拖泵(beng)制造工藝(yi)

錐齒輪加(jia)工工藝流(liu)程(cheng)和難點控制(zhi)

為(wei)確保齒輪(lun)熱處(chu)(chu)(chu)理(li)(li)時(shi)，能夠減小變形并(bing)(bing)獲得均(jun)勻的(de)組(zu)織和較好(hao)的(de)機械性(xing)能，在機加(jia)工(gong)(gong)(gong)前，先(xian)(xian) 對齒坯(pi)進行(xing)(xing)高溫(wen)正(zheng)火(huo)預處(chu)(chu)(chu)理(li)(li)，可(ke)以使(shi)組(zu)織得到細化，并(bing)(bing)減小滲碳(tan)淬火(huo)時(shi)零(ling)件的(de)變形，同時(shi)還有(you)利于 提高切削(xue)性(xing)能。正(zheng)火(huo)后轉機加(jia)工(gong)(gong)(gong)，先(xian)(xian)在車床(chuang)上對齒坯(pi)外圓、端面進行(xing)(xing)粗(cu)、精(jing)加(jia)工(gong)(gong)(gong)后，在臥(wo)式(shi)銑床(chuang)上進 行(xing)(xing)銑齒，然后在插(cha)床(chuang)上插(cha)鍵槽，全部機加(jia)工(gong)(gong)(gong)完(wan)成后，進行(xing)(xing)滲碳(tan)淬火(huo)和低溫(wen)回火(huo)處(chu)(chu)(chu)理(li)(li)，進行(xing)(xing)后序(xu)處(chu)(chu)(chu) 理(li)(li)。該零(ling)件的(de)工(gong)(gong)(gong)藝流程為(wei)：正(zheng)火(huo)→車削(xue)→銑齒→插(cha)鍵槽→滲碳(tan)淬火(huo)及退火(huo)→噴砂→防銹處(chu)(chu)(chu)理(li)(li)。工(gong)(gong)(gong)藝難點(dian)為(wei)銑齒和熱處(chu)(chu)(chu)理(li)(li)工(gong)(gong)(gong)序(xu)。