视觉全自动锡膏印刷机纠偏平台研究

摘要

Based on the 3-DOF parallel mechanism model, a positioning table model of a kind of full automatic vision solder printer was presented. The structures and principles of vision and table system are presented, an axis transforming system of the table model was analysed. Second, a method of eliminating positioning deflection was provided, the backward solution of positioning table was discussed and a kinematic calibration based on the experiment results to increase the accuracy of the positioning system was made. The research shows that the solution to the precise positioning table was effective and prospective results is accomplished.%提出一种基于平面3自由度PRP并联机构的纠偏平台模型.从印刷机及视觉系统的工作原理出发,分析了该平台模型的坐标转换系统,提出了定位偏差消除方法.通过逆运动学分析,给出了平台驱动量的求解方法.应用基于理论分析模型的实验修正方法对平台传递函数矩阵进行优化设计.实验结果表明:设计的纠偏平台模型正确,平台的定位精度提高.