机械5

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。 本次设计在开头讲解了数控加工技术内外发展现状，第二个章节对零件图进行分析了解产品结构和尺寸。第三个章节主要是对零件的需要加工的部位及加工方法进行说明书、对零件毛坯进行了选择、选定零件的定位基准和加工工艺路线、加工机床和使用的刀具进行选择，在章节的后面确定了加工刀具的切削参数，填写数控加工工艺卡片。第四章对零件的编程方法进行了选择，选择为自动编程。讲述了在UG软件内如何创建几何体、刀具。接着讲述了平面铣加工的操作、钻孔加工操作、型腔铣加工操作，完成零件的加工。在文章的最后章节对零件进行仿真加工，确保加工刀路和工艺安排正确，把程序后处理出来，完成本次设计。 关键词:数控编程,加工工艺,UG软件,编程,建模 Abstract Numerical co
ntrol tech
nology is a highly tech
nicalwork, especially i
n the field of mecha
nical processi
ng, the mostwidely used, so this requires the employeeswith avery high k
nowledge of machi
ni
ng process, NC programmi
ng k
nowledge a
nd
numerical co
ntrol operatio
n skills. At the begi
n
ni
ng of this desig
n, the developme
nt of NC machi
ni
ng tech
nology is explai
ned. I
n the seco
nd chapter, the part drawi
ng is a
nalyzed to u
ndersta
nd the product structure a
nd size. The third chapter mai
nly describes the parts
needed to be processed a
nd the machi
ni
ng methods, selects the parts bla
nk, selects the positio
ni
ng datum a
nd machi
ni
ng process route of the parts, a
nd selects the machi
ni
ng machi
ne tools a
nd the tools used. At the e
nd of the chapter, the cutti
ng parameters of the cutti
ng tool are determi
ned, a
nd NC machi
ni
ng process card is filled i
n. I
n the fourth chapter, the programmi
ng method of parts is selected,which is automatic programmi
ng. This paper describes how to create geometry a
nd tools i
n UG software. The
n it tells the story of Pi
ng. Surface milli
ng operatio
n, drilli
ng operatio
n, cavity milli
ng operatio
n, complete parts processi
ng. I
n the last chapter of the article, the parts are processed by simulatio
n to e
nsure that the cutti
ng path a
nd process arra Keywords: NC programmi
ng, processi
ng tech
nology, UG software, programmi
ng, modeli
ng. 目录 摘要I Abstract II 第一章绪论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3 第二章零件图纸分析4 2.1零件作用4 2.2零件的工艺分析4 第三章零件的数控加工工艺6 3.1零件加工内容分析6 3.2零件毛坯的选择6 3.3定位基准的选择7 3.4工艺路线的选择8 3.5机床的选择9 3.6刀具的选择11 3.7切削液选择12 3.8切削用量的选择13 3.9拟订数控加工工序卡片17 第四章零件的数控程序编制18 4.1编程方法的选择18 4.2软件编程操作18 4.2.1创建几何体19 4.2.2创建刀具21 4.2.3创建平面铣操作22 4.2.4创建钻孔加工操作24 4.2.5创建型腔铣加工操作26 第五章零件的数控程序编制29 5.1仿真加工29 5.2后处理程序32 总结35 致谢36 参考文献37