拖(tuo)泵制造(zao)工(gong)藝

錐齒(chi)輪加工工藝流(liu)程和難點控制

為(wei)(wei)確保齒(chi)輪熱處(chu)理(li)(li)時，能夠減小變形(xing)并獲得均勻(yun)的組織和(he)較好的機械性(xing)能，在(zai)機加(jia)工(gong)(gong)前，先(xian) 對(dui)齒(chi)坯進(jin)行(xing)高(gao)溫正(zheng)火(huo)(huo)預處(chu)理(li)(li)，可(ke)以使組織得到(dao)細(xi)化，并減小滲碳淬(cui)(cui)火(huo)(huo)時零件(jian)的變形(xing)，同時還有利于 提(ti)高(gao)切削性(xing)能。正(zheng)火(huo)(huo)后轉(zhuan)機加(jia)工(gong)(gong)，先(xian)在(zai)車(che)床上(shang)(shang)對(dui)齒(chi)坯外圓、端面進(jin)行(xing)粗(cu)、精加(jia)工(gong)(gong)后，在(zai)臥式銑床上(shang)(shang)進(jin) 行(xing)銑齒(chi)，然(ran)后在(zai)插床上(shang)(shang)插鍵槽，全部機加(jia)工(gong)(gong)完成(cheng)后，進(jin)行(xing)滲碳淬(cui)(cui)火(huo)(huo)和(he)低溫回(hui)火(huo)(huo)處(chu)理(li)(li)，進(jin)行(xing)后序(xu)處(chu) 理(li)(li)。該零件(jian)的工(gong)(gong)藝流程(cheng)為(wei)(wei)：正(zheng)火(huo)(huo)→車(che)削→銑齒(chi)→插鍵槽→滲碳淬(cui)(cui)火(huo)(huo)及退火(huo)(huo)→噴砂→防銹處(chu)理(li)(li)。工(gong)(gong)藝難點(dian)為(wei)(wei)銑齒(chi)和(he)熱處(chu)理(li)(li)工(gong)(gong)序(xu)。