Скачать или смотреть DOWIN laser cutting machine Mark point visual positioning cutting camera calibration explanation

DOWIN laser cutting machine visual positioning system uses cameras and image processing technology to achieve accurate positioning of processing materials and solve the following problems:

Material position deviation: Automatically correct the cutting path when the material is offset or deformed.

Complex graphic alignment: Quickly identify marking points (such as crosshairs, QR codes) to ensure the cutting accuracy of complex patterns.

Efficiency improvement: Reduce manual alignment time, suitable for large-scale, high-precision processing scenarios.

Step 1: System calibration
Camera calibration:
Place the calibration plate (with standard pattern) on the cutting platform.
Capture images at multiple angles through the software and calculate the camera distortion parameters.
Establish the mapping relationship between the image coordinate system and the mechanical coordinate system.
Light source adjustment: Adjust the brightness and angle of the light source to ensure that the marking point is clearly visible.
Step 2: Set the positioning mark
Add positioning marks (such as crosshairs, circular targets) to the material or design file.
Marking requirements: high contrast between color and material, and size suitable for camera resolution.
Step 3: Image acquisition and recognition
Place the material on the cutting platform (allowing certain deviation).
Start the visual system, and the camera captures the surface image of the material.
The software automatically identifies the marking point and calculates the deviation value between the actual position and the theoretical position.
Step 4: Path correction and cutting
The visual system sends the deviation data to the laser cutting controller.
The controller automatically adjusts the cutting path to compensate for the position deviation.
Start laser cutting to complete high-precision processing.