摘要
CNC系统的位置精度和运行时间是衡量机床好坏的主要性能指标,加减速模式特别是减速模式对其性能有着重要的影响。笔者针对在连续手动和手轮方式下最后减速段仍然会出现低速运行的"尾巴"现象,分析了出现"尾巴"问题的原因,提出了一种新的实时加减速算法,并给出了试验结果。结果表明,该算法可有效消除减速过程中的低速运行时间段,从而提高机床加工精度和效率。
The positioning accuracy and positioning tin of CNC system are the main performance criteria for industrial applications. The acceleration/deceleration modes, especially deecieruition mode, .ave an important effect on the perform criteria, Aimed at the ＂tail phenomenon＂ of running stage at low speed after decelerating for continuous manual and hand wheel mode based on the previous algorithm, a new real -time deceleration and acceleration algorithm was introduced after analyzing the cause of ＂tail problem＂. The implementation of the proposed deceleration algorithm shows the proposed algorithm is effective so that the machining accuracy and efficiency of machine tool can be improved.
出处
《机床与液压》
北大核心
2008年第F05期287-288,307,共3页
Machine Tool & Hydraulics
关键词
直线加减速
减速点
插补
实时
linear acceleration/deceleration algorithm
Acceleration point
Interpolate
Real-time
