摘 要： 提出一種能實(shí)現(xiàn)進(jìn)給速度控制的函數(shù)曲線直接生成的新方法及實(shí)現(xiàn)方案，由被加工函數(shù)曲線方程推導(dǎo)出各軸向速度控制模型，對(duì)各軸向步進(jìn)電機(jī)速度直接控制，實(shí)現(xiàn)加工點(diǎn)的給定合成進(jìn)給速度和運(yùn)動(dòng)軌跡．同時(shí)較好地解決了曲線精確步進(jìn)與敷控系統(tǒng)容量的矛盾。仿真實(shí)驗(yàn)結(jié)果驗(yàn)證了該控制方法的正確性和可行性。 關(guān)鍵詞：步進(jìn)電機(jī)；CNC；進(jìn)路速度；控制；函數(shù)曲線 [b] [/b] Abstract： This paper presents a new method for machining fonctional curves to reach the specified feedrate．a(chǎn)nd derive the speed controlled models from the curve representation function．With the proposed method the speed of stepping motor of every axes can be controlled dhectly so the motion spoed becomes smooth．which is of great importance of keeping stepping motor retating steadily from missing steps．Meanwhile the confhict between part percision and CNC machine’s memory resolved．The motion accuracy and feasibility of the proposed method have been verified with provided intersecting curve example． Kye word： stepping motor；CNC；feedrate；control；funetional curves 點(diǎn)擊此處下載原文