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在采用非接触式三维扫描技术对硬质合金可转位刀片槽型复杂曲面扫描的过程中,通过修正相机镜头畸变提高扫描精度,运用Geomagic Studio软件对点云数据进行噪声去除、点云拼接和特征提取等系列处理保证重构模型的准确性。重构刀片的三维模型经过与原始点云数据的误差比较,大部分的偏差值在(-0.011,0.011)区间内,满足精度要求。在扫描过程中,应选择刀片主要特征表面进行扫描,以减少扫描角度及扫描次数。同时,根据重建模型的曲面特征对数据块进行曲面修改,可以更有效、快捷的优化该刀片槽型的设计。
In the process of scanning non-contact 3D scanning technology on the complex curved surface of the carbide indexable insert slot, the camera lens distortion was corrected to improve the scanning accuracy. Geomagic Studio software was used to remove the noise from the point cloud data, Feature extraction and other series of processing to ensure the accuracy of the reconstruction model. Reconstruction of the blade after the three-dimensional model with the original point cloud data error, most of the deviation in the (-0.011,0.011) interval, to meet the accuracy requirements. During the scanning, the main characteristic surface of the blade should be selected for scanning to reduce the scanning angle and the number of scanning. At the same time, according to the surface features of the reconstruction model, the surface modification of the data block can optimize the design of the blade slot more effectively and quickly.