拖泵制造工藝

錐齒輪加工工藝流程(cheng)和(he)難點控(kong)制

為確保齒(chi)輪熱(re)處理時，能(neng)夠減(jian)小變形(xing)并獲得(de)均勻的組織(zhi)和較(jiao)好(hao)的機械性(xing)能(neng)，在機加(jia)工(gong)(gong)(gong)前(qian)，先(xian)(xian) 對齒(chi)坯進行(xing)高(gao)溫(wen)正火(huo)(huo)(huo)預處理，可以使(shi)組織(zhi)得(de)到細化，并減(jian)小滲碳淬(cui)火(huo)(huo)(huo)時零件的變形(xing)，同時還(huan)有利于 提(ti)高(gao)切削(xue)性(xing)能(neng)。正火(huo)(huo)(huo)后(hou)(hou)轉機加(jia)工(gong)(gong)(gong)，先(xian)(xian)在車(che)床上對齒(chi)坯外圓(yuan)、端面進行(xing)粗、精(jing)加(jia)工(gong)(gong)(gong)后(hou)(hou)，在臥式銑床上進 行(xing)銑齒(chi)，然后(hou)(hou)在插床上插鍵(jian)槽，全部機加(jia)工(gong)(gong)(gong)完成(cheng)后(hou)(hou)，進行(xing)滲碳淬(cui)火(huo)(huo)(huo)和低(di)溫(wen)回火(huo)(huo)(huo)處理，進行(xing)后(hou)(hou)序(xu)處 理。該(gai)零件的工(gong)(gong)(gong)藝(yi)流程為：正火(huo)(huo)(huo)→車(che)削(xue)→銑齒(chi)→插鍵(jian)槽→滲碳淬(cui)火(huo)(huo)(huo)及退火(huo)(huo)(huo)→噴(pen)砂(sha)→防銹處理。工(gong)(gong)(gong)藝(yi)難點為銑齒(chi)和熱(re)處理工(gong)(gong)(gong)序(xu)。