Tool and method for polishing inner hole of slender precision thin-walled aluminum alloy pipe

Abstract

The invention relates to a slender precision thin-wall aluminum alloy pipe inner hole polishing tool and method, belonging to the technical field of pipe inner hole polishing. It includes a grinding head assembly (1), a connecting head (2), a sealing head (3), a protective rubber ring (4), a grinding rod (5), and a liquid valve (6); the invention drives the pipe to rotate through a driving mechanism, and the grinding The head assembly (1) rotates and feeds to polish and grind the inner hole of the pipe. At the same time, coolant is introduced from the liquid valve (6), the inner hole of the grinding rod (5) and the water outlet of the connector (2) to lubricate and clean, to remove grinding metal shavings and particles, and to replace the corresponding particle size according to the required roughness. Sandpaper can meet the required surface technical requirements, solve the problem of inner hole polishing of slender precision thin-walled aluminum alloy pipes, and has good manufacturability and stable polishing quality.

Description

technical field [0001] The invention relates to a slender precision thin-wall aluminum alloy pipe inner hole polishing tool and method, belonging to the technical field of pipe inner hole polishing. Background technique [0002] Slender and thin-walled precision aluminum alloy pipes are mainly used for aerospace structural parts and airborne products due to their high specific strength. However, the processing accuracy, surface quality, and flaw detection level of the pipe are strictly required, especially the quality of the inner hole cannot be guaranteed, which affects the surface quality and flaw detection of the pipe, and the product qualification rate is extremely low. The aluminum alloy pipe is formed by deformation processing. The ellipticity of the pipe is large, and the deviation of the wall thickness is strict. The traditional mechanical honing method will cause the ellipticity to be corrected, resulting in unqualified wall thickness; The grinding effect cannot me...

AI Technical Summary

Problems solved by technology

However, the processing accuracy, surface quality, and flaw detection level of the pipe are strictly required, especially the quality of the inner hole cannot be guaranteed, which affects the surface quality and flaw detection of the pipe, and the product qualification rate is extremely low.

The aluminum alloy pipe is formed by deformation processing. The ellipticity of the pipe is large, and the deviation of the wall thickness is strict. The traditional mechanical honing method will cause the ellipticity to be corrected, resulting in unqualified wall thickness; The grinding effect does not meet the technical requirements

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