Patent ID: 6224067
Filing Date: 2001-05-01
Classification: B23B,Y10T

Abstract:
A hydromechanical clamp connection apparatus to be mounted in a rotary machine and to hold a shaft of a rotary shaft tool, said hydromechanical clamp comprising:a cone coupling chuck having a machine end for mounting in the rotary machine and, having a tool end opposite the machine end thereof, for releasably holding the shaft of the rotary shaft tool, said chuck has a thin inner sleeve with radial dimensions which can be changed, and having a central axial bore for receiving the shaft of the shaft tool, and adapted for being radially compressed against the shaft of the shaft tool, said chuck having a solid outer sleeve axially displaceable on said inner sleeve, said inner sleeve and said outer sleeve formed with matching cone surfaces of a self locking type which, upon a displacement of said outer sleeve on said inner sleeve provides a radial compression of at least part of said inner sleeve, said inner sleeve and said outer sleeve each having a tool end and a machine end, said chuck having hydraulically actuateable means for providing a displacement of said outer sleeve on said inner sleeve, said hydraulically actuateable means having a first hydraulic pressurization means for mounting and clamp connecting the rotary shaft tool and a second hydraulic pressurization means for releasing the rotary shaft tool, respectively.