Automatic drilling equipment for circuit board

The utility model relates to circuit board automatic drilling equipment which comprises a fixing plate, the top end of the fixing plate is fixedly connected with an installation box, the two sides of the inner wall of the fixing plate are fixedly connected with fixing rods, one side of each fixing rod is provided with a fan, and the bottom end of an air outlet of each fan is fixedly connected with an air outlet frame. An air inlet frame is fixedly connected to the top end of the fan air inlet, a mounting plate is fixedly connected to the top end of the mounting box, a mounting opening is formed in the top end of the mounting plate, sliding grooves are formed in the two sides of the inner wall of the mounting opening, sliding blocks are slidably connected to the interiors of the sliding grooves, and connecting rods are fixedly connected to one sides of the sliding blocks; a connecting block is arranged on the outer surface of the connecting rod, and a mounting block is fixedly connected to one side of the conn