The establishment of workpiece system is a key link in nc machining, and it has a great influence upon nc programming and machining quality.
工件坐标系的建立，是数控加工中一个非常重要的环节，它对数控编程、加工质量都会产生重大影响。
To aim at the research on cutting direction in NC machining of free-form surfaces, a simplified time model for tool trace is established, and the system of tool path programming is discussed.
针对自由曲面走刀方向数控加工的研究，建立了简化的刀具轨迹时间模型，并对路径规划的系统进行了讨论。
Through the research of a processing example, the article gives a new processing method and a NC programming method in changeable disc cutter body processing with machining center.
通过对一个加工实例的分析与探讨，给出了一套加工中心加工可转位式盘状铣刀刀体的加工工艺方案及数控编程方法。
The thesis researched the basic ways of the optimizations, the programming methods, the cutting ways and the cutter selections in the process of the NC machining.
论文研究了机匣数控加工工艺优化的基本实现途径，以及所采用编程方法、切削方式与刀具的选择、切削冷却液的选择等。
The paper analyses the structural characteristic and work principle of screw with variable pitch, designed machining technics, put forward a particular method of nc programming.
文中分析了异型截面供送变螺距螺杆的结构特点和工作原理，设计了其加工工艺，提出了一套加工该螺杆的独特的数控编程方法。
In the article, the incidental problems in nc machining programming are analyzed concretely and their solving methods are provided.
对数控加工编程中容易出现的一些问题进行具体分析，并提出了相应的对策。
Information management, NC equipment design, NC programming and simulation's disjection affects efficiency of NC equipment design and NC machining severely.
目前，数控工装信息管理、数控工装设计、数控编程与加工仿真等环节脱节，严重影响了数控工装设计和数控加工的效率。
The multi-coordinates machining curved face is the pivotal technique in the NC machining, and that planning tool-paths are elements and key of NC codes programming.
多坐标曲面加工是数控加工中的关键技术，而刀具轨迹的规划是数控编程的基础和关键。
By computer simulation of machining we can check the correctness and rationality of NC programming, and avoid the collision between machine tool and blade or fixture.
通过加工仿真，以检查数控程序的正确性、合理性，避免加工设备与叶片和夹具等的碰撞。
Based on the analysis of features of image based NC machining technology, combined Information, Computer Vision and image processing technology, an Automatic NC programming system was developed.
在分析基于图像数据的数控加工技术特点基础上，综合运用信息技术、计算机视觉技术和图像处理技术，开发了基于图像数据的数控自动编程系统。
On the basis of putting forward a new method of calculating joint, programming NC code adopting macro processor and subprogram, machining surface of part by means of row cutting.
在此基础上利用宏子程序进行数控编程，采用行切法切削加工。该方法简便易行，且能保证零件的表面粗糙度和加工精度。
This paper points out that the functions of subroutines and parametric programming of the nc system can complete machining of some special parts.
指出利用数控系统的子程序和参数编程功能可以完成一些特殊零件的加工。
This paper discusses the basic programming methods and steps of 3 - axis NC machining of surfaces.
探讨了曲面三坐标数控加工程序开发的基本方法和步骤。
This paper studied the problems arose from NC machining and illustrated some principles and methods of process planning in NC programming.
就数控编程中的工艺规划问题进行了探讨，阐明了编程中有关工艺处理的若干原则及方法。
The NC Programming Technology of High Speed Machining is one of key subjects of High Speed Machining. It is very important and complicated.
高速加工数控编程技术是高速加工研究的关键内容之一，它极为重要也非常复杂。
This paper mainly describes the NC technique of machining dual-curved cylindrical CAM with turning center, programming and analysis of error-machining.
介绍了采用车削中心加工双侧曲面圆柱凸轮的加工工艺、数控加工程序的编制及圆柱凸轮型面的加工误差分析。
A new method of nc programming for impeller blade is introduced. It was proved that the method was very useful and credible by machining. The method improved the roughness and machining efficiency.
文章提出一种螺旋桨叶型数控加工编程新方法，通过实际加工证明其实用可靠，而且大大提高了表面加工质量和加工效率。
The fuction of automatic programming soft ware for NC machining is introduced. It is proved by model machined that this software is practical and useful.
介绍了涡旋槽数控加工自动编程软件的功能，经多台样机加工证明，该软件切实可行。
According to the practical processing problems of the enterprise in this project, studied and explored the NC machining auto-programming of special-section mould of construction forming machines.
本课题针对企业的实际加工问题，对建筑成型机异形截面芯模的数控加工自动编程进行了研究和探索。
In this paper macroinstructions of FANUC and SIEMENS NC systems are employed to design macroprograms of programming zero transforming and group machining of workpiece.
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。
The paper deals with the principle and structured programming of a microcomputer numerical control (MNC) system that is used on nc machining the turbine impeller with 5-dimension interpolation.
五维插补数控加工透平叶轮的微机数控(mnc)系统主要论述数控加工整体透平叶轮的微机数控系统的结构、工作原理和多维插补法。
Through the typical example in this paper, discussing the whole process of the NC machining of auto-programming the standard and non-standard mould.
文中通过典型实例，详细论述了标准和非标芯模数控加工自动编程的整个过程。
The paper analyses the NC cycle machining in several aspects, such as the efficiency and application of the NC procedure, and gives some practical examples in NC programming.
介绍了一种新颖的粗车自动循环加工控制软件的设计方法，利用这种方法控制软件不必进行大量繁琐的数值计算，即可实现车削循环控制，达到高效高速的目的。
The paper analyses the NC cycle machining in several aspects, such as the efficiency and application of the NC procedure, and gives some practical examples in NC programming.
介绍了一种新颖的粗车自动循环加工控制软件的设计方法，利用这种方法控制软件不必进行大量繁琐的数值计算，即可实现车削循环控制，达到高效高速的目的。
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