拖泵制(zhi)造工(gong)藝

錐(zhui)齒輪加(jia)工工藝流程和難點控制(zhi)

為確保齒輪熱處(chu)理時(shi)(shi)，能夠(gou)減(jian)小變形并獲得(de)均勻(yun)的(de)組織和(he)較好的(de)機械性能，在(zai)機加(jia)工(gong)(gong)前，先 對齒坯進行(xing)高溫(wen)正火預(yu)處(chu)理，可以使組織得(de)到細化，并減(jian)小滲(shen)碳(tan)淬(cui)(cui)火時(shi)(shi)零件的(de)變形，同時(shi)(shi)還(huan)有利于 提高切削性能。正火后(hou)轉機加(jia)工(gong)(gong)，先在(zai)車(che)床(chuang)(chuang)上(shang)(shang)對齒坯外圓(yuan)、端面進行(xing)粗、精加(jia)工(gong)(gong)后(hou)，在(zai)臥(wo)式銑(xian)(xian)床(chuang)(chuang)上(shang)(shang)進 行(xing)銑(xian)(xian)齒，然(ran)后(hou)在(zai)插床(chuang)(chuang)上(shang)(shang)插鍵槽(cao)，全部(bu)機加(jia)工(gong)(gong)完成(cheng)后(hou)，進行(xing)滲(shen)碳(tan)淬(cui)(cui)火和(he)低溫(wen)回(hui)火處(chu)理，進行(xing)后(hou)序(xu)處(chu) 理。該零件的(de)工(gong)(gong)藝(yi)流程為：正火→車(che)削→銑(xian)(xian)齒→插鍵槽(cao)→滲(shen)碳(tan)淬(cui)(cui)火及退火→噴(pen)砂→防(fang)銹處(chu)理。工(gong)(gong)藝(yi)難點為銑(xian)(xian)齒和(he)熱處(chu)理工(gong)(gong)序(xu)。