关键词: 贴片机;动态精度;虚拟样机;试验

Abstract:

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 results by laser interferometer. 

Key words: placement machine;dynamic precision;virtual prototype;experiment