机械5

摘要 加工中心是现代加工车间最重要的装备，可通过NX软件三维造型完成数控编程并导入加工中心进行加工。现代的NX、制造技术，都是建立在数控技术之上的。掌握现代数控技术知识是现代数控技术专业学生必不可少的。 本次设计包括四章，第一章介绍了数控加工技术国内外发展现状；第二章介绍了零件，第三章介绍包括毛坯分析、机床的选择、加工顺序的确定、刀具的选择等；第四章基于UG的NC编程加工。我希望能通过这次设计对自己未来将从事的工作进行一次适应性训练，从中锻炼自己分析问题、解决问题的能力。由于个人能力所限，设计尚有许多不足之处，恳请老师给予指导。 关键词：数控编程；工艺分析；数控加工； Abstract The machi
ni
ng ce
nter is the most importa
nt moder
n processi
ng pla
nt equipme
nt, through the NX software to complete the three-dime
nsio
nal modeli
ng of NC programmi
ng a
nd machi
ni
ng ce
nter imported for processi
ng. Moder
n NX ma
nufacturi
ng tech
nology, are built o
n the tech
nology i
n the NC. Master moder
n CNC tech
nology k
nowledge is esse
ntial to professio
nal stude
nts of moder
n CNC tech
nology. This graduatio
n desig
n i
ncludes four chapters, the first chapter i
ntroduces the curre
nt situatio
n of the developme
nt of CNC machi
ni
ng tech
nology at home a
nd abroad; the seco
nd chapter i
ntroduces the parts, the third chapter i
ncludi
ng bla
nk a
nalysis, machi
ne tool selectio
n, determi
ne the processi
ng order, tool selectio
n; the fourth chapter is based o
n the NC programmi
ng a
nd processi
ng of UGI hope that through the desig
n of a
n adaptive trai
ni
ng of their futurework, exercise itself to a
nalyze the questio
n, the ability to solve problems. Due to the limited ability, there are still ma
ny deficie
ncies i
n the desig
n, ask the teacher to give guida
nce. Keywords: Numerical co
ntrol programmi
ng; process a
nalysis; NC machi
ni
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 第二章零件图分析3 2.1零件图3 2.2零件的结构特点分析3 2.3零件图的技术要求3 第三章零件的数控加工工艺4 3.1毛坯的选择4 3.1.1确定毛坯的类型4 3.1.2确定尺寸的确定4 3.2定位基准及工艺路线的选择5 3.3.1定位基准的选择5 3.3.2工艺路线的安排5 3.3夹具的选择6 3.4刀具的选择6 3.5切削液选择7 3.6机床的选择8 3.7量具的使用表8 3.8切削用量的选择9 3.9填写数控加工工序卡11 第四章零件的数控程序编制13 4.1编程方法的选择13 4.2软件编程操作13 4.2.1进入加工模块13 4.2.2创建几何体13 4.2.3设置几何体14 4.2.4设置刀具15 4.2.5型腔铣加工操作15 4.2.6曲面加工自动编程17 4.2.7其余表面加工刀路图19 4.2.8钻孔加工自动编程20 4.3加工仿真22 4.4后处理23 总结24 致谢25 参考文献26