Accurate grinding tool for cylindrical part

Abstract

The invention discloses an accurate grinding tool for a cylindrical part. The accurate grinding tool comprises a friction barrel matched with the outer diameter of the cylindrical part, and a friction portion is arranged on the inner wall of the friction barrel. The friction barrel matched with the outer diameter of the cylindrical part is used for accurate grinding of the outer surface of the cylindrical part, and the accurate grinding tool is compact in structure, small in size, low in weight, flexible to operate, convenient to carry and capable of effectively making contact with the outer surface of the cylindrical part, so that accurate grinding operation has the characteristics of high efficiency, time and labor saving, good economy and the like; and the outer surface of the cylindrical part can effectively and reliably meet the technical requirements for roundness and smoothness, practicability is high, and the accurate grinding tool is especially suitable for accurate grinding of the cylindrical part arranged in a narrow space.

Description

technical field [0001] The invention relates to a fine grinding tool, in particular to a fine grinding tool for cylindrical parts, which is especially suitable for finishing the outer surface of cylindrical parts (including shaft parts or pipe parts, such as oil and gas well casing hangers) in a narrow space. grinding process. Background technique [0002] Cylindrical parts, including shaft parts and pipe parts, usually involve fine grinding of the outer surface during use, including the removal of dirt and rust, as well as the improvement of roundness and smoothness. This is most evident on cylindrical parts, such as casing hangers used in oil and gas well development. [0003] The casing hanger is used to hang the casing of the oil and gas well, and separate the pressure system between the casings of each layer at the wellhead of the oil and gas well. Usually, after the hanger is seated into the casing head to complete the cementing construction, it will be permanently i...

AI Technical Summary

Problems solved by technology

This fine grinding treatment method not only has problems such as low operating efficiency, long time-consuming, high technical requirements, and high operating costs, but also cannot guarantee that the roundness and smoothness of the polished sealing surface can meet the technical requirements of sealing operations, and it is very easy to be caused by operational errors. As a result, the overall pressure level is reduced, and this type of casing hanger has a large safety hazard in long-term service.

[0005] It can be clearly seen from the above examples that in the prior art, due to the lack of compact, portable and practical fine grinding tooling for cylindrical parts, the operation efficiency is low and time-consuming when performing fine grinding on the outer surface of cylindrical parts. Long, high technical requirements, high operating costs, etc., and it is impossible to guarantee that the roundness and smoothness of the polished outer surface can meet the technical requirements, especially for cylindrical parts arranged in a small space.

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