Patent ID: 6302387
Filing Date: 2001-10-16
Classification: B25B

Abstract:
Vacuum hold-down system comprising a supporting base (1) and a modular suction device (4) mountable on a support surface of said supporting base (1), upon which work pieces (5) to be held down can be placed, wherein the support base (1) has shutoff valves (2) through which air suction can be applied for holding down the modular suction device (4) and/or the work piece (5), and wherein the modular suction device (4) has, on its underside (6) contacting the support surface, a seal (7) surrounding at least one shutoff valve (2), thereby forming a closed suction space (8) which can be evacuated through the shutoff valve (2), characterized in that a pressure control valve (49), which communicates with a topside (15) of the modular suction device (4), communicates with said suction space (8) and opens into a hold-down space which is surrounded by a second seal (28).