Laser marking focus rapid positioning method and device

A laser marking, fast technology, applied in the direction of laser welding equipment, welding equipment, metal processing equipment, etc., to achieve the effect of improving production, reducing loss and reducing cost

Pending Publication Date: 2018-05-29
Shandong Huaguang Optoelectronics Co. Ltd.
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The principle of this focusing method is the same as that of the prior art, so there are the same technical defects

Method used

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  • Laser marking focus rapid positioning method and device
  • Laser marking focus rapid positioning method and device
  • Laser marking focus rapid positioning method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] A method for quickly locating a laser marking focus, comprising: fixing a distance measuring sensor on one side of a laser lens 111 of a laser marking machine, so as to use the distance measuring sensor to focus a laser on an object to be marked.

Embodiment 2

[0048] The method for fast positioning of laser marking focus as described in Embodiment 1, the difference is that the method for fast positioning of laser marking focus further includes: establishing a laser marking focus distance database corresponding to different materials.

[0049] The establishment of the laser marking focal distance database corresponding to different materials includes: conducting experiments on objects to be laser marked of different materials, and correlating the laser marking focal distance and the material to obtain the optimal laser marking effect to form the corresponding laser marking focus distance database.

Embodiment 3

[0051] A method for fast positioning of laser marking focus as described in Example 2, the difference is that the method for fast positioning of laser marking focus further includes: establishing the laser marking focus distance database corresponding to different materials After that, coarsely adjust the focal distance of laser marking and finely adjust the focal distance of laser marking.

[0052] The coarse adjustment of the focal distance of laser marking is as follows: determining the focal distance of laser marking according to the surface material of the object to be marked, so as to realize the coarse adjustment of the focal distance of the laser lens;

[0053] Fine-tuning the focal distance of laser marking is: through the marking experiment, adjust the focal distance of the laser lens to obtain the optimal laser marking effect.

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PUM

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Abstract

A laser marking focus rapid positioning method comprises the steps that a distance measuring sensor is fixedly arranged on one side of a laser lens of a laser marking machine, and laser focusing is conducted on a to-be-marked object through the distance measuring sensor. The distance between the laser lens and a laser marking focus is determined directly through the distance measuring sensor, namely, the laser marking focus is determined, therefore, when the object to be subjected to laser marking is machined again, multiple times of marking experiments are not needed, and the optimal laser marking effect can be achieved only through the mode that the laser focus is moved to the surface of the object through the distance measuring sensor. The distance between the laser lens and the laser marking focus can be called, for short, as the laser marking focus distance. The direction of the distance measuring sensor is aligned with the center of a machining area, the laser lens focus is calibrated, and the numerical value of the distance measuring sensor is recorded.

Description

technical field [0001] The invention relates to a method and a positioning device for fast positioning of a laser marking focus, belonging to the technical field of laser processing equipment. Background technique [0002] With the rapid development of society and the continuous advancement of technology, people have higher and higher requirements for the pursuit of individuality and the beauty of objects, and the "marking" technology has also been entrusted with important tasks. Due to the high destructive power of the items, the relatively complicated process, and the short marking time, etc., it has gradually failed to meet people's needs. [0003] Laser marking machines are widely used in the marking of daily handicrafts and product marking. Laser marking machines use laser beams to mark permanent marks on the surface of various materials. The principle of marking is to expose deep materials through the evaporation of surface materials, or to cause chemical changes in t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K26/362B23K26/04
CPCB23K26/048B23K26/361
Inventor 秦华兵乔世香尚秀涛王友志徐现刚
Owner Shandong Huaguang Optoelectronics Co. Ltd.
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