KR101070512B1 - Torch unit for flux cored arc welding using self-protected flux cored wire - Google Patents

Abstract

The present invention discloses a torch device for performing arc welding using a self-protected flux cored wire without supplying a protective gas, wherein the torch device according to the present invention has a socket insert for supplying power and a self-protected flux cored wire. An adapter to which a wire supply port for supplying a wire is connected to an inner side of the socket insertion hole and to which a locking device for locking by fastening to an inlet of the socket insertion hole is fastened; A torch having a detachable tip configured at one end and having a cap made of an insulating material at the end where the tip is detached to cover a portion of the tip; A conductive connector inserted into the socket insertion hole and fixed by side tightening by the locking of the locking device, the conductive connector having a socket supplied with the power and the self-protecting flux cored wire, wherein the conductive connector is exposed to the socket; A connection part accommodated in the case and fixed; And a cable inserted at both ends into the connection portion and the torch to form an electrical connection and a coupling for transferring the self-protecting flux cored wire.

Description

Torch apparatus for a flux cored Arc welding using a self shielded FCW}

The present invention relates to a torch device for flux cored arc welding, and more particularly, using a self-shielded flux cored wire (hereinafter, referred to as a 'self-protection FCW') without supplying a protective gas. A torch apparatus for performing flux cored arc welding for performing arc welding.

Arc welding uses the arc heat generated between the electrode and the electrode or the base material to melt the molten material or the base material to form the bonding of the base material. The arc used for welding has relatively low voltage and high current characteristics, and the static and dynamic characteristics of the arc vary depending on the welding method.

Arc welding can be classified into more various types, but generally, arc coating method, Tungsten (Tunsten Inert Gas Welding, TIG) welding method, Metal Inert Gas Welding (MIG), Metal Active Gas Welding (MAG), and carbon dioxide ( CO ₂ ) welding, submerged welding and plasma welding can be divided into various kinds.

Apart from these, there is Flux Cored Arc Welding (hereinafter referred to as 'FCAW') using self-protecting FCW. The FCAW welding method is to supply the self-protecting FCW at a constant speed to generate an arc between the wire and the base material through the electric current and to form the molten paper and the welding bead by the generated arc heat. The FCAW welding method using the self-protecting FCW can protect the weld by gas and slag generated in the flux of the FCW without supplying a protective gas from the outside.

The present applicant has applied for a multifunctional adapter and a torch fastening device installed in the welder main body so that they can be applied to various welding methods as Korean Patent Application No. 10-2010-0083317, and the above-mentioned Korean Patent Application No. 10-2010-0083317 Disclosed is a technique for selectively conducting electricity, welding electrode wires, and supplying gas using a multifunctional adapter that forms a single port.

Accordingly, there is a need for an improved torch device that can be more easily combined with the above-described multifunctional adapter disclosed by the present applicant and can extend the life of the tip.

An object of the present invention for solving the above problems is to provide a torch device for flux cored arc welding in combination with a multifunction adapter to perform arc welding using a self-protected FCW without supply of a protective gas.

In addition, the present invention provides a torch device for flux cored arc welding, which can protect the tip from external contact with the specter by improving the structure of the tip portion of the torch that performs arc welding using a self-protecting FCW without supplying a protective gas. Providing for other purposes.

In the torch device for flux cored arc welding using the self-protected flux cored wire according to the present invention, a socket insertion hole for supplying electric power is formed, and a wire supply hole for supplying the self-protecting flux cored wire is provided inside the socket insertion hole. An adapter to which the locking device which is formed to be connected and locks by tightening to an inlet of the socket insertion hole is fastened; A torch having a detachable tip configured at one end and having a cap made of an insulating material at the end where the tip is detached to cover a portion of the tip; A conductive connector inserted into the socket insertion hole and fixed by side tightening by the locking of the locking device, the conductive connector having a socket supplied with the power and the self-protecting flux cored wire, wherein the conductive connector is exposed to the socket; A connection part accommodated in the case and fixed; And a cable inserted at both ends into the connection portion and the torch to form an electrical connection and a coupling for transferring the self-protecting flux cored wire.

Here, the torch includes a tip holder to which the tip is attached and detached, a connecting bolt to fasten the tip holder, and a torch body fastened to the connecting bolt, wherein the cap includes at least one of an outer circumferential surface of the tip holder and the connecting bolt. Can be screwed with one.

The torch includes a tip holder to which the tip is attached and detached, a connecting bolt to fasten the tip holder, and a torch body fastened to the connecting bolt, wherein the cap is at least one of an outer circumferential surface of the tip holder and the connecting bolt. And can be combined by compression.

The connecting portion extends out of the case and is inserted into the socket inserting portion while being extended to the fixing portion and the fixing portion formed with a fixing groove forming a coupling with the case, and extending into the fixing portion of the case. A connection portion extending inward to form a connection for electrical connection with the cable and for the transfer of the self-protected flux cored wire and having a longitudinal through hole through which the self-protected flux cored wire penetrates. A conductive connector transferring the power by itself; A case in which a fixing jaw coupled to the fixing groove of the fixing portion is formed inward and accommodating the fixing portion of the conductive connector and the end of the cable coupled to the connecting portion and the connecting portion; And at least one crimping ring disposed on an outer surface to which the connection part and the cable are coupled to support a coupling state between the wires drawn from the cable and the connection part by crimping by external hydraulic pressure.

Here, the connection portion of the conductive connector may be formed in the longitudinal or annular groove for the arrangement of the wires.

The adapter may include a main body having a male screw formed at an inlet of the socket insertion hole formed by connecting the wire supply hole and the socket insertion hole to protrude outwardly; And a female thread coupled to the male screw of the main body, and a tightening ring having a gap spaced in the longitudinal direction is disposed inside the female screw and rotated for screwing with the main body to the tightening ring to the socket insertion hole of the main body. It may include a; locking device for tightening and fixing the side of the socket is pushed inward.

On the other hand, the torch device for flux cored arc welding using the self-protected flux cored wire according to the present invention, the torch is coupled to cover the portion of the tip of the insulating material at the end of the tip detachable; A cable, one end of which is inserted into the torch to form a coupling for electrical connection and self-protected flux cored wire transfer; A fixing groove having a fixing groove formed on an outer side thereof, a cylindrical socket extending to one side of the fixing portion, and extending to the other side of the fixing portion to form a coupling for the electrical connection with the cable and the transfer of the self-protected flux cored wire. A conductive connector including a connection portion and having a longitudinal through hole formed therein through which the self-protecting flux cored wire penetrates, and which transmits the power by itself due to a conductive material property; And a case in which a fixing jaw coupled to the fixing groove of the fixing portion is formed inward and accommodating the fixing portion of the conductive connector, the connecting portion, and the end of the cable coupled to the connecting portion.

Here, at least one crimping ring disposed on an outer surface of the conductive connector and the cable coupled to the case to support a coupling state between the wires drawn out of the cable and the connection portion by crimping by external hydraulic pressure is provided. It may be further configured in the case.

The torch includes a tip holder to which the tip is attached and detached, a connecting bolt to fasten the tip holder, and a torch body fastened to the connecting bolt, wherein the cap is at least one of an outer circumferential surface of the tip holder and the connecting bolt. And screw can be combined.

The torch includes a tip holder to which the tip is attached and detached, a connecting bolt to fasten the tip holder, and a torch body fastened to the connecting bolt, wherein the cap is at least one of an outer circumferential surface of the tip holder and the connecting bolt. And can be combined by compression.

A torch device for flux cored arc welding using a self-protected flux cored wire according to the present invention includes a torch having a tip holder detachable from a tip, a connecting bolt fastening the tip holder, and a torch body fastened to the connecting bolt; And a cap coupled to cover a portion of the tip at an end at which the tip of the torch is detachable, wherein the cap is screwed with at least one of an outer circumferential surface of the tip holder and the connecting bolt. .

According to the present invention has an effect that can be easily combined with the multifunction adapter to perform arc welding using the self-protected FCW without gas supply.

Further, according to the present invention, the cap can protect the tip from external contact with the specter when performing arc welding, thereby improving the life and welding efficiency of the welding apparatus.

1 is a perspective view showing a preferred embodiment of a torch device for flux cored arc welding using a self-protected flux cored wire according to the present invention.
FIG. 2 is a use state diagram illustrating how the embodiment of FIG. 1 is coupled to a body. FIG.
3 is a cross-sectional view of an adapter configured in an embodiment according to the present invention.
4 is a perspective view of a part of the cover of the connecting portion of the embodiment according to the present invention that is open;
FIG. 5 is a perspective view showing only one side of a cover formed in the connecting portion of FIG. 4. FIG.
FIG. 6 is a perspective view of the conductive assembly configured in the connecting portion of FIG. 4. FIG.
FIG. 7 is a front view of the conductive assembly of FIG. 6. FIG.
8 is a plan view of the conductive assembly of FIG.
9 is a left side view of the conductive assembly of FIG. 6.
10 is a right side view of the conductive assembly of FIG. 6.
11 is a use state diagram illustrating a coupling method according to the first embodiment of the cap according to the present invention.
12 is a cross-sectional view of the cap of FIG.
13 is a use state diagram illustrating a coupling method according to the second embodiment of the cap according to the present invention.
14 is a cross-sectional view of the cap of FIG.
15 is a cross-sectional view illustrating a coupling method according to another embodiment of a connector and an adapter according to the present invention.
16 is a cross-sectional view of the embodiment of FIG. 15 in a separated state;
FIG. 17 is a sectional view of the connecting portion of the embodiment of FIG. 15; FIG.
18 is a perspective view of a tightening ring applied to the embodiment of FIG. 15.

The present invention discloses a torch device for flux cored arc welding using self-protecting FCW, and flux cored arc welding (FCAW) can be carried out by an embodiment according to the present invention.

1 and 2, an embodiment according to the present invention includes an adapter 100, a torch 120, a connection unit 140 and a cable 160, and the adapter 100 is coupled to the main body 200. do.

Among these, the adapter 100 is installed to penetrate the side of the main body 200 and may be described later with reference to FIG. 3.

In addition, the self-protecting FCW 300 is provided from the adapter 100 to be supplied through and via the connecting portion 140, the cable 160, and the torch 120 and to be drawn out to the tip 122 at the end of the torch 120. Transferred. The self-protecting FCW 300 may be guided by the guide wire 302 for smooth transfer in the process of supplying through the connection part 140, the cable 160, and the torch 120 described above. In addition, the guide wire 302 is typically installed to ensure a path through which the self-protecting FCW 300 is transported via the connection 140, the cable 160, and the torch 120.

As shown in FIG. 2, the main body 200 may be manufactured to be movable, and the storage compartment 508 having the cover 520 coupled to the hinge 522 may be accommodated in the self-protecting FCW 300 and may be folded from the top to the bottom. It may have a structure provided.

In the storage chamber 508, a reel 502 wound around the self-protecting FCW 300 is a wire supply device to which the roller 504 is detached, and a feeding device 510 for transferring the self-protecting FCW 300 to the adapter 100. ) And a tension adjusting device (not shown) for adjusting the transfer tension of the self-protecting FCW 300, and a power supply unit (not shown) for supplying power to the adapter 100. In addition, a control port 512 may be configured to interface a trigger signal for controlling arc welding at a position adjacent to the adapter 100 of the outer wall of the main body 200. The control port 512 makes an electrical connection with a control circuit (not shown) inside the main body 200, and the control circuit performs an operation of controlling the power supply of the power supply unit.

The control socket 512 inserts a trigger socket 180 formed at an end of a wire drawn out to one side of the connection unit 140 to generate a trigger signal generated by a switch 126 operation of the handle 124 formed on the torch 120. do.

As described above, the main body 200 may be configured, and the adapter 100 installed in the main body 200 will be described with reference to FIG. 3.

The adapter 100 is provided with a socket insertion hole 29 for supplying power, and a wire insertion hole 26 for supplying the self-protecting FCW 300 is connected to the inside of the socket insertion hole 29. Include. Then, the locking device 40 for locking by fastening is fastened to the threaded portion 22 formed at the inlet of the socket insertion hole 29 of the conductive inserting portion 20.

The locking device 40 includes a ring-type coupling 44 made of metal formed with a female threaded portion inside the non-conductive handle, and a tightening ring 50 is disposed inside the coupling 44. The tightening ring 50 has a shape as shown in FIG. 18 to be described later, forms a ring shape having a gap 52 spaced in the longitudinal direction, has a taping surface 54, and is disposed such that one end thereof is inserted into the socket insertion hole 29. do.

In the above structure, when the locking device 40 is rotated to the left or the right, the locking device 40 moves forward or backward by screwing. When the locking device 40 is advanced, the tightening ring 50 is pushed into the socket insert 29 to tighten. That is, when the socket 142 described below is inserted into the socket insertion hole 29 through the locking device 40, the socket 142 is coupled to the adapter 100 by tightening the tightening ring 50.

In addition, the adapter 100 is fixed to penetrate the case 5 of the main body 200 by the cover fixtures 12 and 14 of the non-conductive material which are integrated with each other inside and outside the case 5.

Specifically, the conductive insert 20 of the adapter 100 is inserted into the cover fixture 12 positioned outside the case 5, and the cover fixture 12 is inserted into the case with the conductive insert 20 inserted therein. It is arranged in the through hole formed in (5). At this time, another cover fixture 14 is installed inside the case 5. A lock nut 18 for screwing with a screw 24-1 formed on the outer surface of the conductive insert 20 is coupled to the cover fixture 14 in addition. Here, a washer 16 may be disposed between the lock nut 18 and the cover fixture 14. When the cover fixture 14 is tightened using the lock nut 18, the cover fixture 12 and the cover fixture 14 are brought into close contact with each other to assemble the case 5 so that the adapter 100 is connected to the main body 200. The case 5 may be installed in a fixed state.

The socket 142 described later is inserted into the socket insertion hole 29 of the adapter 100 installed as described above, and the self-protecting FCW 300 is inserted and transported in the state in which the socket 142 is inserted. The through hole 158 of the center and the wire supply port 26 of the adapter 100 are disposed to face each other so that the self-protecting FCW 300 may be transferred from the adapter 100 into the connection unit 140 and supplied. .

In addition, the conductive insert 20 of the adapter 100 is made of a metal material having a conductive material, so that the electric power applied therein is inserted into the socket inserting port 29, and the socket of the connecting portion 140 coupled to the tightening ring 50. And pass to 142.

At this time, the conductive inserting portion 20 may fix the power nut 64 to the screw portion 24-2 formed on the outer surface extending into the case 5 in order to apply electric power, the power nut 64 is the power The applied wiring 62 is connected and the fixed state can be supported by the fixing nut 66 which is additionally assembled.

That is, the socket 142 of the connection portion 140 is inserted into the socket insertion hole 29 of the adapter 100 and fixed by the locking device 40 so that the connection portion 140 protects itself from the main body 200 FCW 300. And can be powered.

Meanwhile, referring to FIGS. 4 and 5, the connection part 140 includes a pair of covers 144 that are assembled with screws facing each other to form a case, and the socket 142 that receives power and self-protecting FCW 300 is provided. Formed conductive connector 146.

The cover 144 constituting the case made of a non-conductive material has a groove accommodating the conductive connector 146 and an end of the cable 160 connected thereto, and leads the wiring drawn out for connection with the trigger socket 180 in the assembled state. The through hole 147 and the fixing jaw 145 for coupling with the fixing groove 143 of the conductive connector 146 to be described later is formed. The cover 144 configured as described above has a structure that accommodates and supports the conductive connector 146 so that the socket 142 is drawn out, and also accommodates the coupling portion of the conductive connector 146 and the cable 160.

4 and 6 to 10, the conductive connector 146 has a shape in which the fixing part 150, the socket 142 and the connection part 152 extending on both sides thereof are integrally formed. It has a longitudinal through hole 158 through which the self-protection FCW 300 penetrates and is formed of a conductive metal material.

The fixing part 150 may be designed to have a diameter larger than that of the connecting part 152, which may be determined in consideration of the thickness of the wires drawn from the cable 160 and the pressing ring 154 for fixing the connecting part 152. Can be.

Of these, the fixing part 150 has a cylindrical shape in which the fixing groove 143 described above is formed, and the socket 142 connected thereto also has a cylindrical shape so as to be easily compressed by the fastening ring 50 described above.

In addition, the connection portion 152 may be formed along the periphery of the longitudinal grooves 156 for electrical connection with the wires drawn out of the cable 160 of the fixing portion 150, the grooves in an annular shape according to the manufacturer's intention It may be formed.

In addition, the cable 160 may be supported by the crimping ring 154 in a coupling state with the connection part 152. The crimping ring 154 is disposed on the outer surface to which the connector 152 and the cable 160 are coupled to support the connection state between the wires drawn out of the cable 160 and the connector 152 by crimping by external hydraulic pressure. Thus, two or more may be used in parallel.

The other end of the cable 160 connected to the connection unit 140 described above is coupled to the handle 124 of the torch 120. And, the torch 120 is fastened to the end of the connection bolt 130, the connection bolt 130 is fastened to the end of the torch body 128, the torch body 128 coupled to the handle 124, the tip ( 122 includes a tip holder 132 that is detachable, and an insulating cap 134 may be coupled to cover a portion of the tip 122 at an end at which the tip 122 is detached.

At this time, the cap 134 may be coupled to the threaded portion 136 is formed in the tip holder 132 as shown in Figure 11 and 12, the threaded portion 136 is formed on the connecting bolt 132 as shown in Figure 13 and 14 11 and 13, the cap 134 may have a configuration in which a female screw is formed at an inner side corresponding to a position where the threaded portion 136 is formed.

In addition, the cap 132 may be configured by various methods such as pressing or forcing the torch body 128.

The cap 132 may be made of a non-conductive material and may have various shapes according to the diameter and length of the inner tip 122. The cap 132 may also protect the tip 122 in a configuration in contact with or non-contact with the tip 122 in an assembled state with the torch body 1280. Accordingly, the cap 132 is a flux cored according to the present invention. Arc welding (FCAW) serves to block external objects from contacting the tip 122 during welding and to protect the tip 122 from the specter generated during welding.

The embodiment according to the present invention can protect the tip with a cap from external contact with the specter when performing flux cored arc welding, thereby improving the life and welding efficiency of the welding apparatus.

Meanwhile, in the torch device for flux cored arc welding according to the present invention, the connecting portion 140 and the adapter 100 may be modified as shown in FIGS. 15 to 17.

15 is a state in which the connection unit 140 and the adapter 100 are coupled, FIG. 16 is a state in which the connection unit 140 and the adapter 100 are separated, and FIG. 17 is a cross-sectional view illustrating only the socket side of the connection unit 140. Hereinafter, a description will be given with reference to FIGS. 15 to 17.

In the embodiment of FIGS. 15-17, the connection part 140 comprises a socket 142, a tightening ring 50, a locking device 40 and a stopper 21.

The socket 142 of the connecting portion 140 is inserted into the socket insertion hole 29 of the adapter 100 to conduct electricity. The through hole 158 is formed at the center as shown in FIGS. 9 and 10. It has a circular tube shape protruding a predetermined length. The socket 142 may further include a supply pipe 71 for transferring the self-protecting FCW to the inside of the through hole 158.

The through hole 158 of the socket 142 communicates with the wire supply port 26 of the adapter 100 to which the self-protecting FCW 300 is inserted and conveyed. Therefore, the self-protection FCW 300 may be transferred from the adapter 100 into the connection unit 140 and supplied.

In addition, the fastening ring 50 and the locking device 40 of the connection part 140 are inserted into the socket 142 through the through-hole formed in the center, and the fastening ring (Stopper 21 formed at the end of the socket 142) The assembly state of the 50 and the locking device 40 is maintained.

The stopper 31 supports the tightening ring 50 and the locking device 40 in an assembled state to prevent the detachment. The stopper 31 may be formed of an electrically conductive metal ring or an insulating o-ring made of rubber, and fitted in the socket 142. It is preferably configured to have a diameter larger than the minimum diameter of the through holes formed in the tightening ring 50 and the locking device 40.

In the case of the conductive metal ring, the stopper 31 may have elasticity while having a gap because the connection of the ring body is partially broken so that the stopper 31 can be easily inserted into the end of the socket 142. The elasticity of the stopper 31 opens the gap. It can be easily assembled to the end of the socket 142.

In addition, it is preferable that an annular groove is formed at the end of the socket 142 to which the stopper 31 is fitted to fix the position of the stopper 31.

By the above-described configuration, the stopper 31 may be installed at the end of the socket 142 to support the fastening ring 50 and the locking device 40 so as not to be separated from the socket 142.

Here, the locking device 40 includes a ring-type coupling 44 of a metallic material having a female threaded portion formed inside the non-conductive handle, and a tightening ring 50 is disposed inside the coupling 44. The assembly 44 has a space in which the tightening ring 50 can enter and exit. The tightening ring 50 forms a ring shape having a gap spaced in the longitudinal direction as shown in FIG. 18, and has a taping surface 54, and one end thereof is disposed to be inserted into the socket insertion hole 29.

In the above-described structure, the locking device 40 is screwed with the male screw of the threaded portion 22 formed at the inlet of the socket insertion hole 29 of the adapter 100 and rotates to the left or right to move forward or backward by screwing. When the locking device 40 is advanced, the tightening ring 50 is pushed toward the socket insert 29. Eventually, the tightening ring 50 is pushed inward and its taping surface 54 is tightened against the end of the socket insert 29. That is, when the socket 142 is inserted into the socket insertion hole 29, the socket 142 is coupled to the adapter 100 by tightening the tightening ring 50 that is pushed by the rotation of the locking device 40.

And, as described above, the adapter 100 into which the socket 142 is inserted has a conductive insertion portion 20 in which a wire supply hole 26 for supplying the self-protecting FCW 300 is connected to the inside of the socket insertion hole 29. It includes.

In addition, the adapter 100 is fixed to penetrate the case 5 of the main body 200 by the cover fixtures 12 and 14 of the non-conductive material which are integrated with each other inside and outside the case 5.

Specifically, the conductive insert 20 of the adapter 100 is inserted into the cover fixture 12 positioned outside the case 5, and the cover fixture 12 is inserted into the case with the conductive insert 20 inserted therein. It is arranged in the through hole formed in (5). At this time, another cover fixture 14 is installed inside the case 5. A lock nut 18 for screwing with a screw 24-1 formed on the outer surface of the conductive insert 20 is coupled to the cover fixture 14 in addition. Here, a washer 16 may be disposed between the lock nut 18 and the cover fixture 14. When the cover fixture 14 is tightened using the lock nut 18, the cover fixture 12 and the cover fixture 14 are brought into close contact with each other to assemble the case 5 so that the adapter 100 is connected to the main body 200. The case 5 may be installed in a fixed state.

The conductive insert 20 of the adapter 100 is made of a metallic material having a conductive material, and is inserted into the socket insert 29 to face-contact with the socket 142 of the connecting portion 140 coupled to the tightening ring 50. The power applied in the main body 200 may be transferred.

At this time, the conductive inserting portion 20 may fix the power nut 64 to the screw portion 24-2 formed on the outer surface extending into the case 5 in order to apply electric power, the power nut 64 is the power The applied wiring 62 is connected and the fixed state can be supported by the fixing nut 66 which is additionally assembled.

15 to 17, the self-protecting FCW 300 delivered from the main body 200 may be transferred from the wire supply port 26 to the torch 120 through the socket 142 and used for welding. . In addition, the power supplied from the main body 200 may be transferred from the conductive insert 20 to the torch 120 through the socket 142.

Therefore, the connection part 140 can be easily inserted into the socket insertion hole 29 of the conductive insertion part 20 of the main body 200, and the coupling between them is firmly supported by the locking device 40 and the fastening ring 50. Can be.

Thus, embodiments according to the present invention can be easily combined with a multifunction adapter to perform flux cored arc welding using self-protecting FCW without gas supply.

The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and changes without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas falling within the scope of the same shall be construed as falling within the scope of the present invention.

100: adapter 120: torch
140: connection portion 160: cable
200: main body 300: FCW

Claims (15)

An adapter is formed in which a socket insert for supplying power is formed, and a wire supply port for supplying a self-protecting flux cored wire is connected to the inside of the socket insert, and a locking device for fastening by locking to an inlet of the socket insert is fastened. ;
A torch having a detachable tip configured at one end and having a cap made of an insulating material at the end where the tip is detached to cover a portion of the tip;
A conductive connector inserted into the socket insertion hole and fixed by side tightening by the locking of the locking device, the conductive connector having a socket supplied with the power and the self-protecting flux cored wire, wherein the conductive connector is exposed to the socket; A connection part accommodated in the case and fixed; And
Torch for flux cored arc welding using self-protected flux cored wire, characterized in that the cable is inserted into the connection portion and the torch to form a coupling for electrical connection and transfer of the self-protected flux cored wire. Device.
The method of claim 1,
The torch includes a tip holder to which the tip is attached and detached, a connecting bolt for fastening the tip holder, and a torch body fastened to the connecting bolt, wherein the cap is screwed with at least one of an outer circumferential surface of the tip holder and the connecting bolt. Torch unit for flux cored arc welding with self-protecting flux cored wires to join.
The method of claim 1,
The torch includes a tip holder to which the tip is attached and detached, a connecting bolt for fastening the tip holder, and a torch body fastened to the connecting bolt, wherein the cap is crimped with at least one of an outer circumferential surface of the tip holder and the connecting bolt. Torch unit for flux cored arc welding using self-protected flux cored wires bonded together.
The method of claim 1, wherein the connection portion
A socket extending into an outer side of the case and being inserted into the socket inserting portion and extending into the socket inserting portion and extending into the fixing portion and extending into the case while the cable extends into the case. And a connecting portion for coupling the electrical connection and the transfer of the self-protected flux cored wire, and having a longitudinal through hole through which the self-protected flux cored wire penetrates. A conductive connector for transmitting;
A case in which a fixing jaw coupled to the fixing groove of the fixing portion is formed inward and accommodating the fixing portion of the conductive connector and the end of the cable coupled to the connecting portion and the connecting portion; And
And at least one crimping ring disposed on an outer surface to which the connection part and the cable are coupled to support a connection state between the wires drawn from the cable and the connection part by crimping by external hydraulic pressure. Torch device for flux cored arc welding.
The method of claim 4, wherein
A torch device for flux cored arc welding using a self-protected flux cored wire having a longitudinal or annular groove for arranging the wires in a connection portion of the conductive connector.
The method of claim 1, wherein the adapter,
A main body having a male screw formed at an inlet of the socket insertion hole which is formed by connecting the wire supply hole and the socket insertion hole to protrude outward; And
A female thread is formed to be coupled to the male screw of the main body, and a tightening ring having a gap spaced in the longitudinal direction is disposed inside the female screw, and when the screw is rotated for screwing with the main body, the tightening ring is inserted into the socket insertion hole of the main body. Torch device for flux cored arc welding using a self-protected flux cored wire comprising a; locking device for tightening and fixing the side of the socket is pushed in.
A torch coupled to cover a portion of the tip with an insulating cap at an end at which the tip is detached;
A cable, one end of which is inserted into the torch to form a coupling for electrical connection and self-protected flux cored wire transfer;
A fixing groove having a fixing groove formed on an outer side thereof, a cylindrical socket extending to one side of the fixing portion, and extending to the other side of the fixing portion to form a coupling for the electrical connection with the cable and the transfer of the self-protected flux cored wire. A conductive connector including a connection portion and having a longitudinal through hole formed therein for penetrating the self-protecting flux cored wire and transmitting power by itself due to a conductive material property; And
And a case having a fixing jaw coupled to the fixing groove of the fixing portion inwardly and accommodating the fixing portion of the conductive connector and the end of the cable coupled to the connecting portion and the connecting portion. Torch device for flux cored arc welding using flux cored wire.
The method of claim 7, wherein
At least one crimping ring in the case is disposed on an outer surface to which the connection portion of the conductive connector and the cable are coupled to support a coupling state between the wires drawn out of the cable and the connection portion by crimping by external hydraulic pressure. A torch device for flux cored arc welding using more self-contained flux cored wire.
The method of claim 8,
A torch device for flux cored arc welding using a self-protected flux cored wire having a longitudinal or annular groove for arranging the wires in a connection portion of the conductive connector.
The method of claim 7, wherein
The torch includes a tip holder to which the tip is attached and detached, a connecting bolt for fastening the tip holder, and a torch body fastened to the connecting bolt, wherein the cap is screwed with at least one of an outer circumferential surface of the tip holder and the connecting bolt. Torch unit for flux cored arc welding with self-protecting flux cored wires to join.
The method of claim 7, wherein
The torch includes a tip holder to which the tip is attached and detached, a connecting bolt for fastening the tip holder, and a torch body fastened to the connecting bolt, wherein the cap is crimped with at least one of an outer circumferential surface of the tip holder and the connecting bolt. Torch unit for flux cored arc welding using self-protected flux cored wires bonded together.
delete A socket made of a conductive material having a protruding circular tube shape having a predetermined length and having a through hole through which a self-protecting flux cored wire is conveyed in the center, a locking device inserted into the socket and having a female thread, and inserting into the socket And a tightening ring disposed in and out of the female screw of the locking device, and a stopper installed on an outer surface of the end of the socket to prevent the locking device and the tightening ring from detaching from the socket. A connection portion connected to the; And
It is fixed to the case of the main body includes a conductive connector fixed to the case of the main body, the wire supply port for supplying the self-protected flux cored wire and the socket insertion hole in which the socket is inserted in the longitudinal direction and having a threaded portion formed with a male screw at the inlet Torch device for flux cored arc welding comprising an adapter.
The torch device of claim 13, wherein the stopper is formed of any one of a conductive metal ring or an insulating o-ring made of rubber having a diameter larger than a minimum diameter of the through hole formed in the locking ring and the locking device. .
The torch device of claim 13, wherein the socket has an annular groove formed at an end thereof to fix the position of the stopper.

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