机械5

摘要 本文介绍了复杂零件数控工艺与编程加工，主要步骤有对零件图样进行分析，确定加工工艺过程；计算走刀轨迹，得出刀路轨迹；编写数控加工程序；制作控制介质；校对程序及首件试切。进行数控工艺分析时要进行多次试验以保证最优的方案。需要用到的主要机床是数控铣床和加工中心，数控铣床是现代数控技术最重要的装备。它的发展是信息技术(IT)与制造技术(MT)结合发展的结果。数控技术是现代制造业中重要的组成部分。本文内容介绍了数控加工的特点、加工工艺分析以及数控编程的一般步骤，并通过实例详细的介绍了数控加工工艺与编程的方法。 关键字：加工工艺；数控编程；数控铣床；加工中心； Abstract This paper i
ntroduces the Tech
nology a
nd programmi
ng of precisio
n a
nd complex part, the mai
n steps i
ncluded the a
nalysis the patter
n of every parts, determi
ne the processi
ng process.Calculate the trail of the k
nife, obtai
n the cutter locatio
n data of the k
nife. Compose the NC program. Ma
nufacture the co
ntrolled medium. Proofread the program a
nd the first trial cut. I
n order to e
nsure the optimal solutio
n, the experime
nt are carried out for NC process a
nalysis. The mai
n tool used to is NC milli
ng machi
ne a
nd ce
nter of machi
ni
ng, the NC milli
ng machi
ne is o
ne of the most importa
nt equipme
nt of moder
n CNC tech
nology. The developme
nt of the NC milli
ng machi
ne is the result of the developme
nt of IT a
nd MT. The NC tech
nology is the importa
nt part of moder
n ma
nufacturi
ng i
ndustry. P roe is based o
n the moder
n ma
nufacturi
ng tech
nology. This paper i
ntroduces the characteristic of the NC machi
ne machi
ni
ng process a
nalysis a
nd the ge
neral steps of NC programmi
ng.A
nd the method of processi
ng tech
nology a
nd programmi
ng of NC is i
ntroduced through examples. Keywords: processi
ng tech
nic；NC programmi
ng；NC milli
ng machi
ne；machi
ni
ng ce
nter； 目录 摘要2 Abstract 3 1绪论4 1.1本课题研究的背景4 1.2数控设备的简介4 1.3本研究的目的与意义4 1.4数控加工工艺与普通加工工艺的区别及特点5 2零件图工艺性分析6 2.1零件介绍6 2.2零件加工工艺性分析7 2.3零件的技术要求分析7 2.4材料分析7 3零件的加工工艺分析9 3.1毛胚的选择9 3.2粗基准的选择10 3.3精基准的选择10 3.4加工阶段的划分10 3.5工序余量的安排11 3.6工序的划分和加工工艺路线的确定11 3.7选择并确定工艺装备12 3.7.1数控机床的选择12 3.7.2夹具的选择12 3.7.3刀具的选择14 3.7.4量具的选择15 4工艺参数选择及制定工艺文件17 4.1转速进给参数的选择17 4.2机床实际参数21 4.3制定工艺文件22 4.4工序卡22 5加工程序编制23 5.1数控编程23 5.3仿真加工26 致谢30 参考文献31