拖泵制造工(gong)藝

錐齒輪(lun)加工工藝流程(cheng)和(he)難點(dian)控制

為確保齒(chi)輪熱處(chu)理時(shi)，能(neng)夠減(jian)小(xiao)變(bian)(bian)形并獲得均勻的組織(zhi)和較好(hao)的機械性(xing)能(neng)，在(zai)(zai)機加(jia)(jia)工(gong)(gong)(gong)前，先(xian) 對齒(chi)坯進行高(gao)溫(wen)正(zheng)(zheng)火(huo)預處(chu)理，可以使組織(zhi)得到細化，并減(jian)小(xiao)滲碳淬(cui)火(huo)時(shi)零(ling)件的變(bian)(bian)形，同(tong)時(shi)還(huan)有利于(yu) 提高(gao)切削性(xing)能(neng)。正(zheng)(zheng)火(huo)后(hou)(hou)轉機加(jia)(jia)工(gong)(gong)(gong)，先(xian)在(zai)(zai)車床上對齒(chi)坯外圓、端面進行粗、精加(jia)(jia)工(gong)(gong)(gong)后(hou)(hou)，在(zai)(zai)臥(wo)式(shi)銑(xian)(xian)床上進 行銑(xian)(xian)齒(chi)，然(ran)后(hou)(hou)在(zai)(zai)插床上插鍵槽，全(quan)部機加(jia)(jia)工(gong)(gong)(gong)完成后(hou)(hou)，進行滲碳淬(cui)火(huo)和低溫(wen)回火(huo)處(chu)理，進行后(hou)(hou)序(xu)處(chu) 理。該零(ling)件的工(gong)(gong)(gong)藝流程為：正(zheng)(zheng)火(huo)→車削→銑(xian)(xian)齒(chi)→插鍵槽→滲碳淬(cui)火(huo)及退(tui)火(huo)→噴砂→防銹處(chu)理。工(gong)(gong)(gong)藝難(nan)點為銑(xian)(xian)齒(chi)和熱處(chu)理工(gong)(gong)(gong)序(xu)。