中国机械工程
中國機械工程
중국궤계공정
China Mechanical Engineering
2015年
19期
2629-2632
,共4页
刀轴矢量%五轴数控加工%有向图%可行域边界%空间构造法
刀軸矢量%五軸數控加工%有嚮圖%可行域邊界%空間構造法
도축시량%오축수공가공%유향도%가행역변계%공간구조법
tool axis vector%five-axis CNC machining%digraph%feasible domain boundary%space construction method
针对球头铣刀的五轴数控加工，提出了一种基于有向图的刀轴矢量优化方法。根据刀轴矢量数据量大的特点，提出了建立刀轴矢量有向图的最小优化模型和算法。该方法能获得全局刀轴矢量变化量最小的刀轴矢量序列，将可行域边界上的刀轴矢量加入到有向图的计算中，提高了算法的计算效率。仿真分析表明，该方法优化了刀轴矢量的连续性和光顺性，对于最佳刀具姿态在可行域边界上的加工具有一定的适用性。
針對毬頭鐉刀的五軸數控加工，提齣瞭一種基于有嚮圖的刀軸矢量優化方法。根據刀軸矢量數據量大的特點，提齣瞭建立刀軸矢量有嚮圖的最小優化模型和算法。該方法能穫得全跼刀軸矢量變化量最小的刀軸矢量序列，將可行域邊界上的刀軸矢量加入到有嚮圖的計算中，提高瞭算法的計算效率。倣真分析錶明，該方法優化瞭刀軸矢量的連續性和光順性，對于最佳刀具姿態在可行域邊界上的加工具有一定的適用性。
침대구두선도적오축수공가공，제출료일충기우유향도적도축시량우화방법。근거도축시량수거량대적특점，제출료건립도축시량유향도적최소우화모형화산법。해방법능획득전국도축시량변화량최소적도축시량서렬，장가행역변계상적도축시량가입도유향도적계산중，제고료산법적계산효솔。방진분석표명，해방법우화료도축시량적련속성화광순성，대우최가도구자태재가행역변계상적가공구유일정적괄용성。
According to the five axis NC machining of ball end milling,this paper presented a new method to optimize tool axis vector based on graph.Based on the characteristics of the cutter axis vec-tor data,the minimum optimization model and algorithm of the cutter axis vector directed graph were proposed.This method can get global minimum cutter axis vector variation of cutter axis vector se-quence and improve the computational efficiency of the algorithm by using the boundary of the feasible region of cutter axis vector j oining in the directed graph calculation.Simulation and data analyses show that the proposed method improves the continuity and smoothness of cutter axis vector in a certain ex-tent,and also has certain applicability in its optimal tool posture along the boundary of the feasible re-gion.
