Development of Computer Aided System for Error Assessoment for Multi-axis Machine Tools using the Double Ball Bar

기구볼바를 이용한 공작기계의 오차평가 시스템 개발

This paper presents an useful technique for assessing the volumetric error in multi_axis machine tools using the kinematic double ball bar and 3 dimensional spherical contouring. The developed system proposes the 3 dimensional spherical contour for the error analysis. The developed system input the measured radial data, analysing the volumetric errors such as positional, strightness, angle, and squareness errors, etc. The developed system has been tested in a practical machine tool, and showed high