Two-pass automatic-spraying track optimization method of complex curved surfaces

Abstract

The invention relates to a two-pass automatic-spraying track optimization method of complex curved surfaces. On the basis that first-pass spaying track parameters are obtained, to guarantee second-pass spraying uniformity, changes of the spraying height of a spraying gun are considered, and three second-pass spraying-gun spraying models are built on this account. Variance minimality of an ideal coating thickness and an actual coating thickness is made as an optimization objective, second-pass spraying-gun spraying track parameters are solved and obtained, and finally a spraying-gun spraying track is generated according to a spraying pane obtained through fragmentation of the complex curved surfaces. Therefore, coating uniformity of the complex curved surfaces in the two-pass spraying process is promoted further, and spraying quality of the surfaces of products is improved.

Description

technical field [0001] The invention relates to a surface spraying track optimization method, in particular to a complex curved surface two-pass automatic spraying track optimization method. Background technique [0002] Spraying robot is a very important advanced automatic coating equipment in the field of painting, widely used in fields such as automobiles, shipbuilding, molds and aerospace. For products and parts with coating on the surface, in addition to the size parameters and mechanical properties of the body are important indicators for evaluating the quality, the uniformity of the coating is also an important indicator for evaluating the quality of a product. For example, for the two-pass spraying process of automobile topcoat, through the slice processing of complex curved surfaces and the optimization of two-pass spraying trajectories, a spraying trajectory with the best coating uniformity on complex curved surfaces is designed under the two-pass spraying process ...

AI Technical Summary

Problems solved by technology

At present, the optimization of spraying trajectory for complex curved surfaces at home and abroad is based on the single-pass spraying process, such as the single-pass spraying trajectory for complex curved surfaces, irregular planes and irregular polyhedrons provided by publication numbers CN101239346, CN101367076A and CN102500498A respectively However, in the actual spraying process, in order to meet a certain spraying requirement, the process method of two-pass spraying is often used. If the trajectory optimization method of single-pass spraying is simply superimposed on the two-pass spraying process, the coating cannot be obtained. The two-pass spraying trajectory with the best quality, there is still room for improvement in the automatic spraying trajectory optimization method for complex curved surfaces in the two-pass spraying process

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