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An Important Function of Laser Cutting Machine - Automatic Focus
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An Important Function of Laser Cutting Machine - Automatic Focus

Views: 0     Author: HanTenCNC     Publish Time: 2022-01-28      Origin: Site

laser cutting machine

Focus control means that when the laser cutting machine cuts different materials and plates with different thicknesses, in order to achieve a better cutting effect, the focus of the laser beam will be set in different places, which is what we call focusing. With the breakthrough of industrial control technology, the automatic focusing cutting head is indispensable in the automation of laser cutting.


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


The bottom of the laser cutting head is the nozzle. During the cutting process, the height of the nozzle does not change, so the focus cannot be adjusted by raising and lowering the cutting head. The focal length of the focusing mirror is immutable, so you can't expect to adjust the focus by changing the focal length. If you change the position of the focusing mirror, you can change the focus position: when the focusing mirror goes down, the focus goes down, and when the focusing mirror goes up, the focus goes up, which is a way of focusing. Using a motor to drive the focusing mirror to move up and down can realize automatic focusing.


Another automatic focusing method is to install a variable curvature mirror before the beam enters the focusing mirror, and by changing the curvature of the mirror, the divergence angle of the reflected beam is changed, thereby changing the focus position.


With the automatic focusing function, when processing workpieces of different materials and thicknesses, the machine can automatically quickly adjust the focus to the most suitable position, which can significantly improve the processing efficiency of the laser cutting machine and greatly reduce the perforation time for thick plates. . Therefore, for the laser cutting machine, the automatic focusing function is an important and indispensable function.


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