A device for automatically removing burrs from a wheel riser, comprising a frame, a support plate, lower guide rails, a left sliding plate, a right sliding plate, a servo motor, a shaft, a clamping cylinder, a left burr tool, a right burr tool, a feed gear rack structure, a left sliding block, a right sliding block, two guide pillars, a feed cylinder, a cylinder support plate, a movable support plate, a distance adjusting cylinder, wherein the support plate is fixed on the frame, the lower guide rails are mounted on the support plate, the clamping cylinder is connected with the left sliding plate, the left sliding block is connected with the right sliding block by the feed gear rack structure, the left burr tool and the right burr tool are respectively fixed on the left sliding block and the right sliding block, characterized in that the device further comprises a clamping wheel, a clamping gear rack structure, upper guide rails, ranging sensors, the left sliding plate being connected with the right sliding plate by the clamping gear rack structure, the servo motor is connected with the clamping wheel through the shaft, when the clamping cylinder drives the left sliding plate to move, the right sliding plate moves synchronously with the left sliding plate under the action of the clamping gear rack structure to control the clamping wheel to center and clamp a wheel, wherein the servo motor is mounted on the left sliding plate and controls the rotation of the clamping wheel, so that the wheel can rotate while being clamped, wherein the two guide pillars are bilaterally symmetrically mounted at the upper part of the frame, the feed cylinder is mounted in the upper center of the frame, the output end of the feed cylinder is connected to the movable support plate, wherein the upper guide rails are mounted on the movable support plate, the ranging sensors are respectively mounted on the left burr tool and the right burr tool, the cylinder support plate is fixed on the movable support plate, wherein the distance adjusting cylinder is mounted on the cylinder support plate, and the output end of the distance adjusting cylinder is connected to the right sliding block. the support plate is fixed on the frame, the lower guide rails are mounted on the support plate, the clamping cylinder is connected with the left sliding plate, the left sliding block is connected with the right sliding block by the feed gear rack structure, the left burr tool and the right burr tool are respectively fixed on the left sliding block and the right sliding block, characterized in that the device further comprises a clamping wheel, a clamping gear rack structure, upper guide rails, ranging sensors, the left sliding plate being connected with the right sliding plate by the clamping gear rack structure, the servo motor is connected with the clamping wheel through the shaft, when the clamping cylinder drives the left sliding plate to move, the right sliding plate moves synchronously with the left sliding plate under the action of the clamping gear rack structure to control the clamping wheel to center and clamp a wheel, wherein the servo motor is mounted on the left sliding plate and controls the rotation of the clamping wheel, so that the wheel can rotate while being clamped, wherein the two guide pillars are bilaterally symmetrically mounted at the upper part of the frame, the feed cylinder is mounted in the upper center of the frame, the output end of the feed cylinder is connected to the movable support plate, wherein the upper guide rails are mounted on the movable support plate, the ranging sensors are respectively mounted on the left burr tool and the right burr tool, the cylinder support plate is fixed on the movable support plate, wherein the distance adjusting cylinder is mounted on the cylinder support plate, and the output end of the distance adjusting cylinder is connected to the right sliding block.