机械5

摘要 本次主要设计内容是对圆形薄壁螺母进行加工工艺的设计以及攻M36X1.5螺纹孔专用夹具设计。该零件的作用是紧固机器以及机构上的零件。确保机器或者机构正常工作，一般是和螺栓配合使用。 工艺设计涉及到的知识点比较多，有机械生产工艺，公差配合与测量等。设计工艺的时候要分析零部件，将产品的工艺路线设计出来：设计工序的时候，算出来这个产品的每一个工序的数据；完成加工工艺路线对应的工艺过程卡和切削用量对应的加工工序卡。 专用夹具设计了攻M36X1.5螺纹孔的钻床专用夹具。设计专用夹具的时候，将固定工件的定位方案还有元件确定好，将夹紧工件的夹紧方案还有夹紧元件确定好等等。最后，完成夹具装配图还有零件图的绘制，编写设计说明书等。 关键词：圆形薄壁螺母；加工工艺；攻M36X1.5螺纹孔；钻床；专用夹具 Abstract The mai
n desig
n co
nte
nt is the desig
n of the processi
ng process of the rou
nd thi
n-walled
nut a
nd the special fixture desig
n of the M36X1.5 threaded hole. The purpose of this part is to faste
n the machi
ne a
nd the parts o
n the mecha
nism. Make sure the machi
ne or mecha
nism isworki
ng properly, usually i
n co
nju
nctio
nwith bolts. There are ma
ny k
nowledge poi
nts i
nvolved i
n process desig
n, such as mecha
nical productio
n process, tolera
nce matchi
ng a
nd measureme
nt. Whe
n desig
ni
ng the process, a
nalyze the parts a
nd desig
n the process route of the product:whe
n desig
ni
ng the process, calculate the data of each process of the product; complete the process card correspo
ndi
ng to the process route a
nd the processi
ng card correspo
ndi
ng to the cutti
ng amou
nt. The special fixture is desig
nedwith a special drill for the drilli
ng machi
ne that taps the M36X1.5 threaded hole. Whe
n desig
ni
ng a special fixture, the positio
ni
ng scheme of the fixedworkpiece a
nd the compo
ne
nts are determi
ned, the clampi
ng scheme for clampi
ng theworkpiece, the clampi
ng compo
ne
nt is determi
ned, a
nd the like. Fi
nally, complete the fixture assembly drawi
ng a
nd part drawi
ng, a
ndwrite the desig
n ma
nual. Keywords: rou
nd thi
n-walled
nut; processi
ng tech
nology; tappi
ng M36X1.5 threaded hole; drilli
ng machi
ne; special fixture 目录 摘要I Abstract II 第一章绪论1 1.1本课题研究背景的分析1 1.2本课题发展现状的分析1 1.3本课题研究的目的及意义2 第二章零件的分析、制造方式及生产类型的确定4 2.1零件的分析4 2.1.1零件作用的分析4 2.1.2零件的材料分析4 2.1.3零件组成表面的分析5 2.1.4零件加工表面的分析5 2.2零件生产类型的确定5 2.3零件制造形式的确定6 第三章零件加工工艺的设计7 3.1基准的选择7 3.2选择、比较和确定加工工艺路线8 3.2.1选择加工工艺路线8 3.2.2比较和确定加工工艺路线9 3.3加工设备、夹具、刀具及量具的确定9 3.4机械加工余量的确定10 3.5确定切削用量及基本工时11 第四章专用夹具的设计22 4.1确定定位方案，选择定位元件22 4.2确定夹紧方案，选择夹紧元件22 4.3夹具体的设计23 4.4对刀装置的选择24 4.5钻削力的计算24 4.6夹紧力的计算24 4.7定位误差分析25 结论26 致谢27 参考文献28