LASER CUTTING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a laser cutting device capable of suppressing a temperature rise of a nozzle.SOLUTION: A laser cutting device comprises: an optical system for supplying a laser beam from a laser source; a lens barrel for holding the optical system; and a laser beam emitting part through which the laser beam passing the optical system is emitted. The laser cutting device further comprises: a nozzle emitting the laser beam in a state of facing an object to be cut; and a cooling member which has a first channel through which coolant supplied from a liquid supply device flows and cools the nozzle.SELECTED DRAWING: Figure 4