Nozzle air guide device for laser cutting head

Abstract

The invention provides a nozzle air guide device for a laser cutting head. The nozzle air guide device comprises a hollow shell, a lower protective glass seat, a nozzle and a hollow guide cylinder, wherein the lower protective glass seat is arranged at the end, close to optical fiber, of the shell, and the nozzle is arranged at the end, far away from the optical fiber, of the shell; the shell is fixedly connected with the lower protective glass seat and the nozzle respectively, and the inner parts of the shell, the lower protective glass seat and the nozzle successively communicates to form athrough-going laser passage; a through-going air inlet pipe is arranged on the nozzle, an air source communicates with the laser passage through the air inlet pipe, and the air inlet pipe is used forconveying cutting gas; the guide cylinder is arranged in the laser passage and is fixedly connected with the inner surfaces of the shell, the lower protective glass seat and the nozzle respectively; and the guide cylinder communicates with the air inlet pipe and the laser passage respectively. The nozzle air guide device uses the guide cylinder to adjust the direction and the flow speed of airflow, so that the airflow is more stable. An air storage tank is combined with a flow guide tank, so that an effect of redistributing the airflow can be achieved.

Description

technical field [0001] The invention relates to the field of laser cutting equipment, in particular to an air guiding device for a nozzle of a laser cutting head. Background technique [0002] Laser processing equipment is a device that uses the advantages of high energy and high efficiency of laser to make production and processing faster and safer. Laser processing equipment mainly includes applications such as laser welding, laser cutting, laser marking and laser drilling. Among them, laser cutting is to use the high-power-density laser beam emitted by the laser cutting head to quickly raise the surface temperature of the metal material to the boiling point, thereby completing the cutting operation. Good cutting effect. [0003] The laser cutting head mainly includes the laser interface part that guides the optical fiber into the cutting head, the collimating lens assembly that converges the divergent light of the optical fiber, the focusing lens assembly that focuses t...

AI Technical Summary

Problems solved by technology

However, the air pressure during existing laser cutting is not stable, which adversely affects the quality and speed of laser cutting

Images