Multi-point swinging head press forming method for panel three-dimensional curved surface forming

Abstract

The invention relates to a multi-point swinging head press forming method for panel three-dimensional curved surface forming, and belongs to the field of mechanical engineering. In the forming process, multi-point reconfigurable die profiles are constantly converted, and metal plate materials are gradually and continuously formed into a curved surface; a multi-point reconfigurable die is composedof discretized swinging heads which are adjustable in height and are arranged regularly; and multi-point press forming serves as a basis, swinging bodies of the swinging heads can restrain plate materials in a self-coordination manner along with deformation of the plate materials in the forming process, and accordingly the plate materials are formed. The multi-point swinging head press forming method has the beneficial effects that during forming, the state of suspension of the plate materials does not exist, the plate materials are constantly restrained by base bodies, stress is more uniform,and generation of defects can be effectively prevented. The swinging bodies are sufficiently attached to the plate materials, forming faces are continuously increased, stress of the plate materials is more uniform and stable, local deformation is reduced, and the surface quality is obviously improved. Dislocation between acting force of the upper base body and the lower base body is reduced, thelocal bending effect is weakened, and the forming precision is obviously improved.

Description

technical field [0001] The invention relates to the field of mechanical engineering, in particular to a forming method of a multi-point swing head press used for forming three-dimensional curved surfaces of plates. Background technique [0002] With the rapid development of modern products in the direction of diversification and small batches, the shortcomings of traditional molds such as long design cycle, high manufacturing cost, difficult debugging, and poor versatility have become increasingly prominent. Based on this, multi-point forming came into being. The basic idea is to discretize the traditional overall mold into a series of regularly arranged, height-adjustable basic body punches, and use the envelope surface of the punches as the forming surface to realize the three-dimensional forming of the plate under the control of the computer system. Compared with the overall mold, the multi-point forming equipment has the advantages of convenient shape adjustment and stro...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a multi-point swing head press forming method for forming three-dimensional curved surfaces of plates, which solves the problems of uneven stress distribution, wrinkling and local bending effects in the forming process of three-dimensional curved surfaces of plates in the prior art. question

Images