Glass substrate grinding amount measuring method and system

Abstract

The invention relates to a glass substrate grinding amount measuring method and system. The edges of a glass substrate enter grinding grooves extending in the circumferential directions of grinding wheels. The method comprises the steps that a measuring zero point is determined; first position information of the contact grinding position of each grinding wheel and the glass substrate relative to the measuring zero point before grinding is obtained; second position information of the contact grinding position of each grinding wheel and the glass substrate relative to the measuring zero point after grinding is obtained; and the grinding amounts of the glass substrate are calculated according to the first position information and the second position information. By means of the above technical scheme, according to the grinding amount measuring system and method, the position information of the contact grinding positions of the glass substrate and the grinding wheels before and after grinding can be obtained fast and accurately, workers can accurately judge whether the grinding amounts are proper or not according to the position information and carry out corresponding adjustment, and the working efficiency is greatly improved.

Description

technical field [0001] The present disclosure relates to the field of glass substrate production, and in particular, to a method and system for measuring the grinding amount of a glass substrate. Background technique [0002] During the production process of glass substrates, the four sides and corners of the glass substrates need to be ground to remove cracks and chip off edges and prevent cracks from spreading to the inside. In the grinding process, the "water grinding" method is mostly used at this stage, that is, spraying water is added during the grinding process to play a role in cooling and hydrolysis, and to prevent other defects such as edge burning caused by overheating during the grinding process. However, during this process, a large amount of grinding powder and glass shavings will be washed to the glass surface, adhering to the surface of the glass substrate and affecting its quality. In addition, during the grinding process, the amount of grinding on both sid...

AI Technical Summary

Problems solved by technology

In the grinding process, the "water grinding" method is mostly used at this stage, that is, spray water is added during the grinding process to play the role of cooling and hydrolysis, and prevent other defects such as edge burning caused by overheating during the grinding process. However, during this process, a large amount of grinding powder and glass shavings will be washed to the glass surface, and adhere to the surface of the glass substrate to affect its quality

In addition, during the grinding process, the amount of grinding on both sides of the glass substrate needs to be precisely controlled, and the measurement method of the grinding amount is mainly obtained by manually measuring the edge length of the glass substrate before and after grinding and performing corresponding calculations, and at the same time Double-side grinding cannot accurately measure the amount of grinding on each side of the glass substrate. It is necessary to perform single-side grinding to determine the length of the side after one-side grinding and calculate the amount of single-side grinding, and then perform double-side grinding to manually measure after double-side grinding The length of the side of the glass substrate and calculate the amount of grinding on both sides, and then subtract the amount of grinding on one side from the amount of grinding on both sides to get the amount of grinding on the other side of the glass substrate, and the length of the glass substrate needs to be measured during the measurement process. The range is relatively large, and the whole process takes a long time, seriously affecting production efficiency

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