拖泵制造工藝

錐齒輪加工(gong)工(gong)藝流程和(he)難點控(kong)制

為(wei)(wei)(wei)確保(bao)齒輪熱處理(li)時(shi)(shi)，能夠減小(xiao)變形并獲(huo)得(de)均勻的(de)組織(zhi)(zhi)和(he)較好的(de)機械性(xing)能，在(zai)機加工(gong)(gong)前(qian)，先 對齒坯進行(xing)高溫正火(huo)(huo)預處理(li)，可(ke)以(yi)使組織(zhi)(zhi)得(de)到細(xi)化，并減小(xiao)滲碳淬火(huo)(huo)時(shi)(shi)零件的(de)變形，同時(shi)(shi)還(huan)有利于 提高切削性(xing)能。正火(huo)(huo)后轉機加工(gong)(gong)，先在(zai)車床上(shang)對齒坯外(wai)圓、端面進行(xing)粗、精加工(gong)(gong)后，在(zai)臥(wo)式(shi)銑床上(shang)進 行(xing)銑齒，然后在(zai)插床上(shang)插鍵(jian)槽，全部(bu)機加工(gong)(gong)完成后，進行(xing)滲碳淬火(huo)(huo)和(he)低溫回(hui)火(huo)(huo)處理(li)，進行(xing)后序處 理(li)。該零件的(de)工(gong)(gong)藝(yi)流程為(wei)(wei)(wei)：正火(huo)(huo)→車削→銑齒→插鍵(jian)槽→滲碳淬火(huo)(huo)及退火(huo)(huo)→噴砂→防(fang)銹(xiu)處理(li)。工(gong)(gong)藝(yi)難點為(wei)(wei)(wei)銑齒和(he)熱處理(li)工(gong)(gong)序。