摘要
针对凸起凹陷特征表面喷涂的涂层均匀性优化问题,提出了一种基于变位姿喷涂工艺的喷涂轨迹优化方法。研究了垂直喷涂和变位姿喷涂时凸起凹陷几何参数对涂层均匀性的影响规律,并探讨了适用垂直喷涂方法的凸起高度和凹陷深度范围;针对不适用垂直喷涂的凸起凹陷特征,提出了一种采用圆弧过渡的连续变倾角喷涂轨迹优化方法;最后,建立连续变倾角涂层厚度模型和优化目标模型以提高凸起凹陷特征表面的涂层均匀性。仿真与实验结果表明,相较于垂直喷涂方法,所提出的方法应用于凸起凹陷特征表面时,膜厚标准差降低41.06%,能满足膜厚精度要求的区域占比提高15.23%。
Aiming at the problems of optimizing coating uniformity in surface spraying involving convex and concave features,a novel spraying trajectory optimization method was proposed based on incorporated posture changes during the spraying processes.The effects of geometric parameters associated with convex and concave surfaces on coating uniformity during both vertical and variable posture spraying were studied,suitable bulge heights and depression depth ranges for the vertical spraying technique were identified.Subsequently,for convex and concave features that were incompatible with vertical spraying,a continuous variable inclination angle spraying trajectory optimization method utilizing arc transitions was introduced.Finally,a continuously variable inclination angle coating thickness model and an optimization target model were developed to enhance coating uniformity on surfaces with convex and concave features.Simulation and experimental results demonstrate that,compared to the vertical spraying method,the applications of the proposed technique to surfaces with convex and concave features result in a 41.06%reduction in the standard deviation of film thickness and a 15.23%increase in the proportion of areas meeting the required film thickness accuracy.
作者
戴尧
曾勇
赵雪雅
万俊豪
顾金彤
祝欣怡
DAI Yao;ZENG Yong;ZHAO Xueya;WAN Junhao;GU Jintong;ZHU Xinyi(School of Mechanical Engineering,Yancheng Institute of Technology,Yancheng,Jiangsu,224051)
出处
《中国机械工程》
北大核心
2025年第11期2694-2703,共10页
China Mechanical Engineering
基金
国家自然科学基金(51405418)。
关键词
喷涂机器人
变倾角喷涂
轨迹优化
凸起凹陷特征
膜厚精度
spraying robot
variable inclination angle spraying
trajectory optimization
convex and concave feature
film thickness accuracy
