Welding Tool Orientation Monitoring With Fast Tip Calibration
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Solution Overview
Problem
Conventional welding technique monitoring systems struggle to accurately assess and provide feedback on welding technique quality, particularly for less experienced operators, as they often require complex calibration and additional sensors, which can be time-consuming and inconvenient.
Innovation Solution
A tool-based welding technique monitoring system that uses a sensor module attached to the welding tool to track its orientation and provide real-time feedback on parameters like work angle, travel angle, and travel speed, with minimal calibration requirements, utilizing inertial measurement units and gravity data to determine joint characteristic vectors and welding technique parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional welding technique monitoring systems are used, then welding technique quality can be assessed, but complex calibration and additional sensors are required which makes the system time-consuming and inconvenient to operate
Solution Approach 1:
The patent combines multiple sensor types (accelerometer, gyroscope, magnetometer) into a single integrated sensor module that attaches to the welding tool handle. This merging eliminates the need for multiple separate sensors and simplifies calibration by providing a unified reference frame for all measurements, directly resolving the contradiction between measurement precision and ease of operation.
Solution Approach 2:
The system performs automatic calibration by detecting the tool's orientation relative to gravity and magnetic north, and automatically determining joint characteristic vectors without requiring manual input from the operator. This self-calibrating capability eliminates time-consuming manual setup while maintaining accurate welding technique assessment.
2Measurement precision
If conventional welding technique monitoring systems are used, then welding technique quality can be assessed, but additional sensors and complex setup are needed which reduces productivity
Solution Approach 1:
The sensor module performs automatic calibration and establishes reference frames before welding begins. By completing all necessary setup and calibration procedures automatically and in advance, the system eliminates time losses during the welding process itself, thereby maintaining measurement precision while improving overall productivity.
Solution Approach 2:
The patent replaces manual calibration procedures and mechanical sensor setup with automated electronic calibration using inertial measurement units and gravity reference. This substitution eliminates time-consuming manual operations while maintaining accurate welding technique monitoring, thus improving productivity without sacrificing measurement precision.
3Measurement precision
If tool tip position calibration is implemented, then welding technique parameters can be accurately determined, but calibration time is required which may reduce operational speed
Solution Approach 1:
The system automatically determines tool tip position and joint characteristic vectors by processing sensor data without requiring manual measurement or operator input. The calibration process occurs automatically in the background, eliminating the need for time-consuming manual procedures while maintaining high measurement precision for tool tip position and welding parameters.
Solution Approach 2:
The patent implements a streamlined calibration process that quickly establishes reference frames and determines joint characteristics by leveraging the sensor module's immediate ability to detect gravity and magnetic orientation. This rapid calibration approach minimizes the time lost during setup while ensuring accurate tool tip position determination throughout the welding process.
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
The system offers an inexpensive, portable, and user-friendly solution for monitoring welding techniques, providing immediate feedback with minimal calibration, enhancing welding quality without the need for additional sensors, thus improving the efficiency and accuracy of the welding process.
Implementation Method 1
tracking an orientation of the welding-type tool using sensor data of a sensor module attached to, or integrated with, a welding-type tool
Implementation Method 2
utilizing inertial measurement units and gravity data to determine joint characteristic vectors and welding technique parameters
Data Source
AI summary
Described herein are examples of tool based welding technique monitoring systems that provide an inexpensive, intuitive, and relatively robust way of tracking an orientation of a welding-type tool, and providing welding technique feedback based on the orientation. The system requires no sensors apart from a simple and/or relatively inexpensive sensor module that can travel with the welding-type tool, which makes the system highly portable. The system can also provide some feedback with minimal calibration, which can be valuable in situations where an operator forgets, or is unwilling, to take the time to fully calibrate the system. Additionally, full calibration of the system can be accomplished with a fast, simple, intuitive calibration technique.