Linear guide rail of double-shaft precision sliding table air cylinder

The utility model discloses a double-shaft type precision sliding table air cylinder linear guide rail which comprises a sliding seat, a sliding groove is formed in the top wall of the sliding seat, a sliding block is connected in the sliding groove in a sliding mode, two matching grooves are symmetrically formed in the bottom wall of the sliding block, and idler wheels are arranged in the two matching grooves. Two guide blocks are symmetrically welded to the sliding block, two guide grooves are symmetrically formed in the top wall of the sliding seat, the guide blocks are slidably connected into the guide grooves, a cleaning device and a limiting device are arranged on the sliding seat, and the cleaning device comprises two through grooves; the two through grooves are symmetrically formed in the side wall of the sliding base and connected with the sliding groove in a penetrating mode. Through the arrangement of the cleaning bristles and the guide grooves, the surfaces of the rollers are cleaned through the c