Punching and blanking die

Abstract

The utility model relates to the related technical field of dies, in particular to a punching and blanking die which comprises a fixing belt body, and a pipe fixing box is fixedly connected to the outer side surface of the fixing belt body. According to the punching and blanking die, during stamping and punching, a workpiece needing to be punched is placed on the concave-convex die, the upper die base is pressed downwards towards the lower die base, at the moment, the buffer rod shrinks gradually, the transition base plate makes contact with the concave-convex die, and at the moment, the upper end of the concave-convex die and the workpiece to be punched enter the transition base plate; after a transition base plate reaches a designated position, the transition base plate is limited by a limiting column, a punching male die is connected with a spring in a penetrating mode, an upper die base plate is stressed to extrude the spring, the spring extrudes a female die under the action of elastic force, the female die drives a material ejecting block fixed to the female die, and the punching male die and the upper die base plate are connected in a penetrating mode. The material ejecting block extrudes and ejects a to-be-punched workpiece under the action of the spring, so that the to-be-punched workpiece cannot move, then the punching male die punches the workpiece, a punched hole type material falls out of the blanking opening after punching, and edge cutting, blanking and one-time forming are achieved while punching is conducted through the design of the punching die of the blanking and blanking composite process.

Description

Technical Field

[0001] The utility model relates to the technical field related to molds, in particular to a punching and blanking mold. Background Art

[0002] A die is a tool that, under the action of an external force, makes a blank become a product of a specific shape and size. It is widely used in punching, die forging, cold heading, extrusion, powder metallurgy pressing, pressure casting, and compression or injection molding of engineering plastics, rubber, ceramics and other products. However, most of the existing punching and blanking dies do not have the integrated operation of punching, trimming and blanking. They often use a punching machine to punch the material first, and then trim it after punching. Therefore, a punching and blanking die is particularly needed.

[0003] However, most of the existing punching and blanking dies do not have the integrated operation of punching, trimming and blanking. They often use a punching machine to punch the material first, and then trim it after punching. The work efficiency is slow and cannot be applied to the batch processing of stamping parts that require punching and blanking processes. Utility Model Content

[0004] The utility model aims to provide a punching and blanking die to solve the problem that most of the existing punching and blanking dies mentioned in the above background technology do not have the integrated operation of punching, trimming and blanking. They often use a punching machine to punch the material first, and then align and trim the material after punching. The work efficiency is slow and it cannot be applied to the batch processing of stamping parts that require punching and blanking processes.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a punching and blanking die, comprising a lower die seat, the upper surface of the lower die seat is tightly connected with a lower die pad, the upper surface of the lower die pad is tightly connected with a concave and convex die fixing plate, the inner surface of the concave and convex die fixing plate is fixedly connected with a concave and convex die, one side surface of the concave and convex die fixing plate is fixedly connected with a cutting block, a blanking port is provided on the outer surface of the concave and convex die, a limiting column is fixedly connected with the upper surface of the lower die seat, a buffer rod is fixedly connected with the upper surface of the lower die seat, and the outer surface of one end of the buffer rod is fixedly connected to An upper die seat is connected, one side surface of the upper die seat is penetrated and connected with an upper positioning column, one side surface of the upper die seat is tightly connected with an upper die pad, the lower surface of the upper die pad is fixedly connected with a spring, one side surface of the upper die pad is tightly connected with a punch fixing plate, one side surface of the punch fixing plate is fixedly connected with a punching punch, the punching punch is penetrated and connected with a die, one side surface of the die is provided with a limiting groove, one side surface of the limiting groove is provided with a through hole, the lower surface of the die is fixedly connected with a top material block, and the outer surface of the top material block is penetrated and connected with a transition pad.

[0006] Preferably, the buffer rods are symmetrically arranged about the central axis of the lower mold base, and two groups of the limiting columns are arranged on the upper surface of the lower mold base.

[0007] Preferably, the upper die pad and the spring form a telescopic structure, and the upper die pad forms a telescopic structure through the spring and the punch fixing plate.

[0008] Preferably, the spring and the punch fixing plate are connected through, and the spring and the limiting groove form a telescopic structure.

[0009] Preferably, the punching punch and the through hole are through-connected, and the punching punch and the ejecting block are through-connected.

[0010] Preferably, the outer wall size of the ejection block matches the inner wall size of the transition pad, and the outer wall size of the punching punch matches the inner wall size of the ejection block.

[0011] Preferably, the outer wall size of the blanking port matches the inner wall size of the punching punch, and the outer wall size of the concave-convex die matches the inner wall size of the transition pad.

[0012] Preferably, the upper positioning column and the upper mold pad are connected through, and the upper positioning column and the transition pad are connected through.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: when punching holes, the workpiece to be punched is placed on the concave and convex dies, and the upper die seat is pressed downward in the direction of the lower die seat. At this time, the buffer rod gradually shrinks, and the transition pad first contacts the concave and convex dies. At this time, the upper end of the concave and convex dies and the workpiece to be punched enter the transition pad, and the excess workpiece edge material of the concave and convex dies will be squeezed on the outer ring of the concave and convex dies, and the cutting block will perform edge trimming. When the transition pad reaches the specified position After that, the limiting column will be limited. Because the punching punch is connected with the spring, the upper die pad is forced to squeeze the spring. The spring squeezes the die due to the elastic force. The die drives the ejecting block fixed with it. The ejecting block squeezes and supports the workpiece to be punched under the action of the spring, so that the workpiece to be punched cannot move. Then the punching punch punches the workpiece. After punching, the punched hole material will fall out from the blanking port. Through the stamping die design of the blanking and blanking composite process, the edge trimming and blanking can be achieved at the same time of punching, and the forming is realized in one time. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall side view of the appearance structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the cooperation between the concave die and the limiting groove of the utility model;

[0016] Figure 3This is a schematic diagram of the structure of the top material block and the transition pad cooperating with each other in the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the cooperation between the concave and convex molds and the cutting block of the utility model;

[0018] Figure 5 It is a schematic diagram of the structure of the cooperation between the punching punch and the ejecting block of the utility model.

[0019] In the figure: 1. lower die seat; 2. lower die pad; 3. die fixing plate; 4. concave and convex dies; 5. cutting block 6. blanking port; 7. limiting column; 8. buffer rod; 9. upper die seat; 10. upper positioning column; 11. upper die pad; 12. spring; 13. convex die fixing plate; 14. punching punch; 15. concave die; 16. limiting groove; 17. through hole; 18. ejector block; 19. transition pad. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-5The utility model provides a technical solution: a punching and blanking die, comprising a lower die base 1, the upper surface of the lower die base 1 is tightly connected with a lower die pad 2, the upper surface of the lower die pad 2 is tightly connected with a concave and convex die fixing plate 3, the inner surface of the concave and convex die fixing plate 3 is fixedly connected with a concave and convex die 4, one side surface of the concave and convex die fixing plate 3 is fixedly connected with a cutting block 5, a blanking port 6 is provided on the outer side surface of the concave and convex die 4, the upper surface of the lower die base 1 is fixedly connected with a limiting column 7, the upper surface of the lower die base 1 is fixedly connected with a buffer rod 8, the outer side surface of one end of the buffer rod 8 is fixedly connected with an upper die base 9, and one side surface of the upper die base 9 An upper positioning column 10 is connected through it, one side surface of the upper die seat 9 is tightly connected with an upper die pad 11, the lower surface of the upper die pad 11 is fixedly connected with a spring 12, one side surface of the upper die pad 11 is tightly connected with a punch fixing plate 13, one side surface of the punch fixing plate 13 is fixedly connected with a punching punch 14, the punching punch 14 is connected through it with a die 15, one side surface of the die 15 is provided with a limiting groove 16, one side surface of the limiting groove 16 is provided with a through hole 17, the lower surface of the die 15 is fixedly connected with a top material block 18, the outer side surface of the top material block 18 is connected through it with a transition pad 19, through the lower die seat 1, The lower die pad 2, the concave and convex die fixing plate 3, the concave and convex die 4, the cutting block 5, the blanking port 6, the limiting column 7, the buffer rod 8, the upper die seat 9, the upper positioning column 10, the upper die pad 11, the spring 12, the punch fixing plate 13, the punching punch 14, the concave die 15, the limiting groove 16, the through hole 17, the top block 18 and the transition pad 19 are set up. During use, first, when punching, place the workpiece to be punched on the concave and convex die 4, and press the upper die seat 9 downward toward the lower die seat 1. At this time, the buffer rod 8 gradually shrinks, and the transition pad 19 first contacts the concave and convex die 4. At this time, the upper end of the concave and convex die 4 and the workpiece to be punched enter In the transition pad 19, the excess workpiece edge material of the concave and convex molds 4 will be squeezed on the outer circle of the concave and convex molds 4, and the cutting block 5 will perform edge trimming processing. After the transition pad 19 reaches the specified position, it will be limited by the limiting column 7. Because the punching punch 14 is connected with the spring 12, the upper mold pad 11 is forced to squeeze the spring 12, and the spring 12 squeezes the die 15 due to the elastic force. The die 15 drives the top block 18 fixed thereto. The top block 18 squeezes and supports the workpiece to be punched under the action of the spring 12, so that the workpiece to be punched cannot move, and then the punching punch 14 punches the workpiece. After punching, the punched hole-shaped material will fall out from the blanking port 6.

[0022] Furthermore, the buffer rods 8 are symmetrically arranged with respect to the central axis of the lower die base 1, and two groups of limit columns 7 are arranged on the upper surface of the lower die base 1. Through the arrangement of the buffer rods 8 and the limit columns 7, during the stamping process of the upper die base 9 on the lower die base 1, the buffer rods 8 on both sides between the upper die base 9 and the lower die base 1 can play a buffering role during stamping, and the limit columns 7 limit the distance between the upper die base 9 and the lower die base 1 to prevent deformation of the workpiece caused by excessive extrusion during punching.

[0023] Furthermore, the upper die pad 11 and the spring 12 form a telescopic structure. The upper die pad 11 forms a telescopic structure through the spring 12 and the punch fixing plate 13. Through the setting of the upper die pad 11, it can be ensured that the position of the punch fixing plate 13 will not shift during the stamping and punching process, thereby ensuring the accuracy of the punching position.

[0024] Furthermore, the spring 12 and the punch fixing plate 13 are connected through, and the spring 12 and the limiting groove 16 form a telescopic structure. The setting of the spring 12 can play a buffering role when punching, and at the same time can enhance the fixing effect of the workpiece that needs to be punched.

[0025] Furthermore, the punching punch 14 and the through hole 17 are connected through, and the punching punch 14 and the ejection block 18 are connected through. Through the setting of the punching punch 14, the position of the punching punch 14 is limited by the through hole 17 and the ejection block 18 to ensure the accuracy of the punching position. At the same time, the ejection block 18 can press the workpiece to be punched to prevent displacement and hole position deviation.

[0026] Furthermore, the outer wall size of the ejection block 18 matches the inner wall size of the transition pad 19, and the outer wall size of the punching punch 14 matches the inner wall size of the ejection block 18. Through the setting of the ejection block 18 and the punching punch 14, the ejection block 18 can fix the workpiece to be punched more stably during the stamping process.

[0027] Furthermore, the outer wall size of the blanking port 6 is consistent with the inner wall size of the punching punch 14, and the outer wall size of the concave-convex die 4 is consistent with the inner wall size of the transition pad 19. Through the setting of the blanking port 6 and the concave-convex die 4, the punched workpiece and the hole parts dropped by the punching can be directly discharged, providing a certain work efficiency.

[0028] Furthermore, the upper positioning column 10 and the upper die pad 11 are connected through, and the upper positioning column 10 and the transition pad 19 are connected through. Through the setting of the upper positioning column 10, the punching position is more accurate and will not deviate from the direction.

[0029] Working principle: First, when punching holes, place the workpiece to be punched on the concave-convex die 4, and press the upper die holder 9 downward toward the lower die holder 1. At this time, the buffer rod 8 gradually shrinks, and the transition pad 19 first contacts the concave-convex die 4. At this time, the upper end of the concave-convex die 4 and the workpiece to be punched enter the transition pad 19, and the excess workpiece edge material of the concave-convex die 4 will be squeezed on the outer ring of the concave-convex die 4, and the cutting block 5 will perform the edge trimming process. When the transition pad 19 reaches the finger After being positioned, the limiting column 7 will be limited. Since the punching punch 14 is connected with the spring 12, the upper die pad 11 is forced to squeeze the spring 12. The spring 12 squeezes the die 15 due to the elastic force. The die 15 drives the ejecting block 18 fixed thereto. The ejecting block 18 squeezes and supports the workpiece to be punched under the action of the spring 12, so that the workpiece to be punched cannot move. Then the punching punch 14 punches the workpiece. After punching, the punched hole-shaped material will fall out from the blanking port 6.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A punching and blanking die, comprising a lower die base (1), characterized in that: The upper surface of the lower die base (1) is tightly connected to the lower die pad (2), the upper surface of the lower die pad (2) is tightly connected to the concave and convex die fixing plate (3), the inner surface of the concave and convex die fixing plate (3) is fixedly connected to the concave and convex die (4), one side surface of the concave and convex die fixing plate (3) is fixedly connected to the cutting block (5), the outer surface of the concave and convex die (4) is provided with a blanking opening (6), the upper surface of the lower die base (1) is fixedly connected to the limiting column (7), the upper surface of the lower die base (1) is fixedly connected to the buffer rod (8), the outer surface of one end of the buffer rod (8) is fixedly connected to the upper die base (9), and one side surface of the upper die base (9) is penetrated and connected to the upper positioning column (10), One side surface of the upper die seat (9) is tightly connected to an upper die pad (11), and the lower surface of the upper die pad (11) is fixedly connected to a spring (12). One side surface of the upper die pad (11) is tightly connected to a punch fixing plate (13), and one side surface of the punch fixing plate (13) is fixedly connected to a punching punch (14). The punching punch (14) is connected through a die (15). A limiting groove (16) is provided on one side surface of the die (15), and a through hole (17) is provided on one side surface of the limiting groove (16). A top material block (18) is fixedly connected to the lower surface of the die (15), and the outer side surface of the top material block (18) is connected through a transition pad (19).

2. The punching and blanking die according to claim 1, characterized in that: The buffer rods (8) are symmetrically arranged about the central axis of the lower die base (1), and two groups of the limiting columns (7) are arranged on the upper surface of the lower die base (1).

3. The punching and blanking die according to claim 1, characterized in that: The upper die pad (11) and the spring (12) form a telescopic structure, and the upper die pad (11) forms a telescopic structure through the spring (12) and the punch fixing plate (13).

4. The punching and blanking die according to claim 1, characterized in that: The spring (12) and the punch fixing plate (13) are connected through each other, and the spring (12) and the limiting groove (16) form a telescopic structure.

5. The punching and blanking die according to claim 1, characterized in that: The punching punch (14) and the through hole (17) are connected through each other, and the punching punch (14) and the ejection block (18) are connected through each other.

6. The punching and blanking die according to claim 1, characterized in that: The outer wall size of the ejection block (18) matches the inner wall size of the transition pad (19), and the outer wall size of the punching punch (14) matches the inner wall size of the ejection block (18).

7. The punching and blanking die according to claim 1, characterized in that: The outer wall size of the blanking opening (6) matches the inner wall size of the punching punch (14), and the outer wall size of the concave-convex die (4) matches the inner wall size of the transition pad (19).

8. The punching and blanking die according to claim 1, characterized in that: The upper positioning column (10) and the upper die pad (11) are connected through and through, and the upper positioning column (10) and the transition pad (19) are connected through and through.

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