Digital Pulse Welding Control for Multi-Process Arc Modes
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Solution Overview
Problem
Current welding machines lack the capability to integrate pulse MIG, pulse argon arc, and pulse MMA functions, requiring multiple machines to meet various functional requirements, increasing application costs and limiting efficiency.
Innovation Solution
A multi-functional digital pulse electric welding machine system that integrates MIG, TIG, and MMA welding modes with pulse capabilities, utilizing an LCD interactive platform, MCU control module, wire feeder, and inverter main circuit, enabling real-time control and feedback for improved dynamic response and welding quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple welding machines are purchased to meet various functional requirements (MIG, TIG, MMA welding), then the functional versatility is improved, but the application cost increases
Solution Approach 1:
The welding machine integrates multiple welding functions (MIG, TIG, MMA) into a single device, allowing one machine to perform the work of multiple separate machines, thereby reducing application costs while maintaining functional versatility
Solution Approach 2:
The patent combines separate welding circuit designs for MIG, TIG, and MMA welding into an integrated system that shares common components and control architecture, achieving cost-effective multi-functionality
2Speed
If traditional control systems are used in welding machines, then the device complexity is reduced, but the dynamic response speed to welding process feedback decreases
Solution Approach 1:
The patent replaces traditional mechanical or analog control systems with digital control using an MCU (Microcontroller Unit), enabling high-speed computation and quick adjustment of welding parameters in response to dynamic feedback, thereby improving response speed despite increased digital control complexity
3Productivity
If pulse welding mode is added to MIG, TIG, and MMA functions, then the welding quality and efficiency are improved, but the device complexity increases
Solution Approach 1:
The patent implements pulse welding mode that uses periodic on-off cycles of the welding current, allowing precise control of heat input and weld metal deposition, thereby improving welding quality and efficiency through controlled pulsing rather than continuous current
Solution Approach 2:
The integrated control system provides pulse welding capability across all three welding modes (MIG, TIG, MMA) through a unified digital control architecture, achieving enhanced productivity without proportionally increasing device 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 provides a cost-effective solution by integrating multiple welding functions, enhancing welding efficiency and quality through precise control of welding processes, including current and voltage adjustments, and real-time feedback, thus adapting to various welding scenarios.
Implementation Method 1
the bridge rectifier circuit rectifies received commercial power, converts an alternating current into a direct current
Implementation Method 2
the filter circuit filters the direct current
Implementation Method 3
the inverter circuit inverts the filtered direct current into an alternating current
Implementation Method 4
the half-wave rectifier circuit rectifies the alternating current, outputs a direct current
Implementation Method 5
a wire feed motor of the wire feeder feeds back an electromotive force voltage to the MCU control module
Implementation Method 6
the protection circuit collects current and voltage signals of the electric welding machine, and transmits the collected signals to the MCU control module
Data Source
AI summary
Disclosed is a multi-functional digital pulse electric welding machine system, which comprises an LCD interactive platform, an MCU control module, a wire feeder and an inverter main circuit, the LCD interactive platform is connected to the MCU control module, and is a man-machine interactive operation platform, an input end of the inverter main circuit is connected to a commercial power input and an output end of the inverter main circuit outputs a direct current to provide for a welding torch of an electric welding machine, the MCU control module is connected to the inverter main circuit and the wire feeder, and the MCU control module controls the inverter main circuit and the wire feeder to work according to a working mode selected by the LCD interactive platform.