Automatic printing method of three-dimensional pattern on vehicle body surface

A three-dimensional pattern and inkjet technology, which is applied in the field of personalized body decoration and special vehicle camouflage inkjet printing, to achieve the effect of realistic pattern, uniform printing and simple principle.

Active Publication Date: 2014-10-22
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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.

Method used

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  • Automatic printing method of three-dimensional pattern on vehicle body surface
  • Automatic printing method of three-dimensional pattern on vehicle body surface
  • Automatic printing method of three-dimensional pattern on vehicle body surface

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Experimental program
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Embodiment Construction

[0024] The specific implementation of the present invention is described in detail with reference to the accompanying drawings and implementation steps. The schematic diagram of the inkjet system is shown in figure 1 shown. The present invention is to generate a motion trajectory capable of driving an inkjet robot for inkjet painting. The flow process of the whole method is as follows: figure 2 shown. The specific implementation process is as follows:

[0025] 1. First, establish the 3D CAD model of the body parts in CAD design software such as UG, CATIA, etc. as the driving model of the entire inkjet system; use the data output function of the CAD design software to output the parametric CAD model as a triangular mesh model, And save it in STL format, such as image 3 shown.

[0026] 2. By simulating the inverse process of the stamping forming of the body panel, the three-dimensional body surface is flattened onto a two-dimensional plane; the basic idea of ​​the method ...

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PUM

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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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B05D5/06G06F17/50
CPCB41J3/4073
Inventor 徐金亭侯文彬汪顺可
Owner DALIAN UNIV OF TECH
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