拖(tuo)泵(beng)制造工藝

錐(zhui)齒(chi)輪加工工藝(yi)流程和難點控制

為(wei)確(que)保齒輪(lun)熱(re)處理(li)(li)時，能(neng)夠減小(xiao)變形(xing)(xing)并獲(huo)得均勻的組(zu)織(zhi)和較好的機(ji)械性能(neng)，在(zai)機(ji)加(jia)工(gong)(gong)前，先(xian) 對齒坯進(jin)行(xing)高溫正火(huo)(huo)(huo)(huo)(huo)預處理(li)(li)，可以使(shi)組(zu)織(zhi)得到細化，并減小(xiao)滲碳(tan)淬(cui)(cui)火(huo)(huo)(huo)(huo)(huo)時零(ling)件的變形(xing)(xing)，同時還有利于 提(ti)高切削性能(neng)。正火(huo)(huo)(huo)(huo)(huo)后(hou)轉機(ji)加(jia)工(gong)(gong)，先(xian)在(zai)車(che)床上(shang)(shang)對齒坯外圓(yuan)、端面(mian)進(jin)行(xing)粗(cu)、精加(jia)工(gong)(gong)后(hou)，在(zai)臥(wo)式銑(xian)床上(shang)(shang)進(jin) 行(xing)銑(xian)齒，然(ran)后(hou)在(zai)插(cha)床上(shang)(shang)插(cha)鍵槽，全部機(ji)加(jia)工(gong)(gong)完成后(hou)，進(jin)行(xing)滲碳(tan)淬(cui)(cui)火(huo)(huo)(huo)(huo)(huo)和低溫回火(huo)(huo)(huo)(huo)(huo)處理(li)(li)，進(jin)行(xing)后(hou)序處 理(li)(li)。該零(ling)件的工(gong)(gong)藝(yi)流程為(wei)：正火(huo)(huo)(huo)(huo)(huo)→車(che)削→銑(xian)齒→插(cha)鍵槽→滲碳(tan)淬(cui)(cui)火(huo)(huo)(huo)(huo)(huo)及退火(huo)(huo)(huo)(huo)(huo)→噴砂→防銹處理(li)(li)。工(gong)(gong)藝(yi)難點(dian)為(wei)銑(xian)齒和熱(re)處理(li)(li)工(gong)(gong)序。