| 摘要 |
<p>The present invention provides a quality inspection method of a glass plate, which can predict the shape of the glass plate on a four-point supporting type actual measurement inspection stand from the shape of the glass plate on a three-point supporting type universal actual measurement inspection stand. In the present invention, based on three types of design shape data C1, C2 and C3 of a glass plate in a state that it is placed on a three-point supporting type actual measurement inspection stand and an actual measurement shape data Y1 of the glass plate in a state that it is placed on the actual measurement inspection stand, virtual errors ”C2=C2-C1, ”C3=C3-C1 and ”Y1=Y1-C1 at four supporting points of the glass plate are calculated; the degree of agreement of signs between the vector ”Y1 and ”C2 or ”C3 is evaluated to judge which of the pattern of C2 and the pattern of C3 is close to Y1; the degree of movement of weight distribution is obtained from the ratio between ”Y1 and ”C2 or ”C3 to obtain the average of the ratios at the virtual four supporting points; according to the degree of movement of weight distribution, a correction amount R=r(C3-C1) of a weight distribution close to the pattern of C3 or a correction amount R=r(C2-C1) of a weight pattern close to the pattern of C2, is obtained; the correction amount R=r(C3-C1) or the correction amount R=r(C2-C1) is subtracted from Y1-C1 to calculate a value corresponding to a difference Y2-A between a shape data Y2 of the glass on a desired actual measurement inspection stand and a design data A on the desired actual measurement inspection stand; and from the value corresponding to a difference Y2-A and a quality standard, the quality of the glass plate is judged.</p> |
