CAJ | 학술논문

五轴加工中由于旋转运动的影响,会产生非线性误差.RTCP(绕刀具中心点旋转)功能可使数控系统自动对旋转轴的运动进行实时线性补偿,从而保证插补点始终位于编程轨迹上.在深入分析双转台五坐标机床运动原理的基础上,介绍了一种集成RTCP功能的插补算法,并在MATLAB中做了仿真计算.计算结果表明该算法可以有效减小非线性误差.
오축가공중유우선전운동적영향,회산생비선성오차.RTCP(요도구중심점선전)공능가사수공계통자동대선전축적운동진행실시선성보상,종이보증삽보점시종위우편정궤적상.재심입분석쌍전태오좌표궤상운동원리적기출상,개소료일충집성RTCP공능적삽보산법,병재MATLAB중주료방진계산.계산결과표명해산법가이유효감소비선성오차.
Because of the rotate kinematics, the machining of 5-axis brings up the non-linear error. The RTCP (Rotation Tool Center Point) function can always make the interpolated point on the programming track by a real-time linear compensation of CNC system for motion of the rotary axes. Based on detailed analysis of the kinematics principle of 5-axis machine with dual rotary tables, a new design of interpolated algorithm integrated with RTCP function is presented which is simulated in MATLAB, and the result indicates that the algorithm can reduce the non-linear error effectively.