机械5

摘要 数控车床技术在当今机械制造业中的重要地位和巨大效益，已经显示了其在国家基础工业现代化生产中的战略性作用，而且已成为了传统机械制造业实现自动化、柔性化、集成化生产的重要手段和标志。 本次设计内容为车削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
numerical co
ntrol lathe tech
nology i
n the machi
nery ma
nufacturi
ng i
ndustry today is importa
nt a
nd great be
nefit, has show
n its strategic role i
n the Natio
nal basic i
ndustry moder
nizatio
n productio
n, a
nd has become the traditio
nal machi
nery ma
nufacturi
ng i
ndustry to achieve automatio
n, flexibility, i
ntegratio
n of the importa
nt mea
ns a
nd symbol of productio
n. The co
nte
nt of this desig
n is NC machi
ni
ng tech
nology a
nd programmi
ng processi
ng of tur
ni
ng parts. The characteristics of NC lathe machi
ni
ng, the process a
nalysis a
nd the process of NC programmi
ng, a
nd the fixture determi
natio
n are i
ntroduced. 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 目录1 1绪论3 1.1国内外数控车床研究现状3 1.2数控车床分类3 1.3数控车床特点4 2零件分析6 2.1零件图6 2.2零件图分析6 2.3确定加工方法7 2.4加工方案设计7 3工艺设计9 3.1定位基准的选择9 3.2定位基准的选择原则9 3.3确定零件的定位基准9 3.4装夹方式的选择9 3.5确定合理的装夹方式10 3.6选择数控刀具的原则11 3.7选择数控车削用刀具12 3.8设置刀点和换刀点12 3.9确定切削用量14 3.10毛坯选择19 3.11轴类零件的预备加工19 4零件的三维及仿真21 4.1 Mastercam软件简介21 4.2零件三维造型设计22 4.3左端仿真加工过程24 4.4右端仿真加工过程35 4.5后处理36 总结38 参考文献39 致谢40