|
楼主 |
发表于 2010-4-27 21:38
|
显示全部楼层
- NUMBER/m,z1,z2,d1,t,i $$模数=m,蜗杆头数=z1,蜗轮齿数=z2,分度圆直径=d1* J; V0 @4 O& X3 w
- entity/cyl,pt1,pt2,pt3,pt4,ln1,ln2,ln3,ln4,pt(5001),SPL,obj1,obj2,obj3,obj40 ^- {; R" |) c. C: g# u
- $$ 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3 y# N3 w3 T) v6 i
- data/ha,1,c,0.2 $$ ha为齿顶高系数,c为径向间隙+ t) m. a7 ]% i9 V5 c
- l10:
5 W e3 l) ^: k0 A: q( W# s - PARAM/'阿基米德蜗杆','模数 m=',m,$
' L5 a& s6 S K - '蜗杆头数 z1=',int,z1,$
- p) M& E" q( { n - '蜗轮齿数z2=',int,z2,$6 y+ g7 E' p/ ]( m
- '分度圆直径d1=',d1,respond
( k1 B; H2 a& n7 o5 F - JUMP/l10:,stop:,,respond5 H0 u' `$ I. b9 O/ Z
- r=atanf(m*z1/d1) $$ r为导程角
6 z2 J8 F* l3 T1 Z - px=3.1416*m $$ px为齿距; `$ Z7 n- e. a
- da1=d1+2*ha*m $$ da1为齿顶圆: F+ S6 S* q2 w
- df1=d1-2*(ha+c)*m $$ df1为齿根圆0 [) X6 ?- u# |9 C; X
- b1=2*m*sqrtf(z2+1) $$ b1为蜗杆齿宽(螺纹长度)
7 n J9 G$ E3 K+ x: W - n=INTF(b1/px)+2 $$ n=螺旋线圈数. x% p1 {- f: L
- cyl=solcyl/origin,0,0,px,height,b1,diamtr,da1,iferr,mark:# s. ?% d! W6 L* P4 P
- mark:
, q+ m5 \/ R' D/ x4 w) c - stop:
f& p( i4 H1 }8 |- h9 D6 d - pt1=POINT/df1/2,0,px/4-(d1-df1)/2*sinf(20)/cosf(20)) v# J5 A# x) n# w0 b+ B
- pt2=POINT/df1/2,0,(d1-df1)/2*sinf(20)/cosf(20)-px/4/ v5 C' H* m% F3 j4 P2 }
- pt3=POINT/(da1+0.1)/2,0,px/4+(da1-d1+0.1)/2*sinf(20)/cosf(20)$ j. c# l4 n* A6 \1 r2 n) a( j
- pt4=POINT/(da1+0.1)/2,0,(d1-da1-0.1)/2*sinf(20)/cosf(20)-px/45 c. J4 @) {+ F O M, H
- ln1=LINE/pt1,pt2
( c. Z9 h+ {0 G - ln2=LINE/pt3,pt4
+ A |! X" B" U+ y - ln3=LINE/pt1,pt38 p# U# b. _& M: D
- ln4=LINE/pt2,pt4
; n+ R& a% y8 P R+ Q. f7 N4 v - i=0
. g' @. H$ k$ v) I+ V. U - str1:, m; r$ M/ _8 r( Q# |9 y, g
- i=i+1 $$取i个拟合点: h9 P- q( F$ K) A7 q1 c
- t=(i-1)/5000 $$ t取0~1
! U1 [ X; J) U/ ^5 I - xc=cosf(360*n*t)*d1/2) L. i/ v$ d" P
- yc=sinf(360*n*t)*d1/2
& z- Q; z. r$ J) N+ n1 b2 |* I - zc=t*px*n7 B7 g; b0 }. Y9 `
- pt(i)=point/xc,yc,zc: E/ x. U$ q5 ^& D
- if/t<1,jump/str1:
. e7 D6 }8 R" w" |# \/ b% V
6 J& i3 u5 Q& o5 R8 R% ~+ I+ D- blank/pt(1..i)
& Y( a4 j; r* l( L$ j, d& M! S/ u5 L - 8 b" z/ r% Z, J! L6 X5 h. G9 q
- SPL=spline/pt(1..i)
" ?2 q; K4 e% Y8 g2 m
7 a( N' e8 O/ ^& s- $$生成B-曲面。' h) c' ]/ h+ ~1 T5 X7 O* [" c
* o# I$ @) ~3 h1 C+ T! }# r/ a; z- obj1=bsurf/swpsrf,tracrv,SPL,gencrv,ln1[,ORIENT∣,zc∣]- G3 D# D1 } M, I
- obj2=bsurf/swpsrf,tracrv,SPL,gencrv,ln2[,ORIENT∣,zc∣]: f- k+ l6 K/ x5 u1 ^
- obj3=bsurf/swpsrf,tracrv,SPL,gencrv,ln3[,ORIENT∣,zc∣]: c, R6 b5 m$ k& `3 M
- obj4=bsurf/swpsrf,tracrv,SPL,gencrv,ln4[,ORIENT∣,zc∣]
- b9 ]$ |$ y- X9 L5 H4 m9 @ - $$程序结束。' d8 A+ D6 D& C6 w
- trm:' q. p) C7 I: j0 S$ L% F3 U. a' M
- halt
; B1 ^' t, s$ }& ~: z2 {8 y
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? |
-
扫掠函数
|