Universal clamp for visual inspection of curved glass and detection method

Abstract

The invention discloses a universal clamp for visual inspection of curved glass and a detection method. The clamp comprises a clamp supporting seat, an adjustable limiting pin apparatus, an air cylinder apparatus and a vacuum sucker apparatus; the clamp supporting seat comprises a clamp base and a sucker base; the adjustable limiting pin apparatus and the air cylinder apparatus are installed on the clamp base; the sucker base is installed on the air cylinder apparatus; the vacuum sucker apparatus is installed on the sucker apparatus; the adjustable limiting pin apparatus is used for positioning the curved glass; the vacuum sucker apparatus is used for adsorbing and fixing the curved glass; and the air cylinder apparatus is used for enabling the curved glass to be away from the adjustable limiting pin apparatus. By adopting the universal clamp, the curved glass can be rapidly and accurately positioned, the influence of the clamp on the imaging effect can be reduced, the defect leak detection phenomenon can be avoided, the curved glass of different sizes can be clamped, and the universality is good.

Description

technical field [0001] The invention relates to the technical field of visual detection, in particular to a universal fixture and detection method for visual detection of curved glass. Background technique [0002] In recent years, with the continuous advancement of society and technological level, the research of machine vision has attracted much attention. Compared with manual inspection, machine vision inspection has significant advantages: for example, machine vision inspection is a non-contact inspection, which will not cause any damage to the observer and the observed, thereby improving the reliability of the system; it also has a wider range of The spectral response range can expand the visual range of the human eye; it can work stably for a long time, and it is difficult for humans to observe the same object for a long time, while machine vision can perform measurement, analysis and identification tasks for a long time. Effective detection results depend on high-qua...

AI Technical Summary

Problems solved by technology

[0003] Curved glass greatly improves the aesthetics of the product, and has the advantages of being light and thin, transparent and clean, anti-fingerprint, anti-glare, and good weather resistance. However, because the edge of the curved glass has a certain curvature, the imaging of the curved surface is more difficult than the flat imaging. Therefore, most of the current detection technologies are mainly used in the detection of flat glass defects, and there are relatively few technologies to solve the problem of curved glass defect detection.

[0004] At present, the fixtures that use visual inspection of curved glass on the market mainly realize the basic positioning function. The reflection of the fixture body itself and the blocking of the limit pin may affect the imaging effect, resulting in missed defects.

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