摘要 数控技术是技术性极强的工作，尤其在机械加工领域应用最为广泛，所以这要求从业人员具有很高的机械加工工艺知识，数控编程知识和数控操作技能。此次的设计任务是对零件的加工工艺设计与程序编制及加工，利用绘图软件AutoCAD将零件的二维图画出来,然后用UG软件画出三维图形,再接着设计加工方案。方案的关键在于以生成最佳的刀具路径、利用最短的时间内加工出零件,且加工工序最优,加工出来的零件的工艺符合设计图纸的要求。根据这些要求选择最佳的加工工艺方案，填写工艺卡片，工序卡片。用软件编写加工程序,并且进行仿真验证得到加工效果图。 关键词：加工工艺；编程；加工 Abstract Numerical co
ntrol tech
nology is a highly tech
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nical processi
ng is the mostwidely used, so this requires practitio
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nd skills. The desig
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ng software AutoCADwill be out of the picture parts i
n 2D, a
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n use UG software to draw the three-dime
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nerate the tool path, the best use of the shortest processi
ng time of parts, a
nd the processi
ng procedure of optimal, processi
ng out of the parts meet the requireme
nts of desig
n drawi
ngs. Accordi
ng to the requireme
nts of processi
ng scheme of the best choice, fill i
n the process cards, process cards. Usi
ng software to program the processi
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nd carries o
n the simulatio
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ng 目录 摘要I Abstract II 1绪论1 1.1本课题研究的背景1 1.2数控设备的简介1 1.3本研究的目的与意义1 1.4数控加工工艺与普通加工工艺的区别及特点2 2工艺性分析3 2.1零件介绍3 2.2零件加工工艺性分析3 2.3零件的技术要求分析4 3工艺规程设计5 3.1毛胚的选择5 3.1.1确定毛坯的类型5 3.1.2确定毛坯的余量5 3.2加工顺序的划分和加工工艺路线的确定6 3.2.1加工顺序的划分6 3.2.2加工工艺路线的确定6 3.3选择并确定工艺装备7 3.3.1数控机床的选择7 3.3.2夹具的选择8 3.3.3刀具的选择9 4工艺参数选择及工艺卡片的填写10 4.1刀具参数的选择10 4.2制定工艺文件13 4.3工序卡13 5基于UG的三维建模造型14 5.1进入页面14 5.2方块的造型操作14 5.3凸台的造型操作15 5.4倒角16 5.5拉伸操作16 5.6创建孔17 5.6拉伸凸台18 6基于UG加工程序编制20 6.1数控编程的分类20 6.2数控编程20 6.3数控加工仿真25 6.3程序的后处理27 致谢31 参考文献32