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Sweep scan path planning for efficient freeform surface inspection on five-axis CMM

机译：扫描扫描路径规划，可在五轴坐标测量机上进行有效的自由曲面检测

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摘要

Compared with the traditional 3-axis coordinate measuring machine (CMM), a 5-axis CMM equipped with the capability of continues sweep scanning can provide much denser data points while taking much shorter time. This paper presents an automatic sweep scan path planning system that generates a continuous sweep scanning path for the inspection of an arbitrary free-form surface using a 5-axis CMM with three translational axes and a rotary head with two very light rotary axes. The system strives to significantly improve the scanning efficiency by utilizing the superb kinematic advantages of the two rotary axes, which have very low moment of inertia, to cover a larger area, while tremendously reducing the speed and acceleration demand on the three translational axes which have much larger inertia. The path is generated from a mesh model of the freeform surface and an iterative approach is used to ensure that the stylus contacts the surface at an acceptable angle during the entire scan. Physical scanning experiments are perfofmed and the test results show significant improvement in scanning efficiency by the proposed sweep scan path planning method when compared with some existing continuous scanning path planning approaches such as the standard isoparametric or zigzag method. (C) 2016 Elsevier Ltd. All rights reserved.
机译：与传统的3轴坐标测量机（CMM）相比，具有连续扫描扫描功能的5轴CMM可以提供更密集的数据点，同时所需的时间要短得多。本文介绍了一种自动扫掠扫描路径规划系统，该系统可生成连续的扫掠扫描路径，以使用具有三个平移轴的5轴坐标测量机和具有两个非常轻的旋转轴的旋转头来检查任意自由曲面。该系统力图通过利用两个转动轴的极佳运动学优势来显着提高扫描效率，这两个转动轴具有非常低的惯性矩，可覆盖更大的面积，同时极大地降低了三个转动轴的速度和加速度需求。更大的惯性该路径是从自由曲面的网格模型生成的，并且使用迭代方法来确保手写笔在整个扫描过程中以可接受的角度接触表面。进行了物理扫描实验，并且与某些现有的连续扫描路径规划方法（例如标准等参或Z字形方法）相比，所提出的扫描扫描路径规划方法显着提高了扫描效率。 （C）2016 Elsevier Ltd.保留所有权利。

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