转臂内孔非连贯变导程螺旋油槽加工技术

Spiral Oil Groove Machining Technology for the Inner Hole of the Rotating Arm

良好的螺旋油槽是保证轧机转臂内外滚动面充分润滑的关键,以前是采用连贯的、恒导程螺旋油槽,机械加工相对容易,新开发的2800 mm中厚板轧机中的转臂润滑要求更高,设计出了位于转臂内孔中的非连贯、变导程的螺旋油槽,加工这种新型油槽存在许多困难。文章分析了位于内孔的非连贯、变导程螺旋油槽机械加工存在的难点,并针对具体难点制定出相应的技术方案及具体实施措施,最终采用普通车床+专用油钩铣刀+不同挂轮的方式,成功实现了孔内非连贯、变导程新型油槽的加工。为此类加工提供了技术参考。

Good spiral groove is the guarantee of rolling mill rolling surface turning arm inside and outside the key to sufficient lubrication,used to be coherent,constant lead screw groove,mechanical processing capacity,relatively new products as a boom of the 2800 mm plate mill lubrication requirements higher,devised in jib inner hole of the coherent,and variable lead helical groove,processing this kind of new oil tank there is a lot of difficulties.Is located in the inner hole of coherence is analyzed and variable lead helical groove machining difficulty,and for specific difficulties make corresponding technical scheme and concrete implementation measures,and finally with ordinary lathe+special oil hook milling cutter+different ways of hanging round hole is implemented not coherent,lead the new groove processing.It provides technical reference for this kind of processing.