拖泵制造工藝

錐齒輪加工工藝流(liu)程和難點控制

為確保齒(chi)輪熱處(chu)理(li)(li)時(shi)，能(neng)夠減(jian)(jian)小(xiao)變形并(bing)獲得(de)均勻的(de)組織和(he)較好(hao)的(de)機(ji)械性(xing)能(neng)，在機(ji)加(jia)工(gong)(gong)(gong)前，先 對齒(chi)坯(pi)進行高溫正(zheng)火預處(chu)理(li)(li)，可以使組織得(de)到細化，并(bing)減(jian)(jian)小(xiao)滲碳(tan)淬(cui)火時(shi)零件的(de)變形，同時(shi)還有利于 提(ti)高切(qie)削性(xing)能(neng)。正(zheng)火后轉機(ji)加(jia)工(gong)(gong)(gong)，先在車(che)床上(shang)對齒(chi)坯(pi)外(wai)圓、端面進行粗、精加(jia)工(gong)(gong)(gong)后，在臥式銑(xian)(xian)床上(shang)進 行銑(xian)(xian)齒(chi)，然(ran)后在插(cha)床上(shang)插(cha)鍵槽(cao)，全部機(ji)加(jia)工(gong)(gong)(gong)完成后，進行滲碳(tan)淬(cui)火和(he)低溫回火處(chu)理(li)(li)，進行后序處(chu) 理(li)(li)。該零件的(de)工(gong)(gong)(gong)藝流程為：正(zheng)火→車(che)削→銑(xian)(xian)齒(chi)→插(cha)鍵槽(cao)→滲碳(tan)淬(cui)火及退火→噴砂(sha)→防(fang)銹(xiu)處(chu)理(li)(li)。工(gong)(gong)(gong)藝難(nan)點為銑(xian)(xian)齒(chi)和(he)熱處(chu)理(li)(li)工(gong)(gong)(gong)序。