基于应变传感器的机床热变形预测

T. Moriwaki, E. Shamoto, M. Kawano
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引用次数: 2

摘要

提出了一种估计机床热变形的新方法,该方法一般由刀具与工件之间的相对位移来定义。与基于热电偶测量温度分布的传统方法不同,新方法基于应变分布的测量,被认为可以提供更准确的变形信息。针对传统应变计传感器无法测量含热影响的真应变,研制了一种新型应变计。将所研制的传感器应用于加工中心热变形的估计。报告了传感器的基本特性和热变形的估计结果。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Prediction of Thermal Deformation of Machine Tool With Strain Sensor
A new approach is presented to estimate the thermal deformation of machine tool, which is generally defined by the relative displacement between the tool and the workpiece. Unlike the conventional approaches based on measurement of the temperature distribution with thermocouples, the new approach is based on measurement of strain distribution, which is considered to give more accurate information about the deformation. A new sensor is developed to measure the true strain including the thermal influence, since it can not be measured by the conventional strain gauge sensors. The developed sensor is applied to estimation of the thermal deformation of a machining center. Fundamental properties of the sensor and the estimated results of thermal deformation are reported.
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