Dynamic Welding Cable Connector for Sliding Electrical Contact
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Solution Overview
Problem
Conventional welding cables experience stress and strain due to fixed connections at both ends, leading to premature failure and requiring unplanned downtime for replacement.
Innovation Solution
A dynamic connector that allows sliding and rotation of the welding cable relative to the wire feeder, maintaining electrical contact and reducing strain, while enabling axial movement of the welding cable during torch movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If fixed connections are used at both ends of the welding cable, then electrical connection stability is improved, but cable stress and strain increase leading to premature failure
Solution Approach 1:
The patent introduces a dynamic connector with a sliding mechanism that allows the welding cable to move axially relative to the wire feeder. The connector includes a cable clamp that can slide along the cable axis within a constrained range, and a rotation joint that allows rotational movement. This dynamic structure absorbs stress and strain from cable movement while maintaining electrical connection, resolving the contradiction between connection stability and cable service life.
2Reliability
If the welding cable is fixed rigidly, then electrical contact is maintained, but the cable cannot accommodate movement during torch operation
Solution Approach 1:
The dynamic connector incorporates sliding and rotating components that enable the cable to accommodate axial movement and rotation during torch operation. The cable clamp slides along the cable axis within a constrained range, and the rotation joint allows rotational movement, maintaining electrical contact while providing the necessary adaptability.
Solution Approach 2:
The dynamic connector acts as an intermediary between the rigid wire feeder and the flexible welding cable. It provides a transition zone that allows movement and rotation while maintaining electrical connection, mediating between the fixed connection requirement and the movement capability requirement.
3Device complexity
If conventional fixed connectors are used, then assembly is simple, but cable replacement requires unplanned downtime and disassembly
Solution Approach 1:
The dynamic connector is designed as a modular assembly with distinct components: a connector body, a cable clamp, and a rotation joint. The cable clamp can be independently adjusted and locked, allowing for easy cable replacement without requiring complete disassembly of the connector. This segmented design maintains structural simplicity while enabling quick maintenance.
Solution Approach 2:
The cable clamp includes a locking mechanism that can be quickly engaged and disengaged. The connector is pre-configured with adjustment slots and locking features that allow for rapid cable replacement during planned maintenance, reducing downtime while maintaining connection reliability.
Data Source
AI summary
An example dynamic connector for a welding torch is provided. An example dynamic connector for a welding torch includes a conductive adapter configured to connect to a wire feeder on a first end and comprising a bore on a second end, a pin positioned within the bore and configured to couple the conductive adapter to a welding cable, wherein the pin is configured to travel with respect to the bore in response to force on the welding cable, one or more electrical contact rings configured to maintain an electrical connection between the conductive adapter and the pin while the pin is within the bore, and one or more bearings configured to support the pin while the pin is within the bore.