Support post-processing device

The utility model discloses a brace post-processing device which comprises a support, a first through groove is formed in the support, a miniature grinding machine is installed in the middle of the first through groove, two transmission shafts are symmetrically arranged on the two sides of the interior of the first through groove, and a rotary disc is installed at one end of each transmission shaft. A plurality of connecting cylinders are uniformly mounted on the outer side wall of the rotating disc, first springs are mounted in the connecting cylinders, connecting rods are slidably connected into the connecting cylinders, after an arc-shaped plate is extruded due to the radian of the brace body, the arc-shaped plate can drive the connecting rods to retract, and when extrusion is lost, the arc-shaped plate can reset; therefore, it can be guaranteed that the arc-shaped plate is attached to the brace body all the time, the brace body is conveniently driven to conduct movable grinding work, the situation that gr