Research And Application Of The Processing Method Of CAD/CAM/Robot Integration

China's manufacturing industry is changing from labor intensive to technology intensive.The low efficiency,high pollution and high risk of traditional industry make the research and development of automatic machining equipment become very important.Robots have the advantages of low investment cost,large activity space and multi-axis flexibility compared to CNC,therefore,it is very popular in the process of upgrading the traditional industry.At present,the application of robots in the fields of welding,palletizing,assembling,drilling and so on can be basically achieved through teaching reproduction programming.But for large-scale and complex surfaces,the forming of three-dimensional products are difficult to achieve by relying on teaching reproduction programming,however,the CAD/CAM programming method based on product CAD model is the best choice for machining path generation.Aiming at the research and development of robot machining equipment,the following works are carried out in this paper:1.According to the characteristics of 3D product machining and the experience of advanced machining equipment at home and abroad,a set of robot machining equipment is developed,and a simulation system is established in the off-line programming software Roboguide of the robot.The integrated method of CAD/CAM and robot off-line programming are used to form a CAD/CAM/Robot integrated system to solve the problem of digital programming of robot machining equipment.2.In order to avoid the dislocation of bilateral machining,the mapping consistency between the robot simulation space and the working space should be established first when the CAD/CAM programming method is used to generate the path for bilateral machining of the product.The path of the two sides is registered in the robot simulation space,which ensures that the product can be registered through bilateral machining in the actual working space.3.Aiming at the characteristics of robot cutting products to remove redundant4.Materials by layer-cut method,a maximum contour optimization method is proposed.The algorithm is used to optimize the NC machining path directly from CAM software.After that,we use Vericut software to simulate the optimized tool path,and it is used to confirm that the tool path is accurate perfectly.The parameters of mapping consistency are used to postprocess the optimized tool path.The robot's machining path can be generated to process the product.The experimental result shows that the product processed by the maximum contour can not only complete the three-dimensional product entirely,but also improve the machining efficiency of the 3D product and reduce the tool wear.