设计任务书设计题目：轴类零件的数控加工编程设计要求：1、了解数控的构成与使用规程。2、绘制零件的CAD图。3、一定要保证零件的车削精度，不能出现零件有损坏的情况。4、选择合适的刀具。5、选择合适的夹具。6、编写零件的数控程序，并检查执行程序。设计进度要求：第一周：确定毕业设计题目。第二周、第三周：查阅资料。第四周、第五周：进行初步的设计。第六周：对设计进行修改。第七周：对设计进行进一步的修改优化。第八周：完成设计，打印初稿。指导教师（签名）：摘要随着科学技术和工业生产的飞速发展，国民经济各个部门迫切需要各种各样质量优、性能好、效率高、能耗低、价格廉的机械产品。其中，产品设计是决定产品性能、质量水平、市场竞争力和经济效益的重要环节。因此，采用数控加工就成了最好的选择，因为它加工效率高、质量好、加工精度高。本文主要介绍数控加工技术概述、数控加工的切削基础、数控加工工艺设计及数控加工工艺文件、数控加工的工具系统、数控加工夹具、复杂形状零件的数控加工工艺、数控车削和加工中心的加工工艺。关键词：数控工艺，加工夹具目录摘要··························································································II1数控技术概述··················································································11.1数控机床的产生与发展···································································21.2数控加工的特殊之处····································································51.3数控加工工艺特点与内容······························································62刀具和切削用量的选择·······································································82.1数控机床对刀具的要求··································································82.2数控刀具材料的选择····································································82.3切削用量的选择···········································································92.4数控车床刀具的选刀过程·····························································113夹具的选择····················································································124数控机床的坐标系统·······································································144.1机床坐标系················································································144.2工件坐标系················································································145数控车削工艺···········································...
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