拖泵制(zhi)造(zao)工藝(yi)

錐齒輪加工(gong)工(gong)藝流程(cheng)和難點控制

為(wei)確(que)保(bao)齒(chi)輪(lun)熱處(chu)理(li)(li)時(shi)，能(neng)夠減(jian)小變形(xing)并獲(huo)得(de)均勻的組(zu)(zu)織和(he)較好的機(ji)械性能(neng)，在(zai)機(ji)加(jia)工(gong)(gong)前，先 對齒(chi)坯進(jin)(jin)行(xing)高(gao)溫正(zheng)火(huo)預處(chu)理(li)(li)，可(ke)以使(shi)組(zu)(zu)織得(de)到細(xi)化，并減(jian)小滲碳淬火(huo)時(shi)零(ling)件的變形(xing)，同(tong)時(shi)還有利于 提高(gao)切削性能(neng)。正(zheng)火(huo)后轉機(ji)加(jia)工(gong)(gong)，先在(zai)車床上對齒(chi)坯外圓(yuan)、端面進(jin)(jin)行(xing)粗、精(jing)加(jia)工(gong)(gong)后，在(zai)臥(wo)式銑(xian)床上進(jin)(jin) 行(xing)銑(xian)齒(chi)，然后在(zai)插床上插鍵槽(cao)，全(quan)部機(ji)加(jia)工(gong)(gong)完成后，進(jin)(jin)行(xing)滲碳淬火(huo)和(he)低溫回火(huo)處(chu)理(li)(li)，進(jin)(jin)行(xing)后序(xu)處(chu) 理(li)(li)。該零(ling)件的工(gong)(gong)藝流程(cheng)為(wei)：正(zheng)火(huo)→車削→銑(xian)齒(chi)→插鍵槽(cao)→滲碳淬火(huo)及退(tui)火(huo)→噴砂→防銹處(chu)理(li)(li)。工(gong)(gong)藝難點為(wei)銑(xian)齒(chi)和(he)熱處(chu)理(li)(li)工(gong)(gong)序(xu)。