Tailor-welded blank roll bending formation device and method thereof

Abstract

The invention relates to a tailor-welded blank roll bending formation device and a method thereof, belonging to the roll bending formation technology and equipment field. The tailor-welded blank rollbending formation device comprises before-welding upper and lower locating rollers, before-welding left and right locating rollers, after-welding welding device, after-welding left and right locatingrollers, after-welding upper and lower locating rollers and a formation roller bank. By adopting the device, two or more than blanks with different thickness, performance, material and surface coatingare welded together by the before-welding upper and lower locating rollers, the before-welding left and right locating rollers and the welding device, and then carry out roller bending formation through the after-welding left and right locating rollers, after-welding upper and lower locating rollers and the formation roller bank. Compared with the existing punching technology, the device can continuously produce tailor-welded blanks with any cross section in a high-efficiency and high-quality way.

Description

technical field [0001] The invention relates to the field of roll forming technology and equipment, in particular to a tailor welded blank roll forming method and a device thereof, which are used for producing tailor welded blank profiles with arbitrary cross-sections. Background technique [0002] In recent years, due to the consideration of environmental protection, energy, manufacturing cost reduction and safety issues, automobile lightweight has become the main goal of the development of domestic and foreign automobile industries. In the process of realizing the lightweight of automobiles, tailor-welded blanks are widely used in the field of automobile manufacturing. So far, the processing of tailor-welded blanks generally adopts stamping forming. [0003] However, there are problems such as cracking, wrinkling, weld seam movement and springback in the stamping process of tailor-welded blanks, which affect the processing quality. Moreover, the manufacturing cost of sta...

AI Technical Summary

Problems solved by technology

[0003] However, there are problems such as cracking, wrinkling, weld seam movement and springback in the stamping process of tailor-welded blanks, which affect the processing quality

Moreover, the manufacturing cost of stamping dies is high, the manufacturing cycle is long, and the product specifications and varieties that can be produced are limited. These problems are a big obstacle for enterprises to develop new products and compete for the market.

In addition, there is still a major disadvantage in the stamping of tailor-welded blanks: there is an offline time when the punch is raised during the stamping production process, and the production is not continuous and efficient.

However, this technical solution cannot solve the problems of plate springback and insufficient continuous production in the stamping forming of tailor-welded blanks

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