POLYGONAL COLUMN MEMBER MACHINING DEVICE AND MACHINING METHOD

Provided are a device that can efficiently perform corner chamfer machining of a column member and that can efficiently perform machining of a column member including the corner chamfer machining, anda machining method. A machining device (01) includes: (A) a machining unit that includes a cutting mechanism (10) that performs chamfering by cutting a corner of a workpiece (W), a grinding mechanism(20) for grinding a planar section or a corner section so that the shape of the workpiece is within tolerance, and a polishing mechanism (30) for removing micro-cracks present on the surface of the workpiece by polishing the planar section or corner section of the workpiece that has been grinded; (B) a transporting unit (40) that causes the workpiece to pass through relative to the machining unit; (C) a measuring unit (60) that measures the shape of the workpiece; and (D) a controlling unit (70) that calculates operation conditions for each unit on the basis of results measured by the measuring unit. Each mechanism of