摘要 我们国家现在机械化发展的很快，所以需要对现有的技术，装备进行提升跟改造，并且还要将一些新的材料，新的能源，新的技术等使用到生产里面去。专用夹具就是其中一个重要的组成部分。 这篇设计的零件是摇臂轴座，按照要求需要对其进行工艺和铣夹具的设计。随着非标零件越来越多，以及考虑现实生产的需求，通用夹具是满足不了，并且使用通用夹具对产品进行装夹，效率比较差，劳动强度也很强，生产产品质量不好，并且还要进行划线。 本文在完成工艺规程设计的基础上，还对零件图50下端面进行了铣床专用夹具设计。专用夹具的设计既要确定定位方案，夹紧方案，还有对刀方案，设计出夹具体，分析生产精度等。由此生产出来的零件，其效率较高，成本少。 关键词：专用夹具、摇臂轴座、工艺、铣夹具、50下端面 Abstract Our cou
ntry is
now developi
ng mecha
nizedvery quickly, sowe
need to upgrade a
nd re
novate existi
ng tech
nologies a
nd equipme
nt, a
nd also use some
new materials,
new e
nergy,
new tech
nologies, etc. i
nto productio
n. Special fixtures are a
n importa
nt part of this. The part desig
ned i
n this paper is a rocker shaft seat,which is desig
ned for the process a
nd milli
ng fixture as required. With more a
nd more
no
n-sta
ndard parts, a
nd co
nsideri
ng the
needs of real productio
n, u
niversal fixtures ca
n
not meet, a
nd the use of u
niversal fixtures to clamp the product, the efficie
ncy is relatively poor, the labor i
nte
nsity is alsovery stro
ng, the quality of the productio
n products is
not good, a
nd Also u
nderli
ne. O
n the basis of the desig
n of the process specificatio
n, the special fixture desig
n of the milli
ng machi
ne is also carried out o
n the lower e
nd of the part drawi
ng 50. The desig
n of the special fixture is to determi
ne the positio
ni
ng scheme, the clampi
ng scheme, a
nd the tool setti
ng scheme, desig
n the clip specific, a
nd a
nalyze the productio
n precisio
n. The parts thus produced are more efficie
nt a
nd less costly. Keywords: special fixture, rocker shaft seat, process, milli
ng fixture, 50 lower e
nd 目录 摘要I Abstract II 前言1 1零件的分析2 1.1零件的作用分析2 1.2零件材料的分析2 1.3零件组成表面的分析3 1.4零件加工表面的分析3 1.5零件形位公差的分析3 2机械加工工艺规程设计4 2.1零件生产类型的确定4 2.2零件制造形式的确定4 2.3基准的选择5 2.4加工工艺路线的确定5 2.5加工设备、夹具、刀具及量具的确定7 2.6机械加工余量的确定7 2.7切削用量及基本工时的确定9 3专用夹具的设计25 3.1确定定位方案，选择定位元件25 3.1.1确定定位方案25 3.1.2选择定位元件25 3.2确定夹紧方案，选择夹紧元件26 3.2.1确定夹紧方案26 3.2.2选择夹紧元件26 3.3夹具体的设计26 3.4对刀块的选择27 3.5铣削力及夹紧力计算27 3.6定位误差分析28 结论29 致谢30 参考文献31