拖泵制造工藝

錐齒輪加工工藝流程(cheng)和(he)難點(dian)控制

為(wei)確保(bao)齒(chi)輪熱處理(li)時，能夠減(jian)(jian)小變形并(bing)獲得均勻的組織(zhi)和較好(hao)的機械性能，在(zai)(zai)機加工(gong)(gong)前(qian)，先(xian)(xian) 對齒(chi)坯進(jin)行(xing)(xing)高溫(wen)(wen)正火(huo)(huo)預處理(li)，可(ke)以使組織(zhi)得到細化，并(bing)減(jian)(jian)小滲碳(tan)淬(cui)火(huo)(huo)時零件(jian)的變形，同(tong)時還(huan)有利于 提高切(qie)削性能。正火(huo)(huo)后(hou)(hou)轉機加工(gong)(gong)，先(xian)(xian)在(zai)(zai)車床(chuang)上對齒(chi)坯外圓、端面進(jin)行(xing)(xing)粗、精加工(gong)(gong)后(hou)(hou)，在(zai)(zai)臥式銑床(chuang)上進(jin) 行(xing)(xing)銑齒(chi)，然后(hou)(hou)在(zai)(zai)插床(chuang)上插鍵槽，全部機加工(gong)(gong)完成后(hou)(hou)，進(jin)行(xing)(xing)滲碳(tan)淬(cui)火(huo)(huo)和低溫(wen)(wen)回火(huo)(huo)處理(li)，進(jin)行(xing)(xing)后(hou)(hou)序處 理(li)。該零件(jian)的工(gong)(gong)藝流程為(wei)：正火(huo)(huo)→車削→銑齒(chi)→插鍵槽→滲碳(tan)淬(cui)火(huo)(huo)及(ji)退火(huo)(huo)→噴(pen)砂→防銹處理(li)。工(gong)(gong)藝難點為(wei)銑齒(chi)和熱處理(li)工(gong)(gong)序。