拖(tuo)泵(beng)制造工藝

錐齒輪加工(gong)(gong)工(gong)(gong)藝流程和難(nan)點(dian)控制

為(wei)(wei)確保齒(chi)(chi)輪熱(re)處(chu)(chu)(chu)理(li)(li)時(shi)，能(neng)夠減(jian)小(xiao)變形并(bing)獲得均勻的組(zu)織和較好的機(ji)械性能(neng)，在機(ji)加工(gong)前，先(xian) 對齒(chi)(chi)坯進行(xing)高(gao)溫(wen)正(zheng)火預處(chu)(chu)(chu)理(li)(li)，可以使組(zu)織得到細(xi)化(hua)，并(bing)減(jian)小(xiao)滲碳淬火時(shi)零(ling)件的變形，同時(shi)還(huan)有利于(yu) 提高(gao)切削(xue)性能(neng)。正(zheng)火后(hou)轉機(ji)加工(gong)，先(xian)在車床上(shang)(shang)對齒(chi)(chi)坯外圓、端(duan)面進行(xing)粗、精加工(gong)后(hou)，在臥式銑(xian)床上(shang)(shang)進 行(xing)銑(xian)齒(chi)(chi)，然后(hou)在插(cha)床上(shang)(shang)插(cha)鍵槽，全(quan)部機(ji)加工(gong)完成后(hou)，進行(xing)滲碳淬火和低溫(wen)回(hui)火處(chu)(chu)(chu)理(li)(li)，進行(xing)后(hou)序處(chu)(chu)(chu) 理(li)(li)。該零(ling)件的工(gong)藝流程為(wei)(wei)：正(zheng)火→車削(xue)→銑(xian)齒(chi)(chi)→插(cha)鍵槽→滲碳淬火及退火→噴砂→防銹處(chu)(chu)(chu)理(li)(li)。工(gong)藝難點為(wei)(wei)銑(xian)齒(chi)(chi)和熱(re)處(chu)(chu)(chu)理(li)(li)工(gong)序。