开式数控冲模回转头压力机机身的振动

Vibration on C-frame of CNC turret punch press

从分析曲柄压力机机身所受的干扰力入手，讨论了曲柄压力机在最坏条件下机身的振动，从而获得了求其机身最大动态垂直变形、最大动态角变形和机身危险截面动应力的途径。并以数控冲模回转头压力机为例，就如何计算机身的固有频率进行了探讨，为曲柄压力机机身的动态性能设计并提高其行程次数提供了理论依据。

Analyses the disturbing force occurred in frame of crank press,Discusses vibration of frame in worst conditions and find a way to get Max. dynamic vertical deformation,Max.dynamic angular deformation and dynamic stress on dangerous cross section.By example of CNC turret punch press,discusses how to calculate its free frequency.Theoretical base is provided to dynamic property design of frame and to increase SPM of press.