拖泵(beng)制造工藝

錐齒(chi)輪加(jia)工(gong)工(gong)藝流程和難點(dian)控制

為(wei)確(que)保(bao)齒輪(lun)熱處(chu)理(li)(li)時，能(neng)夠減小變形并獲得均(jun)勻的組織和較(jiao)好的機(ji)械性能(neng)，在機(ji)加工(gong)(gong)(gong)前，先 對齒坯(pi)進(jin)(jin)行高溫正(zheng)火(huo)(huo)(huo)預處(chu)理(li)(li)，可以使組織得到(dao)細化(hua)，并減小滲(shen)(shen)碳淬火(huo)(huo)(huo)時零件的變形，同時還有利于 提高切削性能(neng)。正(zheng)火(huo)(huo)(huo)后(hou)轉(zhuan)機(ji)加工(gong)(gong)(gong)，先在車床上(shang)對齒坯(pi)外(wai)圓(yuan)、端面(mian)進(jin)(jin)行粗(cu)、精加工(gong)(gong)(gong)后(hou)，在臥式(shi)銑(xian)床上(shang)進(jin)(jin) 行銑(xian)齒，然后(hou)在插床上(shang)插鍵(jian)槽，全(quan)部機(ji)加工(gong)(gong)(gong)完成后(hou)，進(jin)(jin)行滲(shen)(shen)碳淬火(huo)(huo)(huo)和低(di)溫回火(huo)(huo)(huo)處(chu)理(li)(li)，進(jin)(jin)行后(hou)序(xu)處(chu) 理(li)(li)。該零件的工(gong)(gong)(gong)藝流程為(wei)：正(zheng)火(huo)(huo)(huo)→車削→銑(xian)齒→插鍵(jian)槽→滲(shen)(shen)碳淬火(huo)(huo)(huo)及退火(huo)(huo)(huo)→噴砂→防銹處(chu)理(li)(li)。工(gong)(gong)(gong)藝難點為(wei)銑(xian)齒和熱處(chu)理(li)(li)工(gong)(gong)(gong)序(xu)。