Three-dimensional scanning imaging processing equipment and method based on galvanometer

A technology of three-dimensional scanning and processing equipment, which is applied in the direction of metal processing equipment, welding equipment, laser welding equipment, etc., and can solve problems such as the inability to guarantee workpiece surface coincidence, human error, etc.

Pending Publication Date: 2021-05-25
WUHAN HGLASER ENG CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that there are human errors in the prior art, which makes it impossible to ensure that all points on the surface of the workpiece coincide with the focal plane of the laser, one of the purposes of the present invention is to provide a three-dimensional scanning imaging processing equipment based on a vibrating mirror

Method used

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  • Three-dimensional scanning imaging processing equipment and method based on galvanometer
  • Three-dimensional scanning imaging processing equipment and method based on galvanometer
  • Three-dimensional scanning imaging processing equipment and method based on galvanometer

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Embodiment 1

[0055] Please also refer to Figure 1 to Figure 4 , this embodiment provides a galvanometer-based three-dimensional scanning imaging processing equipment for processing workpieces based on photothermal effects, such as welding, cutting, engraving, surface modification, marking, drilling, and micromachining. This galvanometer-based three-dimensional scanning imaging processing device includes a light source 10 , a first optical mirror 20 , a first zoom lens 30 , a galvanometer mirror 40 , a focusing mirror 50 and a detection unit 60 . Wherein, the laser beam emitted by the light source 10 passes through the first optical mirror 20, the first zoom lens 30, the vibrating mirror 40, and the focusing mirror 50 in sequence, and then irradiates on the workpiece surface to form an incident optical path. The light reflected from the surface of the workpiece passes through the focusing mirror 50 , the vibrating mirror 40 , the first zoom lens 30 and the first optical mirror 20 in sequen...

Embodiment 2

[0074] see Figure 5 , the present embodiment provides a processing method using the above-mentioned galvanometer-based three-dimensional scanning imaging processing equipment, the specific steps are as follows:

[0075] S1, placing the workpiece, and correcting the vibrating mirror 40 and the first zoom lens 30 to zero.

[0076] The correction process refers to the 3D galvanometer format correction method.

[0077] S2, causing the light source 10 to emit a first type of laser beam to irradiate the workpiece to form a light spot 90 .

[0078] The first kind of laser beam is a low-power laser beam used for scanning, after it passes through the first optical mirror 20, the first zoom lens 30, the vibrating mirror 40 and the focusing mirror 50 in sequence, it is irradiated on the workpiece surface along the third direction, and A light spot 90 is formed. Part of the reflected light at the light spot 90 passes through the focusing mirror 50 , the vibrating mirror 40 , the first...

Embodiment 3

[0090] see Image 6 , the present embodiment provides a three-dimensional scanning imaging processing device based on a vibrating mirror. The difference from Embodiment 1 is that this three-dimensional scanning imaging processing device based on a vibrating mirror further includes a second optical mirror 70 and a second zoom The lens 80 and the light source 10 are composed of a first laser 11 and a second laser 12 .

[0091] One side of the first optical mirror 20 that allows light to be reflected faces the first laser 11 , and the other side faces the detection unit 60 .

[0092] The second optical mirror 70 is a dichroic mirror, one side of which allows light to transmit, and the other side allows light to reflect. In addition, the second optical mirror 70 is parallel to the first optical mirror 20 and is located on the same side of the first optical mirror 20 as the first laser 11 . One side of the second optical mirror 70 that allows the reflection of light faces the fir...

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Abstract

The invention provides three-dimensional scanning imaging processing equipment and method based on a galvanometer. The three-dimensional scanning imaging processing equipment based on the galvanometer comprises a light source, a focusing mirror, the galvanometer, a first zoom lens, a first optical lens and a detection unit, wherein the galvanometer is connected with the light inlet side of the focusing mirror; the first zoom lens is arranged on the light inlet side of the galvanometer; the first optical lens is arranged on the light inlet side of the first zoom lens; one side of the first optical lens allows laser beams to transmit, and the other side of the first optical lens allows the laser beams to reflect; and the detection unit and the light source are respectively arranged on two sides of the first optical lens. The light source emits two laser beams in sequence, and the two laser beams are respectively used for scanning three-dimensional coordinates of the surface of a workpiece and processing the surface of the workpiece. The two laser beams are homologous, and light paths are superposed, so that human errors generated in the workpiece placing process cannot influence the processing course, and it can be ensured that all points on the surface of the workpiece can be superposed with a focal plane of laser.

Description

technical field [0001] The invention relates to the field of laser processing, in particular to a galvanometer-based three-dimensional scanning imaging processing equipment and processing method. Background technique [0002] The principle of laser processing is to focus the laser through a lens to achieve a high energy density at the focus, and to process by the photothermal effect. CNC machine tool laser processing technology combines multi-axis machine tools, vibrating mirrors and lasers, making full use of the advantages of laser non-contact processing and high energy density, and is widely used in welding, cutting, engraving, surface modification, marking, drilling, micro Processing and processing of traditional difficult-to-machine materials. [0003] When using existing laser processing equipment to process a three-dimensional workpiece, in order to generate a three-dimensional processing trajectory, it is necessary to obtain a three-dimensional model of the workpiec...

Claims

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Application Information

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IPC IPC(8): B23K26/04B23K26/064B23K26/082B23K26/00
CPCB23K26/04B23K26/064B23K26/082B23K26/00Y02P10/25
Inventor 王雪辉雷桂明许维喻浩王建刚
Owner WUHAN HGLASER ENG CO LTD
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