拖泵(beng)制造工藝

錐齒輪加工工藝流程和難(nan)點控制

為確保齒(chi)(chi)輪熱處理(li)(li)時，能夠減小變形(xing)并獲得均勻的(de)組(zu)織和(he)較(jiao)好的(de)機械性(xing)能，在(zai)(zai)機加(jia)(jia)工(gong)(gong)前，先(xian) 對(dui)齒(chi)(chi)坯進(jin)行(xing)(xing)高溫(wen)正火(huo)預處理(li)(li)，可以使組(zu)織得到細化，并減小滲碳(tan)淬火(huo)時零件的(de)變形(xing)，同(tong)時還有利(li)于 提高切削性(xing)能。正火(huo)后(hou)轉機加(jia)(jia)工(gong)(gong)，先(xian)在(zai)(zai)車(che)床上對(dui)齒(chi)(chi)坯外圓、端面進(jin)行(xing)(xing)粗、精加(jia)(jia)工(gong)(gong)后(hou)，在(zai)(zai)臥式銑(xian)(xian)床上進(jin) 行(xing)(xing)銑(xian)(xian)齒(chi)(chi)，然后(hou)在(zai)(zai)插床上插鍵(jian)槽，全(quan)部機加(jia)(jia)工(gong)(gong)完成后(hou)，進(jin)行(xing)(xing)滲碳(tan)淬火(huo)和(he)低溫(wen)回火(huo)處理(li)(li)，進(jin)行(xing)(xing)后(hou)序處 理(li)(li)。該(gai)零件的(de)工(gong)(gong)藝流程為：正火(huo)→車(che)削→銑(xian)(xian)齒(chi)(chi)→插鍵(jian)槽→滲碳(tan)淬火(huo)及退火(huo)→噴砂→防(fang)銹處理(li)(li)。工(gong)(gong)藝難點(dian)為銑(xian)(xian)齒(chi)(chi)和(he)熱處理(li)(li)工(gong)(gong)序。