Patent ID: 8955733
Filing Date: 2015-02-17
Classification: B23K,F16L

Abstract:
1. A clamping module comprising: an annular central module body having a central axis, axially extending driving head receiving openings located at each end of the module body and a pair of radially extending bore sets, each bore set comprising circumferentially spaced, radially extending bores, and said bore sets being axially spaced along the axis of the module body; a pair of driving heads disposed in the central driving head receiving openings in a manner enabling axial reciprocal movement therein; clamping feet devices disposed in the bores of each bore set for reciprocal movement therein; and bell crank linkages connected to the module body, the driving heads and to the clamping feet devices by fulcrum pins, driving connections and driven connections, respectively, such that axial reciprocal movement of the driving heads causes the bell crank linkages to pivot about their respective fulcrum pins by the driving connections and to convert the axial movement of the driving connections to radial movement of the clamping feet devices in their respective bores by the driven connections.