Circulating device for transferring magneto-rheological polishing solution through gravity drive

Abstract

The invention provides a circulating device for transferring a magneto-rheological polishing solution through gravity drive. In the device, an installation support and a polishing wheel installation support are fixedly connected with a Z-shaft slide carriage fixed to a machine tool Z shaft so as to integrally move along with the machine tool Z shaft. A solution storage tank, a transferring pipeline and a nozzle are installed from high to low, so that the polishing solution is transferred to a polishing wheel through gravity drive to from a polishing ribbon. Flow regulation and closed-loop stability control of the transferring pipeline are conducted through a pipe connector with a size-adjustable opening, a magnetic-current valve with adjustable electromagnetic field intensity and an electromagnetic flow meter. Stability control of polishing solution moisture is conducted through a pressure sensor and a micro pump. In the circulating device for transferring the magneto-rheological polishing solution through gravity drive, no lift range changing exists in the transferring pipeline, and the problem that owing to the fact that transferring pipeline flow rate disturbance caused by changing of the movement height of the machine tool Z shaft occurs, polishing removal stability is influenced is solved; and the engineering problem that due to long-time working of the polishing solution, centrifugal pump temperature rising and high-speed shear thinning, performance of the circulating device is degraded can be solved.

Description

technical field [0001] The invention belongs to the field of optical element polishing, in particular to a circulation device for gravity-driven transmission of magnetorheological polishing liquid. In the magnetorheological polishing process equipment, the stable transmission and recycling of the magnetorheological polishing fluid can be realized. Background technique [0002] Magnetorheological polishing technology is an ultra-precision machining method proposed by combining electromagnetics, fluid dynamics, analytical chemistry and other disciplines. It is known as a revolutionary technology in the optical manufacturing industry. It uses the magnetorheological polishing fluid Controllable rheology, to achieve precise and deterministic removal of optical materials, and can efficiently obtain high-precision profiles below tens of nanometers, nano-scale surface quality and almost no sub-surface defects, which well meet the requirements of aerospace, aviation and national defe...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of long-term stable transmission and reliable circulation of polishing fluid in the process of magnetorheological polishing, and improve the quality and efficiency of polishing, the present invention provides a circulation device for gravity-driven transmission of magnetorheological polishing fluid, which can realize magnetic flow Improve the stability of the transmission and recycling of the polishing fluid, and improve the reliability and maintainability of the magnetorheological polishing fluid circulation device

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