The invention discloses a rapid
replacement method and device of gas nozzles of a
laser device. The rapid
replacement method and device of the gas nozzles of the
laser device comprises a base plate and at least two paraxial rapid replacement gas
nozzle assemblies arranged on the base plate. The work heights and the angles of the gas nozzles on all the paraxial rapid replacement gas
nozzle assemblies are all different. Each paraxial rapid replacement gas
nozzle assembly comprises an upper end cover, a lower end cover, a gas flotation cylinder body, a gas flotation
piston rod, a gas flotation
piston, a gas nozzle connector and a gas nozzle. According to the rapid
replacement method of the gas nozzles of the
laser device, by switching the paraxial rapid replacement gas nozzle assemblies at different positions to enter the work state, the purpose of rapid replacement of the gas nozzles is achieved. After the rapid replacement device of the gas nozzles is installed on the laser device, switching can be conducted between all the paraxial rapid replacement gas nozzle assemblies and between the paraxial rapid replacement gas nozzle assemblies and a coaxial gas nozzle, manual intervention is not needed, and then rapid, accurate and automatic replacement of the gas nozzles is achieved; besides, the angle and position consistency is effectively guaranteed during each replacement of the gas nozzles, the work stability is good, secondary adjustment is not needed, and the
machining efficiency and quality are effectively improved.