Device for clamping and holding workpieces e.g. wooden plates in woodworking machines, has clamping bar whose cross-sectional portion is opened in downward direction for inserting fixing depositors

摘要

The device has clamping bar (10) whose supporting surface (12) is arranged with suction blocks on which the to-be-clamped workpiece is placed. The clamping bar is provided with shut-off valves for sucking the air. The concrete portion (22) is inserted into the supporting surface of the clamping bar for opening the through openings (26,30). The cross-sectional portion of the clamping bar is opened in downward direction for inserting fixing depositors (28). The sealing plate is provided for sealing three negative pressure chambers.