The equipment needed for robot welding comprises various elements. Apart from the robot you will need a welding package, a work piece positioner in case the assembly is a more complex and requires to be turned over so it can be welded in a favourable welding position.
Components must be held in a fixture, whilst complex cells may have a separate PLC and HMI instead of just the robot controller. Guarding and safety equipment ensure that the cell can be operated safely. All these elements are combined in a robotic welding system or robotic welding cell.