Quick method for removing burrs on the inner wall of pipe fittings

Abstract

The invention discloses a rapid removing method for burrs on the inner wall of a pipe. A screw and a center shaft relatively move by rotating the screw according to the specific size of the inner diameter of the steel pipe, a connecting rod drives a check block to rotate along with the connecting rod while moving in a scallop hole, it is achieved that the intervals between the check block and cutting pieces are increased or reduced, the positions of the multiple cutting pieces are forced to be changed, in other words, the portions, stretching outwards through adjusting holes, of the cutting pieces are increased or reduced, the size of an annular region formed when cutting points of the multiple cutting pieces move is matched with the inner diameter of the steel pipe, the center shaft is driven by external driving equipment to rotate, the cutting pieces located on the center shaft rotate, and dirt on the inner wall of the steel pipe starts to be removed. After a barrel body rotates by multiple circles, the protruding height of the dirt on the inner wall of the steel pipe is reduced, the screw is rotated again, the portions, stretching outwards, of the cutting pieces are increased to increase the cleaning radius of the cutting pieces, secondary cleaning of the inner wall of the steel pipe is achieved, and then the dirt is cleaned away completely.

Description

technical field [0001] The invention relates to the field of cleaning dirt on the inner wall of pipe fittings, in particular to a method for quickly removing burrs on the inner wall of pipe fittings. Background technique [0002] After the steel pipe is partially welded, the weld seam is directly exposed to the air. Due to the difference between the air temperature and the temperature of the weld seam itself, the weld seam will directly change from high temperature to low temperature. The strength of the steel pipe reduces the stability of the steel pipe. In severe cases, it will directly cause the weld seam of the steel pipe to be de-welded; and a certain amount of burrs will be generated on the inside and outside of the steel pipe near the weld seam during welding, so that the flow rate of the fluid in the steel pipe will decrease when the steel pipe is in use. Moreover, the protrusions at the weld seam are also easily corroded, which leads to a decrease in the overall str...

AI Technical Summary

Problems solved by technology

[0002] After the steel pipe is partially welded, the weld seam is directly exposed to the air. Due to the difference between the air temperature and the temperature of the weld seam itself, the weld seam will directly change from high temperature to low temperature. The strength of the steel pipe reduces the stability of the steel pipe. In severe cases, it will directly cause the weld seam of the steel pipe to be de-welded; and a certain amount of burrs will be generated on the inside and outside of the steel pipe near the weld seam during welding, so that the flow rate of the fluid in the steel pipe will decrease when the steel pipe is in use. Moreover, the protrusions at the weld seam are also easily corroded, which leads to a decrease in the overall strength of the weld seam and reduces the service life of the steel pipe; traditional internal burr removal equipment mainly focuses on the solder residue at the weld seam and the periphery of the weld seam and the raised However, the solder residue and protrusions scattered to other parts of the inner wall of the steel pipe during welding are not cleaned thoroughly

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