拖泵制造工藝

錐齒輪加工工藝流程和(he)難點控(kong)制

為確保(bao)齒(chi)輪熱(re)處(chu)理時(shi)(shi)，能(neng)夠減(jian)小變形(xing)(xing)并獲(huo)得(de)均勻(yun)的組織和較好的機械性能(neng)，在(zai)(zai)機加(jia)工(gong)(gong)(gong)前，先(xian) 對(dui)齒(chi)坯(pi)進行(xing)(xing)高溫正(zheng)火(huo)(huo)(huo)(huo)預處(chu)理，可以使組織得(de)到細化，并減(jian)小滲碳淬(cui)火(huo)(huo)(huo)(huo)時(shi)(shi)零件的變形(xing)(xing)，同(tong)時(shi)(shi)還有(you)利(li)于 提高切削性能(neng)。正(zheng)火(huo)(huo)(huo)(huo)后轉機加(jia)工(gong)(gong)(gong)，先(xian)在(zai)(zai)車(che)床上(shang)對(dui)齒(chi)坯(pi)外圓、端面(mian)進行(xing)(xing)粗、精加(jia)工(gong)(gong)(gong)后，在(zai)(zai)臥式銑(xian)(xian)床上(shang)進 行(xing)(xing)銑(xian)(xian)齒(chi)，然后在(zai)(zai)插(cha)床上(shang)插(cha)鍵(jian)槽(cao)，全部機加(jia)工(gong)(gong)(gong)完成后，進行(xing)(xing)滲碳淬(cui)火(huo)(huo)(huo)(huo)和低溫回火(huo)(huo)(huo)(huo)處(chu)理，進行(xing)(xing)后序處(chu) 理。該零件的工(gong)(gong)(gong)藝流程為：正(zheng)火(huo)(huo)(huo)(huo)→車(che)削→銑(xian)(xian)齒(chi)→插(cha)鍵(jian)槽(cao)→滲碳淬(cui)火(huo)(huo)(huo)(huo)及退火(huo)(huo)(huo)(huo)→噴砂→防銹(xiu)處(chu)理。工(gong)(gong)(gong)藝難點為銑(xian)(xian)齒(chi)和熱(re)處(chu)理工(gong)(gong)(gong)序。