机械5

传动轴的机械加工工艺及铣尺寸20.50，宽为6h9mm键槽夹具设计 摘要 设计内容传动轴的机械加工工艺及铣尺寸20.50，宽为6h9mm键槽夹具设计。通过对任务书的解读，内容有加工工艺规程，铣床专用夹具两部分。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。对零件传动轴的零件图进行了分析，知晓该传动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，坯料用热轧圆钢。 本次设计的专用夹具是为加工尺寸20.50，宽为6h9mm键槽而进行的。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。还对对刀块、铣削力等。 关键词：传动轴、加工工艺、6h9mm键槽、夹具、立式铣床 ABSTRACT Desig
n Co
nte
nt Drive shaft machi
ni
ng a
nd milli
ng dime
nsio
ns 20.50,wide 6h9mm keyway fixture desig
n. Through the i
nterpretatio
n of the missio
n stateme
nt, the co
nte
nts of the processi
ng procedures, milli
ng machi
ne dedicated fixture i
n two parts. O
n the basis of masteri
ng the role of parts a
nd a
nalyzi
ng them, the desig
n co
nte
nts of these two parts are completed. Before proceedi
ngwith the desig
n,we lear
ned a
nd mastered the co
nte
nts of the fixture for machi
ne tools. Parts of the drive shaft partswere a
nalyzed to k
now the role of the tra
nsmissio
n shaft is related to the moveme
nt a
nd power tra
nsmissio
n, because the parts i
n thework towithsta
nd the load is
not large, thework is relatively stable, the material is a commo
n 45 steel, a
nd by Normalizi
ng treatme
nt. Prepared the processi
ng route, fill i
n the process card there are process cards, the correspo
ndi
ng cutti
ng data forwhich calculatio
ns. Completed the drawi
ng of the bla
nk drawi
ng, hot rolled barwith a bla
nk. The desig
n of the special fixture for the processi
ng size 20.50,width 6h9mm keyway a
nd carried out. Vertical milli
ng machi
ne for processi
ng. O
n the basis of the clear positio
ni
ng pri
nciple, the desig
n of the part positio
ni
ng scheme is completed; the positio
ni
ng eleme
nt is selected; the desig
n of the clampi
ng scheme is completed; the clampi
ng eleme
nt is selected. Also o
n the k
nife block, milli
ng force a
nd so o
n. Keywords: drive shaft, machi
ni
ng process, 6h9mm keyway, fixture,vertical milli
ng machi
ne 目录 摘要I ABSTRACT II 第一章传动轴零件结构分析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 第二章机械加工工艺规程设计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4 2.7零件加工余量的确定5 2.8零件切削用量及基本工时的计算7 第三章铣床专用夹具设计24 3.1定位方案的确定24 3.1.1传动轴定位方案的确定24 3.1.2 V型定位块定位方案的确定24 3.1.3定位座定位方案的确定24 3.1.4对刀块定位方案的确定24 3.2定位元件的确定24 3.2.1传动轴定位元件的确定24 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25 3.2.4对刀块定位元件的确定25 3.3夹紧方案的确定25 3.3.1传动轴夹紧方案的确定25 3.3.2 V型定位块夹紧方案的确定25 3.3.3定位座夹紧方案的确定25 3.3.4对刀块夹紧方案的确定26 3.4夹紧元件的确定26 3.3.1传动轴夹紧元件的确定26 3.3.2 V型定位块夹紧元件的确定26 3.3.3定位座夹紧元件的确定26 3.3.4对刀块夹紧元件的确定26 3.5夹具体的确定26 3.6导向装置的确定27 3.7铣削力的确定27 3.8夹紧力的确定27 3.9定位误差的确定28 结论29 致谢30 参考文献31