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What are the advantages of auto zoom laser head?

Views: 27     Author: heyu     Publish Time: 05-29-2020      Origin: Leapion fiber laser cutting machine

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  As we all know, laser cutting machine has an unparalleled advantage in the metal processing industry. Not only the cutting accuracy is relatively high, but also the section is smooth and free of burrs. Whether it is cutting thick plate or thin plate, it can achieve the effect that customers want. Moreover, the cutting effect is closely related to the focus control of laser cutting machine. In order to achieve better cutting effect when cutting thick plate As a result, the focus of the laser beam will be set in different places.

  In the early application of laser cutting, the main way of focusing is to rely on manual. Now with the development of laser technology, this manual focusing method has been gradually eliminated, and the automatic focusing function has been gradually realized,

  For example, the laser cutting machine of lepaion laser can be equipped with full-automatic focusing function. Then, some people will say that the light path is integrated in the cutting head. Can't the focusing function be realized by changing the height of the cutting head? When the cutting head is raised, the focus position will be high, and when the cutting head is lowered, the focus position will be low. However, it turns out that it's not as simple as you think.

  How to focus the laser cutting machine?

  The bottom of laser cutting head is nozzle. In the cutting process, the distance between nozzle and workpiece (nozzle height) is about 0.5-1.5mm, which can be regarded as a fixed value, that is, the nozzle height is not changed, so the focus can not be adjusted by lifting the cutting head (otherwise, the cutting process cannot be completed).

  The focal length of the focusing mirror cannot be changed, so we can't expect to focus by changing the focal length. If the position of the focus mirror is changed, the focus position can be changed: if the focus mirror is lowered, the focus will be lowered, and if the focus mirror is raised, the focus will be raised. ——This is really a way of focusing. A motor is used to drive the focusing mirror to move up and down to realize automatic focusing.

  Another method of automatic focusing is to set a variable curvature mirror (or adjustable mirror) before the beam enters the focusing mirror. By changing the curvature of the mirror and the divergence angle of the reflected beam, the focus position can be changed.

  With the auto focus function, the machine can automatically adjust the focus to the most appropriate position when processing workpieces of different materials and thicknesses. In this way, the processing efficiency of laser cutting machine can be significantly improved, and the perforation time of thick plate can be greatly reduced. Therefore, for laser cutting machine, auto focus function is an important and indispensable function.

  What are the benefits of autofocus?

  Before the beam enters the focusing mirror, a variable curvature mirror (or adjustable mirror) is set for automatic zoom. By changing the curvature of the mirror and the divergence angle of the reflected beam, the focus position is changed.

  With the auto focus function, the machine can automatically adjust the focus to the most appropriate position when processing workpieces of different materials and thicknesses. In this way, the processing efficiency of laser cutting machine can be significantly improved, and the perforation time of thick plate can be greatly reduced.

  Therefore, for laser cutting machine, auto focus function is an important and indispensable function.


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