KR100678538B1 - Coupling apparatus for welding cable - Google Patents

Abstract

A coupling device for welding cable which improves workability and connects the cable to a wire stably by allowing a welding cable consisting of a gas line, a power line and a control line to be connected to a wire feeder or separated from the wire feeder through a first adapter and a second adapter in an one-touch coupling manner is provided. A coupling device(10) for a welding cable(1) comprises: a first adapter(20) which is connected to an end of the welding cable and formed in such a shape that a gas line(2), a power line(3) and a control line(4) are sequentially disposed from the center of the first adapter; and a second adapter(200) which is connected to a wire feeder and the first adapter and formed such that the second adapter is connected to the gas line, the power line and the control line through the first adapter, wherein the first adapter comprises: a first barrel(30) which is formed from a conductor, which has a gas path(32) formed in the center thereof such that the gas path is connected to the gas line, and which has the power line coupled onto an outer peripheral surface thereof; and a first case(70) which is formed from a nonconductor and coupled to the periphery of the first barrel such that a socket(90) connected to the control line is installed on the periphery of the first barrel, and wherein the second adapter comprises: a second barrel(210) which is formed from a conductor, which has a gas path(212) formed in the center thereof, and which is inserted and connected to the first barrel from an opposite side of the gas line such that gas and power source flow; and a second case(220) which is formed from a nonconductor and coupled to the periphery of the second barrel such that a terminal pin(250) inserted and connected to the socket from an opposite side of the control line is installed on the periphery of the second barrel.

Description

Coupling device for welding cable {COUPLING APPARATUS FOR WELDING CABLE}

1A and 1B are views for explaining a coupling device for a conventional welding cable;

2 is a perspective view showing a state before the first adapter and the second adapter of the coupling device for the welding cable according to the preferred embodiment of the present invention are connected;

3 is a plan view of a coupling device for a welding cable according to a preferred embodiment of the present invention showing a state in which the first adapter and the second adapter of FIG. 2 are connected;

4A and 4B are cross-sectional views before and after connecting a first adapter and a second adapter in a welding cable according to a preferred embodiment of the present invention;

5 is an exploded view of the elements constituting the first adapter in a welding cable according to a preferred embodiment of the present invention;

6 is a sectional view of a first adapter in a welding cable according to another preferred embodiment of the present invention;

7A to 7C are views sequentially showing a configuration of the first adapter of FIG. 6 and an assembly process thereof;

8A and 8B are views for explaining the configuration of a first adapter according to a preferred variant of the present invention;

9 is a view for explaining the coupling form of the first adapter and the second adapter according to a preferred modification of the present invention.

Explanation of symbols on the main parts of the drawings

1: Welding cable 2: Gas line

3: power line 4: control line

5: wire feeder 10: coupling device

20, 20 ': first adapter 30, 30': first barrel

32, 212: gas furnace 33, 51, 214: slope

34: slot 38, 80, 234: screw

40, 40 ': power line connection barrel 41: inclined portion

44: screw portion 46: gas line connection

50: pressing ring 60: nut

70: first case 90: socket

110, 110 ': first cover 200: second adapter

210: second barrel 220: second case

230: second cover 250: terminal pin

The present invention relates to a coupling device for a welding cable, and more particularly, for a welding cable that can more stably connect a welding cable consisting of a power line, a gas line and a control line with a wire feeder. It relates to a coupling device.

The inventors of the Republic of Korea Utility Model Registration No. 0341929 "Welding wire feeder" is a single cable is fixed in the frame to perform a disconnection work, the control line and gas line branched from a single cable is directly connected to the control box, By allowing the torch to be connected directly to the control box, the welding wire feeder can be used to connect the welding torch with the control line and gas line which extend from the welder when the object to be welded is far from the welder.

Since the welding wire feeder can minimize the wiring of the control line and the gas line in the wire feeder, the disconnection and damage of the control line and the gas line can be prevented to the maximum, and the torch control connector and the torch gas connector can be prevented. Is attached to the controller box and installed inside the frame to prevent breakage, and can prevent damage to the wire feeder caused by impacts and line jams during field use and movement.

However, despite the superiority of such a wire feeder, there was a problem that breakage occurs frequently at the connection portion of the wire feeder and the welding cable. On the other hand, in connection with the technology to ensure the stable connection between the wire feeder and the welding cable such as the Republic of Korea Utility Model Registration No. 0371065 "Adapter of carbon dioxide electric welding machine" has a thread on the head and tapered at the tip Insert the elastic plug into the fixed body integrated by protruding and installing the crusher, and screw it with the locking cap with the thread formed on the inner circumference, and connect the power cable of the wire feeder side with the ferrule to the rear end of the fixed body with the power socket, and connect it with the power socket. And the elastic plug is inserted into the outer periphery of the compression hole of the fixed body which is formed by threading the elastic plug to the head and protruding and installing the tapered crimping tip. Connect the power cable on the wire feeder side with ferrule to the rear end of the fixed body. And positive and suggest that an external power socket, and a binder, and a technology able to be detached by inserting a tube of insulation installed in the single cable leading end of the welding machine side.

In addition, Republic of Korea Utility Model Publication No. 20-0176587 "Single Cable Adapter" is a single cable connected to the welding machine main body and the gas hose, control cable and single cable adapter that protrudes to the outside to the end of the single cable is separated separately In a conventional single cable adapter connected to a feeder, a single cable adapter forms a gas nipple at one end and interconnects with a gas hose formed at the center of the single cable, and surrounds and supplies power to the outside of the gas hose. To one end of the single cable adapter, install the wire connector at the end of the control wire formed outside the power cable, and install the gas hose, power cable, and control wire in the center in order. Formed to surround the outside of the distal end A protective cover is installed in the wire feeder formed at the corresponding place where the single cable adapter is installed, and a power cable terminal and a fixing nut are formed at the middle of the feeder adapter. A technique for forming a nipple to install or detach a single cable adapter to a feeder adapter is disclosed.

However, this prior art, as shown in Figure 1a, the welding cable {1; consisting of the gas line 2, the power line 3 and the control line (4); Commonly referred to as a single cable}. In other words, Republic of Korea Utility Model Registration No. 0371065 "Adapter of carbon dioxide electric welding machine" has proposed a technology for the connection of the power line only, Republic of Korea Utility Model Publication No. 20-0176587 "Single cable adapter" Although a single cable consisting of a gas line, a power line, and a control line is intended, a connector for connecting the control line is configured to be connected separately, and a technical configuration for the connection of the power line is not presented.

For this reason, the coupling device 500 for the welding cable which connects the conventional welding cable 1 and the wire feeder 5, as shown in FIG. 1A and FIG. 1B, is the angle of the welding cable 1, respectively. Separate connectors 510, 520 and 530 are installed at the ends of the lines 2, 3 and 4, and the wire feeders 5 correspond to the respective connectors 510, 520 and 530 of the welding cable 1 It is a situation that the connector (512, 522, 532) is connected and used to install.

However, such a prior art has a problem of causing waste of working time and increase of maintenance cost due to frequent breakage of the coupling device 500. That is, a carbon dioxide welder to which a welding cable having such a structure is applied is generally used in shipyards and industries, and the welding cable is heavy and the wire feeder is heavy so that the welding torch or the welding is often moved by the welding torch. Therefore, when the welding cable is moved by separating the wire feeder, the coupling device 500 between the welding cable and the wire feeder is mainly broken or lost.

Thus, the coupling device for the welding cable according to the prior art does not have a structure to be connected to the gas line, the power line and the control line at a time, and to prevent damage to the connection portion caused by the impact generated in the field use, etc. There is no countermeasure.

Therefore, the present invention has been proposed in view of the above, and a new type of welding to improve the problems of the prior art to more stably connect the welding cable consisting of a gas line, a power line and a control line with a wire feeder. It is an object to provide a coupling device for a cable.

In particular, the present invention allows the gas line, the power line and the control line to be connected by the first adapter and the second adapter having an integral structure so that the welding cable can be connected to and disconnected from the wire feeder by a one-touch fastening method. It is an object of the present invention to provide a coupling device for a new type of welding cable that can improve the performance and make the connection of the wire cable stable.

According to a feature of the present invention for achieving the above object, the present invention connects the welding cable (1) consisting of the gas line (2), the power line (3) and the control line (4) to the wire feeder (5). In a coupling device for a welding cable, which is connected to the end of the welding cable (1), the gas line (2), the power line (3) and the control line (4) are sequentially arranged from the center. A first adapter 20 arranged to be arranged and connected; It is coupled to the wire feeder 5 and is connected to the first adapter 20 so as to be connected to the gas line 2, the power line 3 and the control line 4 through the first adapter 20. Including a second adapter 200;
The first adapter 20 is formed of a conductor, and a gas path 32 is formed on the center to be coupled to the gas line 2, and a first barrel to which the power line 3 is coupled on an outer circumferential surface thereof. 30) and,
The first case 70 is formed of an insulator and is coupled to the first barrel 30 and connected to the control line 4. The first case 70 is installed around the first barrel 30. and,
The second adapter 200 is formed of a conductor, and a gas path 212 is formed on the center thereof so that the gas and the power flow by being inserted into and coupled to the first barrel 30 on the opposite side of the gas line 2. To the second barrel 210,
A terminal pin 250 formed of an insulator and coupled to the second barrel 210 and inserted into the socket 90 on the opposite side of the control line 4 is coupled to the circumference of the second barrel 210. With a second case 220 is installed as,
The welding cable 1 is connected to the wire feeder 5 by the combination of the first adapter 20 and the second adapter 200.
In such a coupling device for a welding cable according to the present invention, the first barrel 30 is installed so as to be located behind the first case 70, so that the power line 3 is coupled to the outer circumferential surface It consists of a connection barrel 40 and a gas line connecting portion 46 extending rearward from the power line connecting barrel 40 and the gas line 2 is inserted and coupled to an outer circumferential surface thereof.
The first barrel 30 and the second barrel 210 are formed to have inclined surfaces 33 and 214 corresponding to portions joined to each other and are coupled in a wedge shape, and the inclined surface 33 of the first barrel 30 is formed. Slot 34 may be formed.
In the coupling device for a welding cable according to the present invention, the first adapter 20 further includes a screw 80 formed on the outer peripheral surface of the end of the first case 70, and the second adapter ( 200 is further provided with a second cover 230 is coupled to the second case 220, the screw 234 is formed at the end is coupled to the screw 80 of the first case 70,
The welding cable 1 and the first case 70 so as to cover a portion where the gas line 2, the power line 3, and the control line 4 branch from the rear end of the first case 70. It may further include a first cover (110, 110 ') coupled between the top and bottom.
In the coupling device for a welding cable according to the present invention as described above, the first adapter 20 further includes a hook protrusion 85 formed on the outer peripheral surface of the end of the first case 70.
The second adapter 200 is hingedly coupled to the second case 200, and a locking protrusion 156 coupled to the hook protrusion 85 of the first case 70 is formed at an end thereof. Further provided with a locker 150,
The welding cable 1 and the first case 70 so as to cover a portion where the gas line 2, the power line 3, and the control line 4 branch from the rear end of the first case 70. It may further include a first cover (110, 100 ') coupled between the top and bottom.
According to another feature of the present invention for achieving the above object, the present invention provides a welding cable (1) consisting of a gas line (2), a power line (3) and a control line (4) to the wire feeder (5) In the coupling device for a welding cable which can be connected, the gas line 2, the power line 3, and the control line 4 are connected to an end of the welding cable 1 in order from the center thereof. A first adapter 20 'which is arranged to be connected to each other; Coupled to the wire feeder 5 and connected to the gas line 2, power line 3 and control line 4 via the first adapter 20 ′ by being connected to the first adapter 20 ′. A second adapter 200 formed to be included;
The first adapter 20 'is formed of a conductor, a gas passage 32 is formed at the center thereof, and a first barrel 30' having a screw 38 formed at a rear end of the gas passage 32;
A first case 70 formed of an insulator and having a socket 90 coupled to the first barrel 30 'and connected to the control line 4 is installed around the first barrel 30'. Wow,
It has a threaded portion 44 is formed on the outer circumferential surface to be coupled to the screw 38 of the first barrel 30 'is coupled to the rear of the first barrel 30' is installed, is extended to the rear A gas line connecting portion 46 is formed on the outer circumferential surface to insert the gas line 2 into the outer circumferential surface, and between the screw portion 44 and the gas line connecting portion 46 of the screw portion 44 and the gas line connecting portion 46. A power line connection barrel 40 'having an inclination portion 41 formed to be larger than an outer diameter and having an inclination increasing from the screw portion 44 toward the gas line connecting portion 46;
An inclined surface 51 having an inclination corresponding to the inclination of the inclined portion 41 of the power line connection barrel 40 'is formed in such a manner that the power line 3 is in close contact with the outer circumferential surface of the inclined portion 41. Compression ring 50 is coupled to the inclined portion 41,
It is provided with a nut 60 is coupled to the screw portion 44 so that the pressing ring 50 is in close contact with the inclined portion 41,
The second adapter 200 is formed of a conductor, and a gas path 212 is formed at the center thereof so that the gas and the power supply are inserted into and coupled to the first barrel 30 'on the opposite side of the gas line 2. A second barrel 210 to flow,
A terminal pin 250 formed of an insulator and coupled to the second barrel 210 and inserted into the socket 90 on the opposite side of the control line 4 is coupled to the circumference of the second barrel 210. It is provided with a second case 220 is installed.
In the coupling device for a welding cable according to the present invention, the first adapter 20 'further includes a screw 80 formed on the outer peripheral surface of the end of the first case 70,
The second adapter 200 is coupled to the second case 220, and a second cover 230 having a screw 234 coupled to the screw 80 of the first case 70 at an end thereof is formed. Further provided,
The welding cable 1 and the first case 70 so as to cover a portion where the gas line 2, the power line 3, and the control line 4 branch from the rear end of the first case 70. It may further include a first cover (110, 110 ') coupled between the top and bottom.
In the coupling device for a welding cable according to the present invention as described above, the first adapter 20 ′ further includes a hook protrusion 85 formed on the outer peripheral surface of the end of the first case 70.
The second adapter 200 is hingedly coupled to the second case 200, and a locking protrusion 156 coupled to the hook protrusion 85 of the first case 70 is formed at an end thereof. Further provided with a locker 150,
The welding cable 1 and the first case 70 so as to cover a portion where the gas line 2, the power line 3, and the control line 4 branch from the rear end of the first case 70. It may further include a first cover (110, 100 ') coupled between the top and bottom.

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2 and 3, the present invention provides a coupling device 10 for a welding cable capable of a so-called one-touch connection. The coupling device 10 is connected to the end of the welding cable 1, the first adapter 20, 20 'is formed so that the gas line, the power line and the control line are arranged in order from the center to be connected; And the wire feeder 5 (see FIGS. 1A and 1B) and connected to the first adapter 20, 20 ′ to connect the gas line, power line and control line with the first adapter 20, 20 ′. And a second adapter 200 formed to be connected.

The coupling device 10 for a welding cable according to the present invention is a welding cable (1) consisting of a gas line (2), a power line (3) and a control line (4) to the wire feeder (5). Allows you to connect at once. Therefore, according to the coupling device 10 for a welding cable of the present invention, the welding cable 1 is connected to the wire feeder 5 at a time by the first adapter 20, 20 ′ and the second adapter 200. Since the welding cable 1 can be fastened and separated, the workability can be improved. In addition, since the gas line 2, the power line 3, and the control line 4 are integrally coupled to each other, the short circuit, disconnection, and gas leakage, etc., generated at the connecting portion can be effectively prevented, thereby preventing welding defects. do. Moreover, since it has an integral connection structure, twisting, bending, twisting, etc. which arise in the connection part between the welding cable 1 and the wire feeder 5 before and behind welding can be prevented effectively. In addition, it is possible to prevent the breakage and damage of the connection portion caused by the end of the welding cable (1) during the transfer of the welding cable (1). In particular, the first adapter 20 ′ coupled to the welding cable 1 side in the coupling device 10 for the welding cable according to the present invention can be configured to be assembled and disassembled in the field, thereby maintaining maintenance. It is convenient to induce continuity of work.

On the other hand, in the present invention, there is no specific reference to the technical configuration of the connection relationship between the wire feeder 5 and the second adapter 200 installed in the wire feeder 5, but the configuration and the configuration of such a wire feeder 5 2 The connection relationship of the adapter 200 may be easily applied from the technology disclosed by the inventor through the Korean Utility Model Registration No. 0341929 "Welding Wire Feeder".

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to FIGS. 2 to 9, and like reference numerals denote like elements for performing the same functions in FIGS. 1 to 9. Meanwhile, in the drawings, the technical contents of the coupling device for a general welding cable and a detailed description thereof are easily understood by those skilled in the art, and thus will be briefly omitted or omitted and shown mainly on parts related to the present invention. It was.

2 is a perspective view showing a state before the first adapter and the second adapter of the coupling device for the welding cable according to the embodiment of the present invention, Figure 3 is a first adapter and a second adapter of FIG. Is a plan view of a coupling device for a welding cable according to a preferred embodiment of the present invention showing a connected state, Figures 4a and 4b is a first adapter and a second in the welding cable according to a preferred embodiment of the present invention 5 is an exploded view of elements constituting the first adapter in a welding cable according to a preferred embodiment of the present invention, and FIG. 6 is a welding cable according to another preferred embodiment of the present invention. 7A to 7C are cross-sectional views of the first adapter of FIG. 6 and the assembly process thereof, and FIGS. 8A and 8B are views of the first adapter. 9 is a view for explaining the configuration of the first adapter according to a preferred modification of the invention, Figure 9 is a view for explaining the coupling form of the first adapter and the second adapter according to a preferred modification of the present invention.

In particular, Figures 2 and 3 is a view showing a preferred appearance form of the coupling device 10 according to two embodiments of the present invention, Figures 4a to 5 is a case of manufacturing in the company manufacturing the welding cable (1) 6A to 7C illustrate a structure of a first adapter 20 and a structure of a second adapter 200 commonly used in two preferred embodiments of the present invention. FIG. 8A and 8B are views for explaining the configuration of the first adapter 20 configured to be connected to the welding cable 1 in the field, and FIGS. 8A and 8B show the first adapter shown in FIGS. 6 to 7C. It is a modification of (20), and FIG. 9 is a modification of the fixing structure of the 1st adapter 20 and the 2nd adapter 200. FIG.

2 to 5, the coupling device 10 according to the preferred embodiment of the present invention includes a welding cable 1 composed of a gas line 2, a power line 3, and a control line 4. It is comprised so that it may be connected (one-touch connection) to the wire feeder 5 at once. This one-touch connection is made by the first adapter 20 installed at the end of the welding cable 1 and the second adapter 200 installed on the wire feeder 5 (see FIG. 1A or 1B, hereinafter same). .

The first adapter 20 is connected to an end of the welding cable 1 so that the gas line 2, the power line 3, and the control line 4 are sequentially arranged and connected from the center. To this end, the first adapter 20 includes a first barrel 30 formed of a conductor made of copper and a first case 70 formed of a nonconductor made of plastic. The first barrel 30 has a gas path 32 formed on the center thereof and is coupled to the gas line 2, and the power line 3 is coupled to the outer circumferential surface thereof. The first case 70 is coupled around the first barrel 30, and a socket 90 connected to the control line 4 is installed around the first barrel 30. Such a configuration of the first adapter 20 may be formed in various ways. For example, in the present embodiment, the first case 70 is coupled to the first barrel 30 through an insert injection process. Of course, the coupling structure of the first barrel 30 and the first case 70 may use a different configuration.

In the coupling device 10 according to the present exemplary embodiment, the first barrel 30 and the second barrel 210 are formed to have inclined surfaces 33 and 214 corresponding to each other to be coupled to each other in a wedge shape. This ensures that the coupling is complete and effectively blocks the leakage of gas. In particular, the first barrel 30 and the second barrel 210 are more stably formed by forming the slot 34 on the inclined surface 33 of the first barrel 30 so that the first barrel 30 acts like a collet chuck. To be combined.

In addition, the first barrel 30 includes a power line connection barrel 40 extending rearward of the first case 70 and a gas line connection portion 46 extending rearwardly from the power line connection barrel 40. The power supply line 3 is coupled to the outer circumferential surface of the power line connection barrel 40, and the gas line 2 is inserted into and coupled to the outer circumferential surface of the gas line connection portion 46. Such a configuration of the first barrel 30 is proposed to be manufactured by the company providing the welding cable (1). In other words, in the present embodiment, the first barrel 30 is integrally formed with a portion located in the first case 70, the power line connecting barrel 40, and the gas line connecting portion 46. In addition, the power line connecting barrel 40 and the gas line connecting portion 46 have a step difference from each other so that the gas line 2, the power line 3, and the control line 4 do not interfere with each other and the center of the first barrel 30 is not affected. To be positioned sequentially. Of course, an insulator such as an insulating tape may be used between the lines branched from the welding cable 1 and the respective lines of the portions to be connected. By this configuration, the power line 3 and the gas line 2 are fixed to the band 47 through a bending machine.

The second adapter 200 is connected to the wire feeder 5 and connected to the first adapter 20 so that the second adapter 200 is connected to the gas line 2, the power line 3, and the control line 4 through the first adapter 20. It is formed to be connected. The second adapter 200 has a second barrel 210 and a second case 220 corresponding to the first adapter 20 described above. The second barrel 210 is formed of a conductor, and a gas path 212 is formed on the center so that the gas and the power flow by being inserted into and coupled to the first barrel 30 on the opposite side of the gas line 2. The second case 220 is formed of an insulator, and the terminal pin 250 coupled to the second barrel 210 and inserted into the socket 90 on the opposite side of the control line 4 is coupled to the second barrel 210. Is installed around). Of course, the second adapter 200 may form the second case 220 on the second barrel 210 and the terminal pin 250 through insert injection as described above. Here, the terminal pin 250 applies a component that is usually used for electrical connection, such as the socket 90 described above.

Meanwhile, the coupling device 10 according to the present exemplary embodiment has a fixing structure for stably coupling the first adapter 20 and the second adapter 200. That is, the first adapter 20 and the second adapter 220 are prevented from being arbitrarily separated after joining through screwing, and the short circuit of the connection part is prevented due to an impact that may occur during operation. To this end, a screw 80 is formed on the outer peripheral surface of the end of the first case 70. The second adapter 200 is coupled to the second case 220, and a second cover 230 having a screw 234 coupled to the screw 80 of the first case 70 is formed at an end thereof. . In the present embodiment, the second cover 230 is supported by the flange 228 formed at the rear end of the second case 220. And the edge 76 is formed so that the insertion groove 78 is formed at the rear end of the first case 70, the insertion protrusion 232 is formed in the front end of the second case 220 is inserted into the insertion groove 78. It is to be combined to have a coupling structure to seal the inside. Particularly, in the present embodiment, the guide groove 84 is formed on the rear surface of the first case 70 of the first adapter 20 for the stable fit of the first adapter 20 and the second adapter 200, and the second The guide boss 224 is formed on the front surface of the second case 220 of the adapter 200 to guide the coupling direction when the first adapter 20 and the second adapter 200 are coupled to each other. In addition, the guide groove 82 is formed in the first case 70 to be positioned at the rear end of the first barrel 30, and the guide boss 226 is arranged in the second case 220 to be positioned around the second barrel 210. ) So that the connecting portion of the first barrel 30 and the second barrel 210 is more stably supported.

Meanwhile, the coupling device 10 according to the present embodiment protects the gas line 2, the power line 3, and the control line 4 which are branched from the welding cable 1 and coupled to the first adapter 20. It has a first cover (110, 110 '). The first cover 110, 110 ′ is a welding cable 1 so as to cover a portion where the gas line 2, the power line 3, and the control line 4 branch from the rear end of the first case 70. It is coupled up and down between the first case (70). The upper and lower first cases 110 and 110 ′ form screw grooves 112 and 112 ′ and are fixed using screws.

Through such a configuration, the first adapter 20 according to the present embodiment couples the first barrel 30 and the first case 70 through insert injection, and the gas line connecting portion 46 of the first barrel 30 is connected. The gas line 2 of the welding cable 1 is coupled to the power line 3, and then the power line 3 is coupled onto the power line connection barrel 40. After the socket 90 is coupled to the control line 4, the socket 90 is inserted into the socket hole 74 (see FIG. 5) formed in the first case 70. The assembly work is completed by coupling the first cover 110 and 110 ′ up and down between the welding cable 1 and the first case 70.

Meanwhile, FIGS. 6 to 7C are views for explaining the configuration of the first adapter 20 configured to connect the coupling device 10 according to the present invention to the welding cable 1 in the field.

The first adapter 20 ′ of the coupling device 10 according to the present embodiment is made under the same technical concept as the coupling device 10 as described above, and is the first of the coupling device 10 of the above-described embodiment. Unlike the adapter 20, the operator can be assembled and disassembled in the field. Such a configuration takes into account the fact that it may be frequently damaged by being installed at the end of the welding cable 1. That is, such a first adapter 20 'is to be repaired by the operator in the field, even if broken.

6 to 7C, the first adapter 20 ′ of the coupling device 10 according to the present embodiment is configured such that the power line connection barrel 40 ′ is detachable from the first barrel 30 ′. do. That is, the screw 38 is formed on the gas path 32 of the rear end of the inclined surface 33 of the 1st barrel 30 '. And the power line connection barrel 40 'has the screw part 44 and the inclination part 41, and has the gas line connection part 46 extended from the rear end of the inclination part 41. FIG. The screw portion 44 of the power line connection barrel 40 'is provided with a screw on its outer circumferential surface to be coupled to the screw 38 of the first barrel 30'. The inclined portion 41 is formed between the screw portion 44 and the gas line connecting portion 46 to be larger than the outer diameters of the screw portion 44 and the gas line connecting portion 46, and the screw portion 44 faces the gas line connecting portion 46. It is formed to have an increasing slope. The pressing ring 50 has an inclined surface 51 having an inclination corresponding to the inclination of the inclined portion 41 therein, so that the power line 3 is in close contact with the outer circumferential surface of the inclined portion 41. Combined. And the nut 60 is coupled to the threaded portion 44 so that the pressing ring 50 is in close contact with the inclined portion (41).

Thus, the first adapter 20 'of the coupling device according to the present embodiment is the power line of the welding cable 1 on the inclined portion 41 formed in the middle of the power line connecting barrel 40' ( 3) to put, the pressing ring 50 is fixed by pressing the nut (60). The gas line 2 is inserted into and coupled to the gas line connecting portion 46. The gas line connecting portion 46 forms a protrusion 48 and is fixed by the fixing cap 100. In the present embodiment, the front end of the inclined portion 41 and the first barrel 30 'of the first barrel 30' and the power line connecting barrel 40 'for tight fixing and the close contact of the pressing ring 50 are provided. The stages 49 and 39 are placed at the front end so that the first barrel 30 'and the power line connecting barrel 40' are coupled to each other by using a spanner or the like.

Meanwhile, as shown in FIGS. 8A and 8B, the first adapter 20 ′ may have a more rigid coupling structure, and the first case 70 may be assembled in the field. That is, referring to FIGS. 8A and 8B, in the above-described embodiment, the first case 70 may be integrated with the first barrel 30 ′ through insert injection, but may be separately configured to be assembled in the field. Can be. To this end, a screw groove 31 is formed in the first barrel 30 ', and a bolt hole 71 is formed in a position corresponding to the screw groove 31 of the first barrel 30' in the first case 70. It is formed so that the first case 70 can be coupled to the first barrel 30 ′ with the bolt 120. At this time, the outer peripheral surface of the slot 34 of the first barrel 30 'is limited in order to limit the extent to which the first barrel 30' is opened when the first barrel 30 'and the second barrel 210 (see FIG. 4A) are coupled. The stop ring 140 is coupled, and the rubber ring 130 is installed at the contact portion of the second barrel 210 to prevent the leakage of gas. Then, the band 47 is installed on the outer circumferential surface of the gas line connecting part 46, and the screw 102 is formed on the fixing cap 100 so that the gas line 2 can be easily fixed.

In addition, as shown in FIG. 9, the first adapter 20 and the second adapter 200 may be fixed by the locker 150. In this case, the hook adapter 85 is formed on the outer circumferential surface of the end of the first case 70 of the first adapter 20. And the engaging projection 156 is coupled to the second adapter 20 so as to be hinged to the second case 220 by a pin 152, and coupled to the hook projection 85 of the first case 20 at the end. Rocker 150 is formed is installed. Such a locker 150 may be applied to a form that exerts a fixed force using the spring 154 in the conventional fastening structure.

As described above, the coupling device for a welding cable according to a preferred embodiment of the present invention has been shown in accordance with the above description and drawings, but this is only an example and is within the scope not departing from the technical idea of the present invention. It will be understood by those skilled in the art that various changes and modifications are possible in the art.

According to the coupling device for a welding cable according to the present invention, the welding cable can be connected to the wire feeder at a time by the first adapter and the second adapter, so that the welding cable can be fastened and detached to improve workability. . In addition, since the gas line, the power line, and the control line are integrally coupled, short circuits, disconnections, and gas leaks generated at the connecting portion are effectively prevented, thereby preventing welding defects. In addition, since it has an integral connection structure, it is possible to effectively prevent torsion, bending, twisting, etc. generated in the connection portion between the welding cable and the wire feeder before and after welding. In addition, it is possible to prevent the breakage and damage of the connection portion caused by the drag of the end of the welding cable during transfer of the welding cable. In particular, the first adapter coupled to the welding cable side in the coupling device for the welding cable according to the present invention can be configured to be assembled and disassembled in the field, so that it is easy to maintain and induce continuity of work. have.

Claims (7)

In the coupling device for the welding cable which allows the welding cable (1) consisting of the gas line (2), the power supply line (3) and the control line (4) to be connected to the wire feeder (5), A first adapter (20) connected to an end of the welding cable (1) so that the gas line (2), the power line (3) and the control line (4) are sequentially arranged and connected from the center; It is coupled to the wire feeder 5 and is connected to the first adapter 20 so as to be connected to the gas line 2, the power line 3 and the control line 4 through the first adapter 20. Including a second adapter 200; The first adapter 20 is formed of a conductor, and a gas path 32 is formed on the center to be coupled to the gas line 2, and a first barrel to which the power line 3 is coupled on an outer circumferential surface thereof. 30) and, The first case 70 is formed of an insulator and is coupled to the first barrel 30 and connected to the control line 4. The first case 70 is installed around the first barrel 30. and, The second adapter 200 is formed of a conductor, and a gas path 212 is formed on the center thereof so that the gas and the power flow by being inserted into and coupled to the first barrel 30 on the opposite side of the gas line 2. To the second barrel 210, A terminal pin 250 formed of an insulator and coupled to the second barrel 210 and inserted into the socket 90 on the opposite side of the control line 4 is coupled to the circumference of the second barrel 210. It is provided with a second case 220 to be installed, so that the welding cable 1 is connected to the wire feeder 5 by the combination of the first adapter 20 and the second adapter 200. Coupling arrangements for welding cables. The method of claim 1, The first barrel 30 is installed to be located behind the first case 70, so that the power line connection barrel 40 to which the power line 3 is coupled to the outer circumferential surface, and the power line connection barrel 40 A gas line connecting portion 46 extending rearward from the gas line 2 to be inserted into and coupled to an outer circumferential surface thereof, The first barrel 30 and the second barrel 210 are formed to have inclined surfaces 33 and 214 corresponding to portions joined to each other and are coupled in a wedge shape, and the inclined surface 33 of the first barrel 30 is formed. Coupling device for a welding cable, characterized in that the slot 34 is formed. The method of claim 2, The first adapter 20 further includes a screw 80 formed on the outer peripheral surface of the end of the first case 70, The second adapter 200 is coupled to the second case 220, and a second cover 230 having a screw 234 coupled to the screw 80 of the first case 70 at an end thereof is formed. Further provided, The welding cable 1 and the first case 70 so as to cover a portion where the gas line 2, the power line 3, and the control line 4 branch from the rear end of the first case 70. Coupling device for a welding cable, characterized in that it further comprises a first cover (110, 110 ') coupled up and down between. The method of claim 2, The first adapter 20 further includes a hook protrusion 85 formed on the outer peripheral surface of the end of the first case 70, The second adapter 200 is hingedly coupled to the second case 200, and a locking protrusion 156 coupled to the hook protrusion 85 of the first case 70 is formed at an end thereof. Further provided with a locker 150, The welding cable 1 and the first case 70 so as to cover a portion where the gas line 2, the power line 3, and the control line 4 branch from the rear end of the first case 70. Coupling device for a welding cable, characterized in that it further comprises a first cover (110, 100 ') coupled up and down between. In the coupling device for the welding cable which allows the welding cable (1) consisting of the gas line (2), the power supply line (3) and the control line (4) to be connected to the wire feeder (5), A first adapter (20 ') connected to an end of the welding cable (1) and formed such that the gas line (2), the power line (3) and the control line (4) are sequentially arranged and connected from the center; Coupled to the wire feeder 5 and connected to the gas line 2, power line 3 and control line 4 via the first adapter 20 ′ by being connected to the first adapter 20 ′. A second adapter 200 formed to be included; The first adapter 20 'is formed of a conductor, a gas passage 32 is formed at the center thereof, and a first barrel 30' having a screw 38 formed at a rear end of the gas passage 32; A first case 70 formed of an insulator and having a socket 90 coupled to the first barrel 30 'and connected to the control line 4 is installed around the first barrel 30'. Wow, It has a threaded portion 44 is formed on the outer circumferential surface to be coupled to the screw 38 of the first barrel 30 'is coupled to the rear of the first barrel 30' is installed, is extended to the rear A gas line connecting portion 46 is formed on the outer circumferential surface to insert the gas line 2 into the outer circumferential surface, and between the screw portion 44 and the gas line connecting portion 46 of the screw portion 44 and the gas line connecting portion 46. A power line connection barrel 40 'having an inclination portion 41 formed to be larger than an outer diameter and having an inclination increasing from the screw portion 44 toward the gas line connecting portion 46; An inclined surface 51 having an inclination corresponding to the inclination of the inclined portion 41 of the power line connection barrel 40 'is formed in such a manner that the power line 3 is in close contact with the outer circumferential surface of the inclined portion 41. Compression ring 50 is coupled to the inclined portion 41, It is provided with a nut 60 is coupled to the screw portion 44 so that the pressing ring 50 is in close contact with the inclined portion 41, The second adapter 200 is formed of a conductor, and a gas path 212 is formed at the center thereof so that the gas and the power supply are inserted into and coupled to the first barrel 30 'on the opposite side of the gas line 2. A second barrel 210 to flow, A terminal pin 250 formed of an insulator and coupled to the second barrel 210 and inserted into the socket 90 on the opposite side of the control line 4 is coupled to the circumference of the second barrel 210. Coupling device for a cable for welding, characterized in that it comprises a second case (220) installed. The method of claim 5, The first adapter 20 'further includes a screw 80 formed on the outer peripheral surface of the end of the first case 70, The second adapter 200 is coupled to the second case 220, and a second cover 230 having a screw 234 coupled to the screw 80 of the first case 70 at an end thereof is formed. Further provided, The welding cable 1 and the first case 70 so as to cover a portion where the gas line 2, the power line 3, and the control line 4 branch from the rear end of the first case 70. Coupling device for a welding cable, characterized in that it further comprises a first cover (110, 110 ') coupled up and down between. The method of claim 5, The first adapter 20 ′ further includes a hook protrusion 85 formed on an outer circumferential surface of the end of the first case 70. The second adapter 200 is hingedly coupled to the second case 200, and a locking protrusion 156 coupled to the hook protrusion 85 of the first case 70 is formed at an end thereof. Further provided with a locker 150, The welding cable 1 and the first case 70 so as to cover a portion where the gas line 2, the power line 3, and the control line 4 branch from the rear end of the first case 70. Coupling device for a welding cable, characterized in that it further comprises a first cover (110, 100 ') coupled up and down between.

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