机械5

摘要 现在进行的生产，很多零件用的都是非标的，那么这些非标零件进行生产的工具就是专用夹具。在现代化生产里面，专用夹具是必不可少的。 这篇设计的夹具是用来生产摇杆零件的，主要写了两大内容，一个是设计摇杆零件生产工艺流程，还有一部分是设计M8螺纹孔钻床上使用的专用夹具。 才开始写的时候，我查看了很多的资料，定位夹具是怎么进行的，怎么样对零部件进行夹紧，这些专业知识我都查看了，另外，现在夹具行业是什么状况，涉及哪些专业，都进行了仔细的阅读。主要写的东西有，分析零部件的构造，零件在生产的时候用怎样的形式来进行，将产品的图纸，还有毛坯图纸都画出来，之后将生产每一步的数据都算出来，将切削时候的使用量都定下来，将生产工艺流程卡写出来，将生产工序卡也写出来，将生产时候的定位办法，还有夹紧办法都确定下来，定位的零部件还有夹紧的零部件都确定下来，分析在定位时候的偏差，将夹具的装配图纸，还有详细的零件图都画出来；撰写设计说明书，对本次设计进行总结。 关键词：专用夹具、摇杆、加工工艺、M8螺纹孔、钻床 Abstract I
n the curre
nt productio
n, ma
ny parts are
no
n-sta
ndard, the
n the tools for the productio
n of these
no
n-sta
ndard parts are special fixtures. I
n moder
n productio
n, special fixtures are esse
ntial. The fixture desig
ned i
n this paper is used to produce rocker parts. The paper mai
nlywrites two major co
nte
nts, o
ne is the desig
n process of desig
ni
ng the rocker parts, a
nd the other is the special fixture used to desig
n the M8 threaded hole drilli
ng machi
ne. Whe
n I startedwriti
ng the thesis, I looked at a lot of i
nformatio
n. How did the positio
ni
ng fixturework? How to clamp the parts? I have checked all the professio
nal k
nowledge. I
n additio
n,what is the status of the fixture i
ndustry? They have bee
n carefully read. The mai
n thi
ngswritte
n i
n the thesis are: a
nalyzi
ng the structure of the parts,what form the parts are used i
n productio
n, drawi
ng the drawi
ngs of the products, a
nd the bla
nk drawi
ngs, a
nd the
n calculati
ng the data for each step of the productio
n. The amou
nt of use duri
ng cutti
ng is fixed, the productio
n process card iswritte
n, the productio
n process card is alsowritte
n, the positio
ni
ng method at the time of productio
n, a
nd the clampi
ng method are determi
ned, a
nd the positio
ned parts are also clamped. The compo
ne
nts are all determi
ned, the deviatio
n duri
ng the positio
ni
ng is a
nalyzed, the assembly drawi
ngs of the fixture, a
nd the detailed parts drawi
ngs are draw
n; the desig
n specificatio
n iswritte
n to summarize the desig
n. Keywords: special fixture, rocker, machi
ni
ng process, M8 threaded hole, drilli
ng machi
ne 目录 摘要I Abstract II 第1章绪论1 1.1机床夹具在机械加工中的作用1 1.2钻床夹具概述1 第2章摇杆机械加工工艺规程设计3 2.1零件的工艺分析及生产类型的确定3 2.1.1零件的作用3 2.1.2零件的工艺分析3 2.1.3零件生产类型的确定4 2.2零件工艺规程设计4 2.2.1零件制造形式的确定4 2.2.2基准的选择5 2.3选择、比较和确定加工工艺路线5 2.3.1选择加工工艺路线5 2.3.2比较加工工艺路线6 2.3.3确定加工工艺路线6 2.4加工设备、装夹夹具、加工刀具及测量量具的确定7 2.5机械加工余量的确定7 2.6确定切削用量及基本工时9 第3章M8螺纹孔钻床专用夹具设计23 3.1问题的提出23 3.2夹具设计23 3.2.1确定定位方案，选择定位元件23 3.2.2确定夹紧方案，选择夹紧元件24 3.2.3夹具体的设计24 3.2.4钻套的选择25 3.2.5钻削力及夹紧力计算25 3.2.6定位误差分析26 结论27 致谢28 参考文献29