Multi-camera correcting and positioning method and glass laser cutting device

Abstract

The invention relates to a multi-camera correcting and positioning method and a glass laser cutting device. The multi-camera correcting and positioning method comprises the following steps that firstly, an XY virtual coordinate system is established, a mobile platform is moved to the middle position, and the mobile platform moves by plus a and minus a in the X-axis direction and moves by plus b and minus b in the Y-axis direction; secondly, the initial position of the mobile platform is marked with a pattern, pattern marking is conducted after movement every time, a pattern distributed like the speed dial is formed, and the coordinate m0 of the center of the pattern is recorded; thirdly, a new mobile platform coordinate system (x, y) with the m0 as the null point is established, and the mapping relationship between the mobile platform coordinate system and the XY virtual coordinate system is established; fourthly, the pattern is moved to the position under each camera, the positions, existing when the cameras can shoot the whole pattern, of the mobile platform are recorded, and the mapping relationship between the coordinate system (x, y) and a camera coordinate system is established; fifthly, the mapping relationship between the virtual coordinate system and the current camera coordinate system is established; and sixthly, the camera coordinates of the edge of a target are obtained through the multiple cameras, and the camera coordinates are mapped into the virtual coordinate system.

Description

technical field [0001] The invention relates to the technical field of laser micromachining and visual positioning, and more specifically relates to a multi-camera correction and positioning method and a glass laser cutting device. Background technique [0002] In the 3C industry, CNC processing is often used in the processing of screen protection glass. CNC processing speed is slow, and the processing effect is rough. Another grinding equipment is needed to polish the edge of the glass, and the processing effect is poor; traditional processing such as CNC uses modules or In the way of linear motor, the precision of the motor directly determines the processing precision of the product. Often the precision of one-time processing is very high, and the effect is poor. If it cannot be integrally formed, the precision is often poor when secondary processing is required. [0003] New designs, new materials, new processes, and new applications have become the development trend of t...

AI Technical Summary

Problems solved by technology

[0002] In the 3C industry, CNC processing is often used in the processing of screen protection glass. CNC processing speed is slow, and the processing effect is rough. Another grinding equipment is needed to polish the edge of the glass, and the processing effect is poor; traditional processing such as CNC uses modules or In the way of linear motor, the precision of the motor directly determines the processing precision of the product. Often the precision of one-time processing is very high, and the effect is poor. If it cannot be integrally formed, the precision is often poor when secondary processing is required.

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