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。接下来主要针对铣零件数控加工工艺设计，首先根据铣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CAXA自动编程编制该零件的数控程序，在最后使用仿真功能仿真加工零件，确定正确无误后使用后处理功能导出数控加工程序，完成本次设计。 关键词：铣；加工工艺；数控；程序 Abstract The begi
n
ni
ng of this article i
ntroduced the
numerical co
ntrol tech
nology of ma
nufacturi
ng i
ndustry society, i
ndustry backgrou
nd, NC tech
nology tale
nt dema
nd, employme
nt directio
n. The
next major
needle bottle ope
ner parts of NC machi
ni
ng process desig
n. Firstly, accordi
ng to the bottle ope
ner parts drawi
ngs a
nd tech
nical requireme
ntswere detailed a
nalysis of NC machi
ni
ng process, after the a
nalysis of the partswere CNC machi
ni
ng process desig
n, process scheme isworked out, select the processi
ng equipme
nt, tooli
ng fixture to determi
ne the clampi
ng scheme, cutti
ng dosage, formulated the processi
ng seque
nce, preparatio
n of the parts CNC machi
ni
ng order card a
nd tool cards. Fi
nally, a detailed descriptio
n of the how to use CAXA automatic programmi
ng The parts of the
numerical co
ntrol program, i
n the e
nd the use of simulatio
n fu
nctio
ns of the processi
ng parts, to determi
ne the correct use of the post-processi
ng fu
nctio
n of the NC machi
ni
ng program, complete the desig
n of this paper. Keywords: Five a
ngle plate of CNC；machi
ni
ng；program 目录 摘要I Abstract II 目录III 1数控技术的前景4 1.1制造业的社会、行业背景4 1.2数控机床的发展趋势4 1.3研究内容和目的6 2零件的加工工艺分析7 2.1零件图工艺分析7 2.2加工方法的选择及工序划分8 2.2.1加工方法的选择8 2.2.2工序的划分8 2.3加工方案的确定10 2.4数控铣削加工工艺卡片的拟定10 2.5机床和夹具的选择11 2.5.1机床的选择11 2.5.2夹具选择11 2.6刀具的选择12 2.7切削用量的选择14 2.7.1背吃刀量的选择14 2.7.2主轴转速的确定15 2.8工件对刀点和换刀点的确定16 3数控加工程序的编制及定位17 3.1数控铣床编程特点17 3.2工件定位18 3.3程序的编制21 4机加工的误差及总结22 4.1机加工的误差22 4.2总结23 5 CAXA模拟仿真24 5.1铣零件的毛坯设置24 5.2创建加工方法25 致谢31 参考文献32