实物制造依据包括样板、标准样件、模具等多种类型,由于种类形式各异、复杂曲面和复杂刻线并存,将其转化为数字化模型难度较大.在分析实物制造依据设计要素的基础上,综合采用摄影测量、结构光扫描测量和光学追踪的接触式测量,实现复杂实物制造依据三维数据的高精度完整采集;根据实物的大小、形式、复杂程度的不同给出测量策略和模型重建方法,提出一种以曲面外形与基准刻线等关键测量数据为基础、结合理论二维图纸的复杂实物数字化转化方法,精度能够满足要求,又大大提高了测量与模型重建的整体效率.%In aircraft manufacturing, there are various types of physical toolings such as template, master tooling, mould and so on. It is quite a challenge to convert these physical toolings to digital ones due to their variable forms and complex shapes which comprise freeform surfaces, complicated carved curves and details. In this paper, the 3D metrology and model reconstruction method for digitizing the physical toolings are discussed. First, the crucial geometry elements in design of aircraft manufacture tooling are summed up and analyzed. Then, an integrated 3D metrology, which composites a photogrammetry, a structure light scanner, and an optical tracking tactile probe, is utilized to capture the physical toolings. The integrated metrology combines the advantages of all of the three techniques and is able to provide measuring data with completeness and high precision. Thereafter the strategy for improving the process efficiency is presented by considering the size, form and complexity of the physical toolings. For the tooling with large size and high complexity, the converting strategy is set to not use the whole measuring data, but the surface point clouds, a few basis carved curve points which indi-cate the structure of the aircraft, and the existing 2D drawings. It is highly efficiency and the precision meets the needs.
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