669 汽车变速箱前后面孔系钻削攻丝组合机床设计（有cad图）.pdf

摘要 本次的设计题目为汽车变速箱前后面孔系钻削攻丝组合机床设 计。汽车变速箱零件上的孔数多，如果采用普通的钻床加工效率低， 精度也比较低。特别是对于生产批量大的工件，采用专用的钻孔组 合机床能提高生产率和精度。首先是组合机床的总体设计，包括制 定工艺方案、确定机床配置形式、制订影响机床总体布局和技术性 能的主要部件的结构方案。主要工作是“三图”（加工零件工序图、 加工示意图和机床联系尺寸总图）的设计和绘制，这些是组合机床 设计的基础。机床联系尺寸图有很多是标准组件，如动力滑台、侧 底座等。再来就是技术设计，主要是多轴箱装配图、夹具设计及其 装配图。机床多轴箱设计，是本次设计的重点。多轴箱中各个轴的 选择和分布是最为关键的也是难点之一，这要根据被加工零件的结 构特点及所要加工孔的情况合理地布置各个主轴及传动轴。此外， 通过计算各轴工作时所要的功率、扭矩合理地设计各个轴的大小。 由于组合机床的自动化程度较高，因而组合机床的夹具和通用机床 的夹具是有所不同的，因此采用液压机构进行夹紧，并采用连动销 定位。 关键词：组合机床，多轴箱，夹具。 1 Abstract Thedesigntopicisdesignthemodulermachinetodrilltheholeofthe speedcontrollerboxofTheautomobilessinbackofdepartment.Becausethe automobile become soon box has so much holes , if the common drill machines are adopted to drill the holes ,the efficiency will be low and the accuracy is also lower.Especially for produce thequantityof work piece, adopted the combine machine for drill can raise therate ofproduction and accuracies appropriatively. It is the overall designing which makes up the latheatfirst,Whatthispartwillbedoneishowtodesignanddrawthethree pictures(processingpartprocesspicture, process sketchmap,lathegetin touchwithsizegeneraldrawing),thesemakeupthefoundationofdesigning ofthelathe.The latheget in touch with sizegeneral drawing has alot of standard module, such as power slippery platform, incline base part etc .Socend It is the technique designing, mainly the lathe many axle case designing and the lathe’s tongs design and it’s assembles the diagram. the focal point of the many axle case designing, and it each choice and distribution of axle is the most key, so calculate every axle power, torsion wanteddesigneachsizeofaxlerationalwhenworking.Throughanalyseand process the situation of the hole, design the distribution of the main shaft..Because the automation degree of the moduler machine is higher, making up lathe’s tongs and ordin