Laser Machining Head Imaging for Faster Teaching Alignment
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Solution Overview
Problem
The existing remote laser machining systems require significant time and effort for the teaching operation, as operators must manually adjust the laser beam direction while visually confirming the irradiation position, and the use of a guide laser beam has limitations due to its short lifespan and the need for continuous emission.
Innovation Solution
A machining system that includes a laser machining head with an imaging device and a display, allowing the capture and virtual display of the laser-beam irradiation position on the workpiece, enabling operators to perform the teaching operation more efficiently without relying on a continuous guide laser beam.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a guide laser beam is used to visually confirm the irradiation position during teaching operation, then the operator can confirm the laser-beam irradiation position, but the teaching operation requires significant time and effort
Solution Approach 1:
The imaging device captures an image of the workpiece and the control device displays it on a screen, creating a visual copy of the irradiation position. This allows the operator to confirm the laser-beam irradiation position through the displayed image without needing to continuously emit a guide laser beam, thereby reducing teaching operation time while maintaining position confirmation accuracy
Solution Approach 2:
The imaging device and display screen serve as an intermediary between the laser beam and the operator's visual confirmation. Instead of directly observing the laser beam on the workpiece, the operator views the captured image on the display, which mediates the confirmation process and eliminates the need for continuous guide laser emission
2Measurement precision
If a guide laser beam is continuously emitted to facilitate teaching operation, then the irradiation position can be confirmed, but the light source has a limited life time
Solution Approach 1:
Instead of continuously emitting the guide laser beam, the system captures an image using the imaging device and displays it on the screen. This copying approach allows position confirmation without continuous laser emission, preserving the guide laser light source and extending its operational lifetime
Solution Approach 2:
The imaging device captures images at specific moments during the teaching operation rather than requiring continuous guide laser emission. This periodic imaging approach reduces the duration the guide laser needs to be active, thereby extending its lifetime while still providing sufficient visual confirmation for the operator
Data Source
AI summary
A machining system includes a laser irradiation device, a camera that captures an image of a workpiece, and a display that displays the image captured by the camera. The machining system includes a robot control device that controls the camera and the display. The camera captures the image of the workpiece before machining. The robot control device calculates a laser-beam irradiation position on the workpiece and virtually displays the laser-beam irradiation position on the display so as to overlap the workpiece image captured by the camera.