摘要
鉴于模具破损区域尺寸形状不规则难以使用传统方法建模,提出基于逆向工程技术的三维重建方法。针对破损模具采用了接触式测量与非接触式测量相结合进行测量,使用弦偏差采样法对点云数据进行精简等预处理,并进行模具曲面模型重建和三维实体化,最后提取破损区域三维实体数据,为激光熔覆修复提供三维数据,实现精确快速修复,减少后续切削工作量。
The mould’ s broken area is irregular, so it is difficult to model by traditional method. It puts for-wards to remodel the mould’ s broken area by Reverse Engineering technology. Non-contact measurement and contact measurement are both used to measure the broken mould. The pretreatment tasks are done inclu-ding the point cloud data reduction Chord where the deviation sampling method is used. The surface model of the mould is remodeled and solidified. The broken area is extracted and solidified, and it provides the im-portant data for the laser cladding . After finishing the 3D remodeling, the broken area has been repaired properly.
出处
《组合机床与自动化加工技术》
北大核心
2014年第9期33-34,38,共3页
Modular Machine Tool & Automatic Manufacturing Technique
基金
辽宁省教育厅科研项目(L2011101)
辽宁工业大学教师科研启动基金(X201102)
关键词
破损区域
点云
三维重建
实体建模
激光熔覆
broken area
point cloud
3D remodeling
solid modeling
laser cladding
