拖(tuo)泵(beng)制造工藝

錐齒輪加工(gong)工(gong)藝流程和難點控制

為確保(bao)齒(chi)(chi)輪熱處(chu)理時，能(neng)(neng)夠減(jian)小變(bian)形(xing)并獲得均勻的(de)組織(zhi)和較好(hao)的(de)機械(xie)性(xing)能(neng)(neng)，在(zai)機加工(gong)(gong)(gong)前(qian)，先(xian) 對(dui)齒(chi)(chi)坯(pi)(pi)進(jin)(jin)行(xing)(xing)高溫正火(huo)預處(chu)理，可以使組織(zhi)得到細化(hua)，并減(jian)小滲(shen)碳(tan)(tan)淬(cui)火(huo)時零件(jian)的(de)變(bian)形(xing)，同時還有利(li)于 提高切削性(xing)能(neng)(neng)。正火(huo)后(hou)轉機加工(gong)(gong)(gong)，先(xian)在(zai)車床上(shang)對(dui)齒(chi)(chi)坯(pi)(pi)外(wai)圓、端面進(jin)(jin)行(xing)(xing)粗、精加工(gong)(gong)(gong)后(hou)，在(zai)臥(wo)式銑(xian)床上(shang)進(jin)(jin) 行(xing)(xing)銑(xian)齒(chi)(chi)，然后(hou)在(zai)插床上(shang)插鍵(jian)槽，全部機加工(gong)(gong)(gong)完(wan)成(cheng)后(hou)，進(jin)(jin)行(xing)(xing)滲(shen)碳(tan)(tan)淬(cui)火(huo)和低溫回火(huo)處(chu)理，進(jin)(jin)行(xing)(xing)后(hou)序(xu)處(chu) 理。該零件(jian)的(de)工(gong)(gong)(gong)藝流程為：正火(huo)→車削→銑(xian)齒(chi)(chi)→插鍵(jian)槽→滲(shen)碳(tan)(tan)淬(cui)火(huo)及退火(huo)→噴砂→防銹處(chu)理。工(gong)(gong)(gong)藝難點為銑(xian)齒(chi)(chi)和熱處(chu)理工(gong)(gong)(gong)序(xu)。