404312B后桥托架加工工艺与工艺装备设计.doc

摘要
本文的论题为404312B型后桥托架的加工工艺与工艺装备设计。
本文第一部分为零件的介绍分析和各部分数据用量的计算。这部分内容介绍了零件的作用,零件材料以及技术要求。对加工工艺分析,加工工艺过程分析,工艺规程设计都有设计说明。文中确定了零件的生产类型,研究分析了工艺路线,安排零件加工的工序。对各道工序所需要的用时,进刀量等等都有详细的计算说明。
后部分是本文的重点所在,着重设计了加工后桥托架上的四个轴承孔的夹具,这四个孔有垂直度和同轴度的要求,所以对夹具的要求比较高。在这部分中,对夹具体的选用,夹具体整体结构的设计,夹具体的定位方式,定位误差分析都做了详细的论述和计算。在夹具体的设计中,对夹具体的选用,定位方式和夹紧方式的选择,定位原件和夹紧原件的选择作了设计说明,并确认了夹紧力的大小。对夹具体的各个主要零件,技术要求也做了分析和论述。具体内容见后章说明与图纸。
关键词:后桥托架;镗孔;夹具设计;
Abstract
This article was the subject of 404312 B-type bridge brackets after the processing technology and process equipment design.
Parts for the first part of this paper on the part of the data analysis and the amount of calculation. This part of the contents on the role of parts, materials and technical requirements for spare parts. Analysis of the processing technology, processing technology process analysis, process design that have a point of order design. In determining the types of parts production, research and analysis of the process line, parts for the processing procedures. On the procedures needed to use, Feed and so on have a detailed description of the calculation.
After the part is the focus of this paper, focused on the design of the bridge after the processing of the four brackets on the fixture bearing holes, the four hole with a vertical and coaxial of the request, the request of the fixture relatively high. In this section, the selection of specific folder, the folder structure of the overall design of concrete, specific folder location, location error has done a detailed analysis of the exposition and calculation. In the specific folder in the design of specific folder on the selection, positioning methods and means clamping the choice, positioning and clamping Original Original design that made the choice, and that the clamping force size. Specific folder on each of the major parts, technical requirements are also analyzed and discussed. Xianhou specific contents of that chapter and drawings.
Key word: Rear axle of car bracket Bori