PCB数控钻床多体系统动力学的建模与仿真  

Modeling and Simulation of a PCB NC Drilling Machine Based on Multi-Body System Dynamics

作　　者：吴俊刚[1] 张力[1] 王英章[1] 徐宗俊[1] 李坚[1] 

机构地区：[1]重庆大学机械工程学院,重庆400030

出　　处：《组合机床与自动化加工技术》2005年第3期6-8,共3页Modular Machine Tool & Automatic Manufacturing Technique

基　　金：重庆市信息产业发展基金 (2 0 0 2 0 30 0 3) ;重庆市重点新产品基金 (2 0 0 2 - 1 2 3) ;重庆大学基础及应用基础研究基金 (2 0 0 3 - 2 7)

摘　　要：实现高速高精度的微细孔及其深孔加工是PCB数控钻床发展的主攻目标 ,国内现有PCB数控钻床应加强对高速条件下钻床机械动态特性的控制 ,以满足高速和高精度条件下微细孔及其深孔加工要求。文中从机械多体系统动力学仿真的角度 ,研究了SKZ4A型PCB数控钻床的机械动态特性。论文给出SKZ4A型高速PCB数控钻床多体系统动力学的建模方法 ,实现其机械系统动力学性能的模拟和仿真分析 ,有效地改善了机床在高速条件下的机械动态性能 ,提高了SKZ4A型PCB数控钻床在高速和高精度条件下的微细孔机械加工能力。Drilling of micro-hole and deep-hole at higher speed and with higher precision is the main effort for PCB drilling. Due to lack of favorable machine dynamics for PCB drilling, it is very difficult for ordinary NC drilling machines to drill micro-hole and deep-hole at higher speed and with higher precision. Mechanical dynamic characteristics of the SKZ4A type PCB drilling machine are researched into by taking the approach of the multi-body system dynamics. The modeling methods of multi-body system dynamics for the high-speed PCB drilling machine are presented, and the dynamic simulation and analysis of the high-speed PCB drilling machine are carried out, and the dynamic response characteristics of the machine are fully understood and effectively up-rated. It is verified that the performance of the machine for more accurate and higher-speed drilling of micro hole is significantly improved.

关 键 词：PCB钻孔 多体动力学 建模 数值仿真 

分 类 号：TG659[金属学及工艺—金属切削加工及机床]