基于虚拟样机的贴片机动态精度分析  

Dynamic-precision Analysis of a Placement Machine Based on Virtual Prototype

作　　者：肖永山[1] 刘少军[1] 宋福民 

机构地区：[1]中南大学,长沙410083 [2]广州羊城科技实业有限公司,广州510520

出　　处：《中国机械工程》2008年第17期2073-2076,共4页China Mechanical Engineering

基　　金：国家火炬计划资助项目(2003EB041301)

摘　　要：应用多体动力学方法模拟贴片机系统动态过程,仿真"测量"其误差值。根据贴片机的结构形式,建立贴片机的数学模型和虚拟样机模型。用考虑结合部影响的刚柔耦合模型模拟实际系统,而以多刚体模型作为理想系统,通过仿真得到贴片机的动态误差。仿真结果表明贴片机系统的动态精度能够被控制在许可范围内。采用激光干涉仪对仿真分析结果进行试验验证,试验结果与仿真结果吻合较好,验证了该方法的正确性。The mounting process of a placement machine was simulated by the multi--body dynamics method. The dynamic error was obtained based on simulation. Based on the mechanical structure, the mathematical model and the virtual prototyping model of the placement machine were built. The rigid--flexible coupling model including the joints was used to simulate the actual system, and the multi--rigid--body model was used as the ideal system. The results show that the precision is controlled within permissive range. Finally, the experiments were made to validate the simulated resuits by laser interferometer.

关 键 词：贴片机 动态精度 虚拟样机 试验 

分 类 号：TN305[电子电信—物理电子学] TN405