Rotatable Torch Fastening for Wire Path Stability
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Solution Overview
Problem
Existing welding torches with fixed and rigid fastening of the protective hose and wire core require high force for movement, leading to handling burdens for welders and potential deviations in the welding wire path during transfer.
Innovation Solution
A welding torch design where the protective hose and wire core are fastened rotatably and pivotably to the torch housing, allowing for accurate guidance of the welding wire and reduced handling burdens, with a clamping mechanism for replaceable wire cores and a transparent wire inlet nozzle for precise placement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the protective hose and wire core are fastened rigidly to the torch housing, then the wire core position is stable, but high force is required to move the welding torch and handle the hose package
Solution Approach 1:
The patent applies a dynamic fastening solution by introducing a swivel joint that allows the wire core to rotate and pivot relative to the torch housing. This dynamic connection maintains wire core position stability during welding while enabling easy movement of the welding torch and hose package without requiring high force, thus resolving the contradiction between stability and ease of operation.
2Ease of operation
If the wire core is not fixed, then the welding torch is easier to handle, but the wire core position changes and the welding wire may choose a different path during transfer
Solution Approach 1:
The swivel joint provides a controlled dynamic connection that allows the wire core to move with the torch while maintaining its positional relationship. The rotational and pivotal movements are constrained within defined axes, ensuring the welding wire follows the correct path during transfer while still allowing easy torch handling.
Solution Approach 2:
The swivel joint acts as an intermediary mechanism between the fixed torch housing and the movable wire core. It mediates the movement by allowing controlled rotation and pivoting, ensuring that the wire core position remains accurate relative to the torch while accommodating the ease of handling requirements.
3Strength
If the protective hose is designed to be stable and rigid, then the structure is durable, but the required force to overcome the rigidity of the supply lines increases the burden on the welder
Solution Approach 1:
The swivel joint introduces dynamic movement capability to the otherwise rigid protective hose assembly. The hose maintains its structural durability and stability while the swivel joint allows it to rotate and pivot during torch movement, significantly reducing the force required to handle the hose package and reducing the burden on the welder.
Data Source
AI summary
A welding torch, in particular a handheld welding torch, for a melting welding wire, which is guided in a wire core arranged within a protective hose, fastens the protective hose and the welding core within a torch housing of the welding torch independently from one another. For minimizing stresses on the welding torch by the hose package, the protective hose is fastened rotatably and pivotably and the wire core is fastened rotatably to the torch housing.