Abrasive block concentric clamp for diamond press

The grinding block concentric clamp for the diamond press comprises a bottom plate, a connecting plate is fixedly installed at the top end of the bottom plate, the connecting plate is in an octagonal shape, a first fixing groove and a second fixing groove are formed in the top end of the connecting plate, and buckling grooves are formed in one side of the first fixing groove and one side of the second fixing groove. And one ends of the two buckling grooves extend to the outer sides of the two sides of the connecting plate, threaded grooves are formed in the outer sides of the four bevel edges of the connecting plate, threaded rods are installed in the two sets of threaded grooves, and rotary knobs are fixedly installed at one ends of the threaded rods. According to the grinding block concentric clamp, when grinding blocks are fixed, the first clamping blocks and the second clamping blocks of different numbers are placed according to the sizes of the grinding blocks, the grinding blocks are placed between the