大型球面复杂孔系制造在线测量与控制补偿技术

项目名称： 大型球面复杂孔系制造在线测量与控制补偿技术

项目编号： No.51275350

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 机械、仪表工业

项目作者： 曲兴华

作者单位： 天津大学

项目金额： 80万元

中文摘要： 重大装备精密制造是研究热点，对于5m以上的大型球面孔系，经常无法在一个固定坐标系下加工，若采用多基准制造模式，精度难以保证，同时缺乏有效方便的在线测量和实时补偿手段，往往进行二次调整切削等。本项目提出了大型球面复杂孔系制造在线测量与控制补偿方法，主要内容包括：构建大尺度制造空间统一基准制造、测量与控制模型；探索多角度交汇与双轴正交惯性测量组合的在线测量技术；形成基于在线测量与制造系统自身测量的内外测量数据统一、融合的超前动态控制模式。拟解决的关键技术包括：移动平台、刀具与在线测量系统在制造空间的总体布局、集成和外部控制方式；基于数字摄影的大空间全局测量控制网、基于双轴正交惯性测量系统和制造系统光栅、编码器的终端测量站的建立、配置和优化；全局整体性多系统动态关联、统一与分层等。为重大装备现场原位制造提供精密在线测量与控制补偿技术，促进我国重大装备制造技术的发展。

中文关键词： 大尺寸坐标；在线测量；角度交汇；双轴正交惯性测量；实时控制补偿

英文摘要： Precision manufacturing of major equipment is a hot research topic. Large sized workpiece over 5m could not be able to complete a one-time automated processing in a fixed global coordinate system. Because of the cumulative error and multiple baseline manufacturing, the overall accuracy is difficult to be guaranteed. There are lots of questions in the traditional manufacturing such as the lack of effective real-time measurement and a second cutting is necessary in the processing. The project proposes a situ processing and digital manufacturing scheme for major equipment based on real-time measurement and control compensation techniques, including: a large size coordinate system, a unified benchmark manufacturing solutions, the overall structural design and optimized configuration; An on-line precision measurement and control system in large space based on the real-time measurement method combined with dual-axis orthogonal inertial measurement; the integration, preferred order and weight distribution for measurement module data flow based on manufacturing precision analysis and evaluation method of multi-redundant measurement data; the optimization of kinematic model and error separation for manufacturing platform and the calibration method in the field environment; the delay analysis of control system in the man

英文关键词： great dimension coordinate；on-line measurement；angle intersection；dual-axis orthogonal inertial measurement；real-time control and compensation