KR19990043921A - Welding assembly and inspection device for electron gun convergence cup and bulb spacer of cathode ray tube - Google Patents

Abstract

The present invention provides a welding assembly and inspection apparatus of an electron gun convergence cup and a bulb spacer of a cathode ray tube using a cam means.

The welding assembly and inspection apparatus includes one positioner 540 at each of the plurality of stations ST1 to ST9 arranged in a line with a predetermined interval to form the welding assembly and inspection line 15, and the plurality of positioners ( The electron gun convergence cup 2 of the cathode ray tube which is placed on top of the cathode ray tube when the 540 is up, performs welding or inspection process and transfers step by step by a transfer means when it is down; In the welding assembly and inspection apparatus of the bulb spacer (3): The positioner in accordance with the cam diagram to rotate the rotary position so that the plurality of positioners (540) up during the process execution time to maintain the position and down during the transfer time The up-down connecting rod 511 and the up-down cams 532 to 535 for converting to the vertical motion of 540 are installed.

Accordingly, the up-down is precisely performed, the up-down timing adjustment is easy, and the vibration can be greatly reduced, thereby preventing malfunction and improving reliability in the welding process or the inspection process.

Description

Welding assembly and inspection device for electron gun convergence cup and bulb spacer of cathode ray tube

The present invention relates to a welding assembly and inspection device of the electron gun convergence cup and bulb spacer of the cathode ray tube.

Generally, a convergence cup and bulb spacer assembly 1 as shown in FIG. 1 is attached to the front end of the electron gun of the cathode ray tube, and three electron beams in a straight line in the case of an inline electron gun at the bottom of the convergence cup 2. A through hole 4 is formed, and a plurality of bulb spacers 3 are usually attached to the side wall portion thereof, and the bulb spacers 3 come into contact with the inner surface of the neck portion of the bulb, so that the front of the electron gun is connected to the neck portion. It will be kept in the center of the circular section.

Therefore, before assembling the electron gun, the bulb cup 3 is assembled to the convergence cup 2 by welding at predetermined positions, and the cup 2 is welded and assembled to the other electrode of the convergence cup 2. And parts are assembled together to form an electron gun.

The convergence cup and bulb spacer assembly 1 of this structure assembles the bulb spacer 3 supplied from the other side in the welding space, usually by laser welding, while transferring the convergence cup 2 along the weld assembly and inspection line. It is then transferred to the inspection station, which is usually inspected by measuring the relative height of the bulb spacer 3 of the assembly 1, and as a result, is unloaded or ejected according to the quantity and the fire. .

However, in the welding assembly and inspection line, the conventional convergence cup 2 is up-down by an air cylinder to perform a predetermined process such as welding in the up state and transfer it in the down state, and the degree of wear and lubrication of the air cylinder is reduced. There is a problem that the up and down is not precisely performed according to the degree, the pressure difference of the air, etc., there is a problem that the operation of adjusting the height and the up-down timing of the air cylinder is required, there is a problem that the adjustment is not difficult.

In addition, operations such as loading / unloading, transferring, finger pick-up chucking, and up and down of the convergence cup 2 and the bulb spacer 3 are conventionally performed. Since it is configured to perform the cylinder, there is a problem that the vibration of the electron gun convergence cup of the cathode ray tube and the bulb spacer is severely generated throughout the welding device, and thus the reliability in the welding process or the inspection process is degraded and malfunctions. This was a frequently occurring problem.

Accordingly, the present invention is to solve the above problems, it is possible to perform the up-down operation for a long time precisely by using the cam mechanism, easy to adjust the height and timing of up and down, and to reduce the occurrence of vibration to improve the reliability It is an object of the present invention to provide a welding assembly and inspection apparatus for an electron gun convergence cup of a cathode ray tube and a bulb spacer.

1 is a cross-sectional view showing the assembly of the electron gun convergence cup and bulb spacer of the cathode ray tube,

2 is a flow chart showing the welding assembly and inspection process of the convergence cup and bulb spacer in FIG.

3 is a schematic plan view of a welding assembly and inspection apparatus of an electron gun convergence cup and a bulb spacer of a cathode ray tube according to the present invention;

4 is a front sectional view showing a welding assembly and an inspection line for inspecting and unloading a bulb spacer after welding and loading a convergence cup according to the present invention;

5 is a plan view of FIG.

6 is a plan view for explaining the operation of the transfer bar using a cam fish;

7 is a front view of FIG. 6 in a state in which the spring means for the left side movement is removed from FIG. 6;

8 is a cross-sectional view of the refilling device for replenishing the convergence cup to the bowl feeder in FIG.

9 shows the configuration of a bowl feeder and a linear feeder for supplying the convergence cup in FIG. 3 together with the location device of the convergence cup and the loading device for welding assembly and loading in the inspection line of FIG. 4. Floor plan shown,

10 is a cross-sectional view of the bowl feeder and linear feeder of FIG.

11 is a side view of FIG.

12 is a plan view showing a bulb spacer feeder together with a bulb spacer pickup and transfer device,

13 is a front view of FIG. 12,

14 is a left side view of FIG. 13;

FIG. 15 is a sectional view showing a stopper of the bulb spacer in FIG. 13;

16 is a plan view showing a pusher device for contacting a convergence cup with a bulb spacer conveyed to a welding station by a pickup and transfer device;

17 is a configuration diagram showing a height inspection device,

18 is a configuration of the tilt angle inspection device,

19 is a time chart of a cam diagram of an up-down cam and a transfer cam of a convergence cup and a rotation operation of transfer, pushing, welding, and a convergence cup of a bulb spacer.

* Explanation of symbols for main parts of the drawings

1: convergence cup and bulb spacer assembly 2: convergence cup

3 bulb spacer 4 electron beam through hole

10: welding assembly and inspection device 11: convergence cup refilling device (11)

12,16 bowl feeder 13,17 linear feeder

14: location and loading device 15: welding assembly and inspection line

18: bulb spacer rotation device 19: pickup and transfer device

20: welding apparatus 21: eject chute

30: pusher 31: fixed base

32: acylinder 33: pusher

40: height inspection device 41: contact block

42: gap sensor 50: tilt angle inspection device

51: Bulb spacer insert block 51 ': Insertion groove

52: defective detection sensor 100: hopper

101,201,301,602,702 Vibration means 102 Information guide

103: overflow prevention plate 200,601: bowl

203: touch sensor 204: Tachibaa

300,701: linear feeder plate 401: acylinder

402: plunger 404: driving roller

405: driven roller 406: optical sensor

407: air cylinder 408: connecting fixture

409: air cylinder 410: adsorption bar

411: vacuum hose 501: fixed plate

502,503: guide block 511: up-down connecting rod

512,513: fixing plate 521 to 524: spring

531: driven rollers 532 to 535: up-down cam

540: positioner 540 ': knockout-bar

550: step motor 551: transfer bar

552: convergence cup seating groove 553: round-trip block

554: guide block 555: spring

556: Chain 557: guide sprocket

558: driven lever 559,561: shaft

560: transfer cam 703: solenoid

704: stopper 801: bulb spacer rotator

802: rotary cylinder 810; Pickup finger

811: air chuck

In order to realize the above object, the present invention is provided with one positioner in each of a plurality of stations arranged in a line with a constant interval to form a welding assembly and inspection line, the electron gun of the cathode ray tube when the plurality of positioners are up A welding assembly and inspection apparatus for an electron gun convergence cup of a cathode ray tube and a bulb spacer, wherein a convergence cup is placed on top thereof to perform a welding or inspection process and transfer step by step by a transfer means when the down is carried out. And up-down connecting rod and up-down cam are installed to convert the rotational movement to the up-down movement of the positioner according to the cam diagram so as to keep it up during the process execution time, and keep it in its position, down to maintain it during the transfer time. Assembly and inspection of electron gun convergence cup and bulb spacer Provide private equipment.

A driven roller may be further provided at the end of the up-down connecting rod to roll-contact the cam surface of the up-down cam to up-down the connecting rod. In this case, the down stroke may be removed by a tension spring in addition to the weight of the down stroke. It can be configured to prevent excessive rise by inertia during the upstroke and to be prevented by the compression spring, and a fixing plate is installed to fix the two or more up-down connecting rods up and down so that the two or more up-down connecting rods follow one cam curve. It may be.

In the welding station of the station, the positioner is connected to the up-down connecting rod via the step motor, so that the positioner can be intermittently rotated at a predetermined rotation angle position during the up time to weld a plurality of bulb spacers at a time. The positioner is down and the transfer is performed.

It may be provided with a handle fixed to the axis of the up-down cam to adjust the action time of the up-down cam, it is preferable to be fixed to each shaft to be assembled by a bolt or the like so as to adjust the relative angular position of the up-down cam. Do.

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

First, in the overall schematic plan view of the welding assembly and inspection apparatus of the electron gun convergence cup and bulb spacer of the cathode ray tube according to the present invention as shown in FIG. 3, the convergence cup 2 is a refilling device 11, a bowl feeder 12. To the first station ST1 of the welding assembly and inspection line 15 while the initial positioner 540 (shown in FIGS. 4 and 6) is up, via the linear feeder 13 and the location and loading device 14. Loaded and transferred along the respective stations ST1 to ST9 of the weld assembly and inspection line 15, while the convergence cup 2 is transferred one by one while the positioner 540 is down to the corresponding stations ST1 to ST9. The process will be carried out.

The bulb spacer 3 is supplied to the welding station ST5 via the bowl feeder 16, the linear feeder 17, the rotary device 18, the pick-up and transfer device 19, and the convergence cup by the pusher device 30. Laser-welded by the welding apparatus 20 in the state supported by the predetermined position of (2), and repeatedly carried out the required number of bulb spacers 3, and then through the ejection chute 21 through various inspection processes. Is ejected along the ball.

2 is a process diagram performed in the welding assembly and inspection apparatus of the electron gun convergence cup and bulb spacer of the cathode ray tube according to the present invention described above. In Fig. 2, the convergence cup (2: denoted C / C in Figs. 2 and 19) and the bulb spacer (3: denoted B / S in Figs. 2 and 19) are processed and prepared, respectively, in steps S1 and step. In step S21, the bowl feeders are fed into the bowl feeders 12 and 16, and are linearly fed in steps S2 and S22 by the linear feeders 13 and 17 connected to the bowl feeders 12 and 16. As such, the bowl feeders 12 and 16 and the linear feeders 13 and 17 are the convergence cups 2 and the bulbs accommodated by the bowls 200 and 601 and the vibration means 201 and 601 in FIGS. 9, 10, 12, and 13. When the spacers 3 are discharged one by one, the linear feeders 13 and 17 composed of the vibrating means 301 and 701 and the linear feeder plates 300 and 701 are similarly continuously flowed in a row. In the case of the convergence cup (2), the size of the convergence cup (2) is larger than the bulb spacer (3) is limited because the number that can be stored in the bowl 200 may be provided with a separate refill device (11) in FIGS. The refilling apparatus 11 includes a hopper 100 capable of storing a large amount of convergence cup 2, a flow guide 102 of the convergence cup 2 communicated with the lower end of the hopper 100, It comprises a vibration means 101, the vibration means 101 by the detection signal when there is no convergence cup (2) on the bottom of the bowl 200 by the Tachiba 204 and the touch sensor 203. This operation causes the convergence cup 2 to flow through the flow guide 102. In order to prevent the convergence cup 2 from flowing excessively from the hopper 100 into the flow guide 101, an overflow plate 103 is installed on the top of the flow guide 101 as shown in FIG. 8. Can be.

In FIG. 2, in the case of the convergence cup 2 through the linear feeding steps (steps S2 and S22), in the positioning step (step S3), the convergence cup 2 is positioned in the weld assembly and inspection line 15. At 540, the position of the convergence cup 2 is first set so that the position can be set through the electron beam passing hole 4. In step S4, the welding assembly and inspection line 15 is loaded into the initial positioner 540.

That is, the convergence cup 2 continuously fed in a row from the linear feeder 13, as shown in Fig. 11, which is the right side view of Figs. 9 and 9, has a plunger reciprocating by the air cylinder 401 at its exit. By advancing 402, the driving roller 404 and the driven roller 405 are engaged with each other to rotate together when the driving roller 404 rotates. At this time, the other convergence cup 2 is in the standby state at the outlet of the linear feeder 13, and when the plunger 402 is backward, the outlet is opened so that one convergence cup 2 can be discharged, The above operation is repeated.

During the rotation, when the position of the electron beam through hole 4 is confirmed by the optical sensor 406, the driving roller 404 immediately stops by the confirmation signal, and the suction bar 410 standing on the upper side is stopped. When the air cylinder 408 is inserted into the convergence cup 2 as the advancement of the air cylinder 408 and the vacuum state is made through the vacuum hose 411, the convergence cup 2 is attached to the suction bar 410, and then the air cylinder 408 ) Retracts and the air cylinder 407 retracts so that the convergence cup 2 is positioned above the positioner 540 of the first station ST1 of the weld assembly and inspection line 15. At this time, when the air cylinder 408 is advanced and the vacuum state of the vacuum hose 411 is released at the same time, the convergence cup 2 has a positioning pin protruding from the upper end of the positioner 540 with the electron beam of the convergence cup 2. It is loaded while being inserted into the through hole (4). The connecting fixture 408 is a fixing device for fixing the air cylinder 408 to the connecting rod of the air cylinder 407.

In this way, the convergence cup 2 of which the loading operation is completed is transferred one step through the welding assembly and inspection line 15 to perform a predetermined process at each station ST1 to ST9 and be discharged.

In the welding assembly and inspection apparatus according to the present invention in the welding assembly and inspection line 15, a positioner 540 is disposed at each of the stations ST1 to ST9, and the plurality of positioners 540 are moved up during the process execution time. Then, it is held in its rising position, and then in the down state, the down state (step S5) is maintained for the transfer time to transfer to the next stations ST1 to ST9. For example, in FIG. 2, after the convergence cup 2 is loaded, the positioner 540 is lowered (step S5) and is moved to the welding station ST5 in step S6. However, in FIG. 3 and below, three steps are interposed between the welding station ST5 and the loading station ST1, indicating that other processes may be performed. For example, the inspection of the convergence cup 2 itself or an atmospheric process may be mentioned.

4 to 6 disassemble the positioner 540 of the welding assembly and inspection line 15, its up-down device and the transfer means. In FIG. 4, the transfer bar 551 shown in FIG. 6 is shown by the dashed-dotted line and in FIG. 5 in the removed state. In FIGS. 4 and 5, a positioner 540 is disposed at each of the stations ST1 to ST8, and the positioner 540 is disposed up and down via an up-down connecting rod 511 by up-down cams 532 to 535 installed at a lower portion thereof. Up and down along a predetermined cam diagram. The final station ST9 is provided with a knockout-bar 540 'which is fixed to the positioner 540 of the previous station ST8 and moves up and down together, and is transferred to the station ST9 when it is up after transfer. The assembled and inspected convergence cup and bulb spacer assembly 1 is discharged from the transfer means into the eject suit.

Cam diagrams of the up-down cams 532 to 535 are shown in FIG. 19 as an example. 19, the up-down cam diagram C / C UP / DOWN of the convergence cup 2 is down at the time of transfer T of the convergence cup 2 in the transfer diagram C / C TRANSFER of the convergence cup 2; Must be up (e.g., between 9 and 360 degrees) and up at the time of untransfer (UT) for return (between 1 and 5). In addition to these conditions, it is necessary to maintain the up state for a time required to perform a predetermined process at each station ST1 to ST9. (between θ1 and θ8)

This up state is required, for example, during the transfer and pushing and welding times of the plurality of bulb spacers 3 in the welding station ST5. That is, in the welding station ST5, the positioner 540 is connected to the up-down connecting rod 511 via the step motor 550 as shown in FIG. 3, and C / C ROTATING and R / S TRANSFER in FIG. As shown in the PUSHING, WELDING diagram, the positioner 540 is configured to be intermittently rotated at a predetermined rotational angle and weld the bulb spacer 3 at each rotational angle, respectively. After welding, it goes down. The stations ST6 to ST7 may be appropriately selected between θ1 and θ8 during the time required for the inspection process, and thus the cam diagram may be changed depending on the characteristics of each process. In FIG. 4, fixing plates 512 are provided to fix two or more up-down connecting rods so that the stations ST2 to ST4 follow the cam diagram of one up-down cam 533, and similarly in stations ST6 to ST8. Fixing plates 512 and 513 are installed.

On the other hand, each connecting rod 511 is configured to reduce the resistance through the rolling motion by contacting the cam surface of the up-down cams 532 to 535 through the driven roller 531 at the lower end, the up-down cams (532 to 535) The handle 22 is fixed to the shaft 530 of the up-down cams 532-535 to adjust the point of action of the. Accordingly, the point of action of the cam can be easily adjusted when it differs from other movements, and when the point of action of any one of the cams differs, the up-down cams 532 to 535 each have a bolt 532 on the shaft 530. And 535 to be assembleably fixed, the mutual relationship can be adjusted.

In addition, as shown in Figure 3 can be configured to ensure that the down stroke by the tension spring (522,524) in addition to the self-weight during the down stroke, and compression soup (521,523) to prevent excessive rise due to inertia during the up stroke ) May be installed between the guide blocks 502 and 503 fixed to the fixing plate 501 and the connecting rod 511.

5 and 6 show the transfer means. The transfer means has a pair of transfer bars 551 fixed by the reciprocating block 553 at a predetermined interval that the positioner 540 can be up and down, and is guided by the guide block 554, and the distance between the stations. By reciprocating as much as possible to transfer the convergence cup (2). In the transfer bar 551, the convergence cup seating grooves 552 are formed inward to each other so that the convergence cup 2 is held at a predetermined position when the positioner 540 is down by the up-down cams 532 to 535. It is inserted into the seating groove 552. As such, the convergence cup 2 is transferred from the seated groove 552 to the seated groove 552, and is up at a predetermined position by the positioner 540 to perform a predetermined process.

7 shows an example of a reciprocating mechanism of a transfer bar 551 and a reciprocating block 553 using a cam and a spring. A tension spring 555 is installed at one end of the reciprocating block 553 to move to the right in the drawing, and the other end is connected to one end of the driven lever 558 via a chain 556 and a guide sprocket 557. The other end of the driven lever 558 is fixed to the frame by the shaft 559, and the transfer cam 560, which rotates together with the shaft 561 in the middle, contacts the driven lever 558 at the bottom thereof, By rotating 558 in accordance with the cam diagram, the reciprocating block 553 moves to the left against the elastic force of the tension spring 555 via the chain 556. In the case where the transfer means has such a structure and the same axis as the axis 530 of the up-down cam or the same rotation as the axis 530, the cam curve of FIG. 19 is changed by the C / C TRANSFER of FIG. In addition to such a structure, a conventional air cylinder may be used as the transfer means.

In Fig. 2, the bulb spacer 3 is fed in a continuous alignment state from the linear feeder 17 in step S22, and then the bulb spacer rotator of the rotary device 18 at the end of the linear feeder plate 701 in Figs. The solenoid 703 and the stopper 704 operate to flow to 801 and not to flow one or more of the bulb spacers from the ends of the linear feeder plate 701 as shown in FIGS. 13 and 15. Stop the flow of 3). Thereafter, when the rotary cylinder 802 rotates in step S23, the rotator 801 rotates together to rotate the bulb spacer 3 by 90 degrees in an upright state, and at this time, the pick-up finger 810 of the air chuck 811 By operation, the bulb spacer 3 in an upright state is gripped as shown in Figs. 12 to 14 (step S24).

In this way, after being held by the pick-up finger 810, the rotator 801 returns to its original state, and as shown in FIG. 12, the air chuck 811 is positioned at the position 811 ', that is, the welding station and the inspection line 15 at the welding station. It transfers by the reciprocating means which omits illustration at ST5 (step S25). By moving in this manner, the upright bulb spacer 3 held by the pick-up finger 810 is positioned at a predetermined angle of the convergence cup 2 located on the up positioner 540 of the welding station ST5 in FIG. It is adjacent to the side wall surface of. In this state, as shown in FIG. 16, the bulb spacer 3 is pushed toward the convergence cup 2 by the pusher device 30, and the air spacer 811 is released, so that the bulb spacer 3 is picked up by the pick-up finger 810. In contact with the convergence cup (2), in which the pick-up finger (810) returns to its original position with the air chuck (811) and is in standby to pick up the next bulb spacer (3). (Step S7 '). The fixing step (step S7 ') may further include means for reciprocating movement in a direction perpendicular to the reciprocating movement, in addition to the reciprocating movement means in order to ensure the departure of the pick-up finger 810 and return to the original position. have. The reciprocating means not shown may be a conventional reciprocating means such as an air cylinder or the like, and may also be constituted by the transfer cam 559 and the spring 555 shown in FIGS. 6 and 7.

As described above in the fixed state in which the bulb spacer 3 is pushed to the convergence cup 2, the welding station 20 fires the laser by the welding device 20 while maintaining the up position of the positioner 540 in the welding station ST5. The bulb spacer 3 is welded to the convergence cup 2 (step S8 in FIG. 2), and upon completion of welding, the bulb spacer 3 is released (step S8 '), and the step motor 550 is predetermined. After rotation by the angular displacement of (step S9), it is determined by counting whether the previous bulb spacer 3 is welded in step S10. If the previous bulb spacer 3 is not welded, the process returns to step S7 'again. Step S10 is repeated. Accordingly, the steps S21 to S25 for supplying the bulb spacer 3 may transfer a predetermined number of bulb spacers while transferring the convergence cup 2 onto the positioner 540 and up the positioner 540. And (3). That is, as shown in the B / S TRANSFER, PUSHING, WELDING diagram and C / C ROTATING diagram in Fig. 19, the transfer of the bulb spacer 3 during the up time (θ1 to θ8) of the C / C UP / DOWN diagram is shown. , Pushing and fixing the welding and rotation of the convergence cup 2 to a predetermined angular position are repeated N times when the N bulb spacers 3 are attached to one convergence cup 2. When the transfer of the bulb spacer 3 together with the chuck 811 is completed, pushing is performed by the pusher device 30 and the return of the air chuck 811, that is, the untransferring UT is performed. At the time when the pushing is completed, the welding W1 to WN is performed. Therefore, in consideration of such a timing chart, control by the controller or the transfer of the bulb spacer 3 to the welding station is performed by the transfer cam 559 and the spring 555 shown in FIGS. 6 and 7. In the case of the configuration, the cam surface curve or the cam curve of the transfer cam should be selected in consideration of the B / S TRANSFER diagram of FIG. 19 as an example. In the C / C ROTATING diagram of FIG. 19, the rotation is first made to rotate to a predetermined rotation angle position. However, if the bulb spacer 3 can be welded directly at the transfer position of the convergence cup 2, first, the convergence cup ( 2) It is not necessary to rotate (R1) and the convergence when the bulb spacer (3) is welded at each position where the convergence cup (2) and the positioner (540) are not returned to their original state (RN). It will be necessary to return the convergence cup 2 and the positioner 540 to their original state before the down start time θ8 of the cup 2.

After the welding of all bulb spacers 3 is completed in step S10 in FIG. 2, the positioner 540 is lowered in step S11, and the convergence cup 2 is positioned in the seating groove 552 of the transfer bar 551. (2) is transferred to the inspection stations ST6 and ST7 by the rotation of the transfer cam 560 and the action of the tension spring 555. (Step S12) In the inspection stations ST6 and ST7, FIGS. 17 and 18 are shown. As shown, the weld assembly state of the bulb spacer 3 to the convergence cup 2 is examined by the height inspection device 40 and the inclination angle inspection device 50 (step S13), and the transfer bar 551 in FIG. As described above, when the positioner 540 is up by the rotation of the up-down cam 535, the contact block 41 is positioned at the position corresponding to the height of each bulb spacer 3, and the contact with the contact block 41 is made. By the gap sensor 42, the amount and height of the height of the bulb spacer 3 are determined. In FIG. 18, the inclination angle inspection device 50 includes an insertion block 51 and a defect detection sensor 52, and the insertion block 51 has an insertion groove 51 ′ at a position where the bulb spacer 3 can be inserted. If the bulb spacer 3 is not inserted into the insertion groove 51 'when the positioner 540 is up, the defect detection sensor 52 treats the defect as defective. On the other hand, after the positioner 540 is up, the height inspection device 40 and the inclination angle inspection device 50 may be configured to ascend after being lowered and inspected as shown by arrows in FIGS. 17 and 18.

When the inspection process is completed in this way, the convergence cup 2 is again transferred and unloaded in step S14. In FIG. 4 and FIG. 5, the air is transferred to the station ST9 after the first standby at the station ST8 and discharged to the eject chute 21 by the eject bar 540 '.

Although the specific illustration is abbreviate | omitted in the eject chute 21, the well-known rotating door apparatus is installed so that it may discharge | separate according to quantity and a ball.

According to the configuration and operation of the welding assembly and inspection apparatus of the electron gun convergence cup and bulb spacer of the cathode ray tube according to an embodiment of the present invention as described above, the welding assembly and inspection line 15 using a cam without using an air cylinder Up and down of the positioner 540 of the up and further attaching the handle to the cam shaft and fixing the cam to the cam shaft to be easily disassembled and assembled, the up and down is precisely performed, the up and down timing adjustment work can be greatly reduced and vibration can be greatly reduced There is an effect of preventing malfunction and improving the reliability in the welding process or the inspection process.

Claims (5)

One positioner 540 is provided at each of the plurality of stations ST1 to ST9 arranged in a line with a predetermined interval so as to form the welding assembly and inspection line 15, and the cathode ray when the plurality of positioners 540 are up. The electron gun convergence cup 2 of the tube and the bulb spacer 3 of the cathode ray tube which are placed on top of the tube to perform welding or inspection process and transfer step by step by the transfer means when down. In the welding assembly and inspection apparatus; An up-down connecting rod 511 for converting the rotational motion into the vertical motion of the positioner 540 according to the cam diagram to keep the plurality of positioners 540 up and down during the process execution time and to maintain the down position during the transfer time. Welding assembly and inspection device of the electron gun convergence cup and bulb spacer of the cathode ray tube, characterized in that the up and down cams (532 to 535) are installed. The driving roller 531 of claim 1, further comprising a driven roller 531 installed at an end portion of the up-down connecting rod 511 to roll-contact the cam surface of the up-down cams 532 to 535 to up-down the connecting rod 511. In this case, the down stroke is ensured by tension springs 522 and 524 in addition to its own weight during the down stroke, and an excessive rise by inertia during up stroke is prevented by the compression springs 521 and 523. Welding assembly of the electron gun convergence cup of the cathode ray tube and the bulb spacer, characterized in that fixing plates 512 and 513 may be installed to fix the two up-down connecting rods 511 up and down to follow one cam curve. And inspection apparatus. According to claim 1, in the welding station (ST5) of the stations (ST1 to ST9) positioner 540 is connected to the up-down connecting rod 511 via the step motor 550, the positioner 540 is up and predetermined Welding assembly and inspection apparatus of the electron gun convergence cup and the bulb spacer of the cathode ray tube, characterized in that it is rotated intermittently at every rotation angle, and then down after welding a plurality of bulb spacers (3). 4. A handle (22) according to any one of the preceding claims, having a handle (22) fixed to the shaft (530) of the up and down cams (532 to 535) to adjust the point of action of the up and down cams (532 to 535). Welding assembly and inspection apparatus of the electron gun convergence cup and bulb spacer of the cathode ray tube. 5. The cathode ray tube according to claim 4, wherein the up-down cams 532 to 535 are assembleably fixed by bolts 532 'to 535' so as to adjust their interconnection relationship to the shaft 530, respectively. Assembly and inspection equipment for electron gun convergence cup and bulb spacer.