拖泵制(zhi)造工藝

錐(zhui)齒輪加(jia)工工藝(yi)流程和難點(dian)控(kong)制

為(wei)(wei)確保(bao)齒(chi)輪熱處(chu)理(li)時(shi)(shi)，能夠減小(xiao)變(bian)形(xing)并獲得(de)(de)均勻的組(zu)織和(he)較好的機(ji)(ji)械性能，在(zai)(zai)(zai)機(ji)(ji)加工(gong)前，先(xian) 對(dui)(dui)齒(chi)坯(pi)進(jin)(jin)(jin)(jin)行(xing)(xing)高溫(wen)正火(huo)預處(chu)理(li)，可(ke)以使組(zu)織得(de)(de)到細化，并減小(xiao)滲碳(tan)淬(cui)火(huo)時(shi)(shi)零件(jian)的變(bian)形(xing)，同時(shi)(shi)還(huan)有(you)利于 提高切削性能。正火(huo)后(hou)轉機(ji)(ji)加工(gong)，先(xian)在(zai)(zai)(zai)車床上(shang)對(dui)(dui)齒(chi)坯(pi)外圓、端(duan)面進(jin)(jin)(jin)(jin)行(xing)(xing)粗、精(jing)加工(gong)后(hou)，在(zai)(zai)(zai)臥式銑(xian)床上(shang)進(jin)(jin)(jin)(jin) 行(xing)(xing)銑(xian)齒(chi)，然后(hou)在(zai)(zai)(zai)插(cha)床上(shang)插(cha)鍵槽，全部機(ji)(ji)加工(gong)完(wan)成后(hou)，進(jin)(jin)(jin)(jin)行(xing)(xing)滲碳(tan)淬(cui)火(huo)和(he)低溫(wen)回火(huo)處(chu)理(li)，進(jin)(jin)(jin)(jin)行(xing)(xing)后(hou)序處(chu) 理(li)。該零件(jian)的工(gong)藝流程為(wei)(wei)：正火(huo)→車削→銑(xian)齒(chi)→插(cha)鍵槽→滲碳(tan)淬(cui)火(huo)及退(tui)火(huo)→噴砂→防銹處(chu)理(li)。工(gong)藝難點(dian)為(wei)(wei)銑(xian)齒(chi)和(he)熱處(chu)理(li)工(gong)序。