毕业设计---汽车变速箱前后面孔系钻削攻丝组合机床设计

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1、 1 摘要摘要 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

2、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。 关键词关键词：组合机床，多轴箱，夹具。 2 Abstract The design topic is design the moduler machine to drill the hole of the speed controller box of The automob

3、iles s in back of department .Because the 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 the quantity of work piece, adopted the combine machine for drill can

4、 raise the rate of production and accuracies appropriatively. It is the overall designing which makes up the lathe at first, What this part will be done is how to design and draw the “ three pictures “( processing part process picture, process sketch map, lathe get in touch with size general drawing

5、 ), these make up the foundation of designing of the lathe . The lathe get in touch with size general drawing has a lot 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 lathes tongs des

6、ign and its 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 wanted design each size of axle rational when working. Through analyse and process the situation of the hole, design the distribution of the main shaftBecause the automation degree of the moduler machine is higher, making up lathes tongs and ordinary tongs of lathe are different, adopt hydraulic pressure organi