拖拉机倒挡拨叉零件的机械加工工艺及工装设计-钻孔夹具设计（有CAD图纸）.pdf

Sichuan Vocational and Technical College 2012.09—2013.04 1 . Abstract This paper is of tractor reverse gear shifting fork parts processing the application and processing of the process of analysis, mainly includes the selection of the parts diagram analysis, the semifinished materials, parts of the clamping, the process route of making, tool selection, cutting the amount of determination, the process file to fill. Choose the correct processing method, design reasonable processing technology. In addition to the packing box cover parts of the two process design of the special fixture. There are many types of machine tools, including the use of the most widely used universal fixture, standard size has been standardized, and a professional factory for production. And it is widely used in mass production, and it is a special fixture for the service of a particular workpiece. The main content of this paper is to design the drilling fixture. Key words: scaffold, processing technology, processing method, process documentation, fixture III 2 Abstract III IV 1