A bimetallic temperature compensation plate forming method and mold

Abstract

The invention belongs to the field of mechanical manufacturing, and in particular relates to a stamping technology and a mold technology for forming a bimetallic temperature compensation sheet for aviation. The forming mold of the bimetal temperature compensation sheet of the present invention is composed of an upper die and a lower die, wherein the upper die includes a convex and concave die and an upper ejector arranged inside it, and the lower die includes a die, a punch, a lower ejector, a positioning The lower ejector is movably socketed on the punch, the die is set outside the lower ejector, and the positioning plate is installed on the surface of the die. When working, the bottom of the convex and concave dies of the upper die pushes the lower ejector of the lower die to achieve a small margin shearing of the parts, so that the cross-sectional roughness and end-face symmetry of the bimetallic temperature compensation sheet can meet the requirements of aviation use, and The process is simple, the operation is convenient, the forming efficiency is high, and the utility model has great practical application value.

Description

technical field [0001] The invention belongs to the field of mechanical manufacturing, and in particular relates to a stamping technology and a mold technology for forming a bimetallic temperature compensation sheet for aviation. Background technique [0002] The bimetallic temperature compensation sheet used in aviation is required to be able to reliably perform the temperature compensation function. The dimensional accuracy of this type of bimetallic temperature compensation sheet is average, which is IT12 grade; however, the shape and position tolerance and section roughness requirements of the inner and outer shapes are relatively high, respectively: symmetry 0.05, and section roughness Ra1.6. [0003] At present, there are two forming methods for this type of bimetallic temperature compensation sheet: [0004] The first one: first cut the bimetallic strip into a certain size of rectangular or square block; then use wire cutting to process the inner and outer shapes, an...

AI Technical Summary

Problems solved by technology

In order to obtain a qualified section, a large margin should be left for the blanking blank, so that when the fitter repairs the file, not only the efficiency is low, the labor intensity is high, but also the scrap rate is high (linear dimension and shape and position tolerance are out of tolerance)

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