Geometric accuracy of CNC machine tools

Proceedings of the 16th International Conference on Mechatronics - Mechatronika 2014 Pub Date : 2014-12-01 DOI:10.1109/MECHATRONIKA.2014.7018268

Michal Holub, J. Knobloch

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引用次数: 10

Abstract

The present article is dedicated to the identification and interpretation of geometric errors of CNC machine tools. Identification of geometric errors plays a large role in the construction of the so-called “Error maps”. These maps can be used to describe the behaviour of the machine in the workspace without load or under conditions of finishing operations. Interpreting the error maps represents a tool to check the state of the machine for the user and to offer the important information for the machine manufacturer. From this information it is possible to identify “weak” points of the machine. Simultaneously, the information on the geometrical errors is used to compensate for machine tools. When constructing the maps, a selection of the measuring device and ambient conditions plays an important role. The paper focuses on the use of measuring equipment LaserTRACER and construction of the error map for the workspace of horizontal three-axis milling machine. It also describes the options of how to monitor the workspace of the machine and their mutual evaluation.

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数控机床的几何精度

本文致力于数控机床几何误差的识别和解释。几何误差的识别在构建所谓的“误差图”中起着很大的作用。这些图可以用来描述机器在没有负载的工作空间或在精加工条件下的行为。解释错误图代表了为用户检查机器状态和为机器制造商提供重要信息的工具。从这些信息中可以找出机器的“弱点”。同时，利用几何误差信息对机床进行补偿。在绘制地图时，测量设备和环境条件的选择起着重要的作用。介绍了卧式三轴铣床工作空间测量设备LaserTRACER的应用及误差图的建立。它还描述了如何监视机器的工作空间及其相互评估的选项。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Proceedings of the 16th International Conference on Mechatronics - Mechatronika 2014

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