POLISHING DEVICE FOR METAL MOLD

PROBLEM TO BE SOLVED: To facilitate polishing work, and enhance polishing efficiency by semiautomating a device so as to perform polishing work by operating a nozzle unit to inject fluid abrasive into a surface of a metal mold or the like by an operator. SOLUTION: A nozzle unit 90 to inject fluid abrasives, respectively moves in the shaft (X axis) direction of a first guide bar and in the shaft (Y axis) direction of a second guide bar by operating driving means 44 and 64, and moves in the vertical direction (the Z axis direction) by control of a motor device, and is constituted so that horizontal directional swinging actuation is performed by a first rotary actuator or a second rotary actuator, and vertical directional swinging actuation is performed by the second rotary actuator or the first rotary actuator.