A fast and precise laser cutting device and method for three-dimensional curved glass

Abstract

The invention discloses a device and a method capable of quickly and accurately laser cutting three-dimensional cambered-surface glass. The device comprises a support, a placing platform, a movable locating mechanism, a high-speed laser system and a control system, wherein the high-speed laser system comprises a contactor and a focusing lens; the focusing lens can receive laser and focus a focus point of the laser inside and outside the whole thickness of the three-dimensional cambered-surface glass, the opposite positions of the focusing lens and the contactor can be always kept fixed, and the contactor can always keep 90-degree perpendicularity to the surface of the three-dimensional cambered-surface glass; when the placing platform moves, the contactor can move up and down along the surface outline of the three-dimensional cambered-surface glass under the gravity action, and a peak of the contactor can be always in contact with the surface of the three-dimensional cambered-surface glass. The device disclosed by the invention has the advantages that the focus point of the laser can be always ensured to be inside and outside the whole thickness of the glass by following 3D irregular cambered surface, manual edge breaking is replaced, and energy conservation and environmental friendliness are achieved.

Description

technical field [0001] The invention relates to the field of optical technology, in particular to a laser energy-concentrating processing device, in particular to a device and method for fast and accurate laser cutting of three-dimensional curved glass. Background technique [0002] In the prior art, the processing of automobile rearview mirrors is completed by mechanical processing, and the general process is as follows: take a square curved glass as the original piece, install the glass knife on the automatic cutting machine, and carry out the processing according to the preset size parameters. Scribing and cutting, cutting out the shape of the rearview mirror, breaking off the excess part, chamfering and edging the rearview mirror through an edge grinder, and then cleaning it to become a finished product. [0003] The problems of the above processing technology are: low efficiency, need to go through multiple processes, and need to be cleaned, which is not environmentally...

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Problems solved by technology

[0005] The present invention overcomes the technical problems of low efficiency, wasting materials, polluting the environment, and deviations in processing dimensions in the above-mentioned prior art, and provides a high-speed, high-precision, high-efficiency, non-polluting environment and high yield rate. High device and method for cutting three-dimensional curved glass with laser

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