Die for trimming and flanging

Abstract

The utility model discloses a die for trimming and flanging, which belongs to the technical field of automobile die production, and comprises an upper die part and a lower die part which are matched with each other, the upper die part comprises an upper die seat (8) and a female die (2), the outer side of the female die (2) is provided with a trimming cutter block (4) fixed on the upper die seat (8), and a nitrogen spring (6) fixed on the upper die seat (8) is arranged below the female die (2); the lower die part comprises a lower die base (7) and a male die (1), a flanging cutter block (3) fixed to the lower die base (7) is arranged on the outer side of the male die (1), and a nitrogen spring (5) fixed to the lower die base (7) is arranged below the male die (1). According to the utility model, two sets of traditional trimming and flanging dies are improved into one set of die, and trimming and flanging are carried out in sequence in the die assembly process, so that the machine tool space occupied by the die during production is reduced, and the manufacturing cost of the die and the production cost of parts are reduced.

Description

Technical Field

[0001] This utility model relates to the field of automotive mold manufacturing technology, and in particular to a mold for cutting and flanging edges. Background Technology

[0002] like Figure 5 As shown, the formed sheet 9 needs to undergo two processes, trimming and flanging, before proceeding to the next process. Traditionally, trimming and flanging require two separate sets of molds. The traditional design of two sets of molds occupies a significant amount of machine tool space, making it impossible to install multiple sets of molds for simultaneously producing parts on the machine tool, thus failing to meet customer requirements. Utility Model Content

[0003] The purpose of this invention is to provide a mold for cutting and flanging edges to solve the above-mentioned problems.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A mold for trimming and flanging includes an upper mold portion and a lower mold portion that cooperate with each other. The upper mold portion includes an upper mold base and a die disposed on the upper mold base. A trimming cutter block fixed to the upper mold base is disposed on the outside of the die. A nitrogen spring B fixed to the upper mold base is disposed below the die. The lower mold portion includes a lower mold base and a punch disposed on the lower mold base. A flanging cutter block fixed to the lower mold base is disposed on the outside of the punch. A nitrogen spring A fixed to the lower mold base is disposed below the punch.

[0006] As a preferred technical solution, the punch is movably connected to the lower die base, and the die is movably connected to the upper die base.

[0007] As a preferred technical solution, the elastic force of the nitrogen spring A is much greater than the sum of the weight of the upper die and the elastic force of the nitrogen spring B. This ensures that the cutting edge process is completed before the flanging process during the mold closing process.

[0008] Compared with the prior art, the advantages of this utility model are: the utility model has a simple and compact structure and low cost. It improves the traditional two sets of molds for cutting and flanging into one mold. During the mold closing process, it realizes cutting the edge first and then flanging the edge, making the cooperation between processes simpler and more compact. It reduces the machine tool space occupied during mold production and reduces the manufacturing cost of molds and the production cost of parts. Attached Figure Description

[0009] Figure 1 This is a mold structure diagram of the punch of this utility model;

[0010] Figure 2This is a mold structure diagram of the lower mold of this utility model;

[0011] Figure 3 This is a mold structure diagram of the concave mold of this utility model;

[0012] Figure 4 This is a mold structure diagram of the upper mold of this utility model;

[0013] Figure 5 This is a mold structure diagram of the mold closing process of this utility model.

[0014] In the diagram: 1. Punch; 2. Die; 3. Flanging cutter block; 4. Trimming cutter block; 5. Nitrogen spring A; 6. Nitrogen spring B; 7. Lower die base; 8. Upper die base; 9. Sheet metal. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] Example:

[0017] A mold for trimming and flanging includes an upper mold portion and a lower mold portion that cooperate with each other, wherein,

[0018] like Figure 3 and Figure 4 As shown, the upper mold part includes an upper mold base 8 and a cavity mold 2 disposed on the upper mold base 8. A trimming knife block 4 fixed to the upper mold base 8 is disposed on the outside of the cavity mold 2. A nitrogen spring B6 fixed to the upper mold base 8 is disposed below the cavity mold 2.

[0019] like Figure 1 and Figure 2 As shown, the lower mold part includes a lower mold base 7 and a punch 1 disposed on the lower mold base 7. A flanging cutter block 3 fixed to the lower mold base 7 is disposed on the outside of the punch 1. A nitrogen spring A5 fixed to the lower mold base 7 is disposed below the punch 1.

[0020] The punch 1 is movably connected to the lower die base 7, and the die 2 is movably connected to the upper die base 8. That is, the punch 1 is movable on the lower die base 7, and the die 2 is movable on the upper die base 8.

[0021] The elastic force of the nitrogen spring A5 is much greater than the sum of the weight of the upper die 2 and the elastic force of the nitrogen spring B6.

[0022] When using, refer to Figure 5The sheet material 9 is placed on the punch 1, and then the upper die base 8 is moved. The die 2 contacts the sheet material 9 first. Due to the pressure of the lower die, the nitrogen spring B6 above the die 2 is compressed. During the compression of the nitrogen spring B6, the cutting blade 4 on the upper die base begins to contact the sheet material 9 and cut it until the nitrogen spring B6 is no longer compressed. At this time, the cutting process is completed. Since the upper die base 8 is still moving downward, the punch 1 is under pressure, and the nitrogen spring A5 below the punch is compressed. During the compression of the nitrogen spring A5, the edge of the sheet material 9 that needs to be turned is bent upward under the action of the turning blade 3 until the nitrogen spring A5 is no longer compressed. At this time, the turning process is completed, the cutting and turning die is closed, and the product is obtained after mold separation.

[0023] This mold effectively solves the problem of insufficient machine tool space during mold production and reduces mold costs.

[0024] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A mold for trimming and flanging edges, characterized in that, The upper mold part and the lower mold part are mutually cooperating. The upper mold part includes an upper mold base (8) and a die (2) disposed on the upper mold base (8). A trimming knife block (4) fixed on the upper mold base (8) is disposed on the outside of the die (2). A nitrogen spring B (6) fixed on the upper mold base (8) is disposed below the die (2). The lower mold part includes a lower mold base (7) and a punch (1) disposed on the lower mold base (7). A flanging knife block (3) fixed on the lower mold base (7) is disposed on the outside of the punch (1). A nitrogen spring A (5) fixed on the lower mold base (7) is disposed below the punch (1).

2. The mold for trimming and flanging according to claim 1, characterized in that, The punch (1) is movably connected to the lower die base (7), and the die (2) is movably connected to the upper die base (8).

3. The mold for trimming and flanging according to claim 1, characterized in that, The elastic force of the nitrogen spring A (5) is greater than the sum of the weight of the upper die (2) and the elastic force of the nitrogen spring B (6).

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