拖泵(beng)制造工藝(yi)

錐齒輪加工(gong)工(gong)藝流程和難點控制(zhi)

為確保齒(chi)(chi)輪(lun)熱處理(li)(li)時，能(neng)夠(gou)減小變形并(bing)(bing)獲(huo)得均勻的(de)組(zu)織(zhi)和較好(hao)的(de)機(ji)械性能(neng)，在(zai)(zai)機(ji)加(jia)工(gong)(gong)前，先 對齒(chi)(chi)坯(pi)進(jin)行高溫(wen)正(zheng)(zheng)火預處理(li)(li)，可以(yi)使(shi)組(zu)織(zhi)得到(dao)細化，并(bing)(bing)減小滲(shen)碳(tan)淬(cui)火時零(ling)件的(de)變形，同時還有利于 提高切(qie)削性能(neng)。正(zheng)(zheng)火后(hou)轉機(ji)加(jia)工(gong)(gong)，先在(zai)(zai)車(che)(che)床(chuang)上對齒(chi)(chi)坯(pi)外圓、端面進(jin)行粗、精加(jia)工(gong)(gong)后(hou)，在(zai)(zai)臥式銑(xian)床(chuang)上進(jin) 行銑(xian)齒(chi)(chi)，然后(hou)在(zai)(zai)插床(chuang)上插鍵槽，全部(bu)機(ji)加(jia)工(gong)(gong)完成后(hou)，進(jin)行滲(shen)碳(tan)淬(cui)火和低(di)溫(wen)回(hui)火處理(li)(li)，進(jin)行后(hou)序處 理(li)(li)。該零(ling)件的(de)工(gong)(gong)藝流(liu)程為：正(zheng)(zheng)火→車(che)(che)削→銑(xian)齒(chi)(chi)→插鍵槽→滲(shen)碳(tan)淬(cui)火及退火→噴砂→防銹(xiu)處理(li)(li)。工(gong)(gong)藝難點(dian)為銑(xian)齒(chi)(chi)和熱處理(li)(li)工(gong)(gong)序。