KR950007566Y1 - Electron gun jig - Google Patents

Abstract

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Description

Jig for Assembly of Remnant Gun Parts

1 is a configuration diagram of a jig used in the prior art.

2 is a schematic view of the jig according to the present invention.

3 is a cross-sectional view of the present invention fitting groove.

* Explanation of symbols for main parts of the drawings

1: substrate 2: guide rod

7, 8: holder

The present invention relates to an improvement of an electron gun component assembly jig used to assemble a cathode ray tube in order to assemble electrode components of an electron gun in an accurate position relationship with each other.

The present invention relates to a jig for assembling an electrode part of an inline type electron gun, which is used in a color-brown tube. The inline type gun has three cathode electrodes each emitting blue, green, and red electron beams, and each cathode electrode. It includes a plurality of grid electrodes for connecting and accelerating the electron beams emitted from the electron beam. When assembling the electrode parts, the corresponding ones of the electron beam passing holes on each grid electrode are precisely aligned with the center axis of the cathode electrode. At the same time, the spacing between these electrode components must be maintained at the desired spacing and assembled.

In order to ensure the correct assembly of such electrode components, conventional central electron beam through holes of the grid electrodes of the electron gun, for example, the grid electrodes 5 and 6, on the substrate 1 as in the example shown in FIG. (5a) and (a) central guide rods (2) for guiding coincidence on the concentric axis, electron beam processing (5b) (6b) and electron beams on both sides of the grid electrodes (5) (6). A jig has been used in which both side guide rods 3 and 4 are provided together to guide the through holes 5c and 6c to coincide on the concentric axis.

In the conventional jig, on both side guide rods (3) (4), both electron beam through holes (5b) and (6b) and electron beam through holes (5c) and (6c) on each side of the grid electrodes (5) and (6). Appropriate steps are formed to cooperate with each other to maintain the desired gap between the grid electrodes 5 and 6, and as the number of grid electrodes increases, the guide rods 3 and 4 Since a number of steps are formed in a complex manner, rods must be manufactured with a great deal of processing time and extreme precision, and thus, a jig is very difficult to manufacture and manage.

The present invention has been devised to solve the above-mentioned problems by providing a jig that is much easier to manufacture and manage while providing a higher precision than the prior art for assembling electrode parts of an electron gun. When described in detail based on the following.

The present invention is basically, in the electron gun of the above-described type, the electrode parts, even if the size, shape, and position of the two electron non-pass holes on each grid electrode according to the design of the electron gun can vary the weight of the electron non-pass holes and both electrodes The focus is on the fact that the shape and size of the edges hardly change.

Therefore, according to the present invention, as shown in FIG. 2, the jig has the substrate 1 and the center guide rod 2 installed on the substrate 1 as in the conventional jig, and the center guide rod 2 Instead of removing the conventional guide rods (3) (4) disposed on both sides, holders (7) (8), which can hold and hold both edges of each electrode part, for example, the grid electrode (5) (6), at the correct positions, respectively. ) Is installed by dividing on both sides of the central guide rod (2).

The holders 7 and 8 on both sides are fitted to allow the both edges of the grid electrodes 5 and 6 to be assembled to be exactly fitted at desired positions on the surface facing the center guide rod 2. It may have grooves 7a and 8a.

Referring to the assembly process of the present invention configured as described above, the outer circumferential surface of both ends of the grid electrode (5) is fitted to the guide rod (2) in the state of being fitted to each holder (7) (8) It fits into the grooves 7a and 8a.

At this time, when the grid electrode 5 is pressed down, the respective holes 7 and 8 slightly open to both sides, and are lowered while being caught by the fitting grooves 7a and 8a in multiple stages.

That is, the outer circumferential surfaces of both ends of the grid electrode 5 enter and exit the respective fitting grooves 7a and 8a, which are bent in a wave shape, and are lowered.

On the other hand, when the grid electrode 5 is positioned at an appropriate height from the substrate 1, the lowering of the grid electrode 5 is stopped.

At this time, each of the holes 7 and 8 which are opened to both sides is restored, and the fitting grooves 7a and 8a are fitted into and fixed to the outer circumferential surfaces of both ends of the grid electrode 5. Then, the other grid electrodes 6 are pressed in the same manner to maintain the appropriate intervals with the already inserted grid electrodes 5, and then stop. Then, the grid electrodes 5 and 6 are formed in the holders 7 and 8. It is provided in the board | substrate 1 in the state latched by the groove | channels 7a and 8a.

According to the present invention, the electron beam passing holes 5b and 6b and the electron beam passing holes 5c and 6c on both sides of the grid electrodes 5 and 6 are to be assembled according to the type or design change of the electron gun. Even if the size, shape or formation position is different, the holders 7 may have both edges of the grid electrodes which do not change in shape and size without any need to change and replace both guide rods 3 and 4 as in the prior art. (8) as it is so that these electrode parts can be accurately assembled in the desired assembly position as desired, providing the same high precision as the conventional assembly of the electrode parts of the electron gun, while making the use and management of the jig than before It is a new useful effect that can be achieved much easier and easier.

Claims (1)

A plurality of grid electrodes 5, 6 having electron non-pass holes 5a, 6a, 5b, 6b, 5c, and 6c on both sides of the central tube are provided with the electron electron pass-through holes 5a and 6a. ) Is laminated on the substrate 1 so that the guide rod 2 is fitted into the substrate 1, the hole diagrams 7 and 8 and the respective holders 7 and 8 placed on both sides of the upper portion of the substrate 1, respectively. It is formed on the opposite surface with the same curvature as the outer circumferential surface of both ends of each grid electrode (5) (6) is provided with a plurality of fitting grooves (7a) (8a) that each grid electrode (5) (6) is multi-stage Jig for assembling electron gun parts.