拖(tuo)泵制(zhi)造工藝

錐齒輪加(jia)工(gong)工(gong)藝(yi)流程和難(nan)點控制(zhi)

為確保(bao)齒(chi)(chi)輪(lun)熱(re)處(chu)(chu)理(li)(li)時，能夠減小變(bian)形并獲(huo)得均勻的組織和(he)較好的機(ji)械(xie)性能，在機(ji)加(jia)工(gong)前(qian)，先 對齒(chi)(chi)坯(pi)進(jin)行(xing)(xing)高溫(wen)正(zheng)火(huo)(huo)預處(chu)(chu)理(li)(li)，可以使組織得到細化，并減小滲碳(tan)淬(cui)火(huo)(huo)時零件的變(bian)形，同(tong)時還(huan)有利于 提高切(qie)削性能。正(zheng)火(huo)(huo)后轉(zhuan)機(ji)加(jia)工(gong)，先在車床(chuang)上對齒(chi)(chi)坯(pi)外圓、端面(mian)進(jin)行(xing)(xing)粗、精(jing)加(jia)工(gong)后，在臥式(shi)銑(xian)床(chuang)上進(jin) 行(xing)(xing)銑(xian)齒(chi)(chi)，然后在插床(chuang)上插鍵槽，全部機(ji)加(jia)工(gong)完成后，進(jin)行(xing)(xing)滲碳(tan)淬(cui)火(huo)(huo)和(he)低溫(wen)回火(huo)(huo)處(chu)(chu)理(li)(li)，進(jin)行(xing)(xing)后序處(chu)(chu) 理(li)(li)。該零件的工(gong)藝流程為：正(zheng)火(huo)(huo)→車削→銑(xian)齒(chi)(chi)→插鍵槽→滲碳(tan)淬(cui)火(huo)(huo)及退(tui)火(huo)(huo)→噴砂→防銹處(chu)(chu)理(li)(li)。工(gong)藝難點為銑(xian)齒(chi)(chi)和(he)熱(re)處(chu)(chu)理(li)(li)工(gong)序。