2005-2006 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishe

Chan, CY

Liu, GR

Lou, SM

Zhao, DF

2005-2006 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishedVoR allowe

PolyU Institutional Repository

?????????????????????1 ,???1 ,???1 ,C.Y.Chan2(1.?????? ??? ,?? ?? 310012;　2.??????)?　?:研究了分区型旋转锉 ,这种反映国际特种刀具研究新方向和前沿的新一代特种回转面刀具的刃线布置方法 ,大大改善了顶部刀刃的切削条件。???:分区型;旋转锉;数控?????:TH721　　?????:B　　????:1671-5276(2005)04-0066-02The Forming Theory and NC Machining of theRotary Burs with Special Cutting EdgesLIU Hu-ran1 ,ZHAO Dong-fu1 , LOU Shao-min1 ,C.Y.CHAN2(1.Deptment of Mechanical Engineering , Zhejiang University of Scienceand Technology ,ZJ Hang zhou 310012 ,China;　2.The Hong Kong Polytechnic University ,China)Abstract:This paper researched the rotary burs with special cut ting edges , which is the newest lay out of suchtools , i t represents the international t rend of development and advanced situation.So that the cut ting conditionof the cut ter has been improved.Key words:accrose edge;rotary burs;NC machining0　引言????????????????????? ,???????????? , ????????? 。??? ,????????? ,????? , ???? ,?????? ,?????? ,?????? 。?????????? ,??????????????????。?????????? ,??????? , ?????????????? , ???? , ????????????? ,????。?????????????? ,????????????????。????? ,????????? ,???????? , ??????????????? ,?????????????? 。1　分区型复合刀刃曲线???????????(? 1),????????????????????(x = xg), ???????????????????????????? ,???????????????。??????????。?? i ?????????? βi?? 1　??????????sinφi =-Li -xr tanβi (1)cosφi dφid x =r +(L i - x)d rd xr2tan βidφid x= 1rcosφi [ tanβi -d rd x sinφi]tanβi= r1+(drdx)2dφidx= tanβi -drd xsinφi1+(drd x)2cosφi(2)　　?? , β??????????? 。?????????? ,???????? βi , ??:tanβi =tanβo 1 +(drgd x)2cosφig +drgd x sinφig(3)　　??(3)?? βi ? ,????(1)? L i·???????·　　　　　刘鹄然 ,等·分区型复合旋转锉的成型原理与数控加工· 66　 · h ttp://ZZHD.chinajournal.net.cn　E-mail:ZZHD@chinajournal.net.cn　《机械制造与自动化》L i =-ctn βisinφigrg +xg (4)　　??(4)???x2i(1+tan2βi)-2 L i tan2βixi +(L 2i tan2βi -R 2)=0 (5)2　分区型旋转锉的成型原理?????????????? 2 ,?? 4?? 2　????????:1)?????:?????????? ,s(0)????????????????;2)s(1)?????????????? , ?? O(1)?O(0)?? , z(1)? z(0)??;3)s(d)??????????:x(d)??? s(d)?? φ?;4)????? s(s):?? O(s)????????? ,????????????。Y(x)?? y(o)??? , x(s)?? x(o)?? π/ Z -∑? 。??????????????? xcyc?? ,???????????:Mos=sin∑ 0 cos∑ xc0 1 0 yc-cos∑ 0 -sin∑ z c0 0 0 1(6)Mo1=cosτ -sinτ 0 0sinτ cosτ 0 00 0 1 00 0 0 1(7)　　?? 3???????????? MB ??:? 3　????x(s)MB=-(R -τmBtanαBy(s)MB=τmBcosθBz(s)MB=τmBsinθB(8)??:τmB——— ??????? MB ??????;　　　θB ———??????? 。MB ???????:n(s)MB=(-cosαB , -sinαBcosθB ,sinαBsinθB) (9)　　????????:x(o)MB=-(R -τmB)tanαB sin∑+τmBsinθBcos∑+xcy(o)MB=-τmBcosθB +ycz(o)MB =(R -τmB)tanαBcos∑+τmBsinθBsin∑+z c(10) n(o)MB=(-cosαBsin∑+sinαBsinθB cos∑-　　sinαB cosθB , cosαB cos∑+sinαBsinθBsin∑) (11)　　???????? M A ?????????:x(s)MA=0;y(s)MA=-rmAcosθA (12)z(s)MA= rmAsinθA ; n(s)MA=(1 ,0 ,0) (13)　　????????:　　x(o)MB=rmBsinθAcos∑+xcy(o)MB=-rmBsinθA +ycz(o)MB=rmBsinθAsin∑+z c(14)　　 n(o)MB=(sin∑ ,0 , cos∑) (15)3　算例???????? ,??????:???:d =13mm ;??:l =10mm;???:β =20°;??:z =24;?? 6?? ,?? 4?。??????:D =100mm;?????:αB =50°。????????????? 4?? 。(??? 71?)·???????·　　　　　刘鹄然 ,等·分区型复合旋转锉的成型原理与数控加工Machine Bui ld ing &A utomation , Aug 2005 , 34(4):66 ～ 67 , 71 · 67　 ·? 8　? 4 ???? 9　? 6 ???? 10　? 9??????????????? y ????? ,????????;? 3???????????????????? y ?????? ,???????????;? 4?????????????????? x ???? ,????;? 5??????????????????????????;? 6?????????????????? y ???? ,?? y ???;? 7???????????????????;? 8???????????????? x ???;?9?????????????????? xy ????;? 10?????????????????????? ,????????。4　结论?? ANSYS ???? ,?????????? ,??????????? ,?????????????????? 、?????????????????????? ,????????? ,???????????? 。??????????????????????????????????????。????????????????????? ,????????????????????。??????????? ,??????????? ,?????????????? ,?????????????? 。????:[ 1] ?　? ,??? ,?.??????????????[ J] .????????.2001 , 4(25).[ 2] ??? ,?　? ,?.?????????????????[ J] .????.1999 , 4.[ 3] ??? ,?　? ,?.??????????????[ M ] .??:??????? , 1997.[ 4] ?　? ,???.?????????????[ J] .??????.2000 , 5.????:2005-01-12(??? 67?)? 4　????????????(??)????:[ 1] ???.????????????????????[ J] .??????? , 1998 ,(1):4-8.[ 2] ???.????????????[ J] .???? , 1994 ,(8):20-25.[ 3] ???.?????????????[ J] .?????? ,2002 ,(3):1-5.????:2004-11-10·???????·　　　　　张文斌 ,等·雷达天线座方位减速箱箱体的有限元分析Machine Bui ld ing &A utomation , Aug 2005 , 34(4):68 ～ 71 · 71　 ·

The forming theory and nc machining of the rotary burs with special cutting edges

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