回转式光纤预制棒磁力抛光机结构设计与分析

Structural Design and Analysis of Magnetic Polishing Machine for Rotary Optical Fiber Preform

光纤预制棒的抛光效果直接影响光纤的性能及质量。针对光纤预制棒在加工需求,结合磁力抛光原理,提出了旋转磁场的设计方法及实施结构;采用“工件固定磁场旋转”的技术方案,设计了一种回转式磁力抛光机。此外,结合Maxwell软件对抛光头磁场进行模拟仿真,探究了旋转磁场参数与磁场力的关系。研究结果表明:所提出的回转式光纤预制棒磁力抛光机能够满足抛光需求;旋转磁场参数影响磁场力,在模拟仿真条件下,当衔铁的高度大于20 mm时,随着电流强度的增加,磁场力会逐渐增加。

The polishing effect of the optical fiber preform directly affects the performance and quality of the optical fiber.According to the processing requirements of optical fiber preforms,combined with the principle of magnetic polishing,the design method and implementation structure of the rotating magnetic field were proposed.Using the technical solution of"workpiece fixed magnetic field rotation",a rotary magnetic polishing machine was designed.In addition,combined with Maxwell software to simulate the magnetic field of the polishing head,the relationship between the rotating magnetic field parameters and the magnetic force was explored.The research results show that the proposed rotary optical fiber preform magnetic polishing machine can meet the polishing needs;the parameters of the rotating magnetic field affect the magnetic field force.Under simulated conditions,when the height of the armature is greater than 20 mm,the magnetic field force will gradually increase with the increase of the current intensity.