拖泵制造工藝

錐齒(chi)輪(lun)加工工藝流程(cheng)和難點控制

為確保齒(chi)(chi)輪(lun)熱(re)處理(li)(li)時，能(neng)夠減(jian)小變形(xing)(xing)并獲(huo)得(de)均(jun)勻的組織(zhi)和較好的機械性(xing)能(neng)，在機加(jia)工(gong)(gong)前，先(xian) 對(dui)齒(chi)(chi)坯進行(xing)高溫正(zheng)(zheng)火(huo)(huo)(huo)預(yu)處理(li)(li)，可以使(shi)組織(zhi)得(de)到細化(hua)，并減(jian)小滲碳(tan)淬(cui)(cui)火(huo)(huo)(huo)時零件(jian)的變形(xing)(xing)，同時還有利于 提(ti)高切削(xue)性(xing)能(neng)。正(zheng)(zheng)火(huo)(huo)(huo)后(hou)(hou)(hou)轉機加(jia)工(gong)(gong)，先(xian)在車床(chuang)上對(dui)齒(chi)(chi)坯外圓、端面進行(xing)粗、精(jing)加(jia)工(gong)(gong)后(hou)(hou)(hou)，在臥式銑(xian)床(chuang)上進 行(xing)銑(xian)齒(chi)(chi)，然后(hou)(hou)(hou)在插床(chuang)上插鍵槽，全部機加(jia)工(gong)(gong)完成后(hou)(hou)(hou)，進行(xing)滲碳(tan)淬(cui)(cui)火(huo)(huo)(huo)和低溫回火(huo)(huo)(huo)處理(li)(li)，進行(xing)后(hou)(hou)(hou)序(xu)處 理(li)(li)。該零件(jian)的工(gong)(gong)藝流程為：正(zheng)(zheng)火(huo)(huo)(huo)→車削(xue)→銑(xian)齒(chi)(chi)→插鍵槽→滲碳(tan)淬(cui)(cui)火(huo)(huo)(huo)及(ji)退火(huo)(huo)(huo)→噴砂→防銹處理(li)(li)。工(gong)(gong)藝難點為銑(xian)齒(chi)(chi)和熱(re)處理(li)(li)工(gong)(gong)序(xu)。