Overview of the composition and maintenance of laser cutting heads

Overview of the composition and maintenance of laser cutting heads

Laser cutting heads are generally composed of a cutting nozzle, collimation assembly, focusing assembly, protective mirror box and sensor and control box. Details are as follows.

Components of the laser cutting head.

1. Collimation assembly: converges the diverging light transmitted from the optical fibre and straightens or collimates it. The collimation component also includes a collimation alignment section and a water cooling section.

2、Focusing component: placed inside the body to focus the collimated parallel laser beam, the focus position can be changed through the focusing part of the focusing component to meet the needs of cutting different materials and different thicknesses of plates.

3、Protective mirror box: used to isolate the outside world from the internal optical path of the cutting head, to ensure that the optical path is sealed and to prevent dust and impurities from entering the optical path, extending the service life of the fibre optic cutting head.

4, sensor and control box: can make the distance between the cutting head and the surface of the workpiece long-term, reliable and stable, to ensure that the best cutting quality.

5、Cutting nozzle: installed in the front of the cutting head, is the laser beam and pavement gas discharge m channel. The auxiliary gas passes through the inner cavity of the nozzle and forms a high-speed airflow. The molten material will be blown away to achieve the purpose of cutting.

Maintenance of the laser cutting head.

1, before going to and from work with a brush to clear the dust, and then clean the entire cutting head exterior with a small amount of alcohol in a dust-free cloth (note that you can not use gas blowing).

2, check whether the light comes out from the centre of the nozzle before cutting, otherwise, re-adjust the light correction.

3、Check the roundness and cleanliness of the nozzle before cutting and clean the nozzle.

4、Check daily if the protective lens is clean, otherwise, clean the protective lens with isopropyl alcohol or analytical alcohol (with an alcohol content of 99.5% or more), clean and without water stains.

5. Check daily if the ceramic ring, SMA cable, SMA pin, preamplifier are loose and have foreign objects, tighten and clean.

The high power 355 UV/532 green precision cutting head is mainly used in the PCB board industry for PCB laser sub-boarding, such as UV laser cutting of FR4, reinforced steel sheets, FPC, soft and hard bonded boards, glass fibre boards.

Ultra-thin metal materials UV laser cutting applications Ultra-thin metal refers to metal materials below 0.2 mm, such as copper foil, aluminium foil, stainless steel and alloy materials. The UV laser cutting process is burr-free, low-carbon and distortion-free, enabling precision cutting, and is commonly used in industries such as military spare parts and photovoltaic copper foil.

The main features of this high power laser precision cutting head are: adjustable in collimation XY direction; equipped with precision manual focus mechanism and nozzle components; water-cooled heat dissipation; completely sealed internal structure; drawer type structure, easy to replace.