KR940011922B1 - Automatic welding device of a getter and getter spring - Google Patents

Abstract

The device for automatically supplying and welding a getter and getter spring applied for the electron gun of color Braun tube, simplifies the necessary processes on manual welding and decreases the inferiority of the welded products. The device comprises the getter spring supply section for elevating the getter spring to a certain level using a detecting means, picking the spring on the top of the level and supplying the spring to the welding position; getter supply section for supplying and positioning the getter at the welding position; automatic welding section for performing the pressurized welding using a pair of upper/lower electrodes.

Description

Automatic welding device of getter and getter spring

1 is a getter and getter spring configuration of a typical color-brown tube electron gun.

2 is a side view of a manual welding apparatus of the prior art.

3 is a block diagram of the automatic welding device of the present invention.

* Explanation of symbols for main parts of the drawings

10: automatic welding part 11: phase electrode

12 lower electrode 13 constant cylinder

14: sewer cylinder 15: elastic spring

20: getter supply 21: bowl feeder

22: Straight Peter 23: Pneumatic Cylinder

30: getter spring supply part 31: magazine

32: brake motor 33: rack

34: pinion 35: light sensor

36: vacuum pad 37: finger cylinder

38: vertical cylinder 39: horizontal cylinder

40: rotating cylinder

The present invention relates to a device for automatically supplying and welding getters and getter springs used in electron guns of color-brown tubes, and in particular, aims to reduce the man-hours required for manual welding and lower the defective rate.

In general, the getter 2 used for the electron gun of the color-brown tube is welded and supported by the getter spring 3 at the end of the electron gun as shown in FIG. 1. The conventional welding technique of the getter 2 and the getter spring 3 is performed. As shown in FIG. 2, when the getter 2 is first placed on the table 1 position jig 4, the pedal 5 placed on the floor is pressed while the getter spring 3 is in contact with the manual welder. Since the upper electrode 6 of the lowering has been performed by manual welding, such a manual welding device manually supplies the getter and the getter spring to the welding position one by one, and welding is performed by a separate operation. Since welding strength is determined by pressing force, welding is not uniform and welding reliability is lowered.

The present invention has been made to solve the above problems, and in particular, it constitutes a getter supply part and a getter spring supply part for uniformly supplying the getter and the getter spring, and the upper and lower electrodes in the state where the welding conditions by the two supply parts are satisfied. It is characterized in that the welding portion for uniformly welding to enable automatic welding by unmanned, it will be described in detail by the accompanying drawings as follows.

That is, as shown in FIG. 3, the automatic feeding and welding device of the getter and getter spring of the present invention automatically supplies the getter spring supply unit 30 and the getter 2 for automatically supplying the getter spring 3. It is made of a getter supply unit 20 and the automatic welding unit 10 for welding the getter and the getter spring in the state of the operation of the two supply unit 20, 30 is completed.

The getter spring supply unit 30 is a magazine 31 for loading the getter spring 3 and the brake motor 32 of the magazine lower part for pushing up the getter spring 3 loaded on the magazine 31. ), The rack 33 and the pinion 34, the sensor 35 at the top of the magazine for detecting the moving height of the getter spring 3, and the vacuum suction for picking up the getter spring 3 after the sensor operation. And a horizontal cylinder (39) and a rotating cylinder (40) for positioning the getter spring (3) in the welding position, as well as a vacuum pad (36), a finger cylinder (37) and a vertical cylinder (38) as an apparatus. The getter supply unit 20 is composed of a bowl feeder 21 and a linear feeder 22 for automatically supplying the getter 20, and a pneumatic cylinder 23 for correcting the position of the getter 2, The automatic welding water 10 in the above is a phase electrode 11 and a charge for pressurized welding at a constant pressure in the upper, lower, double Pole 12, upper and lower vertical cylinders 13 and 14 for elevating the two electrodes 11 and 12 to the welding position, and an elastic spring 15 for adjusting the welding strength according to the welding state. Configure.

Referring to the operation of the present invention configured as described above, the getter spring 3 is mounted on the magazine 31 of the getter spring supply unit 30 in a predetermined direction to drive the lower brake motor 32. Accordingly, the rotational force of the motor is changed into a linear motion by the rack 33 and the pinion 34 so as to raise the getter spring 3 loaded in the magazine 31 until it is detected by the upper optical sensor 35, and thus the optical sensor. (35) is operated and the vacuum pad 36 and the finger cylinder 37 of the upper magazine is lowered by the vertical cylinder 38 to suck one of the upper getter spring (3) by vacuum and then to the finger cylinder (37) At the same time, as the horizontal cylinder 39 moves forward, the rotating cylinder 40 rotates to bring the getter spring 3 into the welding position of the automatic welding part 10.

When the movement of the getter spring 3 is completed, the getter supply unit 20 sends the straighter by aligning the getter by the shaking action of the bowl feeder 21 of the getter supply unit 20 and the getter (10) from the straight feeder 22 to the automatic welding part 10. 2) the feeder stops in accordance with the moving position of the getter spring 3, and the getter supply is completed by correcting the correct position with the pneumatic cylinder 23 at the bottom.

As described above, when the automatic supply of the getter spring 3 and the getter 2 is completed, the upper and lower vertical cylinders 13 and 14 of the automatic welding part 10 are welded to the upper and lower electrodes 11 and 12. The automatic welding to the desired welding strength is completed by adjusting the welding strength of the elastic spring 15 by moving to.

Accordingly, the present invention loads the getter spring in the form of a magazine and automatically feeds the getter spring to a predetermined position using a vacuum adsorption system and a rotating cylinder by automatically feeding the getter spring to a predetermined position and automatically supplying the getter from the bowl feeder. Since the welding is carried out automatically by using a constant pressure after the cylinder has the effect of improving the welding reliability as well as unmanned.

Claims (4)

A getter spring supply part which moves the uniformly loaded getter springs to a certain height by the sensing means and picks up the upper getter springs and supplies them to the welding position, a getter supply part which supplies the getters and puts them in the welding position; A getter and a getter spring automatic welding device, comprising: an automatic welding part for performing positive pressure welding to upper and lower electrodes while a welding condition is satisfied by a supplying process. The method of claim 1, wherein the getter spring supply unit 30 is a magazine 31 for loading the getter spring, and a brake motor and a rack installed at the bottom to push the getter spring (3) loaded in the magazine to the top and A pin cylinder, a sensor cylinder 35 for sensing the movement height of the getter spring 3, and a finger cylinder attached to a vacuum pad vertically moved by the upper vertical cylinder after the sensor operation to suck the upper getter spring 3 in a vacuum. And a rotary cylinder for rotating the vacuum-adsorbed getter spring 3 properly in the welding direction, and a horizontal cylinder for moving to the welding position. 2. A getter and getter spring automatic welding device according to claim 1, characterized in that it consists of a lower electrode (12) mounted on the sewer vertical cylinder (4) and an upper electrode (11) mounted on the constant vertical cylinder (13). 4. The automatic welding device of a getter and getter spring according to claim 3, wherein the constant cylinder (13) is provided with an elastic means (15) for adjusting welding strength.