By research on algorithm and strategy of route's making in the spherical surface design, the authors introduce a NC macro program which is applicable and simple.
通过研究球形空间曲面设计的算法及加工路径生成策略，利用宏程序编制出具有通用性、适用性且应用简单的球形空间曲面的加工程序。
The paper introduces graphs aided programming and macro programming in NC system, and then presents the syntax analysis process of macro program.
介绍了数控系统中图形辅助编程和宏程序编程两种编程方法，并给出了宏程序的语法分析过程。
This paper introduced the programming method of macro program and some problems needing attention in NC milling combined with cases.
通过实例介绍了数控铣削加工中宏程序的编程方法和编程中应注意的问题。
Based on the macro program of Hua-zhong NC system, it designs the milling NC program for outside hemisphere.
通过对华中数控系统中宏程序的发掘利用，顺利在经济数控铣床上实现了外半球的加工。
After example validating, the macro program wrote with macro instruction system designed in this dissertation can run well in open NC system.
经过实例验证，使用本文设计的宏指令系统编制而成的宏程序，完全可以在开放式数控系统上正确运行。
It can improved programme efficiency with using macro program. And it can extended using scope of nc machine tool.
使用宏程序可以极大地提高编程效率，并能扩展数控机床的使用范围。
Cutter compensation is the special important function of nc machine, and user macro program is used to improve the capability of nc machine.
刀具补偿功能是数控机床所特有的重要功能，用户宏程序是用户提高数控机床性能的特殊功能。
It can reduce repetitive labor of NC coder using macro-program and subprogram.
使用宏程序和子程序编程，可以减少数控编程者的重复劳动。
Via reading system variables fixed point of axes can be determined in machine coordinates system: Via reading system variables PLC state bit is condition of criterion as NC macro-program goto;
通过读取系统变量可以灵活地确定每一个轴在机床坐标系中的固定点；通过读取系统变量将PLC状态位作为NC宏程序跳转的判断条件；
Via reading system variables fixed point of axes can be determined in machine coordinates system: Via reading system variables PLC state bit is condition of criterion as NC macro-program goto;
通过读取系统变量可以灵活地确定每一个轴在机床坐标系中的固定点；通过读取系统变量将PLC状态位作为NC宏程序跳转的判断条件；
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