拖泵(beng)制造工藝

錐齒(chi)輪加工工藝流程(cheng)和(he)難點控(kong)制

為確保齒(chi)(chi)輪熱(re)處(chu)(chu)(chu)理(li)(li)(li)時(shi)(shi)，能夠減(jian)小(xiao)變形并(bing)獲得均勻(yun)的(de)組織和(he)(he)較(jiao)好的(de)機(ji)械性能，在(zai)機(ji)加(jia)工(gong)前，先(xian) 對齒(chi)(chi)坯進(jin)(jin)(jin)行(xing)高(gao)溫正(zheng)火(huo)(huo)預處(chu)(chu)(chu)理(li)(li)(li)，可以使組織得到細化(hua)，并(bing)減(jian)小(xiao)滲碳淬(cui)火(huo)(huo)時(shi)(shi)零件(jian)的(de)變形，同時(shi)(shi)還有利(li)于(yu) 提高(gao)切(qie)削性能。正(zheng)火(huo)(huo)后轉機(ji)加(jia)工(gong)，先(xian)在(zai)車床上(shang)(shang)對齒(chi)(chi)坯外(wai)圓、端面(mian)進(jin)(jin)(jin)行(xing)粗(cu)、精加(jia)工(gong)后，在(zai)臥式銑(xian)(xian)(xian)床上(shang)(shang)進(jin)(jin)(jin) 行(xing)銑(xian)(xian)(xian)齒(chi)(chi)，然后在(zai)插(cha)床上(shang)(shang)插(cha)鍵槽，全部機(ji)加(jia)工(gong)完成后，進(jin)(jin)(jin)行(xing)滲碳淬(cui)火(huo)(huo)和(he)(he)低溫回火(huo)(huo)處(chu)(chu)(chu)理(li)(li)(li)，進(jin)(jin)(jin)行(xing)后序處(chu)(chu)(chu) 理(li)(li)(li)。該零件(jian)的(de)工(gong)藝流程為：正(zheng)火(huo)(huo)→車削→銑(xian)(xian)(xian)齒(chi)(chi)→插(cha)鍵槽→滲碳淬(cui)火(huo)(huo)及退火(huo)(huo)→噴(pen)砂(sha)→防(fang)銹處(chu)(chu)(chu)理(li)(li)(li)。工(gong)藝難點為銑(xian)(xian)(xian)齒(chi)(chi)和(he)(he)熱(re)處(chu)(chu)(chu)理(li)(li)(li)工(gong)序。