拖(tuo)泵制(zhi)造(zao)工藝

錐齒輪(lun)加(jia)工工藝(yi)流程和難點控制

為(wei)確(que)保齒(chi)(chi)輪熱處(chu)(chu)理(li)時，能(neng)夠減(jian)小變形(xing)并獲得(de)均(jun)勻的組織(zhi)(zhi)和較好的機(ji)械性(xing)能(neng)，在(zai)(zai)機(ji)加(jia)工(gong)(gong)(gong)前，先 對(dui)齒(chi)(chi)坯進行(xing)高溫正火(huo)預處(chu)(chu)理(li)，可以使組織(zhi)(zhi)得(de)到細化(hua)，并減(jian)小滲碳(tan)(tan)淬火(huo)時零(ling)件(jian)的變形(xing)，同時還有利(li)于 提高切削性(xing)能(neng)。正火(huo)后轉(zhuan)機(ji)加(jia)工(gong)(gong)(gong)，先在(zai)(zai)車床(chuang)上對(dui)齒(chi)(chi)坯外圓(yuan)、端(duan)面進行(xing)粗、精加(jia)工(gong)(gong)(gong)后，在(zai)(zai)臥式銑床(chuang)上進 行(xing)銑齒(chi)(chi)，然后在(zai)(zai)插(cha)床(chuang)上插(cha)鍵槽(cao)，全部機(ji)加(jia)工(gong)(gong)(gong)完(wan)成(cheng)后，進行(xing)滲碳(tan)(tan)淬火(huo)和低溫回火(huo)處(chu)(chu)理(li)，進行(xing)后序處(chu)(chu) 理(li)。該(gai)零(ling)件(jian)的工(gong)(gong)(gong)藝流程為(wei)：正火(huo)→車削→銑齒(chi)(chi)→插(cha)鍵槽(cao)→滲碳(tan)(tan)淬火(huo)及退火(huo)→噴砂→防銹(xiu)處(chu)(chu)理(li)。工(gong)(gong)(gong)藝難點為(wei)銑齒(chi)(chi)和熱處(chu)(chu)理(li)工(gong)(gong)(gong)序。