Design method of blade cover plate part composite forming die

Abstract

According to the design method of the blade cover plate part composite forming die, in the bending forming process of a part, extrusion forming of two convex hulls on the side wall is completed at the same time, a lateral extrusion mechanism is adopted, and meanwhile the side wall of a bending forming female die is guided by an extrusion convex hull male die; the spring mechanism is used for enabling the side wall extrusion convex bag male die to smoothly restore to the original position after extrusion is completed, the reset action is completed, the limiting mechanism is used for achieving accurate reset, it is ensured that clamping does not occur, and finally composite forming is completed. The convex hull extrusion male die is fixed to a side pressing block, the side pressing block drives the convex hull extrusion male die to horizontally move inwards, extrusion is formed between the convex hull extrusion male die and the convex-concave die, convex hull extrusion forming is completed, the convex-concave die ascends and restores to the original position, and one-time machining forming of the part is completed. The method has the advantages that the punching machine completes one-time punching stroke, qualified parts are machined, one-time punching forming is achieved, side wall convex hull extrusion forming is completed at the same time, the machining quality is stable and reliable, and the part manufacturing precision is effectively improved.

Description

technical field [0001] The invention relates to the field of extrusion molding technology, in particular to a design method of a composite molding die for blade cover plate parts. Background technique [0002] Blade cover parts are used as parts on the stator blades of aero-engines. The conventional processing route of this part is bending forming-extrusion side wall convex hull. The shape retention ability of the lower parts is poor, and the positioning is not accurate during the secondary extrusion side wall convex hull forming process, resulting in poor processing consistency of the parts, which seriously affects the combined processing of the next level of components, and the two molds are formed, and the processing efficiency is low. Contents of the invention [0003] The purpose of the present invention is to solve the problem of poor processing accuracy of the side wall extrusion convex hull of the part. Only by realizing the bending forming of the part and the extr...

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Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of poor processing accuracy of the side wall extrusion convex hull of the part. Only by realizing the bending forming of the part and the extrusion forming of the side wall convex hull on a set of molds can the forming accuracy of the part be improved and the processing efficiency of the part can be improved at the same time , especially provides a design method for compound forming mold of blade cover plate parts

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