拖泵制造工藝

錐齒輪加工(gong)工(gong)藝流(liu)程和難點控(kong)制(zhi)

為確保齒(chi)(chi)輪熱(re)處(chu)(chu)理(li)時(shi)，能夠(gou)減小變(bian)形并獲得均勻的組(zu)織和較好(hao)的機(ji)(ji)械(xie)性能，在機(ji)(ji)加(jia)工(gong)前，先 對齒(chi)(chi)坯進行(xing)(xing)高溫正火預處(chu)(chu)理(li)，可以使組(zu)織得到(dao)細化，并減小滲(shen)碳淬火時(shi)零(ling)(ling)件的變(bian)形，同時(shi)還(huan)有利于 提高切削性能。正火后(hou)(hou)轉(zhuan)機(ji)(ji)加(jia)工(gong)，先在車床(chuang)上對齒(chi)(chi)坯外(wai)圓、端面進行(xing)(xing)粗、精加(jia)工(gong)后(hou)(hou)，在臥式(shi)銑(xian)床(chuang)上進 行(xing)(xing)銑(xian)齒(chi)(chi)，然后(hou)(hou)在插床(chuang)上插鍵槽(cao)(cao)，全部機(ji)(ji)加(jia)工(gong)完(wan)成(cheng)后(hou)(hou)，進行(xing)(xing)滲(shen)碳淬火和低(di)溫回(hui)火處(chu)(chu)理(li)，進行(xing)(xing)后(hou)(hou)序處(chu)(chu) 理(li)。該零(ling)(ling)件的工(gong)藝流程為：正火→車削→銑(xian)齒(chi)(chi)→插鍵槽(cao)(cao)→滲(shen)碳淬火及退火→噴砂→防銹處(chu)(chu)理(li)。工(gong)藝難點為銑(xian)齒(chi)(chi)和熱(re)處(chu)(chu)理(li)工(gong)序。