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基于autocad的齿轮参数化源程序

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发表于 2011-5-25 11:34:51 | 显示全部楼层 |阅读模式
Imports System.Math* [% O- o/ Y: e' V
Public Class Form15 L/ q" S# a& U' Z
    Dim AcadApp As AutoCAD.AcadApplication
; P+ h2 i. a) Y+ ]) N3 ]    Dim 刀具 As Object
  \- }4 j! B' o$ l  H/ \' V    Dim Da, D0, D1, D2, D3, D4, n1, B, C As Double
7 v2 G+ A. D. V0 u# S0 S  \$ {. f% t    Dim Z, m, Af As Double7 I* d7 L$ Z1 Z) |/ X4 g
    Const Pi = 3.1415923 i8 `7 m, z( y. E, q/ J) j$ ]
    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
/ T% _) [# {6 R9 Z        Me.Text = "齿轮结构参数化三维造型"
: _! O& T& r7 K% z7 C! O        Me.GroupBox1.Text = ""/ M. z2 \/ [+ a- K( H& M& {, {" R0 p( [
        Me.Label1.Text = "齿数Z"9 a* C3 j( {3 }/ [& L" W
        Me.Label2.Text = "模数m": [8 J6 a3 l% q( l9 n, l
        Me.Label3.Text = "压力角Af"
8 V# w8 E2 a9 g, |2 k4 R- D3 H, }        Me.Label4.Text = "轴径D4"9 \9 Q; Y9 c4 V; \: Z9 m' _7 r
        Me.Label5.Text = "齿宽B"
* ?3 H1 \, D, o. m* l        Me.Label6.Text = "D0"
4 j$ |$ z7 d# ^/ o# V7 J6 v( S3 d5 [        Me.Label7.Text = "D3". s% m$ Y" ^; M1 Z/ Q
        Me.TextBox1.Text = 40& d: ~6 @+ @1 y( I; S
        Me.TextBox2.Text = 6, K& }) m  g% R! w; B9 o
        Me.TextBox3.Text = 20
. O0 C- c; \: l0 f+ |& N        Me.TextBox4.Text = CInt(Val(Me.TextBox1.Text) * Val(Me.TextBox2.Text) * 0.3)9 ?' i4 D- `9 m% _) Y; U& y; _
        D4 = Val(Me.TextBox4.Text)
& ^6 q/ b+ [$ ^& D9 j        Me.TextBox5.Text = CInt(1.2 * Val(Me.TextBox4.Text))- P# Q  d: X- i9 i
        Da = Val(Me.TextBox1.Text) * Val(Me.TextBox2.Text) + 2 * Val(Me.TextBox2.Text)) c4 P! D/ T& O( E% L* T, J
        Me.TextBox6.Text = Da - 12 * Val(Me.TextBox2.Text)+ j  G$ v$ D) {- Z( H2 b
        Me.TextBox7.Text = 1.6 * D48 t5 M$ d3 l: G8 d
        Me.CheckBox1.Text = "画腹板孔"% I$ p, y, t/ ]
        Me.CheckBox1.Checked = True3 l  r8 {8 D8 C& ^" K: h. B* _0 i# J' y7 V
        Me.Button1.Text = "齿轮结构造型"
2 _" {0 U, H. y% u) S7 A2 S        Me.Button2.Text = "结束"1 x! _$ }5 Y! ?2 m  e9 @( t- N% Y
    End Sub
/ H* J7 `- C1 g- u, y    Sub 连接AutoCAD()
9 ?* q# J0 y4 @0 O  v) F! ]# G, D/ p        On Error Resume Next
4 q* r- h0 E" t# {. o        AcadApp = GetObject(, "AutoCAD.Application")0 h0 g7 O; Z7 T2 I; W6 R4 q
        If Err.Number Then$ d  M/ e9 G9 }) z" X% g' F8 T
            Err.Clear()! h% O% b( J/ {! d" v
            AcadApp = CreateObject("AutoCAD.Application")
9 `9 f- y: X& n            If Err.Number Then& U/ f4 r" u) z# c: S
                MsgBox("不能运行AutoCAD,请检查是否安装了AutoCAD")8 W* \3 L- c& m$ [# k2 V
                Exit Sub- T9 u! L. O2 z. o
            End If
* q9 ~5 J! s# _/ A8 J4 W        End If
& {/ }6 ~; p7 x! A% B        AcadApp.Visible = True '界面可视6 m+ T; v+ M8 t/ Y$ ?2 R. j
        AcadApp.WindowState = AutoCAD.AcWindowState.acMax '界面最大化
9 S7 s7 u7 k$ R. [& }+ _- a        AppActivate(AcadApp.Caption) '显示AutoCAD界面: N2 j; Q1 u# D+ }
    End Sub
1 n( Q7 r! b) |- ]! S! K/ _5 l# _4 K    Sub 齿轮刀具()
& U+ G+ N# h- l- R. `        Dim R, Rf, Rb, Ra As Single. f' `% K  P/ s& k+ X' |$ E- a
        R = m * Z / 22 |/ u! u9 `: E6 J$ h/ E
        Rf = (R - 1.25 * m)
, q4 E, f, {2 {% j( E4 j        Rb = R * Cos(Af)
, X" N2 n# I/ A- B5 K6 E  F        Ra = R + m6 E" _- {/ i  m" N, F# V6 |0 `
        Dim Sb, th(3)
  N% |- ~- J9 ]' P3 |        Sb = Cos(Af) * (3.14 * m / 2 + m * Z * (Tan(Af) - (Af)))% \- K; n7 `  ?. Z0 j( j
        th(1) = (3.14 * m * Cos(Af) - Sb) / (2 * Rb)3 I# e4 Q8 V* c3 {& v
        th(0) = th(1) / 34 K! s! r# t3 @2 L
        th(2) = th(1) + Tan(Af) - Af6 j# v6 e, T3 Y3 ?- a* P# i8 u
        th(3) = th(1) + Tan(Acos(Rb / Ra)) - Acos(Rb / Ra)( L  g' E. Q& @/ {
        Dim curves(5) As AutoCAD.AcadEntity
- l0 ~7 H8 X, a6 d: E* A        Dim points0(5) As Double
7 O, q. u$ I2 S. H, u' g+ u/ B        Dim points1(8) As Double# t# u2 ^/ l" m( c3 J& d9 ^: `- m
        Dim points2(5) As Double$ G3 R' b8 g  J7 p, @5 W
        points0(0) = 0 : points0(1) = Rf1 }  b3 _# w/ e6 j1 E! ?' f, P1 f
        points0(2) = Rf * Sin(th(0)) : points0(3) = Rf * Cos(th(0))$ |6 [  [' E& v7 |7 o, X
        points0(4) = Rb * Sin(th(1)) : points0(5) = Rb * Cos(th(1))4 p" _  Z1 p7 o5 z
        Dim startTan(2) As Double. F% r( s6 h, ^2 _- R
        Dim endTan(2) As Double- R" @1 [4 G3 V$ L& H
        startTan(0) = 0 : startTan(1) = 0 : startTan(2) = 0
# e! P7 C- x5 F  k; Q' u+ A        endTan(0) = 0.5 : endTan(1) = 0.5 : endTan(2) = 0! K% W7 S) w) _
        points1(0) = points0(4) : points1(1) = points0(5) : points1(2) = 0
. K% K- ]+ A& a) g. M        points1(3) = R * Sin(th(2)) : points1(4) = R * Cos(th(2)) : points1(5) = 0% h- F# z+ V# L* `) _: \
        points1(6) = Ra * Sin(th(3)) : points1(7) = Ra * Cos(th(3)) : points1(8) = 0
, H  s, B* M, a% W        points2(0) = points1(6) : points2(1) = points1(7). [( @0 W! V/ p. [) {
        points2(2) = points1(6) : points2(3) = points1(7) + 2.25 * m
: N# M# i  i# G6 V# ^2 {7 L# l        points2(4) = 0 : points2(5) = points2(3)
" ^# q% R# G* K. L. `' x( n  p. f        If Rb < Rf Then
$ O9 D  _/ y$ I: Z+ k+ A0 Z            points0(2) = points1(3) * 0.2 : points0(3) = points0(1) + 0.25 * m * 0.03
9 `! p* |3 I3 ~9 _% x( \            points0(4) = points1(3) * 0.7 : points0(5) = points0(1) + 0.25 * m * 0.8$ D; L. D$ I- T$ G4 o: d, c. O1 F# V
            points1(0) = points0(4) : points1(1) = points0(5) : points1(2) = 00 E+ k3 ^1 p$ S; f
        End If
# ?- a' U" n: v        curves(0) = AcadApp.ActiveDocument.ModelSpace.AddLightWeightPolyline(points0)
- {$ B9 D0 Z6 A/ _3 a' b2 c        curves(0).SetBulge(1, 0.2)' p! G; s; i4 @
        curves(1) = AcadApp.ActiveDocument.ModelSpace.AddSpline(points1, startTan, endTan)
  ?0 ~4 K7 J- B& y# S/ W5 G; q        curves(2) = AcadApp.ActiveDocument.ModelSpace.AddLightWeightPolyline(points2)
8 p& A$ b- b8 p# Y- @        Dim point1(2) As Double/ V+ ~& C- A' N- r
        Dim point2(2) As Double
; @! x0 W0 r9 f: N" z# L/ }+ a# u0 o        point1(0) = 0 : point1(1) = 0 : point1(2) = 0
6 s7 Z; Q+ S9 U! z" {        point2(0) = 0 : point2(1) = 1 : point2(2) = 0
+ g5 Y' N7 A2 B: @        curves(3) = curves(2).Mirror(point1, point2)
% T- Q2 X7 y& }1 H        curves(4) = curves(1).Mirror(point1, point2)
7 l2 h' y( f2 T* @6 ~* C7 @        curves(5) = curves(0).Mirror(point1, point2)* C/ f% {" h& e: ]
        刀具 = AcadApp.ActiveDocument.ModelSpace.AddRegion(curves)
$ s% n3 g& V" K2 |4 r/ |2 F0 F        Dim taperAngle As Double
9 g/ V0 ?, A5 e8 m: K        taperAngle = 0- i) }5 {. @8 ?" _0 U6 C6 c
        Dim solidObj As AutoCAD.Acad3DSolid
- l  u7 ?! B  ^        solidObj = AcadApp.ActiveDocument.ModelSpace.AddExtrudedSolid(刀具(0), B * 1.1, taperAngle)% E) R, E1 ~8 M* M0 w9 Y
        Dim center(2) As Double$ F) T2 l9 x: p9 I$ p* \
        center(0) = 0 : center(1) = solidObj.Centroid(1) : center(2) = 0. }* N) u  _- e' u) F( _
        solidObj.Move(solidObj.Centroid, center)! T: y8 ?% M, W* F; Z3 s/ p8 `2 M
        Dim basePnt(2) As Double
' r% u& P  W0 F5 B% d$ y        basePnt(0) = 0 : basePnt(1) = 0 : basePnt(2) = 0.0#
) l* I  E6 l* e# ]- H- n6 D; b0 F- }; f        刀具 = solidObj.ArrayPolar(Z + 1, 2 * Pi, basePnt)
/ q/ d3 ~# w- T  P8 J" s' E* [    End Sub
! R$ G  A' o2 C' s; K    Private Sub TextBox1_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox1.TextChanged, TextBox2.TextChanged
; W2 K6 e% R' F0 _" `% V        Me.TextBox4.Text = CInt(Val(Me.TextBox1.Text) * Val(Me.TextBox2.Text) * 0.3)) J! e) r' v* U+ q  D& ~
        D4 = Val(Me.TextBox4.Text)
' d# K* Q! P) Z# S        Me.TextBox5.Text = CInt(1.2 * Val(Me.TextBox4.Text))
! Q' _3 W- u/ ^/ i6 N+ o) I        Da = Val(Me.TextBox1.Text) * Val(Me.TextBox2.Text) + 2 * Val(Me.TextBox2.Text)
! r: A- z) X. ?5 Z        Me.TextBox6.Text = Da - 12 * Val(Me.TextBox2.Text)
5 J# u" G) V% {0 E- P        Me.TextBox7.Text = 1.6 * D44 c% Y' {" G8 \& \' I  b1 n+ M
    End Sub
/ c+ b+ w' z. N5 h  E( o    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
4 n' H0 O0 p& z: h7 [        Call 连接AutoCAD()
. L" F; y1 x  h+ w0 _: D/ y        Dim entry As AutoCAD.AcadEntity. h8 H$ T, I* o
        For Each entry In AcadApp.ActiveDocument.ModelSpace
, @1 u1 z" T: f  V            entry.Delete()
+ e" G4 K/ N) p+ Q) @  N2 {5 P# l2 }  Y+ S- j# {) I
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