A rotatable pallet changing apparatus, a system and a method are provided in which the rotatable pallet changing system has a rotatable bed having a first pallet and a second pallet side-by-side and set on tracks. A first and a second workpiece may be set upon a first pallet and a second pallet, respectively. As the first pallet with the first workpiece is drawn into a machining center to be worked upon, the second workpiece may be added to the second pallet. When the first workpiece on the first pallet is finished being worked upon, it is withdrawn from the machining center and placed upon the rotatable bed. The rotatable bed then rotates, allowing the second pallet to be fed into the machining center and further allowing the first workpiece to be off-loaded from the first pallet.
The present invention provides a tool changer of a machine tool capable of suppressing cost increase and preventing size increase of the machine when a tool magazine is mounted. In a tool changer of a machine tool provided with a pallet change mechanism 10 in which a machining-side pallet 11 disposed on a machining area A side and a standby-side pallet 12 disposed on a standby area B side are turned around a turn shaft 14 by a turning member 13 to be automatically changed, a tool magazine 28 holding a plurality of tools T1 to T4 is disposed between the machining-side pallet 11 and the standby-side pallet 12 in the turning member 13 and the tool magazine 28 is turned by the turning member 13 so that the tools T1 to T4 face a spindle 5 disposed on the machining area A side.