Laser cleaning device

Abstract

The invention discloses a laser cleaning device. The laser cleaning device comprises a movable workbench, a laser generator, a beam regulator, a controller and a rotating mechanism, wherein the movable workbench is used for holding to-be-cleaned parts; the laser generator corresponds to the movable workbench and is used for emitting laser; the beam regulator corresponds to the laser generator and is used for regulating the laser into a long strip shape and scanning the laser for scanning the to-be-cleaned parts at a set scanning speed; the controller is connected with the movable workbench, the laser generator and the beam regulator, and used for setting the laser power of the laser generator, the moving speed of the movable workbench and the setting scanning speed of the beam regulator and determining the compensation angular speed according to the moving speed and the scanning speed; and the rotating mechanism is connected with the beam regulator and the controller, and used for driving the beam regulator to rotate according to the compensation angular speed, so that the scanning track of the beam regulator is perpendicular to the moving direction of the to-be-cleaned parts. According to the cleaning device provided by the invention, plate workpieces with large widths can be efficiently cleaned.

Description

technical field [0001] The invention relates to the field of laser applications, in particular to a laser cleaning device. Background technique [0002] Hot rolling is relative to cold rolling, cold rolling is rolling below the recrystallization temperature, and hot rolling is rolling above the recrystallization temperature. During the hot rolling process, a layer of oxide film will be formed on the surface of the steel plate, which will affect the flatness and glossiness of the steel plate surface, reduce the surface quality of the steel plate, and cover up the surface defects of the strip steel, causing difficulties for the subsequent use of the steel plate. If these strips with oxide film are directly sent to the cold rolling mill for rolling, the surface quality and processing performance of the cold rolled plate will be affected, and even the damage of the circulation equipment and the cold rolling roll will be caused. Therefore, before the strip is cold-rolled, its ox...

AI Technical Summary

Problems solved by technology

[0006] At present, the laser power used in the existing laser cleaning system for metal surface dirt is small, and the cleaning efficiency is limited

Since the beam adjustment system adopted scans the beam on the surface of the workpiece through the two-dimensional galvanometer system, and the reciprocating swing angle range of the galvanometer is limited, when the width of the workpiece to be cleaned is large, it is necessary to increase the distance between the workpiece surface and the beam adjustment system. The distance between them will cause the laser spot area irradiated on the surface of the workpiece to be too large and make its energy density too low, which cannot guarantee the cleaning quality and cleaning efficiency.

Moreover, since the vibrating mirror is in a reciprocating swing state during operation, the vibrating mirror has a certain inertia when reciprocating, and the existence of inertia limits the vibrating frequency of the vibrating mirror. Therefore, the vibrating mirror cannot perform high-speed reciprocating swinging, that is, it cannot Perform high-speed scanning

It can be seen that the laser cleaning system based on the galvanometer has slow cleaning speed and low cleaning efficiency, and can only clean small workpieces, and the size of the workpieces that can be cleaned is very limited.

[0007] To sum up, it can be seen that the existing cleaning methods cannot efficiently clean large-format plate workpieces

Images