摘要
为了研究数控转塔冲床机身的振动情况,以江苏亚威机床股份有限公司的HPR-3048数控转塔冲床为例,对机床机身进行有限元模态分析和实验模态分析,建立准确的有限元模型,同时通过塑性成形软件DEFORM计算板料冲孔时模具冲裁力的时间历程曲线,并以此作为动态载荷,通过模态叠加法计算机床的动态响应,得出机身冲裁过程中的最大动应力、最大动态位移以及几个关键点动态位移的时间历程曲线和模态参与因子随时间变化的三维曲面,为减小机床的振动提供实际指导。
In order to study the frame＆#39;vibration of CNC turret punch press , it takes the HPR -3048 CNC turret punch press as an example , discusses the finite element modal analysis and experiment modal analysis of the frame, establishes an accurate finite element model .Meanwhile through the plastic forming software DEFORM , it obtains the time history curve of the die＆#39;cutting force when the punch is punching .Then taking this curve as the dynamic load and computing the dynamic response of the punch through the modal superposition method , it shows the time history curves of the maximum dynamic stress , the maximum dynamic displacement and several key nodes , and provides the 3 D surface of modal participation factor＆#39;time history , gives the practical guidance for reducing the vibration of the punch .
出处
《机械设计与制造工程》
2014年第7期29-34,共6页
Machine Design and Manufacturing Engineering
关键词
数控转塔冲床
有限元模态分析
实验模态分析
冲裁工艺
瞬态分析
CNC Turret Punch Press
Finite Element Modal Analysis
Experiment Modal Analysis
Punching Processes
Transient Analysis
