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A marking method based on controllable distance indication and 3D laser marking machine

A laser marking machine and 3D technology, applied in the field of laser marking, can solve the problems of distortion of marking pattern, lack of positioning structure, difficulty for technicians to accurately place and adjust the height of marking objects, etc. Focusing efficiency and simple structure

Active Publication Date: 2017-08-25
GUANGZHOU NEW CKLASER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, without a positioning structure, it is difficult for technicians to accurately place and adjust the position and height of the marking object, and 3D surface marking requires very high precision. As long as there is a deviation in the position or height of the marking object, it is likely to cause the entire Distortion of marking pattern
In addition, due to the complexity of the surface of the 3D marking object, the requirements for setting the reference point are flexible and variable, so the traditional fixed focus system has been unable to meet the requirements of 3D laser marking

Method used

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  • A marking method based on controllable distance indication and 3D laser marking machine
  • A marking method based on controllable distance indication and 3D laser marking machine
  • A marking method based on controllable distance indication and 3D laser marking machine

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Embodiment 1

[0077] This embodiment corresponds to the second and third principles mentioned above, that is, the situation where two reflective lenses are used to deflect light, see Figure 5 to Figure 10 , The laser marking machine of the present invention includes a cabinet 9, a reference board 7 arranged on the cabinet 9, a control unit 8 arranged on the cabinet 9, a lifting frame 6 vertically arranged on the reference board 7, a marking head 5, lifting The top of the frame 6 is provided with a rotating handle 61, the marking head 5 is arranged on the lifting frame 6, and the height of the marking head 5 can be adjusted by rotating the rotating handle 61. This is a manual adjustment method. The control unit 8 can also be used in the present invention. Automatically adjust the lifting frame 6, when the height difference of the marking object is large (beyond the laser marking focal length range), the position of the marking head 5 can be adjusted manually or automatically to make the marki...

Embodiment 2

[0086] See attached Picture 11 In this embodiment, the laser, the second visible light beam 321 emitted by the second visible light indicator 320, the reflection device (including the first mirror 332 driven and controlled by the first motor 331 and the second mirror 332 driven and controlled by the second motor 341 The mirror 342) is the same as the first embodiment. The difference is that the front housing of this embodiment is also provided with an adjusting device (a third mirror 352 driven and controlled by a third motor 351), and the first visible light indicator 310 emits The first visible light beam 311 is emitted. The first visible light beam 311 encounters the third reflector 352 during the transmission process. The first visible light beam 311 is reflected by the third reflector 352 and intersects the second visible light beam 321. The intersection point is For the optimal working point of laser marking, the additional adjustment device plays the same role as the sec...

Embodiment 3

[0088] See attached Picture 12 In this embodiment, the first principle is applied, that is, the second visible light beam 121 is reflected only once. The reflection device in this embodiment is different from the first embodiment, and the reflection device in this embodiment is driven by the first motor 131 The deflected first mirror 132.

[0089] The first visible light indicator 110 in this embodiment and the first visible light indicator 210 in the first embodiment can be installed on the front housing in the same manner. The first visible light indicator 110 in this embodiment emits the first visible light. The light beam 111 is a downward fixed light. The first reflecting mirror 132 controls the deflection of the second visible light beam 121 through the first motor 131 to achieve the effect of changing the height of the intersection; the structure of this embodiment is simple and the cost is low, and only needs to be used A reflective lens, but the requirements for install...

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Abstract

A controllable distance indication method and a controllable distance indication device for a 3D laser marking machine. The controllable distance indication device comprises a first visible light indicator (110, 110a, 110b, 210, 210', 310), a second visible light indicator (120, 220, 220', 320) and a control unit (8). The first visible light indicator can emit a first visible light beam (111, 111a, 111b, 211, 211', 311) to a marking area. A reflection device is arranged in the light path of the second visible light indicator and used for reflecting a second visible light beam (121, 121a, 121b, 221, 221', 321). After the second visible light beam is reflected, the second visible light beam and the first visible light beam converge in the marking area. The control unit controls the deflection angle of the reflection device so that the convergence point of the first visible light beam and the second visible light beam corresponds to an initial focal point of the 3D laser marking machine. In this way, the initial focal distance of the laser marking machine is displayed by controlling convergence of the visible light beams, and the controllable distance indication device can carry out focusing automatically and complete indication of the initial focal distance accurately and rapidly.

Description

Technical field [0001] The invention relates to the field of laser marking, in particular to a marking method for laser marking a three-dimensional surface of an object with a controllable distance indication and a 3D laser marking machine using the method. Background technique [0002] Laser marking machine (laser marking machine) is a technology that uses a laser beam to make permanent marks on the surface of a substance. This technology uses a laser to generate a laser beam, undergoes a series of optical transmission and processing, and finally focuses the beam through an optical lens, and then deflects the focused high-energy beam to a designated position on the surface of the object to be processed. The laser marking machine can mark various characters, symbols and patterns, and the market application prospect is broad. [0003] The traditional laser marking machine only performs marking on a two-dimensional plane. When marking, because the laser beam is not visible, in orde...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K26/36B23K26/04
CPCB23K26/04B23K26/361B41J2/435
Inventor 徐强
Owner GUANGZHOU NEW CKLASER CO LTD
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