Welding Wire Straightening for Long Stick-Out Accuracy
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Solution Overview
Problem
Existing welding systems face challenges in suppressing target deviations of welded portions when the welding wire projecting length is increased, due to the curling tendency of the welding wire.
Innovation Solution
A welding system that includes a tip with a forced power supply mechanism to bias and power the welding wire, a torch with the tip at the distal end, an automatic machine to hold the torch, and a welding wire straightener attached to the automatic machine to correct the bending tendency of the welding wire.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the welding wire projecting length is increased, then the welding system can accommodate longer wire feeds, but the target deviation of the welded portion increases due to curling tendency
Solution Approach 1:
The welding wire straightener applies a preliminary straightening force to the welding wire before it reaches the welding tip, counteracting the curling tendency that would otherwise cause target deviation. This preventive action ensures the wire remains straight throughout its projected length, allowing longer wire feeds without compromising welding precision.
Solution Approach 2:
The welding wire straightener acts as an intermediary device between the wire feed mechanism and the welding tip. It corrects the wire's curvature in this intermediate position, ensuring that by the time the wire reaches the tip, it is properly aligned and straight, thus eliminating target deviation even with increased projecting length.
2Use of energy by moving object
If the welding wire projecting length is increased, then more Joule heat is applied to the welding wire, but the curling tendency causes positional deviation
Solution Approach 1:
The straightener preemptively counteracts the curling effect that results from Joule heating by applying a straightening force before the wire completes its feed path. This ensures that even as the wire accumulates heat and develops curling tendency, its position remains controlled and deviation is prevented.
3Manufacturing precision
If a welding wire straightener is added to correct bending tendency, then target deviation is suppressed, but device complexity increases
Solution Approach 1:
The welding wire straightener serves as a dedicated intermediary component that specifically addresses the wire alignment problem. By placing this specialized device in the wire path, the system achieves precise target positioning without requiring complex control systems or modifications to the core welding mechanism, thus managing complexity while improving precision.
Solution Approach 2:
The straightener is designed to automatically correct the wire's bending tendency through its mechanical structure, without requiring external control systems, sensors, or complex actuation mechanisms. This self-service capability achieves target deviation suppression through passive mechanical action, minimizing the increase in overall system complexity.
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 effectively suppresses target deviations of the welded portion even with increased welding wire projecting lengths, by maintaining a straighter welding wire path and reducing positional errors.
Implementation Method 1
a welding wire straightener attached to the automatic machine, the welding wire straightener correcting a bending tendency of the welding wire
Implementation Method 2
a tip that biases a welding wire and has a forced power supply mechanism for supplying power to the welding wire at a distal end
Data Source
AI summary
A welding system includes a tip that biases a welding wire and has a forced power supply mechanism for supplying power to the welding wire at a distal end, a torch including the tip at a distal end, the torch supplying the welding wire toward a welded portion, an automatic machine that holds the torch, and a welding wire straightener attached to the automatic machine, the welding wire straightener correcting a bending tendency of the welding wire.