摘要本文介绍了汽车转向节设计制造的整个过程，其中机械工艺规程部分详细说明零件工艺分析，基准选择，工艺路线制定，加工经济度和加工方法的经济选择，加工阶段上述分析，毛坯的制造，拟定工艺路线，确定切削余量，毛坯决定的加工尺寸大小；机床夹具设计，机床夹具包括一些主要的夹具组成，夹具的类型，夹具的功能，工件在夹具上的位置，工件夹的夹紧，拉主销孔夹具设计，刀具设计部分包括的主要刀具，拉刀的设计特点，种类，拉削销孔的主要刀具的设计。23035
有效的利用高效组合机床，不仅要效率，而且要确保该定位精度的要求，重点放在加工过程和减少定位误差，加工效率高。组合夹具，专有夹具，操作简便，缩短了辅助实践。合理有序的工序不足，以减少工件量，节约资源。
拉削主销孔夹具采用摇板与支撑组成的自我定位的支撑，让拉刀在这个拉削过程中的切割保持和主销孔的同轴度。机构简单，易于操作，并确保准确和精度，拉削过程中就用一次行程可以完成拉削过程，提高加工效率。
拉刀的设计采用了组合式来源空拉刀设计方法，拉刀的特点分析，类型，材料和其他问题，根据加工余量，大小，工件材料的设计需要的刀具。拉刀这种工具，具有高效率，高精密加工的特点，在机械加工中被广泛的加工应用。
关键词    转向节  加工工艺  工艺路线 切削余量    夹具 
Abstarac
This paper describes the car section of the manufacturing process to design the whole process of which machinery of the order of the detailed description of the parts analysis, the benchmark choice of route development, precision machining and processing methods of economic choice, the processing stage of the Analysis rough the manufacture, preparation of the road, determined cutting cushion and processing determine the size and rough; machine fixture of the function, the workpiece in the fixture on the location, folder Tight, pull the main pin hole fixture design, including the man tool of the design characteristics of Broach, Broach type, pin hole Broaching the main tool used by design.
Efficient use of processing combination of machine tools, not only efficient, but also to ensure that the location accuracy requirements focus on processes and reduce the positioning error processing efficiency. A combination of fixture, proprietary fixture, easy to operate, shortened the time to support. Reasonable and orderly process for steps to reduce the workload, saving resources.
Broaching the main pin hole fixture with a shake-sales support of the self-targeted support to broach in Rafah in the process of cutting its own maintain and broach the main line of the pin hole. Bodies simple, easy to operate, and ensure the accuracy of processing Broaching process can be completed in one trip Broaching process, the processing efficiency.
Broach the design using a modular design methods hole Broach, Broach analysis of the characteristics, types, materials and other issues, according to the cutting csshion, size, the workpiece materials designed for tool. Rafah processing tool has high efficiency, high-precision machining characteristics, it was widely machining applications.
Keyword:  Knuckle, technological manufacturing design, the line of the manufacture, fixture, broach
 绪 论
近20年来，随着科学与技术的迅速发展，特别是计算机科学与技术的迅速发展和广泛应用，国外在发展自动化方面也进入了一个新的时期，出现了许多新的工具和软件。自动化开始向柔性化发展，进入中小批量生产领域。
在制定工艺过程中，为便于组织生产、安排计划和均衡机床的负荷，常将工艺划分为若干个工序。划分工序时有两个不同的原则，即工序的集中和工序的分散。工序集中的特点是：一是有利于采用自动化程度较高的高效率机床和工艺设备，生产效率高；二是工序数少，设备数少，可相应减少操作工人数和生产面积；三是工件的装夹次数少不但缩短辅助时间，而且由于一次装夹中可加工许多表面，有利于保证各表面之间的相互位置精度。工序分散的特点是:一是所用机床和工艺设备简单，易于调整；二是对操作工人的技术水平要求不高；三是工序数多，设备数多，操作工人多，占用生产面积大。 汽车转向节加工工艺及工艺装备设计+CAD图纸:http://www.751com.cn/jixie/lunwen_15946.html