Spot welding, Arc welding and MIG welding – all are processes identified, revolutionized, and modernized by FANUC Robotics Welding Automation robots. Each has its own unique set of processes perfected by FANUC in the development of their Welding Automation robots.
MIG welding presents a significant and unique set of concerns. The aluminum MIG process requires unique control to achieve successful results, as the process is not as forgiving as steel. A good understanding of the welding process and how to control it with a robot is critical. From a robotic perspective, the welding process can be broken down into defined steps. As FANUC has developed cutting edge technology, so have our robots evolved - If you have inadequate equipment, an upgrade to the latest technology may be necessary. If you do not thoroughly understand the welding process, or how to program the robot to give you the desired results, FANUC also offers advanced training.
In general, equipment for automatic arc welding is designed differently from that used for manual arc welding. Automatic arc welding normally involves high duty cycles, and the welding equipment must be able to operate under those conditions. In addition, the equipment components must have the necessary features and controls to interface with the main control system. A special kind of electrical power is required to make an arc weld, the special power is provided by a welding machine also known as a power source. All arc-welding processes use an arc welding gun or torch to transmit welding current from a welding cable to the electrode. They also provide for shielding the weld area from the atmosphere. The nozzle of the torch is close to the arc and will gradually pick up spatter. A torch cleaner (normally automatic) is often used in robot arc welding systems to remove the spatter. All of the continuous electrode wire arc processes require an electrode feeder to feed the consumable electrode wire into the arc. Welding fixtures and work piece manipulators hold and position parts to ensure precise welding by the robot.
The productivity of the robot-welding cell is sped up by having an automatically rotating or switching fixture, so that the operator can be fixing one set of parts while the robot is welding another. To be able to guarantee that the electrode tip and the tool frame are accurately known with respect to each other, the calibration process of the TCP (Tool Center Point) is important. An automatic TCP calibration device facilitates this time consuming task.