拖泵(beng)制造工藝

錐齒輪加(jia)工(gong)(gong)工(gong)(gong)藝流程和(he)難點控制

為確保齒(chi)輪熱(re)處理(li)時，能(neng)夠減(jian)小(xiao)變形并獲得(de)均勻(yun)的(de)組織和較好(hao)的(de)機(ji)械性能(neng)，在機(ji)加(jia)工(gong)(gong)前(qian)，先 對齒(chi)坯進(jin)行(xing)(xing)高溫正(zheng)火(huo)(huo)(huo)(huo)預處理(li)，可以使組織得(de)到細化(hua)，并減(jian)小(xiao)滲碳(tan)淬火(huo)(huo)(huo)(huo)時零件的(de)變形，同時還有利于 提高切削性能(neng)。正(zheng)火(huo)(huo)(huo)(huo)后(hou)轉(zhuan)機(ji)加(jia)工(gong)(gong)，先在車(che)床上(shang)對齒(chi)坯外圓(yuan)、端(duan)面(mian)進(jin)行(xing)(xing)粗、精加(jia)工(gong)(gong)后(hou)，在臥式(shi)銑床上(shang)進(jin) 行(xing)(xing)銑齒(chi)，然后(hou)在插床上(shang)插鍵槽(cao)，全部機(ji)加(jia)工(gong)(gong)完(wan)成后(hou)，進(jin)行(xing)(xing)滲碳(tan)淬火(huo)(huo)(huo)(huo)和低溫回火(huo)(huo)(huo)(huo)處理(li)，進(jin)行(xing)(xing)后(hou)序處 理(li)。該零件的(de)工(gong)(gong)藝流程為：正(zheng)火(huo)(huo)(huo)(huo)→車(che)削→銑齒(chi)→插鍵槽(cao)→滲碳(tan)淬火(huo)(huo)(huo)(huo)及退火(huo)(huo)(huo)(huo)→噴砂→防(fang)銹處理(li)。工(gong)(gong)藝難點(dian)為銑齒(chi)和熱(re)處理(li)工(gong)(gong)序。