拖泵制(zhi)造工藝

錐齒輪(lun)加工(gong)(gong)工(gong)(gong)藝流程和(he)難點控(kong)制

為(wei)確保齒(chi)輪(lun)熱(re)處理(li)(li)時，能夠減小(xiao)變形(xing)并獲得(de)(de)均勻(yun)的組織和(he)較好的機(ji)械性能，在機(ji)加工(gong)(gong)前，先 對齒(chi)坯進行(xing)(xing)高(gao)溫正火(huo)(huo)(huo)(huo)預(yu)處理(li)(li)，可以使組織得(de)(de)到(dao)細化(hua)，并減小(xiao)滲碳(tan)淬(cui)火(huo)(huo)(huo)(huo)時零件的變形(xing)，同時還(huan)有利于 提(ti)高(gao)切(qie)削性能。正火(huo)(huo)(huo)(huo)后(hou)轉機(ji)加工(gong)(gong)，先在車(che)(che)床上對齒(chi)坯外圓、端面進行(xing)(xing)粗、精加工(gong)(gong)后(hou)，在臥(wo)式銑床上進 行(xing)(xing)銑齒(chi)，然(ran)后(hou)在插(cha)床上插(cha)鍵槽，全部機(ji)加工(gong)(gong)完成后(hou)，進行(xing)(xing)滲碳(tan)淬(cui)火(huo)(huo)(huo)(huo)和(he)低溫回火(huo)(huo)(huo)(huo)處理(li)(li)，進行(xing)(xing)后(hou)序處 理(li)(li)。該(gai)零件的工(gong)(gong)藝流程(cheng)為(wei)：正火(huo)(huo)(huo)(huo)→車(che)(che)削→銑齒(chi)→插(cha)鍵槽→滲碳(tan)淬(cui)火(huo)(huo)(huo)(huo)及(ji)退火(huo)(huo)(huo)(huo)→噴砂→防銹(xiu)處理(li)(li)。工(gong)(gong)藝難點(dian)為(wei)銑齒(chi)和(he)熱(re)處理(li)(li)工(gong)(gong)序。