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Three-dimensional laser marking method and device and storage medium

A three-dimensional laser and laser technology, applied in laser welding equipment, welding equipment, metal processing equipment, etc., can solve the problems of low processing accuracy and poor marking effect

Active Publication Date: 2018-05-11
SHENZHEN TETELASER TECH CO LTD
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Problems solved by technology

[0003] Based on this, it is necessary to provide a three-dimensional laser marking method, device and storage medium for the problems of low processing accuracy and poor marking effect when the front-focus galvanometer-type three-dimensional laser marking system processes large-format three-dimensional curved surfaces

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  • Three-dimensional laser marking method and device and storage medium
  • Three-dimensional laser marking method and device and storage medium
  • Three-dimensional laser marking method and device and storage medium

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Embodiment Construction

[0042] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0043] figure 1 It is a schematic structural diagram of a front-focus galvanometer-type three-dimensional laser marking system 100 according to an embodiment. The front-focus galvanometer-type 3D laser marking system 100 includes a laser 110 , a beam expander 120 , a Z-axis dynamic focusing lens group 130 , an X-axis galvanometer 140 and a Y-axis galvanometer 150 along the optical path of the laser. The front focusing galvanometer three-dimensional laser marking system 100 also includes a control unit.

[0044] The laser 110 is used to generate a laser beam for marking. The beam expander 120 expands and collimates the laser beam and adjusts it to a parallel beam. The Z-axis dynamic focus lens group 130 is used to adjust the focal le...

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Abstract

The invention relates to a three-dimensional laser marking method. The method comprises the steps that a three-dimensional rectangular coordinate system is established with the direction parallel to alaser beam as one coordinate axis, the focus depth of the laser beam is divided into N equal diversion points, and focus planes are established through the equal diversion points; a plurality of nodes are marked in each focus plane, and accordingly the focus planes are calibrated; the original coordinates of a marking point in the three-dimensional rectangular coordinate system are obtained, andthe node corresponding to the marking point serves as a correction node according to the marking point; according to the coordinates of the correction node, the coordinates of the marking point are corrected, and the corrected coordinates of the marking point are obtained; and the distance between the marking point and the laser emitting point is calculated according to the corrected coordinates of the marking point and the coordinates of the laser emitting point, and the distance is set as the actual focal length for marking. The invention further relates to a three-dimensional laser markingdevice and a storage medium. According to the three-dimensional laser marking method and device and the storage medium, a front focus galvanometer type marking system can obtain high machining precision, and the marking effect is good.

Description

technical field [0001] The invention relates to the technical field of laser processing, in particular to a three-dimensional laser marking method, device and storage medium. Background technique [0002] With the diversification of market demand, laser scanning technology is also constantly innovating and developing. Among them, the front-focus galvanometer laser marking system is widely used in laser marking systems due to its high speed, small focus spot and stable performance. However, most of the 3D front-focus marking systems currently on the market are (Including optical distortion, focusing error, etc.) has low correction accuracy, which can only meet low-precision processing requirements, and the processing effect is poor, so it cannot be applied to large-format three-dimensional curved surface precision processing. Contents of the invention [0003] Based on this, it is necessary to provide a three-dimensional laser marking method, device and storage medium for ...

Claims

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Application Information

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IPC IPC(8): B23K26/362B23K26/70
Inventor 盛辉李启程黄小龙周威张磊张凯周红林贾长桥刘伟刘文慧梁君屏
Owner SHENZHEN TETELASER TECH CO LTD
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