KR950010672Y1 - Bulb seal alignment tester for crt - Google Patents

Abstract

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Description

Seal Matching Device

1 is a plan view of the measuring device of the present invention.

2 is a partially enlarged cross-sectional view of FIG.

* Explanation of symbols for main parts of the drawings

1: base plate 2,3: bracket

4: stopper 5: dial guage

The present invention relates to the production of CRT, and more particularly to a seal alignment measuring device of a novel configuration.

After the fluorescent surface is formed on the inner surface of the panel, it is an assembly on which various pore parts such as a mask frame are mounted and is sealed with a funnel to form a co-bulb.

The neck of the cobulb is mounted with an electron gun assembly, exhausted and encapsulated to complete the CRT bulb.

The fluorescent gun inside the panel and the electron gun assembly mounted on the neck of the funnel must be matched correctly to form a high quality image. To do this, first, the panel and the funnel must be sealed in a well-aligned state. Otherwise, when the fluorescent surface is formed, the center of exposure and the center of the electron gun assembly, which is an electron beam radiation source, become inconsistent, causing deterioration of the image as described above. Is generated.

However, since panels and funnels are glass products, their dimensions are not uniform and they have a value scattered within a certain range.

Accordingly, the dimensions of the outer diameter and seal face of panels and funnels should be measured at a sufficient frequency, and statistically controlled, such as the identification of scatter plots, so that they can be matched correctly when sealed. However, conventionally, these dimensions can only be measured by vernier calipers, so only a part of them can be periodically sampled and inspected. In addition, since this inspection process is to measure large panels and funnels with vernier calipers, the measurement is difficult and there are many errors in the measurement values, and it is not possible to know whether the panel and the funnels maintain the degree of mutual conformity. there was.

The object of the present invention is to provide a seal matching measuring device capable of inspecting the sealing registration possibility by performing statistical dimensional control by measuring the management dimensions of the panel and the funnel quickly and accurately in view of such a conventional problem. .

In order to achieve the above object, the seal matching measuring device according to the present invention is characterized in that it is configured to measure a measurement object by arranging measurement means such as a stopper and a dial gauge which are measurement reference points on a substrate.

This makes it possible to quickly and accurately measure the management dimensions of the workpiece.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In FIG. 1, brackets 2 and 3 are provided on four sides of the substrate 1, respectively. A stopper (4) is provided on each of the brackets (2, 3) on the right side and the lower side of the drawing, so that the tip of the head forms a measurement reference point.

Gauge fixing holes are formed in the brackets 3 on the left side and the upper side of the figure, respectively, so that minute movements of the probe 5a such as dial gauge 5 or digital gauge can be read. Measuring means is installed to display the measured value. On the other hand, the left and right brackets in the drawing are divided into two for convenience of measurement.

The gauge fixing hole is preferably composed of an upper fixing hole 3a and a lower fixing hole 3b as shown in FIG.

In this case, the upper fixing hole 3a is used to measure the outer diameter of the measurement object PF, such as a panel or a funnel, that is, an external dimension in the vertical axis and horizontal axis directions, and the lower fixing hole 3b has a respective sealing surface f. Used to measure the dimensions of As shown in FIG. 2, the measuring means such as the dial gauge 5 may be configured to be selectively coupled to the upper and lower fixing holes 3a and 3b so as to measure corresponding dimensions. In addition, the measuring means may be separately provided in the lower fixing holes 4a and 4b, respectively, so as to simultaneously measure the outer circumferential diameter and the sealing surface dimension of the object under test PF. (Not shown 6 is a pad to prevent damage to the object PF.)

The process of performing the measurement with the present invention measuring device is configured as follows.

First, mount a standard panel or standard funnel at the position of the object to be measured, and contact the right end and the bottom with the head end of the stopper 4, and then measure the dial gauge 5 etc. on each bracket 3. Zero setting is performed by setting the means to " 0 ".

Next, take out the standard panel or standard funnel, and place the panel or funnel to be measured with the PF to measure the outer diameter and sealing surface dimensions. At this time, the measuring means of each dial gauge (5) is zero-adjusted with respect to the standard panel or the standard funnel. Therefore, the value measured by the measuring means such as the dial gauge (5) becomes a deviation from the standard value. This is very quick and easy.

As a result, it is possible to quickly measure the management dimension of a sufficient number of panels or funnels, so that it is possible to easily obtain specific data necessary for statistical jig management such as scatter diagrams. Will be.

In this way, the present invention is capable of quickly and accurately measuring the management dimensions of the panel and the funnel, thereby ensuring the matching of the seals, thereby significantly improving the quality of the CRT.

Claims (2)

The substrate 1 on which the object PF of the panel or funnel is mounted, the brackets 2 and 3 provided on the four sides of the substrate 1, the vertical of the object in the brackets 2 and 3, and A seal match measuring device, characterized in that it comprises a stopper (4) which is respectively provided on one end of the bracket (2) in the horizontal direction, and measuring means which are respectively installed on the remaining brackets (3) of the brackets (2, 3). . The upper fixing hole 3a for measuring the outer diameter of the measurement object PF and the sealing surface dimension of the measurement object PF in the bracket 3 on which the measurement means is installed. Sealing registration measuring device, characterized in that the lower fixing hole (3b) for measuring each is provided, the measuring means is provided in at least one of the upper and / or lower fixing hole (3a, 3b).