WELD OUTPUT CONTROL BY A WELDING VISION SYSTEM

• US 20160207134A1
• Filed: 01/20/2015
• Published: 07/21/2016
• Est. Priority Date: 01/20/2015
• Status: Abandoned Application

• Current Assignee: Illinois Tool Works Inc.
• Original Assignee: Illinois Tool Works Inc.
• Inventors: Albrecht, Bruce, Beeson, Richard, Becker, William J.
• Application Number:
  US14/600,116
• Publication Number:
  US 20160207134A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B23K 9/0953 using computing means
• CPC Class Codes: B23K 9/0956 using sensing means, e.g. optical
• CPC Class Codes: B23K 9/1006 Power supply
• CPC Class Codes: B23K 9/124 Circuits or methods for feeding welding wire
• CPC Class Codes: B23K 9/126 Controlling the spatial relationship between the work and the gas torch between wire tip and piece B23K9/073
• CPC Class Codes: B23K 9/322 Head protecting means masks, shields or hoods for weldersp A61F9/06
• CPC Class Codes: G06F 3/012 Head tracking input arrangements
• CPC Class Codes: G06F 3/017 Gesture based interaction, e.g. based on a set of recognized hand gestures interaction based on gestures traced on a digitiser G06F3/04883

Abstract

A system comprises one or more image sensors, processing circuitry, and communication interface circuitry. The image sensor(s) are operable to capture an image of a weld in progress powered by welding equipment. The processing circuitry is operable to, while the weld is in progress, analyze pixel data of the image, generate a welding equipment control signal based on the analysis of the pixel data, and output the generated welding equipment control signal via the communication interface circuit. The image sensor(s), processing circuitry, and communication interface circuitry may be integrated into welding headwear. The processing circuitry may be operable to determine, from the analysis of the pixel data, one or more welding parameters for the weld and to compensate for variations in the parameters by varying the welding equipment control signal to vary the welding equipment settings.

Claims

1. A system comprising:

one or more image sensors, processing circuitry, and communication interface circuitry, wherein;

said one or more image sensors are operable to capture an image of a weld in progress, wherein welding equipment provides power for forming said weld;

said processing circuitry is operable to;

perform an analysis of pixel data of said image;

generate, while said weld is in progress, a welding equipment control signal based on said analysis of said pixel data; and

output, while said weld is in progress, said welding equipment control signal via said communication interface circuitry.

2. The system of claim 1, wherein said one or more image sensors, said processing circuitry, and said communication interface circuitry are integrated into welding headwear.

3. The system of claim 1, wherein said welding equipment control signal controls one or both of a voltage and an amperage output by said welding equipment while said weld is in progress.

4. The system of claim 3, wherein said processing circuitry is operable to:

determine, from said analysis of said pixel data, the travel speed of a torch being used for said weld; and

vary said welding equipment control signal to vary said one or both of a voltage and an amperage to compensate for variations in said travel speed.

5. The system of claim 3, wherein said processing circuitry is operable to:

determine, from said analysis of said pixel data, the contact tip-to-work distance for said weld; and

vary said welding equipment control signal to vary said one or both of a voltage and an amperage to compensate for variations in said contact tip-to-work distance.

6. The system of claim 1, wherein:

said welding equipment comprises a wire feeder; and

said welding equipment control signal controls the speed at which wire is supplied for said weld by said wire feeder.

7. The system of claim 6, wherein said processing circuitry is operable to:

determine, from said analysis of said pixel data, the travel speed of an torch being used for said weld; and

vary said welding equipment control signal to vary said speed at which wire is supplied to compensate for variations in said travel speed.

8. The system of claim 6, wherein said processing circuitry is operable to:

determine, from said analysis of said pixel data, a contact tip-to-work distance for said weld; and

vary said welding equipment control signal to vary said speed at which wire is supplied to compensate for variations in said contact tip-to-work distance.

9. The system of claim 1, wherein said analysis of said pixel data of said image comprises determination of one or both of:

brightness of a welding arc, and position of said welding arc within said image.

10. The system of claim 1, wherein said processing circuitry is operable to determine, from said analysis of said pixel data, a welding parameter for said weld in progress.

11. The system of claim 10, wherein said processing circuitry is operable to, upon detecting that said welding parameter is outside of a determined tolerance, vary said welding equipment control signal.

12. The system of claim 10, wherein said processing circuitry is operable to, upon detecting that said welding parameter is outside of a determined tolerance, generate one or more of an audible warning, a visual warning, and a tactile warning.

13. The system of claim 10, wherein said processing circuitry is operable to, upon detecting that said welding parameter is outside of a determined tolerance, trigger a shutdown of said welding equipment.

14. The system of claim 10, wherein said processing circuitry is operable to:

store said pixel data to memory;

store said determined welding parameter to memory; and

compare said welding parameter to a determined tolerance stored in memory.

15. The system of claim 14, wherein said variance of said welding equipment control signal varies one or both of a voltage and an amperage supplied for said weld.

16. The system of claim 10, wherein said welding parameter comprises one of:

travel speed, work angle, travel angle, aim, and contact tip-to-work distance.

17. The system of claim 1, wherein said communication interface circuitry is operable to communicate via conductive, optical, or wireless communication media.

18. The system of claim 1, comprising a display operable to present, in real-time, said captured image.

19. The system of claim 1, wherein said processing circuitry is operable to receive, via said communication interface circuitry, present settings of said welding equipment.

20. The system of claim 19, wherein said generation of said welding equipment control signal is based on said present settings of said welding equipment.