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1、越野车车架强度的有限元分析汽车差速器壳体设计 文档在线提供 摘 要 差速器壳是汽车差速器的一个主要零件,它使差速器及其部件中的轴、轴承、 套和齿轮等零件按一定的相互位置关系装配成一个整体,并按预定传动关系协调其运动。 首先,根据图纸分析零件的技术要求和难加工方面,零件类型的可以确定毛坯 的材料和铸件余量及形状,然后分析加工工艺选择粗细基准以及拟订工艺过程。通过上述分析选择工艺装备。对两种工艺方案进行优化选择,使工艺方案更加完善。此零件有些尺寸需要专用量具,所以需要设计专用的孔轴量具,对零件进行机械加工时,为保证工件加工精度,先要保证工件在机床上占有正确的位置,然后通过夹紧机构使工件在正确位置上
2、固定不动,这一任务就是由机床夹具完成,此钻孔夹具也需要专用夹具,通过对专用夹具知识的理解,对定位误差与加工误差的分析,采用 标准件和设计其他专用零部件。 关键词:差速器壳,工艺,夹具 ABSTRACT Differential carrier is a major automobile parts, it makes differential and their components in the shaft, bearings, gears and other spare parts kits and the location of certain mutual relations betw
3、een the assembly as a whole, and scheduled to drive to coordinate their relations Campaign. First ,all parts of the drawings in accordance with the technical requirements and difficult process, the rough parts to determine the types of materials and casting cushion and shape, and processing technolo
4、gy of choice of size and the formulation of the benchmark process. Through the choice of technique and equipment. Two of the programme to optimize the choice of programmes so that more perfect. Some parts of this size need special measuring tool, so it is necessary to design special-axis measuring t
5、ools, spare parts for machinery processing, to ensure the accuracy of the workpiece processing, must ensure that the workpiece on the machine occupies the right place, and then through the body to clamp the workpiece Correct position on the fixed-fixed, this task is completed by the machine tool fix
6、ture, this fixture also need special drilling jig through the fixture for the understanding of knowledge, the positioning error and processing error analysis, using standard parts and design and other special components. Keywords: differential carrier,technological analysis,clamping device 1 目录 第1章
7、绪论 1 1.1 概述 1 1.2机械制造工艺的进展和发展趋势 2 1.3机械加工工艺规程的作用 2 第2章 分析零件图 4 2.1 零件的专用 4 2.2 零件的工艺分析 4 2.3 确定生产类型 5 2.4确定毛坯种类 5 2.5 确定铸件余量及形状 5 第3机械加工工艺过程设计 6 3.1 选择定位基准 6 4.1.1 选择精基准 6 4.1.2 选择粗基准 6 3.2 拟定工艺过程 6 4.2.1 选择表面加工方法 6 4.2.2 确定工艺过程方案 7 第4章 选择加工设备和工艺设备 10 4.1 选择机床 10 4.2 选择夹具 10 4.3 选择刀具 10 4.4 选择量具 11 5.4.1 工序010粗加工可选通用量具 11 5.4.2 工序070铣两侧平面 11 第5章 确定工序尺寸 12 5.1 径向工序尺寸 12 5.2 轴向工序尺寸 12 5.2.1 按规定建立轴向工序尺寸联系表