Laser cutting device and cutting method for profiled bar

Abstract

The invention discloses a laser cutting device for a profiled bar. The laser cutting device for the profiled bar comprises a cooling-water machine (1), a laser (2), an air source (3), a laser cutting head (4), a laser cutting head fast forward shaft (5), a scanning lens (6), a profiled bar clamp (8), an ultrasonic auxiliary generating device (9), a machine tool body (10) and a control panel (11). The invention further discloses a laser cutting method for the profiled bar. The laser cutting method for the profiled bar aims at the characteristics of complex change of the section shape and the wall thickness of the profiled bar and the machining requirement for a large number of deep groove type holes, the laser cutting speed is matched on the basis of full-power laser energy output according to the change of the thickness and the shape of the section contour, and therefore the machining efficiency is maximized. Meanwhile, an optical module in the laser cutting head of the device adopts a long-focus focus lens, and is matched with a long taper sleeve, so that active anti-interference machining of the deep groove type holes is realized.

Description

technical field [0001] The invention belongs to the technical field of laser cutting, and in particular relates to a laser cutting device and a cutting method for profiled materials. Background technique [0002] There are many kinds of profiles and complex structures, and the efficiency of traditional cutting processing methods is very low. Laser cutting is a method of cutting workpieces with high-power-density laser beams. It has the advantages of fast processing speed and good processing quality. It is an ideal solution for processing special-shaped materials. [0003] When conventional laser cutting is processing workpieces, it is necessary to change the laser output power according to the cutting speed, so as to meet the matching between power and speed to prevent over-burning during processing, but adjusting the laser power according to the processing speed cannot be realized in the entire processing process. The full power output of the laser is a waste of laser powe...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems such as difficulty in variable section cutting, deep groove cutting interference, and poor edge quality of laser processing in laser cutting of profiled aluminum doors and windows, the present invention proposes to keep the laser cutting power constant throughout the processing process to ensure smooth processing of each section. Under the condition of full-power laser output, the maximum-speed automatic cutting device and method for cutting special-shaped workpieces are realized.

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