拖泵制造(zao)工藝

錐齒輪加工工藝流程和(he)難(nan)點控(kong)制

為確保齒(chi)輪熱處(chu)理(li)(li)(li)時，能夠減小變(bian)形并(bing)(bing)獲得(de)(de)均勻的(de)(de)組織(zhi)和較好的(de)(de)機(ji)械性(xing)能，在機(ji)加(jia)工(gong)(gong)前，先 對(dui)齒(chi)坯進(jin)(jin)行高溫正火預處(chu)理(li)(li)(li)，可(ke)以使組織(zhi)得(de)(de)到細化，并(bing)(bing)減小滲碳淬(cui)火時零件的(de)(de)變(bian)形，同時還(huan)有利于 提高切削性(xing)能。正火后(hou)轉機(ji)加(jia)工(gong)(gong)，先在車(che)床上(shang)對(dui)齒(chi)坯外(wai)圓、端(duan)面(mian)進(jin)(jin)行粗、精加(jia)工(gong)(gong)后(hou)，在臥(wo)式(shi)銑(xian)床上(shang)進(jin)(jin) 行銑(xian)齒(chi)，然后(hou)在插(cha)床上(shang)插(cha)鍵(jian)槽(cao)，全部機(ji)加(jia)工(gong)(gong)完成(cheng)后(hou)，進(jin)(jin)行滲碳淬(cui)火和低溫回(hui)火處(chu)理(li)(li)(li)，進(jin)(jin)行后(hou)序處(chu) 理(li)(li)(li)。該(gai)零件的(de)(de)工(gong)(gong)藝流程為：正火→車(che)削→銑(xian)齒(chi)→插(cha)鍵(jian)槽(cao)→滲碳淬(cui)火及退火→噴砂→防銹處(chu)理(li)(li)(li)。工(gong)(gong)藝難(nan)點(dian)為銑(xian)齒(chi)和熱處(chu)理(li)(li)(li)工(gong)(gong)序。