3D逆向技术在复杂曲面产品反求设计中的应用

The Application of 3D Reverse Technology in the Complex Curved Surface Product Reverse Design

运用3D扫描技术,结合正、逆向建模软件,对失效零件的较复杂表面进行逆向反求设计。对复杂曲面的特征情况进行数据采集和点云处理,并通过Geomagic Design X进行逆向数字建模,重构3D数字模型。对重构后的曲面进行精度与质量分析,并通过UG软件进行曲面优化。反求得到修复3D数字模型后,应用UG基于此数字模型对复杂表面进行数控编程,然后加工出复杂曲面产品模型实体来进行验证。研究表明,逆向设计技术是产品实现再生设计的重要手段,可以为曲面修复实现高质、高效、低成本提供指导意义。

Completed the data acquisition and the point cloud processing of the complex curved surface by using 3D scanning technology,proceeded the reverse digital modeling and reconstructed the 3D simulation model with Geomagic DesignX.Then completed the precision and quality analysis of the surface reconstruction. At the same time,optimized the surface through the UG software, and using UG to complex surface NC programming based on the 3D digital model, worked out the complex curved surface to verify the product model entities. Studies have shown that reverse design is an important means of regeneration product realization design, it can provide guiding significance for surface repair to achieve high-quality,high efficiency and low cost.