论文标题

组合伺服误差预补偿和进给率优化 - 应用于3D打印机和精确运动阶段

Combined servo error pre-compensation and feedrate optimization -- with application to a 3D printer and precision motion stage

论文作者

Kim, Heejin, Okwudire, Chinedum E.

论文摘要

伺服误差预补偿和进给率优化通常是独立执行的,以提高制造机的准确性和速度。但是,这种独立的方法会导致生产力和制造业质量之间不必要的权衡。本文提出了一种新型的线性编程方法,用于组合伺服误差预补偿和进给率优化,但要遵守轮廓误差(公差)和运动学约束。将伺服误差预补偿纳入进纸率优化,可以更快的动作,而无需违反公差约束。在3D打印机上进行的实验和精度运动阶段分别用于证明循环时间减少43%和47%,而与独立方法相比,使用拟议的零件质量损害了零件质量。

Servo error pre-compensation and feedrate optimization are often performed independently to improve the accuracy and speed of manufacturing machines. However, this independent approach leads to unnecessary trade-offs between productivity and quality in manufacturing. This paper proposes a novel linear programming approach for combined servo error pre-compensation and feedrate optimization, subject to contour error (tolerance) and kinematic constraints. The incorporation of servo error pre-compensation into feedrate optimization allows for faster motions without violating tolerance constraints. Experiments carried out on a 3D printer and precision motion stage are respectively used to demonstrate up to 43% and 47% reduction in cycle time without compromising part quality using the proposed compared to the independent approach.

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