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US 2019/0160583 A1Published application
Methods and systems using a smart torch with positional tracking in robotic welding
AssigneeLincoln Global, Inc.
InventorsWilliam Thomas Matthews, Lance F. Guymon
Life of this patent
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Abstract
A system and method of electric arc welding that includes a welding apparatus having an electric arc welder torch with sensors to determine the absolute position of the torch tip and the relative position of the torch tip to the weld joint during automatic welding. Combining absolute and relative positional data can be used to adjust the path of the robot during automated or robotic welding in response to variations in the weld joint.
Claims20
A method of automatic electric arc welding, comprising:
- determining a relative position of a welding torch to an actual weld path using a relative position sensor;
- determining an absolute position of the welding torch using an absolute position sensor;
- calculating a correction vector based on the relative position of the welding torch to the actual weld path and the absolute position of the welding torch when the actual weld path is different from a planned weld path;
- and
- moving the welding torch in accordance with the planned welding path and the correction vector.
2 more elements
A welding system, comprising:
- a welding device comprising a welding torch;
- a relative position sensor for sensing a relative position of the welding torch to an actual weld path;
- an absolute position sensor for sensing an absolute position of the welding torch;
- and
- a welding controller for controlling movement of the welding torch based on a planned welding path and a correction vector;
- wherein the welding controller comprises logic for calculating the correction vector based on the relative position of the welding torch to the actual weld path and the absolute position of the welding torch when the actual weld path is different from the planned weld path.
3 more elements
A welding system, comprising:
- a means for welding with a welding torch;
- a means for moving the welding torch in accordance with a planned welding path and a correction vector;
- a means for determining a relative position of a welding torch to an actual weld path and determining an absolute position of the welding torch;
- a means for calculating a correction to the movement of the welding torch based on the relative position of the welding torch to the actual weld path and the absolute position of the welding torch.
1 more element
Dependencies are inferred from the claim text.