Punching device for stamping die machining

Abstract

The utility model discloses a punching device for stamping die machining, and relates to the technical field of stamping dies. A fixing frame is fixed above the workbench, a first air cylinder is fixedly arranged at the upper end of the fixing frame, a male die is fixedly connected to the movable end of the first air cylinder, a mounting groove is formed in the position, under the male die, of the fixing frame, a stamping frame is fixedly arranged in the mounting groove, a female die is fixedly arranged at the end of the stamping frame, and a stamping hole matched with the male die is formed in the female die. A side pressing structure is arranged on one side of the stamping frame, and a top pressing structure is arranged on the other side; a discharging structure is arranged in the stamping frame; a material receiving box is arranged below the workbench and communicates with the discharging structure. When punching is carried out, a workpiece to be punched is placed on the female die on the punching frame, and the workpiece is limited and fixed through the side pressing structure and the top pressing structure before punching, so that the punching precision is prevented from being influenced; and after punching is completed, the punched fertilizer is collected through the discharging structure.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping dies, in particular to a punching device for stamping die processing. Background Art

[0002] Stamping dies are special process equipment used to process materials (metal or non-metal) into parts (or semi-finished products) during cold stamping. They are called cold stamping dies (commonly known as cold stamping dies). Stamping is a pressure processing method that uses a die installed on a press to apply pressure to the material at room temperature to separate or plastically deform it, thereby obtaining the desired parts.

[0003] However, the existing die punching device still has problems in actual use, such as insufficient stability, which can easily affect the punching accuracy; it is inconvenient to disassemble and replace the punching module and it is inconvenient to collect and transport the waste. Therefore, we propose a punching device for stamping die processing to solve these problems.

[0004] In the prior art, a Chinese patent with a publication number of CN217393476U is proposed to solve the above-mentioned technical problems. The technical solution disclosed in the patent document is as follows: it includes a platform, a limiting groove is fixedly connected at the middle position of the top of the platform, a fixing frame is fixedly connected at the rear end of the top of the platform, a die base is arranged at the top of the fixing frame, and a punching die is embedded at the middle position of the bottom of the die base. The punching device for punching die processing is respectively fixedly connected with a connecting seat at the middle position of both sides of the die base. When in use, the lifting sleeve sleeved on the outside of the stable guide rod is connected and fixed to both sides of the die base through the connecting seat. When the hydraulic cylinder drives the telescopic column to drive the die base and the punching die to rise and fall for punching processing, the lifting sleeve driven by the connecting seat is lifted and lowered on the outside of the stable guide rod, so as to limit and stabilize the die base and the punching die in the die-closing punching processing, ensure the accuracy of the punching processing, and solve the problem of insufficient stability and easy to affect the punching accuracy. However, the lack of fixation and limiting of the workpiece during punching makes the workpiece unstable during the punching process, affecting the accuracy of the punching. Utility Model Content

[0005] The utility model aims to provide a punching device for punching die processing to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A punching device for stamping die processing comprises a workbench; a fixed frame is fixed above the workbench, a first cylinder is fixed on the upper end of the fixed frame, a punch is fixedly connected to the movable end of the first cylinder, a mounting groove is provided at the fixed table directly below the punch, a stamping frame is fixed in the mounting groove, a die is fixed at the end of the stamping frame, and a stamping hole matching the punch is provided on the die; a plate to be stamped is placed on the die, a side pressure structure is provided on one side of the stamping frame, and a top pressure structure is provided on the other side; the side pressure structure is used to limit the side of the stamping plate, and the top pressure structure is used to limit and press the top of the stamping plate; a discharge structure is provided in the stamping frame, and the discharge structure is used to discharge waste after punching; a material receiving box is provided below the workbench, and the material receiving box is communicated with the discharge structure.

[0008] When punching, the workpiece to be punched is placed on the die on the punching frame, and the workpiece is limited and fixed by the side pressure structure and the top pressure structure before punching to prevent the workpiece from moving during punching, making the punching unstable and preventing the punching accuracy from being affected; when punching, the first cylinder is started, and the first cylinder drives the punch to descend and cooperate with the punch to punch holes on the workpiece; after the punching is completed, the fertilizer after the punching is collected by the discharge structure to prevent the punching holes on the die from being blocked and affecting the subsequent punching.

[0009] A further improvement of the technical solution of the utility model is that the discharge structure includes a collecting box, which is fixedly arranged at the lower end of the die and completely covers the punching holes on the die; a conveying pipe is fixedly connected to the lower end of the collecting box, and the conveying pipe is communicated with the collecting box and the collecting box.

[0010] By adopting the above technical solution, after the workpiece is punched, the fertilizer will fall into the collection box through the punching hole on the die, then fall through the conveying pipe, and finally fall into the receiving box, preventing the fertilizer from clogging the die.

[0011] A further improvement of the technical solution of the utility model is that: threads are provided on the first push rod and the second push rod, screw holes are provided on the upper ends of the first push block and the second push block, the first push rod and the second push rod are respectively threadedly connected to the screw holes on the corresponding push blocks and fixed by nuts.

[0012] The above-mentioned technical solution is adopted, in which a first push rod and a second push rod are threadedly connected to the screw holes on the push block through screw holes. When processing workpieces of different thicknesses, the position of the push block is adjusted by rotating the first push rod and the second push rod, and then fixed by nuts to adapt to workpieces of different thicknesses.

[0013] A further improvement of the technical solution of the utility model is that: the side pressure structure includes a side pressure block, which is L-shaped and rotatably connected to the stamping frame; a first push rod is provided at the upper end of the L-shaped vertical part of the side pressure block, which is fixedly connected to the stamping frame, one end of the first push rod is fixedly connected to the first push block, a first spring is provided on the horizontal end of the side pressure block L, and the two ends of the first spring are respectively connected to the die and the side pressure block; a convex rod is fixedly connected to one side of the first spring; a lifting plate is provided at the lower end of the convex rod, a second cylinder is provided at the lower end of the lifting plate, and the movable end of the second cylinder is fixedly connected to the lower end of the lifting plate.

[0014] The above-mentioned technical solution is adopted. In this solution, when side pressure is applied, the second cylinder is started and the second cylinder descends. Initially, the spring is contracted. When the cylinder descends, the lifting plate descends. At this time, the spring rebounds and drives the side pressure block to rotate, so that the first top block squeezes and limits the side of the workpiece.

[0015] A further improvement of the technical solution of the utility model is that: preferably, the top pressing structure includes a fixed block, which is fixedly connected to the upper end of the lifting plate; a top pressing block is rotatably connected above the fixed block, a rotating groove is provided on the top pressing block, a rotating rod is fixedly provided on the side of the stamping frame close to the top pressing block, and the rotating rod slides in the rotating groove; a second push rod is fixedly provided on the top of the top pressing block, and a second push block is fixedly connected to the lower end of the second push rod.

[0016] The above-mentioned technical solution is adopted. In this embodiment, when the cylinder descends, the fixed block descends so that one end of the top pressure block rotates around the fixed block. As the top pressure block rotates, the top pressure block will also move downward along the rotating groove, so that the second top block pressurizes and fixes the upper end of the workpiece.

[0017] A further improvement of the technical solution of the present utility model is that: on the basis of Example 1, the present utility model provides a technical solution: preferably, the upper end of the die is fixedly connected to a limiting strip.

[0018] The above-mentioned technical scheme is adopted. In this embodiment, by setting limit bars, the workpiece is placed between the limit bars before punching, the workpiece is initially positioned by the limit bars, and then the workpiece is further limited and tightened by the side pressure structure and the top pressure structure.

[0019] A further improvement of the technical solution of the utility model is that: the limiting strip comprises a top plate and a bottom plate, and a second spring is fixedly arranged between the top plate and the bottom plate.

[0020] The above technical solution is adopted, in which a second spring is set. When the first cylinder is punching the workpiece, the second spring provides a buffer for the punch during punching, preventing the punch from directly impacting the die, causing damage to the punch and the die, and affecting the subsequent punching accuracy.

[0021] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0022] 1. The utility model provides a punching device for punching die processing. When punching, the workpiece to be punched is placed on the die on the punching frame. Before punching, the workpiece is limited and fixed by a side pressure structure and a top pressure structure to prevent the workpiece from moving during punching, making the punching unstable and affecting the punching accuracy. When punching, the first cylinder is started, and the first cylinder drives the punch to descend and cooperate with the punch, so as to punch holes on the workpiece. After the punching is completed, the fertilizer after the punching is collected by the discharge structure to prevent the punching holes on the die from being blocked and affecting the subsequent punching.

[0023] 2. The utility model provides a punching device for punching die processing. By setting the limit bars, the workpiece is placed between the limit bars before punching, and the workpiece is initially positioned by the limit bars, and then the workpiece is further limited and tightened by the side pressure structure and the top pressure structure. And by setting the second spring, when the first cylinder punches the workpiece, the second spring provides a buffer for the punch during punching, preventing the punch from directly impacting the die, causing damage to the punch and the die, and affecting the subsequent punching accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The utility model will be further described below in conjunction with the accompanying drawings.

[0025] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0026] Figure 2 It is a schematic diagram of the overall side view structure of the utility model;

[0027] Figure 3 This is a schematic diagram of the punching frame structure of the utility model;

[0028] Figure 4 It is a schematic diagram of the side structure of the punching frame of the utility model;

[0029] Figure 5 This is a schematic diagram of the internal cross-sectional structure of the punching frame of the utility model;

[0030] In the figure: 1. workbench; 2. fixed frame; 3. first cylinder; 4. punch; 5. stamping frame; 6. die; 7. material collecting box; 8. side pressure block; 9. first push rod; 10. first push block; 11. first spring; 12. convex rod; 13. lifting plate; 14. second cylinder; 15. fixed block; 16. push block; 17. rotating groove; 18. rotating rod; 19. second push rod; 20. second push block; 21. collecting box; 22. conveying pipeline; 23. limit strip; 24. second spring. DETAILED DESCRIPTION

[0031] The present invention is further described in detail below in conjunction with the embodiments:

[0032] like Figure 1-5 As shown, the utility model provides a punching device for stamping die processing, including a workbench 1; a fixed frame 2 is fixed above the workbench 1, a first cylinder 3 is fixedly provided on the upper end of the fixed frame 2, a punch 4 is fixedly connected to the movable end of the first cylinder 3, a mounting groove is provided at the position of the fixed table just below the punch 4, a stamping frame 5 is fixedly provided in the mounting groove, a die 6 is fixedly provided at the end of the stamping frame 5, and a stamping hole matching the punch 4 is provided on the die 6; a plate to be stamped is placed on the die 6, a side pressure structure is provided on one side of the stamping frame 5, and a top pressure structure is provided on the other side; the side pressure structure is used to limit the side of the stamping plate, and the top pressure structure is used to limit and press the top of the stamping plate; a discharge structure is provided in the stamping frame 5, and the discharge structure is used to discharge waste after punching; a material receiving box 7 is provided below the workbench 1, and the material receiving box 7 is communicated with the discharge structure.

[0033] In this embodiment, when punching, the workpiece to be punched is placed on the die 6 on the punching frame 5, and the workpiece is limited and fixed by the side pressure structure and the top pressure structure before punching to prevent the workpiece from moving during punching, making the punching unstable and preventing the punching accuracy from being affected; when punching, the first cylinder 3 is started, and the first cylinder 3 drives the punch 4 to descend and cooperate with the punch 4, so as to punch holes on the workpiece; after the punching is completed, the fertilizer after the punching is collected by the discharge structure to prevent the punching holes on the die 6 from being blocked and affecting the subsequent punching.

[0034] In this embodiment, preferably, the discharge structure includes a collecting box 21, which is fixedly arranged at the lower end of the die 6 and completely covers the punching holes on the die 6; a conveying pipe 22 is fixedly connected to the lower end of the collecting box 21, and the conveying pipe 22 is communicated with the collecting box 21 and the material receiving box 7.

[0035] When the workpiece is punched, the fertilizer will fall into the collecting box 21 through the punching holes on the die 6, then fall through the conveying pipe 22, and finally fall into the receiving box 7, preventing the fertilizer from clogging the die 6.

[0036] Preferably, the first push rod 9 and the second push rod 19 are both provided with threads, and the upper ends of the first top block 10 and the second top block 20 are both provided with screw holes. The first push rod 9 and the second push rod 19 are respectively threadedly connected to the screw holes on the corresponding top blocks and fixed by nuts.

[0037] By setting the first push rod 9 and the second push rod 19 to be threadedly connected with the screw holes on the push block through the screw holes, when processing workpieces of different thicknesses, the position of the push block is adjusted by rotating the first push rod 9 and the second push rod 19, and then fixed by nuts to adapt to workpieces of different thicknesses.

[0038] On the basis of Example 1, the utility model provides a technical solution: preferably, the side pressure structure includes a side pressure block 8, which is L-shaped and rotatably connected to the stamping frame 5; a first push rod 9 is provided at the upper end of the L-shaped vertical part of the side pressure block 8, and the first push rod 9 is fixedly connected to the stamping frame 5, and one end of the first push rod 9 is fixedly connected to the first push block 10, and a first spring 11 is provided on the horizontal end of the side pressure block L, and the two ends of the first spring 11 are respectively connected to the die 6 and the side pressure block 8; a convex rod 12 is fixedly connected to one side of the first spring 11; a lifting plate 13 is provided at the lower end of the convex rod 12, and a second cylinder 14 is provided at the lower end of the lifting plate 13, and the movable end of the second cylinder 14 is fixedly connected to the lower end of the lifting plate 13.

[0039] In this embodiment, when side pressure is applied, the second cylinder 14 is started and the second cylinder 14 descends. Initially, the spring is contracted. When the cylinder descends, the lifting plate 13 descends. At this time, the spring rebounds and drives the side pressure block 8 to rotate, so that the first top block 10 squeezes and limits the side of the workpiece.

[0040] like Figure 1-5 As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, the top pressing structure includes a fixed block 15, which is fixedly connected to the upper end of the lifting plate 13; a top pressing block 16 is rotatably connected above the fixed block 15, and a rotating groove 17 is provided on the top pressing block 16, and a rotating rod 18 is fixedly provided on the side of the stamping frame 5 close to the top pressing block 16, and the rotating rod 18 slides in the rotating groove 17; a second push rod 19 is fixedly provided on the top of the top pressing block 16, and a second push block 20 is fixedly connected to the lower end of the second push rod 19.

[0041] In this embodiment, when the cylinder descends, the fixed block 15 descends so that one end of the top pressure block 16 rotates around the fixed block 15. As the top pressure block 16 rotates, the top pressure block 16 will also move downward along the rotating groove 17, so that the second top block 20 pressurizes and fixes the upper end of the workpiece.

[0042] On the basis of Example 1, the utility model provides a technical solution: preferably, the upper end of the die 6 is fixedly connected to a limiting strip 23 .

[0043] In this embodiment, by setting the limit bars 23, the workpiece is placed between the limit bars 23 before punching, the workpiece is preliminarily positioned by the limit bars 23, and then the workpiece is further limited and tightened by the side pressure structure and the top pressure structure.

[0044] The limiting strip 23 includes a top plate and a bottom plate, and a second spring 24 is fixedly disposed between the top plate and the bottom plate.

[0045] By setting the second spring 24, when the first cylinder 3 punches the workpiece, the second spring 24 provides a buffer for the punch 4 during punching, preventing the punch 4 from directly impacting the die 6, thereby damaging the punch 4 and the die 6 and affecting the subsequent punching accuracy.

[0046] The working principle of the punching device for stamping die processing is described in detail below.

[0047] like Figure 1-5 As shown, when punching, the workpiece to be punched is placed on the die 6 on the punching frame 5. When side pressure is applied before punching, the second cylinder 14 is started, and the second cylinder 14 descends. Initially, the spring is contracted. When the cylinder descends, the lifting plate 13 descends. At this time, the spring rebounds and drives the side pressure block 8 to rotate, so that the first top block 10 squeezes and limits the side of the workpiece to prevent the workpiece from moving during punching, making the punching unstable and preventing the punching accuracy from being affected. When the cylinder descends, the fixed The block 15 descends so that one end of the top pressure block 16 rotates around the fixed block 15. As the top pressure block 16 rotates, the top pressure block 16 will also move downward along the rotating groove 17, so that the top pressure block 16 pressurizes and fixes the upper end of the workpiece; when punching, the first cylinder 3 is started, and the first cylinder 3 drives the punch 4 to descend and cooperate with the punch 4, so as to punch holes on the workpiece; after the punching is completed, the fertilizer after the punching is collected through the discharge structure to prevent the punching holes on the die 6 from being blocked and affecting the subsequent punching.

[0048] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A punching device for punching die processing, comprising a workbench (1); characterized in that: A fixed frame (2) is fixed above the workbench (1), a first cylinder (3) is fixedly provided at the upper end of the fixed frame (2), a punch (4) is fixedly connected to the movable end of the first cylinder (3), a mounting groove is provided at a position of the fixed frame directly below the punch (4), a punching frame (5) is fixedly provided in the mounting groove, a die (6) is fixedly provided at the end of the punching frame (5), a punching hole matching the punch (4) is provided on the die (6); a plate to be punched is placed on the die (6), a side pressure structure is provided on one side of the punching frame (5), and a top pressure structure is provided on the other side; the side pressure structure is used to limit the side of the punching plate, and the top pressure structure is used to limit and press the top of the punching plate; a discharge structure is provided in the punching frame (5), and the discharge structure is used to discharge waste after punching; a material receiving box (7) is provided below the workbench (1), and the material receiving box (7) is communicated with the discharge structure.

2. A punching device for punching die processing according to claim 1, characterized in that: The side pressure structure comprises a side pressure block (8), the side pressure block (8) is L-shaped, and the side pressure block (8) is rotatably connected to the punching frame (5); a first push rod (9) is provided at the upper end of the L-shaped vertical part of the side pressure block (8), the first push rod (9) is fixedly connected to the punching frame (5), one end of the first push rod (9) is fixedly connected to the first push block (10), a first spring (11) is provided on the L-shaped horizontal end of the side pressure block (8), the two ends of the first spring (11) are respectively connected to the die (6) and the side pressure block (8); one side of the first spring (11) is fixedly connected to a convex rod (12); a lifting plate (13) is provided at the lower end of the convex rod (12), a second cylinder (14) is provided at the lower end of the lifting plate (13), and a movable end of the second cylinder (14) is fixedly connected to the lower end of the lifting plate (13).

3. A punching device for punching die processing according to claim 2, characterized in that: The top-pressing structure comprises a fixed block (15), wherein the fixed block (15) is fixedly connected to the upper end of the lifting plate (13); a top-pressing block (16) is rotatably connected above the fixed block (15), and a rotating groove (17) is provided on the top-pressing block (16); a rotating rod (18) is fixedly provided on one side of the punching frame (5) close to the top-pressing block (16), and the rotating rod (18) slides in the rotating groove (17); a second top rod (19) is fixedly provided on the top end of the top-pressing block (16), and a second top block (20) is fixedly connected to the lower end of the second top rod (19).

4. A punching device for punching die processing according to claim 3, characterized in that: The material discharge structure comprises a collecting box (21), the collecting box (21) being fixedly arranged at the lower end of the die (6) and completely covering the punching hole on the die (6); the lower end of the collecting box (21) is fixedly connected to a conveying pipe (22), and the conveying pipe (22) is in communication with the collecting box (21) and the material receiving box (7).

5. A punching device for punching die processing according to claim 4, characterized in that: The upper end of the female mold (6) is fixedly connected to a limiting strip (23).

6. A punching device for punching die processing according to claim 5, characterized in that: The first push rod (9) and the second push rod (19) are both provided with threads, the upper ends of the first push block (10) and the second push block (20) are both provided with screw holes, and the first push rod (9) and the second push rod (19) are respectively threadedly connected to the screw holes on the corresponding push blocks and fixed by nuts.

7. A punching device for punching die processing according to claim 6, characterized in that: The limiting strip (23) comprises a top plate and a bottom plate, and a second spring (24) is fixedly arranged between the top plate and the bottom plate.

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