Development Of Robot Processing Equipment And Its Application In Milling Of Die Castings

In manufacturing,die casting has been widely used in product molding,and the existence of flash burrs has always been an important factor affecting the quality of its products.Therefore,in the post treatment of die casting,the removal of flying burr is an important process to improve the quality of the product,and most of the industrial removal methods are adopted in the industry.However,with the gradual disappearance of the demographic dividend,and the adverse factors such as the bad working environment and high labor intensity,the use of robots instead of manual labor can reduce production costs and improve the quality of products.It is an inevitable trend to realize the automatic production of die casting parts.According to the production demand of medium pressure casting in traditional manufacturing industry,aiming at the shortage of robot in the post treatment of die casting,the robot milling edge equipment is developed,and the application of the robot in the die casting is studied.In this paper,the integrated system of removing material and flifting burr in the production of die-casting parts is established in this paper,which improves the level of production automation.The main contents of the paper are as follows:1.Aiming at the limitation of the traditional teaching programming of the robot,the CAD/CAM software programming technology is adopted to improve the programming efficiency and track precision,thus ensuring the quality of the product.2.Due to the actual installation and manufacturing error of the robot milling edge equipment,the deviation of the robot milling edge trajectory from the CAM space to the actual operating space is caused.In order to eliminate the trajectory deviation,two different spatial mapping consistency models are established.3.The virtual TCP technology is developed for the operation of robot workpieces in hand,and the machining trajectory is transformed with the help of the technology.The virtual trajectory generation of the robot grasping the die casting parts around the fixed cutting edge of the fixed tool is completed.4.The precision control method of robot milling edge processing is studied,and the error compensation method based on model scaling is proposed.By setting CNT parameters and milling edge speed,the precision of milling edge is improved.5.Experiments are carried out by using the developed robot milling equipment to verify the correctness and effectiveness of the CAD/CAM trajectory generation method,virtual TCP technology,and different spatial mapping consistency models.