Single-lamp single-rod double-cavity light path system for laser cutting machine

Abstract

The invention discloses a single-lamp single-rod double-cavity light path system for a laser cutting machine. The light path system comprises a red lamp indicator, a total reflective mirror, light-gathering cavities, a semi-reflective mirror, a water-cooled beam-expanding mirror and a cutting head which are arranged in sequence. The light-gathering cavities comprise the first light-gathering cavity and the second light-gathering cavity. A first xenon lamp is arranged at one end of the first light-gathering cavity, and a first crystal rod is arranged at the other end of the first light-gathering cavity. A second xenon lamp is arranged at one end of the second light-gathering cavity, and a second crystal rod is arranged at the other end of the second light-gathering cavity. The cutting head comprises a head body, a 45-degree total reflective mirror, a focusing mirror, a protecting mirror and a nozzle, wherein the 45-degree total reflective mirror, the focusing mirror, the protecting mirror and the nozzle are connected to the head body in sequence. According to the single-lamp single-rod double-cavity light path system for the laser cutting machine, the mode of double light-gathering cavities is adopted, and the laser power can be increased by fifty percent when the same power is adopted by a laser power source, so that the output power of the equipment is increased, and the cutting capacity is improved.

Description

technical field [0001] The invention relates to an optical path system of a laser cutting machine, in particular to an optical path system of a single-lamp, single-rod, and double-cavity laser cutting machine. Background technique [0002] The laser cutting machine uses the laser beam emitted from the laser generator to be focused into a high-power-density laser beam irradiation condition through the optical path system. Generally, local high temperatures above 10,000°C are generated. The laser heat is absorbed by the workpiece material, and the workpiece temperature is sharp It rises to make the workpiece vaporize instantly. After reaching the boiling point, the material begins to vaporize and form holes. With the high-pressure airflow, as the relative position of the beam and the workpiece moves, the material finally forms a slit. Most of the current YAG laser cutting machines use dual The light path system with single rod and single cavity has low efficiency of converting...

AI Technical Summary

Problems solved by technology

[0002] The laser cutting machine uses the laser beam emitted from the laser generator to be focused into a high-power-density laser beam irradiation condition through the optical path system. Generally, a local high temperature above 10,000°C is generated. The laser heat is absorbed by the workpiece material, and the workpiece temperature is sharp It rises to make the workpiece vaporize instantly. After reaching the boiling point, the material begins to vaporize and form holes. With the high-pressure airflow, as the relative position of the beam and the workpiece moves, the material finally forms a slit. At present, most YAG laser cutting machines use dual The optical path system of single rod and single cavity of the lamp, the efficiency of converting electric energy into light energy in this way is low, which makes the output power of the laser low, so the thickness of the cutting plate is limited, the speed is slow, and the efficiency is low.

Images