Helmet Weld Tracking With Tool-Motion Differentiation

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Solution Overview

Problem

Conventional weld tracking systems are limited in their ability to provide a portable and compact solution for tracking welding operations, failing to differentiate between helmet and tool movements, and offer real-time feedback and parameter adjustments.

Innovation Solution

A helmet-based weld tracking system equipped with sensor systems and control circuitry to monitor helmet and tool positions, orientations, and welding parameters, providing feedback and adjusting settings in real-time to ensure accurate welding techniques.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If conventional weld tracking systems are used, then welding operations can be tracked, but the systems are not portable or compact and cannot differentiate between helmet and tool movements

Engineering Contradiction:
Improvetracking precisionVSAvoidsystem portability
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent combines multiple tracking functions into a single helmet-mounted system. The helmet includes both a first sensor system for tracking helmet movement and a second sensor system for tracking tool movement, merging previously separate tracking functions into one integrated portable device that can differentiate between helmet and tool movements.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The helmet-based system serves multiple functions: tracking helmet position and orientation, tracking tool position and orientation, monitoring welding parameters, providing real-time feedback, and enabling portable weld tracking. This multi-functional approach replaces conventional fixed systems with a single versatile portable platform.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Manufacturing precision

If real-time feedback and parameter adjustments are implemented, then welding quality improves, but system complexity and computational requirements increase

Engineering Contradiction:
Improveweld qualityVSAvoidcontrol system complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The control circuitry continuously monitors welding parameters and tool movements, compares actual values against target values, and provides real-time feedback to the operator through the display. This closed-loop feedback system enables automatic parameter adjustments and corrective actions to maintain welding quality without requiring complex external monitoring systems.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system performs self-monitoring and self-adjustment of welding parameters. The control circuitry automatically detects deviations from target parameters and initiates corrective feedback, enabling the system to regulate its own operation and maintain welding quality without external intervention.

Inventive Principle:
Principle #25Self-service

3Measurement precision

If multiple sensor systems are integrated in the helmet, then tracking accuracy improves, but helmet weight and comfort are affected

Engineering Contradiction:
Improvetracking accuracyVSAvoidhelmet weight
Core Design Contradiction:
Measurement precisionVSWeight of moving object

Solution Approach 1:

The tracking system is segmented into two independent sensor systems: a first sensor system for tracking helmet movement and a second sensor system for tracking tool movement. This segmentation allows each sensor system to be optimized for its specific function, improving overall tracking accuracy while managing the weight distribution across different components of the helmet.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP4043139A1Helmet based weld tracking systems
Publication Date: 2022.08.17 ILLINOIS TOOL WORKS INC
  • EP4043139A1 patent drawingFigure 1
  • EP4043139A1 patent drawingFigure 2a~2b
  • EP4043139A1 patent drawingFigure 3

AI summary

Described herein are examples of weld tracking systems implemented via a welding helmet. The welding helmet includes weld tracking sensors configured to allow the welding helmet to track a welding-type tool and/or an arc generated by the welding-type tool. The welding helmet also includes helmet tracking sensors configured to allow the welding helmet to track its own position and/or orientation relative to a reference point in the welding environment. By tracking itself as well as the welding-type tool and/or arc, the welding helmet can differentiate between its own movement, and movement of the welding-type tool and/or arc. By implementing the weld tracking system in the welding helmet, the weld tracking system becomes portable and usable outside of the usual fixed confines of weld tracking systems.