Research On Products Of Digital Modeling Technology For Spraying Process

Application of the Robot Spraying Technology has become the main way to adapt to the automatic production and improve the surface quality of the products. The digital model of products is one of the key factors affecting the quality and efficiency of spraying. At the present time, there were some disadvantages of the digital model products in the Robot Spraying Technology. An algorithm of surface model of the object and a Parameter-Digital-Model for path planning technology were provided, which were based on digital modeling technology for spraying process. The main research work is as follows:A blocking processing of dynamic-datum was provided based on the surface-block technology. In this method, the permissible deviation between the spindle of spray gun and the normal of spray surface is used as the threshold to divide the triangular mesh model into blocks. Then, based on the method of boundary optimization based on NURBS, the problem of the saw-tooth boundary has been resolved, and the uniformity of layer is improved.A concept of Parameter-Digital-Model has been presented, and the method to build the Model has been studied. Not only, the characteristics of the object’s shape and the topological relations of the blocks were reflected in this digital model, also the spraying process parameters were composed highly in this digital model. In view of the Small-Blocks-Problem, the method of integration of small blocks has been presented, which can reduce the complexity of spraying trajectory planning.Finally, the prototype system of Parameter-Digital-Model generation based on algorithm of the paper is designed with the platform of VS2010, which combine with the MFC and OpenGL library. It is provided a platform for the spraying robot trajectory planning and improved the efficiency of path planning.