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首页> 外文期刊>Journal of Advanced Mechanical Design, Systems, and Manufacturing >Sensitivity Analysis in Ball Bar Measurement of Three-Dimensional Circular Movement Equivalent to Cone-Frustum Cutting in Five-Axis Machining Centers
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Sensitivity Analysis in Ball Bar Measurement of Three-Dimensional Circular Movement Equivalent to Cone-Frustum Cutting in Five-Axis Machining Centers

机译:五轴加工中心等效于圆锥台与截头台面切削的三维圆周运动的球杆测量中的灵敏度分析

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The present paper describes the sensitivity coefficient of measurement in the three-dimensional circular interpolation movement that is equivalent to cone-frustum cutting in five-axis machining centers with a tilting rotary table. The sensitive direction of a ball bar having a one-dimensional displacement sensor is parallel to its telescopic bar. In the present paper, the ratio of the measurement value to the actual error is defined as the sensitivity coefficient of measurement. The sensitivity coefficient of each axis is calculated by changing the apex angle and location of the cone-frustum. Different trajectories are obtained according to the attitude of the ball bar. This is due to the resulting variation in the sensitivity coefficient of the ball bar. If the ball bar is set parallel to the base circle of the cone-frustum, and if the center of the cone-frustum is positioned away from the centerline of the rotary table (in the positive direction of the linear axis that is perpendicular to the tilting axis of the table), the trajectory can be obtained appropriately.
机译:本文介绍了三维圆弧插补运动中的测量灵敏度系数,其等效于在带有倾斜转台的五轴加工中心中进行圆锥台截断。具有一维位移传感器的球杆的敏感方向平行于其伸缩杆。在本文中,将测量值与实际误差之比定义为测量的灵敏度系数。每个轴的灵敏度系数是通过更改顶锥角度和圆锥台的位置来计算的。根据球杆的姿态获得不同的轨迹。这是由于球杆灵敏度系数的变化所致。如果将球杆设置为与圆锥台的基本圆平行,并且圆锥台的中心远离旋转工作台的中心线(在垂直于圆锥台的线性轴的正方向上定位)桌子的倾斜轴),可以适当地获得轨迹。

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