Slidable supporting device used for optical fiber preform cutting apparatus

Abstract

The invention provides a slidable supporting device used for an optical fiber preform cutting apparatus. The slidable supporting device comprises a frame, a positioning mechanism and sliding mechanisms mounted on the frame, wherein the positioning mechanism is mounted on a slidable supporting platform, and the sliding mechanisms are symmetrically arranged at the left and right ends of the slidable supporting platform; each sliding mechanism comprises a guide rail and two positioning rollers arranged on a same roller support; the guide rail is mounted on the frame through a guide rail supporting seat; two positioning rollers are arranged above and below the guide rail in a correspondence way and are slidable on the guide rail along an axial direction; the slidable supporting platform is mounted on the upper end of the roller support; and the positioning mechanism comprises a supporting assembly and a compressing assembly. According to the invention, the slidable supporting platform can steadily and smoothly move back and forth along the guide rail, so the quality of a cutting section is guaranteed; and through starting of a cylinder, the compressing assembly is driven to compress a an optical fiber preform, six degrees of freedom of the space of the compressing assembly are confined, so movement or rotation of the preform caused by cutting force during cutting is avoided.

Description

technical field [0001] The invention belongs to the technical field of optical fiber preform manufacturing and research and development, and in particular relates to a sliding support device for optical fiber preform cutting equipment. Background technique [0002] Optical fiber preform is the core raw material for manufacturing quartz series optical fibers. The glass special prefabricated rod used for drawing optical fiber (filament) is mainly divided into four types: OVD (out-of-rod chemical vapor deposition method), VAD (axial vapor phase deposition method), MCVD (modified chemical vapor deposition method), and MCVD (modified chemical vapor deposition method). phase deposition method), PCVD (plasma activated chemical vapor deposition method), the research and development and manufacture of these optical fiber preform production equipment are mainly concentrated in the United States and Japan, and domestic optical fiber manufacturers have gradually begun to increase the re...

AI Technical Summary

Problems solved by technology

[0005] The existing problems in the cutting process of the preform are mainly that the cutting section is prone to brittle fracture, the section is uneven, the flatness is not high, and cracks appear around the cutting surface. After analysis, it is found that the main reason for this phenomenon is: prefabricated During the cutting process of the rod, the 6 degrees of freedom in space are not completely restricted, and there is always a degree of freedom in the horizontal plane and a degree of freedom in the direction of movement. In this way, when the cutting force is applied, the preform will inevitably move and rotate. It itself is a brittle material, and tiny cracks are easy to expand, resulting in a series of cutting defects

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