拖泵制造工藝

錐(zhui)齒(chi)輪加工工藝流(liu)程(cheng)和難點控制

為確保齒(chi)(chi)(chi)(chi)(chi)輪熱(re)處理(li)時(shi)(shi)，能夠(gou)減小變形(xing)并獲得均勻的(de)(de)組織和較好的(de)(de)機(ji)械性能，在機(ji)加(jia)工(gong)(gong)前，先(xian) 對(dui)齒(chi)(chi)(chi)(chi)(chi)坯進(jin)(jin)(jin)行高溫正火(huo)(huo)(huo)(huo)預(yu)處理(li)，可以(yi)使組織得到細化(hua)，并減小滲碳淬(cui)火(huo)(huo)(huo)(huo)時(shi)(shi)零件的(de)(de)變形(xing)，同(tong)時(shi)(shi)還(huan)有(you)利于 提高切削性能。正火(huo)(huo)(huo)(huo)后(hou)轉機(ji)加(jia)工(gong)(gong)，先(xian)在車床(chuang)上(shang)對(dui)齒(chi)(chi)(chi)(chi)(chi)坯外圓、端面進(jin)(jin)(jin)行粗、精加(jia)工(gong)(gong)后(hou)，在臥式銑(xian)床(chuang)上(shang)進(jin)(jin)(jin) 行銑(xian)齒(chi)(chi)(chi)(chi)(chi)，然后(hou)在插(cha)床(chuang)上(shang)插(cha)鍵槽，全部機(ji)加(jia)工(gong)(gong)完成后(hou)，進(jin)(jin)(jin)行滲碳淬(cui)火(huo)(huo)(huo)(huo)和低溫回火(huo)(huo)(huo)(huo)處理(li)，進(jin)(jin)(jin)行后(hou)序處 理(li)。該(gai)零件的(de)(de)工(gong)(gong)藝流程為：正火(huo)(huo)(huo)(huo)→車削→銑(xian)齒(chi)(chi)(chi)(chi)(chi)→插(cha)鍵槽→滲碳淬(cui)火(huo)(huo)(huo)(huo)及退火(huo)(huo)(huo)(huo)→噴(pen)砂→防銹處理(li)。工(gong)(gong)藝難點為銑(xian)齒(chi)(chi)(chi)(chi)(chi)和熱(re)處理(li)工(gong)(gong)序。