The bending robot is an automated equipment for bending and forming sheet metal, which can achieve efficient and accurate bending processing. The robot works mainly by a series of precise mechanical movements and sensor control, positioning the sheet metal in the mold and applying pressure to bend it into shape.
The bending robot has the characteristics of high precision, high efficiency and high adaptability, it can process different shapes of metal sheets by changing different molds, which is widely used in automotive, aerospace, electronics, construction and other fields. By adopting advanced mechanical design and technology, the bending robot can achieve precise control and processing of sheet metal, improving production efficiency and product quality.
The CNC sheet metal bending flexible processing unit with the robot as the core actuator is a highly automated equipment combination with the advantages of high efficiency, high quality and high flexibility. In the flexible bending unit, the selection of the right combination of components can provide better support for processing efficiency and flexibility. The bending accuracy depends on the accuracy of the press brake itself, the positioning accuracy of the robot, and the collaborative control between the robot and the press brakeThe difficulty of collaborative control lies in the speed matching between the robot and the press brake, as well as the running trajectory of the workpiece supported by the robotPoor follow-up effect will seriously affect the bending angle forming effect and the flatness of the plate surface, thus affecting the quality of the finished product.
Bending: The robot runs to the position of the bending machine, flattens the sheet on the lower die of the bending machine, and carries out precise positioning through the backstop finger sensor of the bending machine, and after the positioning is completed, the robot sends a bending signal to the bending machine, and cooperates with the bending machine to complete the bending action (, judging whether it is necessary to bend again, to decide whether to bend continuously. Bending is the key link, and the technical difficulty of bending lies in the coordination between the robot and the bending machine, that is, the bending follows. When the robot clamps or supports the sheet material for bending, the plate is deformed, and the robot needs to follow the sheet material to do an arc action according to a specific trajectory algorithm, and always maintain a relatively fixed position with the plate.
At present, whether it is a general standard six-axis robot on the market, or a special bending robot optimized for the bending process in the robot arm span or shape, it needs the support of the bending following algorithm, and there are very few cases that do not follow the bending. Without a good follow-up effect, the fixture or suction cup gripper will pull the workpiece due to the poor follow-up trajectory, forming wrinkles in the plate, which will affect the forming quality. The establishment of an accurate robot bending following motion model is helpful to establish a good tracking trajectory algorithm, so as to obtain excellent tracking results.
With the continuous development of the sheet metal manufacturing industry, robot bending has more and more broad application prospects, compared with the development of special bending robots, the development of bending following model algorithms suitable for general six-axis robots, and applied to general robots, the development cost is lower. With most of the industry's leading brands of robots and other auxiliary hardware, it can quickly promote the application of robot bending.