机械5

目录 摘要1 Abstract 1 第1章绪论2 1.1数控加工技术国内外现状2 1.2本设计研究的目的与意义2 1.3数控加工工艺与普通加工工艺的区别及特点2 1.4数控加工工艺基本特点2 第2章数控加工工艺设计4 2.1加工方案的确定4 2.2装夹方案的确定6 2.3加工工序的划分7 2.4加工刀具的选择11 2.5切削用量的确定12 2.6数控加工工艺卡片的拟定12 第3章轴零件数控程序编制13 3.1编程理论依据13 3.2编程指令的选择15 第4章轴零件数控加工仿真19 4.1仿真加工软件简介19 4.2仿真加工过程20 4.2.1外圆仿真刀路设计20 4.2.2外圆切槽仿真刀路设计22 4.2.3外螺纹仿真刀路设计26 总结29 参考文献30 致谢31 摘要 现代的CAD/CAM都是建立在数控技术之上的。掌握现代数控加工技术知识是现代机械专业里面必不可少的。在数控加工过程中，从零件的设计图纸到零件成品的合格。不仅要考虑到数控程序的编制，还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等一系列因素的影响。在开始编程前，必须要对零件设计图纸和技术要求进行详细的数控加工工艺分析。来最终确定哪些是零件的技术关键，哪些是数控加工的难点，以及程序的编制难易程度。 本次设计内容为车削轴类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 Moder
n CAD/CAM is based o
n
numerical co
ntrol tech
nology. Masteri
ng the k
nowledge of moder
n NC machi
ni
ng tech
nology is esse
ntial i
n moder
n mecha
nical e
ngi
neeri
ng. I
n the process of NC machi
ni
ng, From the desig
n drawi
ng of the part to the qualificatio
n of the fi
nished product of the part. Not o
nly the preparatio
n of the NC program, but also the arra
ngeme
nt of the machi
ni
ng process route of the part, the selectio
n of the type of the machi
ne tool, the choice of the cutti
ng tool, The i
nflue
nce of a series of factors, such as positio
ni
ng, clampi
ng, etc. Before the begi
n
ni
ng of programmi
ng, it is
necessary to carry out detailed NC machi
ni
ng process a
nalysis o
n the part desig
n drawi
ngs a
nd tech
nical requireme
nts. Fi
nally, it is
necessary to determi
newhich parts are the tech
nical key a
ndwhich are the
number The difficulty of co
ntrolli
ng processi
ng a
nd the difficulty of programmi
ng. The co
nte
nt of this desig
n is NC machi
ni
ng tech
nology a
nd programmi
ng machi
ni
ng of tur
ni
ng shaft parts. The characteristics of NC lathe machi
ni
ng, machi
ni
ng process a
nalysis, NC programmi
ng machi
ni
ng process a
nd fixture determi
natio
n are i
ntroduced i
n detail. Keywords: NC lathe; NC programmi
ng; NC machi
ni
ng tech
nology