Helmet-Integrated Weld Travel Speed Sensing for Manual Welding
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Solution Overview
Problem
It is difficult to accurately measure the travel speed of a welding torch during manual welding operations due to environmental and operator-related factors, which can affect weld quality.
Innovation Solution
A helmet-integrated travel speed sensing system that includes sensors on the welding helmet to monitor parameters indicative of the torch's position and orientation relative to the workpiece, using optical, acoustic, or inertial methods to determine the torch's speed and position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If manual welding operations are performed, then operator flexibility and adaptability are improved, but measurement precision of travel speed deteriorates
Solution Approach 1:
The patent introduces an intermediary measurement system consisting of optical sensors, encoders, and tracking devices that indirectly measure travel speed by monitoring the movement of the welding torch and helmet through optical fields and positional encoding, rather than directly measuring the torch speed itself. This intermediary approach enables accurate measurement in manual welding operations.
Solution Approach 2:
The patent replaces direct mechanical measurement methods with optical and electronic sensing systems. Optical sensors, cameras, and encoders detect positional changes and calculate travel speed through computational methods, eliminating the need for direct mechanical contact or interference with the welding process.
2Manufacturing precision
If travel speed monitoring is implemented, then weld quality is improved, but device complexity increases
Solution Approach 1:
The patent integrates multiple functions into the welding helmet and sensing system, including travel speed measurement, positional tracking, operator safety monitoring, and real-time feedback provision. The helmet serves as both protective equipment and a platform for sensors, while the system simultaneously monitors multiple parameters to comprehensively assess weld quality.
Solution Approach 2:
The patent implements real-time feedback mechanisms where sensor data about travel speed and position is continuously processed and fed back to the operator through displays or alerts, and potentially to control systems that can adjust welding parameters automatically. This closed-loop feedback ensures weld quality by enabling immediate corrections.
3Manufacturing precision
If real-time monitoring is provided, then weld quality control is improved, but loss of time in data processing increases
Solution Approach 1:
The patent performs preliminary calculations and data processing by embedding computation capabilities directly in the sensing system and helmet electronics. Positional data from encoders and optical sensors is processed in real-time through onboard processors that continuously calculate travel speed and compare it against target values, eliminating the need for post-processing delays.
Solution Approach 2:
The sensing system is self-sufficient with integrated power sources, processing units, and communication interfaces that operate autonomously during welding. The system independently collects data, processes information, generates feedback, and maintains operation without requiring external computational resources, thereby minimizing time loss.
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
Provides accurate and real-time monitoring of welding torch speed, enabling improved weld quality by ensuring consistent travel speed and orientation, which can be displayed to the operator for adjustments.
Implementation Method 1
an optical sensor disposed on a welding helmet and configured to sense a first parameter indicative of a position of a welding torch relative to the welding helmet
Data Source
AI summary
A welding system includes a first sensor associated with a welding helmet and configured to sense a parameter indicative of a position of a welding torch relative to the welding helmet. The travel speed sensing system also includes a processing system communicatively coupled to the first sensor and configured to determine a position of the welding torch relative to a workpiece based on the sensed first parameter.