Machining tool and machining method for embedded sealing ring

Abstract

The invention relates to an embedded sealing ring machining technology, in particular to a machining tool and a machining method for an embedded sealing ring. The machining tool and the machining method for the embedded sealing ring are used for solving the problems that in the existing embedded sealing ring press-fitting technology, graphite is locally trimmed and even fractured, or the design requirement cannot be met due to the fact that the performance of a metal material is changed, and meanwhile, the surface oxidation corrosion of a metal ring seat is accelerated, so that the sealing reliability of the end face is reduced; and an existing axial clamping machining tool is insufficient in size precision and form and location tolerance precision, low in product percent of pass and poor in sealing reliability of the end face. The machining tool for the embedded sealing ring comprises a clamp base, an axial positioning device and a radial positioning device. The machining tool has the radial clearance compensation function and the axial positioning and clamping function, and the size precision and the form and location tolerance precision of the embedded sealing ring can be remarkably improved. Meanwhile, the invention further provides a machining method of the embedded sealing ring.

Description

technical field [0001] The invention relates to a processing technology of a mosaic sealing ring, in particular to a processing tool and a processing method of a mosaic sealing ring. Background technique [0002] At present, the static ring of the liquid rocket engine end face seal mostly adopts a mosaic seal ring structure, which usually uses graphite material as the non-metallic seal ring piece, and at the same time uses metal materials such as S-07 and 4J31 as the metal ring seat. The force generated by radial deformation during interference fit makes the non-metallic sealing ring and the metal ring seat tightly combined. The mosaic sealing ring structure can not only ensure good centering and effectively transmit torque, but also meet the high-reliability requirements of high-frequency impact and vibration sealing, and has the advantages of saving precious materials, reducing costs, simple structure and easy processing and manufacturing, etc. Widely used in aviation, ae...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to solve the phenomenon of partial trimming or even fracturing of graphite in the existing mosaic sealing ring press-fitting technology, or the change in the properties of metal materials that cannot meet the design requirements, and at the same time accelerate the oxidation and corrosion of the surface of the metal ring seat so that In order to reduce the shortcomings of the reliability of the end face seal, and the existing axial clamping processing tooling has insufficient dimensional accuracy and shape and position tolerance accuracy, low product qualification rate and poor reliability of the end face seal, a mosaic seal is provided. Ring processing tooling and processing method

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