Precision surface grinding machine capable of stably clamping bulging die accessories

The precise surface grinding machine comprises a grinding machine body and a clamping block, a grinding groove is formed in the top of the grinding machine body, through sliding grooves are formed in the front face and the back face of the grinding groove, a connecting rotating rod is installed in the front sliding groove in a sliding mode, and a clamping block is installed in the clamping block. The front end of the connecting rotating rod is in threaded connection with a driving motor, a connecting rod is slidably installed in the rear sliding groove, clamping blocks are installed at the front end of the connecting rod and the rear end of the connecting rotating rod, and a vertical cabinet is installed at the top of the back face of the grinding machine body. The driving motor, the connecting rotating rod, the connecting rod, the shaft disc and the threaded sleeve are installed, the driving motor achieves corresponding overturning type grinding treatment, and due to the existence of the shaft disc, the conn