Enclosed Type

Laser cutting machine automatic focusing method

by：Transon 2020-10-29

Laser cutting machine nozzle at the bottom of the cutting head, in the process of cutting, the distance between the nozzle and the workpiece, The nozzle height) About 0. 5 ~ 1. 5 mm, might as well as a fixed value, namely the nozzle height remains the same, so can't focus (by lifting the cutting head Cannot complete cutting processing) 。 The focal length of the focusing lens is immutable, so can't count on by changing the focal length to focus. If you change the position of the focusing lens, can change focus location: focus lens, the focal point is reduced, the focus lens, the focal point. — — This is a way of focusing. Driven by a motor focus lens movement up and down, can realize the automatic focus. Another kind of automatic focus is: before the beam into the focusing lens, buy a variable curvature reflector ( Or adjustable mirror) By changing the curvature of the mirror, change the reflected beam divergence Angle, so as to change the focus position.

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