拖泵制造工藝

錐齒輪加工工藝流(liu)程和(he)難點控制(zhi)

為(wei)確(que)保齒(chi)(chi)輪熱處(chu)理(li)時(shi)，能夠(gou)減小(xiao)變(bian)形(xing)并獲(huo)得均勻(yun)的組織和較好的機(ji)械性能，在機(ji)加(jia)工(gong)(gong)前，先(xian) 對(dui)齒(chi)(chi)坯進行高溫正(zheng)(zheng)火(huo)預處(chu)理(li)，可(ke)以使組織得到細化，并減小(xiao)滲碳(tan)(tan)淬(cui)火(huo)時(shi)零(ling)件的變(bian)形(xing)，同時(shi)還有利于 提高切削(xue)性能。正(zheng)(zheng)火(huo)后(hou)轉機(ji)加(jia)工(gong)(gong)，先(xian)在車床(chuang)上對(dui)齒(chi)(chi)坯外圓、端(duan)面進行粗、精加(jia)工(gong)(gong)后(hou)，在臥式銑(xian)(xian)床(chuang)上進 行銑(xian)(xian)齒(chi)(chi)，然后(hou)在插(cha)床(chuang)上插(cha)鍵(jian)槽，全部機(ji)加(jia)工(gong)(gong)完成后(hou)，進行滲碳(tan)(tan)淬(cui)火(huo)和低溫回火(huo)處(chu)理(li)，進行后(hou)序處(chu) 理(li)。該零(ling)件的工(gong)(gong)藝流程為(wei)：正(zheng)(zheng)火(huo)→車削(xue)→銑(xian)(xian)齒(chi)(chi)→插(cha)鍵(jian)槽→滲碳(tan)(tan)淬(cui)火(huo)及退火(huo)→噴砂→防銹處(chu)理(li)。工(gong)(gong)藝難點為(wei)銑(xian)(xian)齒(chi)(chi)和熱處(chu)理(li)工(gong)(gong)序。