芜湖职业技术学院学报
蕪湖職業技術學院學報
무호직업기술학원학보
JOURNAL OF WUHU PROFESSIONAL TECHNOLOGY COLLEGE
2013年
2期
24-26
,共3页
成形车刀%夹具%双曲线%前角%误差%机床%测量%径向进给
成形車刀%夾具%雙麯線%前角%誤差%機床%測量%徑嚮進給
성형차도%협구%쌍곡선%전각%오차%궤상%측량%경향진급
radial cylinder-shaped%copying%turning tool%hyperbolic curve%step-by-step design%error
设计径向圆体成形车刀加工锥面工件时,由于存在前角,刀具前面的平面没有通过工件轴线,刀具的刃形形状就必须做成刀具前面与工件圆锥面相交得的双曲线,被称为理论双曲线;在实际制造时,径向圆体成形车刀通常也被做成圆锥面,刀具的刃形变成前面与成形车刀本身的圆锥表面相交的双曲线,被称为刀刃的实际双曲线。采用分段设计的方式可有效降低由于理论曲线与实际曲线存在的误差而引起的工件的尺寸误差。
設計徑嚮圓體成形車刀加工錐麵工件時,由于存在前角,刀具前麵的平麵沒有通過工件軸線,刀具的刃形形狀就必鬚做成刀具前麵與工件圓錐麵相交得的雙麯線,被稱為理論雙麯線;在實際製造時,徑嚮圓體成形車刀通常也被做成圓錐麵,刀具的刃形變成前麵與成形車刀本身的圓錐錶麵相交的雙麯線,被稱為刀刃的實際雙麯線。採用分段設計的方式可有效降低由于理論麯線與實際麯線存在的誤差而引起的工件的呎吋誤差。
설계경향원체성형차도가공추면공건시,유우존재전각,도구전면적평면몰유통과공건축선,도구적인형형상취필수주성도구전면여공건원추면상교득적쌍곡선,피칭위이론쌍곡선;재실제제조시,경향원체성형차도통상야피주성원추면,도구적인형변성전면여성형차도본신적원추표면상교적쌍곡선,피칭위도인적실제쌍곡선。채용분단설계적방식가유효강저유우이론곡선여실제곡선존재적오차이인기적공건적척촌오차。
When machining a conical work-piece,the tool edge of the radial cylinder-shaped copying turning tool must be made like a hyperbolic curve formatted from the intersection of the front surface of the tool and the conical surface of the work-piece,which is called the theoretical hyperbola. But in actual production, the copying turning tool is made into a conical type,so the tool edge is also a hyperbolic curve formatted from the intersection of the front surface and the conical surface of the tool own,which is known as the real hyperbola,Using step-by-step design can effectively reduce the size error of the work-piece due to the difference of the theoretical hyperbola and the real hyperbola .