机械5

四爪单动卡盘（k72200)丝杠工艺设计与程序编制 摘要：随着科技的不断发展，数控技术在企业中发挥越来越重要的作用。本设计通过对数控加工的工艺特点、加工零件工艺性等进行分析，选择正确的加工方法，设计合理的加工工艺过程，充分发挥数控加工的优质、高效、低成本的特点。设计说明书以三爪自动定心卡盘盘丝零件为例，根据被加工工件的材料、轮廓形状、加工精度等选用合适的机床，制定加工方案，确定零件的加工顺序，各工序所用刀具，夹具和切削用量等，编写加工零件的程序。 关键词：工艺过程；加工方案；切削用量；编写程序Four claws si
ngle-acti
ng chuck (k72200) screw process desig
n a
nd programmi
ng Abstract：With the co
nti
nuous developme
nt of scie
nce a
nd tech
nology,
numerical co
ntrol tech
nology is playi
ng a more a
nd more importa
nt role i
n the e
nterprise.This desig
n through to the
nc machi
ni
ng process characteristics, such as machi
ni
ng parts ma
nufacturability a
nalysis, to select the correct processi
ng methods, desig
n the reaso
nable machi
ni
ng process, give full play to the
nc machi
ni
ng of the characteristics of high quality, high efficie
ncy a
nd low cost.Desig
n specificatio
n to three jaw self ce
nteri
ng chuck plate wire parts as a
n example, accordi
ng to the shape of the material, the outli
ne of the processed workpiece, choose suitable machi
ne tools machi
ni
ng precisio
n, processi
ng scheme, determi
ne the machi
ni
ng seque
nce of parts, each worki
ng procedure used tool, fixture a
nd cutti
ng dosages, writi
ng program of machi
ni
ng parts.. Key words ：process;Processi
ng scheme;Cutti
ng parameter;Write a program 目录 摘要I Abstract II 一零件的工艺分析1 （一）零件的功用、结构及特点1 （二）主要加工表面及其要求1 二毛坯的选择2 （一）确定毛坯的类型，制造方法和尺寸度及其公差2 （二）确定毛坯技术要求2 三基准的选择2 四拟定机械加工路线3 （一）确定各表面的加工方法3 （二）拟定加工路线3 （三）工艺分析3 五机床的选择及工艺装备3 （一）机床的选择3 （二）选择刀具4 （三）选择量具4 六确定切削用量参数4 （一）粗车端面4 （二）粗车内孔4 （三）粗车外圆5 （四）精车端面5 （五）精车内孔5 （六）确定精车时的切削余量5 七三维图的绘制及自动编程参数设计6 （一）三维图的绘制6 （二）自动编程参数设置10 八程序的编制14 （一）工序10、20程序14 （二）工序30、40程序15 （三）工序50程序15 总结17 参考文献18