A fixture and compensation method for avoiding extrusion scratches of sealing rubber rings and retaining rings

Abstract

The invention discloses a fixture for avoiding extrusion scratches of sealing rubber ring retaining rings, which is used for shell parts with related holes and nozzles, and is characterized in that it includes a compensating mandrel, the compensating mandrel The outer diameter of the nozzle matches the inner diameter of the nozzle; the end face of the compensating mandrel extending into the nozzle is an arc-shaped surface consistent with the inner surface of the shell part; the invention also discloses a sealing rubber ring for avoiding The compensation method for extrusion scratches of the retaining ring uses a compensation mandrel whose end surface is set as an arc surface to perform curved surface compensation on the relevant orifice on the inner surface of the shell part. The invention discloses a fixture and compensation method for avoiding extrusion and scratches of sealing rubber rings and retaining rings. The compensation mandrel provided with a curved surface is used to compensate the inner surface of the shell part. The compensation fixture has a simple structure and Low cost; the compensation method is simple, convenient and easy to use, fundamentally eliminates irregular extrusion deformation and scratches of sealing rubber rings and retaining rings, ensures product quality, and reduces aircraft hydraulic system failures.

Description

Technical field[0001]The present invention relates to the technical field of assembly process, and more particularly to a clamp and compensation method for avoiding sealing rubber rms.Background technique[0002]In the aircraft hydraulic system, in order to achieve hydraulic transmission and rotation, the housing parts with the correlation nozzle are combined with the outer loop tank to mount the rubber seal ring and the shaft part of the retaining ring with the outer loop. It implements the sealing function through the inner surface of the housing and the rubber sealing rubber ring and the retaining ring in the shaft ring groove, and the hydraulic transfer function is achieved by the inner hole of the housing related nozzle and the inner hole in the center hole in the center hole. Some housing parts have multiple associated nozzles for hydraulic transmission of different functions,figure 1 For a typical housing with two associated nozzles and a hydraulic transmission that seals the s...

AI Technical Summary

Problems solved by technology

From the installation process, it can be seen that the damaged and scratched rubber rings and retaining rings have passed through nozzle 1 or nozzle 2 on the shell (the rubber ring 3 and retaining ring 4 have passed through nozzle 1 and nozzle 2) , retaining rings 2, 3 and apron 2 pass through nozzle 1), nozzle 1 and nozzle 2 on the casing have related holes with the inner surface of the casing, and there are certain sharp edges or irregular shapes in the relevant parts, resulting in Rubber rings 2, 3 and retaining rings 2, 3, 4 are squeezed or scratched during installation

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