Welding Torch Trigger Switch for Simulation and Live-Arc Training

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Solution Overview

Problem

Welding training systems are often expensive and may not adequately train operators to perform high-quality welds, limiting their effectiveness in preparing operators for manual welding operations.

Innovation Solution

A welding training system that includes a welding torch with a mechanically actuated trigger switch and an electrically actuated training switch, coupled with control circuitry, allowing for simulation and live-arc training modes, integrated with a computer-based training software that controls power flow and provides interactive training simulations, including virtual and augmented reality modes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If welding training systems use simulation-only methods, then cost is reduced, but training effectiveness and quality are insufficient

Engineering Contradiction:
Improvetraining effectivenessVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system dynamically switches between simulation mode and live-arc mode based on training requirements. The training switch allows seamless transition between virtual welding simulation and real welding arc practice, enabling the system to adapt its complexity level to match the trainee's progression from beginner to advanced skills.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The welding training system serves multiple functions: it can operate as a pure simulation trainer for basic technique practice, as a live-arc trainer for hands-on welding experience, or as a hybrid system combining both modes. This multi-functionality allows a single system to replace multiple separate training devices.

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

2Reliability

If welding training systems provide comprehensive real welding training, then training quality improves, but cost increases

Engineering Contradiction:
Improvetraining qualityVSAvoidacquisition cost
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The system provides partial real welding experience through controlled live-arc mode, allowing trainees to practice actual welding techniques only when necessary and appropriate, rather than requiring full-scale industrial welding equipment for all training scenarios. This partial action approach delivers sufficient training quality at reduced cost.

Inventive Principle:
Principle #16Partial or excessive action

Solution Approach 2:

The simulation mode creates a virtual copy of the welding environment, allowing trainees to practice welding techniques, procedures, and safety protocols in a cost-effective virtual representation that closely mimics real welding conditions without the associated material and equipment costs.

Inventive Principle:
Principle #26Copying

3Ease of manufacture

If welding training systems limit the number of units acquired, then cost is reduced, but training capacity is limited

Engineering Contradiction:
Improveacquisition costVSAvoidtraining capacity
Core Design Contradiction:
Ease of manufactureVSProductivity

Solution Approach 1:

Each welding training system unit is designed to be universally applicable for multiple training purposes and skill levels. By making each unit multi-functional, institutions can acquire fewer units while still providing comprehensive training capacity, as each unit can serve various training modules and accommodate different numbers of trainees through simulated and live-arc modes.

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

Data Source

PatentEP2973506B1Welding torch for a welding training system
Publication Date: 2020.02.12 ILLINOIS TOOL WORKS INC
  • EP2973506B1 patent drawingFigure 1
  • EP2973506B1 patent drawingFigure 2
  • EP2973506B1 patent drawingFigure 2A~3

AI summary

A welding training system includes a welding training software having a first training mode configured to simulate a welding arc and a second training mode configured to use a live welding arc. The welding training system is configured to block welding power flow between a welding power supply and a welding torch while the welding training software is in the first training mode. The welding training system is also configured to enable the welding power to flow between the welding power supply and the welding torch while the welding training software is in the second training mode.