KR20010094676A - electron gun assembling apparatus and its assembling method for a color cathode ray tube - Google Patents

Abstract

PURPOSE: An apparatus and method for assembling electron gun for color CRT is provided to set the relative position between G2 electrode and G3 electrode in an accurate manner, while preventing distortion caused by thermal influence during melting and burial of bead glass. CONSTITUTION: An electron gun assembly apparatus is divided into an upper assembly unit and a lower assembly unit so as to arrange an upper electrode group and a lower electrode group between G2 and G3 electrodes, wherein the upper assembly unit and the lower assembly unit are guided through a guide post. A driving block(22) is guided by the upper assembly unit, and an electrode press and RGB alignment member(23) is guided by the driving block. A movable auxiliary pin(50) is installed in the upper assembly unit in such a manner that the movable auxiliary pin is guided toward auxiliary pin holes formed at G2 and G3 electrodes, respectively, so as to set the relative position between G2 and G3 electrodes. The movable auxiliary pin is accurately inserted into auxiliary pin holes of G2 and G3 electrodes, to thereby align G2 and G3 electrodes in a precise manner. A spacer for a gap between G2 and G3 electrodes is divided into upper and lower spacer units, wherein the upper spacer unit is aligned with the movable auxiliary pin and the lower spacer unit guides the movable auxiliary pin.

Description

Electron gun assembling apparatus and its assembling method for a color cathode ray tube}

The present invention relates to an electron gun assembly apparatus of a color cathode ray tube and a method for assembling the same, and more particularly, to prevent deformation caused by fusion of bead glass and thermal effects during embedding, and to precisely position the relative positions of the G2 electrode and the G3 electrode. The present invention relates to an electron gun assembly apparatus for a color cathode ray tube that can be set, and an assembly method thereof.

In general, an electron gun of a cathode ray tube is assembled by spot welding grids constituting various lenses on its flanges, and then fusion and assembling bead glass in the buried flange portion. At this time, for welding and assembling spot welding to bead glass, various grids are precisely assembled by the electron gun assembly device 10 such as a beading jig together with the spacers, and the spot welding and bead glass in the assembled state. Will be fused.

1 and 2, the conventional electron gun assembly apparatus 10 is formed to be separated into the upper assembly apparatus 20 and the lower assembly apparatus 30, and the upper assembly apparatus 20 is in a separated state. The base block 21 is assembled to be aligned with the base block 31 of the lower assembly device 30 via the guide post 32, and is releasably fixed by the fixing device 32 ′. In addition, the upper assembly apparatus 20 has a movable block 22 in the base block 21 to reciprocate, and the movable block 22 is guided by a guide pin 22 'and a spring ( 22a), it is provided with an electrode pressure and RGB alignment member 23, a spacer guide pin 25 and an auxiliary pin 26 as shown in detail in FIG.

On the other hand, the lower assembly device 30, the RGB alignment pin 33 is provided so as to protrude to the base block 21, the spacer 34 corresponding to the gap between the various grid electrodes is installed so as to be inserted and detached.

In the electron gun assembly apparatus 10 having such a structure, the upper assembly apparatus 20 is assembled with the G1 electrode and G2 electrode in an inverted state, and the lower assembly apparatus 30 is assembled with the G3 electrode, G4 electrode, or the like. do. Subsequently, the G2-G3 electrode gap spacer 40 as shown in FIG. 5 is disposed on the G3 electrode of the lower assembly apparatus 30, and the upper assembly apparatus 20 is reversed to guide guide 32 and The electron gun is temporarily assembled by assembling and fixing through the fixing device 32 '. In this case, in the upper assembly apparatus 20, the G1 electrode and the G2 electrode are arranged by the auxiliary pins 26, and are arranged on the electrode pressurization and the RGB alignment member 23. In the lower assembly apparatus 30, the RGB alignment is performed. The pins 33 arrange the electrodes such as the G3 electrode, the G4 electrode, and the like. Then, when the upper assembly device 20 and the lower assembly device 30 are assembled, the electrodes are aligned as shown in FIG. 1.

However, G3 of the RGB alignment pin 33 of the lower assembly apparatus 30 in the state where the G2 electrode and the G1 electrode are aligned by the auxiliary pins 26 of the upper assembly apparatus 20 by the above-described assembly apparatus and method. The spacer assembly for electrode gaps, such as G4 and G5 electrodes, is inserted, and the upper assembly apparatus 20 is guided to the guide post 32 to be assembled with the lower assembly apparatus 30. In this case, the upper assembly apparatus 20 ), Although the movable block 22 and the lower assembly device 30 of the upper assembly device 20 are precisely processed, assembled and guided, the electrodes G1 and G2 are inserted into the electrodes assembled into the lower assembly device 33. There is a problem that it is difficult to precisely align. When the auxiliary pin 26 is guided to the auxiliary hole of the G3 electrode inserted into the RGB alignment pin portion 33 'for the G2 electrode of the RGB alignment pin 33 of the lower assembly device 30, the upper part is aligned. The position precision of the assembly device is an angle due to the tolerance between the guide post 32 and the guide post hole of the upper assembly device 20, the position tolerance of the movable block 22, and the height tolerance of the guide pin 22 'of the movable block. In the auxiliary hole of the G3 electrode inserted into the RGB alignment pin portion 33 'for the G2 electrode of the RGB alignment pin 33 of the lower assembly apparatus 30, the tolerance of each component is assembled into the movable block of the upper assembly apparatus. As the fixed auxiliary pin 26 is positioned by a forcible force, there is a problem that the level and crushing of the electrode are generated and the positioning of the hole becomes difficult.

In addition, when the bead glass is softened or melted in this pre-assembled state, and the buried flange of each electrode is embedded, the heat of fusion is conducted so that thermal stress is generated in the electron gun assembly apparatus 10 and the electrodes. Deformation occurs, and even when designed to eliminate the accumulation of processing, assembly, and guide tolerances, the thermal deformation causes the G1 and G2 electrodes, especially 0.8 mm thick, to deform and further the RGB through holes The problem is that they are not aligned.

Due to such a problem, the assembly failure is inevitable even though the assembly of the electron gun is an important factor in the quality of the cathode ray tube.

Accordingly, the present invention has been made to solve this problem, and it is possible to prevent the deformation caused by the fusion of the bead glass and the thermal effect during embedding, and to assemble the electron gun of the color cathode ray tube which can precisely set the relative positions of the G2 electrode and the G3 electrode. It is an object of the present invention to provide an apparatus and a method for assembling the same.

1 is a half sectional front view showing the configuration of an electron gun assembly apparatus of a conventional color cathode ray tube;

2 is a side view of FIG. 1;

3 is an enlarged partial view of the lower end of the upper assembly device of FIG.

Figure 4 is an enlarged partial view of the upper end of the lower assembly of Figure 1,

5 is a plan view of a spacer for a G2-G3 electrode gap for assembling an electron gun according to a conventional method;

6 is an enlarged partial view of the lower end of the upper assembly apparatus according to an embodiment of the present invention,

7 is a plan view of a split spacer for a G2-G3 electrode gap for assembling an electron gun according to the method of the present invention;

8 is a partially enlarged cross-sectional view of a G2-G3 electrode part for explaining a process of assembling an electron gun according to the method of the present invention;

9 is an enlarged partial view of the lower end of the upper assembly apparatus according to another embodiment of the present invention,

10 is a partially enlarged bottom view of the upper assembly apparatus according to another embodiment of the present invention,

11 is an enlarged partial view of the lower end of the upper assembly apparatus according to another embodiment of the present invention,

12 is a partially enlarged cross-sectional view of a G2-G3 electrode part for explaining another embodiment of a split spacer for a G2-G3 electrode gap and an assembly process according to the embodiment;

<Description of the symbols for the main parts of the drawings>

10: electron gun assembly apparatus 20: upper assembly apparatus

21: base block 22: movable block

22 ': movable block guide pin 22 ": protruding jaw

22b: washer 22c: bolt

23: electrode pressure and RGB alignment member 23 ': spring

23a: Base plate 25: spacer guide pin

25 ': Flow guide pin 30: Lower assembly

31: Base Block 32: Guide Post

33: RGB alignment pin 33 ': RGB alignment pin portion for G2 / G3 electrodes

34: spacer 40: spacer for G2-G3 electrode gap

41: spacer guide pin hole 42: RGB alignment pin hole

43: auxiliary pin hole 50,50 ', 50 ": floating auxiliary pin

51: spring 51 ': washer

60,70,70 ': Split spacer for G2-G3 electrode gap 61,71: Spacer guide pin hole

62,72: RGB alignment pinhole 63,73: auxiliary pinhole

In order to achieve the above object, the electron gun assembly method of the color cathode ray tube according to the present invention is divided into an upper assembly unit and a lower assembly unit for separately assembling the upper electrode group and the lower electrode group between G2-G3 electrodes. In the configured electron gun assembly apparatus, the upper assembly apparatus and the lower assembly apparatus are guided by the guide post, the movable block is guided by the upper assembly apparatus, the electrode block and the RGB alignment member are guided by the movable block, and the electrode An assembly method for assembling the electron gun by aligning the upper electrode group and the lower electrode group by pressing and aligning the RGB alignment member and the RGB alignment pin, and assembling the electron gun parts to embed and fix the grid flange of each electrode to the bead glass. In: Prevents deformation caused by fusion of bead glass and thermal effects during embedding and prevents G1 and G2 electrodes And G1 electrodes, G1 / G2 spacers, and G2 electrodes on the flow assist pins installed in the upper assembly apparatus to precisely set the relative positions of the G3 electrodes to be precisely aligned with the electrodes inserted into the lower assembly apparatus. Flow assist pins to move the G1 and G2 electrodes so that the G1 and G2 electrodes and the G3 electrodes can be precisely positioned when inserted into the assembly and guided by the guide post to the lower assembly device. It is characterized in that the insertion into the auxiliary pin hole of the G3 electrode.

When assembling the upper assembly unit to the lower assembly unit, the above-described flows of the G1 and G2 electrodes such that the relative precision positioning of the G1 and G2 electrodes and the G3 electrodes can be made relative to the movable block of the flow assist pins. It may be made by any one of relative flow to the upper assembly of the movable block and the flow of the flow guide pin to the G2 and G3 electrodes of the movable block.

In the electron gun assembly device according to an embodiment of the present invention, the electronic gun assembly is pre-assembled to separate the upper electrode group and the lower electrode group between the G2-G3 electrodes in order to embed and fix the grid flange of each electrode to the bead glass. The upper assembly device and the lower assembly device is configured to be separated up and down, the upper assembly device and the lower assembly device is guided by the guide post, the electrode pressure and RGB by the movable block is installed to be guided to the base block of the upper assembly device An electron gun assembly apparatus for aligning and assembling the upper electrode group and the lower electrode group by aligning the upper and lower electrode groups, wherein the alignment member is guided, and the electrode pressure and the RGB alignment member are aligned with the RGB alignment pins inserted and aligned in the RGB openings of the electron gun parts. It prevents deformation due to heat effect during fusion and embedding of bead glass, and prevents G1 electrode, G2 electrode and G3 electrode. It includes a flow auxiliary pin which is inserted into the auxiliary pin hole formed in the G1 and G2 electrodes and G3 electrodes to precisely set the opposition position, and is installed to flow in such a way as to allow relative positioning between the G1 and G2 electrodes and the G3 electrode. Characterized in that the configuration.

In addition, the electron gun assembly apparatus according to another embodiment of the present invention, by assembling the electron gun parts to divide the upper electrode group and the lower electrode group between the G2-G3 electrodes to embed and fix the grid flange of each electrode to the bead glass The upper assembly unit and the lower assembly unit is configured to be separated up and down for provisional assembly, the upper assembly unit and the lower assembly unit is guided by the guide post, the electrode pressure by the movable block is installed to be guided to the base block of the upper assembly unit And an RGB alignment member, the electrode pressure and the RGB alignment member being aligned with the RGB alignment pins inserted into the RGB openings of the electron gun parts to align the assembly, thereby aligning and assembling the upper electrode group and the lower electrode group. RG inserted into the RGB alignment pin portion of the G2 electrode on the top of the RGB alignment pin of the lower assembly unit. B alignment pin hole is formed, the auxiliary pin is installed in the upper assembly unit, when the upper assembly unit and the lower assembly unit is combined, an auxiliary pin hole which is inserted through the auxiliary pin hole of the G1 electrode and G2 electrode is formed, the lower electrode group A split spacer at the bottom for the G2-G3 electrode gap inserted into the bottom assembling apparatus after assembly; The thickness corresponds to the G2-G3 electrode gap in combination with the lower portion of the lower spacer, and each of the upper and lower partition spacers is inserted into the upper assembly apparatus after assembly of the upper electrode group. .

In addition, in the electron gun assembly apparatus according to another embodiment of the present invention, the upper electrode group and the lower electrode group are divided between the G2-G3 electrodes in order to temporarily assemble the electron gun parts and to embed and fix the grid flange of each electrode to the bead glass. The upper assembly and the lower assembly unit is configured to be separated up and down by the upper assembly unit and the lower assembly unit, the guide assembly is guided by the guide post, the electrode by the movable block is installed to be guided to the base block of the upper assembly unit Electron gun assembly apparatus for aligning and assembling the upper electrode group and the lower electrode group by guiding the pressurization and RGB alignment member, and aligning the upper and lower electrode groups by aligning the electrode pressure and the RGB alignment member with the RGB alignment pins inserted and aligned in the RGB openings of the electron gun parts. In: Prevents deformation caused by fusion of bead glass and thermal effects during embedding and prevents G1 electrode and G2 electrode and The movable block is inserted into the auxiliary pin hole formed in the G1 and G2 electrodes and the G3 electrode to precisely set the relative position of the G3 electrode, and the movable block is flowed so as to be relatively positioned between the G1 electrode, the G2 electrode and the G3 electrode. It is characterized in that the base block is installed.

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

6 is an enlarged partial view of the lower end of the upper assembly apparatus 20 according to an embodiment of the present invention, Figure 7 is a split spacer 60 for G2-G3 electrode gap for assembling the electron gun according to the method of the present invention. A top view of 70 is shown.

In FIG. 6, the auxiliary pin 50 is installed on the movable block 22 of the upper assembly device 20 so as to be movable up and down with respect to the movable block 22 by a spring 51, and is movable in front, rear, left and right. Is installed. The electrode pressure and RGB alignment member 23 and the spacer guide pin 25 are installed in the movable block 22 as in the prior art. The flow assist pin 50 is inserted into the auxiliary pin hole formed in the G2 electrode and the G3 electrode, and is installed to flow to the extent that the relative positioning of the G2 electrode and the G3 electrode can be performed.

The relative position of the G2 electrode and the G3 electrode is set by the flow assist pin 50 configured as described above, so that the G2 electrode and the G3 electrode are aligned more precisely than before. In addition, since the flow is possible, the bead glass can be prevented from being deformed due to fusion and thermal effects at the time of embedding.

On the other hand, the floating auxiliary pin 50, when assembling the upper assembly apparatus 20 to the lower assembly apparatus 30, the RGB alignment pin portion for the G2 electrode of the upper end of the RGB alignment pin 33 of the lower assembly apparatus 30. Within the range that can be guided to the auxiliary pin holes of the conventional G2-G3 electrode gap spacer 40 seated at 33 'or the G2-G3 electrode gap split spacer 60, 70, 70' described later. It is preferred to flow at. By flowing to this extent it is naturally assembled to the auxiliary pin hole of the spacer seated in the lower assembly device (30).

In addition, the flow assist pin 50 may be installed on the base block 21 of the upper assembly apparatus 20 under the above-described conditions.

Further, according to another embodiment of the present invention, as shown in FIG. 7, the spacer for the G2-G3 electrode gap aligned with the flow assist pin 50 at the top and guiding the flow assist pin 50 at the bottom. Is divided into split spacers 60 and 70 for upper and lower G2-G3 electrode gaps.

In the G2-G3 electrode spacer split spacers 60 and 70, the above-described flow assist pins 50 are connected to the G1 electrode and the G2 electrode when the upper assembly device 20 and the lower assembly device 30 are combined with each other. Auxiliary pin holes 63 and 73 are formed to penetrate through the auxiliary pin holes, and the entire thickness thereof is formed to correspond to the G2-G3 electrode gap. The splitting spacers 60 and 70 for the G2-G3 electrode gap are inserted into the upper assembly unit 20 and the lower assembly unit 30 at the time of assembling the upper electrode group and the lower electrode group, respectively, to form a G2-G3 electrode gap. Done.

By dividing into the split spacers 60 and 70 for the G2-G3 electrode gap as described above, the relative position of the G2 electrode and the G3 electrode can be set more precisely by the flow auxiliary pin 50, and the accuracy can be further increased. When assembling the upper assembly device 20 and the lower assembly device 30, the gaps are inserted into the auxiliary pin holes 63 and 73 formed in the G2 electrode and the G3 electrode with a tolerance enough to select a defective part. It is preferable that the tolerance of the auxiliary pin hole 73 of the split spacer 70 below is more precisely formed than the tolerance of the auxiliary pin hole 63 guiding the auxiliary pin 50 by the spacer 60. By forming in this way, the degree of alignment of the G2 electrode and the G3 electrode can be more precise.

In addition, the spacer guide pin hole 61 guided to the spacer guide pin 25 so that the side can be gripped by the split spacer 60 for gap formation of the upper G2-G3 electrode prevents the separation of the upper electrode group. It is preferably formed in the split spacer 60 for the G3 electrode gap. Accordingly, the G2 electrode and the G1 electrode can be conveniently assembled to the lower assembly device 30 by reversing the upper assembly device 20 without being separated.

As shown in FIG. 12, the G2-G3 electrode gap split spacer 70 ′ may be formed to have a similar size to that of the G2-G3 electrode gap split spacer 60 so that the guide pin hole is similarly formed. .

In addition, since the flow assist pin 50 rises against the elastic force of the spring 51, the defective G3 electrode can detect the defect without being deformed.

8 is a partially enlarged cross-sectional view of the G2-G3 electrode part for explaining the process of assembling the electron gun according to the method of the present invention.

As shown in FIGS. 1 and 2, an upper electrode group, which is a G1 electrode and a G2 electrode, and a lower electrode group, such as a G3 electrode and a G4 electrode, are disposed together with each spacer in each of the upper assembly apparatus 20 and the lower assembly apparatus 30. . Subsequently, according to the present invention, as shown in FIG. 8, the split spacers 60 and 70 for the G2-G3 electrode gap are disposed on the G2 electrode of the upper assembly apparatus 20 and the G3 electrode of the lower assembly apparatus 30, respectively. Then, the upper assembly device 20 is assembled to be fixed at a constant height through the guide post 32 and the fixing device 32 'on the upper assembly device 30.

By assembling as described above, the G2 electrode and the G3 electrode are precisely aligned to be directly aligned by the flow assist pin 50.

After precisely aligning as described above, the bead glass is melted and fused and buried as shown in FIG. 2, whereby the electron gun is primarily assembled. At this time, even if the heat is affected by the heat of fusion, the deformation of the G2 electrode and the G3 electrode, in particular the G1 electrode, is prevented in the flow of the flow assist pin 50.

In addition, the G2 electrode and the G3 electrode are aligned by the direct flow assist pin 50, thereby facilitating the fabrication of the assembly apparatus and improving the durability of the electron gun assembly apparatus.

9 and 10 show the flow and installation structure of the flow assist pins 50, 50 ', 50 "as an embodiment different from FIG.

In FIG. 9, the flow assist pin 50 ′ is formed to have a rounded end portion through or without a spring 51, 51 ″ and / or washer 51 ′ so that flow can be easily performed on a horizontal plane. And a supporting plate 23a is installed on the rear surface of the movable block 22. In the state where the spring is applied to the supporting plate 23a to lower the movable block 22, the upper assembly device 20 and the lower assembly are assembled. When the flow aid pin 50 'needs to be flown in assembling the device 30, the end of the flow aid pin 50' is rounded so that the flow can be easily made in the horizontal direction. Due to this, when the flow aid pin 50 'is not inserted, the support plate 23a is pushed upward against the spring in the state as shown in FIG. There is no work.

As shown in FIG. 10, the flow assist pin 50 ″ may be installed through the washer 51 ′ and the spring 51 ″. In this case, the washer 51 ′ and the spring 51 ″ may be installed. Since the flow assist pin 50 "is installed, when flow is required in the horizontal direction, the flow is more easily achieved by reducing frictional resistance with elasticity.

Figure 11 shows the structure of the upper assembly apparatus according to another embodiment of the present invention. On the left side of FIG. 11, a flow guide pin 25 ′ for guiding the G2 and G3 electrodes of the movable block 22 is installed to flow with respect to the movable block 22, and on the right side of FIG. 11, the movable block 22 is guided. The movable block guide pin 22 ′ is configured to have a gap such that the movable block guide pin 22 ′ flows in a horizontal direction with respect to the movable block 22. The spring 22a is supported by the protruding jaw 22 "of the movable block guide pin 22 'and is movable through the washer 22b and the bolt 22c in the part which protrudes from the protruding jaw 22". The block 22 is configured to be fluidly supported. Although not shown, it is also possible for the movable block guide pin 22 'to be movable relative to the base block 21 to achieve the same purpose.

In such embodiments, the movable block 22 is flowed as a whole, so that the G1 electrode and the cathode holder can be aligned up to the cathode holder which is not aligned by the auxiliary pin in the electron gun of the separated structure.

According to the configuration and operation of the electron gun assembly apparatus of the color cathode ray tube and the assembly method thereof according to the embodiment of the present invention described above, the configuration of the flow auxiliary pins (50, 50 ', 50 ") and the division for the G2-G3 electrode gap The structure of the spacers 60, 70, and 70 'prevents the bead glass from being deformed due to the fusion and thermal effects during embedding, and can precisely set the relative positions of the G2 electrode and the G3 electrode.

Claims (12)

In the electron gun assembly apparatus 10, which is configured to be divided up and down by the upper assembly apparatus 20 and the lower assembly apparatus 30 for separately assembling the upper electrode group and the lower electrode group between the G2-G3 electrodes, the upper assembly device. (20) and the lower assembly device (30) is guided by the guide post 32, the movable block 22 is guided by the upper assembly device (20), the electrode block pressure and RGB by the movable block 22 The alignment member 23 is guided, the upper electrode group and the lower electrode group are aligned by the electrode pressure and the alignment of the RGB alignment member 23 and the RGB alignment pin 33, and the electron gun parts are assembled to preassemble each electrode. In the assembly method for assembling the electron gun by embedding and fixing the grid flange to the bead glass: Upper assembly to prevent bead glass from deformation due to fusion and thermal effects during embedding and to precisely set the relative positions of the G1 and G2 electrodes and G3 electrodes to precisely align the electrodes inserted into the lower assembly device 30. The G1 electrode, G1 / G2 spacer, and G2 electrode are sequentially inserted through the auxiliary pin hole into the floating auxiliary pins 50, 50 ', and 50 "installed in the device 20, and the upper assembly device 20 is guide post ( 32, the assembly of the lower assembly device 30, the flow auxiliary pin 50 for flowing the G1 and G2 electrode to the G3 electrode to the extent that the relative precision positioning of the G1 and G2 electrode and G3 electrode can be made The electron gun assembly method of the color cathode ray tube, characterized in that inserted into the auxiliary pin hole of the. The method of claim 1, wherein when assembling the upper assembly apparatus 20 to the lower assembly apparatus 30, the flow of the G1 and G2 electrodes to the extent that the relative precision positioning of the G1 and G2 electrodes and the G3 electrode can be achieved, Relative flow to movable block 22 of flow assist pins 50, 50 ', 50 ", relative flow to upper assembly device 20 of movable block 22 and G2 and G3 electrodes of movable block 22 The electron gun assembly method of the color cathode ray tube, characterized in that made by any one of the flow of the flow guide pin (25 '). The upper and lower portions of the upper and lower portions of claim 1, wherein the upper portion and the lower pin hole 63 and 73 are formed to precisely align the flow auxiliary pin 50 at the top and guide the flow auxiliary pin 50 at the bottom. After inserting the integrated spacer or split spacer 60 and 70 for the G2-G3 electrode gap into the upper assembly unit 20 and the lower assembly unit 30, the upper assembly unit 20 and the lower assembly unit 30 are assembled. Electron gun assembly method of a color cathode ray tube, characterized in that. The upper assembly unit 20 and the lower assembly unit 30 for temporarily assembling the electron gun parts to divide and assemble the upper electrode group and the lower electrode group between the G2-G3 electrodes in order to embed and fix the grid flange of each electrode to the bead glass. The upper assembly device 20 and the lower assembly device 30 are guided by the guide post 32 and installed to be guided to the base block 21 of the upper assembly device 20. The electrode pressurization and the RGB alignment member 23 are guided by the movable block 22, and the electrode pressurization and the RGB alignment member 23 are aligned with the RGB alignment pin 33 which is inserted into and aligned with the RGB apertures of the electronic gun parts. In the electron gun assembly apparatus 10 for aligning and assembling the upper electrode group and the lower electrode group by: It is inserted into the auxiliary pin hole formed in the G1, G2 and G3 electrodes to prevent the bead glass from being deformed by the fusion and thermal effects during embedding, and to precisely set the relative positions of the G1 electrode, G2 electrode and G3 electrode. Electron gun assembly apparatus of the color cathode ray tube, characterized in that it comprises a flow auxiliary pin (50) which is installed so as to flow relative to the relative positioning between the G2 electrode and G3 electrode. 5. The flow assisting pin (50) according to claim 4, wherein the flow assisting pin (50) has an end that is not exposed or is exposed through a spring (51, 51 ") and / or a washer (51 ') so that flow can be easily performed on a horizontal plane. The electron gun assembly apparatus of the color cathode ray tube, characterized in that the rounded block is installed on one of the base block (21) and the movable block (22). According to claim 4, After inserting the upper assembly device 20 and the lower assembly device 30, respectively, the upper assembly device 20 and the lower assembly device 30 is assembled to the flow auxiliary pin 50 and the upper Aligned and divided spacer 60 for G2-G3 electrode gaps in the upper and lower portions, with auxiliary pin holes 63 and 73 formed in the spacers for G2-G3 electrode gaps, respectively, to guide the flow auxiliary pin 50 at the bottom. 70); The spacer guide pin 25 can be gripped on the side surface of the split spacer 60 for the upper G2-G3 electrode gap to prevent separation of the upper electrode group by the split spacer 60 for the gap G2-G3 electrode. Electron gun assembly apparatus of a color cathode ray tube, characterized in that protrudes to the outside while having a guide spacer hole (41) guided. The upper assembly unit 20 and the lower assembly unit 30 for temporarily assembling the electron gun parts to divide and assemble the upper electrode group and the lower electrode group between the G2-G3 electrodes in order to embed and fix the grid flange of each electrode to the bead glass. The upper assembly device 20 and the lower assembly device 30 are guided by the guide post 32 and installed to be guided to the base block 21 of the upper assembly device 20. The electrode pressurization and the RGB alignment member 23 are guided by the movable block 22, and the electrode pressurization and the RGB alignment member 23 are aligned with the RGB alignment pin 33 which is inserted into and aligned with the RGB apertures of the electronic gun parts. In the electron gun assembly apparatus 10 for aligning and assembling the upper electrode group and the lower electrode group by: An RGB alignment pin hole 72 inserted into the RGB alignment pin portion 33 ′ for the G2 electrode on the upper portion of the RGB alignment pin 33 of the lower assembly apparatus 30 is formed, and the auxiliary installed in the upper assembly apparatus 20. When the pin 50 combines the upper assembly apparatus 20 and the lower assembly apparatus 30, the auxiliary pin hole 73 inserted through the auxiliary pin hole of the G1 electrode and the G2 electrode is formed, and the lower electrode group is assembled. A split spacer 70 for lower part of the G2-G3 electrode gap inserted into the lower assembly device 30; The thickness of the upper portion of the split spacer (70) corresponds to the G2-G3 electrode gap, the upper portion of the spacer spacer for the G2-G3 electrode gap inserted into the upper assembly device 20 after the assembly of the upper electrode group, respectively. Electron gun assembly apparatus of the color cathode ray tube, characterized in that comprising a. The RGB alignment pin hole 62 inserted into the RGB alignment pin portion 33 'for the G2 electrode on the upper end of the RGB alignment pin 33 of the lower assembly apparatus 30, and the upper assembly apparatus 20. When the auxiliary pin 50 installed in the upper coupling device 20 and the lower assembly device 30 are combined, the auxiliary pin hole 63 inserted through the auxiliary pin holes of the G1 electrode and the G2 electrode is divided into the upper part. Is also formed in the spacers 60 and 70; The auxiliary pin 50 is installed to flow to the base block 21 so that the relative position of the G2 electrode and G3 electrode can be set so as to align the G2 electrode and G3 electrode by the auxiliary pin 50. And guided through the auxiliary pin holes 63 and 73 of the upper and lower split spacers 60 and 70, in which case the upper assembly device 20 and the lower assembly device 30 are more precisely aligned. The tolerance of the auxiliary pin hole 73 of the lower split spacer 70 is more precisely formed than the tolerance of the auxiliary pin hole 63 guiding the auxiliary pin 50 by the upper split spacer 60; The spacer guide pin 25 can be gripped on the side surface of the split spacer 60 for the upper G2-G3 electrode gap to prevent separation of the upper electrode group by the split spacer 60 for the gap G2-G3 electrode. The split spacer 60 for the upper G2-G3 electrode gap protrudes outward with the guide spacer hole 41 guided therein; The flow assist pin 50 is guided by the movable block 22 to be movable, and is installed on the movable block 22 to be able to move vertically elastically by the elastic force of the spring 51. Electron gun assembly device of color cathode ray tube. The upper assembly unit 20 and the lower assembly unit 30 for temporarily assembling the electron gun parts to divide and assemble the upper electrode group and the lower electrode group between the G2-G3 electrodes in order to embed and fix the grid flange of each electrode to the bead glass. The upper assembly device 20 and the lower assembly device 30 are guided by the guide post 32 and installed to be guided to the base block 21 of the upper assembly device 20. The electrode pressurization and the RGB alignment member 23 are guided by the movable block 22, and the electrode pressurization and the RGB alignment member 23 are aligned with the RGB alignment pin 33 which is inserted into and aligned with the RGB apertures of the electronic gun parts. In the electron gun assembly apparatus 10 for aligning and assembling the upper electrode group and the lower electrode group by: It is inserted into the auxiliary pin hole formed in the G1, G2 and G3 electrodes to prevent the bead glass from being deformed by the fusion and thermal effects during embedding, and to precisely set the relative positions of the G1 electrode, G2 electrode and G3 electrode. And the movable block (22) is installed in the base block (21) so as to be flowable to allow relative positioning between the G2 electrode and the G3 electrode. The movable block guide pin 22 ′ for guiding the movable block 22 is formed to flow in a horizontal direction with respect to either the base block 21 or the movable block 22, or the movable block ( An electron gun assembly apparatus for a color cathode ray tube, characterized in that a fixed guide pin (25, 26) or a flow guide pin (25 ') for guiding the G2 and G3 electrodes of the 22) is installed on the movable block (22). The upper assembly unit 20 and the lower assembly unit 30 for temporarily assembling the electron gun parts to divide and assemble the upper electrode group and the lower electrode group between the G2-G3 electrodes in order to embed and fix the grid flange of each electrode to the bead glass. The upper assembly device 20 and the lower assembly device 30 are guided by the guide post 32 and installed to be guided to the base block 21 of the upper assembly device 20. The electrode pressurization and the RGB alignment member 23 are guided by the movable block 22, and the electrode pressurization and the RGB alignment member 23 are aligned with the RGB alignment pin 33 which is inserted into and aligned with the RGB apertures of the electronic gun parts. In the electron gun assembly apparatus 10 for aligning and assembling the upper electrode group and the lower electrode group by: Auxiliary pinholes are formed in the G1, G2, and G3 electrodes, inserted into the auxiliary pinholes, and inserted between the G1, G2, and G3 electrodes to precisely set the relative positions of the G1, G2, and G3 electrodes. G2 / G3 spacer is formed with an auxiliary pin hole for setting the electron gun assembly apparatus of the color cathode ray tube, characterized in that it comprises a secondary pin installed in the upper assembly apparatus (20). The upper assembly unit 20 and the lower assembly unit 30 for temporarily assembling the electron gun parts to divide and assemble the upper electrode group and the lower electrode group between the G2-G3 electrodes in order to embed and fix the grid flange of each electrode to the bead glass. The upper assembly device 20 and the lower assembly device 30 are guided by the guide post 32 and installed to be guided to the base block 21 of the upper assembly device 20. The electrode pressurization and the RGB alignment member 23 are guided by the movable block 22, and the electrode pressurization and the RGB alignment member 23 are aligned with the RGB alignment pin 33 which is inserted into and aligned with the RGB apertures of the electronic gun parts. In the electron gun assembly apparatus 10 for aligning and assembling the upper electrode group and the lower electrode group by: Auxiliary pin holes are formed in the G1 electrode and the G2 electrode to visually check the defective assembly, and the auxiliary pins inserted into the auxiliary pin holes are installed in contact with the support plate 23a which is in contact with the rear surface of the movable block 22. Electron gun assembly device of a color cathode ray tube, characterized in that.