Device for preparing polishing glue

Abstract

The invention discloses a device for preparing polishing glue, belonging to the technical field of optical machining. The device comprises a barrel body, a barrel inner layer, a heat insulation layer between the barrel body and the barrel inner layer, and a barrel cover at the upper part of the device, wherein an upper bracket is arranged at the upper part of the barrel body; a motor, a speed reducer and stirring blades are arranged on the upper bracket; supporting legs are arranged at the lower part of the barrel body; a discharge pipe and a discharge valve are arranged at the bottom of the barrel body; an annular filter net is arranged among the stirring blades in the barrel body; and an annular ceramic heater is arranged between the barrel inner wall and the heat insulation layer. The stress distribution in the polishing glue obtained by pouring forming is uniform, so as to beneficial for controlling the surface shape of a processed element, and shortening the convergence time of the surface shape; however, filter nets arranged in the barrel and at an outlet can filter out impurity particles in a raw material, thereby reducing the content of large-grained impurities on the surface of the formed polishing glue, and reducing the probability of generating defects by an optical element. Finally, automatic production of the polishing glue is achieved, the preparation flow is simplified, and the forming quality of the polishing glue is improved.

Description

[0001] Technical field [0002] The invention relates to auxiliary equipment for processing optical elements, in particular to a preparation device for polishing materials, and belongs to the technical field of optical processing. Background technique [0003] At present, the polishing glue prepared by asphalt is mainly used as the polishing mold in the polishing stage of large-diameter and high-precision optical components. As the asphalt has certain plastic deformation ability and thermal flow characteristics, it can automatically adjust the surface shape and grinding according to the pressure and contact state. Therefore, it can accelerate the speed of surface shape convergence, slow down the scratch damage caused by larger abrasive particles on the machined surface, and finally achieve the purpose of improving surface quality and reducing the thickness of surface metamorphic layer and surface roughness. Based on the above advantages, asphalt polishing glue is widely used a...

AI Technical Summary

Problems solved by technology

[0004] The traditional polishing glue preparation method is to obtain molten asphalt by heating with an electric furnace. Since there is no real-time monitoring of temperature control, constant temperature and heat preservation functions, the temperature of the asphalt is not controlled and the distribution is extremely uneven during the entire polishing glue preparation process. , causing some asphalt to produce a large amount of volatile matter due to high temperature, and the corresponding composition also changes; moreover, the traditional preparation method lacks sufficient stirring, which also exacerbates the uneven distribution of the temperature field and the properties of the polishing compound. Ultimately, the internal stress distribution of the polishing glue after pouring and molding is extremely uneven, which has an adverse effect on the surface shape control during the polishing process; The surface quality of the finished polishing glue is poor, which directly affects the surface quality of the processed optical components

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