Outer plate part mold surface modeling method

Abstract

The invention provides an outer plate part mold surface modeling method. The mold surface modeling method is applied to a drawing process or a flanging process, and is applicable to the surface A of an outer plate part; the surface A of the outer plate part is boundary rounded corners or a part curved surface without the boundary rounded corners. The modeling method comprises the steps of modelingadjustment and material pressing control. Modeling adjustment specifically comprises the following steps that S1, the positions of areas liable to be recessed of the surface of the surface A of the outer plate part and recess values are determined; and S2, reverse compensation is conducted on the areas liable to be recessed, after reverse compensation, the obtained surface A of the outer plate part meets the requirements for set product surfaces, and the requirements for the surface A are met. During application of the modeling method, the effect that surface defects of the outer plate part finally obtained are few is ensured, the on-site debugging work time of technicians is shortened, the labor intensity is relieved, and the technical requirements for the technicians are lowered.

Description

technical field [0001] The invention relates to the stamping field of automobile outer panel parts, in particular to a method for molding the mold surface of an outer panel part. Background technique [0002] The competition in the automobile market is becoming increasingly fierce, and users have higher and higher requirements for the appearance quality and individualization of the automobile body. Nowadays, more and more models are pursuing clear and beautiful appearance lines. The outer panels include the outer side of the automobile, fenders, front and rear doors. The parts that can be seen directly on the car, such as the outer panel and the front and rear cover outer panels, have complex curved surfaces and high requirements for size and surface quality. Pimples and small convex bumps on the surface of parts are the most common surface defects. Stamping of outer panels Afterwards, the parts are beaten with oilstone, and there is no oilstone in the concave area and the o...

AI Technical Summary

Problems solved by technology

[0002] The competition in the automobile market is becoming increasingly fierce, and users have higher and higher requirements for the appearance quality and individualization of the automobile body. Nowadays, more and more models are pursuing clear and beautiful appearance lines. The outer panels include the outer side of the automobile, fenders, front and rear doors. The parts that can be seen directly on the car, such as the outer panel and the front and rear cover outer panels, have complex curved surfaces and high requirements for size and surface quality. Pimples and small convex bumps on the surface of parts are the most common surface defects. Stamping of outer panels Afterwards, the parts are beaten with oilstone, and there is no oilstone in the concave area and the oilstone in the convex area is shiny. These defects directly affect the appearance of the parts after painting. Surface defects not only have a great impact on the appearance quality of the car body, but even damage the surface of the vehicle. Rigidity, while traditional on-site debugging is used to solve surface problems, the on-site debugging work cycle is long, the technical requirements for technicians are also high, and the improvement effect is not stable

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