拖泵制造工藝

錐齒輪加工工藝流程和難點控制

為確保齒(chi)輪(lun)熱(re)處理時(shi)，能(neng)夠減(jian)(jian)小變(bian)形并獲得均(jun)勻的(de)組織和較(jiao)好的(de)機(ji)(ji)械性(xing)能(neng)，在機(ji)(ji)加(jia)工(gong)前，先 對(dui)齒(chi)坯進(jin)(jin)行(xing)高溫正火(huo)預(yu)處理，可以使組織得到細化(hua)，并減(jian)(jian)小滲(shen)碳(tan)淬(cui)(cui)火(huo)時(shi)零件(jian)的(de)變(bian)形，同時(shi)還有利于(yu) 提高切削(xue)性(xing)能(neng)。正火(huo)后(hou)(hou)轉機(ji)(ji)加(jia)工(gong)，先在車床(chuang)上對(dui)齒(chi)坯外(wai)圓、端面進(jin)(jin)行(xing)粗、精加(jia)工(gong)后(hou)(hou)，在臥式(shi)銑(xian)(xian)(xian)床(chuang)上進(jin)(jin) 行(xing)銑(xian)(xian)(xian)齒(chi)，然后(hou)(hou)在插床(chuang)上插鍵槽，全(quan)部(bu)機(ji)(ji)加(jia)工(gong)完成后(hou)(hou)，進(jin)(jin)行(xing)滲(shen)碳(tan)淬(cui)(cui)火(huo)和低(di)溫回火(huo)處理，進(jin)(jin)行(xing)后(hou)(hou)序處 理。該零件(jian)的(de)工(gong)藝流(liu)程為：正火(huo)→車削(xue)→銑(xian)(xian)(xian)齒(chi)→插鍵槽→滲(shen)碳(tan)淬(cui)(cui)火(huo)及退火(huo)→噴砂→防銹(xiu)處理。工(gong)藝難點為銑(xian)(xian)(xian)齒(chi)和熱(re)處理工(gong)序。