Laser Scanner Control Point Correction Across Multiple Stop Positions
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Solution Overview
Problem
Conventional laser processing systems face challenges in accurately correcting control points and tool-center points due to positional errors between programmed and actual paths, requiring teaching jigs and additional guide lasers, which are inefficient.
Innovation Solution
A laser processing system with a scanner and a moving device that stops at multiple positions to irradiate a preset control point with a laser beam, allowing for easy correction of control points without the need for teaching jigs or additional guide lasers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If teaching jigs and additional guide lasers are used to correct control points, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent extracts and removes the teaching jig and additional guide laser from the system. Instead of using these external辅助设备, the system utilizes the scanner's own laser beam to perform control point correction by scanning the workpiece surface and detecting the actual position of the control point, thereby simplifying the device structure while maintaining correction accuracy
Solution Approach 2:
The scanner performs self-correction of control points by using its own laser beam to scan the workpiece and detect positional deviations. The system automatically compares the detected position with the programmed position and generates correction data, eliminating the need for external teaching jigs or guide lasers
2Measurement precision
If teaching jigs are attached to the robot and additional guide lasers are installed on the scanner, then control point correction capability is improved, but ease of operation deteriorates
Solution Approach 1:
The patent removes the teaching jig attachment process and additional guide laser installation from the operation流程. The scanner directly scans the workpiece surface using its existing laser beam, automatically detects control point positions, and completes correction without requiring operators to attach or install additional components
Solution Approach 2:
The system performs automatic control point correction through the scanner's own scanning and detection capabilities. The operator only needs to execute the correction function, and the system automatically completes the entire correction process including position detection, data processing, and parameter adjustment, significantly improving ease of operation
3Manufacturing precision
If the scanner is stopped at multiple positions to irradiate a preset control point, then manufacturing precision is improved, but loss of time increases
Solution Approach 1:
The patent implements continuous scanning correction where the scanner moves continuously along the workpiece surface while performing position detection. Instead of stopping at multiple discrete positions, the scanner maintains continuous motion and collects position data along the scanning path, thereby maintaining manufacturing precision while reducing the time loss associated with repeated stopping and starting
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 efficient correction of control points, improving the accuracy of laser processing by allowing the scanner to irradiate a preset control point at multiple positions, thereby simplifying the correction process and enhancing positional alignment.
Implementation Method 1
a scanner capable of scanning a workpiece with a laser beam
Data Source
AI summary
Provided is a laser processing system with which correction of a control point can be carried out easily. This laser processing system is provided with a scanner capable of scanning a workpiece with laser light, a moving device for moving the scanner relative to the workpiece, and a scanner control device for controlling the scanner, wherein the scanner control device has an irradiation control unit for controlling the scanner such that the same preset control point on the workpiece is irradiated with the laser light when the scanner has been stopped at a plurality of positions by the moving device.