Forming and positioning method and device for plate piece

Abstract

The invention discloses a forming and positioning method for a plate piece. The forming and positioning method for the plate piece is used for forming the plate piece to be stretched, and the plate piece to be stretched comprises three pre-forming horizontal parts and two pre-forming vertical parts; the forming positioning method comprises the following steps that a first profiling supporting unit can move towards the to-be-stretched plate piece in the first direction, so that a first supporting face of the first profiling supporting unit abuts against the pre-forming horizontal part on the outer side; the first supporting face can push the pre-forming horizontal part on the outer side to cross the pre-forming horizontal part on the inner side in the first direction and then abut against a second profiling supporting unit; a second profiling face can guide metal flow of the pre-forming horizontal part on the outer side in the first direction in the stretching process. The forming and positioning method for the plate piece at least has the following advantages that profiling units are arranged, on the basis that a stress face is raised, the metal flow direction of the needed face on the outer side of the plate piece is limited at the same time, and the phenomena of cracking and wrinkling can be effectively avoided.

Description

technical field [0001] The invention relates to the technical field of product forming, in particular to a forming and positioning method and device for plate parts. Background technique [0002] The statements in this section only provide background information related to the present disclosure and may not constitute prior art. [0003] Die stretch molding is one of the main methods of product molding at present. Due to the unevenness of the product surface, it is necessary to consider the phenomenon of product cracking and surface wrinkling during the molding process. For example, a product in the shape of "几" is stretched and formed using the existing technology. The side wall of the product located on the inner side of the mold is limited due to the metal fluidity. If the force-bearing surface is unreasonably selected, the inner wall of the product will crack; but also Since the metal fluidity of the sidewall of the product on the outside of the mold is not restricted, ...

AI Technical Summary

Problems solved by technology

For example, a product in the shape of "几" is stretched and formed using the existing technology. The side wall of the product located on the inner side of the mold is limited due to the metal fluidity. If the force-bearing surface is unreasonably selected, the inner wall of the product will crack; but also Since the metal fluidity of the sidewall of the product on the outside of the mold is not restricted, it will cause wrinkling on the required surface on the outside

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