铜箔切割机切刀机构的运动分析与研究

Research and Motion Analysis of Cutting Blade Mechanism of Copper Foil Shearing Machine

提高铜箔的切割质量一直是PCB生产的难题,为研发具有国际竞争力的铜箔切割机,以美国Rosenthal公司设计的剪刀式铜箔切割机的切刀机构为研究对象,详细阐述了切刀机构的运动原理,分析计算了机构自由度。利用空间机构运动学和数值计算的方法对切刀机构进行运动分析,推导出了切刀机构切割点运动参数的解析关系式。通过对铜箔幅宽为1 500 mm的切割机进行数值试验和仿真,提出了基于高速、高质量切割的切刀机构的运动特征,得到相关运动曲线及影响机构性能的易控参数。研究内容为铜箔切割机切刀机构设计参数的优化提供了依据。

In order to determine the motor drive motion of intermittent chain transmission,the recursive modeling approach based on relative coordinates in Recur Dyn is studied.Combining with permanent magnet synchronous motor model,the dynamics model of intermittent chain transmission system and motor model are established in Recur Dyn and Matlab / Simulink separately,and the correctness of the two models are verified.Using Recur Dyn / control module to combine with both,mechatronic simulation is carried out under three kinematic law of intermittent motion.The simulation results show that,compared to modification constant velocity（ MCV） kinematic law,modification sine（ MS） and modification trapezoid（ MT） kinematic law for intermittent drive is better,and MT kinematic law can give motor higher torque store margin and lower overload requirements.