数控技术毕业论文

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1、 前言 制造业是我国国民经济的支柱产业，其增加值约占我国国内生产总值的 40%以 上，而先进的制造技术是振兴制造业系统工程的重要组成部分。21 世纪是科学技术 突飞猛进、不断取得新突破的世纪，它是数控技术全面发展的时代。数控机床代表一 个民族制造工业现代化的水平，随着现代化科学技术的迅速发展，制造技术和自动化 水平的高低已成为衡量一个国家或地区经济发展水平的重要标志。 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。车削 中心

2、可在一次装夹中完成更多的加工工序，提高加工精度和生产效率，特别适合于复 杂形状回转类零件的加工。 本文主要讨论的就是作为制造业的组成部分数控车床。 主要内容有关于数控车床 的编程方法、编程的注意事项、加工工艺分析、刀具的选用、刀位轨迹计算。 下面就是本文的主题，关于数控车床的编程与实例。 Preface Manufacturing industry is the pillar industry of our national economy, its added value accounted for more than 40% of gross domestic product in Chi

3、na, and the advanced manufacturing technology is an important part of manufacturing system engineering. Twenty-first Century is the science and technology make a spurt of progress, continuously made new breakthrough of the century, it is the comprehensive development of NC technology era. NC machine

4、 tools represent a national industry modernization level, along with the rapid development of modern science and technology, manufacturing technology and automation level has become an important symbol to measure the level of economic development of a country or region. 1 CNC lathe is one of the mos

5、t widely used at present, NC machine tools. CNC lathe is mainly used for machining shafts, and other rotary. NC machining process through the operation can be done automatically, cutting the external cylindrical surface, conical surface, forming surface, thread and end of the process, and can be tan

6、k cars, drilling, reaming, reaming work. Turning center can be completed in a single setup process more, improve the machining accuracy and production efficiency, especially suitable for processing of complex shape parts of revolution. This paper mainly discusses is as part of CNC lathe manufacturing industry. The main content of the NC lathe programming method, programming notes, process analysis, tool selection, tool path calculation. The following is the subject of this paper, programming wi