拖泵制(zhi)造工藝(yi)

錐齒輪加工(gong)工(gong)藝流程和難點控制

為(wei)確保(bao)齒(chi)輪熱處(chu)理時，能夠減(jian)小(xiao)(xiao)變(bian)(bian)形并(bing)獲得(de)均勻(yun)的(de)組織(zhi)和(he)(he)較好的(de)機械(xie)性能，在機加(jia)工(gong)(gong)(gong)前，先(xian) 對齒(chi)坯進(jin)(jin)行高(gao)溫正火(huo)預處(chu)理，可以使組織(zhi)得(de)到細化，并(bing)減(jian)小(xiao)(xiao)滲碳(tan)淬(cui)火(huo)時零(ling)件的(de)變(bian)(bian)形，同時還有利于 提(ti)高(gao)切削(xue)性能。正火(huo)后轉機加(jia)工(gong)(gong)(gong)，先(xian)在車床上對齒(chi)坯外圓、端面進(jin)(jin)行粗、精加(jia)工(gong)(gong)(gong)后，在臥式銑床上進(jin)(jin) 行銑齒(chi)，然后在插(cha)床上插(cha)鍵(jian)槽，全部機加(jia)工(gong)(gong)(gong)完成后，進(jin)(jin)行滲碳(tan)淬(cui)火(huo)和(he)(he)低溫回火(huo)處(chu)理，進(jin)(jin)行后序處(chu) 理。該零(ling)件的(de)工(gong)(gong)(gong)藝流程為(wei)：正火(huo)→車削(xue)→銑齒(chi)→插(cha)鍵(jian)槽→滲碳(tan)淬(cui)火(huo)及(ji)退火(huo)→噴砂→防銹處(chu)理。工(gong)(gong)(gong)藝難(nan)點為(wei)銑齒(chi)和(he)(he)熱處(chu)理工(gong)(gong)(gong)序。