Rotary testing machine for detecting pendulum type grinding wheel impact

The invention belongs to the field of a grinding wheel strength detection device. Aiming at solving the technical problem that the traditional detection device cannot meet the demand of detecting the lateral impact resistance of a grinding wheel, the invention provides a rotary testing machine for detecting the pendulum type grinding wheel impact. The rotary testing machine comprises a rotary machine main body; an electric main shaft is arranged in the middle of the rotary machine main body; a speed measurement sensor is fixed at one end of the electric main shaft, and the other end of the electric main shaft is connected with a mandrel; a rotary cavity is arranged at the periphery of the mandrel; a bearing plate is arranged at the outer side of a door of the rotary cavity in a sliding way; the bearing plate is provided with a pendulum bob, a limiting fixed plate matched with the pendulum bob, and a pendulum bob locking device. The rotary testing machine is a set of comparatively perfect grinding wheel lateral impact resistance testing device, and can be used for detecting the lateral impact resistance of a cymbals-shaped grinding wheel for polishing and a fiber reinforced resin cutting grinding wheel.