A kind of processing method of APC short ferrule

Abstract

The invention discloses a machining treatment method for an APC (Angled Physical Contact) short core insert. The machining treatment method for the APC short core insert comprises the following steps: A, clamping a target core insert to a first grinding disc, and grinding a coupling surface of the target core insert to a small platform without a highest point; B, clamping the core insert of which the coupling surface is ground to a second grinding disc, and repairing the core insert to obtain a coupling surface small platform with a regular edge contour; C, mounting the repaired core insert into a ceramic open sleeve to form a sleeve and core insert combination body; D, clamping the formed sleeve and core insert combination body to a third grinding disc to grind an APC surface to obtain the small platform without the highest point; E, clamping the core insert of which the APC surface is ground to a second grinding disc, and performing secondary repairing to obtain an APC surface small platform with the regular edge counter. According to the machining treatment method provided by the invention, the highest point small platform edge counter straightness of the APC surface and the coupling surface is improved, so that the alignment precision of the APC surface and the coupling surface is high; moreover, the 3D (Three-Dimensional) index performance of the APC surface is improved.

Description

technical field [0001] The invention relates to the field of virtual reality technology, in particular to a processing method for an APC short ferrule. Background technique [0002] With the continuous development of optical fiber communication technology, especially high-speed local area network and optical access network, optical connectors will be more widely used in optical fiber systems. [0003] Optical fiber connector is a device for detachable (movable) connection between optical fiber and optical fiber. It precisely butts the two end faces of optical fiber so that the optical energy output by the transmitting optical fiber can be coupled to the receiving optical fiber to the maximum extent. And to minimize the impact on the system due to its intervention in the optical link, this is the basic requirement of the fiber optic connector. To a certain extent, fiber optic connectors affect the reliability and performance of optical transmission systems. [0004] Accordi...

AI Technical Summary

Problems solved by technology

[0007] The 3D index of the APC short ferrule processed by the above method is poor. The 3D index includes the height of the fiber, the eccentricity of the vertex, the radius and the angle of the spherical surface. The existing processing method combines the coaxiality of the outer wall of the metal part and the assembly of the ferrule and the metal part. The two errors of the coaxiality are introduced into the APC grinding of the ferrule at the same time. The angle and top eccentricity index of the APC grinding will be far lower than that of directly clamping the outer wall of the ferrule with extremely high cylindricity and by clamping the outer wall of the metal part. The method will inevitably affect the coaxiality of the ferrule assembly and the cylindricity of the outer wall of the metal parts.

In addition, there is a corresponding angle (90° or other angles, according to specific requirements) between the angle of the APC surface and the coupling surface. In order to ensure the accuracy of this angle, the straightness of the edge contour of the small platform at the highest point is required to be high enough to be processed directly. The small platform at the highest point is curved and has radians, and the contour line cannot be accurately fitted into a straight line, resulting in an alignment angle error that cannot be guaranteed to be within ±5°

In addition, the existing PC grinding pressure parameters and time parameters for optical sockets cannot be directly applied to APC grinding of short ferrules for optical sockets.

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