U-shaped forming mechanism

Abstract

The utility model discloses a U-shaped forming mechanism which comprises a lower die holder and an upper die holder, the upper die holder is installed at the top end of the lower die holder, an upper base plate is installed at the bottom end of the upper die holder, two lower forming inserts are rotatably installed on the lower die holder, and the two lower forming inserts are symmetrically arranged; and an upper forming insert matched with the lower forming insert is mounted at the bottom end of the upper base plate. According to the utility model, two lower forming inserts are rotatably mounted on a lower die holder and are symmetrically arranged; two ends of the tension spring are respectively connected with the lower forming insert and the lower die holder; after stamping is completed, the product can be ejected out of the insert and the lower die, and subsequent material taking is facilitated; and by arranging the tension spring, product springback can be corrected, and scrapping is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field related to U-shaped forming, in particular to a U-shaped forming mechanism. Background Art

[0002] When stamping U-shaped parts, in order to increase the wear resistance and pressure resistance of the punch holder, a high-strength insert such as steel is usually embedded in the stamping part of the punch holder, and then fixed to the punch holder by screws. However, after a long period of stamping, the insert of this connection structure has a poor fixing effect and is prone to movement or loosening. In addition, after multiple stampings of the mold, the stamped parts will adhere to the insert, making it difficult to detach and fall off, and it is inconvenient to unload and remove.

[0003] The existing publication number CN212598342U discloses a U-shaped plate stamping die for automobiles, which limits the vertical displacement of the inlay block, has a good locking effect, and increases the service life of the die, thereby improving the stamping efficiency; in addition, the setting of the ejection mechanism can realize rapid ejection of the molded parts adhered to the inlay block after the stamping is completed, making unloading simple. However, although the existing technology facilitates the removal of materials to a certain extent, it is not easy to eject the inlay and the lower die, which is not convenient for subsequent material removal. For this reason, we propose a U-shaped forming mechanism. Utility Model Content

[0004] The utility model aims to provide a U-shaped forming mechanism to solve the problems in the prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a U-shaped forming mechanism, comprising a lower die base and an upper die base, the upper die base is installed at the top of the lower die base, the upper pad is installed at the bottom of the upper die base, and two lower forming inserts are rotatably installed on the lower die base, and the two lower forming inserts are symmetrically arranged; the upper forming insert that cooperates with the lower forming insert is installed at the bottom of the upper pad.

[0006] Preferably, the upper molding insert is in a U-shaped structure; each of the lower molding inserts is provided with a semi-U-shaped groove that cooperates with the upper molding insert.

[0007] Preferably, it also includes a tension spring, and both ends of the tension spring are respectively connected to the lower molding insert and the lower mold base.

[0008] Compared with the prior art, the beneficial effects of the utility model are:

[0009] 1. The lower die seat is rotatably mounted with two lower forming inserts, which are symmetrically arranged; the two ends of the tension spring are respectively connected to the lower forming insert and the lower die seat; after the stamping is completed, the product can be ejected from the insert and the lower die to facilitate subsequent material removal.

[0010] 2. The setting of tension spring can correct product rebound and reduce scrap. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0012] Figure 1 It is a structural schematic diagram of the utility model;

[0013] Figure 2 It is a schematic diagram of the structure of the utility model before molding;

[0014] Figure 3 It is a schematic diagram of the structure of the utility model during molding.

[0015] In the figure: 1. lower die base; 2. lower mold plate; 3. lower molding insert; 4. upper molding insert; 5. upper pad; 6. upper die base; 7. tension spring. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are 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. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is claimed, but merely represents selected embodiments of the utility model.

[0017] See also Figure 1-3 In the embodiment of the utility model, a U-shaped forming mechanism comprises a lower die base 1 and an upper die base 6, an upper die base 6 is installed at the top of the lower die base 1, and an upper pad 5 is installed at the bottom of the upper die base 6, and the lower die base 1 is rotatably installed with two lower forming inserts 3, and the two lower forming inserts 3 are symmetrically arranged; the lower end of the upper pad 5 is installed with an upper forming insert 4 that cooperates with the lower forming insert 3; the shape of the upper forming insert 4 is a U-shaped structure; each of the lower forming inserts 3 is provided with a semi-U-shaped groove that cooperates with the upper forming insert 4; it also includes a tension spring 7, and the two ends of the tension spring 7 are respectively connected to the lower forming insert 3 and the lower die base 1; the lower die base is rotatably installed with two lower forming inserts, and the two lower forming inserts are symmetrically arranged; the two ends of the tension spring are respectively connected to the lower forming insert and the lower die base; after the stamping is completed, the product can be ejected from the insert and the lower die to facilitate subsequent material removal; the setting of the tension spring can correct product rebound and reduce scrap.

[0018] The working principle of the utility model is as follows: two lower forming inserts are rotatably installed on the lower die seat, and the two lower forming inserts are symmetrically arranged; two ends of the tension spring are respectively connected with the lower forming insert and the lower die seat; after the stamping is completed, the product can be ejected from the insert and the lower die, which is convenient for subsequent material removal; the setting of the tension spring can correct the product rebound and reduce scrap.

[0019] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A U-shaped forming mechanism, comprising a lower die base (1) and an upper die base (6), wherein the upper die base (6) is mounted on the top end of the lower die base (1), and an upper pad (5) is mounted on the bottom end of the upper die base (6), characterized in that: The lower die base (1) is rotatably mounted with two lower molding inserts (3), and the two lower molding inserts (3) are symmetrically arranged; the bottom end of the upper pad (5) is mounted with an upper molding insert (4) that cooperates with the lower molding insert (3); the upper molding insert (4) is in the shape of a U-shaped structure; each of the lower molding inserts (3) is provided with a semi-U-shaped groove that cooperates with the upper molding insert (4); and a tension spring (7) is also included, and the two ends of the tension spring (7) are respectively connected to the lower molding insert (3) and the lower die base (1).

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