Grinding machine workpiece fine adjustment supporting clamp

The utility model discloses a grinding machine workpiece fine adjustment supporting clamp which comprises a base, a lifting seat, a support and a pulley, the lifting seat can be installed on the base in a lifting and position adjusting mode, and a platform and a positioning shaft erected in the middle of the platform are arranged at the upper end of the lifting seat. The center position of the bottom of the support is matched with the positioning shaft in a horizontally-rotating and sleeved mode, at least two sets of wheel carriers are arranged on the support in a left-right symmetry mode, the two sets of wheel carriers are separated along the center line in the front-back direction, and gaps vertically hinged to the pulleys are formed in the wheel carriers. And the pulleys on the two groups of wheel carriers can rotate in the left-right direction and are linearly arranged. The fine adjustment supporting clamp for the grinding machine workpiece can well support and bear the workpiece, counteract the influence