机械5

摘要 数控技术是技术性极强的工作，本文为零件数控加工工艺设计，首先根据零件的图纸及技术要求进行了详细的数控加工工艺分析，分析过后对该零件进行了数控加工工艺设计，拟定了加工方案，选择了加工设备、加工刀具、夹具，确定了装夹方案、切削用量，制定了加工顺序、编制了零件的数控加工工序卡片和刀具卡片等。最后，详细说明了如何运用UG自动编程编制该零件的数控程序。 关键词:铣削、CAD/CAM、UG、数控加工 Abstract：Numerical co
ntrol tech
nology is a highly tech
nicalwork, this paper is part of the NC machi
ni
ng process desig
n, the paper first accordi
ng to the part drawi
ng a
nd tech
nical requireme
nts of the detailed NC machi
ni
ng process a
nalysis, After a
nalysis, the NC machi
ni
ng process desig
n of the part is carried out, the machi
ni
ng scheme is draw
n up, the machi
ni
ng equipme
nt, cutti
ng tools a
nd fixtures are selected, the clampi
ng scheme is determi
ned, the cutti
ng parameters are determi
ned, a
nd the machi
ni
ng seque
nce isworked out. The NC machi
ni
ng process cards a
nd tool cards of the parts areworked out. Fi
nally, how to use UG automatic programmi
ng to program the NC program of this part is explai
ned i
n detail. Keywords: milli
ng, CAD/CAM, UG,
nc machi
ni
ng 目录 【摘要】 1 1绪论4 1.1数控加工技术国内外发展现状4 1.1.1我国数控技术发展现状4 1.1.2与国外的差距4 1.2数控加工技术国内外现状4 2工艺性分析6 2.1零件介绍6 2.2零件加工工艺性分析7 3毛坯与工艺装配的选择8 3.1毛坯的选择8 3.1.1确定毛坯的类型8 3.1.2确定毛坯的余量8 3.2定位基准选择8 3.3工序的划分和加工工艺路线的确定9 3.3.1加工方法的选择9 3.3.2工序的划分9 3.4选择并确定工艺装备10 3.4.1数控机床的选择10 3.4.2夹具的选择12 3.4.3量具的使用表12 3.4.4刀具的选择13 4工艺参数选择及工艺卡片填写15 4.1切削用量的选择原则15 4.2切削用量的选择15 4.3工艺卡片填写16 5加工程序编制及仿真加工17 5.1数控编程的分类17 5.2数控编程17 5.2.1创建几何体18 5.2.2创建刀具20 5.2.3型腔铣加工设置20 5.2.4钻孔加工设置23 5.3仿真加工及后处理26 总结32 致谢33 参考文献34