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。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,用UG软件画出三维图形。 然后是通过应用UG软件、机械设计资料和所学的知识对机械零件进行工艺分析、三维建模、数控加工编程及加工。工艺分析是设计产品重点；三维建模、数控加工编程是UG软件的重点所在，具有操作简单和修改方便等优点；加工是对所设计的产品进行编程仿真加工。 关键词: UG软件,工艺分析,建模,编程,加工 Abstract The
numerical co
ntrol tech
nology is a highly tech
nicalwork, especially i
n the field of mecha
nical processi
ng is the mostwidely used, so it requires employeeswith high k
nowledge of mecha
nical processi
ng tech
nology, CNC programmi
ng k
nowledge a
nd skills. The desig
n task is the machi
ni
ng process desig
n a
nd programmi
ng a
nd processi
ng, the drawi
ng software AutoCADwill be out of the picture parts of the two-dime
nsio
nal, the
n use the UG software to draw three-dime
nsio
nal graphics. The
n through the applicatio
n of UG software, mecha
nical desig
n data a
nd k
nowledge of mecha
nical parts for process a
nalysis, 3D modeli
ng, NC programmi
ng a
nd machi
ni
ng. Process a
nalysis is focus o
n product desig
n; 3D modeli
ng, NC programmi
ng is the key of UG software, has the adva
ntages of simple operatio
n a
nd easy modificatio
n; processi
ng is to detect the desig
n of products. Keywords: UG software, process a
nalysis, modeli
ng, programmi
ng, processi
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2 第二章零件图纸分析4 2.1零件图分析4 2.2零件的工艺分析4 第三章零件的数控加工工艺5 3.1零件加工内容分析5 3.2零件毛坯的选择5 3.3定位基准的选择6 3.4工艺路线的选择6 3.5机床的选择7 3.6刀具的选择9 3.7切削液选择10 3.8切削用量的选择11 3.9拟订数控加工工序卡片13 第四章零件的数控程序编制14 4.1编程方法的选择14 4.2软件编程操作14 4.2.1创建几何体14 4.2.2创建刀具17 4.2.3创建平面铣操作17 4.2.4创建钻孔加工操作19 4.2.5创建型腔铣加工操作21 第五章零件的数控加工仿真23 5.1仿真加工23 5.2后处理程序24 总结29 致谢30 参考文献31