Cleaning tool and cleaning method for inner conical wall face of helicopter closing-in pull rod pipe

Abstract

The invention belongs to the technical field of sheet metal machining, and particularly relates to a cleaning tool and method for the inner conical wall face of a helicopter closing-in pull rod pipe. The tool is composed of a handle, a tubular guide rail, a sliding block, a supporting rod and a grinding piece, the handle is arranged in the tubular guide rail, and the sliding block is arranged at the front end of the handle; one end of the polishing sheet is rotationally connected with the tubular guide rail, and the other end is a free end; the sliding block is connected with the middle section of the grinding piece through the supporting rod, when the sliding block slides in the tubular guide rail, the field angle between the grinding piece and the tubular guide rail can be changed, and therefore the grinding and cleaning device adapts to grinding and cleaning of conical wall faces in different helicopter closing-in pull rods. The problem that a lubricant on the inner conical wall surface of the helicopter closing-in pull rod pipe is sintered and cannot be cleaned is solved; operation is convenient, and cleaning of closing-in pull rods with inner cavities at different angles can be achieved; the cleaning effect is excellent; and abrasive paper can be pasted on the surface of the grinding piece for polishing.

Description

technical field [0001] The invention belongs to the technical field of sheet metal processing, and in particular relates to a cleaning tool and a cleaning method for a tapered wall surface inside a tie rod tube of a helicopter. Background technique [0002] HB6475 helicopter closing rod (such as figure 1 (shown) The forming principle is to use the aluminum alloy pipe to plastically deform at a specific temperature in the necking mold cavity. 30% of. This process requires lubricating the necked area of ​​the tubing with a graphite lubricant. Due to the high molding temperature, the lubricant will sinter and solidify and adhere to the tapered wall surface in the closing area. Ordinary polishing tools cannot clean this area, which will eventually affect the internal and external surface treatment and appearance quality of the tie rod. The products after lubricant sintering are mostly neutral products, insoluble in water or other conventional cleaning agents, and are difficul...

AI Technical Summary

Problems solved by technology

When mechanical cleaning is used, since the minimum diameter of the shrinkage can reach 10mm, if an ordinary brush is used, the brush head cannot directly enter the shrinkage. The brush head cannot be in contact with the conical surface, and cannot polish the conical surface

Use a high-pressure water gun to wash the cone surface. Because the lubricant is severely sintered on the inner wall and has a strong adhesion to the cone surface, it is difficult to clean it completely with a high-pressure water gun.

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