拖泵制造工藝

錐齒輪加(jia)工工藝流程和難點控制(zhi)

為(wei)確(que)保齒(chi)(chi)輪(lun)熱(re)(re)處(chu)(chu)理(li)(li)時(shi)，能(neng)夠減小變(bian)形(xing)并獲得(de)(de)均勻(yun)的組織和較好的機械性(xing)能(neng)，在(zai)機加(jia)(jia)工(gong)(gong)前，先 對齒(chi)(chi)坯進行(xing)(xing)高溫正(zheng)(zheng)火(huo)(huo)預處(chu)(chu)理(li)(li)，可(ke)以(yi)使(shi)組織得(de)(de)到細(xi)化，并減小滲碳(tan)淬火(huo)(huo)時(shi)零件(jian)的變(bian)形(xing)，同時(shi)還有利(li)于 提高切削性(xing)能(neng)。正(zheng)(zheng)火(huo)(huo)后轉機加(jia)(jia)工(gong)(gong)，先在(zai)車(che)床上(shang)對齒(chi)(chi)坯外圓(yuan)、端面進行(xing)(xing)粗(cu)、精加(jia)(jia)工(gong)(gong)后，在(zai)臥式銑(xian)床上(shang)進 行(xing)(xing)銑(xian)齒(chi)(chi)，然后在(zai)插(cha)床上(shang)插(cha)鍵槽，全部機加(jia)(jia)工(gong)(gong)完成后，進行(xing)(xing)滲碳(tan)淬火(huo)(huo)和低溫回火(huo)(huo)處(chu)(chu)理(li)(li)，進行(xing)(xing)后序處(chu)(chu) 理(li)(li)。該零件(jian)的工(gong)(gong)藝流程為(wei)：正(zheng)(zheng)火(huo)(huo)→車(che)削→銑(xian)齒(chi)(chi)→插(cha)鍵槽→滲碳(tan)淬火(huo)(huo)及退火(huo)(huo)→噴砂→防(fang)銹處(chu)(chu)理(li)(li)。工(gong)(gong)藝難(nan)點為(wei)銑(xian)齒(chi)(chi)和熱(re)(re)處(chu)(chu)理(li)(li)工(gong)(gong)序。