Paper Title:

Adaptive Compensation of Spatial Contour Error Based on Neural Networks in Three-Axis Machining

Periodical Key Engineering Materials (Volumes 392 - 394)
Main Theme Manufacturing Automation Technology
Edited by Guanglin Wang, Huifeng Wang and Jun Liu
Pages 7-12
DOI 10.4028/www.scientific.net/KEM.392-394.7
Citation F.Y. Peng et al., 2008, Key Engineering Materials, 392-394, 7
Online since October, 2008
Authors F.Y. Peng, K.S. Sun, Y. Zhou, Bin Li
Keywords Adaptive Control, Cross Coupled Control, Neural Network (NN), Spatial Contour Error
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Abstract

The spatial contour error which exists in multi-axis machine tools is believed relative with the track-lag error existing in the single axis, the set value of feed-rate and the curvature of the contour. A spatial error model is taken for presenting a vector method to calculate the contour error in three-axis machine tool and an adaptive cross coupled controller which is based on neural network is presented. The simulation results of cross coupled control in three-axis, indicate that the contour precision can be improved effectively which exists in the machine tool, and the errors influenced by the change of curvature and the set value of feed-rate can be obviously reduced.