Double-lateral extension forming device and forming method for irregular curved surface part

Abstract

The invention relates to a double-lateral extension forming device and forming method for an irregular curved surface part, belongs to the technical field of sheet metal machining, and solves the problems that in the prior art, an irregular complex-surface thin-wall component cannot be formed at a time, the requirement for welding is high, the machining cost of the part is high, the production period is long, and die releasing is difficult. The extension forming device comprises an upper die, a lower die and a pressing forming assembly, wherein the upper die extends and forms a to-be-formed process workpiece in a lower die cavity through the pressing forming assembly; the pressing forming assembly comprises a molded surface pressing block, a protrusion pressing male die and a plurality of first elastic components, wherein the protrusion pressing male die is assembled in a through hole of the molded surface pressing block and is fixed to the molded surface pressing block, the outer molded surface of the protrusion pressing male die is matched with the molded surface of the through hole of the molded surface pressing block, one end of each first elastic component is fixed to the molded surface pressing block, and the other end of each first elastic component is fixed to the protrusion pressing male die. By means of the device and method, double-lateral extension forming of the irregular curved surface part is achieved at one time.

Description

Technical field[0001]The present invention relates to the field of sheet metal processing, and more particularly to a bilateral extension forming apparatus and a forming method of an irregular curved part.Background technique[0002]At present, the aviation product parts are lightweight, complicated, and integrally developed, and more and more irregular complex face-walled members are increasing.[0003]The forming feature on some parts is limited by the orientation, and cannot be formed once. After the parts are split, the part is re-welded, and the shape is highly welded, and the part is not qualified, and the part is processed. Cost and production cycle.Inventive content[0004]In view of the above analysis, the present invention is intended to provide a bilateral extension forming apparatus and a forming method of irregular curved parts, at least one of the following technical problems: (1) irregular complex surface thin-walled members cannot be formed once (2) High welding requiremen...

AI Technical Summary

Problems solved by technology

[0003]The forming features on some parts are limited by the orientation and shape, so they cannot be formed at one time. The parts can only be split and formed separately, and then welded as a whole, and formed but welded separately The requirements are high, the risk of unqualified parts increases, and the processing cost and production cycle of the parts are increased at the same time

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