关键词: 数控加工；宏程序嵌套；坐标系计算；误差分析

Abstract: This article focuses on the automatic calculation of the coordinate system of a horizontal machining center, and elaborates in detail on the specific methods and steps for realizing the automatic calculation of the coordinate system through the nesting of macro programs. At the same time, a nested macro program with wide applicability is designed to deal with diverse machining scenarios. Verified by actual production, the nested technology of the macro program for automatic calculation of the coordinate system has significantly improved the efficiency of production preparation before machining, effectively enhanced the machining accuracy, greatly reduced the problem of error accumulation caused by human factors, and provided a powerful guarantee for the efficient and high-quality machining of products.

Key words: NC machining; macro program nesting; coordinate system calculation; error analysis