Paper Title:
Analysis and Compensation Following Error of Feed Drive in CNC
  Abstract

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.

  Info
Periodical
Edited by
Zhenyu Du and Bin Liu
Pages
591-597
DOI
10.4028/www.scientific.net/AMM.26-28.591
Citation
X. J. Sheng, K. X. Wang, R. K. Kang, Y. Q. Wang, "Analysis and Compensation Following Error of Feed Drive in CNC", Applied Mechanics and Materials, Vols. 26-28, pp. 591-597, 2010
Online since
June 2010
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