摘要 悬置支架设计一共分三部分，现分述如下：悬置支架的工艺分析、加工工艺、铣左端面的夹具设计。 悬置支架的工艺分析，首先分析悬置支架结构特点，接着编写工艺规程，查找各个加工表面的加工余量，绘制悬置支架毛坯图，工序卡图，最后对各加工工序的切削用量、进给量、切削速度和工时等进行计算。 悬置支架铣左端面的夹具设计，首先依据工艺规程、工件图及六点定位原理，采用的定位元件为：支承板和A型固定式定位销。夹紧方案采用六角螺母、圆垫圈、螺杆、垫块、B型U形压板和六角法兰面螺母等组成的螺旋夹紧机构夹紧工件。 关键词：悬置支架；工艺分析；夹具设计 Abstract The graduatio
n desig
n of the suspe
nsio
n bracket is divided i
nto three parts, which are described as follows: process a
nalysis, processi
ng tech
nology, a
nd fixture desig
n for milli
ng the left e
nd face of the suspe
nsio
n bracket. For the process a
nalysis of the suspe
nsio
n bracket, first a
nalyze the structural characteristics of the suspe
nsio
n bracket, the
n prepare the process procedure, fi
nd the machi
ni
ng allowa
nce of each machi
ni
ng surface, draw the bla
nk drawi
ng of the suspe
nsio
n bracket a
nd the process card diagram, a
nd fi
nally calculate the cutti
ng amou
nt, feed rate, cutti
ng speed a
nd worki
ng hours of each machi
ni
ng process. The fixture desig
n for milli
ng the left e
nd face of the suspe
nsio
n bracket is based o
n the process specificatio
n, workpiece drawi
ng a
nd six poi
nt positio
ni
ng pri
nciple. The positio
ni
ng eleme
nts used are: support plate a
nd A-type fixed positio
ni
ng pi
n. The clampi
ng scheme adopts a screw clampi
ng mecha
nism composed of hexago
n
nut, rou
nd washer, screw, cushio
n block, B-shaped U-shaped pressi
ng plate a
nd hexago
n fla
nge
nut to clamp the workpiece. Key words: suspe
nsio
n bracket; Process a
nalysis; Fixture desig
n 目录 摘要I Abstract II 第1章绪论2 1.1课题研究的意义及现状2 1.2夹具领域的发展方向2 1.3课题的主要研究内容4 第2章零件分析5 2.1零件的主要作用5 2.2分析以及选择材料5 2.3工艺分析5 2.4主要的加工表面6 第3章工艺规程的设计7 3.1确定零件的生产类型7 3.2确定毛坯7 3.3基准的选择8 3.4主要的加工工序的工艺路线安排9 3.5加工设备与工艺设备的选择10 3.6切削用量10 第4章悬置支架铣床夹具设计25 4.1选择定位基准25 4.2确定夹具的结构以及夹紧机构的方案25 4.3设计整体夹具装配图25 4.4切削力的计算26 4.5分析与计算误差26 4.6定向键与对刀装置设计27 结论29 参考文献30