机械5

摘要 本根据数控机床的特点，针对具体的零件，进行了UG建模。首先根据箱壳零件的图纸及技术要求，对该零件进行了详细的数控加工工艺分析，依据分析的结果，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、进给路线，编制了零件的数控加工工序卡片和刀具卡片等。最后，综合运用NXUG软件进行自动编程，编制了该零件的数控程序。通过整个工艺的过程的制定，充分体现了数控设备在保证加工精度，加工效率，简化工序等方面的优势。 关键词：数控加工工艺设计自动编程 Abstract This paper accordi
ng to the characteristics of CNC machi
ne tools for specific parts of UG modeli
ng. Firstly, accordi
ng to the drawi
ngs a
nd tech
nical requireme
nts of box shell parts, the parts of the CNC machi
ni
ng process a
nalysis i
n detail, based o
n the a
nalysis result, the parts of NC machi
ni
ng process desig
n, develop processi
ng scheme, selectio
n the processi
ng equipme
nt, tooli
ng, fixture, determi
ne the clampi
ng scheme, cutti
ng, maki
ng theworki
ng order, the feed li
ne, the NC machi
ni
ng process card a
nd tool card. Fi
nally, the i
ntegrated use of NXUG software for automatic programmi
ng, the NC program of the part through thewhole process. The developme
nt of the process fully embodies the adva
ntages of NC equipme
nt i
n e
nsuri
ng the machi
ni
ng accuracy, processi
ng efficie
ncy, simplifyi
ng the process a
nd so o
n Keywords: NC machi
ni
ng process desig
n automatic programmi
ng 目录 摘要I Abstract I 目录II 1绪论4 1.1本课题研究的背景及来源4 1.1.1课题的背景4 1.1.2课题来源5 1.2设计的目的与意义5 1.3所要完成的内容与要求5 2零件图分析7 2.1零件零件图7 2.2零件零件图分析7 2.3毛坯选择7 3零件的数控加工工艺设计9 3.1定位基准选择9 3.2表面加工方法的选择9 3.3工序与工步的划分9 3.4加工设备的选用10 3.5夹具的选择11 3.6刀具选择11 3.7切削参数选择12 3.8工艺卡片的填写15 4基于UG的三维造型16 4.1进入页面16 4.2三维造型操作16 5零件的数控加工程序编制21 5.1零件编程方法选择21 5.2零件数控加工程序的编写21 5.2.1进入UG加工模块21 5.2.2创建程序22 5.2.3创建刀具22 5.2.4创建几何体22 5.2.5铣削编程参数设置24 5.3零件的仿真27 5.4零件的后处理程序30 总结34 致谢35 参考文献36