摘要
在高精密轮廓加工中,线性轮廓误差控制精度是非常重要的指标,它决定了最终产品的加工精度。在建立基于齿隙的线性轮廓误差模型的基础上,利用众所周知的交叉耦合控制,提出了一种新的独立轮廓误差控制(Independent Contour Error Control,ICEC)策略,即驱动轴之间不需要任何交叉进给信号就能够减少线性轮廓误差。仿真的结果表明所提出的控制方案是有效的,在线性和圆形轮廓的双轴驱动系统上也得到证明,能够明显地提高轮廓误差控制精度。
For high precision contour machining,linear contour errors precision is a very important factor,and decide the precision of the end product.On the basis of analysis of linear contour errors model.The new strategy of independent contour error control was presented,which utilizes the equations of the well-known cross-coupling controller,is shown to diminish a linear contour error without using any cross-feeding signals between the driving axes.The simulation results show that the proposed control scheme is effective and the better effect of the contour tracking is obtained on the system of having two drive axes.As a result,the contour machining precision is improved greatly.
出处
《机械》
2010年第8期13-14,20,共3页
Machinery
基金
广东省自然科学基金资助项目(8151063301000004)
