拖泵制造(zao)工藝

錐齒輪加(jia)工(gong)工(gong)藝流程和難點控制

為確保(bao)齒(chi)(chi)輪熱處(chu)理(li)時(shi)，能(neng)(neng)夠減(jian)小變形(xing)并(bing)獲得均勻的(de)(de)組(zu)織和較好的(de)(de)機(ji)械性(xing)能(neng)(neng)，在機(ji)加(jia)工(gong)前，先(xian) 對齒(chi)(chi)坯進(jin)(jin)行(xing)(xing)(xing)高溫(wen)正(zheng)火(huo)(huo)預處(chu)理(li)，可(ke)以使組(zu)織得到細化(hua)，并(bing)減(jian)小滲碳淬火(huo)(huo)時(shi)零件的(de)(de)變形(xing)，同時(shi)還有利于 提(ti)高切削性(xing)能(neng)(neng)。正(zheng)火(huo)(huo)后(hou)(hou)(hou)轉(zhuan)機(ji)加(jia)工(gong)，先(xian)在車(che)床(chuang)上(shang)對齒(chi)(chi)坯外圓、端面進(jin)(jin)行(xing)(xing)(xing)粗、精(jing)加(jia)工(gong)后(hou)(hou)(hou)，在臥(wo)式銑床(chuang)上(shang)進(jin)(jin) 行(xing)(xing)(xing)銑齒(chi)(chi)，然后(hou)(hou)(hou)在插床(chuang)上(shang)插鍵槽，全(quan)部機(ji)加(jia)工(gong)完(wan)成后(hou)(hou)(hou)，進(jin)(jin)行(xing)(xing)(xing)滲碳淬火(huo)(huo)和低溫(wen)回火(huo)(huo)處(chu)理(li)，進(jin)(jin)行(xing)(xing)(xing)后(hou)(hou)(hou)序處(chu) 理(li)。該零件的(de)(de)工(gong)藝流程(cheng)為：正(zheng)火(huo)(huo)→車(che)削→銑齒(chi)(chi)→插鍵槽→滲碳淬火(huo)(huo)及退火(huo)(huo)→噴砂→防(fang)銹處(chu)理(li)。工(gong)藝難(nan)點為銑齒(chi)(chi)和熱處(chu)理(li)工(gong)序。