Study on the Computing Method of Cutter Path for Improving the Accuracy of Machine Tools

摘要

The geometric error is the important aspect of affecting the process accuracy of NC machine. In order to improve the machining accuracy, the article gives a new method to compute the cutter path by making use of the error model of MAKINO based on multi-body theory. By comparing the errors which is not divided with the errors that is divided, the study shows that dividing the errors into different regions is an effective method that can improve the accuracy of machine tools. Combing the new method and the error compensation based on multi-body theory, the error partition can be easily used in the compensation of machine tools by modifying the G code.