Brush auxiliary force rheological polishing device for thin-wall annular part and polishing method

Abstract

The brush auxiliary force rheological polishing device for the thin-wall annular part comprises a mounting table, a polishing circular groove is formed in the mounting table, and a rotary table is arranged in the center of the bottom of the polishing circular groove and connected with a rotary motor; powerful rheological polishing liquid is contained in the polishing circular groove, and a brush is annularly arranged on an inner cavity of the polishing circular groove; a mounting rack is further arranged on the mounting table, a lifting device is mounted on the mounting rack, a rotating disc is mounted on a mounting seat of the lifting device, the rotating disc and the mounting seat form a rotating pair, and the rotating center line of the rotating disc and the rotating center line of the rotating table coincide with each other; a rotating shaft is annularly arranged on the lower end face of the rotating disc, the rotating shaft and the rotating disc form a rotating pair, and the rotating shaft is connected with a driving device. Buckle mechanisms matched with each other are arranged on the rotating disc and the rotating table. The polishing device has the advantages of being high in machining efficiency, good in polishing effect and low in manufacturing cost. Correspondingly, the invention further provides a brush auxiliary force rheological polishing method for the thin-wall annular part.

Description

technical field [0001] The invention relates to the technical field of precision and ultra-precision machining, in particular to a brush-assisted rheological polishing device and a polishing method for thin-walled annular parts. Background technique [0002] At present, some thin-walled ring-shaped parts with complex curved surfaces, such as the watch case frame, because of their complex outer surface, and due to various reasons such as cost and difficulty in realization, workers use felt one by one to polish the outer surface. Polishing is not only inefficient but also highly dependent on manual experience, which is not conducive to the improvement of enterprise efficiency and benefits. The force rheological polishing technology uses the non-Newtonian fluid with shear thickening properties as the base liquid to prepare the polishing liquid, which can achieve efficient and high-quality polishing on the surface of the workpiece. However, because the bottom surface of the watc...

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Problems solved by technology

[0002] At present, some thin-walled ring-shaped parts with complex curved surfaces, such as the watch case frame, because of their complex outer surface, and due to various reasons such as cost and difficulty in realization, workers use felt one by one to polish the outer surface. Polishing is not only inefficient but also highly dependent on manual experience, which is not conducive to the improvement of enterprise efficiency and benefits

The force rheological polishing technology uses the non-Newtonian fluid with shear thickening properties as the base liquid to prepare the polishing liquid, which can achieve efficient and high-quality polishing on the surface of the workpiece. However, because the bottom surface of the watch case frame is an irregular, small-angle curved surface, When using the force rheological polishing method to polish, the polishing liquid will produce large clusters at the small surface angle under high shear rate, which hinders the polishing liquid from flowing through the gap, thus affecting the polishing effect of thin-walled ring parts

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