非圆加工中的输入控制量离线仿真实验法  

Get the control Input of noncircular cutting by simulation

作　　者：陈志华[1] 刘新辉[1] 

机构地区：[1]国防科技大学机电工程与自动化学院,长沙410073

出　　处：《机械设计与制造》2008年第5期123-125,共3页Machinery Design & Manufacture

基　　金：国家自然科学基金资助项目(50575223)

摘　　要：在高速精密非圆加工中,伺服刀架系统的幅值衰减和相位滞后特性会产生较大的刀具轨迹跟踪误差,从而降低加工精度。以伺服刀架的传递函数为基础,借鉴了人们在非圆加工中数据修正的经验,用一个典型的例子说明如何通过仿真+实验的方法求取伺服刀架的输入控制量。将求得的输入控制量输入到伺服刀架模型中,可以达到补偿幅值衰减和相位滞后的目的,同时可以估计非圆加工的形状误差。Because of gain attenuation and phase delay of the high speed precision servo system, large tool tracking error will be produced and machining accuracy required will be lost during highspeed and fine turning of noncircular components. Based on the transfer function of the servo system ,rod the experience of human being, the method of how to get the revised control input by simulation has been proposed through an example. This revision of the control input, will greatly compensate the gain attenuation and phase delay, and the error of machined part will be decreased.

关 键 词：非圆 修正输入法 误差补偿 控制 

分 类 号：TH12[机械工程—机械设计及理论]