机械5

摘要 本次设计的主要内容是镗床主轴的加工工艺及夹具设计。通过对任务书的解读，内容有加工工艺规程，专用夹具两部分。在掌握零件作用以及对其进行分析的基础上，完成了这两部分的设计内容。 在进行设计之前，对机床专用夹具部分的内容进行了了解和掌握。对零件镗床主轴的零件图进行了分析，知晓该镗床主轴的作用是传递相关的运动和动力，因为零件在工作中承受的载荷不是很大，工作相对平稳，其材料是常见45钢，并经正火处理。编写了加工工艺路线，填写过程卡还有工序卡，对其中相应切削数据进行计算。完成了零件毛坯图的绘制，坯料用圆钢。 本次设计的专用夹具是为加工宽8，长22槽而进行的。采用立式铣床进行加工。在明确定位原理的基础上，完成零件定位方案的设计；选择了定位元件；完成夹紧方案的设计；选择了夹紧元件、对刀块、铣削力等。 关键词：镗床；主轴；加工工艺；夹具设计 Abstract The mai
n co
nte
nt of this desig
n is the processi
ng tech
nology a
nd fixture desig
n of the spi
ndle of the bori
ng machi
ne. Through the readi
ng of the task book, the co
nte
nt has processi
ng tech
nology regulatio
ns, special fixture two parts. The desig
n co
nte
nt of the two parts is completed o
n the basis of the a
nalysis of the role of the parts a
nd the a
nalysis of them. Before the desig
n is carried out, the co
nte
nt of the special fixture part of the machi
ne tool is u
nderstood a
nd mastered. The part diagram of the spi
ndle of the bori
ng machi
ne is a
nalyzed. It is k
now
n that the spi
ndle fu
nctio
n of the bori
ng machi
ne is to tra
nsmit related motio
n a
nd power, because the load that the part bears i
n thework is
notvery large, a
nd thework is relatively stable. The material is commo
n 45 steel a
nd
normalizi
ng. The processi
ng route iswritte
n, the filli
ng process card a
nd the process card are filled i
n, a
nd the correspo
ndi
ng cutti
ng data are calculated. The drawi
ng of the bla
nk drawi
ng of the parts is completed, a
nd the billet is made of rou
nd steel. The special fixture desig
ned i
n this desig
n is made for 8wide a
nd 22 grooves. Thevertical milli
ng machi
ne is used for machi
ni
ng. O
n the basis of clear positio
ni
ng pri
nciple, the desig
n of parts locatio
n pla
n is completed, the positio
ni
ng eleme
nts are selected, the clampi
ng scheme is desig
ned, a
nd the clampi
ng eleme
nts, cutter block a
nd milli
ng force are selected. Keywords: bori
ng machi
ne; spi
ndle; processi
ng tech
nology; fixture desig
n 目录 摘要I Abstract II 第1章零件的分析- 1- 1.1零件的作用- 1- 1.2零件的组成表面- 1- 1.3零件的加工要求及形位公差- 2- 1.3.1零件的加工要求- 2- 1.3.2零件的形位公差- 2- 第2章工艺规程的设计- 3- 2.1机械加工工艺规程概述- 3- 2.2零件生产类型、材料、制造形式及热处理- 3- 2.2.1零件的生产类型- 3- 2.2.2零件的材料- 3- 2.2.3零件的制造形式- 3- 2.2.4零件的热处理- 3- 2.3零件的毛坯图- 3- 2.4零件加工基准的选择- 4- 2.5零件加工工艺路线的设计- 4- 2.6零件加工装备、装夹方案、刀具及量具的选择- 5- 2.7零件加工余量的确定- 6- 2.8零件切削用量及基本工时的计算- 10- 第3章专用夹具设计- 25- 3.1定位方案的确定- 25- 3.1.1镗床主轴定位方案的确定- 25- 3.1.2 V型定位块定位方案的确定- 25- 3.1.3定位座定位方案的确定- 25- 3.1.4对刀块定位方案的确定- 25- 3.2定位元件的确定- 25- 3.2.1镗床主轴定位元件的确定- 25- 3.2.2 V型定位块定位元件的确定- 25- 3.2.3定位座定位元件的确定- 26- 3.2.4对刀块定位元件的确定- 26- 3.3夹紧方案的确定- 26- 3.3.1镗床主轴夹紧方案的确定- 26- 3.3.2 V型定位块夹紧方案的确定- 26- 3.3.3定位座夹紧方案的确定- 27- 3.3.4对刀块夹紧方案的确定- 27- 3.4夹紧元件的确定- 27- 3.4.1镗床主轴夹紧元件的确定- 27- 3.4.2 V型定位块夹紧元件的确定- 27- 3.4.3定位座夹紧元件的确定- 27- 3.4.4对刀块夹紧元件的确定- 27- 3.5夹具体的确定- 27- 3.6导向装置的确定- 28- 3.7铣削力的确定- 28- 3.8夹紧力的确定- 29- 3.9定位误差的确定- 30- 结论- 31- 参考文献- 32- 致谢- 33-