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本文介绍了GAC－Ⅱ型曲轴外圆精磨微机控制系统的工作原理、硬件和软件结构及加工精度分析。该系统应用于曲轴外圆磨削加工，收到了良好的经济效益。
This paper introduces the working principle of GAC-Ⅱ crankshaft cylindrical grinding machine control system, hardware and software structure and processing accuracy analysis. The system used in cylindrical grinding crankshaft, received a good economic benefits.