A punch press

Abstract

The utility model provides a kind of punch, it includes machine body and respectively be equipped on the upper die holder and lower die holder of the machine body;Upper die holder is equipped with female die fixed plate, lower die holder is equipped with male die fixed plate;First locking piece and the trimming male die module of the male die fixed plate sliding connection with the male die fixed plate are equipped on the male die fixed plate, first locking piece passes through the male die fixed plate and the trimming male die module screw connection;Upper die holder is equipped with female die fixed plate;Second locking piece and the trimming female die module of the female die fixed plate sliding connection with the female die fixed plate are equipped on the female die fixed plate, second locking piece passes through the female die fixed plate and the trimming female die module screw connection.The utility model solves the problem that only through replacing male and female die cutting edge to maintain after die wear seriously, leading to the problem of low production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of stamping technology, and more specifically, to a stamping machine. Background Technology

[0002] Sheet metal parts, due to their advantages of lightweight, high strength, and ease of forming, have become core basic components in automobile manufacturing, home appliances, electronic equipment, and hardware products. As a key piece of equipment for blanking, bending, and forming sheet metal parts, the precision of the die directly determines the processing quality and pass rate of the sheet metal parts. Existing stamping presses generally adopt a basic structural frame of "machine body - upper die holder - lower die holder." A die fixing plate is fixedly mounted on the upper die holder to support the trimming die, and a punch fixing plate is fixedly mounted on the lower die holder to support the trimming punch. Through the precise alignment of the trimming punch and the trimming die, the blanking process of the sheet metal blank is completed.

[0003] Currently, in mainstream stamping die structures in the industry (such as the "Stamping Die for Sheet Metal Blanking" with announcement number CN215654328U), the trimming punch and punch fixing plate, and the trimming die and die fixing plate mostly adopt a rigid connection method of "interference fit + bolt fastening" or integral molding. The initial blanking accuracy of the die depends entirely on the dimensional tolerance control during machine tool processing (such as the assembly clearance between the punch fixing plate and the trimming punch, and the coaxiality between the die fixing plate and the trimming die). However, in actual mass production, the cutting edges of the trimming punch and the trimming die will continuously wear due to repeated extrusion and friction with the sheet metal parts. As the number of stamping cycles accumulates (usually reaching tens of thousands of cycles), the wear of the cutting edges gradually exceeds the allowable tolerance, resulting in problems such as burrs and dimensional deviations in the blanked sheet metal parts. The accuracy of the die drops sharply until it can no longer meet production requirements.

[0004] Because the existing structure has a fixed, non-adjustable connection between the trimming punch and the punch fixing plate, and between the trimming die and the die fixing plate, it is impossible to compensate for the wear of the cutting edge through position compensation. Therefore, after the die wears out, the entire trimming punch or die must be removed and replaced with a brand new cutting edge component. This repair method has two major problems: First, the repair cost is high. The processing and procurement cost of brand new punch and die cutting edges is high, and the worn parts that are replaced cannot be repaired and are directly scrapped, resulting in a waste of resources. Second, the production interruption time is long. The replacement process requires disassembling the fixing plate and calibrating the position of the new component. The entire process usually takes several hours or even longer, which seriously affects the continuity of the production line and reduces the overall production efficiency. Utility Model Content

[0005] Therefore, in order to solve the problem that repairs to severely worn molds can only be carried out by replacing the punch and die cutting edges, resulting in low production efficiency, this utility model provides a stamping machine, the specific technical solution of which is as follows: A stamping machine includes a machine body and an upper die holder and a lower die holder respectively disposed on the machine body; the upper die holder is provided with a die cavity fixing plate, and the lower die holder is provided with a punch fixing plate; the punch fixing plate is provided with a first locking member and a trimming punch module slidably connected to the punch fixing plate, the first locking member passing through the punch fixing plate and threadedly connected to the trimming punch module; the upper die holder is provided with a die cavity fixing plate; the die cavity fixing plate is provided with a second locking member and a trimming die cavity module slidably connected to the die cavity fixing plate, the second locking member passing through the die cavity fixing plate and threadedly connected to the trimming die cavity module.

[0006] In the aforementioned stamping press, the trimming punch module can slide along the punch fixing plate and is fixed in position by a first locking member; the trimming die module can slide along the die fixing plate and is fixed in position by a second locking member. When the cutting edge wears, it is not necessary to replace the entire module. Simply loosen the corresponding locking member and push the trimming punch or trimming die module to slide along the fixing plate. The wear can be compensated by adjusting the relative position of the two modules. By using "adjustment and compensation" instead of "overall replacement," there is no need to purchase new punch and die cutting edges, reducing maintenance costs and time. This stamping press solves the problem of low production efficiency caused by the need to replace punch and die cutting edges for repairs when the mold is severely worn.

[0007] Furthermore, a set of gaskets is provided between the edge-cutting concave module and the concave mold fixing plate.

[0008] Furthermore, the gasket set consists of multiple standard gaskets of different thicknesses, and the thickness of the gasket set can be adjusted by adding, removing, or replacing the gaskets.

[0009] Furthermore, the lower die base is provided with a through hole, the machine body is provided with a first cylinder, the first cylinder is provided with an ejector pin, the ejector pin passes through the through hole and is slidably connected with the through hole, and the first cylinder and the ejector pin cooperate to lift the workpiece to be stamped.

[0010] Furthermore, the stamping machine also includes a part-retrieving device, which is disposed on the machine body; the part-retrieving device is used to retrieve the stamped workpiece.

[0011] Furthermore, the part-retrieving device includes a first connecting plate, a first sliding mechanism, and a first adsorption mechanism; the first connecting plate is disposed on the body, and the first connecting plate is provided with a first slide rail that is inclined; the first sliding mechanism is disposed on the first connecting plate, the moving end of the first sliding mechanism is disposed on the first slide rail and is slidably connected to the first slide rail; and the first adsorption mechanism is disposed on the moving end of the first sliding mechanism.

[0012] Furthermore, the first sliding mechanism includes a first slide rail, a first sliding block, and a second cylinder; the first slide rail is horizontally disposed on the first connecting plate, the first sliding block is disposed on the first slide rail and slidably connected to the first slide rail; the second cylinder is disposed on the first connecting plate, the second cylinder is connected to the first sliding block, and the second cylinder is used to drive the first sliding block to slide along the first slide rail.

[0013] Furthermore, the first sliding block is provided with a second slide rail arranged in a vertical direction.

[0014] Furthermore, the first adsorption mechanism includes a first roller, a first fixing block, a connecting rod, a second roller, and an adsorption assembly; the first roller is disposed within the first slide rail and is slidably connected to the first slide rail; the first roller is disposed on the first fixing block, the connecting rod is inserted into the first fixing block, the second roller is sleeved on the connecting rod and is rotatably connected to the connecting rod, the second roller is slidably connected to the second slide rail, and the connecting rod is connected to the adsorption assembly.

[0015] Furthermore, the adsorption assembly includes a damping rod and a suction cup, the damping rod is connected to the connecting rod, and the suction cup is disposed on the damping rod. Attached Figure Description

[0016] The present invention can be further understood from the following description taken in conjunction with the accompanying drawings. The components in the drawings are not necessarily drawn to scale; rather, the focus is on illustrating the principles of the embodiments. In different views, the same reference numerals designate corresponding parts.

[0017] Figure 1 This is a partial structural schematic diagram of the stamping machine according to an embodiment of the present invention; Figure 2 This is one of the structural schematic diagrams of the part-removing device of the stamping machine according to an embodiment of the present utility model; Figure 3 This is the second schematic diagram of the part-removing device of the stamping machine according to an embodiment of the present invention.

[0018] Explanation of reference numerals in the attached figures: 1-Upper mold base; 2-Lower mold base; 3-Die fixing plate; 4-Punch fixing plate; 5-First locking component; 6-Second locking component; 7-Part removal device; 71-First connecting plate; 72-First sliding mechanism; 721-First slide rail; 722-First sliding block; 723-Second cylinder; 73-First suction mechanism; 731-First roller; 732-First fixing block; 733-Connecting rod; 734-Second roller; 8-First slide rail; 9-Second slide rail; 10-Damping rod; 11-Suction cup; 12-Punch module; 13-Die module. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with its embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and do not limit its scope of protection.

[0020] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0022] In this utility model, "first" and "second" do not represent a specific quantity or order, but are merely used to distinguish names.

[0023] like Figure 1 As shown, a stamping machine according to one embodiment of the present invention includes a machine body and an upper die holder 1 and a lower die holder 2 respectively disposed on the machine body; the upper die holder 1 is provided with a die fixing plate 3, and the lower die holder 2 is provided with a punch fixing plate 4; the punch fixing plate 4 is provided with a first locking member 5 and a trimming punch module 12 slidably connected to the punch fixing plate 4, the first locking member 5 passing through the punch fixing plate 4 and threadedly connected to the trimming punch module 12; the upper die holder 1 is provided with a die fixing plate 3; the die fixing plate 3 is provided with a second locking member 6 and a trimming die module 13 slidably connected to the die fixing plate 3, the second locking member 6 passing through the die fixing plate 3 and threadedly connected to the trimming die module 13.

[0024] In the aforementioned stamping press, the trimming punch module 12 can slide along the punch fixing plate 4, and its position is fixed by the first locking member 5; the trimming die module 13 can slide along the die fixing plate 3, and its position is fixed by the second locking member 6. When the cutting edge wears, it is not necessary to replace the entire module. Simply loosen the corresponding locking member and push the trimming punch module 12 or the trimming die module 13 to slide along the fixing plate. The wear can be compensated by adjusting the relative position of the two. By "adjusting and compensating" instead of "replacing the whole module", there is no need to purchase new punch and die cutting edges, reducing maintenance costs and maintenance time. This stamping press solves the problem that when the mold is severely worn, maintenance can only be carried out by replacing the punch and die cutting edges, resulting in low production efficiency.

[0025] like Figure 1 As shown, in one embodiment, a shim set is provided between the trimming concave module 13 and the die fixing plate 3. The shim set consists of multiple standard shims of different thicknesses, and the thickness of the shim set can be adjusted by adding, removing, or replacing the shims. The lower die base 2 has a through hole, and the machine body has a first cylinder with an ejector pin on it. The ejector pin passes through the through hole and is slidably connected to it. The first cylinder and the ejector pin cooperate to lift the workpiece to be stamped. Thus, the shim set consists of multiple standard shims of different thicknesses, and the distance between the trimming concave module 13 and the die fixing plate 3 can be finely adjusted by adding, removing, or replacing the shims. Combined with the sliding adjustment of the module, it can more accurately compensate for the wear of the cutting edge, avoid stamping size errors caused by compensation deviations, and stably ensure the product processing accuracy.

[0026] like Figures 2-3As shown, in one embodiment, the lower mold base 2 is provided with a through hole, the machine body is provided with a first cylinder, the first cylinder is provided with an ejector pin, the ejector pin passes through the through hole and is slidably connected to the through hole, the first cylinder and the ejector pin cooperate to lift the stamped workpiece; the part-removing device 7 includes a first connecting plate 71, a first sliding mechanism 72 and a first suction mechanism 73; the first connecting plate 71 is provided on the machine body, the first connecting plate 71 is provided with an inclined first slide rail 8, the first sliding mechanism 72 is provided on the first connecting plate 71, the moving end of the first sliding mechanism 72 is provided on the first slide rail 8 and is slidably connected to the first slide rail 8, the first suction mechanism 73 is provided on the moving end of the first sliding mechanism 72; the first sliding mechanism 72 includes a first slide rail 721, a first sliding block 722 and a second cylinder 723; the first slide rail 721 is horizontally provided on the first connecting plate 71, the first sliding block 722 is provided on the first slide rail 721 and is slidably connected to the first slide rail 721; The second cylinder 723 is mounted on the first connecting plate 71 and connected to the first sliding block 722. The second cylinder 723 is used to drive the first sliding block 722 to slide along the first slide rail 721. The first sliding block 722 is provided with a second slide rail 9 arranged vertically. The first adsorption mechanism 73 includes a first roller 731, a first fixing block 732, a connecting rod 733, a second roller 734, and an adsorption assembly. The first roller 731 is located in the first slide rail 721 and is connected to the first sliding block 722. A slide rail 8 is slidably connected; the first roller 731 is disposed on the first fixed block, the connecting rod 733 is inserted into the first fixed block 732, the second roller 734 is sleeved on the connecting rod 733 and rotatably connected to the connecting rod 733, the second roller 734 is slidably connected to the second slide rail 9, and the connecting rod 733 is connected to the adsorption assembly; the adsorption assembly includes a damping rod 10 and a suction cup 11, the damping rod 10 is connected to the connecting rod 733, and the suction cup 11 is disposed on the damping rod 10.Thus, the part-picking device 7 drives the first sliding block 722 to move along the slide rail via the second cylinder 723. With the guidance of the inclined first slide rail 8 and the roller, it can drive the suction cup 11 to move precisely to the workpiece position, replacing manual part picking, reducing labor input costs, and avoiding the operation delay of manual part picking. This enables the part picking process after stamping to be automated, significantly improving the overall efficiency of the production line. The damping rod 10 in the adsorption component can buffer the contact force between the suction cup 11 and the workpiece, avoiding damage or deformation of the workpiece surface due to excessive adsorption force or hard contact. It is especially suitable for processing stamped parts made of easily damaged materials. Compared with mechanical clamping, the suction cup 11 adsorption method can distribute force more evenly, further reducing the risk of product damage and ensuring the finished product qualification rate. With the first slide rail 8 and the second slide rail 9 provided, when the first roller 731 moves along the first slide rail 8, the suction cup 11 is lifted and lowered.

[0027] The technical features of the above embodiments can be combined in any way. For the sake of brevity, 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.

[0028] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A stamping machine, characterized in that, The device includes a body and an upper mold base and a lower mold base respectively disposed on the body; the upper mold base is provided with a concave mold fixing plate, and the lower mold base is provided with a convex mold fixing plate; the convex mold fixing plate is provided with a first locking member and a trimming convex module slidably connected to the convex mold fixing plate, the first locking member passing through the convex mold fixing plate and threadedly connected to the trimming convex module; the upper mold base is provided with a concave mold fixing plate; the concave mold fixing plate is provided with a second locking member and a trimming concave module slidably connected to the concave mold fixing plate, the second locking member passing through the concave mold fixing plate and threadedly connected to the trimming concave module.

2. The stamping machine according to claim 1, characterized in that, A set of gaskets is provided between the edge-cutting concave module and the concave mold fixing plate.

3. The stamping machine according to claim 2, characterized in that, The gasket set consists of multiple standard gaskets of different thicknesses, and the thickness of the gasket set can be adjusted by adding, removing, or replacing the gaskets.

4. The stamping machine according to claim 1, characterized in that, The lower die base is provided with a through hole, and the machine body is provided with a first cylinder. The first cylinder is provided with an ejector pin, which passes through the through hole and is slidably connected to the through hole. The first cylinder and the ejector pin cooperate to lift the workpiece to be stamped.

5. The stamping machine according to claim 1, characterized in that, The stamping machine also includes a part-removing device, which is located on the machine body; the part-removing device is used to remove the stamped workpiece.

6. The stamping machine according to claim 5, characterized in that, The part-retrieving device includes a first connecting plate, a first sliding mechanism, and a first adsorption mechanism; the first connecting plate is disposed on the body, and the first connecting plate is provided with a first slide rail that is inclined; the first sliding mechanism is disposed on the first connecting plate, the moving end of the first sliding mechanism is disposed on the first slide rail and is slidably connected to the first slide rail; and the first adsorption mechanism is disposed on the moving end of the first sliding mechanism.

7. The stamping machine according to claim 6, characterized in that, The first sliding mechanism includes a first slide rail, a first sliding block, and a second cylinder; the first slide rail is horizontally disposed on the first connecting plate, the first sliding block is disposed on the first slide rail and slidably connected to the first slide rail; the second cylinder is disposed on the first connecting plate, the second cylinder is connected to the first sliding block, and the second cylinder is used to drive the first sliding block to slide along the first slide rail.

8. The stamping machine according to claim 7, characterized in that, The first sliding block is provided with a second slide rail arranged in a vertical direction.

9. The stamping machine according to claim 8, characterized in that, The first adsorption mechanism includes a first roller, a first fixing block, a connecting rod, a second roller, and an adsorption assembly; the first roller is disposed in the first slide rail and is slidably connected to the first slide rail; the first roller is disposed on the first fixing block, the connecting rod is inserted into the first fixing block, the second roller is sleeved on the connecting rod and is rotatably connected to the connecting rod, the second roller is slidably connected to the second slide rail, and the connecting rod is connected to the adsorption assembly.

10. The stamping machine according to claim 9, characterized in that, The adsorption assembly includes a damping rod and a suction cup. The damping rod is connected to the connecting rod, and the suction cup is disposed on the damping rod.

Images