Quick clamping device for mechanical manufacturing

The utility model discloses a quick clamping device for mechanical manufacturing, which belongs to the field of clamping devices and comprises a device main body, a screw rod is mounted on one side of the inner wall of the device main body through a bearing, one end of the screw rod is in transmission connection with a servo motor, a pair of sliding blocks is arranged on the outer side of the screw rod, and the sliding blocks are arranged on the outer side of the screw rod. The pair of sliding blocks are connected to the outer side of the lead screw in a sleeving mode and are in threaded connection with the outer side of the lead screw, connecting rods are fixedly installed on the outer walls of the pair of sliding blocks, one ends of the two connecting rods extend to the outer side of the device body through the movable grooves, and connecting plates are fixedly installed at one ends of the two connecting rods; and rotating columns are arranged on the sides, close to each other, of the two connecting plates,