Handheld Welding Gun Motion Sensing for Consistent Weld Control
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Solution Overview
Problem
Manual welding operations with handheld welding guns face challenges in monitoring and controlling weld parameters due to operator dependence, making it difficult to ensure consistent quality, especially in environments where sensor measurements are hindered.
Innovation Solution
A handheld welding gun equipped with a gyroscope sensor, accelerometer, and magnetometer integrated into a compact sensor unit on a control card, allowing precise monitoring of gun position, motion, and behavior before, during, and after welding, and a displacement measuring system connected to the control card for accurate parameter control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If sensor units are added to monitor weld parameters in handheld welding guns, then measurement precision and reliability improve, but device complexity increases
Solution Approach 1:
The patent combines multiple sensors (accelerometer, gyroscope, magnetometer) into a single integrated sensor unit that is mounted on the welding gun housing. This merging approach enables comprehensive monitoring of weld parameters including gun orientation, motion, and position while avoiding the complexity of multiple separate sensor systems.
Solution Approach 2:
The sensor unit serves multiple functions simultaneously: it monitors gun orientation during welding, tracks gun motion and position, detects improper use patterns, and provides data for real-time parameter adaptation. This multi-functionality reduces the need for separate monitoring systems and simplifies the overall device architecture.
2Reliability
If multiple sensors are integrated into the welding gun housing, then monitoring capability improves, but ease of operation deteriorates due to increased weight and size
Solution Approach 1:
The sensor unit is strategically mounted on the housing in a location that minimizes its impact on the operator's grip and control. The compact integration of sensors within a small housing area ensures that the additional mass is distributed optimally, reducing the effect on gun balance and maneuverability while maintaining reliable monitoring capabilities.
3Manufacturing precision
If real-time parameter monitoring and control are implemented, then manufacturing precision improves, but loss of time increases due to data processing requirements
Solution Approach 1:
The control card is pre-programmed with welding parameters and decision logic before the welding operation begins. During welding, the system simply compares real-time sensor data against pre-established criteria and executes predetermined control actions, eliminating the need for complex real-time calculations and reducing processing delays.
Solution Approach 2:
The system implements continuous feedback loops where sensor data is constantly monitored and compared against target parameters. When deviations are detected, the control card automatically adjusts welding parameters in real-time, enabling closed-loop control that maintains precision without requiring lengthy analysis periods.
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 strict control of welding parameters and behavior, ensuring consistent weld quality by detecting improper use, monitoring orientation, and adapting parameters in real-time, resulting in improved weld joint consistency and reduced operator errors.
Implementation Method 1
the sensor unit comprises a gyroscope sensor mounted within the housing
Implementation Method 2
the sensor unit comprises a gyroscope sensor mounted within the housing
Implementation Method 3
the sensor unit comprises a gyroscope sensor mounted within the housing
Implementation Method 4
an electric arc is set. Then the welding current proper is switched on and the mutually opposed faces are incipiently fused by the high-energy electric arc
Data Source
AI summary
Method for monitoring the behaviour of a welding gun and handheld welding gun for welding an element to a component comprising a sensor unit adapted to measure different parameters during the welding process, a processing system with a control card adapted to control one or more parameters of the welding process, wherein the sensor unit comprises a gyroscope sensor mounted within the housing, wherein the gyroscope sensor is arranged on the control card.