拖(tuo)泵制造(zao)工藝

錐齒輪(lun)加工(gong)工(gong)藝流程和(he)難點控制

為確保齒(chi)(chi)(chi)(chi)(chi)輪熱(re)處理(li)時，能(neng)夠(gou)減小變形(xing)并獲得(de)均勻的(de)(de)組(zu)織和較好的(de)(de)機(ji)械性能(neng)，在(zai)機(ji)加(jia)工(gong)前，先 對齒(chi)(chi)(chi)(chi)(chi)坯進(jin)(jin)(jin)行(xing)(xing)高溫正(zheng)(zheng)火(huo)預處理(li)，可以使組(zu)織得(de)到細化(hua)，并減小滲(shen)碳(tan)淬(cui)火(huo)時零(ling)件的(de)(de)變形(xing)，同時還有利于 提(ti)高切削性能(neng)。正(zheng)(zheng)火(huo)后(hou)轉(zhuan)機(ji)加(jia)工(gong)，先在(zai)車床(chuang)上對齒(chi)(chi)(chi)(chi)(chi)坯外圓、端面進(jin)(jin)(jin)行(xing)(xing)粗(cu)、精加(jia)工(gong)后(hou)，在(zai)臥式銑床(chuang)上進(jin)(jin)(jin) 行(xing)(xing)銑齒(chi)(chi)(chi)(chi)(chi)，然(ran)后(hou)在(zai)插床(chuang)上插鍵槽，全部機(ji)加(jia)工(gong)完成(cheng)后(hou)，進(jin)(jin)(jin)行(xing)(xing)滲(shen)碳(tan)淬(cui)火(huo)和低(di)溫回火(huo)處理(li)，進(jin)(jin)(jin)行(xing)(xing)后(hou)序處 理(li)。該(gai)零(ling)件的(de)(de)工(gong)藝流(liu)程為：正(zheng)(zheng)火(huo)→車削→銑齒(chi)(chi)(chi)(chi)(chi)→插鍵槽→滲(shen)碳(tan)淬(cui)火(huo)及退(tui)火(huo)→噴砂→防銹處理(li)。工(gong)藝難點為銑齒(chi)(chi)(chi)(chi)(chi)和熱(re)處理(li)工(gong)序。