机械5

摘要 随着数控技术的发展，数控技术给传统制造业带来了革命性的变化，制造业成为工业化的象征，而且随着数控技术的不断发展和应用领域的扩大，它对一些重要行业的发展起着越来越重要的作用。随着科技的发展，数控技术也在不断的发展更新，现在数控技术也称计算机数控技术，加工软件的更新快，CAD/CAM的应用是一项实践性很强的技术。如像UG, PRO/E, Master CAM,CAXA制造工程师等。 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。本文主要通过对零件的数控工艺分析与加工，综合所学的专业知识，全面考虑可能影响铣削的因素，设计其加工工艺和编辑程序，完成要求。 关键词:铣削、CAD/CAM、UG、数控加工 Abstract With the developme
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nt of updates. Now,
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nique, like UG, PRO/E, Master CAM, CAXA ma
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ngi
neers, etc. Numerical co
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nicalwork, especially i
n the mold domai
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nc craft a
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nc machi
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ng 目录 摘要I Abstract II 1绪论1 1.1数控加工技术国内外发展现状1 1.1.1我国数控技术发展现状1 1.1.2与国外的差距1 1.2数控加工技术国内外现状2 2工艺性分析4 2.1零件介绍4 2.2零件加工工艺性分析5 3毛坯与工艺装配的选择6 3.1毛坯的选择6 3.2定位基准选择7 3.3工序的划分和加工工艺路线的确定8 3.3.1加工方法的选择8 3.3.2工序的划分9 3.4选择并确定工艺装备10 3.4.1数控机床的选择10 3.4.2夹具的选择11 3.4.3量具的使用表12 3.5.4刀具的选择13 4工艺参数选择14 4.1切削用量的选择原则14 4.2切削用量的选择15 5零件的三维造型17 5.1创建底板17 5.2创建圆弧凸台18 5.3创建圆弧凹槽19 6加工程序编制21 6.1数控编程的分类21 6.2数控编程21 6.3仿真加工及后处理27 总结30 致谢31 参考文献32