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发表于 2010-4-27 21:38
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- NUMBER/m,z1,z2,d1,t,i $$模数=m,蜗杆头数=z1,蜗轮齿数=z2,分度圆直径=d1
4 v |; B; X! M s7 d - entity/cyl,pt1,pt2,pt3,pt4,ln1,ln2,ln3,ln4,pt(5001),SPL,obj1,obj2,obj3,obj4! x7 f5 b' ]5 Z+ i; H- `8 @9 `
- $$ 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
6 Y3 V7 r$ G! S* Q! J8 v - data/ha,1,c,0.2 $$ ha为齿顶高系数,c为径向间隙
- F% V7 o0 S) v6 ~/ J - l10:; r r: @# _) G% @- C- V
- PARAM/'阿基米德蜗杆','模数 m=',m,$9 j9 j5 k: D0 v9 \ H1 A
- '蜗杆头数 z1=',int,z1,$
9 l; J! t% G6 [6 t* n! L: \0 M( r - '蜗轮齿数z2=',int,z2,$
% i: A/ v! p7 S( J% O - '分度圆直径d1=',d1,respond: f& J/ |4 c/ \: E% w7 a
- JUMP/l10:,stop:,,respond6 t' _" x! _( {: s4 f
- r=atanf(m*z1/d1) $$ r为导程角
3 s1 Y) r/ B! V! j7 P0 | - px=3.1416*m $$ px为齿距* f9 O7 }8 `8 x, N! ?
- da1=d1+2*ha*m $$ da1为齿顶圆3 u* s- H. }) @4 |" g8 ~
- df1=d1-2*(ha+c)*m $$ df1为齿根圆" I! h4 R3 t. G! y
- b1=2*m*sqrtf(z2+1) $$ b1为蜗杆齿宽(螺纹长度)
8 U3 y* B, G9 Q9 H9 y( M. i/ m - n=INTF(b1/px)+2 $$ n=螺旋线圈数) P Y" I$ r1 b. {
- cyl=solcyl/origin,0,0,px,height,b1,diamtr,da1,iferr,mark:# @! z- {( c! O
- mark:
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- pt1=POINT/df1/2,0,px/4-(d1-df1)/2*sinf(20)/cosf(20)
' H, a& A* g1 M7 q }1 r6 M - pt2=POINT/df1/2,0,(d1-df1)/2*sinf(20)/cosf(20)-px/48 p9 u( H' I z7 |' R- J
- pt3=POINT/(da1+0.1)/2,0,px/4+(da1-d1+0.1)/2*sinf(20)/cosf(20)% e* e4 ~, A* p9 G4 R: P; P
- pt4=POINT/(da1+0.1)/2,0,(d1-da1-0.1)/2*sinf(20)/cosf(20)-px/4' J) S2 i p5 r; K
- ln1=LINE/pt1,pt2' z: a1 ~) E5 X
- ln2=LINE/pt3,pt4
+ V, z K1 R" J - ln3=LINE/pt1,pt3* o. ?9 W2 ^. @0 H1 t# h
- ln4=LINE/pt2,pt4. d/ }6 p- O8 N7 H7 I( ~+ w
- i=0
% ~: e1 Z' _0 Y7 b( R - str1:) g a2 j: a% k% M7 U1 Q/ I$ `, w9 D
- i=i+1 $$取i个拟合点8 F* F7 \9 q3 s4 {; R
- t=(i-1)/5000 $$ t取0~1
' B) B# s+ L, k T# |5 I" D. O! {6 ? - xc=cosf(360*n*t)*d1/2' i0 Y/ A5 f- P6 J
- yc=sinf(360*n*t)*d1/2
8 c4 v; q6 C. p2 p2 }( Y - zc=t*px*n1 i3 V& g; X" h. k; s
- pt(i)=point/xc,yc,zc, r" G& A/ J/ B
- if/t<1,jump/str1:' J* S$ i4 D/ J% { {$ O
, F' ^# U- b- @* h/ a9 ^" z- blank/pt(1..i)
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+ d3 T8 P9 a+ u1 o- K% F7 a- SPL=spline/pt(1..i)
' O a. [+ Y+ p* q
- z$ [4 C2 n! ^1 _9 y( b; ^8 m- $$生成B-曲面。
- o3 a9 `) X% X; W! c. N
, G( e2 d& Z. T% ~# n" ]- obj1=bsurf/swpsrf,tracrv,SPL,gencrv,ln1[,ORIENT∣,zc∣]' L1 L: C) n" c" C; }
- obj2=bsurf/swpsrf,tracrv,SPL,gencrv,ln2[,ORIENT∣,zc∣]0 @- X# w6 b9 V/ B/ b1 b) B& _
- obj3=bsurf/swpsrf,tracrv,SPL,gencrv,ln3[,ORIENT∣,zc∣]6 W6 l, ^. w& I6 M
- obj4=bsurf/swpsrf,tracrv,SPL,gencrv,ln4[,ORIENT∣,zc∣]
4 p% \6 A4 x$ C+ G/ V - $$程序结束。% [) ?" B5 w2 a1 p7 X- [9 E2 x# ~
- trm:
1 Z8 h) R0 Z+ r$ j Z8 w: e - halt
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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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