The integration of industrial robots and forming machine tools can not only solve the employment problem of enterprises, but also improve processing efficiency and safety, improve processing accuracy, and have great development space. The automotive industry has always been the main application field of robots in the past. With the increase in automation demand, the application of industrial robots has been further expanded. In addition to traditional welding applications, robots have also been widely used in machine tool loading and unloading, material handling and stacking, grinding, spraying, assembly and other fields. Metal forming machine tools are an important part of machine tools. Forming processing is usually associated with high labor intensity, noise pollution, metal dust, etc. Sometimes it is in a high temperature and high humidity or even polluted environment. The work is simple and boring, and it is difficult for enterprises to recruit people.
Integrated application of CNC bending machine
There are two main ways to integrate the application of robot bending. One is to use the bending machine as the center, and the robot is equipped with a vacuum suction cup, a magnetic sheeting loading rack, a positioning table, a unloading table, and a flip rack to form a bending unit. The second is a flexible sheet processing line formed by robots and laser equipment or CNC rotary punch presses, industrial robot walking axes, sheet material transmission lines, positioning tables, and vacuum suction cup grippers. Estun uses its own technology and platform in robot control system and machine tool CNC system to achieve seamless connection, develop bending software package, and realize closed-loop control of robot support during bending process. At different bending speeds, the robot realizes full tracking of automatic matching, and the bending software package also shortens the bending teaching time from 2-3 days in the past to 2-3 hours. It is well applied in the processing of switch cabinets, file cabinets, elevators, anti-theft doors, etc.
Integrated application of press stamping
There are two main ways to integrate robot and press stamping. One is single robot stamping loading and unloading: the robot transfers the sheet from the destacking table to the positioning table, and then transfers it to the press mold for stamping after positioning. After the stamping is completed, the robot takes the material and puts it into the stacking table, realizing the automatic loading and unloading of a single press robot. The second is robot stamping connection: multiple robots are used to establish a stamping connection between multiple presses. According to the requirements of the workpiece forming process, it is necessary to cooperate with multiple presses for processing. The entire production line consists of a destacking robot, a loading robot, a transfer and handling robot between presses, and a tail line robot. Compared with the manipulator of linear coordinates, the use of industrial robots is more flexible, has no equal height requirements for the mold, and is easy to integrate. Aoli Machine Tool Network believes that the use of the autonomous press control system and the robot control system can achieve the best coordination between the robot's movements and the press, and the use of the field bus can maximize the efficiency of the entire production line and make it safer.
Hot die forging integrated application
The hot die forging production line usually consists of two die forging presses, one for stamping and the other for trimming. The hot die forging robot integrated application usually configures two robots, one is responsible for transferring the high-temperature material treated by the medium frequency furnace to the stamping die forging press, and the other is responsible for taking the material from the stamping die forging press and transferring it to another die forging press for trimming. In order to prevent the high-temperature stamping workpiece from sticking to the die, the die needs to be lubricated with graphite after each stamping. The lubrication can be completed by the robot or by a special mechanism. Since forging is a harsh environment with high temperature, high humidity and graphite lubrication, special attention should be paid to the protection of the robot and the robot's own ability to resist heat radiation. The 4-5-6 axis motor of Estun's robot has the structural characteristics of self-avoiding heat radiation at the connection between the robot's big arm and small arm. Install an electronic cam control system on the die forging press to coordinate the operation of the die forging press with the operation of the robot, improve processing efficiency, and enhance the safety of the system.
Welding application
Welding is the post-process of forming machine tool plate processing. Robot welding has two types: resistance welding and arc welding. The application of welding robots accounts for more than 40% of the entire robot application. Arc welding application is based on the robot as the core, and is equipped with welding machines, wire feeders, welding guns, fixtures, etc. to form a welding workstation. Estun can provide 6kg special arc welding robot workstations with arm lengths of 1400, 1600 and 2000mm. Resistance welding application is based on the robot as the core, and is equipped with spot welding guns, welding controllers, water and gas units, pipeline packages, fixtures, etc. to form a spot welding workstation. Estun can provide a dedicated resistance welding robot workstation with a weight of 220kg and an arm length of 2600mm. In addition, Estun Automation has developed a dedicated welding software package for welding applications, integrating the welding expert process parameter library into the robot system to meet various types of needs.
Robots are typical representatives of advanced manufacturing technology and automation equipment, and intelligent industrial equipment has become the basis for the upgrading and transformation of the global manufacturing industry. Today, industrial robots have been widely used in the field of metal forming machine tools. The integrated application of industrial robots and CNC machine tools has made intelligent manufacturing, digital workshops, and smart factories move from concept to reality.
