拖泵制造(zao)工藝

錐齒輪加工(gong)工(gong)藝流程和難點控制

為(wei)確保齒(chi)輪熱(re)處(chu)理(li)時，能夠減小(xiao)變形并獲得(de)均勻(yun)的組織(zhi)(zhi)和(he)較好(hao)的機(ji)械性能，在(zai)機(ji)加工(gong)(gong)(gong)前，先 對齒(chi)坯進(jin)(jin)(jin)行(xing)高(gao)溫(wen)正(zheng)(zheng)火(huo)預處(chu)理(li)，可(ke)以使組織(zhi)(zhi)得(de)到細化，并減小(xiao)滲碳淬火(huo)時零(ling)(ling)件(jian)的變形，同時還有利于 提高(gao)切削性能。正(zheng)(zheng)火(huo)后轉機(ji)加工(gong)(gong)(gong)，先在(zai)車(che)床上對齒(chi)坯外圓、端面進(jin)(jin)(jin)行(xing)粗、精加工(gong)(gong)(gong)后，在(zai)臥式(shi)銑床上進(jin)(jin)(jin) 行(xing)銑齒(chi)，然后在(zai)插床上插鍵槽(cao)，全部機(ji)加工(gong)(gong)(gong)完成(cheng)后，進(jin)(jin)(jin)行(xing)滲碳淬火(huo)和(he)低溫(wen)回火(huo)處(chu)理(li)，進(jin)(jin)(jin)行(xing)后序(xu)處(chu) 理(li)。該零(ling)(ling)件(jian)的工(gong)(gong)(gong)藝(yi)流程為(wei)：正(zheng)(zheng)火(huo)→車(che)削→銑齒(chi)→插鍵槽(cao)→滲碳淬火(huo)及退火(huo)→噴(pen)砂(sha)→防銹處(chu)理(li)。工(gong)(gong)(gong)藝(yi)難點為(wei)銑齒(chi)和(he)熱(re)處(chu)理(li)工(gong)(gong)(gong)序(xu)。