拖泵制(zhi)造工藝

錐齒輪加工工藝流程和(he)難點控制

為確保(bao)齒(chi)(chi)(chi)輪(lun)熱處理(li)時(shi)，能夠減小變形(xing)并(bing)獲得均(jun)勻的組(zu)織和(he)(he)較好的機(ji)械性(xing)能，在機(ji)加(jia)(jia)工(gong)(gong)前(qian)，先(xian) 對齒(chi)(chi)(chi)坯進(jin)行(xing)高(gao)溫正火預處理(li)，可以使組(zu)織得到細化，并(bing)減小滲(shen)碳淬(cui)火時(shi)零(ling)件的變形(xing)，同(tong)時(shi)還(huan)有(you)利于 提(ti)高(gao)切削性(xing)能。正火后(hou)(hou)轉機(ji)加(jia)(jia)工(gong)(gong)，先(xian)在車床(chuang)上對齒(chi)(chi)(chi)坯外圓、端(duan)面進(jin)行(xing)粗、精加(jia)(jia)工(gong)(gong)后(hou)(hou)，在臥式銑床(chuang)上進(jin) 行(xing)銑齒(chi)(chi)(chi)，然后(hou)(hou)在插床(chuang)上插鍵(jian)槽，全部機(ji)加(jia)(jia)工(gong)(gong)完成后(hou)(hou)，進(jin)行(xing)滲(shen)碳淬(cui)火和(he)(he)低溫回火處理(li)，進(jin)行(xing)后(hou)(hou)序處 理(li)。該零(ling)件的工(gong)(gong)藝流(liu)程(cheng)為：正火→車削→銑齒(chi)(chi)(chi)→插鍵(jian)槽→滲(shen)碳淬(cui)火及退火→噴(pen)砂→防(fang)銹處理(li)。工(gong)(gong)藝難點為銑齒(chi)(chi)(chi)和(he)(he)熱處理(li)工(gong)(gong)序。