机械5

摘要 到目前为止，夹具仍是重要的机电工具，用户只需要按品种，选择购买规格。根据夹具的范围，可分为一般固定、可调式固定和专用夹具。虽然工装夹具和产品息息相关，需要根据产品的不同做出改变，通常模具的特殊性质已经成为一个独立的行业;夹具是先进的当代设计的组合和符合节能原则。本文首先对离合器齿轮零件进行了机械加工工艺分析及规程的设计，然后对4-φ5mm孔进行了专用的钻床夹具设计。 关键词：离合器齿轮；机械加工；加工工艺；专用夹具 Abstract Up to
now, the fixture is still a
n importa
nt mecha
nical a
nd electrical tool, users o
nly
need to choose the purchase specificatio
n accordi
ng to the variety. Accordi
ng to the scope of fixture, it ca
n be divided i
nto ge
neral fixture, adjustable fixture a
nd special fixture. Although the fixture is closely related to the product a
nd
needs to be cha
nged accordi
ng to the differe
nt products, the special
nature of the mold has become a
n i
ndepe
nde
nt i
ndustry; the fixture is a combi
natio
n of adva
nced co
ntemporary desig
n a
nd co
nforms to the pri
nciple of e
nergy savi
ng. I
n this paper, firstly, the machi
ni
ng process a
nalysis a
nd specificatio
n desig
n of clutch gear parts are carried out, a
nd the
n the special jig desig
n of drilli
ng machi
ne for 4 - φ 5mm hole is carried out. Key words: clutch gear; machi
ni
ng; processi
ng tech
nology; special fixture 目录 摘要I Abstract II 1绪论1 2零件的工艺分析及生产类型的确定2 2.1零件的作用2 2.2零件的工艺性2 2.3零件的生产类型3 3选择毛坯，确定毛坯尺寸，设计毛坯-毛坯零件图4 3.1选择毛坯4 3.2确定机械加工余量4 3.3确定毛坯尺寸4 3.4确定毛坯尺寸公差4 3.5绘制毛坯图5 4选择加工方法，制定工艺路线7 4.1定位基准的选择7 4.2零件表面加工方法的选择7 4.3制订工艺路线8 5工序设计10 5.1选择加工设备与工艺装备10 5.2确定工序尺寸11 6确定切削用量及基本时间13 7钻4-φ5mm孔夹具设计18 7.1问题提出18 7.2夹具的设计18 7.2.1切削力及夹紧力的计算18 7.2.2钻孔与工件之间的切屑间隙21 7.2.3钻模板22 7.2.4定位误差的分析22 7.2.5钻套、衬套、钻模板设计与选用23 7.2.6确定夹具体结构和总体结构25 总结26 参考文献28 致谢29