Sucker type vacuum fixing clamp

The utility model discloses a suction cup type vacuum fixing clamp which comprises a fixing base, a suction cup is arranged at the upper end of the fixing base, an exhaust pipe is arranged in the suction cup, a supporting rod is arranged on the side face of the fixing base, an adjusting base is connected to the surface of the supporting rod in a sleeved mode, and a limiting block is arranged on the inner wall of the adjusting base. And a fastening bolt is connected to the interior of the adjusting seat. According to the workpiece fixing device, the supporting rod is arranged on the side face of the fixing base, the adjusting base and the fastening bolt are matched, the position of the supporting base can be adjusted along the surface of the supporting rod, therefore, workpieces of different sizes can be supported and fixed, and the stability of the workpieces can be guaranteed; the clamping grooves are formed in the surface of the fixing base and matched with the clamping blocks, the supporting rods can be di