Study on the error distribution and key parameters for a desktop multi-axis micro milling machine tool

Abstract

Desktop micro milling machine tools are gaining more and more importance following the miniature tendency in various fields. More and more commercially available integral motion components adapts to the quick assembly of desktop machine tools. The key point to fulfill specific requirements of desktop micro milling machine tools is to know their accuracy capabilities in the design stage for the selection of appropriate motion components. Aiming at the point, full-error modeling is derived to analyze position error distributions in the whole workspace. According to the error models, key parameters affecting the final accuracy of a desktop five-axis micro milling machine tool are identified and optimized. It shows that both single-axis errors and structural parameters are very important in contributing to the final accuracy.