Patent ID: 9592579
Date: 2017-03-14
CPC Classifications: B23B,B23Q,Y10T

Claim:
1. A clamping fixture comprising a chuck and for locking thereto a workpiece pallet, said chuck comprising: first centering members in the form of centering spigots; said workpiece pallet provided with a main body and removably secured thereto a centering disk into which second centering members in the form of centering openings are defined; said centering spigots of said chuck configured to mate in said centering openings of the workpiece pallet such that the pallet is alignable relative to the chuck in the X-direction and Y-direction; at the side of the centering spigots a sealing member assembly including a sealing member; and a sealing disk removably secured between the centering disk and the main body of the workpiece pallet, said sealing disk at least radially co-extensive with said centering disk and including a portion which overhangs the centering disk radially outboard of the centering disk, said portion of the sealing disk overhanging the centering disk such that said portion sealingly comes into contact with said sealing member of the sealing member assembly when the workpiece pallet is securely clamped in place.