Removable Side Nozzle Layout for Mountain and Valley Laser Welding
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Solution Overview
Problem
The existing laser welding machines require complex and time-consuming nozzle replacement processes when switching between welding mountain and valley portions on a product, as different nozzles are needed for each location, complicating the welding process.
Innovation Solution
A side nozzle configuration for laser welding machines that includes a main nozzle and a removable sub-nozzle, allowing the same nozzle to be used for both mountain and valley portions by integrating or separating the sub-nozzle, enabling efficient shielding gas delivery without the need for nozzle replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If different nozzles (side nozzle and narrow nozzle) are used for welding mountain and valley portions respectively, then welding quality for each specific position is improved, but device complexity and operation time increase due to nozzle replacement requirements
Solution Approach 1:
The patent applies universality by designing a single side nozzle that can perform both mountain portion welding and valley portion welding functions. The nozzle includes a main blowing hole for general shielding gas delivery and an adjustable auxiliary blowing hole that can be positioned to deliver shielding gas at different angles and directions, allowing the same nozzle to effectively shield both mountain and valley weld positions without requiring multiple specialized nozzles.
Solution Approach 2:
The patent applies dynamics through the adjustable auxiliary blowing hole mechanism. The auxiliary blowing hole's position and orientation can be adjusted during operation to adapt to different welding positions (mountain or valley portions). This adjustability allows the nozzle to dynamically change its shielding gas delivery pattern to match the specific requirements of different weld geometries, maintaining welding quality while avoiding nozzle replacement.
2Manufacturing precision
If nozzle replacement is performed to switch between mountain and valley portion welding, then welding quality is maintained, but productivity decreases due to time-consuming replacement and positioning operations
Solution Approach 1:
The single side nozzle with adjustable auxiliary blowing hole eliminates the need to switch between multiple nozzles, allowing the same nozzle to handle both mountain and valley portion welding. This multi-functionality removes the time-consuming nozzle replacement and repositioning steps from the workflow, significantly improving productivity while maintaining welding quality through appropriate shielding gas delivery configuration.
Solution Approach 2:
The nozzle is pre-configured with both a main blowing hole and an adjustable auxiliary blowing hole in positions that can accommodate both mountain and valley portion welding requirements. By having the auxiliary blowing hole already integrated and adjustable, the system prepares in advance for different welding scenarios, eliminating the need for time-consuming nozzle changes and positioning adjustments during operation.
3Productivity
If a single side nozzle is used for both mountain and valley portions, then productivity improves by eliminating nozzle replacement, but shielding quality may deteriorate without proper configuration
Solution Approach 1:
The adjustable auxiliary blowing hole provides dynamic control over shielding gas delivery. By adjusting the position and orientation of the auxiliary blowing hole, the nozzle can optimize shielding gas flow patterns for different weld geometries (mountain or valley portions), ensuring adequate shielding quality is maintained while using a single nozzle configuration for both applications.
Solution Approach 2:
The nozzle design incorporates local quality by providing different blowing holes (main and auxiliary) that can be independently configured. The auxiliary blowing hole can be adjusted to provide localized shielding gas delivery tailored to specific weld position requirements, ensuring that shielding quality is optimized for each local welding condition while using a single integrated nozzle structure.
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 configuration simplifies the welding process by allowing the same side nozzle to be used for both mountain and valley portions, improving accessibility and shielding quality while reducing the complexity and time required for nozzle adjustments.
Implementation Method 1
a gas blow nozzle attached to a side of the head attachment and configured to blow shielding gas to the weld position
Implementation Method 2
a laser beam emitted from the welding head for irradiation to a weld position passes
Implementation Method 3
When a laser welding machine irradiates a weld position on a sheet metal with a laser beam to weld the weld position
Data Source
AI summary
A head attachment is attached to a welding head of a laser welding machine. The head attachment includes an opening through which a laser beam emitted from the welding head for irradiation to a weld position passes. A gas blow nozzle is attached to the side of the head attachment and blows shielding gas to the weld position. The gas blow nozzle includes a main nozzle that is disposed closer to the head attachment and is supplied with the shielding gas by a first gas pipe, and a sub-nozzle that is disposed so as to be adjacent to the main nozzle and farther away from the head attachment than the main nozzle and is supplied with the shielding gas by a second gas pipe. The sub-nozzle is removable from the main nozzle.