Grinding welding electrodes

A device for grinding a rod-shaped welding electrode, comprising:

• a rotating grinding tool;
• a rotary drive coupled to the rotating grinding tool;
• a pressing device that presses a surface region of the welding electrode to an abrasive contact surface region of the rotating grinding tool, wherein a contact surface area of the grinding tool forms a contact line;
• a moving device that moves the rotating grinding tool and the welding electrode relative to each other in order to grind a surface of the welding electrode, wherein the pressing device presses the welding electrode in an axial direction against the abrasive contact surface region and wherein the moving device moves the rotating grinding tool relative to the welding electrode on a curved path in a plane of movement, which extends transversely to the contact line and is parallel to a longitudinal axis of the welding electrode;
• and
• a holder for the rotating grinding tool that is arranged on a coupler mechanism which is provided with two actuating drives that enable the holder to be moved to any point within an operating range of a movement plane.