DEVICE FOR DEFINITION OF DEVIATIONS AND STIFFNESS PARAMETRES OF HELICAL COMPRESION SPRINGS Russian patent published in 2009 - IPC G01M5/00 

FIELD: mechanics.

SUBSTANCE: device comprises a base and a movable plate connected to each other by two parallel poles with hinges on the ends. A fixed support is set on the base and designed for setting of a tested spring on it with the spring centre line being located in the poles plane; a support which is movable in the longitudinal and transverse directions and designed for the fixation of the second end face of the tested spring is mounted on the rod of an axial loading power drive passing through the plate. The movable support is connected to the spring cross loading drive as well. The device is additionally equipped by a third pole with hinges on the ends which is also connected to the base and the plate and is equally distanced from the above poles; the hinges set on the poles ends and connecting the plate to the base are spherical ones. The device comprises also force sensors and displacement sensors.

EFFECT: expanded functionality, possibility to measure deviations by their value and direction, improved measurement accuracy.

7 dwg