Precise filtering system for metal grinding fluid

The utility model discloses a precise filtering system for metal grinding fluid, which belongs to the field of metal grinding fluid and comprises a processing box, a filter plate is arranged in the processing box, one end of the filter plate is hinged to the inner box wall of one side of the processing box, a feeding pipe is mounted at the box top of the processing box, a storage box is mounted at the box bottom in the processing box, and two guide plates are symmetrically connected to the lower end of the filter plate. The other end of the guide plate is arranged above the storage box, a fixing plate is connected to the outer box wall of one side of the processing box, a sliding groove is formed in the upper end of the fixing plate, and a sliding block is connected into the sliding groove in the fixing plate in a sliding mode. The defects in the prior art are overcome, impurities on the filter plate are automatically cleaned through mutual cooperation of the processing box, the filter plate, the collecting b