Piston ring end face grinding automatic feeding device

The invention discloses a piston ring end face grinding automatic feeding device. The piston ring end face grinding automatic feeding device comprises a multi-axis execution mechanism, a feeding unit,a feeding platform, a material rod guide device and a material rod collection trolley, wherein the feeding unit, the feeding platform, the material rod guide device and the material rod collection trolley are arranged in an operation area of the multi-axis execution mechanism; the feeding unit is composed of a material trolley parking clamping mechanism and a transfer material trolley; the feeding platform is connected with a guide mechanism arranged at a feed port of a grinding machine; the tail end of the multi-axis execution mechanism is provided with an automatic gripper with a visional positioning guide device; under guidance of the visional positioning guide device, the automatic gripper takes out a material rod with a string of piston ring workpieces from the transfer material trolley and places the materi