航空精密制造技术
航空精密製造技術
항공정밀제조기술
AVIATION PRECISION MANUFACTURING TECHNOLOGY
2014年
6期
5-10
,共6页
刘红军%张爱国%赵吉宾%伞雷
劉紅軍%張愛國%趙吉賓%傘雷
류홍군%장애국%조길빈%산뢰
刀位优化%复杂曲面%非线性误差%五轴数控加工
刀位優化%複雜麯麵%非線性誤差%五軸數控加工
도위우화%복잡곡면%비선성오차%오축수공가공
tool position optimization%complex surface%non-linear error%five-axis CNC machining
针对复杂曲面五轴数控加工的刀具位置优化进行了研究并提出了一种基于五轴数控加工中非线性误差的分析和补偿的刀具位置优化方法。首先,简述了曲面加工中所用的平底圆角铣刀刀具位置的计算方法;然后,对刀具位置进行非线性误差分析并建立非线性误差模型,并基于这个模型得出插补段的最大非线性误差;接着通过对非线性误差模型中的非线性误差进行检测计算和补偿,最终得到满足加工精度要求的刀具位置。最后对该方法进行了模拟仿真。模拟的结果显示非线性误差的补偿对复杂曲面数控切削成形的几何精度有很重要的影响。
針對複雜麯麵五軸數控加工的刀具位置優化進行瞭研究併提齣瞭一種基于五軸數控加工中非線性誤差的分析和補償的刀具位置優化方法。首先,簡述瞭麯麵加工中所用的平底圓角鐉刀刀具位置的計算方法;然後,對刀具位置進行非線性誤差分析併建立非線性誤差模型,併基于這箇模型得齣插補段的最大非線性誤差;接著通過對非線性誤差模型中的非線性誤差進行檢測計算和補償,最終得到滿足加工精度要求的刀具位置。最後對該方法進行瞭模擬倣真。模擬的結果顯示非線性誤差的補償對複雜麯麵數控切削成形的幾何精度有很重要的影響。
침대복잡곡면오축수공가공적도구위치우화진행료연구병제출료일충기우오축수공가공중비선성오차적분석화보상적도구위치우화방법。수선,간술료곡면가공중소용적평저원각선도도구위치적계산방법;연후,대도구위치진행비선성오차분석병건립비선성오차모형,병기우저개모형득출삽보단적최대비선성오차;접착통과대비선성오차모형중적비선성오차진행검측계산화보상,최종득도만족가공정도요구적도구위치。최후대해방법진행료모의방진。모의적결과현시비선성오차적보상대복잡곡면수공절삭성형적궤하정도유흔중요적영향。
Aiming at the tool position optimization in five-axis CNC complex surfaces machining, a method to optimize tool position based on analysis and compensation of non-linear error was presented. the tool position calculation method of flat round cutter was described. The non-linear error caused by the change of tool axis vector was analyzed. The non-linear error model was established to get the maximum non-linear error of Interpolation segment. The tool position that meets the machining accuracy was obtained by the detection and compensation calculation to the non-linear error. The method above was simulated by computer. The computer simulation result showed that the nonlinear error compensation for complex surface had influence on geometric accuracy in CNC machining.