摘要 这次设计的是曲柄锥销孔的加工，包括零件图、毛坯图、装配图各一张，机械加工工艺过程卡片一张与工序卡片一张，并借助PROE模拟仿真。首先我们要熟悉零件和了解其作用，然后，根据零件的性质和零件图上各端面的粗糙度确定毛坯的尺寸和机械加工余量。最后拟定曲柄的工艺路线图，制定该工件的夹紧方案，画出夹具装配图。 机械制造课程设计,是在学完机械制造工艺学及夹具设计原理课程，经过生产实习取得感性知识后进行的一项教学环节；在老师的指导下，要求在设计中能初步学会综合运用以前所学过的全部课程，并且独立完成的一项工程基本训练。同时，也为以后搞好设计打下良好基础。 关键词：锥销孔工艺过程机械加工余量 Abstract This desig
n is the processi
ng of the cra
nk taper pi
n hole, i
ncludi
ng o
ne part drawi
ng, o
ne bla
nk drawi
ng a
nd o
ne assembly drawi
ng, o
ne machi
ni
ng process card a
nd o
ne process card, a
nd simulatio
n with the help of proe. First of all, we should be familiar with the parts a
nd u
ndersta
nd their fu
nctio
ns. The
n, accordi
ng to the properties of the parts a
nd the rough
ness of each e
nd face o
n the part drawi
ng, we ca
n determi
ne the size of the bla
nk a
nd the machi
ni
ng allowa
nce. Fi
nally, the process route of the cra
nk is draw
n up, the clampi
ng scheme of the workpiece is made, a
nd the fixture assembly drawi
ng is draw
n. The course desig
n of mecha
nical ma
nufacturi
ng is a teachi
ng li
nk after lear
ni
ng the courses of mecha
nical ma
nufacturi
ng tech
nology a
nd fixture desig
n pri
nciples a
nd obtai
ni
ng perceptual k
nowledge through productio
n practice; U
nder the guida
nce of the teacher, it is required to prelimi
narily lear
n to comprehe
nsively apply all the previous courses i
n the desig
n a
nd i
ndepe
nde
ntly complete a basic e
ngi
neeri
ng trai
ni
ng. At the same time, it also lays a good fou
ndatio
n for the future graduatio
n desig
n. Key words: taper pi
n hole process machi
ni
ng allowa
nce 目录 1.零件的工艺分析5 2.机械加工工艺设计6 2.1毛坯的制造形式6 2.2基面的选择6 3.制订机械加工工艺路线7 3.1表面加工方法的确定7 3.2加工阶段的划分8 3.3工序顺序的安排8 3.4确定工艺路线9 3.4.1加工设备和工艺设备9 4.机械加工余量、工序尺寸及公差的确定10 4.1锥销孔φ5的工序尺寸10 4.2确定切削用量及时间定额10 4.2.1主轴转速的确定10 4.2.2时间定额的计算： 10 4.2.3其它时间计算11 5.夹具设计12 5.1夹具选择12 5.2夹具设计13 5.2.1定位分析13 5.2.2切削力及夹紧力的计算13 5.3夹具操作说明15 5.4.确定导向装置15 6.机床夹具设计体会与展望16 参考文献18