Method for automatically spray painting three-dimensional patterns on vehicle body surface

Abstract

The invention discloses a method for automatically spray painting three-dimensional patterns on a vehicle body surface, and belongs to the field of vehicle digital design and manufacturing. The method for automatically spray painting the three-dimensional patterns on the vehicle body surface includes the steps of setting up a vehicle outer covering piece model through three-dimensional design software, dispersing the vehicle outer covering piece model into a triangular mesh model, thereby setting up the mapping relation between the triangular mesh model and a planar parameter region, inversely mapping points, corresponding to pattern pixel points, in the planar parameter region onto a vehicle body three-dimensional model based on the mapping relation, setting up the corresponding relation between the pattern pixel points and vehicle body three-dimensional points, storing color information of pixels, generating spray paint paths on the vehicle body three-dimensional model, adjusting the spray paint colors of the patterns according to the pixel color information corresponding to the path points, and then completing the process of automatically spray painting the three-dimensional patterns on the vehicle body surface by driving a spray painting robot. Various individualized patterns are automatically spray painted on the vehicle body surface under the control of a computer according to the spray painting paths generated through the method, and the principle is simple, the spray painting is even, the patterns are vivid, and the pattern spray painting efficiency is effectively improved.

Description

technical field [0001] The invention relates to an automatic printing method for three-dimensional patterns on the surface of a vehicle body, which belongs to the field of vehicle digital design and manufacture, and is especially suitable for special vehicle camouflage printing, vehicle body advertisement production, personalized vehicle body decoration and the like. technical background [0002] With the rapid development of production, the automobile industry has become an important pillar industry of my country's national economy. Various forms of spray-painted patterns on the surface of the body have a wide range of potential applications in special vehicle camouflage painting, body advertising production, and personalized body decoration. There are two common ways to generate car body patterns. One is to paste plastic or paper patterns directly on the body surface. However, affected by the curvature of the body surface, the pattern stickers are easy to wrinkle during the...

AI Technical Summary

Problems solved by technology

So far, there is no automatic inkjet method for the three-dimensional pattern on the surface of the car body directly driven by the design pattern.

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