拖(tuo)泵制造工(gong)藝

錐齒輪加工工藝流(liu)程(cheng)和(he)難點控制

為(wei)確保(bao)齒(chi)(chi)(chi)(chi)輪(lun)熱處(chu)理(li)時(shi)，能(neng)夠減(jian)小(xiao)變形并獲得均勻(yun)的(de)組織(zhi)和(he)(he)較好的(de)機械性能(neng)，在(zai)機加(jia)工(gong)前(qian)，先(xian) 對(dui)(dui)齒(chi)(chi)(chi)(chi)坯進(jin)行(xing)(xing)高溫(wen)正(zheng)(zheng)火(huo)(huo)預處(chu)理(li)，可以(yi)使組織(zhi)得到細化(hua)，并減(jian)小(xiao)滲碳(tan)淬(cui)火(huo)(huo)時(shi)零件的(de)變形，同(tong)時(shi)還有利于 提(ti)高切削性能(neng)。正(zheng)(zheng)火(huo)(huo)后(hou)轉(zhuan)機加(jia)工(gong)，先(xian)在(zai)車床上(shang)對(dui)(dui)齒(chi)(chi)(chi)(chi)坯外圓、端(duan)面進(jin)行(xing)(xing)粗(cu)、精加(jia)工(gong)后(hou)，在(zai)臥式銑(xian)(xian)床上(shang)進(jin) 行(xing)(xing)銑(xian)(xian)齒(chi)(chi)(chi)(chi)，然后(hou)在(zai)插床上(shang)插鍵槽，全部(bu)機加(jia)工(gong)完(wan)成(cheng)后(hou)，進(jin)行(xing)(xing)滲碳(tan)淬(cui)火(huo)(huo)和(he)(he)低溫(wen)回(hui)火(huo)(huo)處(chu)理(li)，進(jin)行(xing)(xing)后(hou)序(xu)處(chu) 理(li)。該零件的(de)工(gong)藝流程為(wei)：正(zheng)(zheng)火(huo)(huo)→車削→銑(xian)(xian)齒(chi)(chi)(chi)(chi)→插鍵槽→滲碳(tan)淬(cui)火(huo)(huo)及(ji)退火(huo)(huo)→噴砂→防銹處(chu)理(li)。工(gong)藝難點為(wei)銑(xian)(xian)齒(chi)(chi)(chi)(chi)和(he)(he)熱處(chu)理(li)工(gong)序(xu)。