拖泵(beng)制造工藝

錐(zhui)齒輪加工工藝(yi)流(liu)程和難點控制

為(wei)確保齒(chi)輪(lun)熱(re)處(chu)(chu)(chu)理(li)時(shi)，能(neng)夠減小(xiao)變形(xing)并(bing)獲得(de)均勻的(de)組織和(he)較好(hao)的(de)機械性(xing)能(neng)，在(zai)機加(jia)工(gong)(gong)(gong)前，先 對齒(chi)坯進(jin)行(xing)(xing)(xing)高溫正(zheng)火(huo)預處(chu)(chu)(chu)理(li)，可以使組織得(de)到細化(hua)，并(bing)減小(xiao)滲碳(tan)淬(cui)火(huo)時(shi)零(ling)(ling)件(jian)的(de)變形(xing)，同時(shi)還(huan)有(you)利于 提高切削(xue)性(xing)能(neng)。正(zheng)火(huo)后(hou)(hou)轉機加(jia)工(gong)(gong)(gong)，先在(zai)車(che)(che)床上(shang)對齒(chi)坯外圓、端面(mian)進(jin)行(xing)(xing)(xing)粗、精加(jia)工(gong)(gong)(gong)后(hou)(hou)，在(zai)臥式銑(xian)床上(shang)進(jin) 行(xing)(xing)(xing)銑(xian)齒(chi)，然后(hou)(hou)在(zai)插(cha)床上(shang)插(cha)鍵槽(cao)，全部機加(jia)工(gong)(gong)(gong)完成(cheng)后(hou)(hou)，進(jin)行(xing)(xing)(xing)滲碳(tan)淬(cui)火(huo)和(he)低溫回(hui)火(huo)處(chu)(chu)(chu)理(li)，進(jin)行(xing)(xing)(xing)后(hou)(hou)序處(chu)(chu)(chu) 理(li)。該零(ling)(ling)件(jian)的(de)工(gong)(gong)(gong)藝(yi)流程為(wei)：正(zheng)火(huo)→車(che)(che)削(xue)→銑(xian)齒(chi)→插(cha)鍵槽(cao)→滲碳(tan)淬(cui)火(huo)及退火(huo)→噴砂→防銹處(chu)(chu)(chu)理(li)。工(gong)(gong)(gong)藝(yi)難點為(wei)銑(xian)齒(chi)和(he)熱(re)處(chu)(chu)(chu)理(li)工(gong)(gong)(gong)序。