拖(tuo)泵制造工藝

錐齒輪加工工藝流程和難(nan)點(dian)控(kong)制

為確保(bao)齒(chi)(chi)輪熱處(chu)(chu)理(li)(li)時，能夠(gou)減(jian)小變(bian)形并獲得均勻的組(zu)織和較(jiao)好(hao)的機械性(xing)能，在機加工(gong)(gong)前，先(xian) 對齒(chi)(chi)坯進(jin)(jin)行(xing)高(gao)溫正(zheng)火(huo)(huo)預處(chu)(chu)理(li)(li)，可以(yi)使組(zu)織得到細(xi)化，并減(jian)小滲碳淬火(huo)(huo)時零(ling)件的變(bian)形，同時還有利于 提高(gao)切(qie)削性(xing)能。正(zheng)火(huo)(huo)后(hou)轉機加工(gong)(gong)，先(xian)在車(che)床(chuang)上(shang)(shang)對齒(chi)(chi)坯外(wai)圓、端面進(jin)(jin)行(xing)粗、精(jing)加工(gong)(gong)后(hou)，在臥式銑床(chuang)上(shang)(shang)進(jin)(jin) 行(xing)銑齒(chi)(chi)，然后(hou)在插(cha)床(chuang)上(shang)(shang)插(cha)鍵(jian)槽(cao)，全部機加工(gong)(gong)完成后(hou)，進(jin)(jin)行(xing)滲碳淬火(huo)(huo)和低溫回火(huo)(huo)處(chu)(chu)理(li)(li)，進(jin)(jin)行(xing)后(hou)序處(chu)(chu) 理(li)(li)。該零(ling)件的工(gong)(gong)藝流程為：正(zheng)火(huo)(huo)→車(che)削→銑齒(chi)(chi)→插(cha)鍵(jian)槽(cao)→滲碳淬火(huo)(huo)及退火(huo)(huo)→噴(pen)砂→防銹處(chu)(chu)理(li)(li)。工(gong)(gong)藝難點為銑齒(chi)(chi)和熱處(chu)(chu)理(li)(li)工(gong)(gong)序。