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我要做齿轮造型，程序如下：
Sub 齿轮刀具()
Dim R, Rf, Rb, Ra As Single
R = m * Z / 2 '齿轮分度圆半径
Rf = (R - 1.25 * m) '齿轮根圆半径
Rb = R * Cos(Af) '齿轮基圆半径
Ra = R + m ' 齿轮顶圆半径
'根据渐开线公式,计算渐开线上各点坐标
Dim Sb, th(3)
Sb = Cos(Af) * (3.14 * m / 2 + m * Z * (Tan(Af) - (Af))) ' 齿轮基圆齿厚
th(1) = (3.14 * m * Cos(Af) - Sb) / (2 * Rb)
th(0) = th(1) / 3
th(2) = th(1) + Tan(Af) - Af
th(3) = th(1) + Tan(Acos(Rb / Ra)) - Acos(Rb / Ra)
Dim curves(5) As AcadEntity
Dim points0(5) As Double
Dim points1(8) As Double
Dim points2(5) As Double
points0(0) = 0 : points0(1) = Rf '第0点
points0(2) = Rf * Sin(th(0)) : points0(3) = Rf * Cos(th(0)) '第1点
points0(4) = Rb * Sin(th(1)) : points0(5) = Rb * Cos(th(1)) '第2点
Dim startTan(2) As Double
Dim endTan(2) As Double
startTan(0) = 0 : startTan(1) = 0 : startTan(2) = 0
endTan(0) = 0.5 : endTan(1) = 0.5 : endTan(2) = 0
points1(0) = points0(4) : points1(1) = points0(5) : points1(2) = 0 '第2点
points1(3) = R * Sin(th(2)) : points1(4) = R * Cos(th(2)) : points1(5) = 0 '第3点
points1(6) = Ra * Sin(th(3)) : points1(7) = Ra * Cos(th(3)) : points1(8) = 0 '第4点
points2(0) = points1(6) : points2(1) = points1(7) '第4点
points2(2) = points1(6) : points2(3) = points1(7) + 2.25 * m '第5点
points2(4) = 0 : points2(5) = points2(3) '第6点
'当基圆小于根圆，调整第1，第2点坐标，得到近似值
If Rb
'创建右部线段
curves(0) = AcadApp.ActiveDocument.ModelSpace.AddLightWeightPolyline(points0) '由0，1，2点组成
curves(0).SetBulge(1, 0.2) '第一点凸度为0.2
curves(1) = AcadApp.ActiveDocument.ModelSpace.AddSpline(points1, startTan, endTan) '由2，3，4点组成
curves(2) = AcadApp.ActiveDocument.ModelSpace.AddLightWeightPolyline(points2) '由4，5，6点组成
'镜像右部线段，得到左部线段
Dim point1(2) As Double
Dim point2(2) As Double
point1(0) = 0 : point1(1) = 0 : point1(2) = 0
point2(0) = 0 : point2(1) = 1 : point2(2) = 0
curves(3) = curves(2).Mirror(point1, point2)
curves(4) = curves(1).Mirror(point1, point2)
curves(5) = curves(0).Mirror(point1, point2)
'创建面域
刀具 = AcadApp.ActiveDocument.ModelSpace.AddRegion(curves)
'创建面域
Dim taperAngle As Double
taperAngle = 0
Dim solidObj As Acad3DSolid
solidObj = AcadApp.ActiveDocument.ModelSpace.AddExtrudedSolid(刀具(0), B * 1.1, taperAngle)
Dim center(2) As Double
center(0) = 0 : center(1) = solidObj.Centroid(1) : center(2) = 0
solidObj.Move(solidObj.Centroid, center)
'环形阵列
Dim basePnt(2) As Double
basePnt(0) = 0 : basePnt(1) = 0 : basePnt(2) = 0.0#
刀具 = solidObj.ArrayPolar(Z + 1, 2 * Pi, basePnt)
End Sub
调试运行时 “红色字体” 语句出现错误，提示“未处理ComException，被呼叫方拒绝接收呼叫”。我是初学，那位高手能帮我看看是什么错误，谢谢！我用的软件2008，vs2008vb.net。 |
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