Laser Engraver Device Position Calibration via Optical Marking
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Solution Overview
Problem
Current methods for adjusting the relative position of devices in a laser engraver, such as the laser outputting device and image sensing device, are cumbersome and lack precision due to assembly errors and operational shakes, leading to inaccurate carving results.
Innovation Solution
A method where the outputting device forms a marked point on a non-working piece, and the image sensing device is moved to this point to record the precise distance between the two devices, allowing for accurate calibration before use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual adjustment method using printer base point is used, then adjustment can be performed, but the process is complicated and accuracy is insufficient
Solution Approach 1:
The patent uses an image sensing device to capture an image of the marked point and creates a digital copy of the point's coordinates. This digital image data is then processed by the control unit to calculate the actual position, replacing the need for manual measurement and compensation methods while achieving higher precision in determining the relative position between the laser outputting device and the workpiece.
2Manufacturing precision
If assembly errors and operational shakes occur, then devices can be connected to same frame, but position accuracy deteriorates
Solution Approach 1:
The patent implements a feedback mechanism where the image sensing device continuously monitors the actual position of the marked point, and the control unit uses this feedback information to calculate and determine the precise relative position between the laser outputting device and the workpiece. This closed-loop approach compensates for assembly errors and operational shakes by constantly measuring and adjusting based on actual position data.
3Measurement precision
If rapid and accurate distance measurement is implemented, then position adjustment is improved, but measurement and detection difficulty increases
Solution Approach 1:
The patent replaces manual mechanical measurement methods with an automated optical measurement system. The image sensing device captures the marked point's position digitally, and the control unit automatically calculates distances and coordinates through image processing algorithms. This substitution of mechanical measurement with optical-digital measurement system achieves both rapid and accurate distance measurement while simplifying the overall measurement process.
Data Source
AI summary
A method for adjusting the relative position of devices of a laser engraver. The method includes an outputting device of the laser engraver to forms a marked point on a non-working piece. Let the outputting device position the center of the marked point and record it. Then an image sensing device of the laser engraver is moved to the marked point and seeks the center of the marked point. Then, the position point that the outputting device is located is recorded after the outputting device moved according to the movement of the image sensing device. Finally, calculating the distance between the center recorded by the outputting device and the position point recorded after the outputting device moved to obtain the precise distance between the image sensing device and the outputting device.