基于实体模型导入的铸件打磨三维仿真

摘要

A method for fast and high-precision grinding work was presented. In this method, open source code was used to import solid models from CAD/CAM system into a personal computer system to achieve the model's reconstruction and visualization, then　the required three-dimensional coordinates of points and the associated physical parameters were extracted in the human-machine interface to manipulate the external grinding platform. Three-dimensional dynamic simulations of casting grinding were realized by VC + + and OPenCASCADE. The simulated results show that the method has high accuracy, good real-time, easy implementation and can effectively take advantage of the digital characteristics of CAD/CAM model. It provides a solution for low-cost automated grinding production line.%提出一种能实现快速、高精度打磨的方法.该方法使用开源代码将CAD/CAM系统中的实体模型进行格式转换后导入到通用计算机系统中,以实现对模型的重建和可视化;在人机交互界面中,提取所需要的三维坐标点以及相关的物理参数信息后,操纵外围打磨平台按照提取的坐标点对铸件进行打磨.利用VC+ +和OpenCASCADE实现了铸件打磨的三维动态仿真.仿真结果表明:该方法准确性高,具有较好的实时性,实现方法简单易行,能够充分发挥CAD/CAM模型的数字参数化特点.为低成本自动化打磨生产线的实现提供了一种解决思路.