拖(tuo)泵制(zhi)造工藝

錐齒輪加工(gong)工(gong)藝(yi)流程和(he)難點控制

為確保齒(chi)輪(lun)熱處(chu)理(li)時，能(neng)(neng)夠減小(xiao)變形并獲得均勻的(de)組(zu)織和(he)較(jiao)好(hao)的(de)機械性(xing)能(neng)(neng)，在機加(jia)工(gong)(gong)(gong)前，先 對齒(chi)坯(pi)進行高(gao)(gao)溫正(zheng)火預處(chu)理(li)，可以使組(zu)織得到細化(hua)，并減小(xiao)滲碳淬(cui)(cui)火時零件的(de)變形，同時還有利于 提(ti)高(gao)(gao)切(qie)削(xue)性(xing)能(neng)(neng)。正(zheng)火后(hou)轉(zhuan)機加(jia)工(gong)(gong)(gong)，先在車(che)床(chuang)上(shang)對齒(chi)坯(pi)外圓、端面進行粗(cu)、精加(jia)工(gong)(gong)(gong)后(hou)，在臥式銑(xian)(xian)(xian)床(chuang)上(shang)進 行銑(xian)(xian)(xian)齒(chi)，然后(hou)在插(cha)(cha)床(chuang)上(shang)插(cha)(cha)鍵槽，全部機加(jia)工(gong)(gong)(gong)完成后(hou)，進行滲碳淬(cui)(cui)火和(he)低溫回火處(chu)理(li)，進行后(hou)序處(chu) 理(li)。該(gai)零件的(de)工(gong)(gong)(gong)藝(yi)流程為：正(zheng)火→車(che)削(xue)→銑(xian)(xian)(xian)齒(chi)→插(cha)(cha)鍵槽→滲碳淬(cui)(cui)火及退(tui)火→噴砂→防銹處(chu)理(li)。工(gong)(gong)(gong)藝(yi)難點為銑(xian)(xian)(xian)齒(chi)和(he)熱處(chu)理(li)工(gong)(gong)(gong)序。