机械5

摘要 现代的CAD/CAM都是建立在数控技术之上的。现代数控加工技术知识是现代机械专业学生必需掌握的。在数控加工过程中，要考虑到零件加工工艺路线的安排、加工机床型号的选择、切削刀具的选择、零件加工的定位装夹及数控程序的编制等一系列因素的影响。所涉及到的知识面非常广阔，基本将我们在大学几年里所学知识综合运用起来了所以通过这次设计不仅是一次对我们大学几年来的知识的运用，也是对我们的考验。 本次设计内容为零件数控加工工艺及编程加工。具体介绍了数控车床加工的特点、加工工艺分析以及数控编程加工过程，以及夹具的确定等等。 关键词：数控车床；数控编程；数控加工工艺 Abstract The moder
n CAD/CAM is based o
n the
numerical co
ntrol tech
nology. Moder
n CNC machi
ni
ng tech
nology k
nowledge is the moder
n mecha
nical professio
nal stude
nts must master. I
n NC machi
ni
ng process, co
nsideri
ng the compo
ne
nts processi
ng craft route arra
ngeme
nt, processi
ng machi
ne type selectio
n, cutti
ng tool selectio
n, machi
ni
ng positio
ni
ng device clamp a
nd NC program compili
ng a
nd a series of factors. Very broad ra
nge of k
nowledge i
nvolved,willwe i
n the u
niversity threeyears have lear
ned k
nowledge comprehe
nsive up so throMastercamh this graduatio
n desig
n is
not o
nly o
ne of our u
niversity threeyears of k
nowledge use, but also for our test. This desig
n co
nte
nt is the part
numerical co
ntrol processi
ng craft a
nd the programmi
ng process. This paper i
ntroduces the characteristics of CNC lathe processi
ng, processi
ng tech
nology a
nalysis a
nd NC programmi
ng process, aswell as fixture a
nd so o
n. Keywords: CNC lathe; NC programmi
ng; NC Machi
ni
ng Tech
nology 目录 摘要I Abstract II 1绪论1 1.本设计的目的及内容1 2.课题背景知识1 2工艺设计2 2.1加工方案的确定2 2.2装夹方案的确定4 2.3加工工序的划分5 2.4加工刀具的选择8 2.5切削用量的确定9 3数控程序编制10 3.1编程理论依据10 3.2编程指令的选择12 3.3数控程序编制14 4零件的三维及仿真15 4.1 Mastercam软件简介15 4.2零件三维造型设计16 4.3仿真加工过程19 4.3.1配合件1仿真加工19 4.3.2配合件2仿真加工31 4.4后处理33 总结34 参考文献35 致谢36