拖泵制造工(gong)藝(yi)

錐齒輪加工工藝流程(cheng)和難點控制(zhi)

為(wei)(wei)確保齒(chi)輪熱處(chu)理時(shi)(shi)，能夠減(jian)小變形并(bing)獲(huo)得(de)均勻的(de)組織和(he)較(jiao)好的(de)機(ji)械性(xing)能，在(zai)機(ji)加工(gong)(gong)前，先 對(dui)齒(chi)坯進行(xing)高溫正(zheng)火(huo)預處(chu)理，可以使組織得(de)到(dao)細化，并(bing)減(jian)小滲碳淬火(huo)時(shi)(shi)零(ling)件(jian)的(de)變形，同時(shi)(shi)還(huan)有(you)利(li)于(yu) 提高切削性(xing)能。正(zheng)火(huo)后(hou)轉機(ji)加工(gong)(gong)，先在(zai)車床上(shang)對(dui)齒(chi)坯外圓、端(duan)面進行(xing)粗、精加工(gong)(gong)后(hou)，在(zai)臥式銑(xian)床上(shang)進 行(xing)銑(xian)齒(chi)，然后(hou)在(zai)插床上(shang)插鍵槽(cao)(cao)，全(quan)部機(ji)加工(gong)(gong)完成后(hou)，進行(xing)滲碳淬火(huo)和(he)低溫回火(huo)處(chu)理，進行(xing)后(hou)序(xu)處(chu) 理。該零(ling)件(jian)的(de)工(gong)(gong)藝流(liu)程(cheng)為(wei)(wei)：正(zheng)火(huo)→車削→銑(xian)齒(chi)→插鍵槽(cao)(cao)→滲碳淬火(huo)及退火(huo)→噴砂→防銹處(chu)理。工(gong)(gong)藝難點(dian)為(wei)(wei)銑(xian)齒(chi)和(he)熱處(chu)理工(gong)(gong)序(xu)。