KR101698191B1 - tungsten inert gas arc welders having length adjustable tungsten electrode - Google Patents

Abstract

The present invention relates to a TIG welding machine in which a tungsten electrode is adjustable in length, comprising: a main body for receiving at least a welding line including a power line for power supply and providing a user's gripping space; An electrode collet chuck having a size and shape corresponding to the outer diameter of the round-bar-shaped tungsten electrode, the electrode collet chuck being accommodated in the tungsten electrode; An electrode collet which is located outside the electrode collet chuck 530 and pushes the electrode collet chuck 530 in one direction by a predetermined distance while supplying an inert gas into the inside of the electrode 560; An electrode adjusting bar provided at a rear end of the electrode collet chuck for pushing the tungsten electrode in one direction by a user's pressing operation; An electrode adjusting bar housing provided outside the electrode adjusting bar and providing a predetermined internal space necessary for the operation of the electrode adjusting bar; And a ceramic nozzle provided at an end of the tungsten electrode on which the tungsten electrode is discharged and forming a discharge port for the welding gas and the tungsten electrode, wherein the length of the tungsten electrode is adjustable.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a TIG welder having a length adjustable tungsten electrode,

The present invention relates to a TIG arc welder having a length adjustable tungsten electrode.

Arc welding is the most widely used joining method currently used for joining metal materials by fusing welding using an arc as a heat source.

Generally, arc welding can be classified into carbon arc welding using carbon electrode and metal arc welding using metal electrode depending on the type of electrode used, and different types of welding can be performed depending on the respective welding method, cooling method, A welding operation is performed using a torch.

In particular, carbon arc welding is a method in which an arc is generated between a welding base material and a carbon electrode to melt an electrode. Metal arc welding generates an arc between electrodes made of the same kind of metal as the welding base material, Thereby bonding the base material. Accordingly, in the metal arc welding, since the continuous supply of the electrode consumed in the welding torch is required, the electrode portion having a shape different from that of the welding torch for the carbon arc welding is obtained.

Also, in case of welding method, Shield Metal Arc Welding (SMAW), which is most widely used at present, is used in the category of GMAW (Gas Metal Arc Welding) And is classified into CO ₂ , MIG, MAG, and Ar welding depending on the type of gas.

In addition, FCAW (Flux Cored Arc Welding) has a working principle such as GMAW, but it uses a self-protection method in which the flux is filled in the wire, And the welding torch having a structure different from that of the GMAW method is used.

That is, in the prior art, each welding torch corresponding to each welding method is used, and a water-cooled type and an air-cooled welding torch are also used separately according to the cooling method.

In addition, the welding torch may be classified into large, medium and small types according to the length of the torch. In order to perform various welding operations, the operator must purchase and use various welding torches according to the welding method, .

On the other hand, Korean Patent No. 10-1412374 entitled " Welding torch and its assembling method " discloses a technique for easily assembling and disassembling a contact tip, which frequently occurs during welding, without a separate tool.

Korean Patent Laid-Open Publication No. 10-2014-0078826 " Welding Torch " discloses a welding torch capable of easily separating a welding tip from a tip holder.

In other words, in the conventional technologies, the welding part is changed only according to the welding method, and the welding part is changed only by the welding method. I can not do it.

KR 10-1412374 B1 KR 10-2014-0078826 A

SUMMARY OF THE INVENTION It is an object of the present invention to provide a tungsten electrode which includes a main body accommodating therein a welding line including at least a power supply line for power supply and providing a user's gripping space, An electrode collet chuck having a size and a shape corresponding to the tungsten electrode; An electrode collet which is located outside the electrode collet chuck 530 and pushes the electrode collet chuck 530 in one direction by a predetermined distance while supplying an inert gas into the inside of the electrode 560; An electrode adjusting bar provided at a rear end of the electrode collet chuck for pushing the tungsten electrode in one direction by a user's pressing operation; An electrode adjusting bar housing provided outside the electrode adjusting bar and providing a predetermined internal space necessary for the operation of the electrode adjusting bar; And a ceramic nozzle provided at an end of the tungsten electrode on which the tungsten electrode is discharged and forming a discharge port for the welding gas and the tungsten electrode, wherein the length of the tungsten electrode is adjustable.

The present invention relates to a TIG welding machine in which a tungsten electrode is adjustable in length, comprising: a main body for receiving at least a welding line including a power line for power supply and providing a user's gripping space; An electrode collet chuck having a size and shape corresponding to the outer diameter of the round-bar-shaped tungsten electrode, the electrode collet chuck being accommodated in the tungsten electrode; An electrode collet which is located outside the electrode collet chuck 530 and pushes the electrode collet chuck 530 in one direction by a predetermined distance while supplying an inert gas into the inside of the electrode 560; An electrode adjusting bar provided at a rear end of the electrode collet chuck for pushing the tungsten electrode in one direction by a user's pressing operation; An electrode adjusting bar housing provided outside the electrode adjusting bar and providing a predetermined internal space necessary for the operation of the electrode adjusting bar; And a ceramic nozzle provided at an end of the tungsten electrode on which the tungsten electrode is discharged and forming a discharge port for the welding gas and the tungsten electrode.

Meanwhile, the electrode collet chuck is formed in a circular tube shape having a diameter that allows the tungsten electrode 510 to be received therein, and an electrode collet chuck tapered portion 532 extending outward is formed on the front side, And an electrode adjusting bar fixing part 534 is formed to be fastened to the electrode adjusting bar 570.

The electrode collet 550 has a portion formed with a gas discharge port 552 through which an inert gas is discharged into the chamber 560 provided at one side of the electrode collet and a portion formed with a gas discharge port 552 And an electrode collet tapered portion 554 for causing interference with the electrode collet chuck taper portion 532. The inert gas 560 is filled with inert gas And the electrode collet chuck 530 is pushed forward by a predetermined distance.

The electrode adjusting bar is guided by the electrode adjusting bar housing 590 in order to push the electrode collet chuck 530 forward, and the electrode adjusting bar housing 590 and the electrode adjusting bar 590, The electrode adjustment bar spring 574 is elastically compressed during the pressing operation of the electrode adjustment bar button 574 and returns to the initial position when the pressing operation is terminated, 572 are provided.

The lower end of the electrode adjusting bar button 574 is formed to have a larger diameter than the latching jaws, So that the bar spring 572 can maintain a fixed position between the lower end of the electrode adjusting bar button 574 and the engaging jaw.

When the user presses the electrode adjustment bar button 574, the electrode adjustment bar 570 pushes the electrode collet 550 forward while being drawn into the electrode adjustment bar housing 590, The electrode collet chuck 530 moves to the rear side by the electrode adjusting bar spring 572 when the pressing operation of the electrode adjusting bar button 574 is canceled. At this time, The tungsten electrode 510 is fixed while the electrode collet chuck taper portion 532 is pressed by the electrode collet chuck taper portion 532.

When an operator presses the electrode adjustment bar button 574 in a state where the tungsten electrode 510 is constrained by the tapered portions 532 and 554 of the electrode collet chuck 530 and the electrode collet 550, The electrode collet chuck 530 is drawn out to the front side and the interference is canceled, so that the binding force applied to the tungsten electrode 510 is canceled.

Meanwhile, the tungsten electrode 510 can be drawn out to a predetermined length due to its own weight as the tungsten electrode 510 is in a restrained state, and the electrode collet chuck 530, which is returned to the initial position when the electrode adjusting bar button 574 is depressed So that a fixed position is maintained.

According to the present invention, when the electrode collet 550 is pushed forward, the electrode collet taper portion 554 formed on the front side of the electrode collet 550 pushes the electrode collet chuck taper portion 532 forward The electrode collet tapered portion 554 is pressed and the electrode collet chuck 530 is moved forward by a predetermined distance together with the tungsten electrode 510 accommodated therein.

The electrode collet chuck 530 moved forward with the tungsten electrode 510 at a predetermined distance moves the electrode collet chuck taper 532 of the electrode collet chuck taper part 532 when the pressing operation of the electrode adjusting bar button 574 is canceled. The electrode collet chuck tapered portion 532 is extended to the tungsten electrode 510 and the pressing force is not transmitted to the tungsten electrode 510 so that the tungsten electrode 510 is moved to the front side, By providing a configuration in which only the collet chuck 530 can be moved backward, it is possible to provide a configuration in which the adjustment of the length of the tungsten electrode can be easily controlled during the welding work by the operator, thereby providing not only the convenience of the operator's work, Can be expected to be achieved.

FIG. 1 is a perspective view showing a state where a first electrode is mounted in a combined arc welding torch according to the present invention. FIG.
2 is a cross-sectional view taken along the line A-A 'in Fig.
FIG. 3 is a view showing the detailed structure of the first electrode shown in FIG. 1. FIG.
4 is a partial cutaway view showing a structure in which a first electrode is connected to a variable electrode unit which is a main component of the present invention.
5 is a perspective view showing a state in which the second electrode is mounted in the integrated arc welding torch according to the present invention.
6 is a sectional view taken along the line B-B 'in Fig. 5;
FIG. 7 and FIG. 8 are a partial cutaway view and a partial view illustrating a structure in which a second electrode is connected to a variable electrode unit, which is a main component of the present invention. FIG.
9 is a view showing a detailed structure of a second electrode which is a main component of the present invention.
FIGS. 10 to 12 are views for explaining a connection structure of a welded pipe using a pipe connecting pipe as a main component of the present invention. FIG.
Figs. 13 to 15 are views for explaining a welding position variable structure by a welding position adjusting unit which is a main constituent of the present invention. Fig.
16 is a view for explaining a thickness variable structure of a grip portion which is a main constituent of the present invention.
17 to 19 are views for explaining a piping connection structure of an end kit which is a main constituent of the present invention.
20 to 22 are diagrams for explaining an electrode connection structure of a wire feeder electrode of an end kit electrode connector of the present invention.

Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. It is to be understood, however, that the spirit of the invention is not limited to the embodiments shown and that those skilled in the art, upon reading and understanding the spirit of the invention, may easily suggest other embodiments within the scope of the same concept.

FIG. 1 is a perspective view showing a state where a first electrode is mounted on a combined arc welding torch according to the present invention. FIG. 2 is a sectional view taken along the line A-A ' FIG. 4 is a partial cut-away view illustrating a structure in which a first electrode is connected to a variable electrode unit, which is a main component of the present invention.

5 is a perspective view showing a state in which the second electrode is mounted in the integrated arc welding torch according to the present invention. FIG. 6 is a sectional view taken along line B-B 'of FIG. 5, 8 is a partial cutaway view and a partial plan view showing a structure in which a second electrode is connected to a variable electrode unit which is a main component of the present invention.

Referring to these drawings, the integrated arc welding torch 1 according to the present invention generates an arc between an electrode and a base material to perform a welding operation, and includes at least a welding line 10 including a power line for power supply A main body 400 which is accommodated in the main body 400 and provides a holding space for a user and an electrode according to a welding method connected to one side of the main body 400 and is connected to the main body 400 And a variable electrode unit 100 in which a user can selectively replace the electrode.

Specifically, the variable electrode unit 100 includes an electrode unit case 110 forming an outer appearance, a branching tube 110 disposed inside the electrode unit case 110 and capable of connecting electrodes at different positions Not provided).

In the electrode unit case 110, a plurality of electrode holes (not shown) are formed at different positions so that the electrodes classified according to the welding method can be mounted in different shapes in at least two directions.

The branch pipe includes a first pipe (120) to which a first electrode (300) supplied with power through the welding line (10) is connected at a position corresponding to a part of the electrode holes, and a second pipe And a second pipe (140) formed in a direction intersecting with the first pipe (120) and connected to a second electrode (500) supplied with power through the weld pipe (10).

1, one electrode hole is formed on the front side of the electrode unit case 110 so that the first electrode 300 can be connected to the electrode unit case 110, One end of the first conduit 120 is positioned inside the case 110.

Two electrode holes are formed concentrically on the top and bottom of the electrode case 110 so that the second electrode 500 can be connected to the two electrode holes, Both ends of the two-channel channel 140 are positioned.

That is, the branch pipe is a cross-type pipe communicating in four directions and is formed of a conductive material and connected to the welded pipe 10. In addition, the first channel 120 is formed so that the front side is partially downward inclined in consideration of the welding position of the base material and the electrode.

The second channel 140 is formed to intersect the inclined first channel 120 and is electrically connected to the variable electrode unit 100 or the main body 400 by the welding position control unit 200, So that the mounted second electrode 500 can be positioned so as to have a downward inclination forward.

The electrode unit case 110 may further include shielding means for selectively shielding the first channel 120 or the second channel 140 when the first electrode 300 or the second electrode 500 is connected. Respectively.

The shielding means is for shielding the electrode holes formed in the electrode case 110. When the arc welding is performed by the second electrode 500, the electrode holes, to which the first electrode 300 is coupled, Is shielded by the first cap 112, which is one component of the shielding means.

The first cap 112 is formed of an elastic rubber material so that the first cap 112 can be tightly fastened to the first channel 120 through which the first electrode 300 is fastened. A structure may be added to the electrode unit case 110 in a spiral manner.

When arc welding is performed by the first electrode 300, the electrode holes to which the second electrode 500 is coupled are connected to the second cap 114 and the third cap 116, Lt; / RTI >

The second cap 114 and the third cap 116 are formed in the same shape as the first cap 112 and are fastened to the upper channel and the lower channel of the second channel 140 in an interference fit manner, And can be rotationally fastened to the electrode unit case 110 in a spiral manner while being fitted.

In this embodiment, a CO ₂ electrode is connected to the first electrode 300 connected to the first channel 120, and a tungsten electrode is connected to the second channel 140 through the second electrode 500 .

The CO ₂ electrode is supplied with a consumable wire at a constant speed from a wire feeding device at a CO ₂ tip 340 where a welding wire outlet 342 is formed, and an arc is generated between the wire and the workpiece by a power source, . During the welding operation using the CO ₂ electrode, CO ₂ gas is supplied through the welding line 10 to prevent arc or molten metal from being adversely affected by oxygen or nitrogen in the air.

To this end, in this embodiment, a CO ₂ tip 340 for generating an arc from a power supplied through the first conduit 120 and a wire supplied through a wire feeder in the configuration of the CO ₂ electrode, ₂ tip 340 and includes a CO ₂ nozzle 320 for injecting CO ₂ gas toward the weld parent material.

A CO ₂ gas diffuser 380 for diffusing a gas supplied to the CO ₂ nozzle 320 is provided at a rear side of the CO ₂ nozzle 320. The CO ₂ gas diffuser 380 and the CO ₂ tip 340 has a gas guide section research for preventing the reduction of the vortex of the gas and, welding power is supplied to the CO ₂ nozzle 320 from the inside to guide the gas to spread the CO ₂ nozzle 320 between ( 360 are further provided.

In detail, between said gas guide section R 360 is the CO ₂ gas diffuser 380, CO ₂ gas discharged the CO so as to surround the hole 382, _second gas diffuser 380, and the CO _2, a nozzle 320 formed in the Connect.

To this end, a spiral-shaped nozzle coupling portion 366 is formed in the gas guide chamber 360 to rotate the rear end of the nozzle 320 to the front side of the nozzle body 361, and the CO ₂ gas A housing portion in which a portion of the CO ₂ gas discharge hole 382 of the diffuser 380 can be accommodated is formed.

Therefore, in the interior of the section research body 361, wherein the CO ₂ is laterally discharged to the gas diffuser 380, the CO ₂ nozzles 320, a plurality of guide holes 362 formed in the hideon CO ₂ gas into contact with an inside on the front side The occurrence of vortex can be reduced.

A cooling unit 160 for cooling the variable electrode unit 100 is further provided at the rear end of the first channel 120.

In detail, the cooling unit 160 is connected to a water line 30, which is formed of the same material as the first conduit 120 and is accommodated in the main body 400, to receive and store cooling water .

For this, the cooling unit 160 is formed in a circular or polygonal shape, and a hole is formed to have a diameter corresponding to the diameter of the first channel 120. The cooling unit 160 formed as described above is fitted in the brazing method after the holes are fitted to the first conduit 120.

Accordingly, the cooling water flowing into the cooling unit 160 cools the first conduit 120 while passing through the outer surface of the first conduit 120, and the cooling water flowing into the cooling unit 160 is discharged to the outside .

A first pipe connecting pipe (not shown) for connecting the first pipe 120 with the welded pipe 10 is connected to the rear end of the first pipe 120 together with a pipe connecting pipe 800 The first pipe connecting pipe 170 is further formed with a first pipe connecting part 172 (see FIG. 10) to be rotatable with the first pipe 170.

Meanwhile, as described above, the tungsten electrode may be mounted on the second channel 140 of the variable electrode unit 100 as the second electrode 500.

Fig. 9 is a view showing a detailed structure of the second electrode which is the essential part of the present invention.

Referring to the drawings, in the embodiment of the present invention, the tungsten electrode, which is the second electrode 500, is an electrode used in TIG (Tunsten Inert Gas) welding and is made of tungsten having a high melting point in the form of a rod.

In the case of the tungsten electrode, unlike the first electrode 300 which performs the welding operation while consuming the wire, continuous supply of the wire is not required by using the non-consumable electrode, but when the welding operation is repeated several times, the tungsten electrode is consumed, The protruding length of the protrusion can be shortened.

Therefore, in this embodiment, the second electrode 500 includes a ceramic nozzle 520, an electrode collet chuck 530 for adjusting the length of the tungsten electrode 510 and the tungsten electrode 510, An electrode collet 550, an electrode adjusting bar 570, and an electrode adjusting bar housing 590.

In detail, the ceramic nozzle 520 is fastened to the section 560 in a configuration for discharging the inert gas toward the base material.

The above study 560 prevents the vortex of the inert gas discharged through the guide hole 562 formed on the front side in the same shape as the gas guide section 360 of the first electrode 300 described above, And prevents the welding power from being transmitted to the ceramic nozzle 520.

The tungsten electrode 510 is positioned to pass through the second channel 140 corresponding to the upper and lower electrode holes of the electrode unit case 110. The electrode collet chuck 530, The electrode adjusting bar 570 and the electrode adjusting bar housing 590 and is moved forward when the electrode adjusting bar button 574 provided at the rear end of the electrode adjusting bar 570 is pressed.

In detail, the electrode collet chuck 530 is formed in a circular tube shape having a diameter capable of receiving the tungsten electrode 510 therein, and an electrode collet chuck taper portion 532 extending outward is formed on the front side. An electrode adjusting bar fixing part 534 is formed on the rear side so as to be fastened to the electrode adjusting bar 570. In this embodiment, the electrode adjusting bar fixing part 534 is formed in a spiral shape for rotation.

The electrode collet 550 is located outside the electrode collet chuck 530 formed as described above.

The electrode collet 550 pushes the electrode collet chuck 530 forward by a predetermined distance while an inert gas is supplied into the chamber 560.

The electrode collet 550 is formed with a portion having a gas discharge port 552 through which an inert gas is discharged into the chamber 560 and a portion with a diameter smaller than that of the gas discharge port 552 And an electrode collet tapered portion 554 for interfering with the first tapered portion 532 of the electrode collet.

That is, the electrode collet taper part 554 interferes with the electrode collet chuck taper part 532 on the inner side of the weld 560 so that the electrode collet chuck 530 presses the tungsten electrode 510 . When the electrode collet chuck 530 is pushed forward by a predetermined distance during the pressing operation of the electrode adjustment bar button 574, interference between the electrode collet taper part 554 and the electrode collet chuck taper part 532 is canceled. So that the tungsten electrode 510 can be drawn out to a predetermined length.

The electrode adjusting bar 570 for pushing the electrode collet chuck 530 forward is provided with an electrode adjusting bar housing (not shown) which is fastened from the upper side of the electrode case 110 to the upper end of the second channel 140 590 to guide the drawing path.

The electrode adjusting bar 570 is elastically compressed between the electrode adjusting bar housing 590 and the electrode adjusting bar button 574 when the electrode adjusting bar button 574 is depressed. When the pressing operation is canceled, An electrode adjusting bar spring 572 for returning the electrode 570 to the initial position is provided.

The electrode adjusting bar housing 590 has a spring engagement jaw (not shown) having a predetermined stepped portion. The lower end of the electrode adjusting bar button 574 has a larger diameter than the jaw jaw So that the electrode adjusting bar spring 572 can maintain a fixed position between the lower end of the electrode adjusting bar button 574 and the engaging jaw.

When the user presses the electrode adjustment bar button 574 on the second electrode 500 configured as described above, the electrode adjustment bar 570 is drawn into the electrode adjustment bar housing 590, (550) to the front side.

When the electrode collet 550 is pushed forward, the electrode collet tapered portion 554 formed on the front side of the electrode collet 550 pushes the electrode collet tucker portion 532 forward, The electrode collet chuck 530 moves forward by a predetermined distance together with the tungsten electrode 510 accommodated therein.

The electrode collet chuck 530 moved forward with the tungsten electrode 510 moves the electrode collet chuck 530 toward the front of the electrode collet chuck taper part 532 when the pressing operation of the electrode adjusting bar button 574 is canceled. The electrode collet chuck tapered portion 532 is extended to the tungsten electrode 510 and the pressing force is not transmitted to the tungsten electrode 510 so that the tungsten electrode 510 is moved to the front side, Only the collet chuck 530 moves backward.

When the electrode collet chuck 530 moves to the rear side, the electrode collet taper portion 554 also moves backward while interfering with the electrode collet chuck taper portion 532, 570 move backward due to the elastic restoring force of the electrode adjusting bar spring 574, and the rest of the structure except for the tungsten electrode 510 returns to the initial position.

The tungsten electrode 510 is pressed by the tapered portions 532 and 554 of the electrode collet chuck 530 and the electrode collet 550 during the pressing operation of the electrode adjusting bar button 574 The electrode collet 550, the electrode collet chuck 530, and the electrode adjusting bar 570 are retracted to form the initial position, while the pressing force applied to the tungsten electrode 510 is released.

The body housing 410 may further include a welding characteristic parameter adjusting unit 420, a display 440, and a plurality of control buttons 430 on a part of the upper surface of the body housing 410.

The display 440 may control the welding characteristic by adjusting the current and voltage supplied to the wire feeding device to be described below, So that the operator can easily check the welding operation state.

For example, a wire feeding state, a gas feeding state, a cooling method, and the like can be shown on the display 440 in a state where the first electrode 300 is mounted on the variable electrode unit 100 The operator can more easily confirm the state of the welding operation.

 The control button 430 may include buttons for turning on / off the display 440 or turning on / off the main power through the wire feeder, and the welding characteristic parameter adjuster 420 and the display 440 And the control button 430 may be connected to the wire feeder through separate communication means.

In contrast, the integrated arc welding torch 1 according to the present invention is different from the conventional method in which a welding pipe 10 is connected by compression to cause a problem in a welding pipe 10, Without welding operation.

In detail, the pipe connection port 800, which is a main constituent of the present invention, is connected to the welded pipe 10 when the variable electrode unit 100 is connected to the welded pipe 10 or when the welded pipe 10 is connected to the end- Is pressed and tightened.

10 to 12 are views for explaining a connection structure of a welded pipe using a pipe connecting port constituting a substantial part of the present invention.

Referring to these drawings, in the present embodiment, the pipe connection port 800 is provided to connect the connection pipe 170 (see FIG. 7) to the welding pipe 10 of the variable electrode unit 100 and the welding pipe 10, The pipe connecting port 800 presses the welded pipe 10 so that the end of the welded pipe connecting pipe 170 abuts on the welded line 12 inside the pipe 10 to maintain the state of continuity.

In detail, the pipe connection port 800 includes a second collet chuck 840 for receiving the welding pipeline 10 therein, and a second collet chuck 840 for receiving at least a portion of the second collet chuck 840 therein, A first collet chuck 820 for pressing the second collet chuck 840 and a collet chuck body 840 for receiving the first collet chuck 820 and applying pressure to the first collet chuck 820, (860).

The second collet chuck 840 uniformly pressurizes the weld line 10 when external pressure is applied in a state where the weld line 10 is accommodated therein.

For this, the second collet chuck 840 is formed in a cylindrical shape and includes a second collet chuck body 841 in which a plurality of slits 843 (hereinafter referred to as 'second slits') are uniformly formed in the longitudinal direction, And a plurality of protrusions 846 protruding outwardly in a one-to-one correspondence with the portions partitioned by the two slits 843.

The first collet chuck 820 is formed in a cylindrical shape having a larger diameter so as to accommodate the second collet chuck 840 therein and includes a plurality of slits 823 A first collet chuck tapered portion 824 protruding outward at an end portion of the portion defined by the first slit 823, and a second collet chuck tapered portion 824 protruding outward at an end portion thereof, And a plurality of protrusion receiving holes 826 corresponding to the portions defined by the first slits 823 and formed in a shape and size corresponding to the protrusions 846.

The first collet chuck 820 has a collet chuck main body coupling portion 822 to be coupled with the first collet chuck main body 821. The first pipe connecting pipe 170 is connected to the front inner diameter of the collet chuck body coupling portion 822, The first collet chuck coupling part 174 formed on the first collet chuck coupling part 174 is rotatably coupled.

When the first collet chuck 820 is coupled with the second collet chuck 840, the plurality of protrusions 846 are coupled to the projection receiving holes 826 in a one-to-one correspondence with each other, and the first collet chuck 820 The first collet chuck body 821 is fastened to the outside of the first collet chuck body 830 and the second collet chuck 840.

The first collet chuck body 821 is formed into a cylindrical shape having an inner diameter larger than the outer diameter of the first collet chuck 820 so as to be rotatably coupled while receiving the first collet chuck 820 therein And a spiral is formed on the inner diameter portion so that the collet chuck body engagement portion 822 can be rotated.

Hereinafter, a process of connecting the welded pipe 10 by the pipe line connector 800 having the above-described structure will be described.

First, the weld line (12) is exposed to the inside of the weld line (10) when the shell is removed. The exposed weld line 12 is drawn into the combined body of the first and second collet chucks 820 and 840 and contacts the end of the first pipe connecting pipe 170. The diameter of the first pipe connecting pipe 170 may be larger than the inner diameter of the weld line 12 or may be smaller than the inner diameter of the weld line 12 to prevent the first pipe connecting pipe 170 and the weld line 12 At least a portion of which can be fitted and contacted with each other.

 When the first channel connecting pipe 170 and the weld line 12 are in contact with each other as described above, the first collet chuck body 821 is coupled to the first collet chuck body 820 while being rotated, The first collet chuck main body 821 is moved toward the welding pipeline 10.

That is, the first collet chuck body 821 is coupled while rotating in the direction of the weld line 10 from the front side of the first collet chuck 820, and protrudes outwardly of the projection receiving hole 826 when the rotation continues While the second collet chuck 840 presses at least the weld line 12 while the protrusion 846 is pressed by the first collet chuck body 821, ).

When the first collet chuck main body 821 is continuously rotated in the same direction in the state where the coupling relation is formed as described above, the first collet chuck body 821 further moves toward the welding pipeline 10, The first collet chuck body 821 presses the first collet chuck taper portion 824 so that additional engaging force can be exerted to maintain a more rigid engagement relationship.

In the integrated arc welding torch 1 according to the present invention having the above-described connection structure of the welding line 10, the position of the variable electrode unit 100 in the main body 400 is adjusted by the welding position adjusting unit 200 And is rotatable while being adjusted in the longitudinal direction.

13 to 15 are views for explaining the welding position variable structure by the welding position adjusting unit which is a main constituent of the present invention.

Referring to these drawings, the integrated arc welding torch 1 according to the present invention is provided with a welding position adjusting unit 200 for adjusting the welding position between the variable electrode unit 100 and the main body 400 .

The welding position adjuster 200 includes a welding line 10 and an air supply line 20 and a water supply line 30 connected to the variable electrode unit 100 through the inside of the main body 400. [ The variable electrode unit 100 can be moved in the front-rear direction or rotatable in the axial direction on the basis of the main body 400.

The welding position adjusting unit 200 includes a first pipe 220 and a second pipe 240 and a pipe holder 480 and a pipe pressure clamp 210 for pressing and fixing the pipe.

One end of the first pipe 220 is fastened and fixed to the electrode case 110 and the other end of the first pipe 220 is fastened within the second pipe 240.

Accordingly, the first pipe 220 can be inserted into and drawn out from the second pipe 240 to the fixing position.

The second pipe 240 is fixed to the inside of the body housing 410. Although not shown, a step or stopper is provided on the inner diameter of the front end of the second pipe 240 to interfere with the rear end of the first pipe 220.

The pipe holder part 480 may be integrally formed with the body housing 410. The pipe holder part 480 may be formed in a semicircle shape surrounding the outer surface of the first pipe 220 to form a predetermined gap 482 And surrounds the first pipe 220.

The pipe clamping fixture 210 is rotatably coupled to the pipe holder 480 and presses the pipe holder 480 according to the degree of rotation. Accordingly, the first pipe 220 can be selectively drawn out and rotated from the inside of the second pipe 240 according to the degree of the pressure of the pipe holder 480 of the pipe pressure clamp 210.

Hereinafter, a case where the position of the variable electrode unit 100 is varied by the welding position adjusting unit 200 having the above-described configuration will be described.

If a welding operation requiring a longer distance is required during the arc welding, the operator rotates the pipe pressing fastener 210 in the unbonding direction to loosen the pressing force of the pipe holder part 480.

When the pressing force of the pipe holder part 480 is loosened through the above process, the operator pulls the variable electrode part 100 or the first pipe 220 from the main body 400 and pulls the variable electrode part 100 or the first pipe 220 from the main body 400, It can be withdrawn.

The worker pushes the pipe holder 480 by rotating the pipe clamping fixture 210 in the clamping direction again so that the first pipe 220 is pulled out while the first pipe 220 is pulled out, The position can be fixed.

In the case where the electrode is to be laterally oriented in the course of performing the arc welding, the operator rotates the pipe pressing fixture 210 in the unlocking direction as in the case of the length adjustment described above, Loosen the pressing force.

In the state in which the pressing force is loosened as described above, the operator rotates the variable electrode unit 100 or the first pipe 220 in the axial direction to position the pipe as shown in FIG. 15, So that the welding position can be fixed with the electrode facing sideways by pressing the pipe holder part 480.

Meanwhile, the grip portion 460 provided on the main body 400 and held by the user can be selectively adjusted in thickness.

Fig. 16 is a view for explaining the thickness variable structure of the grip portion which is a main constituent of the present invention.

The grip portion 460 includes a handle 461 formed to surround the upper and both sides of the body housing 410 and a handle 461 extending from the side of the body housing 410, A handle fastener 464 for fastening the handle 461 to the body housing 410 and a handle guide hole 462 formed in the handle 461 in a vertically long direction.

In detail, the handle 461 may be formed of an insulating material as a portion that is directly in contact with the user for the operation, and a plurality of non-slip projections may be formed at the contact portion. The body housing 410 is further provided with a seating part 430 for seating the handle 461. Although not shown, the seating part 430 is provided with a handle 461 for vertically moving the handle 461, And a guide groove or a rib corresponding to the guide rib or the guide groove may be formed on the inner surface of the handle 461.

The handle guide hole 462 is formed long in the vertical direction at the side of the handle 460. Correspondingly, the body housing 410 is formed with a fastening hole through which the handle fastener 464 can be rotated at a position corresponding to at least the lower end and the upper end of the handle guide hole 462.

The handle fastener 464 is inserted into the handle guide hole 462 formed as described above and is pivotally coupled to the fastening hole formed in the body housing 410 and fastened to the upper or lower end of the handle guide hole 462 The thickness of the grip portion 460 can be varied.

That is, when it is desired to extend the thickness of the grip portion 460, the gripper 464 fixing the grip 461 is rotated until the gripping force is released, and then the grip 461 is moved to the body housing 410 So that the handle fastener 464 corresponds to the lower end of the handle guide hole 462. [

When the handle 464 is rotated in the fastening direction in the above state, the handle 461 may be spaced a predetermined distance from the body housing 410 to extend the thickness of the handle 460.

When the thickness of the grip portion 460 is reduced in the above-described state, the engagement force of the gripper 464 is released, the grip 461 is lowered toward the body housing 410, The grip portion 460 can be fixed in a reduced thickness state when the grip portion 460 is fixed in a state of being positioned at the upper end of the handle guide hole 462. [

The integrated arc welding torch 1 according to the present invention includes a main body 400 for easily connecting the welding pipe 10, the air supply pipe 20 and the water supply pipe 30, The end kit is further provided.

17 to 19 are views for explaining the piping connection structure of the end kit, which is the essential part of the present invention.

Referring to these figures, the end kit provided at the rear end of the main body 400 includes an end kit housing 620 providing a space for accommodating the welding duct 10 accommodated in at least the main body 400, A plurality of fastening portions formed in the end kit housing 620 to connect external air lines, water lines, and gas lines; and a supply fluid connected to the variable electrode portions 100 through the plurality of fastening portions. And a plurality of ports to which a conduit for guiding is connected.

In detail, the end-kit housing 620 is formed into a shape that is mutually formed on both right and left sides of the welded pipe 10 and is fastened by a housing fixing bolt 622. Inside the end-kit housing 620, And a duct connecting part 800 for connecting the part 682 is accommodated.

The channel connection port 800 is connected to the collet chuck body using two collet chucks and a collet chuck main body, and thus is not described in detail since it is the same as the above-described variable electrode unit 100.

A water line fastening part 632 for receiving cooling water from the outside is formed at a rear part of the end kit housing 620 and an air line fastening part 632 for receiving air from the outside is formed at another part of the rear side .

A welding gas supply part 660 for supplying welding gas to the inside of the end feeding part 620 is formed on a rear upper surface of the end kit housing 620. The welding gas supplying part 660 The air line coupling part 632 and the water line coupling part 632 are respectively provided with a rotation cap 664 so that they can be shielded when there is no line connection.

At least two welding gas supply units 660 may be connected to gas lines of different kinds when gas mixing is required. When only a single gas is used, the welding gas supply unit 660 is not used. And is shielded by the rotation cap 664.

The cooling water supplied by the water line coupling part 632 passes through the interior of the end kit housing 620 and is connected to the water supply and recovery port 640. The water supply and recovery port 640 The water supply line 30 is connected.

The water supply pipe line 30 connected to the water supply and recovery port 640 supplies the cooling water to the cooling unit 160 and recovers the supplied cooling water so that the cooling water can be circulated.

The air supplied by the air line coupling part 632 passes through the inside of the end kit housing 620 and is connected to the air supply port 630. The air supply port 630 is connected to the air supply pipe 630, (20) are connected.

The air supply pipe 20 connected to the air supply port 630 is connected to the inside of the electrode unit case 110 to supply air and the supplied air acts together with the cooling unit 160 to perform air cooling and water cooling All of which can be accomplished. In addition, the air supplied through the supply path may be discharged through the air discharge port 111 to remove welding fumes generated during the welding operation.

The end kit housing 620 may be further provided with an air conduit protector 690 for protecting the air conduit 20, the water supply conduit 30 and the weld conduit 10 from the front side of the end kit housing 620.

Meanwhile, the electrode unit 682 for the wire feeder connected to the weld line 10 by the conduit connector 800 further includes a spring liner 684 connected to the wire feeder to reduce vibration or friction. do.

delete

Further, wire feeding and feeding device fastening means for connecting the end kit and the wire feeding device are further provided on the outside of the electrode feeding part 682 for the wire feeding device.

20 to 22 are views for explaining an electrode connection structure of a wire feeder electrode of an end kit electrode connector, which is a main component of the present invention.

Referring to these drawings, a wire feeding device fastening means for connecting the wire feeding device electrode portion 682 with the power supply line of the wire feeding device is further provided at the rear end of the end kit of the integrated arc welding torch 1 according to the present invention .

The wire feeding device fastening means includes a wire feeding device fastening unit 680 for connecting the end kit and the wire feeding device, an electrode connecting collet chuck 696 for electrically connecting the wire feeding device and the end kit, And includes a collet chuck body 692 and a screw tightening hole 694 for generating a coupling force when being rotated.

In detail, the wire feeder fastening unit 680 is rotatably connected to the wire feeder unit while the electrode feeder electrode unit 682 is received therein, and at the other end, the electrode connecting collet chuck body 692 And a fastening portion formed with a spiral so as to be rotatable can be provided.

The electrode connector collet chuck 696 presses and fixes the wire feeder electrode unit 682 received by the external pressure when one end of the wire feeder electrode unit 682 is inserted. To this end, a collet chuck tapered portion 696 'is formed at the end of the electrode connector collet chuck 696 at which the electrode feeder electrode portion 682 is inserted and separated by a slit and expanded outward.

A wire feeder electrode 70 is drawn into the other end of the electrode connector collet chuck 696 to receive at least a portion of the electrode feeder electrode 682 therein and the electrode connector collet chuck body 692 So that the collet chuck taper portion 696 'is pressed to form an electrical connection state.

The collet chuck body tapered portion 692 'is formed in the electrode collet chuck body 692 and the screw collet 694 is provided on the outer surface of the collet chuck body 692.

The screw tightening tool 694 is formed in a ring shape that can shield both the electrode connector collet chuck body 692 and the wire feeding and coupling fastener 680. One end of the screw tightening tool 694 is provided with a latching protrusion 694 'for interfering with a stepped portion 693 formed on an outer surface of the electrode collet chuck body 692 of the electrode connector, And a helical line corresponding to the helix formed on the outer surface of the base 680 is formed and is rotationally fastened.

Hereinafter, a process of connecting the wire feeding device fastening means and the wire feeding device having the above-described structure will be described.

At the rear end of the end kit, the wire feeding and feeding device fastening part 680 is coupled to the electrode feeding part 682 while receiving the electrode feeding part 682 therein.

In this state, one end of the electrode portion 682 for wire feeding device is exposed outside the wire feeding device fastener 680, and the exposed end is connected to the electrode connecting port collet chuck 696, The chuck body 692 and the screw tightening tool 694 are combined.

At this time, a welding wire inlet 64 formed in the power supply unit 60 of the wire feeder corresponds to the other end of the electrode connector collet chuck 696, and the wire feeder electrode 70 is connected to the inside of the collet chuck 696 . As described above, wires can be continuously supplied from the wire feeder to the interior of the electrode connector collet chuck 696 in which the wire feeder electrode 70 is inserted.

The wire feeder electrode unit 682 is inserted into the electrode connector collet chuck 696 accommodating the wire feeder electrode 70 so that the electrode feeder electrode 702 contacts the wire feeder electrode 70, And the sphere 694 is rotated in the fastening direction.

The stepped portion 693 formed in the electrode collet chuck main body 692 of the electrode connecting port is engaged with the engaging protrusion 694 'formed at the end of the screw tightening hole 694, The collet chuck main body 692 is moved along the direction of the engagement so that the collet chuck body taper portion 692 'presses the collet chuck taper portion 696' .

At this time, the degree of interference between the collet chuck body tapered portion 692 'and the collet chuck tapered portion 696' is largest at the portion where the screw tightening portion 694 is completed due to the shape of each table portion, So that the wire feeder electrode 70 and the electrode feeder electrode 682 can be stably connected.

100 Variable electrode unit 200 Welding position adjustment unit
300 First electrode 400 Main body
500 ........ Second electrode

Claims (8)

delete delete delete In a TIG welder capable of adjusting the length of a tungsten electrode,
And a main body accommodating therein a welding line including at least a power line for power supply and providing a user's gripping space,
An electrode collet chuck having a size and shape corresponding to an outer diameter of a round-bar type tungsten electrode having a predetermined diameter, the electrode collet chuck having the tungsten electrode therein;
An electrode collet which is located outside the electrode collet chuck 530 and pushes the electrode collet chuck 530 in one direction by a predetermined distance while supplying an inert gas into the inside of the electrode 560;
An electrode adjusting bar provided at a rear end of the electrode collet chuck for pushing the tungsten electrode in one direction by a user's pressing operation;
An electrode adjusting bar housing provided outside the electrode adjusting bar and providing a predetermined internal space necessary for the operation of the electrode adjusting bar;
And a ceramic nozzle provided at an end of the side where the tungsten electrode is discharged and forming a discharge port for welding gas and a tungsten electrode,
The electrode collet chuck comprises:
The electrode collet chuck taper portion 532 is formed on the front side and the electrode adjusting bar 570 and the electrode collet chuck taper portion 532 are formed on the rear side. An electrode adjusting bar fixing portion 534 is formed so as to be fastened,
The electrode collet (550)
A portion formed with a gas discharge port 552 through which an inert gas is discharged into the chamber 560 provided at one side of the electrode collet and a tubular portion having a diameter smaller than that of the portion formed with the gas discharge port 552 And an electrode collet tapered portion 554 for interfering with the electrode collet chuck taper portion 532 in the inside of the electrode collet chuck 530 while being supplied with an inert gas into the electrode 560, Is pushed forward by a predetermined distance,
Wherein the electrode adjusting bar comprises:
In order to push the electrode collet chuck 530 forward, the lead-out path is guided by the electrode adjusting bar housing 590 and is received in the electrode adjusting bar housing 590 and the electrode adjusting bar housing 590 The electrode adjustment bar button 574 provided at the rear end of the electrode adjustment bar 570 is elastically compressed during the pressing operation of the electrode adjustment bar button 574. When the pressing operation is canceled, And an electrode adjusting bar spring (572) for returning the welding wire to an initial position of the TIG welding electrode.
5. The method of claim 4,
The upper end of the electrode adjusting bar housing 590 is provided with a spring engaging jaw having a predetermined stepped portion. The lower end of the electrode adjusting bar button 574 is formed to have a larger diameter than the engaging jaw, (572) can maintain a fixed position between the lower end of the electrode control bar button (574) and the engagement jaw. ≪ Desc / Clms Page number 24 >
6. The method of claim 5,
When the user presses the electrode adjusting bar button 574, the electrode adjusting bar 570 is drawn into the electrode adjusting bar housing 590 and pushes the electrode collet 550 forward, The electrode collet chuck 530 moved forward by the electrode adjusting bar spring 572 moves backward by the electrode adjusting bar spring 572 when the pressing operation of the electrode adjusting bar button 574 is canceled. At this time, the tungsten electrode 510 ) Is pressed by the electrode collet chuck taper (532) and the tungsten electrode (510) is fixed.
6. The method of claim 5,
Only when the operator presses the electrode adjustment bar button 574 in a state in which the tungsten electrode 510 is constrained by the tapered portions 532 and 554 of the electrode collet chuck 530 and the electrode collet 550, Wherein the electrode collet chuck (530) is withdrawn to the front side and the interference is canceled to release the binding force applied to the tungsten electrode (510).
6. The method of claim 5,
The electrode collet chuck 530, which is returned to the initial position when the electrode adjusting bar button 574 is released from the pressing operation, can be drawn out from the tungsten electrode 510 by the self- Wherein the tungsten electrode has a length adjustable tungsten electrode.

Images