Surface finishing instrument for metal parts and using method thereof

Abstract

The invention belongs to the field of aircraft assembly manufacturing, and relates to a surface finishing instrument for metal parts and a using method thereof. The device comprises a finishing material container tank, a finishing material flow regulator, a compressed air pressure regulator, a compressed air pipe joint, a compressed air switch, a straight joint, a spray head, a pressure gauge, a finishing material and compressed air miscible device and a finishing material transfer tube; the finishing material container tank is used for storing the finishing material, the finishing material and compressed air miscible device is used for mixing compressed air and the finishing material according to a prescribed proportion; the finishing material and compressed air miscible device is provided with the compressed air pipe joint, the straight joint, the compressed air pressure regulator, the compressed air switch and the pressure gauge; and the straight joint is used for connecting the spray head. The mechanical structure is precise, the finishing precision is high, the surface quality is good, and the problem of difficulties in partial surface scratching and oxidation caused by transportation and secondary finishing for the surfaces of partial installing scratched parts is completely solved.

Description

technical field [0001] The invention belongs to the field of aircraft assembly and manufacturing, and relates to a surface finishing instrument for metal parts and a use method thereof. Background technique [0002] In the assembly process of aircraft parts, since some precision parts with small structures and small batches and large parts with complex shapes and structures are all cast and forged and heat-treated parts, some of the parts' surfaces, some are extremely difficult during transportation and assembly. It is easy to produce slight scratches, burrs, oxide layers and other residues such as oil stains. These impurities and burrs not only affect the assembly accuracy and life of the parts, but also affect its mechanical strength. Therefore, it is necessary to polish the surface of these parts before assembly to increase its mechanical strength and fatigue resistance. The current conventional method is to first polish the parts in the finishing department, and then tr...

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Problems solved by technology

[0003] Aiming at the problems existing in the prior art, the present invention proposes a surface finishing instrument for metal parts and its use method, which can adapt to various narrow and special working areas, and solve some surface scratches caused by transportation collisions and parts assembly. Many difficult problems such as secondary light decoration

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