Accuracy Enhancement of Alignment for Five-Axis CNC Machine Tools through Touch Trigger Probes
The random errors exist in measuring with touch trigger probe. These errors are directly introduced into workpiece coordinate system with conventional alignment method. An enhanced measuring method is proposed in this paper to improve the accuracy of alignment for five-axis CNC machine tools. By using the method of least square, an error reference frame is constructed, and the relationship between the alignment parameters and the error reference frame is derived. An example of aircraft structural parts is presented to validate the presented method.
S. Bao et al., "Accuracy Enhancement of Alignment for Five-Axis CNC Machine Tools through Touch Trigger Probes", Advanced Materials Research, Vol. 381, pp. 11-15, 2012