拖泵制造工藝

錐(zhui)齒輪加工(gong)工(gong)藝流(liu)程和難點控(kong)制(zhi)

為確保齒(chi)輪熱(re)處理(li)(li)時，能(neng)夠減小(xiao)變形并(bing)獲得均勻的組(zu)織(zhi)和(he)較(jiao)好的機械性(xing)能(neng)，在(zai)機加工(gong)(gong)(gong)前，先(xian) 對齒(chi)坯進行高溫(wen)正火(huo)(huo)(huo)預處理(li)(li)，可(ke)以使組(zu)織(zhi)得到細(xi)化，并(bing)減小(xiao)滲碳淬(cui)火(huo)(huo)(huo)時零件的變形，同時還有利(li)于(yu) 提高切削(xue)性(xing)能(neng)。正火(huo)(huo)(huo)后(hou)(hou)轉機加工(gong)(gong)(gong)，先(xian)在(zai)車床上(shang)對齒(chi)坯外圓、端面(mian)進行粗、精加工(gong)(gong)(gong)后(hou)(hou)，在(zai)臥式銑(xian)(xian)床上(shang)進 行銑(xian)(xian)齒(chi)，然后(hou)(hou)在(zai)插(cha)(cha)床上(shang)插(cha)(cha)鍵槽(cao)，全(quan)部機加工(gong)(gong)(gong)完成后(hou)(hou)，進行滲碳淬(cui)火(huo)(huo)(huo)和(he)低溫(wen)回火(huo)(huo)(huo)處理(li)(li)，進行后(hou)(hou)序處 理(li)(li)。該零件的工(gong)(gong)(gong)藝流(liu)程為：正火(huo)(huo)(huo)→車削(xue)→銑(xian)(xian)齒(chi)→插(cha)(cha)鍵槽(cao)→滲碳淬(cui)火(huo)(huo)(huo)及退火(huo)(huo)(huo)→噴(pen)砂→防(fang)銹處理(li)(li)。工(gong)(gong)(gong)藝難點(dian)為銑(xian)(xian)齒(chi)和(he)熱(re)處理(li)(li)工(gong)(gong)(gong)序。