机械5

牛头刨床推动架零件的加工工艺及夹具设计 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B6065牛头刨床推动架。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。 专用夹具设计有钻M8-6H螺纹孔。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，需要画的图纸有夹具的装配图，非标零件图，将的详细内容写出来。 关键词：CB6065牛头刨床；推动架；加工工艺；钻M8-6H螺纹孔； Abstract With the rapid developme
nt of the processi
ng i
ndustry, there are ma
ny
no
n-sta
ndard parts to be produced. Because the products are
not regular a
nd the clampi
ng is
not so co
nve
nie
nt,we should desig
n a special fixture so that the processi
ng ca
n co
nti
nuewell. The research object of this project is B6065 shaper drivi
ng frame. The desig
n task is to a
nalyze the processi
ng tech
nology a
nd desig
n the special fixture. To desig
n the tech
nological process, first draw the parts, a
nalyze the structure of the product, make clear how much the product
needs to be processed a
ndwhat is the productio
n allowa
nce, draw the bla
nk drawi
ng, a
nd fi
nallywrite out the process route a
nd process card, a
nd calculate the cutti
ng amou
nt duri
ng productio
n. The special fixture is desig
ned to drill m8-6h threaded hole. Whe
n desig
ni
ng the fixture,we should k
now how to clamp the product, how to locate it a
nd how to clamp it. Positio
ni
ng refers towhich parts a
nd compo
ne
nts are used for clampi
ng, a
nd therewill be errors i
n product positio
ni
ng. To a
nalyze it,we
need to draw drawi
ngs i
ncludi
ng fixture assembly drawi
ngs a
nd
no
n-sta
ndard parts drawi
ngs, a
ndwrite out the detailed co
nte
nts of the paper. Keywords: cb6065 shaper; pushi
ng frame; processi
ng tech
nology; drilli
ng m8-6h threaded hole; 目录 摘要II 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4 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11 第四章钻M8-6H螺纹孔专用夹具的设计23 4.1定位方案及定位元件的确定与选择23 4.2夹紧方案及夹紧元件的确定与选择23 4.3设计夹具体24 4.4选择对刀装置—钻套24 4.5计算钻削力24 5.6计算夹紧力24 4.7分析定位误差25 结论26 致谢27 参考文献28