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摘 要

此次论文针对典型零件的工艺分析与加工及数控的发展而编写的。

数控技术及数控机床在当今机械制造业中的重要地位和巨大效益，显示了其在国家基础工业现代化中的战略性作用，并已成为传统机械制造工业提升改造和实现自动化、柔性化、集成化生产的重要手段和标志。数控技术及数控机床的广泛应用，给机械制造业的产业结构、产品种类和档次以及生产方式带来了革命性的变化。数控机床是现代加工车间最重要的装备。它的发展是信息技术(1T)与制造技术(MT)结合发展的结果。现代的CAD/CAM、FMS、CIMS、敏捷制造和智能制造技术，都是建立在数控技术之上的。掌握现代数控技术知识是现代机械类专业学生必不可少的。

在数控加工中，从零件的设计图纸到零件成品合格交付，不仅要考虑到数控程序的编制，还要考虑到零件加工工艺路线的安排、加工机床的选择、切削刀具的选择、零件加工中的定位装夹等一系列因素的影响，在开始编程前，必须要对零件设计图纸和技术要求进行详细的数控加工工艺分析，以最终确定哪些是零件的技术关键，哪些是数控加工的难点，以及数控程序编制的难易程度。

零件的数控加工工艺分析是编制数控程序中最重要而又极其复杂的环节，也是数控加工工艺方案设计的核心工作，必须在数控加工方案制定前完成。一个合格的编程人员对数控机床及其控制系统的功能及特点，以及影响数控加工的每个环节都要有一个清晰、全面的了解，这样才能避免由于工艺方案考虑不周而可能出现的产品质量问题，造成无谓的人力、物力等资源的浪费。因此，全面合理的数控加工工艺分析是提高数控编程质量的重要保障。
数控车床是目前使用最广泛的数控机床之一。数控车床主要用于加工轴类、盘类等回转体零件。通过数控加工程序的运行，可自动完成内外圆柱面、圆锥面、成形表面、螺纹和端面等工序的切削加工，并能进行车槽、钻孔、扩孔、铰孔等工作。

关键词：机床 机械加工 编程 数控

Abstract

This paper aimed at a typical part of the process analysis and processing and the development of CNC prepared.

CNC technology and CNC machine tools in today's machinery manufacturing industry in the important position and great efficiency, showing its presence in the national infrastructure in the strategic role of industrial modernization, and has become the traditional mechanical manufacturing industry to enhance the transformation and realization of automation, flexible, integrated an important means of production and logo. CNC technology and CNC machine tool widely used for industrial machinery manufacturing industry, product type and grade as well as the mode of production has brought a revolutionary change. CNC machine tool is the most important modern processing plant equipment. Its development of information technology (1T) and Manufacturing Technology (MT) integrated development results. Modern CAD / CAM, FMS, CIMS, agile manufacturing and intelligent manufacturing technology, are based on numerical control technology on top of. To master modern CNC machinery and technical knowledge of modern students essential.

In CNC machining, from parts design drawings to the finished part qualified to deliver, not only to take into account the preparation of the CNC program, but also taking into account the part machining process route arrangement, machine tool selection, the choice of cutting tools, spare parts processing in the positioning fixture and a series of factors, at the beginning of programming, they must want to part design drawings and technical requirements to conduct a detailed analysis of NC machining process in order to finally determine which is the key technology components, which are CNC machining difficulty, as well as the ease with CNC Programming.

Part of the NC machining process analysis is the preparation of numerical control program of the most important and most complicated part, but also CNC machining process design the core work must be completed before the enactment of NC machining programs. A qualified programmer for CNC machine tools and its control system functions and characteristics, and impact every aspect of CNC machining must have a clear and comprehensive understanding of the program so as to avoid ill-considered processes that might arise from the product quality problems, resulting in unnecessary human and material resources, waste of resources. Therefore, comprehensive and reasonable analysis of NC machining process is to improve the quality of an important guarantee for NC programming.
CNC lathe is the most widely used one of CNC machine tools. CNC lathe is mainly used for machining shaft, disk type and so on rotational parts. Run through the NC program can automatically complete the internal and external cylindrical surface, conical surface, forming surface, such as threading and end-machining processes, and can be tank cars, drilling, reaming, reaming and so on.


Keywords: Machine Tool Programming CNC Machining

Abstract This paper aimed at a typical part of the process analysis and processing and the development of CNC prepared. CNC technology and CNC machine tools in today's machinery manufacturing industry in the important position and great efficiency, showing its presence in the national infrastructure in the strategic role of industrial modernization, and has become the traditional mechanical manufacturing industry to enhance the transformation and realization of automation, flexible, integrated an important means of production and logo. CNC technology and CNC machine tool widely used for industrial machinery manufacturing industry, product type and grade as well as the mode of production has brought a revolutionary change. CNC machine tool is the most important modern processing plant equipment. Its development of information technology (1T) and Manufacturing Technology (MT) integrated development results. Modern CAD / CAM, FMS, CIMS, agile manufacturing and intelligent manufacturing technology, are based on numerical control technology on top of. To master modern CNC machinery and technical knowledge of modern students essential.

In CNC machining, from parts design drawings to the finished part qualified to deliver, not only to take into account the preparation of the CNC program, but also taking into account the part machining process route arrangement, machine tool selection, the choice of cutting tools, spare parts processing in the positioning fixture and a series of factors, at the beginning of programming, they must want to part design drawings and technical requirements to conduct a detailed analysis of NC machining process in order to finally determine which is the key technology components, which are CNC machining difficulty, as well as the ease with CNC Programming.

Part of the NC machining process analysis is the preparation of numerical control program of the most important and most complicated part, but also CNC machining process design the core work must be completed before the enactment of NC machining programs. A qualified programmer for CNC machine tools and its control system functions and characteristics, and impact every aspect of CNC machining must have a clear and comprehensive understanding of the program so as to avoid ill-considered processes that might arise from the product quality problems, resulting in unnecessary human and material resources, waste of resources. Therefore, comprehensive and reasonable analysis of NC machining process is to improve the quality of an important guarantee for NC programming

CNC lathe is the most widely used one of CNC machine tools. CNC lathe is mainly used for machining shaft, disk type and so on rotational parts. Run through the NC program can automatically complete the internal and external cylindrical surface, conical surface, forming surface, such as threading and end-machining processes, and can be tank cars, drilling, reaming, reaming and so on. Keywords: Machine Tool Programming CNC Machining

Picking

This paper analyses the typical parts and machining process and the development of numerical control.

Numerical control technology and CNC machinery manufacturing industry in today's huge benefits and the important position in the country, and shows its strategic role in modern industrial base, and has become a traditional mechanical manufacturing industry upgrading transformation and automation, flexibility and integrated production of important means and logo. Numerical control technology and the wide application of nc machine tools, machinery manufacturing industry structure, product categories and class and production brought the revolutionary change. CNC machine is the most important modern processing workshop equipment. It is the development of the information technology (1T) and manufacturing technology development (MT). Modern CAD/CAM, FMS, CIMS, agile manufacturing and intelligent manufacturing technology, are built in the numerical control technology. Mastering modern CNC technology knowledge is modern mechanical majors.

In the numerical control processing, from parts of the design drawing parts products, not only should consider eligible consign to nc programming, to consider parts processing route arrangement, machine tools, cutting machining, the choice of clamping positioning and so on a series of factors, at the beginning of programming, must for parts design drawings and technical requirements of nc machining process of the detailed analysis to determine what is the key technology of parts, what is the difficulty of nc machining and CNC programming, the degree of difficulty.

Parts of nc machining process analysis is compiled nc program is one of the most important and complicated, but also the link of nc machining process design, the core work must be finished before scheme of nc machining. A qualified personnel for CNC programming and its control system, the functions and characteristics, and the influence of nc machining of every link will have a clear and comprehensive understanding, such ability avoid due process scheme and possible thoughtless of product quality problem, causing unnecessary manpower and material resources waste. Therefore, the comprehensive analysis of nc machining process of the reasonable is an important guarantee of quality of CNC programming. CNC lathe is currently the most widely used one of nc machine tools. CNC lathe is mainly used for manufacturing axial, such as axisymmetrical parts. Through the nc machining program operation, can be done automatically YuanZhuMian inside taper surface, forming, surface, thread and surface machining processes, and can perform car slots, drilling, reaming, etc.

Keywords: CNC machine machining program