Self-circulation type efficient physical circulation cooling laser cutting head

Abstract

The invention provides a laser cutting head with a self-circulation type efficient physical circulation cooling function, relates to the technical field of laser cutting, and solves the problems that when an existing laser cutting head is used for cutting a plate, although air cooling can be carried out, the temperature is limited by the high temperature of a use environment, and the laser cutting head cannot be used for cutting the plate; in order to solve the problem that the laser cutting head is further heated due to the fact that air is blown to the laser head through hot air even if the air is blown, the laser cutting head comprises a maintenance mechanism, and a main body of the maintenance mechanism is designed to be of a cuboid structure. The protection assemblies are designed to be of an annular structure, and the protection assemblies are installed in the conduction assembly in a longitudinal array mode and are exposed outside through through grooves formed in the conduction assembly in an annular array mode. Therefore, the protection assembly not only can efficiently cool the laser mechanism, but also can hinder sweeps generated when the laser mechanism carries out cutting machining.

Description

technical field [0001] The invention belongs to the technical field of laser cutting, and more specifically relates to a laser cutting head with self-circulating high-efficiency physical circulation cooling. Background technique [0002] Laser cutting is the use of a focused high-power-density laser beam to irradiate the workpiece, so that the irradiated material is rapidly melted, vaporized, ablated or reached the ignition point, and at the same time the molten material is blown away by the high-speed airflow coaxial with the beam, so as to realize the cutting of the workpiece. open. Laser cutting is one of the thermal cutting methods. Laser cutting uses a high-energy-density laser beam to heat the workpiece, so that the temperature rises rapidly, reaching the boiling point of the material in a very short time, and the material begins to vaporize to form steam. These vapors are ejected at a high velocity, and at the same time as the vapors are ejected, incisions are formed...

AI Technical Summary

Problems solved by technology

[0009] In order to solve the above-mentioned technical problems, the present invention provides a self-circulating efficient physical circulation cooling laser cutting head to solve the problem that the existing laser cutting head can perform air cooling when cutting the plate, but it is limited The temperature of the use environment is high, even if the wind blows, the laser head is still blown by hot air, which leads to further heating of the laser cutting head. During the process, the warping of the plate due to heat deformation will be dealt with, and the cutting will fail due to the warping of the plate. The third is that the waste heat generated during laser cutting cannot be recovered when cutting the plate. use defect

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