拖(tuo)泵(beng)制造工(gong)藝

錐齒輪(lun)加工工藝流程和難(nan)點(dian)控制

為確(que)保齒輪熱處(chu)理時，能夠減小變(bian)形并獲得均勻的(de)(de)組織和較好的(de)(de)機(ji)械性能，在(zai)機(ji)加工(gong)(gong)(gong)前，先 對齒坯進行高(gao)溫正火(huo)(huo)(huo)預(yu)處(chu)理，可(ke)以使(shi)組織得到細化，并減小滲(shen)碳(tan)(tan)淬(cui)火(huo)(huo)(huo)時零件的(de)(de)變(bian)形，同時還有(you)利于 提高(gao)切削性能。正火(huo)(huo)(huo)后(hou)(hou)轉(zhuan)機(ji)加工(gong)(gong)(gong)，先在(zai)車(che)床上對齒坯外圓(yuan)、端(duan)面進行粗、精(jing)加工(gong)(gong)(gong)后(hou)(hou)，在(zai)臥式銑床上進 行銑齒，然后(hou)(hou)在(zai)插床上插鍵槽，全部機(ji)加工(gong)(gong)(gong)完成后(hou)(hou)，進行滲(shen)碳(tan)(tan)淬(cui)火(huo)(huo)(huo)和低(di)溫回火(huo)(huo)(huo)處(chu)理，進行后(hou)(hou)序處(chu) 理。該零件的(de)(de)工(gong)(gong)(gong)藝流程為：正火(huo)(huo)(huo)→車(che)削→銑齒→插鍵槽→滲(shen)碳(tan)(tan)淬(cui)火(huo)(huo)(huo)及退(tui)火(huo)(huo)(huo)→噴砂(sha)→防銹(xiu)處(chu)理。工(gong)(gong)(gong)藝難點為銑齒和熱處(chu)理工(gong)(gong)(gong)序。