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发表于 2010-4-27 21:38
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- NUMBER/m,z1,z2,d1,t,i $$模数=m,蜗杆头数=z1,蜗轮齿数=z2,分度圆直径=d15 y+ g# \8 a) x9 f, J" l3 T
- entity/cyl,pt1,pt2,pt3,pt4,ln1,ln2,ln3,ln4,pt(5001),SPL,obj1,obj2,obj3,obj4
9 y4 k7 C% O& m- A8 B- J! }( ? - $$ cy1为圆柱体,pt1..pt4为点,ln1..ln4为T型线,pt(5001)拟合点,spl为螺旋线
5 X* z( v g( u6 E. s. ?; v - data/ha,1,c,0.2 $$ ha为齿顶高系数,c为径向间隙; g: t: N" Q3 N" X
- l10:
$ z0 |: G8 Y9 M& x5 G; V9 U - PARAM/'阿基米德蜗杆','模数 m=',m,$
' r. Z5 y5 v6 G - '蜗杆头数 z1=',int,z1,$
7 \! v5 E" ^& R" H# ^& b6 e - '蜗轮齿数z2=',int,z2,$, S) O3 ^- \ Z
- '分度圆直径d1=',d1,respond: B( D. N Q) c3 r
- JUMP/l10:,stop:,,respond
* ~( B3 b- r. m' @. j9 x - r=atanf(m*z1/d1) $$ r为导程角1 z9 F3 w6 k3 d( N# x0 b/ J/ |9 C% M
- px=3.1416*m $$ px为齿距5 \2 e& ~6 Z4 {6 r) @
- da1=d1+2*ha*m $$ da1为齿顶圆
1 h' Q& Q r: b* L* { - df1=d1-2*(ha+c)*m $$ df1为齿根圆
$ T* N) G+ g. ~' @5 M5 U2 e1 }& | - b1=2*m*sqrtf(z2+1) $$ b1为蜗杆齿宽(螺纹长度)
* E# a* M5 Q% B8 K+ l- ] - n=INTF(b1/px)+2 $$ n=螺旋线圈数
1 r3 [+ V, i$ ]3 l - cyl=solcyl/origin,0,0,px,height,b1,diamtr,da1,iferr,mark:5 v6 L/ ^, \ f. Q' k+ h1 C
- mark:+ v" f% i6 R3 [; K/ X- k T
- stop:! @5 ~6 s3 D+ K. Y' C4 E- C
- pt1=POINT/df1/2,0,px/4-(d1-df1)/2*sinf(20)/cosf(20)
9 E8 W( W- U) L - pt2=POINT/df1/2,0,(d1-df1)/2*sinf(20)/cosf(20)-px/42 W3 K2 \0 X3 r
- pt3=POINT/(da1+0.1)/2,0,px/4+(da1-d1+0.1)/2*sinf(20)/cosf(20)
' b1 X! M! g( C# ] - pt4=POINT/(da1+0.1)/2,0,(d1-da1-0.1)/2*sinf(20)/cosf(20)-px/4
* Q- A7 b. L+ {; i, X( @ - ln1=LINE/pt1,pt27 L1 {& z$ X! ^, \/ J4 I5 r2 |
- ln2=LINE/pt3,pt4 c2 f1 E* V+ i+ B. D( }4 P: q. m
- ln3=LINE/pt1,pt3
, W0 [( s2 N0 V - ln4=LINE/pt2,pt48 @7 p! f" b3 }( W% V
- i=0
- S# p" i6 ]/ v1 e3 x8 J, G - str1:
# |% D. s6 X7 S: o1 z/ O, O% E! ~ - i=i+1 $$取i个拟合点& f N. R0 b' H1 |+ {
- t=(i-1)/5000 $$ t取0~1+ k! G/ }# j' f
- xc=cosf(360*n*t)*d1/22 n8 N' D% ~1 W
- yc=sinf(360*n*t)*d1/2
; z+ L2 o- u6 I: Y1 O - zc=t*px*n
; K; e4 s, `0 Z! G! Y - pt(i)=point/xc,yc,zc
; Q ?' i/ E. O+ K+ M - if/t<1,jump/str1:
7 o, V( d* f1 X$ |# E% Z - 8 ^ g' c% D& ?3 \
- blank/pt(1..i)
( c2 N3 j. W; u; G7 {) c, B - " d4 R7 b3 y7 F( Z# s7 \* l6 U
- SPL=spline/pt(1..i)
1 f$ S3 Y) l+ f
- Z7 L" M5 h& p. Z8 W3 e- $$生成B-曲面。/ B5 R8 _! X- G+ A6 X @1 g+ M) ]6 ~
- ' X! U( O9 o/ q9 \9 a
- obj1=bsurf/swpsrf,tracrv,SPL,gencrv,ln1[,ORIENT∣,zc∣]$ b3 {9 h' d1 h+ k" N
- obj2=bsurf/swpsrf,tracrv,SPL,gencrv,ln2[,ORIENT∣,zc∣]
; U1 n, L' U1 e" n- W- y - obj3=bsurf/swpsrf,tracrv,SPL,gencrv,ln3[,ORIENT∣,zc∣]
( D1 }9 G" ?- s% p. n! n - obj4=bsurf/swpsrf,tracrv,SPL,gencrv,ln4[,ORIENT∣,zc∣]
/ T2 Y$ t6 ]8 u" X& I5 P - $$程序结束。
! P/ U! @3 E$ v- t, f+ \' }% o - trm:0 u# v- p, A( ]; \ I
- halt, P! M9 Z% u, ?
复制代码 找到了扫掠函数,但还是不怎么会用,我做的是蜗杆的扫掠,哪位大侠帮我看看问题在哪啊? |
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扫掠函数
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