodiments, such as Figure 1 and Figure 2 As shown, the stamping equipment also includes a second mold assembly 600. The output end of the drive mechanism is connected to the second mold assembly 600. The second mold assembly 600 is located on the side of the positioning member 200 away from the first mold assembly 100. The punch 400 is located on the second mold assembly 600.

[0074] Understandably, the second mold assembly 600 is located above the positioning member 200 and moves vertically under the drive of the drive mechanism, so that the end of the punch 400 away from the second mold assembly 600 passes through the workpiece 900 and cooperates with the first punch 101, which facilitates more precise control of the punching force and speed, and enhances the processing capability and flexibility of the stamping equipment.

[0075] In some embodiments, such as Figures 1 to 3 As shown, the second mold assembly 600 includes a connected upper mold base 610 and a punch clamping plate 620. One end of the punch 400 is disposed on the punch clamping plate 620, and the side of the punch clamping plate 620 away from the upper mold base 610 is used to contact the positioning member 200.

[0076] Understandably, one end of the punch 400 is positioned on the punch clamp 620, which supports and positions the punch 400. By contacting the positioning element 200 during punching, the punch 400's punching stroke is controlled, improving punching quality and precision. Simultaneously, the connection between the upper die holder 610 and the punch clamp 620 enhances the rigidity and stability of the second die assembly 600, reducing deformation during the punching process.

[0077] In some embodiments, such as Figure 1 and Figure 2As shown, the stamping equipment also includes multiple circumferentially spaced guide components 700. The guide components 700 are connected to the upper die holder 610 and the lower die holder 111 respectively, to improve the accurate positional alignment between the upper die holder 610 and the lower die holder 111 during the stamping process, thereby improving the dynamic accuracy of the stamping equipment and ensuring processing accuracy and stability during the stamping process. Exemplarily, the guide components 700 include, but are not limited to, connected guide posts and guide sleeves to provide stable guidance; this embodiment does not impose specific limitations on this.

[0078] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0079] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0080] In the description of this application, "first feature" and "second feature" may include one or more of the features.

[0081] In the description of this application, "multiple" means two or more.

[0082] In the description of this application, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or the first and second features being in contact through another feature between them.

[0083] In the description of this application, the terms "above," "over," and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0084] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0085] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A stamping device, characterized in that, include: A first mold assembly is used to support the workpiece to be processed, and the first mold assembly is provided with a first punch. A positioning element is disposed on a first mold assembly and forms a second punch and a receiving groove, the second punch and the first punch being directly opposite each other, the receiving groove being used to receive the workpiece to be processed, and the receiving groove penetrating the positioning element along a first direction; The limiting assembly includes two adjustable limiting members installed along a second direction, wherein the two limiting members respectively roll against the workpiece to restrict the movement of the workpiece along the second direction; The driving mechanism has a punch connected to its output end, which is used to drive the punch to move along a third direction to penetrate the first punch and the second punch, wherein the first direction, the second direction and the third direction intersect each other.

2. The stamping equipment according to claim 1, characterized in that, The bottom of the receiving groove is provided with an abutment, which is adapted to abut against the workpiece to be processed, and the abutment forms a third punch that communicates with the second punch.

3. The stamping equipment according to claim 2, characterized in that, The abutment includes: The main body is located at one end of the bottom of the receiving groove; An extension is provided at the other end of the main body, and along the second direction, the sidewall of the extension protrudes beyond the corresponding sidewall of the main body.

4. The stamping equipment according to any one of claims 1 to 3, characterized in that, The limiting component includes: The mounting block is adjustablely positioned on the first mold assembly along the second direction; A connecting shaft protrudes from the mounting block and extends along the third direction; A rolling element is rotatably fitted onto the connecting shaft and abuts against the workpiece to be processed.

5. The stamping equipment according to any one of claims 1 to 3, characterized in that, The positioning member has notches on both sides that are opposite each other along the second direction. The notches are connected to the receiving groove and correspond one-to-one with the limiting member. The limiting member is set on the first mold assembly and located at the corresponding notch.

6. The stamping equipment according to claim 5, characterized in that, One of the first mold assembly and the limiting member forms an oblong hole extending along the second direction, and the other of the first mold assembly and the limiting member forms at least two spaced connecting holes, with the fixing member passing through the oblong hole and the connecting holes for positioning and engagement.

7. The stamping equipment according to any one of claims 1 to 3, characterized in that, The first mold assembly includes a lower mold base and a fixing plate. The fixing plate is connected to the positioning member and the lower mold base respectively, and the fixing plate is provided with the first punch hole.

8. The stamping equipment according to any one of claims 1 to 3, characterized in that, The punches are provided in multiple ways, and the multiple punches are spaced apart along the first direction.

9. The stamping equipment according to any one of claims 1 to 3, characterized in that, Also includes: The second mold assembly is connected to the output end of the drive mechanism. The second mold assembly is located on the side of the positioning member away from the first mold assembly, and the punch is located on the second mold assembly.

10. The stamping equipment according to claim 9, characterized in that, The second mold assembly includes a connected upper mold base and a punch clamping plate, one end of the punch is disposed on the punch clamping plate, and the side of the punch clamping plate away from the upper mold base is used to contact the positioning element.

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