拖泵制(zhi)造工(gong)藝

錐齒輪加工工藝流程和難點控制

為(wei)(wei)確保齒(chi)輪熱處(chu)理(li)(li)時，能夠(gou)減(jian)小變形(xing)(xing)并獲得均(jun)勻(yun)的組(zu)織和較(jiao)好的機械性能，在(zai)(zai)機加工(gong)前，先 對齒(chi)坯(pi)進(jin)(jin)行(xing)(xing)(xing)高溫(wen)正火(huo)預處(chu)理(li)(li)，可以使組(zu)織得到細化，并減(jian)小滲碳淬火(huo)時零件(jian)的變形(xing)(xing)，同時還有利于 提高切削性能。正火(huo)后(hou)(hou)(hou)轉機加工(gong)，先在(zai)(zai)車床上(shang)對齒(chi)坯(pi)外圓、端(duan)面進(jin)(jin)行(xing)(xing)(xing)粗、精加工(gong)后(hou)(hou)(hou)，在(zai)(zai)臥式銑(xian)床上(shang)進(jin)(jin) 行(xing)(xing)(xing)銑(xian)齒(chi)，然后(hou)(hou)(hou)在(zai)(zai)插(cha)(cha)床上(shang)插(cha)(cha)鍵槽，全部機加工(gong)完成后(hou)(hou)(hou)，進(jin)(jin)行(xing)(xing)(xing)滲碳淬火(huo)和低溫(wen)回火(huo)處(chu)理(li)(li)，進(jin)(jin)行(xing)(xing)(xing)后(hou)(hou)(hou)序處(chu) 理(li)(li)。該零件(jian)的工(gong)藝流程為(wei)(wei)：正火(huo)→車削→銑(xian)齒(chi)→插(cha)(cha)鍵槽→滲碳淬火(huo)及退火(huo)→噴砂(sha)→防銹處(chu)理(li)(li)。工(gong)藝難點為(wei)(wei)銑(xian)齒(chi)和熱處(chu)理(li)(li)工(gong)序。