拖泵制造工藝(yi)

錐(zhui)齒輪加工(gong)工(gong)藝流程和(he)難點控制

為(wei)確保齒輪熱(re)處理(li)(li)(li)時，能夠減小(xiao)變(bian)形(xing)(xing)并獲得(de)均勻的(de)組織和(he)(he)較好的(de)機(ji)械性(xing)(xing)能，在機(ji)加(jia)工(gong)(gong)前，先 對齒坯進行高溫(wen)正(zheng)(zheng)火預處理(li)(li)(li)，可(ke)以使組織得(de)到細化，并減小(xiao)滲碳(tan)(tan)(tan)淬(cui)火時零件(jian)的(de)變(bian)形(xing)(xing)，同時還有(you)利于 提高切(qie)削性(xing)(xing)能。正(zheng)(zheng)火后轉機(ji)加(jia)工(gong)(gong)，先在車床上對齒坯外(wai)圓、端面(mian)進行粗、精(jing)加(jia)工(gong)(gong)后，在臥式銑(xian)(xian)床上進 行銑(xian)(xian)齒，然后在插床上插鍵槽，全部機(ji)加(jia)工(gong)(gong)完成后，進行滲碳(tan)(tan)(tan)淬(cui)火和(he)(he)低溫(wen)回(hui)火處理(li)(li)(li)，進行后序(xu)處 理(li)(li)(li)。該(gai)零件(jian)的(de)工(gong)(gong)藝(yi)(yi)流程為(wei)：正(zheng)(zheng)火→車削→銑(xian)(xian)齒→插鍵槽→滲碳(tan)(tan)(tan)淬(cui)火及退火→噴砂→防銹處理(li)(li)(li)。工(gong)(gong)藝(yi)(yi)難(nan)點為(wei)銑(xian)(xian)齒和(he)(he)熱(re)處理(li)(li)(li)工(gong)(gong)序(xu)。