典型轴类零件的加工工艺及编程.doc

典型轴类零件的加工工艺及编程 摘 要 随着科学技术飞速发展和经济竞争的日趋激烈，机械产品的更新速度越来越快，数控加工技术作为先进生产力的代表，在机械及相关行业领域发挥着重要的作用，机械制造的竞争，其实质是数控技术的竞争。本次设计就是进行典型轴类零件的数控加工工艺与编程，侧重于该零件的工艺分析、加工路线的确定及加工程序的编制。并绘制零件图、加工路线图。用G代码编制该零件的数控加工程序，并附以编程尺寸的计算方法，其中零件工艺规程的分析是此次论文的重点和难点。 关键词：数控加工；工艺过程；加工工序；加工路线 Abstract with the rapid development of science and technology and economic competition becomes more intense, mechanical product update speed faster and faster, CNC machining technology as a representative of advanced productive forces, in the machinery and related industry sector plays an important role, machinery manufacturing competitive, essentially CNC technology competition. This design is for typical shaft parts of CNC machining technology and programming, focuses on the part of the process of analysis, processing route and processing program. And draws a roadmap for parts, processing. G code index this part of NC program, and report to the programming of the calculation method, where the part process analysis is the focus of this paper and difficulty. Key words: NC machining; process; process; processing route 目 录 第1章 概述………………………………………………………………………1 1.1 典型轴类零件的加工工艺……………………………………………… 1 1.2 数控车床概述…………………………………………………………… 3 1.3 镗孔工艺………………………………………………………………… 3 1.4 螺纹加工工艺…………………………………………………………… 4 1.5 分析加工对象…………………………………………………………… 5 第2章 典型轴类零件的加工工艺……………………………………………… 7 2.1 数控加工工艺内容的选择………………………………………………7 2.2 工艺过程………………………………………………………………… 8 2.3 加工工序的划分…………………………………………………………9 2.4 编制工艺过程卡………………………………………………………… 10 2.5 编制加工工序卡………………………………………………………… 13 第3章 加工路线图……………………………………………………………… 18 3.1 刀具加工进给路线的确定……………………………………………… 18 3.2 绘制刀具加工路线图…………………………………………………… 18 第4章 数控刀具表/数控编程基础…………………………………………… 19 4.1 本零件加工所用刀具…………………………………………………… 19 4.2 编程基础………………………………………………………………… 19 毕业总结…………………………………………………………………………… 24 致谢………………………………………………………………………………… 25 参考文献…………………………………………………………………………… 26 附录一………………………………………………………………………………27 附录二………………………………………………………………………………29 第1章 概述 1.1 典型轴类零件的加工工艺 1.1.1 轴类零件的功用、结构特点 轴类零件是机器中经常遇到的典型零件之一