Patent ID: 9144889
Filing Date: 2015-09-29
Classification: B25B,B25J

Abstract:
1. A clamping assembly, comprising: a base member having a base portion and an extension portion extending from the base portion, the base member having an aperture extending through both the base portion and the extension portion along a longitudinal axis, the extension portion having first, second, third, and fourth side surfaces and an end surface, the end surface defining first and second guiding grooves that extend substantially parallel to one another and into the extension portion, a plane extending through the base member and passes through both the first and second side surfaces of the extension portion and the longitudinal axis; a first wedge member being slidably disposed in the first guiding groove on the end surface of the extension portion; the first wedge member having a top surface, a bottom surface, and an outer side surface; the first wedge member further having a first wedge groove extending into the outer side surface thereof and further extending from the bottom surface thereof to the top surface thereof; the first wedge groove extending along a first wedge axis that extends at a first acute angle relative to the plane; a second wedge member being slidably disposed in the second guiding groove on the end surface of the extension portion, the second wedge member having a top surface, a bottom surface, and an outer side surface; the second wedge member further having a second wedge groove extending into the outer side surface thereof and further extending from the bottom surface thereof to the top surface thereof; the second wedge groove extending along a second wedge axis that extends at a second acute angle relative to the plane; a wedge coupling member disposed on the top surface of the first wedge member and the top surface of the second wedge member, the wedge coupling member slidably engaging the first and second wedge members such that the wedge coupling member moves along the longitudinal axis away from the end surface when the first wedge member moves in the first guiding groove in a first direction, and the second wedge member moves in the second guiding groove in a second direction, the second direction being in an opposite direction relative to the first direction; a first piston having a tubular body and a cover portion, the cover portion being disposed on and covering an end of the tubular body, the tubular body defining an interior region; a first guide member being coupled to the tubular body within the interior region, the first guide member having a first guide extension portion, the first guide extension portion being slidably received within the first wedge groove of the first wedge member; a second guide member being coupled to the tubular body within the interior region, the second guide member having a second guide extension portion, the second guide extension portion being slidably received within the second wedge groove of the second wedge member; the first piston configured to move in a first longitudinal direction along the longitudinal axis such that the first and second guide extension portions move the first and second wedge members, respectively, in the first and second directions, respectively; and a shaft coupled to the wedge coupling member and extending through the aperture of the base member, the shaft further coupled to a clamping arm.