拖泵制造工藝

錐齒(chi)輪加工工藝(yi)流程(cheng)和(he)難點控制

為(wei)確保齒(chi)(chi)輪熱處理時(shi)，能(neng)夠減小(xiao)變形并獲(huo)得均勻(yun)的(de)組(zu)織和較好的(de)機械性(xing)(xing)能(neng)，在(zai)(zai)機加工(gong)(gong)(gong)(gong)(gong)前，先(xian)(xian) 對齒(chi)(chi)坯(pi)進行高(gao)溫正火(huo)預處理，可以(yi)使組(zu)織得到細化，并減小(xiao)滲碳(tan)淬(cui)火(huo)時(shi)零件的(de)變形，同時(shi)還有利(li)于 提(ti)高(gao)切(qie)削(xue)性(xing)(xing)能(neng)。正火(huo)后(hou)(hou)轉機加工(gong)(gong)(gong)(gong)(gong)，先(xian)(xian)在(zai)(zai)車(che)床上對齒(chi)(chi)坯(pi)外(wai)圓、端面(mian)進行粗、精加工(gong)(gong)(gong)(gong)(gong)后(hou)(hou)，在(zai)(zai)臥式(shi)銑(xian)床上進 行銑(xian)齒(chi)(chi)，然后(hou)(hou)在(zai)(zai)插床上插鍵槽，全部機加工(gong)(gong)(gong)(gong)(gong)完成后(hou)(hou)，進行滲碳(tan)淬(cui)火(huo)和低溫回(hui)火(huo)處理，進行后(hou)(hou)序處 理。該零件的(de)工(gong)(gong)(gong)(gong)(gong)藝流程為(wei)：正火(huo)→車(che)削(xue)→銑(xian)齒(chi)(chi)→插鍵槽→滲碳(tan)淬(cui)火(huo)及退火(huo)→噴砂→防銹處理。工(gong)(gong)(gong)(gong)(gong)藝難點(dian)為(wei)銑(xian)齒(chi)(chi)和熱處理工(gong)(gong)(gong)(gong)(gong)序。