机械5

摘要 本文开始介绍了数控技术的制造业的社会、行业背景，数控技术人才需求情况，就业方向。接下来主要针对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零件工艺分析，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、编制零件的数控加工工序卡片和刀具卡片等。最后在使用软件仿真加工零件，确定正确无误后使用后处理功能导出数控加工程序，最终完成本次设计。 关键词：数控技术、加工工艺、程序编制、仿真 Abstract This paper begi
ns to i
ntroduce the social a
nd i
ndustrial backgrou
nd of NC tech
nology ma
nufacturi
ng i
ndustry, the dema
nd for NC tech
nology perso
n
nel, employme
nt directio
n. Next, mai
nly for the part NC machi
ni
ng process desig
n, the paper first accordi
ng to the parts of the drawi
ngs a
nd tech
nical requireme
nts of a detailed NC machi
ni
ng process a
nalysis, a
nalysis of the part after the NC machi
ni
ng process desig
n,worked out the processi
ng pla
n, selected processi
ng equipme
nt, cutti
ng tools, fixtures, determi
ne the clampi
ng square. Case, cutti
ng parameters, the formulatio
n of the processi
ng seque
nce, the preparatio
n of parts of the NC machi
ni
ng process cards a
nd cutti
ng tool cards. Fi
nally, usi
ng the software to simulate the processi
ng of parts, determi
ne the correct
ness a
nd correct
ness, a
nd the
n use the post-processi
ng fu
nctio
n to derive the NC machi
ni
ng program, complete the desig
n of this paper. Keywords: NC tech
nolog、processi
ng tech
nology、programmi
ng、simulatio
n 目录 摘要I Abstract II 第一章绪论1 1.1数控车床基本操作知识1 1.1.1车床的前置刀架与后置刀架1 1.1.2坐标系2 1.2对刀基本操作3 1.3编制参考程序5 第二章零件分析9 2.1零件的结构特点分析9 2.2零件的技术要求分析9 2.3零件的结构工艺性分析9 2.4确定毛坯10 第三章确定工艺方案11 3.1表面加工方法的确定11 3.2加工顺序的安排11 3.3定位基准及装夹方式的选择11 3.4制订加工工艺方案13 3.5加工设备的选择14 3.6夹具的确定14 3.7刀具的选择15 3.8量具的选择15 3.9确定切削用量16 3.9.1背吃刀量的确定16 3.9.2切削用量的具体选择16 第四章数控加工工艺卡片拟订19 第五章程序编制20 5.1编程原点的确定20 5.2左端程序20 5.3右端程序21 第六章仿真加工23 第七章加工质量检测27 7.1加工质量检测27 7.2改善方法27 第八章设计小结28 参考文献29 致谢30