A large-format laser marking method and device

A laser marking and large-format technology, which is applied in the field of laser marking, can solve the problems of inconsistent laser energy density, insufficient marking accuracy, inconsistent marking thickness and depth, etc., and achieve the effect of exquisite and beautiful products and uniform marking

Active Publication Date: 2021-05-18
HANS LASER TECH IND GRP CO LTD
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Problems solved by technology

[0006] The embodiment of the present invention provides a large-format laser marking method and equipment. The purpose is to solve the inconsistency of the focused spot size formed on the workpiece after the existing laser marking technology adopts an optical focusing lens such as an F-theta lens. The energy density is inconsistent, the marking thickness and depth are inconsistent, the marking effect is uneven, and the marking accuracy is not enough

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  • A large-format laser marking method and device
  • A large-format laser marking method and device
  • A large-format laser marking method and device

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Embodiment Construction

[0048] In order to facilitate the understanding of the present invention, the present invention will be fully described below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0049] Unless otherwise defined, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0050] The embodiment of this aspect also provides a large-format laser marking method, refer to figure...

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Abstract

The invention relates to the technical field of laser marking, and discloses a large-format laser marking method, which includes: adjusting the focus of the laser to the surface of the workpiece, so that the focal lengths of the laser to the surface of the workpiece are consistent, wherein the surface of the workpiece includes several marking Marking area; According to the preset marking path, marking is carried out sequentially in several of the marking areas, wherein, when marking in any one of the marking areas, according to the preset spot diameter correction table to obtain all Correct the spot diameter correction parameters corresponding to the marking area, correct the diameter of the focused laser spot in the marking area according to the spot diameter correction parameters, and perform laser marking according to the corrected spot diameter. The large-format laser marking method provided by the embodiment of the present invention makes the size of the focused spot formed by the laser on the workpiece consistent, the marking thickness and depth are consistent, the marking effect is uniform, and the marking accuracy is high; in addition, the present invention also provides a method that implements the aforementioned method equipment.

Description

technical field [0001] The invention relates to the technical field of laser marking, in particular to a large-format laser marking method and equipment. Background technique [0002] With the increasing application of laser technology, the quality requirements of laser processing technology in the market are also getting higher and higher. If uniform laser marking is required on the surface of a large-format workpiece, the traditional laser marking method is to use high-power Lasers and large-range F-theta lenses (linear imaging lenses) are used for large-scale marking. This laser processing method has objective defects: due to the objective shortcomings of optical devices and installation accuracy, the entire work of large-range F-theta lenses There will be inconsistencies in the size of the focused spot and the inconsistency of the laser energy density in the plane, which will lead to the inconsistency in the thickness and depth of the middle and edge lines in the actual ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41J2/435B23K26/362
Inventor 范醉风陈克胜吴烈高云峰
Owner HANS LASER TECH IND GRP CO LTD
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