Analysis and Compensation Following Error of Feed drive in CNC

摘要：

In CNC machining, the constant following error was caused by the uniform motion of feed drive, which could induced contour error in the multi-axis movement, and the contour error would affect machining accuracy. In this paper, the produce principle of following error is analyzed, as well as the influences of following error on contour of linear and circular interpolation. The following error was compensated by velocity feedforward controller, and a new method for identifying coefficient of velocity feedforward controller is presented, based on the actual observed values of following error. The following error was eliminated after compensating with the proposed method.

关键词： feed drive following error contour error velocity feedforward identify coefficient

作者: Xianjun Sheng Kexin Wang Renke Kang Yongqi Wang

作者单位: Dept. of Electrical and Electronics Engineering, Dalian University of Technology,Dalian 116024, Chin School of Mechanical Engineering Dalian University of Technology, Dalian, Liaoning 116024, P. R. Chi

会议类型: 国际会议

会议名称: 2010 International Conference on Advanced Mechanical Engineering(2010年先进机械工程国际学术会议 AME 2010)

会议地点: 洛阳

会议语种:英文

页码: 591-597

在线出版日期: 2010-09-04（万方平台首次上网日期，不代表论文的发表时间）