拖(tuo)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(chi)輪熱處(chu)理(li)(li)時，能夠(gou)減小(xiao)變形并獲得均(jun)勻(yun)的組織和(he)(he)較好的機械性(xing)能，在(zai)(zai)機加工(gong)(gong)前，先 對(dui)齒(chi)坯進(jin)行(xing)(xing)高溫(wen)正(zheng)火預處(chu)理(li)(li)，可以(yi)使(shi)組織得到細(xi)化(hua)，并減小(xiao)滲(shen)(shen)碳淬(cui)火時零件的變形，同時還有利于 提高切削(xue)性(xing)能。正(zheng)火后轉機加工(gong)(gong)，先在(zai)(zai)車(che)床(chuang)上(shang)對(dui)齒(chi)坯外圓、端面(mian)進(jin)行(xing)(xing)粗(cu)、精加工(gong)(gong)后，在(zai)(zai)臥式銑(xian)床(chuang)上(shang)進(jin) 行(xing)(xing)銑(xian)齒(chi)，然后在(zai)(zai)插(cha)床(chuang)上(shang)插(cha)鍵槽，全部機加工(gong)(gong)完成后，進(jin)行(xing)(xing)滲(shen)(shen)碳淬(cui)火和(he)(he)低溫(wen)回火處(chu)理(li)(li)，進(jin)行(xing)(xing)后序處(chu) 理(li)(li)。該零件的工(gong)(gong)藝流程為(wei)(wei)：正(zheng)火→車(che)削(xue)→銑(xian)齒(chi)→插(cha)鍵槽→滲(shen)(shen)碳淬(cui)火及退火→噴砂→防(fang)銹(xiu)處(chu)理(li)(li)。工(gong)(gong)藝難點為(wei)(wei)銑(xian)齒(chi)和(he)(he)熱處(chu)理(li)(li)工(gong)(gong)序。