拖泵制造工(gong)藝

錐齒輪加工工藝流程和難點控制

為(wei)(wei)確保齒(chi)輪熱處理(li)(li)時(shi)，能(neng)夠減小(xiao)變(bian)(bian)形并獲得均勻的(de)(de)組(zu)織和較(jiao)好的(de)(de)機械性(xing)能(neng)，在機加(jia)工(gong)(gong)(gong)(gong)前，先 對齒(chi)坯進(jin)(jin)行高溫(wen)正(zheng)火(huo)(huo)預處理(li)(li)，可以使組(zu)織得到細化，并減小(xiao)滲(shen)碳淬火(huo)(huo)時(shi)零件的(de)(de)變(bian)(bian)形，同時(shi)還有利于(yu) 提高切削性(xing)能(neng)。正(zheng)火(huo)(huo)后(hou)(hou)轉機加(jia)工(gong)(gong)(gong)(gong)，先在車床(chuang)上(shang)對齒(chi)坯外圓(yuan)、端面進(jin)(jin)行粗、精加(jia)工(gong)(gong)(gong)(gong)后(hou)(hou)，在臥式銑床(chuang)上(shang)進(jin)(jin) 行銑齒(chi)，然后(hou)(hou)在插(cha)床(chuang)上(shang)插(cha)鍵槽，全部機加(jia)工(gong)(gong)(gong)(gong)完(wan)成后(hou)(hou)，進(jin)(jin)行滲(shen)碳淬火(huo)(huo)和低溫(wen)回火(huo)(huo)處理(li)(li)，進(jin)(jin)行后(hou)(hou)序(xu)處 理(li)(li)。該零件的(de)(de)工(gong)(gong)(gong)(gong)藝流程為(wei)(wei)：正(zheng)火(huo)(huo)→車削→銑齒(chi)→插(cha)鍵槽→滲(shen)碳淬火(huo)(huo)及退火(huo)(huo)→噴砂→防銹處理(li)(li)。工(gong)(gong)(gong)(gong)藝難點為(wei)(wei)銑齒(chi)和熱處理(li)(li)工(gong)(gong)(gong)(gong)序(xu)。