拖泵制造工藝

錐齒輪加工(gong)工(gong)藝流程和難點控制

為(wei)(wei)確保齒輪(lun)熱處(chu)理(li)時，能夠減(jian)小變形并(bing)獲得均(jun)勻的組織和較好的機(ji)械性(xing)能，在機(ji)加工(gong)(gong)前，先 對齒坯(pi)進(jin)(jin)行(xing)高(gao)溫正(zheng)火(huo)預處(chu)理(li)，可以使組織得到細化，并(bing)減(jian)小滲碳淬(cui)火(huo)時零件(jian)的變形，同時還(huan)有利(li)于 提高(gao)切削(xue)性(xing)能。正(zheng)火(huo)后(hou)轉機(ji)加工(gong)(gong)，先在車(che)床上對齒坯(pi)外圓(yuan)、端面(mian)進(jin)(jin)行(xing)粗、精加工(gong)(gong)后(hou)，在臥式銑(xian)(xian)床上進(jin)(jin) 行(xing)銑(xian)(xian)齒，然后(hou)在插床上插鍵(jian)槽(cao)，全部機(ji)加工(gong)(gong)完成后(hou)，進(jin)(jin)行(xing)滲碳淬(cui)火(huo)和低溫回火(huo)處(chu)理(li)，進(jin)(jin)行(xing)后(hou)序(xu)(xu)處(chu) 理(li)。該零件(jian)的工(gong)(gong)藝流程(cheng)為(wei)(wei)：正(zheng)火(huo)→車(che)削(xue)→銑(xian)(xian)齒→插鍵(jian)槽(cao)→滲碳淬(cui)火(huo)及退火(huo)→噴砂→防銹處(chu)理(li)。工(gong)(gong)藝難點(dian)為(wei)(wei)銑(xian)(xian)齒和熱處(chu)理(li)工(gong)(gong)序(xu)(xu)。