基于激光扫描的零件毛坯优化设计技术研究

Research on Optimization Design Technology of Part Blank Based on Laser Scanning

机加零件在飞机零件上的占比逐步增多,传统的毛坯尺寸、形状推导方法往往存在部分区域加工余量不足或加工余量过大的情况,导致毛坯加工中出现残品与浪费现象。针对这种情况,首先提出一种基于激光扫描的零件毛坯优化技术,将激光扫描技术应用于零件毛坯的优化设计,通过将毛坯点云与零件CAD模型拟合求解出毛坯在各加工面上的加工余量,其次研究了该技术的关键点并结合某型飞机某零件完成零件毛坯的可加工性评价与优化设计,相关应用取得了良好的经济效益。

Machine parts in aircraft parts on the proportion gradually increased. The machining allowance of the traditional derivation method of blank size, shape part is partly insufficient or too large, resulting in scrap and waste phenomenon of rough machining. In this case, a optimization technology of parts based on laser scanning optimization design of blank is proposed, through fitting the blank point cloud and CAD model, machining allowance on each processing surface of blank parts is solved. Then the key point of the technology is studied. The machinability evaluation and optimization design of blank parts is completed combined with the part of a certain type of aircraft, and related applications have achieved good economic benefits.