Measuring tool for roundness of glass circular disk and measuring method thereof

Abstract

The invention discloses a measuring tool for the roundness of a glass circular disk and a measuring method thereof. The measuring tool comprises a standard component. Cross curves are printed on the surface of the standard component. With the midpoint of the cross curves as a circle center, a plurality of concentric circles are printed. The cross curves comprise four line segments using the midpoint as a starting point, and graduations are marked on at least one line segment. The zero point of the graduations is the midpoint of the cross curves. Compared with the prior art, a plurality of concentric circles can be printed on the standard component so as to adapt to roundness detection of glass circular disks with different specifications. A glass circular disk is placed on the standard component, and a measuring result can be read as long as the position of the glass circular disk is adjusted. The measuring method of the measuring tool is simple, convenient and reliable.

Description

technical field [0001] The invention relates to the technical field of true-roundness detection, in particular to a measuring tool and a method for measuring the true-roundness of a glass disc. Background technique [0002] Multi-layer ceramic capacitors (Multi-layer ceramic capacitors), in the production process, need to go through 13 production processes, Power (synthesis) engineering, Slurry engineering, forming engineering, printing engineering, lamination engineering, pressing engineering, cutting Engineering, Firing Engineering, Grinding Engineering, External Electrode Engineering, Plating Engineering, Measurement Engineering and Appearance Engineering. In the final appearance project, it is necessary to put the product on a glass disc for visual inspection on six sides. The glass disc carries the product and rotates to check the six sides. Therefore, if the roundness of the glass disc is not enough, it will affect the movement and positioning of the product, and cause...

AI Technical Summary

Problems solved by technology

In the final appearance project, it is necessary to put the product on a glass disc for visual inspection on six sides. The glass disc carries the product and rotates to check the six sides. Therefore, if the roundness of the glass disc is not enough, it will affect the movement and positioning of the product, and cause damage to the inspection. Difficulty, it will also affect the inspection results

[0003] In the prior art, the method of measuring the true roundness of a glass disc is to place the glass disc on a rotating platform, set a laser sensor at the outer edge of the glass disc, and measure the radius change during the rotation of the glass disc. Its true roundness; the disadvantage of this measurement method is that the operation is cumbersome and takes a long time; in addition, when the glass disk rotates, it needs to be fixed on the rotating platform through the hole at the center of the circle, so that the The accuracy of the round hole is relatively high. If there is an error in the machining accuracy of the round hole, it will affect the measurement result of the true roundness of the glass disc.

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