A die cutting mold

Abstract

This utility model provides a punching die, including: an upper die assembly and a lower die assembly, which are mounted on a stamping machine; the lower die assembly has a placement position on which a metal part is placed; a plurality of cutting elements are inserted into the upper die assembly; in use, the metal part on the placement position is punched; and an extension plate is provided on the cutting elements; the lower die assembly has a plurality of sliding grooves, which are adjacent to the placement position and opposite to the plurality of cutting elements; the punching die proposed by this utility model does not produce burrs when punching the metal part through the cutting elements, and at the same time reduces the lateral friction between the metal part and the cutting elements, thereby eliminating the need for frequent machine stops for grinding of the cutting elements and further improving production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, and in particular to a punching mold. Background Technology

[0002] With the increasing demand for precision stamped parts such as automotive electronics, more and more electronic components need to be produced through stamping. As demand increases, the frequency of mold usage also increases.

[0003] In the existing technology, when using a punching punch for stamping metal parts, the punching punch is used to stamp the edge material of the metal parts. The common stamping method is single-sided punching. During the punching process, the punching punch is prone to generating lateral force, which causes burrs to exist at the punching position of the metal parts, affecting product quality. At the same time, due to the frequent occurrence of lateral force, the punching punch is affected, requiring frequent machine stops for grinding, which affects the overall production progress and reduces production efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a punching die that can solve the above-mentioned technical problems;

[0005] This utility model provides a punching die, comprising:

[0006] The upper and lower dies are mounted on the stamping machine.

[0007] The lower module has a placement position where metal parts are placed.

[0008] Several cut-out pieces are inserted into the upper module; in use, they punch out the metal parts placed in the positions; and extension plates are provided on the cut-out pieces.

[0009] The lower module is provided with several sliding grooves, which are adjacent to the placement position and opposite to several cutting bodies.

[0010] As a further technical solution, the upper module includes:

[0011] The upper die holder is mounted on the stamping machine and has several guide pillars.

[0012] The first pad is set on the upper mold base and passes through several guide pillars; several cutting bodies are set on the first pad;

[0013] A clamping plate is provided on the first pad and is threaded through several cut pieces;

[0014] A back panel is mounted on several guide posts; and a release plate is provided on the back panel, with the release plate mounted on several guide posts.

[0015] Several limiting devices are installed on the clamp plate to limit the movement distance of the backplate.

[0016] As a further technical solution, the limiting device includes:

[0017] The board body and the first and second hooks located at both ends of the board body;

[0018] The plate is set on the clamping plate, and the first hook is engaged with the clamping plate; in the mold-open state, the second hook is engaged with the back plate.

[0019] As a further technical solution, several limiting grooves are provided on both the back panel and the stripper plate, and several cut pieces are placed in the several limiting grooves respectively.

[0020] As a further technical solution, a slider is provided on the cutting body, and a first sliding groove is provided in the limiting groove, with the slider and the first sliding groove being adapted to each other.

[0021] As a further technical solution, a second sliding groove is provided inside the sliding groove, and the second sliding groove is adapted to the slider.

[0022] As a further technical solution, the lower module includes:

[0023] The lower die holder is mounted on the stamping machine;

[0024] The second pad is set on the lower mold base, and a template is set on the second pad;

[0025] The placement positions and several sliding grooves are all set on the template.

[0026] As a further technical solution, several sliding grooves pass through the template, the second pad, and the lower module in sequence and then connect to the outside.

[0027] As a further technical solution, there is a 90° angle between the extension plate and the cut body.

[0028] Preferably, there are two cut-out bodies, which are arranged opposite each other in the upper module.

[0029] The technical solution of this utility model places the metal part on the placement position in the mold-open state. When the mold is closed, the upper mold assembly drives several cutting bodies to move to the placement position. Before the cutting bodies contact the placement body, the extension plate is inserted into the sliding groove. As the upper mold assembly continues to move, the cutting bodies contact the metal part and punch the metal part. During the punching process, the extension plate and the sliding groove are in contact. The lateral force generated by the cutting bodies cannot cause the cutting bodies to make lateral displacement. Therefore, no burrs are generated after the cutting bodies cut the metal part. In addition, since the cutting bodies cannot make displacement, the lateral friction between the metal part and the cutting bodies is reduced, so there is no need to frequently stop the machine to grind the cutting bodies, which further improves the production efficiency. Attached Figure Description

[0030] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0031] Figure 1 This is a perspective view of a punching die according to the present invention;

[0032] Figure 2 This is a perspective view of the upper module in this utility model;

[0033] Figure 3 This is a perspective view of the lower module of this utility model;

[0034] Figure 4 This is a schematic diagram of the structure of a punching die according to the present invention;

[0035] Figure 5 for Figure 4 A sectional view of section AA;

[0036] Figure 6 This is a perspective view of the cut body in this utility model.

[0037] Explanation of reference numerals in the attached figures:

[0038] 100-Upper module; 101-Upper mold base; 102-Guide post; 103-First pad; 104-Clamping plate; 105-Removable back plate; 151-Limiting groove; 152-First sliding groove; 106-Removable plate; 107-Limiting device; 171-Plate body; 172-First hook; 173-Second hook; 200-Lower module; 201-Lower mold base; 202-Second pad; 203-Template; 300-Cutting body; 301-Slider; 400-Extension plate; 500-Sliding groove; 501-Second sliding groove. Detailed Implementation

[0039] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0040] In the description of this utility model, 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", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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 utility model.

[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0042] like Figure 1-6 As shown, the present invention proposes a punching die, comprising:

[0043] The upper mold 100 and the lower mold 200 are mounted on a stamping machine. During use, the stamping machine drives the upper mold 100 and the lower mold 200 to perform mold opening and closing operations. The lower mold 200 is provided with a placement position for placing metal parts, and the placement position restricts the position of the metal parts, thereby fixing the metal parts.

[0044] Several cut pieces 300 are inserted into the upper module 100; in use, they punch metal parts at the placement position; and extension plates 400 are provided on the cut pieces 300; several sliding grooves 500 are provided on the lower module 200, which are adjacent to the placement position and opposite to the cut pieces 300; in actual use, driven by the stamping machine, the upper module 100 drives the cut pieces 300 to move towards the placement position. As the distance between the cut pieces 300 and the placement position gradually shortens, the extension plates 400 enter the sliding grooves 500. The extension plate 400 is limited by the sliding groove 500; as several cutting bodies 300 move, the extension plate 400 moves within the sliding groove 500, and the extension plate 400 is limited by the cooperation of the sliding groove 500; until the cutting body 300 contacts the metal part and punches the metal part; during the punching process, since the extension plate 400 contacts the inner wall of the sliding groove 500, the lateral force generated by the cutting body 300 when cutting the metal part cannot cause the cutting body 300 to move, and thus no burrs are generated on the metal part when cutting it;

[0045] like Figure 5 and 6 As shown, there is a 90° angle between the extension plate 400 and the cutting body 300 to ensure that the extension plate 400 can contact the inside of the sliding groove 500 after entering the sliding groove 500. In addition, the number of cutting bodies 300 is set according to the actual situation. In this utility model, it is preferred that there are two cutting bodies 300, which are arranged opposite to each other in the upper module 100. In this way, the cutting bodies 300 can punch both sides of the metal part at the same time, and the metal part can be punched by the same force on both sides during punching, ensuring that the metal part will not tilt due to uneven force during punching.

[0046] In this invention, the metal part is placed on the placement position when the mold is open. When the mold is closed, the upper mold assembly 100 drives several cutting bodies 300 to move towards the placement position. Before the cutting bodies 300 contact the placement body, the extension plate 400 is inserted into the sliding groove 500. As the upper mold assembly 100 continues to move, the cutting bodies 300 contact the metal part and punch it. During the punching process, the extension plate 400 and the sliding groove 500 are in contact. The lateral force generated by the cutting bodies 300 cannot cause the cutting bodies 300 to move laterally, so the cutting bodies 300 will not produce burrs after cutting the metal part. In addition, since the cutting bodies 300 cannot move, the lateral friction between the metal part and the cutting bodies 300 is reduced, so there is no need to frequently stop the machine to grind the cutting bodies 300, which further improves production efficiency.

[0047] like Figure 2As shown, the upper module 100 includes an upper mold base 101, a first pad 103, a clamping plate 104, a backing plate 105, and several limiting devices 107. The upper mold base 101 is mounted on a stamping machine, and several guide posts 102 are provided on the upper mold base 101. The first pad 103 is mounted on the upper mold base 101 and passes through the several guide posts 102. Several cutting bodies 300 are mounted on the first pad 103. The clamping plate 104 is mounted on the first pad 103 and passes through the several cutting bodies 300. The backing plate 105 passes through the several guide posts 102. A release plate 106 is provided on the backing plate 105 and passes through the several guide posts 102. Several limiting devices 107 are provided on the clamping plate 104, and the movement distance of the backing plate 105 is controlled by the limiting devices 107. The mold is positioned to limit movement. When the mold opens, one end of each of the cut pieces 300 is placed inside the ejector plate 106. When the mold closes, the ejector plate 106 contacts the lower mold assembly 200, and the lower ejector plate 106 and the ejector back plate 105 slide on the guide pillars 102. The ejector back plate 105 stops moving after contacting the clamping plate 104. When the ejector plate 106 contacts the lower mold assembly 200, one end of each of the cut pieces 300 contacts the metal part. Since the cut pieces 300 are set on the first pad 103, when the mold is continuously closed, the cut pieces 300 punch the metal part, and the ejector plate 106 and the ejector back plate 105 move toward the position of the clamping plate 104. This protects the cut pieces 300 by the ejector back plate 105 and the ejector plate 106, preventing them from being accidentally contacted by other parts or operators before punching.

[0048] In addition, the limiting device 107 includes a plate 171 and a first hook 172 and a second hook 173 disposed at both ends of the plate 171; the plate 171 is disposed on the clamping plate 104, and the first hook 172 is engaged with the clamping plate 104; in the mold-opening state, the second hook 173 is engaged with the back plate 105; in the mold-opening state, the limiting device 107 holds the back plate 105 in place, preventing the back plate 105 and the ejector plate 106 from moving excessively and causing several guide posts 102 to fall off; in this utility model, it is preferred that two limiting devices 107 are respectively disposed on both sides of the clamping plate 104; and it is preferred that there are 4 guide posts 102.

[0049] like Figure 2As shown, both the back plate 105 and the ejector plate 106 are provided with several limiting grooves 151, and several cut-out bodies 300 are respectively placed in the limiting grooves 151. In this way, when the back plate 105 and the ejector plate 106 slide on the guide post 102, the existence of several limiting grooves 151 does not affect the several cut-out bodies 300. On the other hand, the limiting grooves 151 guide the cut-out bodies 300, preventing the cut-out bodies 300 from displacing during the mold closing process. Specifically, the cut-out body 300 is provided with a slider 301, and the limiting groove 151 is provided with a first sliding groove 152, and the slider 301 is adapted to the first sliding groove 152. In this way, during the mold opening or closing process, the movement trajectory of the cut-out body 300 is restricted by the cooperation of the first sliding groove 152 and the slider 301, preventing the cut-out body 300 from displacing.

[0050] like Figure 3 As shown, a second slide groove 501 is provided in the sliding groove 500, and the second slide groove 501 is adapted to the slider 301. When the mold is closed, when the metal part is punched by the cutting body 300, the second slide groove 501 and the slider 301 cooperate to limit the cutting body 300 during the punching process. At the same time, the extension plate 400 also limits the cutting body 300, so as to achieve double limiting of the cutting body 300 during the punching process and improve the accuracy of punching.

[0051] The lower die assembly 200 includes a lower die base 201, a second pad 202, and a template 203. The lower die base 201 is mounted on a stamping machine. The second pad 202 is mounted on the lower die base 201, and the template 203 is mounted on the second pad 202. A placement position and several sliding grooves 500 are both mounted on the template 203. The several sliding grooves 500 pass through the template 203, the second pad 202, and the lower die assembly 200 in sequence and then communicate with the outside. In this way, after the metal part is punched by the cutting body 300, the scrap material punched off the metal part enters the sliding groove 500 and falls naturally in the sliding groove 500 under its own gravity. Finally, it passes through the sliding groove 500 and slides out of the lower die base 201 for collection and other operations. It should be noted that the number of sliding grooves 500 is equal to the number of cutting bodies 300, preferably two.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A punching die, characterized in that, include: An upper module (100) and a lower module (200) are provided on a stamping machine; The lower module (200) is provided with a placement position, and the metal part is placed on the placement position; Several cutting bodies (300) are inserted into the upper module (100); in use, they punch metal parts placed in the placement position; and an extension plate (400) is provided on the cutting body (300). The lower module (200) is provided with a plurality of sliding grooves (500), which are adjacent to the placement position and opposite to the plurality of cutting bodies (300).

2. The punching die according to claim 1, characterized in that, The upper module (100) includes: An upper die holder (101) is mounted on a stamping machine, and a plurality of guide posts (102) are provided on the upper die holder (101); A first pad (103) is disposed on the upper mold base (101) and passes through a plurality of guide posts (102); a plurality of the cutting bodies (300) are disposed on the first pad (103); A clamping plate (104) is disposed on the first pad (103) and passes through a plurality of the cutting bodies (300); A back panel (105) is provided on a plurality of the guide posts (102); and a release plate (106) is provided on the back panel (105), the release plate (106) being provided on a plurality of guide posts (102); Several limiting devices (107) for limiting the movement distance of the back panel (105) are provided on the clamping plate (104).

3. The punching die according to claim 2, characterized in that, The limiting device (107) includes: The plate (171) and the first hook (172) and the second hook (173) provided at both ends of the plate (171); The plate (171) is disposed on the clamping plate (104), and the first hook (172) is engaged on the clamping plate (104); in the mold-open state, the second hook (173) is engaged with the back plate (105).

4. The punching die according to claim 2, characterized in that, Both the back panel (105) and the stripping panel (106) are provided with a plurality of limiting grooves (151), and a plurality of the cutting bodies (300) are respectively placed in the plurality of limiting grooves (151).

5. The punching die according to claim 4, characterized in that, The cutting body (300) is provided with a slider (301), and the limiting groove (151) is provided with a first sliding groove (152), and the slider (301) is adapted to the first sliding groove (152).

6. The punching die according to claim 5, characterized in that, The sliding groove (500) is provided with a second sliding groove (501), which is adapted to the slider (301).

7. The punching die according to claim 6, characterized in that, The lower module (200) includes: The lower die holder (201) is mounted on the stamping machine; The second pad (202) is disposed on the lower mold base (201), and a template (203) is disposed on the second pad (202); The placement position and several of the sliding grooves (500) are all provided on the template (203).

8. The punching die according to claim 7, characterized in that, Several of the sliding grooves (500) pass through the template (203), the second pad (202) and the lower module (200) in sequence and then communicate with the outside.

9. The punching die according to claim 1, characterized in that, There is a 90° angle between the extension plate (400) and the cutting body (300).

10. The punching die according to claim 1, characterized in that, There are two cutting bodies (300), which are arranged opposite to each other in the upper module (100).

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