航空摇臂类零件的加工工艺研究

Machining Process Research of Aviation Rocker Arm Part

航空摇臂类零件是航空产品中重要的承力件,多为薄壁、异形的框架结构,加工过程中存在着加工精度难保证、定位基准难选取和数控刀路难安排等问题。采用传统工艺加工零件,往往需要定制多套夹具,经过多种设备的周转才能完成,其加工质量差,成本高,周期长。通过对航空摇臂类零件的加工工艺进行分析和改进,研究了在加工航空摇臂类零件时的夹具设计方案、刀具的选用以及数控程序编制过程中需要注意的事项,对同类型摇臂的加工具有借鉴意义。

Aviation rocker arm part is the main load bearing part in the aviation product,normally with frame structure of thin wall,special-shaped,which have issues during machining such as it is hard to ensure the machining accuracy,hard to choose the positioning datum,and hard to arrange the NC tool path.In order to finish the part machining,the traditional process needs a lot set of fixture,and turnover for many kinds of equipment,the machining quality is bad with high cost and long cycle time.By analyzing and improving the machining process of aviation rocker arm part,this assay discusses the notice during fixture design plan,tool choosing and NC programming of aviation rocker arm part machining,which has the reference value to the same type of rocker arm part machining.