文档介绍：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 ponents in the shaft, bearings, gears and other spare parts kits and the location of certain mutual relations between 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 technology 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 tools, 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 pleted by the machine tool fixture, 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 ponents.
Keywords: differential carrier,technological analysis,clamping device
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