Bench drill clamp assembly

The utility model relates to the technical field of clamps, and discloses a bench drill clamp assembly which comprises a T-shaped groove plate, a supporting block, a movable block, a supporting arm, a bolt, a sleeve, a supporting rod and a nut. In the using process, due to the fact that the supporting block and the movable block can rotate relative to each other, the supporting arm can be driven manually to rotate relative to the T-shaped groove plate. In the process that the supporting arm rotates relative to the T-shaped groove plate, due to the fact that the sleeve and the bolt can rotate relative to each other, the supporting rod can be kept in a vertical state all the time under the action of gravity. And when workpieces with different thicknesses are pressed and fixed, the position of the supporting rod does not need to be additionally adjusted. And the clamping device can be tightly attached to the workpiece all the time, so that the workpieces with different thicknesses can be conveniently clamped. 本申