Positioning method for complex construction of workpieces based on deflection measurement technology

Ting Chen; Xiangchao Zhang; Wei Wang; Min Xu

doi:10.1117/12.2692355

18 December 2023 Positioning method for complex construction of workpieces based on deflection measurement technology

Ting Chen, Xiangchao Zhang, Wei Wang, Min Xu

Proceedings Volume 12968, AOPC 2023: Optic Fiber Gyro ; 129680B (2023) https://doi.org/10.1117/12.2692355
Event: Applied Optics and Photonics China 2023 (AOPC2023), 2023, Beijing, China

Abstract

Phase measuring deflectometry (PMD) is a high-precision and low-cost measurement method for specular surface. The simple system configuration and nanoscale measurement accuracy make it possible to integrate the fabrication and testing systems of ultra-precision components, which is of great significance to the improvement of manufacturing efficiency and reliability. In machining, workpiece clamping is a key step before turning. However, repeated the clamping error of the workpieces will reduce the accuracy of manufacturing. Therefore, an alignment method is needed to obtain the actual position of the remounted workpiece to ensure machining quality. A method is proposed to realize non-contact workpiece self-positioning using PMD. A positioning method is proposed with strong anti-noise ability based on PMD in this paper. By adding different centroid positioning errors to the camera target surface, it is verified that the positioning accuracy of the model can achieve a micron level and strong noise immunity. The method solves the problem of workpiece positioning using PMD without increasing the complexity of the system.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Ting Chen, Xiangchao Zhang, Wei Wang, and Min Xu "Positioning method for complex construction of workpieces based on deflection measurement technology", Proc. SPIE 12968, AOPC 2023: Optic Fiber Gyro , 129680B (18 December 2023); https://doi.org/10.1117/12.2692355

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