拖泵(beng)制造工藝

錐(zhui)齒輪加工工藝流程和難點控制

為(wei)確保(bao)齒(chi)(chi)輪熱處(chu)理(li)時(shi)，能夠(gou)減(jian)小(xiao)變(bian)(bian)形并(bing)(bing)獲得(de)均勻的組織(zhi)(zhi)和較(jiao)好(hao)的機(ji)械(xie)性能，在機(ji)加(jia)(jia)工(gong)(gong)前(qian)，先 對齒(chi)(chi)坯(pi)進(jin)(jin)(jin)行(xing)高溫正火(huo)預處(chu)理(li)，可以使組織(zhi)(zhi)得(de)到細化(hua)，并(bing)(bing)減(jian)小(xiao)滲碳(tan)淬火(huo)時(shi)零(ling)件(jian)的變(bian)(bian)形，同時(shi)還有利于 提(ti)高切削(xue)性能。正火(huo)后(hou)轉機(ji)加(jia)(jia)工(gong)(gong)，先在車床上對齒(chi)(chi)坯(pi)外(wai)圓、端(duan)面進(jin)(jin)(jin)行(xing)粗、精(jing)加(jia)(jia)工(gong)(gong)后(hou)，在臥式(shi)銑床上進(jin)(jin)(jin) 行(xing)銑齒(chi)(chi)，然后(hou)在插(cha)(cha)床上插(cha)(cha)鍵槽，全部(bu)機(ji)加(jia)(jia)工(gong)(gong)完(wan)成后(hou)，進(jin)(jin)(jin)行(xing)滲碳(tan)淬火(huo)和低溫回火(huo)處(chu)理(li)，進(jin)(jin)(jin)行(xing)后(hou)序處(chu) 理(li)。該零(ling)件(jian)的工(gong)(gong)藝流程為(wei)：正火(huo)→車削(xue)→銑齒(chi)(chi)→插(cha)(cha)鍵槽→滲碳(tan)淬火(huo)及退火(huo)→噴砂(sha)→防銹處(chu)理(li)。工(gong)(gong)藝難點(dian)為(wei)銑齒(chi)(chi)和熱處(chu)理(li)工(gong)(gong)序。