PARAMETRIC INTERPOLATOR VERSUS LINEAR INTERPOLATOR FOR PRECISION CNC MACHINING
PARAMETRIC INTERPOLATOR VERSUS LINEAR INTERPOLATOR FOR PRECISION CNC MACHINING
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DOI：
10.1016/0010-4485(94)90045-0
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发表时间：
1994-03-01
影响因子：
4.3
通讯作者：
KONG, T
中科院分区：
文献类型：
--
作者：
YANG, DCH;KONG, T
本文提出了一个比较研究的线性和参数插补器用于数控加工过程中的命令生成。几十年来，线性插补器一直用于数控机床中的命令生成。最近，已经开发了一种参数化的命令生成器，其被设计用于参数曲线（或曲面）的命令生成。介绍了两种在线实现该参数化神经网络的算法。比较主要是基于内存大小，进给速度波动和CPU时间。其他考虑因素包括跟踪误差和加加速度幅度。结果表明，在高速、高精度的自由曲面加工中，参数化编程是有利的。
The paper presents a comparative study of linear and parametric interpolators used for command generation during CNC machining. For many decades, linear interpolators have been used in NC machines for command generation. Recently, a parametric interpolator has been developed that is designed for command generation for parametric curves (or surfaces). Two algorithms for the online implementation of this parametric interpolator are introduced. The comparison is mainly based on memory size, feedrate fluctuation and CPU time. Other considerations include tracking errors and jerk magnitude. Results show that the parametric interpolator is favourable in the machining of free-form geometry in terms of high speed and tight tolerancing.