拖泵制造工藝(yi)

錐齒輪加工工藝流(liu)程和難點控制

為(wei)確保齒(chi)(chi)(chi)(chi)輪熱處理(li)(li)時(shi)(shi)，能(neng)夠減小變形(xing)(xing)并(bing)獲得均(jun)勻的組織(zhi)和較(jiao)好(hao)的機械性能(neng)，在(zai)(zai)機加工(gong)前，先 對(dui)齒(chi)(chi)(chi)(chi)坯(pi)進(jin)行(xing)高溫(wen)正(zheng)火預處理(li)(li)，可以使(shi)組織(zhi)得到(dao)細化，并(bing)減小滲(shen)(shen)碳(tan)淬火時(shi)(shi)零件(jian)的變形(xing)(xing)，同時(shi)(shi)還有利于 提高切削(xue)性能(neng)。正(zheng)火后(hou)轉機加工(gong)，先在(zai)(zai)車(che)(che)床上(shang)對(dui)齒(chi)(chi)(chi)(chi)坯(pi)外(wai)圓(yuan)、端面(mian)進(jin)行(xing)粗、精(jing)加工(gong)后(hou)，在(zai)(zai)臥式銑床上(shang)進(jin) 行(xing)銑齒(chi)(chi)(chi)(chi)，然后(hou)在(zai)(zai)插床上(shang)插鍵槽(cao)，全部機加工(gong)完成后(hou)，進(jin)行(xing)滲(shen)(shen)碳(tan)淬火和低(di)溫(wen)回(hui)火處理(li)(li)，進(jin)行(xing)后(hou)序處 理(li)(li)。該零件(jian)的工(gong)藝流程為(wei)：正(zheng)火→車(che)(che)削(xue)→銑齒(chi)(chi)(chi)(chi)→插鍵槽(cao)→滲(shen)(shen)碳(tan)淬火及(ji)退火→噴砂→防銹處理(li)(li)。工(gong)藝難點為(wei)銑齒(chi)(chi)(chi)(chi)和熱處理(li)(li)工(gong)序。