Shaping structure of bending die

Abstract

The utility model discloses a shaping structure of a bending die, which relates to the technical field of dies and comprises an upper die component, a lower die component and a product material belt. A first nitrogen spring and a first guide rod are arranged in an upper die base of the upper die assembly in a sliding mode, the telescopic ends and the bottom ends of the first nitrogen spring and the first guide rod are connected with an upper die movable pressing plate, and an upper die punching head with a guide needle is arranged at the bottom end. A second nitrogen spring, a third nitrogen spring and a third guide rod are arranged in a lower die base of the lower die assembly in a sliding mode, the telescopic end of the second nitrogen spring and the top end of the third guide rod are connected with a lower die movable pressing plate, the telescopic end of the third nitrogen spring is connected with a lower die stamping head, bending shaping blocks are arranged on the two sides of the upper portion of the lower die base, bending gaps are formed between the bending shaping blocks and the lower die stamping head, and guide slopes are arranged on the end faces. Second guide rods are arranged on the two sides of the bottom end of the upper die base, guide holes are formed in the upper portion of the lower die base, and the second guide rods are inserted into the guide holes to ensure stability during die assembly. By means of the structure, products can be accurately positioned, the bending precision is guaranteed, and the production efficiency and the product quality are improved.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, specifically to a bending mold shaping structure. Background Technology

[0002] In the field of metal processing and manufacturing, bending is a crucial process for plastically deforming metal sheets to form specific angles and shapes. It is widely used in many industries such as automobile manufacturing, electronic device housing production, and building component processing. Traditional bending dies face numerous problems in practical applications, which seriously affect processing efficiency, product quality, and die lifespan.

[0003] In bending processes, accurate product positioning is a prerequisite for ensuring processing precision. However, traditional bending dies lack an effective positioning mechanism, making it easy for the product's position within the die to shift. When the die closes and presses the product, this positional shift leads to inaccurate bending angles and dimensional deviations, failing to meet the requirements of high-precision processing. This not only increases the scrap rate but also reduces production efficiency and raises production costs. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a bending die shaping structure, which solves the problems mentioned in the background.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a bending die shaping structure, comprising:

[0006] The upper mold assembly includes an upper mold base, in which a first nitrogen spring and a first guide rod are slidably installed. The telescopic end of the first nitrogen spring and the bottom end of the first guide rod are connected to the upper mold movable pressure plate. An upper mold punch head is installed at the bottom end of the upper mold movable pressure plate. A guide pin is installed inside the upper mold punch head, and the bottom end of the guide pin protrudes from the lower surface of the upper mold punch head.

[0007] The lower die assembly includes a lower die base. A second nitrogen spring, a third nitrogen spring, and a slidably disposed third guide rod are installed inside the lower die base. The telescopic end of the second nitrogen spring and the top end of the third guide rod are connected to the lower die movable pressure plate. The telescopic end of the third nitrogen spring is connected to the lower die punch head. Bending and shaping blocks are installed on the upper part of the lower die base and on both sides of the lower die punch head. A bending gap is reserved between the lower die punch head and the bending and shaping blocks. A guide slope is provided on the end face of the bending and shaping blocks facing the lower die punch head.

[0008] The product strip passes between the upper mold assembly and the lower mold assembly.

[0009] Furthermore, the upper surface of the lower die movable pressure plate is at a higher height than the upper surface of the lower die stamping head. When the upper die assembly moves downward, the upper die assembly contacts the lower die movable pressure plate first and works in conjunction with the guide to position the product strip.

[0010] Furthermore, a second guide rod is installed on both sides of the bottom end of the upper mold base, and several guide holes are reserved on the upper part of the lower mold base. When the upper mold assembly and the lower mold assembly are closed, the second guide rod is inserted into the guide hole.

[0011] Furthermore, the product strip and the lower mold movable pressure plate are both provided with several positioning holes. After the upper mold assembly and the lower mold assembly are closed, the guide pin is inserted into the positioning hole.

[0012] Furthermore, the first nitrogen spring is used to provide an upward elastic force for the upper mold movable pressure plate, the second nitrogen spring is used to provide an upward elastic force for the lower mold movable pressure plate, and the third nitrogen spring is used to provide an upward elastic force for the lower mold punch head.

[0013] Furthermore, the guide slope of the bending and shaping block is used to guide the product on the product strip into the bending gap during the bending process, thereby realizing the bending and shaping of the product.

[0014] This utility model provides a bending die shaping structure. Compared with the prior art, it has the following advantages:

[0015] This bending die forming structure, through the cooperation of the guide pin and the positioning hole, ensures that when the upper die assembly moves down during the die closing stage, the guide pin first inserts into the positioning hole to accurately position the product in the product strip, effectively preventing the subsequent product from shifting during stamping, greatly improving the processing accuracy of the product, reducing the scrap rate, and improving production efficiency and product quality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the disassembled structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the upper mold assembly in this utility model;

[0018] Figure 3 This is a schematic diagram of the lower mold assembly in this utility model;

[0019] Figure 4 This is a schematic diagram of the product material strip in this utility model;

[0020] Figure 5 This is a half-sectional view of the present invention in the mold-closed state;

[0021] Figure 6This is a half-sectional view of the present invention in the mold-open state.

[0022] In the diagram: 1. Upper die assembly; 11. Upper die base; 12. First nitrogen spring; 13. First guide rod; 14. Upper die movable pressure plate; 15. Upper die punch head; 16. Guide pin; 17. Second guide rod; 2. Lower die assembly; 21. Lower die base; 22. Second nitrogen spring; 23. Third guide rod; 24. Lower die movable pressure plate; 25. Lower die punch head; 26. Bending and shaping block; 261. Guide slope; 27. Third nitrogen spring; 28. Guide hole; 3. Product strip; 31. Positioning hole. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-6 This utility model provides a technical solution: a bending die forming structure, including an upper die assembly 1, a lower die assembly 2, and a product strip 3. The upper die assembly 1 includes an upper die base 11, inside which a first nitrogen spring 12 is installed, and a first guide rod 13 is slidably arranged. The telescopic end of the first nitrogen spring 12 and the bottom end of the first guide rod 13 are connected to the upper die movable pressure plate 14. The bottom end of the upper die movable pressure plate 14 is installed with an upper die punch head 15. Inside the upper die punch head 15 is a guide pin 16, the bottom end of which protrudes from the lower surface of the upper die punch head 15. The lower die assembly 2... The device includes a lower die base 21, inside which a second nitrogen spring 22 and a third nitrogen spring 27 are installed, and a third guide rod 23 is slidably arranged. The telescopic end of the second nitrogen spring 22 and the top of the third guide rod 23 are connected to the lower die movable pressure plate 24. The telescopic end of the third nitrogen spring 27 is connected to the lower die punch head 25. Bending and shaping blocks 26 are installed on the upper part of the lower die base 21 and on both sides of the lower die punch head 25. A bending gap is reserved between the lower die punch head 25 and the bending and shaping blocks 26, and the end face of the bending and shaping blocks 26 facing the lower die punch head 25 is provided with a guide slope 261.

[0025] The height of the upper surface of the lower die movable pressure plate 24 is higher than the height of the upper surface of the lower die punch head 25, so that when the upper die assembly 1 moves down, it first contacts the lower die movable pressure plate 24, and together with the guide pin 16, positions the product strip 3.

[0026] The upper mold base 11 has two second guide rods 17 installed on both sides of the bottom end. The upper part of the lower mold base 21 has several guide holes 28 reserved. When the upper mold assembly 1 and the lower mold assembly 2 are closed, the second guide rods 17 are inserted into the guide holes 28 to ensure the stability when the mold is closed and opened.

[0027] Both the product strip 3 and the lower die movable pressure plate 24 have several positioning holes 31 pre-drilled inside. After the upper die assembly 1 and the lower die assembly 2 are closed, the guide pin 16 is inserted into the positioning hole 31 to position the product in the product strip 3 before stamping, so as to prevent the subsequent product from shifting during stamping.

[0028] This structure divides the stamping process of the product strip 3 into a mold closing stage and a mold opening stage, specifically:

[0029] During the mold closing stage, the upper mold assembly 1 moves downward with the upper punch table. During the downward movement, the guide pin 16 first inserts into the positioning hole 31 to position the product in the product strip 3. Then the upper mold assembly 1 continues to move downward, the upper mold punch head 15 presses the product, and the product presses the lower mold punch head 25. In this way, the upper mold punch head 15 and the lower mold punch head 25 clamp the product together and move downward, ensuring that the product will not swing or tilt during the movement. As the product moves downward again, the bent edge of the product will enter the bending gap between the lower mold punch head 25 and the bending and shaping block 26. Under the action of the guide inclined surface 261, the bent edge will be squeezed to make it continue to bend inward, thus changing the bending angle of the product and ensuring that it is within the tolerance range.

[0030] During the mold opening stage, the upper mold assembly 1 moves upward with the upper punch table, but the upper mold punch head 15 is kept still by the force of the first nitrogen spring 12. Only the upper mold base 11 moves upward. As the upward movement continues, the stroke of the first nitrogen spring 12 on the upper mold punch head 15 is released. At this time, the upper mold punch head 15 and the lower mold punch head 25 will clamp the product and move upward together, so that the product is separated from the bending and shaping block 26. Then the material can be fed forward to start the next round of mold closing process.

Claims

1. A bending die shaper structure characterized by comprising: The utility model relates to a kind of stamping machine, including: Upper die assembly (1), including upper die seat (11), first nitrogen gas spring (12) and slidingly arranged first guide rod (13) are mounted inside the upper die seat (11), the telescopic end of the first nitrogen gas spring (12) and the bottom end of first guide rod (13) are connected upper die movable platen (14), upper die stamping head (15) is mounted at the bottom end of the upper die movable platen (14), guide needle (16) is mounted inside the upper die stamping head (15), the bottom end of the guide needle (16) protrudes from the lower surface of upper die stamping head (15); Lower die assembly (2), including lower die seat (21), second nitrogen gas spring (22), third nitrogen gas spring (27) and slidingly arranged third guide rod (23) are mounted inside the lower die seat (21), the telescopic end of the second nitrogen gas spring (22) and the top end of third guide rod (23) are connected lower die movable platen (24), the telescopic end of the third nitrogen gas spring (27) is connected lower die stamping head (25), bending shaping block (26) is mounted on the upper portion of the lower die seat (21) and located on both sides of lower die stamping head (25), bending gap is reserved between the lower die stamping head (25) and bending shaping block (26), the end face of the bending shaping block (26) towards lower die stamping head (25) is provided with guide inclined surface (261); Product tape (3) passes between upper die assembly (1) and lower die assembly (2).

2. The bending die shaping structure according to claim 1, wherein The upper surface of the lower die movable platen (24) is higher than the upper surface of the lower die stamping head (25), when the upper die assembly (1) moves downward, the upper die assembly (1) first contacts the lower die movable platen (24) and positions the product tape (3) with the guide needle (16).

3. The bending die shaping structure according to claim 1, wherein Second guide rod (17) is mounted on both sides of the bottom end of the upper die seat (11), a plurality of guide holes (28) are reserved and arranged on the upper portion of the lower die seat (21), when the upper die assembly (1) and the lower die assembly (2) are closed, the second guide rod (17) is inserted into the guide hole (28).

4. The bending die shaping structure according to claim 1, wherein A plurality of positioning holes (31) are reserved and arranged in the product tape (3) and the lower die movable platen (24), after the upper die assembly (1) and the lower die assembly (2) are closed, the guide needle (16) is inserted into the positioning hole (31).

5. The bending die shaping structure according to claim 1, wherein The first nitrogen gas spring (12) provides elastic force for the upward movement of the upper die movable platen (14), the second nitrogen gas spring (22) provides elastic force for the upward movement of the lower die movable platen (24), and the third nitrogen gas spring (27) provides elastic force for the upward movement of the lower die stamping head (25).

6. The bending die shaping structure according to claim 1, wherein The guide inclined surface (261) of the bending shaping block (26) guides the product on the product tape (3) to enter the bending gap during the bending process, achieving the bending shaping of the product.

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