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育苗营养块课题：汽车后桥壳体的加工工艺规程及钻2-M8螺纹孔
和铣面夹具设计
子课题: 同课题学生姓名:
专业机械制造与自动化
学生姓名
班组
定鼎建筑学号
指导教师
完成日期
摘要
摘要
汽车后桥壳体是汽车的重要组成部分，它与主减速器、差速器和车轮传动装置组成驱动桥。驱动桥处与动力传动系的末端，其基本功能是增大由传动轴或变速器传来的转矩，并将动力合理的分配给左、右驱动轮，另外还承受作用于路面和车架或车身之间的垂直力、纵向力和横向力。它连接主减速器传动力，支撑差速器及半轴实现俩车轮差速转动；尺寸比较大，主要承受载荷。重点是保证壳体的强度和刚性性能，便于安装、调整和维修。 汽车后桥壳体一般采用铸铁铸造成型，在经过机械加工将其加工至使用要求，在生产过程中，汽车后桥壳体的加工工艺定制非常重要，工艺的编制决定了零件的精度及生产效率，尤其是这种大批量生产的零件，其工艺规程要考虑到产量问题。同时为了保证工件的加工精度，以及为了提高生产率而设计出各个工序的专用夹具，是操作者使用起来简单、快速、准确，从而在保证精度的前提下大大提高生产率。
关键词：工艺编制，加工时间，专用夹具，生产率
全套图纸，加153893706
meno2
Abstract
Automobile rear axle housing is an important part of the car, it with the Lord reducer, differential and wheel gear drive axle. Drive axle and the end of the power transmission system, its basic function is to increase the shaft or the transmission of torque, and power reasonable distribution to the left and right driving wheels, also bear role between road surface and frame or body of vertical force and vertical force and horizontal force. It connects the main reducer momentum, supporting both differential and half shaft wheel differential rotation. Size is larger, the main load bearing. The key is to ensure that shell strength and rigidity performance, ease of installation, adjustment and maintenance.带阻火器的呼吸阀
Automobile rear axle housing is made of cast iron casting forming, generally after machining to its processing to use requirement, in the process of production, the processing technology of the automobile rear axle shell custom is very important, the process of making determines the accuracy of the parts and the production efficiency, especially in the mass production of parts, the technical process to production into consideration. At the same time, in order to ensure the workpiece machining accuracy, and in order to improve the productivity and special fixture design of each process, is the operator to use simple, rapid and accurate, and on the premise of guarantee accurac
y greatly improved productivity.
Key words: machining process, machining time, special fixture, productivity
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