Fixing clamp used for grinding of spectacle lenses

Abstract

The invention discloses a fixing clamp used for grinding of spectacle lenses. The fixing clamp comprises a base. Sliding grooves are formed in the two ends of the top of the base correspondingly, andfixing holes which are distributed at equal intervals are formed in the bottoms of the sliding grooves. Sliding blocks are slidably connected to the inner walls of the two sliding grooves correspondingly, and clamping blocks are welded to the top ends of the two sliding blocks correspondingly. Insertion grooves used accommodating corners of lenses are formed in the tops of the clamping blocks andare each of an arc-shaped structure. A through hole is formed in the outer wall of one side of each clamping block, a push rod is inserted into the inner wall of each through hole, and one end of eachpush rod extends into the corresponding insertion groove. By adoption of the fixing clamp, abrasion caused by traditional mechanical claws can be avoided; during grinding, the grinding angle of the lenses can be adjusted through a rotary shaft, and thus grinding is facilitated; and a fan is arranged and blows air towards the lenses through an air pipe in the grinding process so that powder generated in the grinding process can be blown away in time, the influence of the powder on ground surfaces is avoided, and the grinding effect is improved.

Description

technical field [0001] The invention relates to the technical field of lens processing, in particular to a fixing fixture for spectacle lens grinding. Background technique [0002] Glasses are lens lenses embedded in the frame and worn in front of the eyes to improve vision, protect eyes or for decoration. Glasses can correct a variety of vision problems, including nearsightedness, farsightedness, astigmatism, presbyopia or strabismus, etc. Glasses are composed of lenses and frames. There are four kinds of glasses for myopia, glasses for farsightedness, glasses for presbyopia and glasses for astigmatism. There are also special glasses for watching 3D stereoscopic images or virtual reality images. Glasses Other types of glasses include goggles, sunglasses, swimming goggles, etc., which provide various protections for the eyes. Modern spectacles are usually provided with a nose pad in the middle of the lens, and cushions are provided at the position where the left and right...

AI Technical Summary

Problems solved by technology

Glasses need to use fixtures in the process of processing. However, when the existing fixtures are used and ground, because the clamping points of the fixtures are mechanical claws, it is easy to cause lens wear and tear. The fixed angle of the existing fixtures cannot be specified according to the requirements. Adjustment is not convenient for processing, and the powder generated during grinding cannot be removed in time, resulting in poor grinding effect

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