There is provided a flexible manufacturing system that can reliably place a workpiece that isn't defective piece in a state where the workpiece will be machined again. After a pallet is conveyed to a standby position and before machining of the workpiece attached to the pallet is started, controllers determines whether machining of the workpiece with a corresponding machining device is possible. When it is determined that machining is possible, the controller starts machining with the machining device. When it is determined that machining is impossible, the controller make a conveyor convey the pallet from the standby position to a pallet storage room, and stores the machining status information on the conveyed pallet as the machining-waiting state.

A technique appropriately controls transfer order of a pallet. A pallet transfer system includes a transfer device, a pallet storage, a work station, a machine tool, and a control device. The control device transfers a second pallet from the work station to the pallet storage when the machining of the workpiece attached to a first pallet is completed in a state where the first pallet is in the machine tool and the second pallet is in the work station, and the control device transfers the first pallet from the machine tool to the work station after completion of the transfer of the second pallet from the work station to the pallet storage, or in parallel with the transfer of the second pallet from the work station to the pallet storage.

A manufacturing system is proposed, said manufacturing system having a plurality of machine tools for performing chip-forming working operations on workpieces and comprising a plurality of work sequence devices, each of which comprises at least one machine tool, wherein the work sequence devices are sequentially arranged and different chip-forming workpiece working operations are performed in different work sequence devices, and comprising an automated transport device for transporting workpieces within and between work sequence devices, wherein at least one branch is provided in which a plurality of work sequence devices are arranged, wherein devices for non-chip forming workpiece treatment are arranged outside of the at least one branch.

A manufacturing system is proposed, said manufacturing system having a plurality of machine tools for performing chip-forming working operations on workpieces and comprising a plurality of work sequence devices, each of which comprises at least one machine tool, wherein the work sequence devices are sequentially arranged and different chip-forming workpiece working operations are performed in different work sequence devices, and comprising an automated transport device for transporting workpieces within and between work sequence devices, wherein at least one branch is provided in which a plurality of work sequence devices are arranged, wherein devices for non-chip forming workpiece treatment are arranged outside of the at least one branch.

A manufacturing system is proposed, said manufacturing system having a plurality of machine tools for performing chip-forming working operations on workpieces and comprising a plurality of work sequence devices, each of which comprises at least one machine tool, wherein the work sequence devices are sequentially arranged and different chip-forming workpiece working operations are performed in different work sequence devices, and comprising an automated transport device for transporting workpieces within and between work sequence devices, wherein connected to the automated transport device is a central device to which workpieces are capable of being delivered from work sequence devices via the automated transport device.

A manufacturing system is proposed, said manufacturing system having a plurality of machine tools for performing chip-forming working operations on workpieces and comprising a plurality of work sequence devices, each of which comprises at least one machine tool, wherein the work sequence devices are sequentially arranged and different chip-forming workpiece working operations are performed in different work sequence devices, and comprising an automated transport device for transporting workpieces within and between work sequence devices, wherein connected to the automated transport device is a central device to which workpieces are capable of being delivered from work sequence devices via the automated transport device.