Abstract: The methods of identifying geometric error parameters for NC
machine tools are introduced. According to analyzing and
comparing the different methods, a new method —displacement
method with 9 lines is developed based on the theories of the
movement errors of multibody system (MBS). A lot of experiments
are also made to obtain 21 terms geometric error parameters by
using the error identification software based on the new method.
Key words: NC
machine tools Geometric error Parameter identification Multibody
system
*
This project
is supported by National Advanced Research Foundation (No.PD9521910) and National
Natural Science Foundation of China (No.E059905019). Manuscript received
on October 9, 2000; revised manuscript November 12, 2000
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