拖泵制造工藝(yi)

錐(zhui)齒輪加工(gong)工(gong)藝流程和難點控制

為確保齒輪熱(re)處(chu)理時，能(neng)(neng)(neng)夠減(jian)小(xiao)變形并獲得均勻的組織和較好(hao)的機(ji)械性能(neng)(neng)(neng)，在機(ji)加工(gong)(gong)前，先 對(dui)齒坯進行(xing)(xing)(xing)高溫正(zheng)火(huo)(huo)預處(chu)理，可以使(shi)組織得到細化，并減(jian)小(xiao)滲碳淬火(huo)(huo)時零件的變形，同(tong)時還有利于 提高切削性能(neng)(neng)(neng)。正(zheng)火(huo)(huo)后(hou)轉機(ji)加工(gong)(gong)，先在車(che)床上(shang)(shang)對(dui)齒坯外圓、端面進行(xing)(xing)(xing)粗(cu)、精加工(gong)(gong)后(hou)，在臥(wo)式銑(xian)(xian)床上(shang)(shang)進 行(xing)(xing)(xing)銑(xian)(xian)齒，然后(hou)在插(cha)床上(shang)(shang)插(cha)鍵槽，全(quan)部機(ji)加工(gong)(gong)完成(cheng)后(hou)，進行(xing)(xing)(xing)滲碳淬火(huo)(huo)和低溫回火(huo)(huo)處(chu)理，進行(xing)(xing)(xing)后(hou)序(xu)處(chu) 理。該零件的工(gong)(gong)藝(yi)流程為：正(zheng)火(huo)(huo)→車(che)削→銑(xian)(xian)齒→插(cha)鍵槽→滲碳淬火(huo)(huo)及退火(huo)(huo)→噴砂→防(fang)銹(xiu)處(chu)理。工(gong)(gong)藝(yi)難點為銑(xian)(xian)齒和熱(re)處(chu)理工(gong)(gong)序(xu)。