Ring Gear Welding System for Pipe Joint Control
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Solution Overview
Problem
Conventional pipe welding methods at sea face challenges in ensuring consistent weld quality due to the need for precise control of the welding arc path, which is often manual and prone to errors, especially under high tension conditions in pipeline laying.
Innovation Solution
An automated welding system featuring a traveling base carriage, ring gear assembly, and weld head assemblies with position sensors and motorized positioning systems to accurately guide the welding torch along the pipe joint, enabling precise orbital paths and improved control over the welding process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If manual arc guidance is used in conventional welding methods, then the system complexity is reduced, but the manufacturing precision of the weld path deteriorates
Solution Approach 1:
The patent replaces manual mechanical arc guidance with an automated system using position sensors, motorized positioning systems, and programmable controllers to precisely control the welding torch path, eliminating human error while maintaining manageable system complexity through modular design
Solution Approach 2:
The welding system incorporates self-positioning capabilities through position sensors that automatically detect and track the pipe joint geometry, enabling the system to self-correct and maintain precise weld paths without continuous manual intervention
2Manufacturing precision
If automated welding systems with precise control are implemented, then the manufacturing precision of weld joints is improved, but the device complexity increases
Solution Approach 1:
The welding system is divided into modular functional components including position sensors, motorized positioning systems, weld head assemblies, and control systems, allowing for easier maintenance, calibration, and reduced overall system complexity through independent module optimization
Solution Approach 2:
The patent introduces intermediary elements such as position sensors and motorized positioning mechanisms that act as mediators between the control system and the welding torch, enabling precise control while simplifying the interface between human operators and the complex automated system
3Productivity
If welding speed is increased to improve productivity, then the productivity increases, but the manufacturing precision of weld joints may deteriorate
Solution Approach 1:
The automated welding system enables continuous welding operations at high speeds while maintaining consistent quality through uninterrupted motorized torch positioning and continuous arc control, eliminating the start-stop nature of manual welding and ensuring uniform weld properties throughout the joint
Solution Approach 2:
The system incorporates position sensors and control systems that provide real-time feedback on torch position and weld parameters, automatically adjusting welding speed and parameters to maintain consistent weld quality even at increased productivity rates
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
Enhances weld quality and efficiency by reducing manual intervention, allowing for faster and more consistent welding of pipe joints under high tension conditions, thereby increasing operational speed and reducing the risk of equipment damage or injury.
Implementation Method 1
an arc is directed into the groove
Data Source
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AI summary
A welding system having a traveling base carriage, a carriage positioning mechanism engaging the base carriage; and a ring gear assembly mounted on the base carriage. The ring gear assembly will include: (i) two half ring sections, each having at least one gear track; (ii) a ring gear mount attaching each of the half ring sections to the base carriage, where the ring gear mounts allow the half ring sections to separate and guide the half ring sections into mating engagement. The system further includes at least one weld head assembly mounted on the ring gear assembly. The weld head assembly includes: i) a welding torch; ii) a torch positioner, and iii) a position sensor. A system controller is programmed to control at least the carriage positioning mechanism and the weld head assembly in order to perform the steps of: (i) setting a velocity of the base carriage to approximate the pipe joint's lateral movement in order to maintain the position of the weld head assembly approximately at the pipe joint; and (ii) adjusting a path of the welding torch to accommodate a geometry of the pipe joint as detected by the position sensor.