摘要
本文给出了摆线数据采样插补公式、终点判据和流程图，详细分析了该算法的各种误差对加工精度的影响．表明该算法的轨迹误差小于１μｍ，进给步长误差小于０２５μｍ／８ｍｓ．运用该算法编制的插补程序，在３３ＭＨｚ８０３８６ＣＰＵ（带８０３８７协处理器）下运行，每次插补占用机时小于１．５ｍｓ．完全满足高精度和实时性的要求．
This paper presents the cycloid time-slicing interpolation formulas, the and determination rule and the calculation chart, analyzes in detail the interpolation errors caused by rounding off and in the calculation process, it turns out that the contour error is less than 1μm and the feedrate error less than 0.25 μm/ 8ms, it only takes less thn 1.5ms machine times to interpolate once in a CNC system of 33MHz 80386 CPU (with 80387), so the interpolation method is aceurate and rapid.
出处
《上海大学学报（自然科学版）》
CAS
CSCD
1996年第2期158-165,共8页
Journal of Shanghai University:Natural Science Edition
关键词
CNC
摆线
插补
数据采样法
数控机床
数控系统
computer numerical control
cycloid interpolation
time-slicing method
error analysis
