模切机主切机构运动精度仿真研究  

Simulation on kinematic accuracy for mould-cut main mechanism

作　　者：王西珍[1] 史利花 

机构地区：[1]西安工程大学机电学院,陕西西安710048 [2]新机创新机械有限公司,河南新乡453700

出　　处：《机械设计》2015年第7期97-100,共4页Journal of Machine Design

基　　金：西安工程大学博士科研启动基金资助项目(BS1130)

摘　　要：从多体系统动力学理论的角度,构建了模切机主切机构各部件之间的拓扑结构和约束关系,建立主切机构多刚体及柔性多体动力学模型;综合考虑杆长误差及零部件弹性变形对机构运动精度的影响,对主切机构的运动精度进行仿真研究,分析了杆长误差等因素对输出精度的影响程度,为提高模切机主切机构输出精度提供了依据,并为空间并联机构运动精度的研究提供了一条简捷的途径。The topological structure and restriction relation among parts of mould-cut main mechanism were constructed based on the multi-body dynamics principle. Multi-rigid-body and multi-flexible-body models were also built. And the kinematic accuracy simulation of the main-cut mechanism was carried out and influence of the bar-length error on the output accuracy was discussed in detail which provided a base for improving the kinematic accuracy of the mould-cut main mechanism and a simple way for the kinematic accuracy research of parallel spatial mechanism.

关 键 词：模切机 主切机构 多体系统 运动精度 

分 类 号：TH112.1[机械工程—机械设计及理论]