An aircraft landing gear intersection hole making device and method

By utilizing components such as drilling jigs and limiting jigs in the condition of the aircraft as a whole, combined with laser measurement technology, the problem of drilling holes at the landing gear intersections when the aircraft is detached from the assembly fixtures has been solved, achieving high-precision and efficient hole repair and avoiding the costs and risks associated with disassembling the aircraft.

CN120619427BActive Publication Date: 2026-07-24AVIC CHENGFEI COMML AIRCRAFT COMPANY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
AVIC CHENGFEI COMML AIRCRAFT COMPANY
Filing Date
2025-07-10
Publication Date
2026-07-24

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Abstract

The application relates to the technical field of aircraft structural members, in particular to an aircraft landing gear intersection hole drilling device and method, the landing gear comprising a cylinder, a lock ring seat and a wall plate, the device comprising a hole drilling jig, a limiting jig, a positioning assembly and a distance measuring assembly, wherein during the process of measuring the measuring point, the hole drilling jig is rotated to make the measuring axis parallel to the cylinder axis; the limiting structure formed by the two jigs restricts the radial deviation of the drill bit, ensuring the perpendicularity of the hole wall; after the first final hole is completed, the first fixing pin is immediately penetrated through the hole to lock the relative positions of the hole drilling jig, the wall plate and the limiting jig, preventing the reference drift caused by stress release in the subsequent hole drilling, thereby solving the problem that the intersection of the landing gear cannot be drilled when the aircraft is separated from the assembly tooling in the prior art, and ensuring that the hole drilling process of each intersection is independently controlled, and the cumulative error is reduced.
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