Patent ID: 6155707
Filing Date: 2000-12-05
Classification: B01F,G01M,G21F

Abstract:
A vibrating table with vertical acceleration for an object having a bottom provided with a planar lower surface, a lateral wall, and a substantially planar upper surface that may present defects in parallelism with respect to said lower surface, said table comprising:a rigid frame comprising a substantially vertical principal axis and a base, and being structured to surround said object,a damping device isolating said base from ground,a vertical oscillation device connected to said frame so as to entrain said table in a vibratory movement, anda clamping device comprising:a substantially horizontal bearing surface disposed generally perpendicularly to the principal axis of the frame and connected to said frame, said upper surface of said object being intended to bear against said bearing surface,a supporting plate for supporting said object beneath the bottom of the object, said supporting plate being vertically mobile with respect to said frame in response to elevation means and being structured to cooperate with said bearing surface to form a vise that clamp said object in a vertical direction to block the object in a clamped position, in which the upper surface of said object is in contact with said bearing surface at at least three points,blocking and clamping means ensuring hold of said object in a clamped position during a vibratory phase of said vibrating table, andthe elevation means comprising a pushing jack having a first end connected to said base and a second end connected to said supporting plate, each of said first and second ends having a ball joint allowing orientation of said supporting plate during its rise and protection of the pushing jack during the vibratory phase of the vibrating table.