Welding Torch Extraction Control by Burner Distance
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Solution Overview
Problem
Existing welding and soldering processes in protective gas atmospheres face challenges in effectively extracting exhaust gases while maintaining a stable protective gas jacket, as current suction control methods do not adequately account for relevant influencing factors such as torch distance.
Innovation Solution
A device with a control system that adjusts suction power based on the distance between the torch and the welding or soldering point, using distance information from available welding parameters to ensure reliable gas extraction without disrupting the protective gas jacket.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If suction power is increased to extract exhaust gases, then extraction efficiency is improved, but the protective gas jacket becomes unstable
Solution Approach 1:
The suction device operates with variable suction power that dynamically adjusts based on the torch distance from the workpiece. When the torch is farther away, suction power increases to maintain extraction efficiency; when the torch is closer, suction power decreases to preserve protective gas jacket stability. This dynamic adjustment resolves the contradiction between extraction efficiency and protective gas stability.
Solution Approach 2:
The system changes the suction power parameter in response to changes in torch distance. By monitoring the distance between the torch and workpiece, the control device adjusts the suction power level to optimize both exhaust extraction and protective gas maintenance, thereby resolving the technical contradiction.
2Stability of the object's composition
If suction power is decreased to maintain protective gas jacket, then protective gas stability is improved, but exhaust gas extraction becomes insufficient
Solution Approach 1:
The suction device transitions from static to dynamic operation, adjusting its suction power in real-time based on torch distance. This dynamic behavior allows the system to maintain protective gas stability when the torch is close while ensuring adequate exhaust extraction when the torch is farther away.
Solution Approach 2:
The suction power parameter is varied according to the torch distance parameter. This parameter coupling enables the system to optimize the balance between protective gas jacket stability and exhaust gas extraction efficiency under different operating conditions.
3Measurement precision
If automatic control based on welding parameters is implemented, then control precision is improved, but relevant influencing factors are not adequately considered
Solution Approach 1:
The control device implements feedback control by monitoring the torch distance (a critical influencing factor) and using this information to adjust the suction power. This feedback mechanism ensures that the suction control is not only precise but also adaptive to the actual welding conditions, particularly the torch-to-workpiece distance which directly affects both exhaust generation and protective gas requirements.
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
This approach allows for automatic regulation of suction power, ensuring efficient extraction of exhaust gases while maintaining a stable protective gas environment, thereby improving welding and soldering quality and worker safety.
Implementation Method 1
a suction device for providing a suction air flow via the connection means
Data Source
Figure 1a
Figure 1b
Figure 1c
AI summary
The invention relates to a device (100, 300) for use in welding or brazing under a protective gas atmosphere with connection means (180, 380) for connecting a torch (210) with integrated extraction, with an extraction device (116, 316) for providing an extraction airflow via the connection means (180, 380) and with a control device (190, 390) for controlling the extraction device (116, 316), wherein the control device (190, 390) is configured to obtain distance information about the torch distance (LB) of a torch (210) connected to the connection means (180, 380) to the welding point (226) and to control the extraction device (116, 316) depending on the determined distance information.The invention further relates to a system (200, 400) for use in welding or brazing under a protective gas atmosphere with such a device (100, 300) and a method for controlling an extraction device (116, 316) of a device (100, 300) for use in welding or brazing under a protective gas atmosphere.