Weld Training Torch With Haptic Feedback for Low-Cost Skill Practice

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Solution Overview

Problem

Conventional weld training systems are expensive, limiting the availability and duration of hands-on training for welding operators, as they often rely on virtual or augmented reality methods that do not effectively simulate the tactile and auditory feedback of real welding processes.

Innovation Solution

A cost-effective weld training device that simulates the look, feel, and sound of a real welding torch using a vibration module, proximity sensors, and audio feedback, allowing for interactive and adaptive training through communication with external devices like smartphones, and providing real-time feedback on technique.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If conventional virtual or augmented reality training systems are used, then training coverage and accessibility are improved, but the cost of training systems increases significantly

Engineering Contradiction:
Improvetraining accessibilityVSAvoidtraining system cost
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent creates a simplified copy of a real welding torch that replicates its essential operational characteristics (weight, ergonomics, trigger mechanism) without requiring expensive virtual reality hardware. This allows trainees to practice welding techniques using an affordable physical replica that can be used anywhere, dramatically improving accessibility while maintaining low costs

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The training torch is designed as a low-cost, disposable or easily replaceable device that does not require expensive infrastructure. Each torch can be used extensively and then replaced if needed, eliminating the need for costly maintenance and setup associated with virtual reality systems, making training universally accessible

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

2Adaptability or versatility

If virtual or augmented reality training methods are used, then training system coverage is improved, but the tactile and auditory feedback simulation of real welding processes deteriorates

Engineering Contradiction:
Improvetraining method varietyVSAvoidtactile feedback accuracy
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The training torch physically replicates the tactile sensations of real welding through its weight, balance, and vibration characteristics. The haptic feedback mechanism simulates the resistance and vibrations experienced during actual welding operations, providing authentic tactile feedback that virtual reality cannot deliver

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The torch incorporates separate feedback mechanisms (vibration motor, audio speaker) that can independently simulate different aspects of real welding. The vibration module reproduces arc-induced vibrations while the audio module plays recorded welding sounds, allowing each sensory channel to be optimized independently for realistic simulation

Inventive Principle:
Principle #1Segmentation

3Reliability

If real welding torches are used for training, then tactile and auditory feedback accuracy is improved, but training costs and safety risks increase

Engineering Contradiction:
Improvefeedback realismVSAvoidtraining system cost
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The training torch is designed as an inexpensive replica that can be freely distributed to multiple trainees without concern for damage or loss. Unlike real welding torches that require expensive equipment, safety gear, and controlled environments, these training torches can be used anywhere at minimal cost while providing realistic feedback

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

Solution Approach 2:

The invention extracts only the essential tactile and auditory feedback elements from real welding operations and reproduces them through the vibration motor and audio speaker. This eliminates the need for actual welding equipment, gas cylinders, and power sources, retaining realism while removing cost and safety hazards

Inventive Principle:
Principle #2Taking out (Extraction)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enables effective and affordable hands-on training by simulating the tactile and auditory aspects of welding, improving operator technique and reducing the costs associated with traditional training systems.

Implementation Method 1

a vibration module within the torch body and mechanically coupled to the tip, the vibration module configured to vibrate in response to the detection of at least one of the trigger actuation or a proximity between the tip and the workpiece during the simulated welding operation

Methodology Applied
Scientific EffectVibration: Vibration

Data Source

PatentUS11403962B2System and method for weld training
Publication Date: 2022.08.02 ILLINOIS TOOL WORKS INC
  • US11403962B2 patent drawing
  • US11403962B2 patent drawing
  • US11403962B2 patent drawing

AI summary

A weld training device to provide a trainee with a real-world look and feel of a welding torch without the need to provide a welding arc. The weld training device provides adaptive vibration to simulate a welding operation. The weld training tracks performance and provides feedback to a trainee via a local display and/or via a communication to an external computing device.