文章以一个固定循环指令实现阵列孔加工为例，介绍了数控编程指令功能扩展的二次开发技术。
It introduces secondary development for NC programming by the example of a fixed instruction to machine arrayed drills.
数控车床内、外径粗车循环g71是数控车床手工编程中最常用的指令之一。
Rough cutting cycle instruction G71 is one of the commonly used instructions in manual Program of NC lathes.
数控系统是被一系列编程指令操作的。
通过在FPGA内部实现PLC逻辑，并提供能够编译PLC指令的编译器，实现了数控系统对通用PLC编程语言的支持。
Through realizing PLC logic in FPGA and providing a compiler which can be used to compile PLC command to implement the sup - port of NC system to universal PLC program language.
计算机数控编程员把计划好的机床操作转变成一套指令。
CNC programmers turn the planned machining operations into a set of instructions.
介绍了在数控机床编程中，如何能更好地使用刀具长度补偿指令及其使用技巧。
This article is about how to fully make use of the command of cutter length compensation and the using skills in numerical control programming.
这种方法完全可以使用在FANUC数控系统中，以按键操作和指令编程的方式对操作者的要求较低。
This method can use FANUC nc system in operation and programming instructions on buttons of operator is.
并通过对两种数控系统的编程的比较说明了数控系统指令代码的区别，以及如何针对各数控系统的特点来使用它们。
By comparing of programming, have indicated difference of instruction code and how used them according to characteristic of numerical control system.
本文利用FANUC及SIEMENS数控系统的宏指令功能，设计了编程零点变换宏程序和零件成组加工宏程序。
In this paper macroinstructions of FANUC and SIEMENS NC systems are employed to design macroprograms of programming zero transforming and group machining of workpiece.
介绍在数控铣床上灵活使用刀具半径补偿指令，可使数控编程简单化，保证被加工零件的品质。
When the instructions of compensation for the tool radius are put to use flexibly, it can simplify NC program and assure the quality of the part that is made on the NC milling machine.
基于FANUC-0 MD系统的宏指令功能，运用该原理编写了一模具锥面的数控加工程序，实例应用表明这种编程方法不仅减轻了规则曲面手工编程的困难，而且使曲面加工质量更加容易保证。
With the theory, a piece of CNC codes for machining a sample cone surface is programmed based on NC macro instructor function of FANUC-0MD CNC system. , which is much efficient and universal.
基于FANUC-0 MD系统的宏指令功能，运用该原理编写了一模具锥面的数控加工程序，实例应用表明这种编程方法不仅减轻了规则曲面手工编程的困难，而且使曲面加工质量更加容易保证。
With the theory, a piece of CNC codes for machining a sample cone surface is programmed based on NC macro instructor function of FANUC-0MD CNC system. , which is much efficient and universal.
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