Robot welding is a common name for automated welding where the welding torch is moved by an articulated arm robot during welding. The workpiece is attached to a stationary or moving welding fixture. The moving welding fixture may be attached, for example, to a workpiece positioner having one or more numerically controlled axes. The positioner may also be another articulated arm robot. Typically, the axes of the workpiece positioner are controlled by the controls of the welding robot, and the movements of the welding robot and the workpiece positioner operate in a synchronized manner with each other. To increase the working area of the welding robot, the robot can be mounted on a linear or 1-3 -axis portal in the desired position (e.g., hanging upside down).
The most common welding method used in robot welding is MIG/MAG welding, but the welding method can also be TIG welding, arc brazing, plasma welding, laser welding or hybrid laser welding.
The robot welding cell can be programmed online or offline:
Offline programming software is a wise investment if the batch sizes are small and the time spent to online programming would consume too much welding cell capacity.
In practice, robotic welding always uses automatic seam tracking, which can be based on welding voltage monitoring or machine vision.
ADDITIONAL INFORMATION: Ionix Robot Welding Cells
Ionix provides customized robot welding cells and engineering services for robot welding. Contact us for more information!