拖泵制(zhi)造工藝(yi)

錐(zhui)齒(chi)輪加工(gong)工(gong)藝流程和難點(dian)控制

為確保齒(chi)輪(lun)熱處理(li)(li)時(shi)，能夠減小變(bian)形并獲得均勻的(de)組織(zhi)和(he)較好的(de)機械性能，在機加工(gong)(gong)(gong)前，先 對齒(chi)坯(pi)進行(xing)高溫(wen)正火(huo)(huo)(huo)預(yu)處理(li)(li)，可以使組織(zhi)得到細(xi)化，并減小滲(shen)碳(tan)淬火(huo)(huo)(huo)時(shi)零件(jian)的(de)變(bian)形，同時(shi)還(huan)有(you)利于 提高切削性能。正火(huo)(huo)(huo)后轉機加工(gong)(gong)(gong)，先在車(che)床上(shang)(shang)(shang)對齒(chi)坯(pi)外圓(yuan)、端面進行(xing)粗(cu)、精加工(gong)(gong)(gong)后，在臥式(shi)銑(xian)床上(shang)(shang)(shang)進 行(xing)銑(xian)齒(chi)，然后在插床上(shang)(shang)(shang)插鍵槽，全(quan)部機加工(gong)(gong)(gong)完成后，進行(xing)滲(shen)碳(tan)淬火(huo)(huo)(huo)和(he)低溫(wen)回火(huo)(huo)(huo)處理(li)(li)，進行(xing)后序(xu)處 理(li)(li)。該零件(jian)的(de)工(gong)(gong)(gong)藝流程為：正火(huo)(huo)(huo)→車(che)削→銑(xian)齒(chi)→插鍵槽→滲(shen)碳(tan)淬火(huo)(huo)(huo)及退火(huo)(huo)(huo)→噴砂→防銹(xiu)處理(li)(li)。工(gong)(gong)(gong)藝難點為銑(xian)齒(chi)和(he)熱處理(li)(li)工(gong)(gong)(gong)序(xu)。