拖泵制造工藝(yi)

錐齒輪(lun)加工(gong)工(gong)藝流程和難點控制

為(wei)(wei)確保齒(chi)(chi)輪熱(re)處理(li)時，能(neng)夠減(jian)小變形并獲(huo)得均勻(yun)的(de)(de)組織和較好(hao)的(de)(de)機(ji)械性能(neng)，在(zai)機(ji)加工(gong)(gong)前，先 對齒(chi)(chi)坯(pi)進(jin)(jin)(jin)行(xing)(xing)高溫正(zheng)火(huo)預處理(li)，可(ke)以(yi)使組織得到細(xi)化，并減(jian)小滲(shen)(shen)碳淬火(huo)時零(ling)件的(de)(de)變形，同時還有利于 提高切削性能(neng)。正(zheng)火(huo)后(hou)(hou)(hou)轉機(ji)加工(gong)(gong)，先在(zai)車(che)(che)床(chuang)上(shang)對齒(chi)(chi)坯(pi)外圓(yuan)、端面進(jin)(jin)(jin)行(xing)(xing)粗、精加工(gong)(gong)后(hou)(hou)(hou)，在(zai)臥(wo)式銑(xian)床(chuang)上(shang)進(jin)(jin)(jin) 行(xing)(xing)銑(xian)齒(chi)(chi)，然后(hou)(hou)(hou)在(zai)插床(chuang)上(shang)插鍵槽(cao)，全部機(ji)加工(gong)(gong)完成后(hou)(hou)(hou)，進(jin)(jin)(jin)行(xing)(xing)滲(shen)(shen)碳淬火(huo)和低溫回火(huo)處理(li)，進(jin)(jin)(jin)行(xing)(xing)后(hou)(hou)(hou)序(xu)處 理(li)。該零(ling)件的(de)(de)工(gong)(gong)藝流(liu)程(cheng)為(wei)(wei)：正(zheng)火(huo)→車(che)(che)削→銑(xian)齒(chi)(chi)→插鍵槽(cao)→滲(shen)(shen)碳淬火(huo)及退(tui)火(huo)→噴砂→防(fang)銹處理(li)。工(gong)(gong)藝難(nan)點(dian)為(wei)(wei)銑(xian)齒(chi)(chi)和熱(re)處理(li)工(gong)(gong)序(xu)。