拖泵制造工藝

錐(zhui)齒輪(lun)加工工藝(yi)流程(cheng)和難點控(kong)制

為(wei)確保齒輪熱處(chu)理(li)(li)(li)時，能夠減小變形并獲得均勻(yun)的組織和(he)較(jiao)好的機械性能，在機加(jia)工(gong)(gong)前(qian)，先(xian) 對齒坯進(jin)行(xing)(xing)高(gao)溫(wen)正(zheng)火(huo)預處(chu)理(li)(li)(li)，可以使組織得到細化(hua)，并減小滲(shen)(shen)碳淬火(huo)時零件(jian)的變形，同時還有利(li)于 提高(gao)切削性能。正(zheng)火(huo)后轉(zhuan)機加(jia)工(gong)(gong)，先(xian)在車床上對齒坯外圓、端面(mian)進(jin)行(xing)(xing)粗、精加(jia)工(gong)(gong)后，在臥(wo)式銑床上進(jin) 行(xing)(xing)銑齒，然后在插(cha)床上插(cha)鍵槽，全(quan)部(bu)機加(jia)工(gong)(gong)完成后，進(jin)行(xing)(xing)滲(shen)(shen)碳淬火(huo)和(he)低溫(wen)回火(huo)處(chu)理(li)(li)(li)，進(jin)行(xing)(xing)后序處(chu) 理(li)(li)(li)。該零件(jian)的工(gong)(gong)藝(yi)流(liu)程為(wei)：正(zheng)火(huo)→車削→銑齒→插(cha)鍵槽→滲(shen)(shen)碳淬火(huo)及退(tui)火(huo)→噴(pen)砂(sha)→防銹(xiu)處(chu)理(li)(li)(li)。工(gong)(gong)藝(yi)難點為(wei)銑齒和(he)熱處(chu)理(li)(li)(li)工(gong)(gong)序。