摘要
叶片毛坯的精确定位是叶片数控加工的核心问题,为了提高叶片数控加工质量,保证叶片各处余量分配均匀,本文以叶片进排气边的自适应数控加工中的检测定位为研究对象,提出了一种基于模型重构的配准定位方法。该方法利用偏置模型的叶片测量方式提高了测量精度,对基于重构的测量模型进行变形与定位分析,得出较优的定位参数。通过仿真试验和对比分析,论证了本文方法的正确性。
The accurate location of blade blank is the core of the blade CNC machining, in order to improve the CNC machining quality of blade and ensure uniform allowance distribution throughout blade, taking the inlet and exhaust edge of the blade adaptive detection of CNC machining orientation as the research object, this paper proposes a registration and positioning method based on the model reconstruction.This method uses the measurement way of biasing blade model to improve the measuring precision, and then analysis the deformation and localization of the measurement model based on reconstruction, so as to get a better positioning parameters. The correctness of the method is demonstrated by simulation experiments and comparison analysis.
出处
《航空制造技术》
2016年第18期64-68,74,共6页
Aeronautical Manufacturing Technology
基金
"高档数控机床与基础制造装备"科技重大专项(2013ZX04001051)
关键词
变形叶片
配准定位
模型重构
余量分配
Deformable blade
Registration and positioning
Model reconstruction
Allowance distribution
