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Processing method of glass rod

A processing method and technology of glass rods, which are applied in metal processing equipment, manufacturing tools, grinding tools, etc., can solve problems such as increased processing difficulty, cylindrical surface roughness not meeting the requirements, and large gaps in requirements, etc., to achieve effectiveness and The effect of high reliability

Active Publication Date: 2021-12-21
CDGM OPTICAL GLASS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Glass rods with smaller diameters and shorter lengths processed by existing processing methods can usually meet the accuracy requirements, but as the length and diameter of glass rods increase, the processing difficulty increases geometrically. Therefore, using existing processing methods When processing long-sized and large-diameter glass rods with a diameter of 30-50mm and a length of 600-1200mm, the roundness of the processed product can only be controlled at about 0.3mm, which is far from the requirement of roundness ±0.05mm; At the same time, the roughness of the cylindrical surface of the processed product cannot meet the requirements, and the end surface can only be processed into an opaque rough surface, and the intrinsic quality of the product cannot be detected through the end surface

Method used

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  • Processing method of glass rod

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Comparison scheme
Effect test

Embodiment 1

[0056] Processing a certain grade of H-ZFXX optical glass rod, the performance of this glass rod is a product with less hardness and softer texture among optical glass materials. The specification of the glass rod blank before processing is 655mm×Φ42mm. The processing process is as follows:

[0057] End face grinding: clamp the glass rod blank produced by smelting on the end face grinder, and grind the two end faces of the glass rod blank so that the two end faces of the glass rod blank are perpendicular to its cylindrical surface; the grinding wheel used in the end face grinder It is a diamond flat grinding wheel with a diamond concentration of 100%, a particle size of 80#, and a diameter of Φ250mm;

[0058]End beveling: clamp the end-ground glass rod blank on the beveling machine, and grind and bevel the two end faces of the glass rod blank, so that the end face after beveling is compatible with the clamping tool of the cylindrical grinder; The beveling tool used by the beve...

Embodiment 2

[0068] Processing a brand of H-FX optical glass rod, the performance of the glass rod is relatively hard and hard in the optical glass material, the specification of the glass rod before processing is 1000mm×Φ34mm, the processing process is as follows:

[0069] End face grinding: clamp the glass rod blank produced by smelting on the end face grinder, and grind the two end faces of the glass rod blank so that the two end faces of the glass rod blank are perpendicular to its cylindrical surface; the grinding wheel used in the end face grinder It is a diamond flat grinding wheel with a diamond concentration of 100%, a particle size of 60#, and a diameter of Φ250mm;

[0070] End beveling: clamp the end-ground glass rod blank on the beveling machine, and grind and bevel the two end faces of the glass rod blank, so that the end face after beveling is compatible with the clamping tool of the cylindrical grinder; The beveling tool used by the beveling machine is a bowl-shaped tooling ...

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Abstract

The invention belongs to the technical field of glass processing, and specifically discloses a glass rod processing method, aiming at improving the processing precision of long-sized and large-diameter glass rods. The glass rod processing method selects appropriate processing equipment according to the performance and specifications of the glass rod to be processed to perform end face grinding, end face chamfering, rough grinding of the outer circle, fine grinding of the outer circle, fine grinding of the cylindrical surface, and cylindrical surface of the glass rod blank. Polishing, fine grinding end face, end face polishing and other processes are processed, and the process parameters such as processing time and processing volume of each process are effectively controlled to ensure that the roundness of long-sized and large-diameter glass rods can reach ±0.05mm, and the end face The roughness of the cylinder can reach more than 0.025μm, and the roughness of the cylindrical surface can reach more than 0.06μm, which greatly improves the processing accuracy of long-sized and large-diameter glass rods, and has high effectiveness and reliability.

Description

technical field [0001] The invention belongs to the technical field of glass processing, and in particular relates to a processing method of a glass rod. Background technique [0002] With the continuous change of the optical terminal market, the use of optical glass materials is more diversified, and the shape of optical glass is gradually transformed from the previous single strip form to various forms. Optical glass rods are one of them. Glass rods are favored by the market for their high material utilization. [0003] At present, in the production process of optical glass rods, it is necessary to finish the glass rods produced by one melting, so that the straightness, roundness, roughness of the cylindrical surface and the end surface of the glass rods can meet the precision requirements, so that they can be used for secondary rod drawing Or drawn fiber optic products. Glass rods with smaller diameters and shorter lengths processed by existing processing methods can us...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24B1/00B24B37/27B24B37/11B24B29/08B24B41/04
CPCB24B1/00B24B37/27B24B37/11B24B29/08B24B41/04
Inventor 李晓辉盛卫中吴缙伟候瑞许涛何光
Owner CDGM OPTICAL GLASS
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