拖泵制造工藝

錐(zhui)齒輪加工(gong)工(gong)藝流程和難點控制

為確(que)保齒(chi)輪(lun)熱處理(li)時(shi)，能(neng)(neng)夠減(jian)小(xiao)變(bian)形并獲得均勻的(de)(de)組(zu)(zu)織和較好的(de)(de)機(ji)(ji)(ji)械性能(neng)(neng)，在(zai)機(ji)(ji)(ji)加工(gong)(gong)前(qian)，先(xian) 對(dui)齒(chi)坯進(jin)行高(gao)溫(wen)正火(huo)預處理(li)，可(ke)以使(shi)組(zu)(zu)織得到細(xi)化，并減(jian)小(xiao)滲碳淬(cui)火(huo)時(shi)零件的(de)(de)變(bian)形，同時(shi)還有利于 提(ti)高(gao)切削性能(neng)(neng)。正火(huo)后轉機(ji)(ji)(ji)加工(gong)(gong)，先(xian)在(zai)車床上對(dui)齒(chi)坯外圓、端面進(jin)行粗(cu)、精(jing)加工(gong)(gong)后，在(zai)臥(wo)式銑(xian)(xian)(xian)床上進(jin) 行銑(xian)(xian)(xian)齒(chi)，然后在(zai)插床上插鍵槽，全部機(ji)(ji)(ji)加工(gong)(gong)完成后，進(jin)行滲碳淬(cui)火(huo)和低溫(wen)回(hui)火(huo)處理(li)，進(jin)行后序處 理(li)。該零件的(de)(de)工(gong)(gong)藝流(liu)程為：正火(huo)→車削→銑(xian)(xian)(xian)齒(chi)→插鍵槽→滲碳淬(cui)火(huo)及退火(huo)→噴砂→防銹處理(li)。工(gong)(gong)藝難(nan)點為銑(xian)(xian)(xian)齒(chi)和熱處理(li)工(gong)(gong)序。