拖泵制造工藝

錐齒輪加(jia)工工藝流程和難點控制

為確保齒(chi)(chi)輪熱處理(li)時(shi)，能(neng)夠(gou)減小(xiao)變(bian)形(xing)并獲得均(jun)勻的(de)組(zu)織和較好(hao)的(de)機械(xie)性能(neng)，在(zai)機加(jia)工(gong)(gong)(gong)前，先(xian) 對(dui)齒(chi)(chi)坯進(jin)(jin)行高溫正(zheng)火(huo)(huo)預處理(li)，可以使組(zu)織得到細化，并減小(xiao)滲碳(tan)(tan)淬火(huo)(huo)時(shi)零件(jian)的(de)變(bian)形(xing)，同(tong)時(shi)還有利(li)于 提高切削性能(neng)。正(zheng)火(huo)(huo)后(hou)轉機加(jia)工(gong)(gong)(gong)，先(xian)在(zai)車(che)床(chuang)上(shang)對(dui)齒(chi)(chi)坯外圓(yuan)、端面進(jin)(jin)行粗、精加(jia)工(gong)(gong)(gong)后(hou)，在(zai)臥式銑(xian)(xian)床(chuang)上(shang)進(jin)(jin) 行銑(xian)(xian)齒(chi)(chi)，然后(hou)在(zai)插床(chuang)上(shang)插鍵(jian)(jian)槽(cao)，全部(bu)機加(jia)工(gong)(gong)(gong)完成后(hou)，進(jin)(jin)行滲碳(tan)(tan)淬火(huo)(huo)和低溫回火(huo)(huo)處理(li)，進(jin)(jin)行后(hou)序(xu)處 理(li)。該零件(jian)的(de)工(gong)(gong)(gong)藝流(liu)程為：正(zheng)火(huo)(huo)→車(che)削→銑(xian)(xian)齒(chi)(chi)→插鍵(jian)(jian)槽(cao)→滲碳(tan)(tan)淬火(huo)(huo)及退火(huo)(huo)→噴砂→防銹處理(li)。工(gong)(gong)(gong)藝難點(dian)為銑(xian)(xian)齒(chi)(chi)和熱處理(li)工(gong)(gong)(gong)序(xu)。