拖泵制造工藝

錐(zhui)齒輪加工(gong)(gong)工(gong)(gong)藝流(liu)程(cheng)和難點控制

為確保(bao)齒(chi)輪熱(re)處(chu)理(li)時，能夠減小(xiao)變形(xing)并(bing)獲(huo)得均勻的(de)組(zu)織和(he)較好(hao)的(de)機械(xie)性能，在機加(jia)(jia)工(gong)(gong)(gong)前，先 對(dui)齒(chi)坯進(jin)行(xing)高溫(wen)正火(huo)預處(chu)理(li)，可以使組(zu)織得到細化，并(bing)減小(xiao)滲(shen)碳淬(cui)火(huo)時零(ling)(ling)件(jian)的(de)變形(xing)，同時還有利于(yu) 提高切削性能。正火(huo)后(hou)轉機加(jia)(jia)工(gong)(gong)(gong)，先在車床上對(dui)齒(chi)坯外圓、端面進(jin)行(xing)粗、精(jing)加(jia)(jia)工(gong)(gong)(gong)后(hou)，在臥式銑床上進(jin) 行(xing)銑齒(chi)，然(ran)后(hou)在插(cha)床上插(cha)鍵(jian)槽，全部機加(jia)(jia)工(gong)(gong)(gong)完(wan)成后(hou)，進(jin)行(xing)滲(shen)碳淬(cui)火(huo)和(he)低溫(wen)回火(huo)處(chu)理(li)，進(jin)行(xing)后(hou)序(xu)處(chu) 理(li)。該(gai)零(ling)(ling)件(jian)的(de)工(gong)(gong)(gong)藝流程為：正火(huo)→車削→銑齒(chi)→插(cha)鍵(jian)槽→滲(shen)碳淬(cui)火(huo)及退火(huo)→噴砂(sha)→防銹(xiu)處(chu)理(li)。工(gong)(gong)(gong)藝難點為銑齒(chi)和(he)熱(re)處(chu)理(li)工(gong)(gong)(gong)序(xu)。