Evaluation of Synchronous Motion in Five-axis Machining Centers With a Tilting Rotary Table
Evaluation of Synchronous Motion in Five-axis Machining Centers With a Tilting Rotary Table
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DOI：
10.1299/jamdsm.1.24
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发表时间：
2007
影响因子：
0.9
通讯作者：
M. Tsutsumi;D. Yumiza;K. Utsumi;R. Sato
中科院分区：
文献类型：
--
作者：
M. Tsutsumi;D. Yumiza;K. Utsumi;R. Sato
本文提出了一种评定转台五轴联动加工中心平动轴和旋转轴同步误差的新方法。在测量两轴所描述的圆轨迹时，采用形状易于评价特定特征的圆轨迹。通过改变转台中心与圆周轨迹的距离、圆周轨迹半径和进给速度，模拟了不精确同步对圆周轨迹的影响。根据仿真结果确定了测量条件，并进行了球杆测量和加工实验。仿真和实验结果表明，该方法可用于评定平移轴和旋转轴的不精确同步。然而，仔细对准转轴中心和机床坐标原点对于评价同步精度很重要。旋转轴和圆路径的两个中心之间的距离与半径的比率为评估提供了有用的信息。
This paper proposes a new method for evaluating the synchronous inaccuracy of a translational axis and a rotational axis in five-axis controlled machining centers with a tilting rotary table. A circular trajectory whose shape is easy to evaluate the specific features is adopted for measuring the circular path described by the two axes. The influence of inaccurate synchronization on the circular path was simulated by changing the distance between the centers of the rotary table and the circular path, the radius of the circular path and the feed speed. Measurement conditions were determined based on the simulation results, and then ball bar measurements and machining experiments were conducted. From the simulation and experimental results, it is confirmed that the proposed method can be used for evaluating the inaccurate synchronization of a translational axis and a rotational axis. However, careful alignment of the center of the rotational axis and the machine coordinate origin is important for evaluating the synchronous accuracy. The ratio of the distance between both centers of the rotational axis and the circular path to the radius provides useful information for the evaluation.