Abstract: A water jet laser processing machine (100) is provided with a nozzle (26) that can eject a water column (34) and introduce a laser beam into the water column (34), a pump (40) that supplies pressurized water to the nozzle (26), a pressure sensor (42) that detects the pressure of the water supplied from the pump (40) to the nozzle (26), a storage unit (52) that stores a threshold value for assessing a decrease in the pressure of the water supplied from the pump (40) to the nozzle (26), and a determination unit (51) that, on the basis of the pressure detected by the pressure sensor (42) and the threshold value stored by the storage unit (52), determines whether the pressure detected by the pressure sensor (42) has decreased, thereby determining whether the nozzle (26) has damage.

Abstract: A laser machining apparatus for machining a workpiece placed and fixed on a table by moving the irradiation position of a laser beam on the workpiece while irradiating the workpiece is provided with: a laser oscillator; a laser irradiation head that emits the laser beam from the laser oscillator toward the workpiece and that is provided with a galvano-scanner for moving a laser beam irradiation position on the surface of the workpiece in two directions; a parallel manipulator that changes the orientation of the laser irradiation head; a slide member that supports the parallel manipulator; and linear feed shaft device that moves the slide member in at least two orthogonal directions relatively to the table.

Abstract: In order to monitor replacement time for a consumable part of a machine tool, the present invention defines a time period after the power of the machine tool is turned off until the next turn-on thereof as a pause time for the consumable part, and provides a notification that the replacement time for the consumable part has come when the pause time is not less than a predetermined threshold.

Abstract: In order to monitor replacement time for a consumable part of a machine tool, the present invention defines a time period after the power of the machine tool is turned off until the next turn-on thereof as a pause time for the consumable part, and provides a notification that the replacement time for the consumable part has come when the pause time is not less than a predetermined threshold.