Die for achieving continuous local loading forming of large-size rib plate and forming method of die

Abstract

The invention provides a die for achieving continuous local loading forming of a large-size rib plate and a forming method of the die, and belongs to the field of plastic processing. The continuous local loading die comprises an upper male die connected with an upper working platform of a press, and a lower die assembly connected with a lower working platform of an extruder. The upper male die isconnected with an upper working table of the press through a fastening bolt. The lower die assembly comprises a lower die body, a lower die base with a lead screw and sliding groove structure, and a heating rod used for heating the die. The heating rod is arranged in a heating rod groove in the lower die body, and the lower die body is matched with the lower die base through a dovetail groove andconnected with the lower die base through a lead screw structure on the lower die base. Die cavity design is carried out according to the structure of a formed part, the continuous local loading combined die is used, a lower die cavity is moved in the loading process, the assembling relation of an upper die body and the lower die body is changed, and forming of the large-size rib plate is achievedthrough continuous local loading of different loading areas. The forming load can be effectively reduced, and the problem that complex large-size rib plate forming is limited by the area of the working platform of the extruder and the load of the press is solved.

Description

technical field [0001] The invention relates to the technical field of metal plastic processing technology and forming, and specifically relates to a continuous local loading forming method for large-scale rib plate parts. Background technique [0002] Large ribbed parts are structural parts with broad application prospects in the field of aerospace. At present, scholars at home and abroad have carried out extensive research on large ribbed parts. The structure is large and integrated, the shape is complex, the wall thickness is thinner, the shape is more precise, and the extreme combination of large and small sizes is a lightweight characteristic structure that ensures high reliability and efficient functions. Compared with traditional assembly and riveting components, large integral structural parts reduce fastening connection and assembly, avoid possible structural damage caused by assembly connection, effectively reduce assembly weight, and greatly improve its reliabilit...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the invention is to solve the problem that the forming of large ribbed parts is limited by the working surface area of ​​the extruder and the load of the press, and realize the production of large ribbed parts by small equipment

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