拖(tuo)泵制造工(gong)藝

錐(zhui)齒輪加工(gong)工(gong)藝流程和難點控制

為確(que)保齒(chi)輪熱處(chu)(chu)理(li)時，能(neng)夠減小變形(xing)并(bing)獲得均勻的(de)(de)組織和較好的(de)(de)機械性能(neng)，在(zai)機加工(gong)(gong)前，先(xian) 對齒(chi)坯(pi)進(jin)行(xing)(xing)高(gao)溫正(zheng)火(huo)預處(chu)(chu)理(li)，可(ke)以使組織得到細化，并(bing)減小滲(shen)(shen)碳(tan)淬火(huo)時零(ling)件的(de)(de)變形(xing)，同時還有利于(yu) 提(ti)高(gao)切削性能(neng)。正(zheng)火(huo)后轉機加工(gong)(gong)，先(xian)在(zai)車床(chuang)上對齒(chi)坯(pi)外圓(yuan)、端面進(jin)行(xing)(xing)粗(cu)、精加工(gong)(gong)后，在(zai)臥式(shi)銑(xian)床(chuang)上進(jin) 行(xing)(xing)銑(xian)齒(chi)，然后在(zai)插床(chuang)上插鍵槽，全(quan)部機加工(gong)(gong)完成后，進(jin)行(xing)(xing)滲(shen)(shen)碳(tan)淬火(huo)和低溫回火(huo)處(chu)(chu)理(li)，進(jin)行(xing)(xing)后序處(chu)(chu) 理(li)。該(gai)零(ling)件的(de)(de)工(gong)(gong)藝(yi)流(liu)程(cheng)為：正(zheng)火(huo)→車削→銑(xian)齒(chi)→插鍵槽→滲(shen)(shen)碳(tan)淬火(huo)及退火(huo)→噴砂(sha)→防銹處(chu)(chu)理(li)。工(gong)(gong)藝(yi)難點為銑(xian)齒(chi)和熱處(chu)(chu)理(li)工(gong)(gong)序。