拖泵制造工藝

錐(zhui)齒輪加(jia)工工藝(yi)流程和(he)難(nan)點控制

為確保齒(chi)(chi)輪熱處(chu)理(li)(li)時，能(neng)夠減小變形并(bing)獲(huo)得均勻的(de)組織(zhi)和(he)較(jiao)好(hao)的(de)機(ji)械性能(neng)，在(zai)機(ji)加(jia)工(gong)(gong)(gong)前，先 對齒(chi)(chi)坯進(jin)(jin)行(xing)(xing)高溫正火(huo)預處(chu)理(li)(li)，可以(yi)使組織(zhi)得到細化，并(bing)減小滲碳淬火(huo)時零件的(de)變形，同時還有利于 提高切(qie)削性能(neng)。正火(huo)后(hou)轉(zhuan)機(ji)加(jia)工(gong)(gong)(gong)，先在(zai)車床(chuang)上對齒(chi)(chi)坯外圓、端面(mian)進(jin)(jin)行(xing)(xing)粗、精加(jia)工(gong)(gong)(gong)后(hou)，在(zai)臥式銑床(chuang)上進(jin)(jin) 行(xing)(xing)銑齒(chi)(chi)，然后(hou)在(zai)插(cha)床(chuang)上插(cha)鍵槽，全部機(ji)加(jia)工(gong)(gong)(gong)完成后(hou)，進(jin)(jin)行(xing)(xing)滲碳淬火(huo)和(he)低溫回火(huo)處(chu)理(li)(li)，進(jin)(jin)行(xing)(xing)后(hou)序(xu)處(chu) 理(li)(li)。該零件的(de)工(gong)(gong)(gong)藝(yi)流程(cheng)為：正火(huo)→車削→銑齒(chi)(chi)→插(cha)鍵槽→滲碳淬火(huo)及退火(huo)→噴(pen)砂→防(fang)銹處(chu)理(li)(li)。工(gong)(gong)(gong)藝(yi)難點(dian)為銑齒(chi)(chi)和(he)熱處(chu)理(li)(li)工(gong)(gong)(gong)序(xu)。