Nozzle installation structure of laser processing machine

A nozzle installation structure of the laser processing machine comprising a nozzle attachment (12) installed under a processing head housing (11), a cover body (13) installed outside the nozzle attachment (30) and a processing nozzle (20) combined to the nozzle attachment (12) via a nozzle adapter (30), whereby purge gas supplied through a supply flow path formed in the housing (11) is discharged through a purge gas discharge gap (G) between the nozzle attachment (12) and the lower end of the cover body (13),

• the nozzle installation structure further comprising:
• a spatter blocking plate (40) having a plurality of purge gas discharge holes (41) and combined to the outer periphery of the nozzle adapter (30);
• a purge gas guider (50) disposed between the nozzle attachment (12) and the spatter blocking plate (40) and combined to the outer periphery of the nozzle adapter (30);
• wherein the purge gas guider (50) comprises an upper concave portion (51) forming a ring-shaped space under the purge gas discharge gap (G), a lower concave portion (52) forming a ring-shaped space above the upper part of the purge gas discharge hole (41) of the spatter blocking plate (40) and a plurality of purge gas through holes (53) connecting the upper concave portion (51) and the lower concave portion (52).