Turbine Guide Vanes Of The Surface State Database And Grinding Control

The low efficient and inaccuracy always annoys the great hydraulic power station. This paper presents the constitution of the grinding machine for the repairing hydraulic turbine guide vane with the computer directly controlling and it's hardware and software. It emphasizes on the controlling method based on the position/force control, and it also includes the 3-D graphic showing and the data management with database .This graphic module is about the showing of the hydraulic turbine blade' standard and after-repairing graph. The method based on the Open Graphic Language (OpenGL) and the 3-D graph can be showed in the graph dialog. This method combined the Graphic technique, Object-Oriented technique and Visualization technique to reappearance the graph of the hydraulic turbine blade. The brief introduction and operation of the OpenGL the read and process of the model data the setup of the view port light and material, the two ways of the plot and so on.There are many data occurred during the grinding process, so the database is adopted to realize the management of these data. The database management module includes the constitution of the data, the dispose and the realization of the management. This method based on the Microsoft company's software Access. Used the Objection program language Visual C++ and the ADO interface the hydraulic turbine blade's database management module is developed. Through it, the convenient transfer and the facility management can be realized to the all kinds of data.Although the windows system has many advantage such the multitask the graphical user interface the hardware compatibility and the Win32 software environment, it has itself shortage. Because the Windows is the event-driven system and the random of the event, it is very hard to know the next task. So the real-time control is very important. The interruption technique and the multithread is used to realize the real-time control. The real-time control includes the module of the position control interpolation calculations signal acquisition the graph and data's real-time display and human-machine interface.