Polishing device

Abstract

The invention discloses a polishing device, and relates to the technical field of part polishing. The polishing device comprises a power rotating device, a rotating shaft, a water replenishing disc, afirst magnet, a magnetic composite fluid and a water vapor generating device, wherein the power rotating device drives the rotating shaft to rotate; the rotating shaft is tubular; the water vapor generating device is connected with one end of the rotating shaft; the other end of the rotating shaft is fixedly connected with one face of the water replenishing disc; the other face of the water replenishing disc is fixedly connected with the first magnet; a ventilation structure is arranged on the water replenishing disc; a through hole is formed in the fixed connection part of the water replenishing disc and the rotating shaft; the edge of the water replenishing disc extends in the direction far away from the rotating shaft; the magnetic composite fluid is adsorbed on the first magnet; and water vapor generated by the water vapor generating device enters the interior of the rotating shaft, and is conveyed to the periphery of the magnetic composite fluid after passing through the throughhole and the ventilation structure to uniformly replenish water, so that the service life of the magnetic composite fluid in the polishing process is prolonged, frequent replacement is avoided, and processing cost is reduced.

Description

technical field [0001] The invention relates to the technical field of parts polishing, in particular to a polishing device. Background technique [0002] With the continuous development of optoelectronic technology, the precision requirements of optical and mechanical parts processing surfaces are getting higher and higher. At present, there are many precision polishing methods to obtain high-precision processing surfaces, such as grinding, chemical polishing, ion beam polishing, etc. However, these processing methods or the material removal efficiency is too low, or the polishing process is not easy to control, and each has certain defects; in order to solve these problems, a method of using magnetic composite fluid for polishing is proposed. The magnetic composite fluid is composed of hydroxyl iron powder, abrasive Granules and plant cellulose are added to the magnetorheological fluid to form a mixed fluid after mechanical stirring; the magnetic composite fluid is an inte...

AI Technical Summary

Problems solved by technology

[0002] With the continuous development of optoelectronic technology, the precision requirements of optical and mechanical parts processing surfaces are getting higher and higher. At present, there are many precision polishing methods to obtain high-precision processing surfaces, such as grinding, chemical polishing, ion beam polishing, etc. However, these processing methods or the material removal efficiency is too low, or the polishing process is not easy to control, and each has certain defects; in order to solve these problems, a method of using magnetic composite fluid for polishing is proposed. The magnetic composite fluid is composed of hydroxyl iron powder, abrasive Granules and plant cellulose are added to the magnetorheological fluid to form a mixed fluid after mechanical stirring; the magnetic composite fluid is an intelligent fluid with good particle dispersion and viscosity. Under the action of a magnetic field, the fluid instantly changes from Newtonian fluid to Bingham fluid

A flexible polishing tool is formed under the action of a magnetic field. When the workpiece and the magnetic composite fluid have a relative velocity, the abrasive particles in the magnetic composite fluid have a small cutting force on the workpiece, and remove excess material on the surface of the workpiece, thereby forming a rough surface. Smooth surface; for example, the adjustable magnetic composite fluid polishing head mechanism disclosed in the patent document (CN106863023B) can use magnetic composite fluid to polish parts efficiently, but the magnetic composite fluid needs to ensure a certain viscosity during use, that is, it needs to maintain A certain proportion of water, and the evaporation of water during use makes the magnetic composite fluid have a short life in the polishing process and needs to be replaced frequently, which increases the processing cost and hinders the industrial application of the magnetic composite fluid

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