求数控车相关技术论文素材

控车 零件工艺设计及程序编制 摘要 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。 数控车 床种类较多，但主体结构都是由：车床主体、数控装置、伺服系统三大部分组成。 数控机床的编程方法有手工编程和自动编程两种。手工编程，编制复杂零件时，容易出错；而自动编程则不会发生这种情况。 编程就是将加工零件的加工顺序、刀具运动轨迹的尺寸数据、工艺参数（主运动和进给运动速度、切削深度）以及辅助操作（换刀、主轴正反转、冷却液开关、刀具夹紧、松开等）加工信息，用规定的文字、数字、符号组成的代码，按一定格式编写成加工程序。 数控机床程序编制过程主要包括：分析零件图纸、工艺处理、数学处理、编写零件程序、程序校验。 机床夹具的种类很多，按使用机床类型分类，可分为车床夹具、铣床夹具、钻床夹具、镗床夹具、加工中心夹具和其他夹具等。按驱动夹具工作的动力源分类，可分为手动夹具、气动夹具、液压夹具、电动夹具、磁力夹具和自夹紧夹具等 关键词：数控，车床，编程，加工 NC programming and machining parts Abstract CNC lathe is the most widely used one of the CNC machine tools. CNC lathe machining for the main shaft, plates and other types of rotating parts. NC machining process through the operation can be done automatically and outside the cylinder, cone surface, forming surface, Thread and End of the processes of cutting, and the car bays, drilling and reaming, Reaming work. CNC lathe more categories, but the main structure are : the main Lathe, CNC equipment, servo system has three major components. CNC machine tool programming manual methods of programming and automatic program two. Manual programming, the preparation of complex parts, prone to error; And automatic programming will not happen. Programming is part of the processing sequence processing, tool trajectory size data Process parameters (main movement and feed velocity, cutting depth) and ancillary operations (ATC, spindle rotating direction Coolant switches, tool clamping, loose, etc.) the processing of information, with the words, figures and symbols of code, according to a certain format into processing procedures. CNC machine tool programming process include : analysis of parts drawings, crafts, math, procedures for the preparation of parts, calibration procedures. Fixture of many types, by the use of machine type can be divided into fixture lathe, milling machine fixture, drilling fixture. Jig Boring Machine, processing centers and other fixture fixture. Fixture driven by the dynamic source categories can be divided into manual fixture, the fixture pneumatic, hydraulic fixture, electrical fixture, Magnetic clamping fixture and the fixture since. Key words: CNC, lathe, programming, processing. 目录 摘要I Abstract II 第1章 概 述 1 1.1 数控机床的优点 1 1.2 数控机床的发展趋势 1 1.2.1高速、高精加工 技术 及装备的新趋势 2 1.2.2轴联动加工和复合加工机床快速发展 2 1.2.3智能化、开放式、网络化成为当代数控系统发展的主要趋势 3 1.2.4重视新 技术 标准、规范的建立 4 第2章 加工前的准备 6 2.1 加工步骤 6 2.2 工序划分的主要原则 6 2.3 数控机床的选择 6 2.4 装夹方式和夹具的选择 6 2.5 刀具的选择 7 2.6 切削用量 8 2.7 确定定位基准 10 第3章 数控加工 11 3.1 加工工艺决策 13 3.2 零件图形 10 3.3 加工刀具 15 3.4 加工工序 15 3.5 工艺刀具卡 17 第4章 小 结 19 参考文献 21 后记22 致谢23 附录1 英汉互译 24 附录2 编程总录 29