步进模式数控系统插补算法的研究及实现

Research and Implementation of Interpolation Algorithm for the Stepper Model NC System

针对传统的单片机控制数控系统的缺陷,提出了基于步进模式的数控系统新的插补算法。算法分为前期数据预处理、DSP插补运算、数据下载、单片机动作实现等步骤;通过搭建基于DSP和单片机的多CPU结构的运动控制卡实验平台和设计上位机软件对算法进行了验证。在多CPU运动控制卡实验平台和数控铣床上完成了实验,实验表明新的算法能够有效地解决传统数控系统加工过程不流畅、加工效率不高、噪声大等问题。该算法为今后基于单片机、FPGA等数控系统的设计提供了参考。

According to the problems of traditional NC system based on single chip microcomputer control,it puts forward a new interpolation algorithm for the stepper model NC system.Interpolation algorithm is divided into data pre-processing,interpolation operation on DSP,data download,realization of movement on SCM,etc.The new interpolation algorithm is analyzed and validated by multi-CPU motion control card and computer software.The new system effectively solves the traditional problems,such as not smoothly process,low efficiency and large noise etc.This algorithm provides reference for the design of NC system based on SCM and FPGA.