Welding Torch Wire Guide Assembly to Prevent Feed Buckling
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Solution Overview
Problem
Conventional arc welding torch devices require extensive dismantling to replace the wire core, leading to increased time and effort, especially when used with automated systems, and there is a risk of the welding wire buckling due to friction during the feed movement.
Innovation Solution
A one-piece component with an inlet opening for the welding wire that guides it from the entry point to the rear end of the wire core, acting as a kink protection means, is integrated into the arc welding torch device. This component extends from the end cap to the wire feed means, minimizing radial extent and reducing the risk of buckling, and is designed for easy replacement when worn.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If the wire core is replaced by dismantling the rear end of the torch device, then the wire core can be accessed for replacement, but the dismantling and reassembly process is time-consuming and complex
Solution Approach 1:
The torch device is divided into modular components: a reusable torch body and a replaceable wire core assembly that includes the wire core, guide element, and inlet body as integrated sub-components. This segmentation allows the wire core assembly to be replaced as a single unit without dismantling the entire torch device, significantly reducing replacement time and complexity.
Solution Approach 2:
The wire core is nested within the guide element, which is in turn nested within the inlet body. This nested structure allows all three components to be replaced together as one integrated assembly, eliminating the need to disassemble the torch device while enabling complete replacement of the wear-prone components.
2Ease of operation
If the welding wire is fed through a narrow bore in the end cap, then the wire can be guided into the torch, but the wire may deflect and kink outside the end cap
Solution Approach 1:
The inlet body with its through-hole is positioned to extend from the end cap toward the wire feed means, creating a pre-guided path for the welding wire before it enters the narrow bore. This preliminary guidance structure ensures the wire remains aligned and prevents deflection or kinking during the feed operation.
3Adaptability or versatility
If the wire core and guide element are replaced separately, then each component can be serviced independently, but the replacement process becomes more complex and time-consuming
Solution Approach 1:
The wire core, guide element, and inlet body are merged into a single integrated assembly that functions as one replaceable unit. While the components are structurally integrated for simplified replacement, they can still be serviced independently by replacing the entire assembly, achieving both ease of replacement and serviceability.
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 solution allows for a resistance-free movement of the welding wire with reduced risk of buckling, simplifies the wire core replacement process, and minimizes wear on the torch device components, thereby enhancing operational efficiency and reducing downtime.
Implementation Method 1
This process is based on the generation of heat by an electric arc between a welding electrode and the workpiece to be welded
Implementation Method 2
The heat generated causes the material(s) to be locally melted
Implementation Method 3
a shielding gas is supplied to the arc area to create a resistance-reducing ionized atmosphere between the welding electrode and the workpiece
Data Source
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AI summary
In order to ensure, in an arc welding torch device with a consumable electrode designed as welding wire, wherein the electrode is designed with a direction of movement from a rear end of the arc welding torch device to a front end of the arc welding torch device, in the area of which the electrode melts during an arc welding process, the electrode is guided in the arc welding torch device in a replaceable wire core, wherein the wire core is in turn arranged, at least in the area of the rear end of the arc welding torch, in a guide element surrounding the wire core and designed as a replaceable wear part, wherein the guide element of the wire core is provided for the common replacement of the wire core due to wear, in the area of the process-side end, the movement of the welding wire with as little resistance as possible and with the lowest possible risk,To prevent the welding wire from buckling due to the feed movement, a one-piece design of the guide element together with a component of the arc welding torch assembly is proposed, which has an entry opening for the welding wire to enter the arc welding torch assembly, and is designed to guide a consumable welding wire intended as an electrode from the entry opening to at least the rear end of the wire core.