Welding Torch Two-Wire Control for Digital and Legacy Compatibility
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Solution Overview
Problem
Conventional welding torches require additional wires and internal wiring modifications to enable digital control, leading to loss of compatibility with non-customized welding machines.
Innovation Solution
Utilize two existing wires for both power supply and signal transmission, incorporating a welding torch control circuit with slots for analog and digital plug-in modules, and a voltage stabilization mechanism to adaptively adjust control modes based on module insertion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If additional wires are added to enable digital control function, then digital control capability is improved, but device complexity and loss of compatibility increase
Solution Approach 1:
The existing two-wire system is designed to perform multiple functions: power supply and digital signal transmission. The control circuit detects signal characteristics to distinguish between power-only mode and digital communication mode, enabling the same physical wires to serve different purposes based on operational context.
Solution Approach 2:
The patent combines power supply function and digital communication function into a single two-wire system. By merging these functions, the invention eliminates the need for separate communication wires, thereby reducing wiring complexity while maintaining digital control capability.
2Extent of automation
If additional wires are added to enable digital control function, then digital control capability is improved, but compatibility with standard welding machines deteriorates
Solution Approach 1:
The control circuit is designed to universally accept both traditional power supply operations and digital communication operations through the same two-wire interface, making the welding torch compatible with standard welding machines while enabling digital control functionality.
Solution Approach 2:
The control circuit automatically detects whether the connected welding machine supports digital communication by analyzing signal characteristics. Based on this detection, the circuit self-configures to operate in either digital mode or traditional power mode, eliminating the need for manual configuration or specialized wiring.
3Extent of automation
If internal wiring designs are modified to support digital control, then digital control function is achieved, but adaptability to different welding machines is reduced
Solution Approach 1:
The control circuit dynamically adjusts its operational mode based on real-time detection of welding machine characteristics. The circuit can switch between digital communication mode and traditional power supply mode, providing adaptive functionality that maintains compatibility across different welding machine types.
Solution Approach 2:
The control circuit changes its operational parameters (signal frequency, voltage levels, communication protocol) based on the detected welding machine type. This parameter adaptation allows the torch to function with various welding machines without requiring physical wiring modifications.
Data Source
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AI summary
A welding machine, a welding torch, a welding system, and a welding torch control method are provided in the present application. In the welding system, an electrical signal connection is established between the welding machine and the welding torch through wires, the welding machine utilizes the electrical signal connection to supply power to the welding torch, and recognizes the type of the welding torch according to an electrical signal received from the welding torch to obtain a welding torch type recognition result, and perform an adaptive adjustment on the specific function of the welding torch according to the welding torch type recognition result. By implementing the welding system and the welding torch control method proposed by the present application, the welding torch may have three welding torch control functions of traditional common traditional mode control, analog control and digital control without the need of arranging extra wires in the welding machine and the welding torch or improving the existing wiring design of the traditional welding torch. Moreover, the welding machine may be perfectly compatible with traditional welding torches, analog welding torches and digital welding torches.