Three-axis accurate grinding device for quasi-spherical core

Abstract

A three-axis accurate grinding device for a quasi-spherical core comprises a machine body, at least one accurate grinding station is arranged on the machine body and comprises an accurate grinding disc used for containing a lens to be accurately ground, the accurate grinding disc is connected to a swinging mechanism capable of swinging, an accurate grinding head is suspended above the accurate grinding disc, the accurate grinding head is connected to the lower end of a longitudinal adjusting and stopping mechanism, and the longitudinal adjusting and stopping mechanism is fixed on the machine body. The distance between the accurate grinding head and the lens to be accurately ground is controlled by the longitudinal adjusting and stopping mechanism, and meanwhile the swinging mechanism swings according to a preset swing track curve. According to the accurate grinding device, the swing track of a bearing table is stably and uniquely adjusted and controlled through a connecting rod and a crank of the swinging mechanism and an axial adjusting mechanism. Meanwhile, the accurate grinding height can be set under the adjustment of the longitudinal adjusting and stopping mechanism, automatic accurate grinding operation on a complex curved surface lens is achieved, the efficiency is greatly improved, and the yield is also guaranteed.

Description

technical field [0001] The invention relates to the field of lens grinding, in particular to a three-axis quasi-spherical core fine grinding device. Background technique [0002] At present, with the continuous development of the optical lens industry, the specification requirements for the lens are becoming more and more stringent; the fine grinding and polishing of the lens refers to the process of reducing the roughness of the workpiece surface under mechanical action to obtain a bright and flat surface. The processing method uses polishing tools or other polishing media to modify the surface of the workpiece. The purpose of polishing is to obtain a smooth surface or lens luster for the workpiece. [0003] In the prior art, the lens fine grinding machine requires a lot of manual operations during the processing of the lens, and the automation of the entire processing process is low and the efficiency is low; moreover, the existing fine grinding machine generally cannot be...

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Problems solved by technology

[0003] In the prior art, the lens fine grinding machine requires a lot of manual operations during the processing of the lens, and the automation of the entire processing process is low and the efficiency is low; moreover, the existing fine grinding machine generally cannot be used for complex curved surfaces. The lens is ground, or the curvature of the lens obtained by fine grinding cannot meet the precision requirements; in addition, the existing fine grinding machine lacks the flexible manufacturing effect, especially for the lens that needs to meet the high-precision curvature requirement, in one machine It is currently impossible to realize the fine grinding of different surfaces of different lenses to obtain lenses with qualified curvature requirements

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