Closed-loop control type micro metallographic-phase flat-grinding machine

The invention discloses a closed-loop control type micro metallographic-phase flat-grinding machine. A disc type grinding mechanism and a control system are installed on the left part of a machine frame, and a workpiece sliding mechanism is installed on a right-side machine frame of a grinding wheel disc of the disc type grinding mechanism and used for fixing a workpiece and driving the workpieceto translate front and back and left and right. A circulating water spraying system comprises a water tank and a water spraying mechanism, and the water spraying mechanism is installed on the right-side machine frame of the grinding wheel disc and communicates with the water tank below the machine frame. The water spraying mechanism and the grinding wheel disc are arranged in a cover plate in a covering mode, the cover plate supports the machine frame, the water spraying mechanism controls water spraying to flow back to the water tank through the cover plate, and the control system is electrically connected with the d