A clamping chuck for dynamic tensile testing of flat material samples on a pendulum impact testing machine

摘要

The clamping chuck for dynamic tensile testing of the flat material samples (5) on a pendulum impact testing machine consists of two structural elements arranged mutually adjustably in a mirror-like manner comprising the clamping nut (1), a pair of clamping the jaws (2, 3) and the clamping screw (4). The clamping nut (1) is provided with the conical inner cavity (11) which leads onto the inner face (101) and which passes into the cylindrical chamber (12) leading onto the outer face (102). The clamping bearing jaw (2) and the claw (3) are formed in the form of truncated half-cones whose taper corresponds to the taper of the inner cavity (11) of the clamping nut (1) and are adapted to clamp the test sample (5) between their adjacent surfaces, where the bearing jaw (2) is adapted both for placement of the end portion of the test sample (5) and also for ensuring the correct positioning of the claw (3) being attached, and also for ensuring contact with the clamping screw (4) in the direction of the longitudinal axis of the clamped test sample (5).