Virtual Laser Beam Interference Verification for Teaching Operations
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Solution Overview
Problem
There is a known demand for effectively validating interference between a laser beam emitted from a laser processing machine and an object existing in a work cell, which existing technologies have not adequately addressed.
Innovation Solution
A teaching device and method that include a model data acquisition unit, an input receiving unit, and an interference detecting unit to simulate a virtual laser process operation, detect interference between a virtual laser beam and an object model, and generate an interference verification program to validate interference in a laser processing machine.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If interference detection is performed using actual laser beam parameters, then detection accuracy is improved, but the complexity of the teaching device increases
Solution Approach 1:
The patent uses a virtual laser beam model that copies the essential parameters (beam diameter, shape, propagation characteristics) of the actual laser beam to perform interference detection in a virtual environment. This allows accurate interference validation without requiring the actual laser processing machine, thereby reducing device complexity while maintaining detection accuracy.
2Adaptability or versatility
If virtual laser beam simulation is implemented, then interference validation capability is improved, but computational requirements increase
Solution Approach 1:
The patent implements partial simulation by modeling only the essential characteristics of the laser beam (diameter, shape, propagation path) rather than the complete physical process. This partial action approach provides sufficient interference validation capability while keeping computational energy consumption at acceptable levels.
3Measurement precision
If beam size parameter is used for interference detection, then detection precision is improved, but the difficulty of setting detection conditions increases
Solution Approach 1:
The patent changes the detection parameter from complex three-dimensional spatial overlap analysis to a simplified beam size parameter comparison. By detecting whether the virtual laser beam diameter exceeds a predetermined threshold at the interference location, the system achieves high detection precision while significantly reducing the difficulty of setting detection conditions.
Data Source
AI summary
A teaching device includes: a model data acquisition unit that acquires an object model; an input receiving unit that receives input of an interference detection condition for detecting interference between a virtual laser beam and the object model in a virtual laser machining operation in which the virtual laser beam is simulatively irradiated at a machining location; and an interference detection unit that detects interference occurring in the virtual laser machining operation on the basis of the received interference detection condition. The interference detection condition includes a beam size of the virtual laser beam, or an invalid region set in the object model for invalidating the interference detection.