机床与液压
機床與液壓
궤상여액압
MACHINE TOOL & HYDRAULICS
2014年
7期
103-106
,共4页
数控机床%动态轨迹误差%仿真%优化
數控機床%動態軌跡誤差%倣真%優化
수공궤상%동태궤적오차%방진%우화
NC machine tools%Dynamic contouring error%Simulation%Optimization
在介绍数控机床加工轨迹运动控制原理的基础上，对数控机床动态轨迹误差进行了仿真研究，得出数控机床动态轨迹误差与拟加工曲线的曲率和机床进给速度相关的结论。在待加工的工件几何曲线曲率已定情况下，提出了变进给速度的数控机床动态轨迹误差优化策略，仿真结果表明：该控制策略能够有效地减少机床动态轨迹误差量，提高相关轨迹曲线的加工精度。
在介紹數控機床加工軌跡運動控製原理的基礎上，對數控機床動態軌跡誤差進行瞭倣真研究，得齣數控機床動態軌跡誤差與擬加工麯線的麯率和機床進給速度相關的結論。在待加工的工件幾何麯線麯率已定情況下，提齣瞭變進給速度的數控機床動態軌跡誤差優化策略，倣真結果錶明：該控製策略能夠有效地減少機床動態軌跡誤差量，提高相關軌跡麯線的加工精度。
재개소수공궤상가공궤적운동공제원리적기출상，대수공궤상동태궤적오차진행료방진연구，득출수공궤상동태궤적오차여의가공곡선적곡솔화궤상진급속도상관적결론。재대가공적공건궤하곡선곡솔이정정황하，제출료변진급속도적수공궤상동태궤적오차우화책략，방진결과표명：해공제책략능구유효지감소궤상동태궤적오차량，제고상관궤적곡선적가공정도。
Based on the introduction of control principle about machining contour of Numerical Control (NC)machine tool,the machining contouring error was investigated with simulation,and a conclusion was gotten that the contouring error was related to the contouring curvature in planned machining and the feed speed of machine tool.In the case that the geometric contouring curvature of workpiece waiting for machining set already,a variable feed speed strategy to optimize the dynamic contouring error of NC machine tool was proposed.The simulation result shows that this control strategy can reduce the amount of contouring error,and promote the machi-ning accuracy of the contour effectively.
