Dual sliding mode contouring control with high accuracy contour error estimation for five-axis CNC machine tools
Dual sliding mode contouring control with high accuracy contour error estimation for five-axis CNC machine tools
复制标题
五轴数控机床高精度轮廓误差估计的双滑模轮廓控制
DOI：
10.1016/j.ijmachtools.2016.05.007
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发表时间：
2016-09
影响因子：
14
通讯作者：
Han Ding
中科院分区：
文献类型：
--
作者：
Xiangfei Li;Huan Zhao;Xin Zhao;Han Ding
五轴联动数控机床广泛应用于复杂零件的加工制造中，轮廓误差是影响最终产品精度的关键指标。根据定义，轮廓误差是仅取决于当前实际刀具姿态和参考轨迹的几何量。轮廓控制是减小或消除轮廓误差的主要方法，本文提出了一种基于参考轨迹几何信息的五轴机床轮廓误差高精度估计方法。然后，为了避免雅可比矩阵求逆和求导的耗时计算，同时减小跟踪误差和轮廓误差，并抑制控制信号中的抖振，提出了一种双滑模轮廓控制方法。该方法将传统的PD型跟踪滑模面、由轮廓误差轴向分量组成的PD型轮廓滑模面和输入信号集成在一起，为每个驱动器分别选择对偶滑模面。实验是在一台可倾转工作台五轴联动数控机床上进行的。结果表明，该方法估计的轮廓误差非常接近真实轮廓误差，与传统的滑模控制器相比，该方法可以有效地减小轮廓误差和抖振行为。
Five-axis CNC machine tools are widely used in the manufacturing of the complex parts, and the contour error is the key indicator for the accuracy of the final product. Contour error, by definition, is a geometrical quantity solely dependent on the current actual tool pose and the reference trajectory. Contouring control is the main method to reduce or eliminate it. In this paper, based on the geometrical information of the reference trajectory, a high accuracy contour error estimation method for five-axis machine tools is proposed. Then, to avoid the time-consuming calculation of the inverse and derivative of the Jacobian matrix, to reduce tracking and contour errors simultaneously as well as suppress the chattering in the control signal, a dual sliding mode contouring control method is proposed. The dual sliding surface is selected for each drive separately, which integrates the traditional PD-type tracking sliding surface, a PD-type contouring sliding surface consisting of the axis component of the contour errors, and the input signal together. Experiments are conducted on a tilting-rotary-table type five-axis CNC machine tool. The results demonstrate that the contour errors estimated using the proposed method are very close to the true ones, and compared with the traditional sliding mode controller, the proposed method can reduce the contour error and the chattering behavior effectively.
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影响因子：
6.3
作者：
Yunjin Jung;Do-won Lee;Jung Soon Kim;H. Mok
通讯作者：
Yunjin Jung;Do-won Lee;Jung Soon Kim;H. Mok
DOI：
10.1016/j.ijmachtools.2013.09.002
发表时间：
2013-12
影响因子：
14
作者：
Jixiang Yang;Y. Altintas
通讯作者：
Jixiang Yang;Y. Altintas
DOI：
10.1016/s0890-6955(01)00003-7
发表时间：
2001-08
影响因子：
14
作者：
K. Erkorkmaz;Y. Altintas
通讯作者：
K. Erkorkmaz;Y. Altintas
DOI：
10.1115/1.1789970
发表时间：
2004-09
影响因子：
1.7
作者：
S. Yeh;P. Hsu
通讯作者：
S. Yeh;P. Hsu
DOI：
10.1016/j.ijmachtools.2006.11.008
发表时间：
2007-08
影响因子：
14
作者：
Chao-Chung Peng;Chieh-Li Chen
通讯作者：
Chao-Chung Peng;Chieh-Li Chen