Welding Torch Cooling Structure With External Coolant Channels
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Solution Overview
Problem
Existing welding torches with complex structures and internal cooling cavities are costly and lack versatility, leading to inefficiencies in cooling and increased wear due to high temperatures during welding.
Innovation Solution
A welding torch design featuring an external cylinder with supply and recovery channels for coolant circulation, allowing for efficient cooling of the tip body and nozzle with a simple and low-cost configuration, and enabling special processing of the tip body for enhanced versatility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a water-cooling mechanism is provided inside the tip body and nozzle, then cooling efficiency is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The cooling function is extracted from the tip body and relocated to an external cooling device. The tip body is simplified to only contain cooling water inlet and outlet holes, while the complex cooling channels are moved to a separate cooling device that wraps around the tip body, thereby reducing structural complexity while maintaining cooling efficiency
Solution Approach 2:
The cooling system is segmented into two independent parts: the tip body with simple inlet/outlet holes and the external cooling device with complex cooling channels. This segmentation allows each component to be optimized independently and simplifies manufacturing
2Temperature
If internal cooling cavities are provided in the tip body, then cooling performance is improved, but manufacturing versatility deteriorates
Solution Approach 1:
The complex cooling cavity structure is extracted from the tip body and placed in an external cooling device. This allows the tip body to maintain its structural simplicity and manufacturing versatility, while the external device provides the necessary cooling function
Solution Approach 2:
The external cooling device serves as a universal cooling solution that can be applied to various tip body designs. The modular design allows the same cooling device to accommodate different tip body configurations, enhancing manufacturing versatility
3Temperature
If complex internal structures are used for cooling, then cooling efficiency is improved, but manufacturing cost increases
Solution Approach 1:
The complex cooling structure is extracted from the tip body and placed in a separate external cooling device. This simplifies tip body manufacturing while allowing the cooling device to be optimized for its specific function, reducing overall manufacturing cost
Solution Approach 2:
The system is segmented into simple tip body components and a separate cooling device. The tip body can be manufactured using simple drilling operations for inlet/outlet holes, while the cooling device can be manufactured with optimized cooling channels, reducing total manufacturing cost
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 design provides effective cooling of the welding torch components, reducing wear and maintenance costs while allowing for specialized tip body structures, thereby improving the overall efficiency and versatility of the welding process.
Implementation Method 1
The supply channel supplies a coolant between the inner barrel cylinder and the outer barrel cylinder
Implementation Method 2
a coolant is circulated to the distal end of the welding torch in the axial direction
Data Source
AI summary
A welding torch includes a torch barrel to which a tip body is attached, and an external cylinder. The torch barrel has outer and inner barrel cylinders. An outer peripheral surface of the inner barrel cylinder is provided with coolant supply and recovery channels. The inner barrel cylinder has an inner-cylinder exposure section. A base end of an outer peripheral surface of the inner-cylinder exposure section is provided with supply and recovery openings. An axial distal end of the inner-cylinder exposure section is provided with a connection section that is connected to the tip body such that the tip body covers an outer periphery of the inner-cylinder exposure section. At least the connection section and the supply and recovery openings are disposed within the external cylinder. A seal section hermetically seals between the external cylinder and the tip body and between the external cylinder and the outer barrel cylinder.