Measurement apparatus for measuring elasticity coefficient of coil spring

摘要

A measurement apparatus includes a workbench, a loading mechanism fixed to the workbench, a deformation measuring mechanism, and a stress meter. The deformation measuring mechanism includes a slide beam, and a displacement meter. The loading mechanism includes a guiding shaft extending through a to-be-tested coil spring. A measuring pole of the stress meter, the sliding beam, and the guiding shaft are coaxial. Opposite ends of the coil spring are respectively abutted the slide beam and the loading mechanism. A measuring pole of the displacement meter is connected to the sliding beam. When the stress meter slides towards the slide beam, the displacement of the detecting pole of the displacement member is equal to a change of a length of the coil spring, and recorded by the displacement meter, and a value of a force applied to the coil spring is recorded by the stress meter.

主权项

1. A measurement apparatus for measuring an elasticity coefficient of a coil spring, comprising:
a workbench comprising a supporting plate; a loading mechanism comprising a guiding shaft fixed to the supporting plate, the guiding shaft comprising a connection portion abutting one of two opposite ends of the coil spring when the coil spring is being measured, and a guiding portion extending in parallel with the supporting plate and through the coil spring; a deformation measuring mechanism comprising a guiding member mounted on the supporting plate, a slide beam slidably connected to the guiding member and coaxial with the guiding shaft, a connecting pole secured to the slide beam, an abutting member fixed to the slide beam and abutting the other end of the coil spring, and a displacement meter comprising a dial plate fixed to the guiding member, and a measure pole telescopingly extending from the dial plate and fixed to the connecting pole, wherein a stretch distance of the measure pole is recorded by the displacement meter and shown on the dial plate; a stress meter slidably mounted on the supporting plate, and comprising a measure pole extending towards and coaxial with the slide beam, wherein a value of a force applied to the measure pole of the stress meter is recorded by and shown on the stress meter; a driving mechanism mounted to the supporting plate and connected to the stress meter to drive the stress meter to slide relative to the supporting plate along an axial direction of the measure pole of the stress meter; and a mounting member mounted to the supporting plate, wherein the loading mechanism further comprises a bottom plate fixed to the mounting member, and a locating member fixed to the bottom plate, the connection portion of the guiding shaft is secured to the locating member.