Abstract

In this paper, techniques for machining and micro-structuring dimples and grooves on the interior of cylinders using an active rotating tool are discussed. Microscopic dimples and grooves patterned on the inner surface of a cylinder act as lubrication and reduce friction. The active rotating tool presented here is equipped with a gap sensor that can measure the distance between the tool, workpiece, and machining tip so that micron-scale dimples and grooves can be patterned and connected to piezoelectric actuators. Electronic control and power connections are made to the external controller via a slip ring. Accurate measurements of the distance between the tool and workpiece were used to increase the lubrication effect by machining patterns with uniform size and depth. It is difficult to accurately measure errors in cylinders of various shapes using a single gap sensor; thus, we employed two gap sensors to ensure accurate assessment of cylinder shape, and a least mean square algorithm was implemented to compensate for the measured runout errors, which were tracked and compensated using the gap sensor. The method presented here reduces errors on the inner face of a cylinder, and produces a uniform pattern.

中文翻译：

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使用旋转主动工具补偿估计误差并使用LMS算法开发微图案制造方法

摘要

在本文中，讨论了使用主动旋转工具在气缸内部加工和微结构化酒窝和凹槽的技术。圆柱内表面上的微小凹痕和凹槽可起到润滑作用并减少摩擦。此处介绍的主动旋转工具配备有一个间隙传感器，该间隙传感器可以测量工具，工件和加工尖端之间的距离，以便可以对微米级的凹痕和凹槽进行图案化并将其连接至压电致动器。通过滑环将电子控制和电源连接到外部控制器。通过对尺寸和深度均一的加工图案，可精确测量刀具与工件之间的距离，以增加润滑效果。使用单个间隙传感器很难准确地测量各种形状的圆柱体中的误差。因此，我们采用了两个间隙传感器来确保准确评估圆柱形状，并采用最小均方算法来补偿测得的跳动误差，该误差是使用间隙传感器进行跟踪和补偿的。此处介绍的方法可减少圆柱体内表面上的误差，并产生均匀的图案。