Narrow and small space drilling device

The invention discloses a narrow space drilling device, and relates to the technical field of aerospace drilling, the narrow space drilling device comprises a transmission support, the left side of the transmission support is fixedly provided with a main shaft, the middle of the transmission support is provided with a clamping base, the upper end of the clamping base is provided with a gear, and the front end of the transmission support is fixedly provided with a rack; and the gear is meshed with the rack. Firstly, the narrow space drilling system is placed at the position needing to be machined, the clamping base and the clamping block clamp a workpiece, then the main shaft is started, the gear and the rack are in combined transmission to conduct feeding motion, after drilling is completed, the main shaft is withdrawn, the feeding direction is ingeniously changed through the gear and the rack, the space is utilized to the maximum extent, and the machining efficiency is improved. The equipment size is reduced