拖泵制造工藝

錐齒(chi)輪加工工藝流程和難點(dian)控制

為(wei)確保(bao)齒(chi)輪(lun)熱(re)(re)處(chu)(chu)理時，能夠減(jian)小(xiao)變形并獲得(de)均勻的組織和較好的機(ji)械(xie)性(xing)(xing)能，在機(ji)加(jia)(jia)工(gong)前，先 對齒(chi)坯進行(xing)高(gao)溫正(zheng)火(huo)(huo)預處(chu)(chu)理，可以使組織得(de)到細(xi)化，并減(jian)小(xiao)滲(shen)碳淬(cui)(cui)火(huo)(huo)時零(ling)件(jian)的變形，同時還有利于 提高(gao)切削性(xing)(xing)能。正(zheng)火(huo)(huo)后轉機(ji)加(jia)(jia)工(gong)，先在車床(chuang)上對齒(chi)坯外圓、端面(mian)進行(xing)粗、精加(jia)(jia)工(gong)后，在臥式銑(xian)床(chuang)上進 行(xing)銑(xian)齒(chi)，然后在插(cha)床(chuang)上插(cha)鍵槽，全部機(ji)加(jia)(jia)工(gong)完(wan)成(cheng)后，進行(xing)滲(shen)碳淬(cui)(cui)火(huo)(huo)和低溫回火(huo)(huo)處(chu)(chu)理，進行(xing)后序處(chu)(chu) 理。該零(ling)件(jian)的工(gong)藝流(liu)程為(wei)：正(zheng)火(huo)(huo)→車削→銑(xian)齒(chi)→插(cha)鍵槽→滲(shen)碳淬(cui)(cui)火(huo)(huo)及退火(huo)(huo)→噴砂→防銹(xiu)處(chu)(chu)理。工(gong)藝難點(dian)為(wei)銑(xian)齒(chi)和熱(re)(re)處(chu)(chu)理工(gong)序。