1、单击右边的旋转命令,选择TOP平面作为草绘平面,绘制如下图所示的草图(在草图绘制过程中注意几何中心线的绘制)旋转后的结果如图所示
2、旋转完成以后,使用以FRONT平面作为草绘平面的拉伸命令,绘制如图所示的草图。草图绘制完成后退出草图绘制。退出后的对话框见图2设置(深度可以随便设置,只要贯穿了就行了)
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3、切除完成以后,给外圆导一个半径为1的角。
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https://iknow-pic.cdn.bcebos.com/96dda144ad345982ef2ad2f203f431adcbef8429"/>
4、点击图一所示的地方,随之弹出一个对话框,选择“从方程”——完成——在选取坐标系——笛卡尔——在输入第五步的方程(直接复制过去就行了)——方程输入完毕,点击记事本的保存,然后退出——确定,到现在我们就可以看见齿轮周围出现了一个曲线。
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5、m=3 z=81 a=20 r=(m*z*cos(a))/2ang=t*90s=(pi*r*t)/2y=r*cos(ang)+(s*sin(ang))x=r*sin(ang)-(s*cos(ang))z=0/*需要将X\Y\Z后面的值调换一下。
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6、在FRONT平面上面绘制2个同心圆(齿根圆和分度圆)在使用右边我框选的红色部分的命令按钮,选择刚刚绘制的渐开线,这样就完成了渐开线在这个图中的绘制。
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7、然后再添加一个相交点(该点为:分度圆与渐开线的交点)然后在绘制一条经过坐标原点与该交点相交的中心线,和一条普通的经过坐标原点的中心线,约束角度为1.11度(90/齿数),第二条中心线绘制完成便将我们绘制的渐开线镜像过去。
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8、草图绘制完成后,退出草图绘制,选择切除,记住要将齿轮完全切除,不要只切一点。结果如图所示。
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9、完成以后,在进行导圆角,并建立一个组。组建立完成以后,我们就进行阵列,阵列设置如图四,轴为中间那个轴不要选错了。
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https://iknow-pic.cdn.bcebos.com/d52a2834349b033b1ff1cbba1ace36d3d539bd50"/>
10、到此,一个齿轮便绘制完成了。
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