组合机床与自动化加工技术
組閤機床與自動化加工技術
조합궤상여자동화가공기술
MODULAR MACHINE TOOL & AUTOMATIC MANUFACTURING TECHNIQUE
2015年
4期
104-107,118
,共5页
田军锋%范素娟%左宪禹
田軍鋒%範素娟%左憲禹
전군봉%범소연%좌헌우
五轴加工%压缩平滑%刀具矢量%定向插补
五軸加工%壓縮平滑%刀具矢量%定嚮插補
오축가공%압축평활%도구시량%정향삽보
five-axis machining%compression smooth%tool posture vector%orientation interpolation
为解决五轴加工中刀具矢量变化不均匀引起减速和加速的反复发生,带来加工形状变得粗糙和加工时间变长的问题,提出一种刀具矢量压缩平滑定向插补算法。通过对指令程序进行压缩处理,可以去除刀位点和刀具矢量变化小的指令,对刀具矢量平滑处理,可以使得刀具矢量的变化与线性轴的变化一致,定向插补是对优化后的指令刀位点数据和刀具方向进行插补计算,以实现高速加工。通过仿真实验验证了该算法的有效性和可行性。
為解決五軸加工中刀具矢量變化不均勻引起減速和加速的反複髮生,帶來加工形狀變得粗糙和加工時間變長的問題,提齣一種刀具矢量壓縮平滑定嚮插補算法。通過對指令程序進行壓縮處理,可以去除刀位點和刀具矢量變化小的指令,對刀具矢量平滑處理,可以使得刀具矢量的變化與線性軸的變化一緻,定嚮插補是對優化後的指令刀位點數據和刀具方嚮進行插補計算,以實現高速加工。通過倣真實驗驗證瞭該算法的有效性和可行性。
위해결오축가공중도구시량변화불균균인기감속화가속적반복발생,대래가공형상변득조조화가공시간변장적문제,제출일충도구시량압축평활정향삽보산법。통과대지령정서진행압축처리,가이거제도위점화도구시량변화소적지령,대도구시량평활처리,가이사득도구시량적변화여선성축적변화일치,정향삽보시대우화후적지령도위점수거화도구방향진행삽보계산,이실현고속가공。통과방진실험험증료해산법적유효성화가행성。
To solve problems that the machined shape becomes rough and the machining time becomes long in five-axis machining posed by deceleration and acceleration are repeated due to uneven change of the tool posture vector. A compression smooth orientation interpolation of tool posture vector was developed. A pro-gram command to a block having small changes in a tool center point position and a tool posture vector was removed by compression process. Tool posture vector command was smoothed to attain a change of tool posture vector in proportion with that of the linear axis command. The orientation interpolation is performed on the optimal commands processed by compression smooth to achieve a high speed machining. A simula-tion test was performed to verify the effectiveness and feasibility of this algorithm.