机械5

基于proe的CA6140车床法兰盘机械加工工艺规程及夹具设计 摘要 加工行业发展的很快，有好多非标零件需要生产，因为产品不是规则的，装夹起来不是那么的便利，所以，要专门设计一个专用夹具，这样加工才能很好的继续。 本课题研究的对象是CA6140车床法兰盘。设计任务是对其进行加工工艺分析及专用夹具设计。对工艺流程进行设计，首先把零件图画出来，对产品的构造进行分析，要明确产品需要加工多少，生产余量是多少，将坯料的图纸画出来，最后将工艺路线还有工序卡都写出来，算出来生产时候切削量是多少。 专用夹具设计钻Φ6孔钻床专用夹具。对夹具进行设计的时候，要知道怎么样对产品进行装夹，如何进行定位，如何进行夹紧。定位是有了哪些零部件，夹紧使用了哪些零部件，对产品进行定位必然会有误差出现，对它进行分析。利用Proe三维建模软件完成夹具三维实体建模，利用CAD绘图零件完成夹具的装配图，非标零件图，将的详细内容写出来。 关键词：CA6140车床；法兰盘；加工工艺；钻Φ6孔；夹具 Abstract The processi
ng i
ndustry is developi
ngvery fast. There are ma
ny
no
n-sta
ndard parts that
need to be produced. Because the products are
not regular, the clampi
ng is
not so co
nve
nie
nt. Therefore, it is
necessary to desig
n a special fixture so that the processi
ng ca
n co
nti
nuewell. The subject of this research is the CA6140 lathe fla
nge. The desig
n task is to a
nalyze the machi
ni
ng process a
nd desig
n the special fixture. Desig
n the process, first draw the parts out, a
nalyze the structure of the product, determi
ne how much the product
needs to be processed,what the productio
n margi
n is, draw the drawi
ng of the bla
nk, a
nd fi
nallywrite the process route a
nd the process card. Calculatewhat the amou
nt of cutti
ng is at the time of productio
n. Special fixture desig
n special fixture for drilli
ngΦ6 hole drilli
ng machi
ne. Whe
n desig
ni
ng the fixture,you
need to k
now how to clamp the product, how to positio
n it, a
nd how to clamp it. Positio
ni
ng iswhich parts are used,which parts are clamped, a
nd therewill be errors i
n the positio
ni
ng of the product, a
nd itwill be a
nalyzed. The Proe 3D modeli
ng software is used to complete the 3D solid modeli
ng of the fixture, a
nd the CAD drawi
ng parts are used to complete the assembly drawi
ng of the fixture, a
nd the
no
n-sta
ndard part drawi
ng is used towrite the detailed co
nte
nt of the paper. Keywords: CA6140 lathe; fla
nge; machi
ni
ng process; drilli
ngΦ6 hole; fixture 目录 摘要I Abstract II 第一章绪论1 1.1本课题研究的背景1 1.2机床夹具的组成1 1.3机床夹具的分类及概述2 第二章零件的作用及加工工艺分析4 2.1零件作用的分析4 2.2零件材料的分析4 2.3组成表面的分析5 2.4加工表面的分析5 2.5形位公差的分析5 第三章零件加工工艺规程的设计6 3.1零件生产类型的确定6 3.2零件制造形式的确定6 3.3基准的选择7 3.4加工工艺路线的设计7 3.5加工工艺装备的确定8 3.6机械加工余量的确定9 3.7确定切削用量及基本工时12 第四章专用夹具的设计27 4.1定位方案及定位元件的确定与选择27 4.2夹紧方案及夹紧元件的确定与选择28 4.3设计夹具体28 4.4选择对刀装置—钻套30 4.5计算钻削力30 4.6计算夹紧力31 4.7分析定位误差31 结论32 致谢33 参考文献34