Importance

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Abstract

A clamping or chucking tool for clamping a test sample in a testing machine has a clamping housing for applying a wedging action to the sample with the aid of one or two clamping jaws that are activated by an operating member that is inserted into the clamping housing and axially displaceable in the clamping housing. The clamping jaws are slidingly guided in a V-groove of the operating member but are stationary in the axial direction of the clamping housing, while the operating member is movable axially relative to the clamping housing for imparting to the clamping jaws a radial movement component perpendicularly to the longitudinal axis of the test sample. Lateral guide arms engage respective guide grooves in the clamping jaws to hold the clamping jaws against axial movement while permitting the radial movement. The clamping housing and the operating member are provided with at least one lateral opening for a rapid insertion of the test sample laterally into the clamping housing. This type of construction provides a chucking tool for holding test samples that may be exposed to tension loads, or to compression loads and/or to torque loads.

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First Claim