Device for compression test of wave spring

The invention relates to a device for a compression test of a wave spring. The device comprises a shell, a driving motor, a rotating shaft, an upper cam and a lower cam; the shell comprises an upper end cover and a lower end cover; the upper end cover is fixedly connected to the lower end cover; a receding hole reserved in the upper end cover and a receding groove reserved in the lower end cover are used for installing the rotating shaft, the upper cam and the lower cam; the bottom end of the rotating shaft is supported at the groove bottom of the receding groove; the upper end of the rotating shaft extends to the upper end cover and is driven by the driving motor; the upper cam is fixedly installed on the upper portion of the rotating shaft; the lower cam is located below the upper cam and hollowly sleeves the rotating shaft; and a spring is placed between the lower end face of the lower cam and the receding groove; a plurality of teeth are circumferentially arranged on the lower end surface of the upper cam