Patent ID: 8240454

Claim:
A machining facility having a sub-pallet for a workpiece to be mounted thereon and conveying the sub-pallet between units provided with sub-pallet carrying parts, said machining facility comprising: at least one machine tool having a pallet changer for changing main pallets; a plurality of sub-pallets for a workpiece to be mounted thereon, formed to be able to be mounted on a sub-pallet carrying part provided on said main pallet; a setup station for mounting and dismounting a workpiece on and from said sub-pallet, said setup station having a sub-pallet carrying part for carrying said sub-pallet thereon; a sub-pallet stocker having a sub-pallet carrying part for carrying said sub-pallet thereon and configured to stock said sub-pallet at a slant so that chips and coolant solution will drop off when said sub-pallet is carried on said sub-pallet stocker; and a sub-pallet conveyor system for conveying said sub-pallet, said sub-pallet conveyor system having a hand for gripping said sub-pallet and configured to include said sub-pallet carrying parts of said machine tool, said setup station and said sub-pallet stocker in a workable area thereof, wherein said sub-pallet is used to convey and machine a workpiece.