拖泵制造工藝

錐齒輪加(jia)工工藝(yi)流程(cheng)和難點控制

為確保齒(chi)輪熱處(chu)(chu)理(li)(li)時，能(neng)夠減(jian)小變形(xing)(xing)并獲得均勻的組(zu)織和(he)較好(hao)的機械性(xing)能(neng)，在機加(jia)工(gong)(gong)前(qian)，先(xian) 對齒(chi)坯進(jin)行高溫(wen)正(zheng)火(huo)(huo)(huo)預處(chu)(chu)理(li)(li)，可以使組(zu)織得到細化，并減(jian)小滲(shen)碳淬火(huo)(huo)(huo)時零件(jian)的變形(xing)(xing)，同時還有利于 提高切削性(xing)能(neng)。正(zheng)火(huo)(huo)(huo)后(hou)轉機加(jia)工(gong)(gong)，先(xian)在車(che)床上(shang)對齒(chi)坯外圓(yuan)、端面進(jin)行粗、精加(jia)工(gong)(gong)后(hou)，在臥式銑(xian)床上(shang)進(jin) 行銑(xian)齒(chi)，然后(hou)在插(cha)床上(shang)插(cha)鍵槽，全部機加(jia)工(gong)(gong)完(wan)成后(hou)，進(jin)行滲(shen)碳淬火(huo)(huo)(huo)和(he)低溫(wen)回火(huo)(huo)(huo)處(chu)(chu)理(li)(li)，進(jin)行后(hou)序處(chu)(chu) 理(li)(li)。該零件(jian)的工(gong)(gong)藝流程為：正(zheng)火(huo)(huo)(huo)→車(che)削→銑(xian)齒(chi)→插(cha)鍵槽→滲(shen)碳淬火(huo)(huo)(huo)及(ji)退火(huo)(huo)(huo)→噴(pen)砂(sha)→防(fang)銹處(chu)(chu)理(li)(li)。工(gong)(gong)藝難點為銑(xian)齒(chi)和(he)熱處(chu)(chu)理(li)(li)工(gong)(gong)序。