异形零件的数控工艺分析与编程.doc

1、异形零件的数控工艺分析与编程摘 要：论文首先介绍了数控加工以及数控加工工艺的基本概念。然后分析了数控加工工艺的特点及数控加工与普通机床加工的异同点，得出数控机床对于具有加工精度高，工艺难度较大，加工工位多等特点的异形零件的加工有其独特的优势，最后以典型的炮箱零件为例，对其数控加工进行工艺分析及程序编写。数控加工工艺是采用数控机床加工零件时所运用各种方法和技术手段的总和，应用于整个数控加工工艺过程。数控加工工艺是伴随着数控机床的产生和发展而逐步完善起来的一种应用技术，它是人们大量数控加工实践的总结。数控加工工艺是数控编程的前提和依据，没有符合实际的、科学合理的数控加工工艺，就不可能有真正可行的数

2、控加工程序。数控编程就是将制定的数控加工工艺内容程序化。关键词：数控加工工艺，异形零件，数控编程Technology analysis and programming of numerical control forspecial-shaped partsAbstract：Firstly, the basic concepts of NC machining and NC machining process areintroduced. Then the paper analyses the characteristics of the CNC machining process andthe

3、 differences between CNC machining process and common machine process, drawing theconclusion that CNC machine tools for manufacturing high-precision, difficult processing,the many work positions parts has its unique advantages. Finally, I finish the NC machiningprocess analysis and program of typica

4、l gun box parts.Numerical control machining process is the sum of all kinds of methods and techniquesused in machining parts by numerical control machine tools, and it is applied for the wholenumerical control process. Numerical control machining technology is a kind of applicationtechnology which i

5、s gradually perfected along with the production and development ofnumerical control machine tools. It is a summary of many numerical control machiningpractices. Numerical control machining process is reasonable and basal for NC programming.It is impossible to have the practical NC machining program

6、without the actual and scientificand reasonable numerical control machining process. Numerical control programming is theprogramming of the NC machining process.Keywords: numerical control machining process, special-shaped parts, numericalcontrol programming目录1 绪论.1 1.1 数控加工在机械制造业中的地位和作用.1 1.2 数控加工的

7、发展.1 1.3 数控加工的概念.2 1.4 数控加工的特点.2 1.5 数控加工工艺综述.3 1.5.1 数控加工工艺的概念.4I太原工业学院毕业设计 1.5.2 数控加工工艺设计的主要内容.4 1.5.3 数控加工工艺与普通加工工艺的共同点.5 1.5.4 数控加工工艺与普通加工工艺的区别.52 数控机床加工炮箱的工艺分析.7 2.1 材料的选择.7 2.2 零件图工艺分析.7 2.3 设备的选择.7 2.4 确定零件的定位基准和装夹方式.8 2.4.1 粗基准的选择.8 2.4.2 精基准的选择.8 2.4.3 确定装夹方案.9 2.5 加工阶段的划分.9 2.6 加工顺序的安排.9 2.7 加工路线分析.93 数控加工程序编制.12 3.1 数控编程及其发展.12 3.2 数控编程的分类.12 3.2.1 手工编程.12 3.2.2 自动编程.12 3.3 Mastercam 的简介.134 运用 Mastercam 编写炮箱加工程序.14 4.1 在卧式加工中心上的加工程序.14 4.2 在立式加工中心上的加工程序.34总结.