A plate processing punch forming die

Abstract

The utility model discloses a kind of plate processing stamping forming die, it is related to plate processing technical field.Processing plate stamping forming die is provided with lower die seat, the lower die seat is symmetrically connected with guide pillar on it, the upper portion of the lower die seat is provided with upper die seat, the upper end of two guide pillars is all with the inner wall of upper die seat thread connection, the lower portion of the upper die seat is provided with male die, the top of the lower die seat is fixedly connected with base, the base is located the directly below of male die, the inner wall of the base is fixedly connected with punch plate.The die is through the synergic effect of clamping mechanism and negative pressure adsorption system, realizes the accurate positioning and double fixation of plate in stamping process, can be automatically centered and firmly clamps plate by clamping mechanism, ensure that it and die cavity always keep accurate alignment, utilize suction cup and plate are evenly adsorbed on the surface of base in large area, enhance the stability of plate under the stamping impact, effectively prevent its sliding, warping or deformation, improve the precision and quality of plate processing.

Description

Technical Field

[0001] This utility model relates to the field of sheet metal processing technology, and in particular to a sheet metal processing stamping die. Background Technology

[0002] Sheet metal stamping, as a crucial process for forming metal and non-metal sheets, is widely used in the automotive, home appliance, and aerospace industries. In traditional stamping dies, the positioning and fixing of sheet metal largely rely on manual operation or simple mechanical fixtures, resulting in low positioning accuracy and poor stability. During the stamping process, the sheet metal is prone to displacement, warping, or deformation due to impact forces, leading to dimensional deviations, poor surface quality, and severely impacting forming accuracy and consistency.

[0003] Existing stamping dies generally lack effective automatic positioning and anti-deviation mechanisms. During the stamping process, relying solely on simple clamps or manual placement makes precise centering difficult, and the sheet metal is prone to relative slippage and localized warping under stamping impact, leading to unstable finished product quality, surface indentations, or deformation, thus affecting product processing quality and yield. Therefore, there is an urgent need for a stamping die capable of automatic clamping and multi-point adsorption for coordinated fixation, to solve the problems of insufficient positioning accuracy, poor sheet metal stability, and difficulty in controlling forming quality in existing technologies. Utility Model Content

[0004] The purpose of this utility model is to provide a stamping die for sheet metal processing, which solves the technical problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sheet metal stamping die, comprising a lower die base, guide pillars symmetrically connected to the lower die base, an upper die base disposed above the lower die base, the upper ends of the two guide pillars being threadedly connected to the inner wall of the upper die base, a punch disposed below the upper die base, a base fixedly connected to the top of the lower die base, the base being located directly below the punch, a punching plate fixedly connected to the inner wall of the base, and a forming cavity adapted to the punch being opened on the punching plate; The inner wall of the lower mold base is provided with a feeding groove, a vacuum generator is fixedly connected to the inner wall of the feeding groove, a fixing block is fixedly connected to the inner wall of the feeding groove, and an air guide pipe is fixedly connected to the inner wall of the fixing block. The air inlet end of the air guide pipe is connected to the output end of the vacuum generator. The inner wall of the base is provided with several mounting grooves, and each mounting groove is provided with a vacuum suction cup. The air inlet end of each vacuum suction cup is connected to the air guide pipe.

[0006] Preferably, the base is provided with a movable groove, and a clamping mechanism is provided on the inner side of the movable groove, the clamping mechanism being located below the punching template; The clamping mechanism includes two clamping plates, the outer wall of which is slidably connected to the inner wall of the movable groove, and sliders are symmetrically connected to the bottom of the clamping plates.

[0007] Preferably, the base has symmetrically formed grooves. A limit rod is fixedly connected to the inner wall of the left groove. The inner wall of the left slider is slidably connected to the outer wall of the limit rod. A bidirectional screw is rotatably connected to the inner wall of the right groove. A servo motor is fixedly connected to the rear side wall of the base. The rear end of the bidirectional screw is fixedly connected to the output end of the servo motor. The inner wall of the right slider is threadedly connected to the outer wall of the bidirectional screw.

[0008] Preferably, the base has a feeding cavity located directly below the forming cavity.

[0009] Preferably, a die shank for connecting to a press is also provided between the upper die holder and the punch.

[0010] Preferably, a rectangular opening is provided at the right end of the base, and a guide plate is fixedly connected to the inner sidewall of the rectangular opening.

[0011] Compared with related technologies, the sheet metal stamping die provided by this utility model has the following beneficial effects: 1. This utility model provides a sheet metal stamping die. Through the synergistic action of a clamping mechanism and a negative pressure adsorption system, this die achieves precise positioning and dual fixation of the sheet metal during the stamping process. The clamping mechanism automatically centers and firmly clamps the sheet metal, ensuring precise alignment with the die cavity and effectively preventing inaccurate stamping positions and dimensional deviations caused by manual placement. Simultaneously, the negative pressure adsorption system uniformly adsorbs the sheet metal over a large area onto the base surface, forming a dual fixation mode of "clamping + adsorption." This significantly enhances the stability of the sheet metal under stamping impact, effectively preventing slippage, warping, or deformation, and improving the processing accuracy and surface quality of the sheet metal. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a partial structural diagram of the guide plate of this utility model; Figure 3 This is a schematic diagram of the structure of the material feeding trough of this utility model; Figure 4 This is a partial structural diagram of the upper mold base of this utility model; Figure 5 This is a partial structural diagram of the clamping plate of this utility model.

[0013] In the diagram: 1. Lower mold base; 2. Base; 201. Movable groove; 3. Guide post; 4. Upper mold base; 5. Mold handle; 6. Punch; 7. Mounting groove; 8. Slide groove; 9. Servo motor; 10. Bidirectional screw; 11. Limiting rod; 12. Clamping plate; 13. Slider; 14. Discharge groove; 15. Fixing block; 16. Air duct; 17. Vacuum generator; 18. Vacuum suction cup; 19. Rectangular opening; 20. Guide plate; 21. Punching plate; 2101. Forming cavity; 22. Discharge cavity. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0015] Example: Please see Figure 1 - Figure 5 This utility model provides a technical solution: a sheet metal stamping forming die, including a lower die base 1, guide pillars 3 symmetrically connected on the lower die base 1, an upper die base 4 above the lower die base 1, the upper ends of the two guide pillars 3 are threaded to the inner wall of the upper die base 4, a punch 6 is provided below the upper die base 4, a die shank 5 for connecting to a press is also provided between the upper die base 4 and the punch 6, a base 2 is fixedly connected to the top of the lower die base 1, the base 2 is located directly below the punch 6, a punching plate 21 is fixedly connected to the inner wall of the base 2, a forming cavity 2101 adapted to the punch 6 is opened on the punching plate 21, and a discharge cavity 22 is opened on the base 2, the discharge cavity 22 is located directly below the forming cavity 2101; The inner wall of the lower mold base 1 is provided with a feeding groove 14. A vacuum generator 17 is fixedly connected to the inner wall of the feeding groove 14. A fixing block 15 is fixedly connected to the inner wall of the feeding groove 14. A guide pipe 16 is fixedly connected to the inner wall of the fixing block 15. The air inlet end of the guide pipe 16 is connected to the output end of the vacuum generator 17. The inner wall of the base 2 is provided with several mounting grooves 7. Each mounting groove 7 is provided with a vacuum suction cup 18. The air inlet end of each vacuum suction cup 18 is connected to the guide pipe 16 to form a complete negative pressure circuit. The base 2 has a movable groove 201, and a clamping mechanism is provided on the inner side of the movable groove 201. The clamping mechanism is located below the punching template 21. The clamping mechanism includes two clamping plates 12. The outer wall of the clamping plate 12 is slidably connected to the inner wall of the movable groove 201. Slider 13 is symmetrically connected to the bottom of the clamping plate 12. Slide grooves 8 are symmetrically opened on the base 2. The inner wall of the left slide groove 8 is fixedly connected to a limit rod 11. The inner wall of the left slider 13 is slidably connected to the outer wall of the limit rod 11. The inner wall of the right slide groove 8 is rotatably connected to a bidirectional screw 10. A servo motor 9 is fixedly connected to the rear side wall of the base 2. The rear end of the bidirectional screw 10 is fixedly connected to the output end of the servo motor 9. The inner wall of the right slider 13 is threadedly connected to the outer wall of the bidirectional screw 10. By rotating the servo motor 9 forward and reverse, the two clamping plates 12 can be driven to move closer or further away synchronously, so as to achieve precise centering and clamping of the plate.

[0016] The base 2 is provided with a feeding cavity 22, which is located directly below the forming cavity 2101, to ensure that the sheet metal waste generated during stamping can fall into the feeding groove 14 through the feeding cavity 22 and the forming cavity 2101. A rectangular opening 19 is provided at the right end of the base 2. A guide plate 20 is fixedly connected to the inner wall of the rectangular opening 19 to guide the placement of the plate.

[0017] Working Principle: During operation, the sheet material to be processed is placed on the guide plate 20. The sheet material is then pushed to the left, gradually entering the movable groove 201 of the base 2. Next, the servo motor 9 drives the bidirectional screw 10 to rotate, causing the two clamping plates 12 to move synchronously towards each other until the sheet material is clamped and positioned, ensuring its center is aligned with the forming cavity 2101. Simultaneously, the vacuum generator 17 is activated, providing negative pressure to all vacuum suction cups 18 through the air guide pipe 16, firmly adsorbing the sheet material onto the surface of the base 2, effectively preventing displacement or warping during stamping. During stamping, the external press drives the upper die base 4 downwards along the guide post 3 via the die handle 5. The punch 6 descends accordingly, engaging with the forming cavity 2101 on the stamping die plate 21 to perform stamping and forming operations on the clamped and adsorbed sheet material. The dual action of clamping and adsorption ensures the dimensional accuracy and surface quality of the formed parts. After stamping, the upper die holder 4 drives the punch 6 to return, the vacuum generator 17 stops working, and the vacuum suction cup 18 releases the sheet metal. At this time, the operator can remove the processed sheet metal from the movable slot 201. The waste generated during stamping falls through the unloading chamber 22 and the unloading slot 14 to complete automatic unloading, which is convenient for collection and improves production efficiency. After unloading, the servo motor 9 reverses and drives the clamping plate 12 to reset, preparing for the next loading. This device achieves automatic centering and stable clamping of the sheet metal through the clamping mechanism driven by the servo motor 9, ensuring the accuracy of the stamping position. The vacuum generator 17, the air guide pipe 16, and the vacuum suction cup 18 form a negative pressure adsorption system, which can firmly adhere the sheet metal to the base 2 before stamping, effectively preventing the sheet metal from sliding and warping during the stamping process, thus improving the processing quality of the product.

[0018] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sheet metal stamping die, comprising a lower die base (1), wherein guide pillars (3) are symmetrically connected to the lower die base (1), and an upper die base (4) is disposed above the lower die base (1), wherein the upper ends of the two guide pillars (3) are threadedly connected to the inner wall of the upper die base (4), characterized in that: A punch (6) is provided below the upper die base (4), and a base (2) is fixedly connected to the top of the lower die base (1). The base (2) is located directly below the punch (6), and a punching plate (21) is fixedly connected to the inner wall of the base (2). A forming cavity (2101) adapted to the punch (6) is opened on the punching plate (21). The inner wall of the lower mold base (1) is provided with a feeding groove (14), a vacuum generator (17) is fixedly connected to the inner wall of the feeding groove (14), a fixing block (15) is fixedly connected to the inner wall of the feeding groove (14), and a guide pipe (16) is fixedly connected to the inner wall of the fixing block (15). The air inlet end of the guide pipe (16) is connected to the output end of the vacuum generator (17). The inner wall of the base (2) is provided with a number of mounting grooves (7). Each mounting groove (7) is provided with a vacuum suction cup (18). The air inlet end of each vacuum suction cup (18) is connected to the guide pipe (16).

2. The sheet metal stamping die according to claim 1, characterized in that: The base (2) is provided with a movable groove (201), and a clamping mechanism is provided on the inner side of the movable groove (201). The clamping mechanism is located below the punching template (21). The clamping mechanism includes two clamping plates (12), the outer wall of the clamping plate (12) is slidably connected to the inner wall of the movable groove (201), and the bottom of the clamping plate (12) is symmetrically connected to a slider (13).

3. The sheet metal stamping die according to claim 2, characterized in that: The base (2) is symmetrically provided with sliding grooves (8). The inner wall of the sliding groove (8) on the left is fixedly connected to a limiting rod (11). The inner wall of the slider (13) on the left is slidably connected to the outer wall of the limiting rod (11). The inner wall of the sliding groove (8) on the right is rotatably connected to a bidirectional screw (10). The rear side wall of the base (2) is fixedly connected to a servo motor (9). The rear end of the bidirectional screw (10) is fixedly connected to the output end of the servo motor (9). The inner wall of the slider (13) on the right is threadedly connected to the outer wall of the bidirectional screw (10).

4. The sheet metal stamping die according to claim 1, characterized in that: The base (2) has a feeding cavity (22) located directly below the forming cavity (2101).

5. The sheet metal stamping die according to claim 1, characterized in that: A mold shank (5) for connecting to a press is also provided between the upper mold base (4) and the punch (6).

6. The sheet metal stamping die according to claim 1, characterized in that: The base (2) has a rectangular opening (19) at its right end, and a guide plate (20) is fixedly connected to the inner wall of the rectangular opening (19).

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