Laser Irradiation Apparatus With Fluid-Ejector Positioning
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Solution Overview
Problem
Existing laser irradiation apparatuses face challenges in maintaining a consistent distance with processing objects during laser processes, particularly when dealing with inner surfaces, due to interference risks and focus tolerance issues caused by vibrations and rotations.
Innovation Solution
A laser irradiation apparatus featuring a laser light transmission mechanism, a condensing mechanism, a pipe-state casing with a fluid supply and guide mechanism, and a positioning mechanism that utilizes an ejector effect to maintain a constant distance from the processing object by generating a pressure difference and attracting the casing to the object.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the clearance between the irradiation apparatus and the processing object is set small, then the laser process can be performed effectively, but there is a risk that the irradiation apparatus will interfere with the inner surface of the processing object
Solution Approach 1:
The patent employs a rotation driving device that rotates the irradiation apparatus dynamically during the laser process. This rotational movement allows the apparatus to maintain a small clearance for effective laser processing while preventing static interference with the inner surface. The dynamic positioning ensures consistent focal distance without contact interference.
2Object-affected harmful factors
If the clearance between the irradiation apparatus and the processing object is set large, then interference with the inner surface is avoided, but the process cannot be performed because the processing object is out of the focus tolerance range
Solution Approach 1:
By implementing rotational movement of the irradiation apparatus, the system maintains a larger average clearance that avoids interference while the continuous rotation ensures the processing object remains within the focus tolerance range. The dynamic motion compensates for the increased clearance, keeping the laser beam consistently focused on the processing surface.
3Adaptability or versatility
If the irradiation apparatus is rotated spirally to process the inner surface of a pipe, then laser processing is enabled, but consistent distance maintenance becomes difficult due to vibrations and rotations
Solution Approach 1:
The patent incorporates a positioning mechanism that provides feedback control to maintain a constant distance between the irradiation apparatus and the processing object. This positioning system compensates for vibrations and rotational variations, ensuring consistent focal distance throughout the spiral rotation process. The feedback mechanism adjusts the apparatus position in real-time to counteract any distance deviations caused by rotation and vibration.
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
Enables stable and consistent laser processing on inner surfaces by maintaining a constant distance, reducing interference and ensuring accurate focus, even under varying conditions such as vibrations and rotations.
Implementation Method 1
a fluid supply mechanism supplying a fluid from a fluid supply source into the casing and making it emit from the opening part; a positioning mechanism provided at the casing and keeping a distance from the condensing mechanism to the processing object constant by being brought into contact with the processing object
Implementation Method 2
a laser light transmission mechanism guiding laser light from a laser light source and emitting it from a laser light emission part
Implementation Method 3
a condensing mechanism condensing the laser light emitted from the laser light emission part
Data Source
Figure 1A~1B
Figure 2~3
Figure 4~5
AI summary
A laser irradiation apparatus of the embodiment includes: a laser light transmission mechanism (14) to guide laser light from a laser light source and emit the laser light from a laser light emission part; a condensing mechanism (11) to condense the laser light; a pipe state casing (12) to house and hold the condensing mechanism inside thereof and have an opening part to irradiate the laser light; a fluid supply mechanism (13) to supply a fluid into the casing to emit the fluid from the opening part; a positioning mechanism (19) provided at the casing to keep a distance from the condensing mechanism to the processing object constant by being brought into contact with the processing object; and a fluid guide mechanism (17) to guide the fluid emitted from the opening part to flow between the casing and the processing object along an axial direction of the casing.