拖泵制造(zao)工藝

錐齒(chi)輪加(jia)工(gong)工(gong)藝流程和難點控制

為(wei)確保(bao)齒(chi)(chi)輪(lun)熱處理(li)(li)時(shi)(shi)，能夠減小變(bian)(bian)形(xing)并(bing)獲得(de)均(jun)勻的(de)組織(zhi)(zhi)和(he)較好的(de)機械性能，在(zai)機加(jia)工(gong)(gong)(gong)前，先 對齒(chi)(chi)坯進行(xing)(xing)(xing)高(gao)溫(wen)(wen)正火(huo)(huo)(huo)預處理(li)(li)，可以使(shi)組織(zhi)(zhi)得(de)到細(xi)化，并(bing)減小滲(shen)碳(tan)淬火(huo)(huo)(huo)時(shi)(shi)零件的(de)變(bian)(bian)形(xing)，同時(shi)(shi)還有利(li)于 提(ti)高(gao)切削性能。正火(huo)(huo)(huo)后轉(zhuan)機加(jia)工(gong)(gong)(gong)，先在(zai)車(che)床上對齒(chi)(chi)坯外圓、端面進行(xing)(xing)(xing)粗(cu)、精加(jia)工(gong)(gong)(gong)后，在(zai)臥(wo)式(shi)銑(xian)床上進 行(xing)(xing)(xing)銑(xian)齒(chi)(chi)，然(ran)后在(zai)插(cha)床上插(cha)鍵槽，全部(bu)機加(jia)工(gong)(gong)(gong)完成后，進行(xing)(xing)(xing)滲(shen)碳(tan)淬火(huo)(huo)(huo)和(he)低溫(wen)(wen)回(hui)火(huo)(huo)(huo)處理(li)(li)，進行(xing)(xing)(xing)后序(xu)處 理(li)(li)。該零件的(de)工(gong)(gong)(gong)藝流程(cheng)為(wei)：正火(huo)(huo)(huo)→車(che)削→銑(xian)齒(chi)(chi)→插(cha)鍵槽→滲(shen)碳(tan)淬火(huo)(huo)(huo)及(ji)退火(huo)(huo)(huo)→噴砂→防銹處理(li)(li)。工(gong)(gong)(gong)藝難點為(wei)銑(xian)齒(chi)(chi)和(he)熱處理(li)(li)工(gong)(gong)(gong)序(xu)。