1、 1 毕业设计（论文） 摘摘 要要 数控车床是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、盘状类回转 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、成型表面、螺纹和断面 等工序的加工，并能进行车槽、钻孔、扩孔、绞孔等工作。 数控车床结构多样，但多数都是由：车床主体、操作面板、伺服系统三大部分组成。 数控车床的编程方法有手动编程和自动编程两种。所谓编程就是将加工零件的加工工序、刀具 的运动轨迹、工艺参数（主轴转速、进给速度、切削深度）以及辅助操作（换刀、主轴正反转、 冷却液开关等）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。 程序编制过
2、程主要包括：分析零件图纸、工艺分析、数学处理、编写程序、程序效验五个 步骤。 关键词关键词 数控车床;编程;实体建模;CAD;实体建模 Abstract CNCCNC lathe is the most widely used is one of CNC machine tools, CNC lathe is mainly used for machining shafts, discoid type rotary part. Running through the NC program can be done automatically and external cylindrical su
3、rface, conical surface, forming surface, such as thread and process cross-section processing, and can be tank cars, drilling, reaming, reaming and so on. CNC lathe structure varied, but most are made: turning the main body, the control panel, servo system has three major components. CNC lathe progra
4、mming methods are two kinds of manual programming and automatic programming. Programming is the process called machining process, tool trajectory, process parameters (spindle speed, feed rate, cutting depth) and ancillary operations (ATC, spindle reversing, coolant switch, etc.) processing information, with the provisions of 2 Text, numbers, symbols of the code written by a certain format, into the processing procedures. Programming process includes: analysis of part drawings, technical analys
