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831006 CA6140 车床 切断 机械 工艺 夹具 设计

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831006CA6140车床拨叉（铣切断面）机械工艺夹具设计,831006,CA6140,车床,切断,机械,工艺,夹具,设计

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河南理工大学万方科技学院本科毕业论文摘 要 此次设计是对拨叉零件的加工工艺和夹具的设计，其零件为锻件，具有体积小，零件复杂的特点。由于面比孔易加工，在制定工艺规程时，就先加工面，再以面为基准来加工其他，其中各工序夹具都采用专用夹具，特别的对于加工大头孔、槽和钻小头斜面小孔的工序中，选一面两销的定位方式，并以操作简单的手动夹紧方式夹紧，其机构设计简单，方便且能满足要求。关键词 拨叉，加工工艺，专用夹具，设计AbstractThe design Plectrum parts of the process and fixture design, and its parts forgings, small size, complex parts due to the surface hole Yi processing, the development of the technological procedure, on the first machined surface, and then to the surfaceprocessing as a benchmark to other, in which the process fixture with special fixtures, special process for processing the bulk of holes, slots and slant hole drilling small head positioning, the election of two sells, and simple to operate manual clampingclamping manner, its structure is simple, convenient and can meet the requirements.Key Word Fork, proce