拖泵制(zhi)造工藝

錐齒(chi)輪加工工藝流程和難點(dian)控制

為(wei)確保齒(chi)(chi)輪熱處(chu)(chu)(chu)(chu)(chu)理時，能(neng)夠減小變形并獲得均勻的(de)組(zu)織(zhi)和(he)較好的(de)機(ji)械(xie)性(xing)能(neng)，在機(ji)加工(gong)前，先(xian) 對(dui)齒(chi)(chi)坯進(jin)行(xing)高(gao)溫正(zheng)火(huo)預(yu)處(chu)(chu)(chu)(chu)(chu)理，可以使(shi)組(zu)織(zhi)得到細(xi)化，并減小滲碳(tan)(tan)淬火(huo)時零(ling)件的(de)變形，同時還有(you)利于(yu) 提高(gao)切削性(xing)能(neng)。正(zheng)火(huo)后轉機(ji)加工(gong)，先(xian)在車床(chuang)上對(dui)齒(chi)(chi)坯外(wai)圓(yuan)、端面進(jin)行(xing)粗、精加工(gong)后，在臥式(shi)銑(xian)(xian)(xian)床(chuang)上進(jin) 行(xing)銑(xian)(xian)(xian)齒(chi)(chi)，然后在插床(chuang)上插鍵槽(cao)，全部機(ji)加工(gong)完成(cheng)后，進(jin)行(xing)滲碳(tan)(tan)淬火(huo)和(he)低溫回(hui)火(huo)處(chu)(chu)(chu)(chu)(chu)理，進(jin)行(xing)后序處(chu)(chu)(chu)(chu)(chu) 理。該零(ling)件的(de)工(gong)藝流程為(wei)：正(zheng)火(huo)→車削→銑(xian)(xian)(xian)齒(chi)(chi)→插鍵槽(cao)→滲碳(tan)(tan)淬火(huo)及(ji)退(tui)火(huo)→噴砂→防銹(xiu)處(chu)(chu)(chu)(chu)(chu)理。工(gong)藝難點為(wei)銑(xian)(xian)(xian)齒(chi)(chi)和(he)熱處(chu)(chu)(chu)(chu)(chu)理工(gong)序。