Orbital Welding Head Orientation Sensing for Automatic Calibration
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Solution Overview
Problem
Orbital welding devices of closed design face challenges in user handling, requiring manual calibration and experiencing failures due to inadequate maintenance, leading to inefficiencies and potential errors in the welding process.
Innovation Solution
An orbital welding device with a position sensor arranged relative to the pipe holder and welding electrode holder, allowing for the calculation of orientation values based on gravitational orientation, which is used to control the welding process, and includes additional electronics for monitoring and storing calibration data to simplify setup and maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the position sensor is fixed on the welding electrode holder, then the orientation can be directly measured, but the sensor becomes subject to centrifugal forces and positional shifts during rotation
Solution Approach 1:
The system separates the position sensor from the rotating welding electrode holder and places it on the stationary pipe holder. The measurement function is segmented between the stationary sensor and the rotating electrode holder, with the control unit integrating the positional data to calculate real-time orientation angles despite the rotational movement.
2Ease of operation
If manual calibration is required for each welding operation, then the device remains simple in design, but user convenience and efficiency deteriorate
Solution Approach 1:
The system performs automatic calibration by utilizing the position sensor data and control unit calculations to self-determine the correct orientation angles without requiring manual intervention. The control unit automatically adjusts and stores calibration parameters, enabling the device to calibrate itself for each welding operation.
Solution Approach 2:
The position sensor continuously provides feedback on the welding electrode holder's position, which the control unit uses to calculate and adjust orientation angles in real-time. This feedback mechanism enables automatic calibration and compensation for positional variations during operation.
3Reliability
If maintenance intervals are not monitored, then the device structure remains simple, but unexpected failures increase
Solution Approach 1:
The system incorporates sensors and control units that continuously monitor operational parameters and provide feedback on the state of welding components. This feedback enables the system to track usage patterns and predict when maintenance is needed, allowing for proactive scheduling of maintenance intervals.
Solution Approach 2:
The system performs preliminary monitoring and assessment of component conditions before actual failure occurs. By tracking operational data and predicting maintenance needs in advance, the system enables users to schedule maintenance proactively, preventing unexpected failures.
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
This solution enhances user convenience by reducing calibration needs, improving the accuracy of the welding process, and enabling better maintenance planning through automated orientation control and stored load values, thus minimizing manual errors and extending device lifespan.
Implementation Method 1
the position value represents an orientation of the pipe holder with respect to the force of gravity
Data Source
Figure 1
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AI summary
Orbital welding device (1), wherein the orbital welding device (1) comprises a welding power source (10) in a welding power source housing (11) and a base controller (12) therein or thereon, and an orbital welding head (20) separate from the welding power source housing (11) and connected to the welding power source (10) by means of a cable (2), wherein the orbital welding head (20) comprises a pipe support (21) and a welding electrode holder (22) rotatably mounted relative to the pipe support (21) for holding the welding electrode (23), wherein the orbital welding device (1) comprises a motor (31) which is configured to drive the welding electrode holder (22) and thus rotate it relative to the pipe support (21), wherein the orbital welding head (20) comprises a chamber (50) for shielding gas which is configured to surround a welding electrode (23) of the orbital welding head (20) during a welding process and to the outside in To conclude the essential points,wherein the orbital welding head (20) has an electrical circuit (60) wherein the electrical circuit (60) is connected: - to a position sensor (41) which the orbital welding head (20) has in this case, wherein the position sensor (41) is configured to generate a position value (41.1); and/or - to a storage device (61) which the orbital welding head (20) has in this case, wherein the electrical circuit (60) is configured to store one or more load values (61.1) and/or one or more calibration values (61.2) in the storage device (61).