Cold stamping springback control die

Abstract

The invention belongs to the technical field of cold stamping, and particularly discloses a cold stamping springback control die which comprises a male die and a female die which are matched with each other, hinged shafts are rotationally connected to the ends, away from the male die, of the two side forming faces of the female die, limiting plates are fixed to the hinged shafts, and the cold stamping springback control die further comprises a driving part used for driving the hinged shafts to rotate. Push plates are slidably connected to the two horizontal parts of the female die, the hinge shafts penetrate through and extend out of the female die and are fixedly provided with gears, and racks meshed with the gears are fixed to the push plates; first cavities are formed in the horizontal parts of the male die and the female die, a plurality of first air holes communicated with the first cavities are formed in the horizontal parts, a second cavity is formed in the forming part of the male die, and a plurality of second air holes communicated with the second cavity are formed in the two side forming surfaces of the male die; a connecting assembly is arranged between the first cavity and the second cavity. By the adoption of the scheme, the problem of part stamping springback can be solved.

Description

technical field [0001] The invention belongs to the technical field of cold stamping, and in particular relates to a springback control mold for cold stamping. Background technique [0002] In the national strategic development planning report "New Energy Vehicle Industry Development Plan (2021-2035)", the important strategic position of my country's future new energy vehicles is more clearly defined, so the development of domestic passenger vehicles is also paying more and more attention to the lightweight of the body , collision safety and driving economy and other functional requirements, coupled with the increasingly mature development of the world's body metal material technology, the application of high-strength steel plates in body structures has become more popular. However, cold stamping high-strength plate has complex characteristics such as large yield stress, high tensile strength, low elongation, large forming force, weak formability, and low hardening index n va...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies in the prior art, the present invention provides a cold stamping control rebound die to solve the problem that the second horizontal plate is pressed by both sides of the upper die and the lower die, and the friction is relatively large, which makes it difficult to deflect vertically. part, and there will be scratches on the upper and lower surfaces of the second horizontal plate part

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