Surface contact polishing device

Abstract

The invention discloses a surface contact polishing device, and belongs to the technical field of machine precision manufacturing. The surface contact polishing device comprises a rubber film, a piston screw, a supporting part and a base body. A guide column surface and an internal thread used for adjusting the position of the supporting part are arranged on the inner side of the base body. The supporting part is arranged on the upper portion of the base body. A guide column is arranged on the lower portion of the supporting part and is matched with the guide column surface. A piston hole is further formed in the middle of the supporting part, and the piston screw is mounted in the piston hole. The rubber film is arranged on the outer portion of the supporting part. When the device is driven by a machine tool spindle to rotate, the rubber film and a workpiece are in surface contact. Liquid on the inner side of the rubber film of the surface contact polishing device achieves pressure-adjustable constant-pressure supporting through the screwing-in depth of the piston screw, and pressure on the contact area is distributed uniformly. Therefore, the effect of uniformly removing materials is achieved in the polishing process, and meanwhile the machining surface texture during polishing can be controlled.

Description

technical field [0001] The invention belongs to the technical field of mechanical precision manufacturing, and in particular relates to a surface contact polishing device. Background technique [0002] Optical surface polishing is the process of removing the remaining subsurface damage during milling and improving the surface finish of the workpiece under the physical and chemical action of the polishing liquid on the milled surface through the contact between the polishing tool and the surface of the workpiece during the processing of optical components. process. The characteristics of the polishing process are that the material removal on the surface of the workpiece is related to the polishing pressure, the relative speed of the workpiece and the polishing tool, and the polishing time. When the relative speed and polishing time are constant, the amount of material removal is only related to the polishing pressure. To ensure uniform material removal, it is necessary to e...

AI Technical Summary

Problems solved by technology

Not conducive to improving surface finish

At the same time, when using a polyurethane matrix spherical polishing device to polish an aspherical surface, the polishing pressure cannot be adjusted adaptively, resulting in severe wear of the polyurethane material, which affects the machining accuracy of the workpiece surface. The addition of factors affecting the swing angle will also increase the processing difficulty and limit the processing surface type.

[0004] It can be seen that the polishing device used in the prior art either has a poor polishing finish or low production efficiency, resulting in higher production costs;

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