拖泵制(zhi)造(zao)工(gong)藝

錐齒輪加(jia)工(gong)工(gong)藝流程和難點控(kong)制(zhi)

為(wei)(wei)確保齒(chi)(chi)輪熱(re)處(chu)理(li)時，能(neng)(neng)夠減(jian)小變(bian)形(xing)(xing)并(bing)獲得(de)均勻的(de)(de)(de)組織和(he)(he)較好的(de)(de)(de)機(ji)械性能(neng)(neng)，在機(ji)加(jia)(jia)工(gong)前，先 對齒(chi)(chi)坯進(jin)(jin)行(xing)(xing)高溫正(zheng)(zheng)火預(yu)處(chu)理(li)，可以使(shi)組織得(de)到細化(hua)，并(bing)減(jian)小滲碳(tan)淬火時零(ling)件的(de)(de)(de)變(bian)形(xing)(xing)，同(tong)時還有利于 提高切削(xue)性能(neng)(neng)。正(zheng)(zheng)火后(hou)轉機(ji)加(jia)(jia)工(gong)，先在車(che)床上(shang)對齒(chi)(chi)坯外(wai)圓、端面進(jin)(jin)行(xing)(xing)粗、精加(jia)(jia)工(gong)后(hou)，在臥(wo)式銑床上(shang)進(jin)(jin) 行(xing)(xing)銑齒(chi)(chi)，然后(hou)在插(cha)床上(shang)插(cha)鍵(jian)槽(cao)，全部機(ji)加(jia)(jia)工(gong)完成后(hou)，進(jin)(jin)行(xing)(xing)滲碳(tan)淬火和(he)(he)低溫回火處(chu)理(li)，進(jin)(jin)行(xing)(xing)后(hou)序處(chu) 理(li)。該零(ling)件的(de)(de)(de)工(gong)藝流程為(wei)(wei)：正(zheng)(zheng)火→車(che)削(xue)→銑齒(chi)(chi)→插(cha)鍵(jian)槽(cao)→滲碳(tan)淬火及(ji)退(tui)火→噴砂→防銹處(chu)理(li)。工(gong)藝難(nan)點為(wei)(wei)銑齒(chi)(chi)和(he)(he)熱(re)處(chu)理(li)工(gong)序。