拖泵制造工藝

錐齒輪加工工藝流(liu)程和難點控制

為(wei)確保齒輪熱處(chu)(chu)理(li)(li)時，能夠減小(xiao)變形并獲得均勻的(de)組(zu)織和較(jiao)好的(de)機械(xie)性能，在機加工(gong)(gong)(gong)前，先 對(dui)齒坯進行高溫正(zheng)火預(yu)處(chu)(chu)理(li)(li)，可以(yi)使組(zu)織得到細(xi)化，并減小(xiao)滲碳淬(cui)(cui)火時零件(jian)的(de)變形，同時還有利于 提高切削(xue)性能。正(zheng)火后轉(zhuan)機加工(gong)(gong)(gong)，先在車(che)床上對(dui)齒坯外圓、端(duan)面(mian)進行粗、精(jing)加工(gong)(gong)(gong)后，在臥式(shi)銑(xian)(xian)床上進 行銑(xian)(xian)齒，然(ran)后在插(cha)床上插(cha)鍵槽，全(quan)部機加工(gong)(gong)(gong)完成(cheng)后，進行滲碳淬(cui)(cui)火和低(di)溫回(hui)火處(chu)(chu)理(li)(li)，進行后序處(chu)(chu) 理(li)(li)。該零件(jian)的(de)工(gong)(gong)(gong)藝(yi)(yi)流程為(wei)：正(zheng)火→車(che)削(xue)→銑(xian)(xian)齒→插(cha)鍵槽→滲碳淬(cui)(cui)火及退火→噴砂→防銹處(chu)(chu)理(li)(li)。工(gong)(gong)(gong)藝(yi)(yi)難點為(wei)銑(xian)(xian)齒和熱處(chu)(chu)理(li)(li)工(gong)(gong)(gong)序。