介绍一种由作者自行研制的以 89C51单片机为控制核心的磨床工业自动控制系统 ,阐述了其工作原理 ,给出了主要的硬件框图和软件主程序流程图 ,分析了断电保护程序的设计 ,最后说明了系统的实际使用效果 This paper introduces a grinder industrial automatic control system developed by the author with 89C51 single chip microcomputer as the control center. The working principle of the grinder is expounded. The main hardware block diagram and the main flow chart of the software are given. The design of the power failure protection program, Finally, the actual effect of the system is illustrated