杆螺纹轴数控车削加工工艺过程及编程设计精选资料.docVIP

摘 要 从20世纪数控技术出现以来，数控机床给机械制造业带来了革命性的变化。数控加工具有加工柔性好，加工精度高，生产率高，减轻劳动强度、改善劳动条件，现代化的生产管理和良好的经济效益等特点。数控机床是一种高度机电一体化的产品，适用于加工多品种小批量、结构复杂、精度要求高、需频繁改型、要求精密复制、价格昂贵且不允许报废的关键零件等。当今世界，为满足用户更多需求，各国机床制造商为争夺用户、扩大市场，竞相发展机电一体化、高精、高效、高自动化机床。 Abstract Since twentieth Century of numerical control technology, numerical control machine tool to bring a revolutionary change in the mechanical manufacturing industry. NC machining processing with good flexibility, high machining precision, high productivity, reduce labor intensity, improve working conditions, the modernization of production management and good economic benefit etc.. NC machine tool is a kind of mechanical and electrical products, applicable to the processing of many varieties of small batch, complex structure, high precision, need frequent modification, precision replication, expensive and does not allow the scrap key parts etc.. In todays world, to meet the user more demand, machine tool manufacturers for the user, enlarge the market, competing for the development of electromechanical integration, high precision, high efficiency, high automation machine. Keywords: CNC machine tool rod threaded shaft processing small quantities 目 录 摘要…………………………………………………………………………2 引言 ………………………………………………………………………4 数控车床概述………………………………………………………………4 2.1数控车床的基本构成及特点………………………………………………4 2.1.1数控车床的基本构成……………………………………………………4 2.1.2数控车床的结构特点……………………………………………………5 2.2数控车床的分类……………………………………………………………5 2.2.1按数控系统的功能分类…………………………………………………6 2.2.2按加工零件的基本粪型分类……………………………………………6 2.2.3 按数控车床主轴位置分类………………………………………………6 2.2.4 按刀架数量分类……………………………………………………7 2.3数控车床的加工特点………………………………………………………8 数控车削加工工艺编制基础………………………………………………9 3.1零件图工艺分析…………………………………………………………9 3.1.1结构工艺性分析…………………………………………………………9 3.1.2精度及技术要求分析………………………………………………………9 3.2加工方案确定………………………………………………………………10 3.3夹具的选择…………………………………………………………………11 3.3.1用于轴类工件的夹具……………………………………………………11 3.3.2用于盘类工件的夹具……………………………………………………12 3.4刀具的选择…………………………………………………………………12 3.4.1车刀刀片材料的选用……………………………………………………12 3.4.2车刀类型及其几何参数的选用…………