KR20020042604A - Adapter structure of extention cable for CO2 arc welder - Google Patents

Adapter structure of extention cable for CO2 arc welder Download PDF

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Publication number
KR20020042604A
KR20020042604A KR1020020027525A KR20020027525A KR20020042604A KR 20020042604 A KR20020042604 A KR 20020042604A KR 1020020027525 A KR1020020027525 A KR 1020020027525A KR 20020027525 A KR20020027525 A KR 20020027525A KR 20020042604 A KR20020042604 A KR 20020042604A
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South Korea
Prior art keywords
adapter
nipple
spring
plug
adapter plug
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KR1020020027525A
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Korean (ko)
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이재돈
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이재돈
경성용접재 주식회사
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Priority to KR1020020027525A priority Critical patent/KR20020042604A/en
Publication of KR20020042604A publication Critical patent/KR20020042604A/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00Arc welding or cutting
    • B23K9/32Accessories
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00Arc welding or cutting
    • B23K9/16Arc welding or cutting making use of shielding gas
    • B23K9/173Arc welding or cutting making use of shielding gas and of a consumable electrode
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R31/00Coupling parts supported only by co-operation with counterpart
    • H01R31/06Intermediate parts for linking two coupling parts, e.g. adapter

Abstract

PURPOSE: An adapter structure of an extended cable for CO2 arc welder is provided to prevent CO2 gas from leaking or flowing backward by constituting an end sill portion inside an adapter plug and a cover insert inside an adapter nipple. CONSTITUTION: An adapter structure includes an adapter plug coupled to both sides of an extended cable on which, at both sides, grip covers are covered. A nipple coupling portion(4), a cable coupling portion(2) and a hose coupling portion(3) are respectively formed to one end, the other end and an outer side of the plug. In the adapter plug are formed a spring(7), a cover(8) around the spring, and a spring liner(6). On the nipple coupling portion are included a wire through hole(14) at one end, a spring coupling portion(16) at other end, and an adapter nipple(13) at outer side. A cover insert(17), into which the cover is inserted, is formed on an inner circumference of the adapter nipple. An end sill(5) is formed on a back inner circumference of the nipple coupling portion so that a packing(9) is interposed between an end portion of the adapter nipple and the end sill of the adapter plug upon coupling the adapter nipple to nipple coupling portion of the adapter plug.

Description

씨오투 아크용접기용 연장케이블의 어댑터구조{Adapter structure of extention cable for CO2 arc welder}Adapter structure of extention cable for CO2 arc welder

본 발명은 CO2 아크용접기용 연장케이블의 어댑터구조에 관한 것으로, 더욱 상세하게는 CO2 아크용접기용 연장케이블의 양단에 결합되어 연장케이블내에 내장된 스프링라이너가 삽입되는 어댑터플러그의 내측에는 단턱부를 돌출 형성하고, 스프링라이너의 스프링끝단부에 체결되어 어댑터플러그의 일단부에 체결되는 어댑터니플의 내측일부에는 스프링라이너의 커버가 삽입되는 커버삽입부를 형성하여 어댑터플러그에 어댑터니플을 체결할 때 어댑터플러그의 끝단부와 어댑터플러그의 단턱부사이에 패킹 및 척을 개재하여 견고하게 밀폐되도록 하므로써, 연장케이블의 가스호스를 통해 공급되는 CO2가스가 스프링라이너로 유입되어 누설되거나 역류되는 것을 방지하도록 하는 CO2 아크용접기용 연장케이블의 어댑터구조에 관한 것이다.The present invention relates to an adapter structure of an extension cable for a CO2 arc welder, and more particularly, to protrude a stepped portion inside an adapter plug which is coupled to both ends of the extension cable for a CO2 arc welder and into which a spring liner embedded in the extension cable is inserted. The inner part of the adapter nipple which is fastened to the spring end of the spring liner and fastened to one end of the adapter plug forms a cover insertion part into which the cover of the spring liner is inserted, and the end of the adapter plug when fastening the adapter nipple to the adapter plug. Extension of the CO2 arc welder to prevent the CO2 gas supplied through the gas hose of the extension cable from flowing into the spring liner and leaking or flowing back through the packing and the chuck between the part and the step of the adapter plug. It relates to the adapter structure of the cable.

일반적으로 CO2 아크용접은 연속적으로 공급되는 소모식 용접봉(와이어)과 용접하고자 하는 모재 사이에 전기적 아아크를 발생시키는 동시에 아아크와 용융지 보호를 위하여 토오치 선단에 형성된 가스노즐을 통해 순수한 CO2가스를 분출시켜 용접부주위의 공기를 밀어 내어 차단함으로써, 용접금속의 산화 및 질화를 방지하여 양호한 용접부를 형성시키게 용접방법으로 각종 산업현장에서 널리 사용되고 있다.In general, CO2 arc welding generates electric arc between the continuously supplied consumable electrode (wire) and the base material to be welded, while simultaneously spraying pure CO2 gas through the gas nozzle formed at the tip of the torch to protect the arc and melted paper. It is widely used in various industrial sites as a welding method to push out and block air around the welded portion to prevent oxidation and nitriding of the weld metal to form a good welded portion.

이와 같이 사용되고 있는 CO2 아크용접은 도 1에 도시되어 있는 바와 같이 전력 등을 공급 및 제어하는 장치인 용접기(31)와 CO2가스를 공급하는 가스통(30)이 연결되며 용접봉(와이어)이 권취된 와이어송급장치(32)에 토오치(35)를 연결하여 사용하게 되는데, 조선소나 중공업현장과 같이 대규모의 선박이나 철구조물 등을 오르내리며 작업을 해야하는 광범위한 작업현장인 경우에는 상기 장비들을 작업장소까지 운반하여 사용하기가 극히 곤란하므로, 상기 와이어송급장치(32)와 토오치(35)사이에 양단부에 어댑터(34)가 고정설치되는 연장케이블(40)과 상기 와이어송급장치(32)에 의해 공급되는 용접봉(와이어)을 토오치(35)측으로 끌어당겨 공급하게 되는 연장송급장치(36)를 연결하여 사용하게 된다.As shown in FIG. 1, the CO 2 arc welding used as described above is connected to a welding machine 31, which is a device for supplying and controlling electric power, and a gas cylinder 30 for supplying CO 2 gas, and having a welding rod (wire) wound thereon. Torch 35 is connected to the feeding device 32, and in the case of an extensive work site that needs to work up and down a large ship or steel structure such as a shipyard or a heavy industry site, the equipment is transported to the work place. Since it is extremely difficult to use, it is supplied by the wire feeding device 32 and the extension cable 40 in which the adapter 34 is fixedly installed at both ends between the wire feeding device 32 and the torch 35. An extension feeding device 36 which draws a welding rod (wire) toward the torch 35 and supplies the same is used.

상기 연장케이블(40)은 유연성과 전기절연성이 높은 고무튜브(41)의 내측에 와이어(45)에 전력을 공급하는 전력선(42)과, 와이어송급장치(32) 및 모터, 아크스타트 보상회로 및 제어회로, 출력안정회로, 과부하보호장치, 스위치절환회로 등을 제어하는 컨트롤선(43)과 가스통(30)으로부터 CO2가스가 공급되는 가스호스(44)가 내장되고, 이 가스호스(44)의 내부에는 상기 와이어송급장치(32)에 의해 연속적으로 공급되는 와이어(45)가 가스호스(44)내에서 굴곡되지 않고 직진하도록 안내하는 스프링라이너(6)가 내장되어 있으며, 상기 스프링라이너(6)는 와이어(45)가 안내되는 스프링(7)과 스프링(7)의 외측을 감싸도록 설치되어 가스호스(44)의 내부에 흐르는 CO2가스가 스프링(7)의 내측으로 유입되어 역류되는 것을 방지하게 되는 커버(8)로 구성되어 있다.The extension cable 40 includes a power line 42 for supplying power to the wire 45 inside the rubber tube 41 having high flexibility and electrical insulation, a wire supply device 32, a motor, an arc start compensation circuit, A control line 43 for controlling a control circuit, an output stabilization circuit, an overload protection device, a switch switching circuit, and the like, and a gas hose 44 to which CO 2 gas is supplied from the gas cylinder 30 are incorporated. There is a spring liner 6 to guide the wire 45 continuously supplied by the wire feeding device 32 to go straight without bending in the gas hose 44, the spring liner 6 The wire 45 is installed to surround the outside of the spring 7 and the spring 7 is guided to prevent the CO 2 gas flowing inside the gas hose 44 is introduced into the spring 7 to flow back It consists of the cover 8 which becomes.

그리고, 상기 연장케이블(40)의 양단에 각각 설치되는 어댑터(34)는 도 2와 도 3에 도시되어 있는 바와 같이 일단부의 내측면에 니플체결부(4)가 형성되며 타단부의 외측면에 케이블결합부(2)가 형성되고 외부일측에 호스체결부(3)가 형성되어 있는 어댑터플러그(1)와, 일측에 와이어통공(14)이 형성되고 타측의 내주면전체에 스프링체결부(16)가 형성되며 외주면일측에는 숫나사부(15)가 형성되어 상기 어댑터플러그(1)의 일단부에 형성된 니플체결부(4)에 체결되는 어댑터니플(13)과, 상기 어댑터플러그(1)의 호스체결부(3)에 체결되는 가스연결관(48)과, 상기 어댑터플러그(1)의 케이블결합부(2)에 결합되는 연장케이블(40)로부터 인출되는 컨트롤선커넥터(47)와, 상기 어댑터플러그(1)의 양측면을 감싸도록 설치되어 볼트(50)로 결합되는 그립커버(49)로 구성되어 있다.In addition, the adapters 34 respectively installed at both ends of the extension cable 40 have a nipple fastening portion 4 formed at the inner side of one end and the outer side of the other end as shown in FIGS. 2 and 3. The adapter plug 1 having the cable coupling part 2 formed thereon and the hose connection part 3 formed at one outer side thereof, and the wire through hole 14 formed at one side thereof, and the spring fastening portion 16 all over the inner circumferential surface of the other side. A male thread portion 15 is formed at one side of the outer circumferential surface thereof, and an adapter nipple 13 fastened to the nipple fastening portion 4 formed at one end of the adapter plug 1 and a hose fastening of the adapter plug 1. A control line connector 47 drawn from the gas connecting pipe 48 fastened to the part 3, the extension cable 40 coupled to the cable coupling part 2 of the adapter plug 1, and the adapter plug. It is installed to surround both sides of the (1) is composed of a grip cover 49 is coupled to the bolt (50) .

상기와 같이 구성되어 있는 종래의 연장케이블의 어댑터구조에서는 어댑터플러그(1)와 어댑터니플(13)을 체결할 때 어댑터플러그(1)의 케이블결합부(2)를 연장케이블(40)의 일단부에 삽입하여 결합시킨 후, 도 3에 도시되어 있는 바와 같이 연장케이블(40)의 내부에 삽입되어 있는 스프링라이너(6)를 상기 어댑터플러그(1)의 내부로 관통시켜 스프링라이너(6)의 끝단부에 돌출되는 스프링(7)에 상기 어댑터니플(13)의 스프링체결부(16)가 체결되도록 한 다음, 어댑터니플(13)의 외측면일측에 형성된 숫나사부(15)를 이용하여 어댑터플러그(1)의 일측내주면에 형성된 니플체결부(4)에 체결하여 고정시키게 된다.In the conventional adapter structure of the extension cable configured as described above, when the adapter plug 1 and the adapter nipple 13 are fastened, the cable coupling portion 2 of the adapter plug 1 is connected to one end of the extension cable 40. After inserting into the coupling, as shown in FIG. 3, the spring liner 6 inserted into the extension cable 40 passes through the adapter plug 1 to the end of the spring liner 6. The spring fastening portion 16 of the adapter nipple 13 is fastened to a spring 7 protruding from the portion, and then an adapter plug (using a male screw part 15 formed on one side of the outer surface of the adapter nipple 13) is used. It is fixed by fastening to the nipple fastening portion 4 formed on one side inner peripheral surface of 1).

그러나, 상기와 같이 이루어진 종래의 연장케이블용 어댑터는 도 3에 도시되어 있는 바와 같이 어댑터플러그(1)의 일단부에 결합되는 어댑터니플(13)의 끝단부와 어댑터플러그(1)의 내부에 삽입되어 어댑터니플(13)과 체결되는 스프링라이너 (6)의 스프링(7)외부를 감싸는 커버(8)사이에 필연적으로 틈이 발생하게 되므로, 20m ~ 30m에 달하는 긴 연장케이블(40)내의 가스호스(44)를 통해 공급되는 CO2가스가 이러한 틈을 통해서 스프링라이너(6)의 내측으로 유입되어 와이어통공(14)을 통해 외부로 누설되거나 가스호스(44)내부와 스프링라이너(6)의 스프링(7)내부의 압력차에 의해 스프링(7)의 내부를 통해 가스통(30)측으로 역류하게 되므로써, CO2가스의 압력이 현저하게 떨어지게 되어 토오치(35)끝단부에서의 CO2가스공급이 불안정하게 됨으로 인하여 용접부의 주변공기를 차폐하는 보호가스의 역할을 제대로 수행하지 못하여 용접부위에 기포 등의 용접결함이 발생하게 되는 치명적인 문제점이 있었다.However, the conventional extension cable adapter made as described above is inserted into the end of the adapter nipple 13 and the inside of the adapter plug 1 coupled to one end of the adapter plug 1 as shown in FIG. Since a gap is inevitably generated between the cover of the spring 7 of the spring liner 6 which is fastened to the adapter nipple 13, the gas hose in the long extension cable 40 reaching 20 m to 30 m. The CO 2 gas supplied through the 44 flows into the spring liner 6 through such a gap and leaks to the outside through the wire through hole 14, or the gas hose 44 inside the spring of the spring liner 6 ( 7) As the internal pressure difference flows back to the gas cylinder 30 through the inside of the spring 7, the pressure of the CO 2 gas is remarkably dropped, and the supply of CO 2 gas at the end of the torch 35 becomes unstable. Due to the surrounding area of the weld Failure to act as a protective shielding gas group properly was a fatal problem that the welding defects such as bubbles are generated on the weld.

또한, 이와 같은 종래의 연장케이블용 어댑터로서는 용접작업중에 CO2가스가 누설되거나 역류되는 문제뿐만 아니라 작업장의 이동이나 휴식시간 및 비작업시에 도 CO2가스의 누설이 계속적으로 발생되므로, 조선소와 중공업현장과 같이 연장케이블(40)이 연결된 다수의 CO2 아크용접기가 사용되고 있는 대규모의 작업현장에서는 CO2가스의 누설로 인한 비용손실이 상당히 심각한 실정이었다.In addition, in the conventional extension cable adapter, not only the problem of CO2 gas leakage or backflow during the welding operation, but also the CO2 gas leakage continuously occurs during the movement, rest time and non-working of the workplace, so that the shipyard and the heavy industry site As described above, the cost loss due to leakage of CO2 gas was very serious in a large-scale work site in which a plurality of CO2 arc welders connected to the extension cable 40 were used.

상기 문제점을 해결하기 위하여 본 발명은 CO2 아크용접기용 연장케이블의 양단에 결합되어 연장케이블내에 내장된 스프링라이너가 삽입되는 어댑터플러그의 내측에는 단턱부를 돌출 형성하고, 스프링라이너의 스프링끝단부에 체결되어 어댑터플러그의 일단부에 체결되는 어댑터니플의 내측일부에는 스프링라이너의 커버가 삽입되는 커버삽입부를 형성하여 어댑터플러그에 어댑터니플을 체결할 때 어댑터플러그의 끝단부와 어댑터플러그의 단턱부사이에 패킹 및 척을 개재하여 견고하게 밀폐되도록 하므로써, 연장케이블의 가스호스를 통해 공급되는 CO2가스가 스프링라이너로 유입되어 누설되거나 역류되는 것을 방지하도록 하는 것을 기술적 과제로 한다.In order to solve the above problems, the present invention is coupled to both ends of the extension cable for the CO2 arc welder to form a protruding step in the inner side of the adapter plug into which the spring liner embedded in the extension cable is inserted, and is fastened to the spring end of the spring liner. The inner part of the adapter nipple which is fastened to one end of the adapter plug forms a cover insertion part into which the cover of the spring liner is inserted, and the packing and the chuck between the end of the adapter plug and the stepped part of the adapter plug when the adapter nipple is fastened to the adapter plug. By making it tightly sealed, the technical problem is to prevent the CO 2 gas supplied through the gas hose of the extension cable from flowing into the spring liner and leaking or flowing back.

상기 기술적 과제를 달성하기 위하여 본 발명은 CO2 아크용접기용 연장케이블의 양단에 각각 결합 설치되며 양측면에 그립커버가 감싸도록 설치되는 어댑터플러그의 일단부내측에는 니플체결부가 형성되고 타단부외측에는 케이블결합부가 형성되며 외부일측에는 가스연결관이 결합되는 호스체결부가 형성되고, 상기 어댑터플러그의 내부에는 스프링과 스프링의 외측을 감싸는 커버로 이루어지며 상기 연장케이블로부터 연결되는 스프링라이너가 삽입 설치되고, 상기 어댑터플러그의 니플체결부에는 일단부중앙에 와이어통공이 형성되며 타단부내측에 스프링라이너의 스프링끝단부에 체결되는 스프링체결부가 형성되고 외주면일측에 숫나사부가 형성되는 어댑터니플이 체결되어 있는 CO2 아크용접기용 연장케이블의 어댑터구조에 있어서, 상기 어댑터니플의 내주면일측에는 상기 스프링라이너의 커버가 삽입되는 커버삽입부가 형성되고, 상기 어댑터플러그의 일단부내측에 형성된 니플체결부의 후방내주면에는 단턱부가 돌출 형성되어, 상기 어댑터니플을 어댑터플러그의 니플체결부에 체결시 어댑터니플의 끝단부와 상기 어댑터플러그의 단턱부사이에 패킹을 개재하여 체결되는 것을 특징으로 하는 것과, 상기 어댑터플러그의 일단부에 체결되는 어댑터니플의 끝단부와 패킹사이에는 링형상의 몸통부전방에 절개부가 형성된 테이퍼부가 일체로 형성된 척이 삽입되어 체결되는 것을 특징으로 한다.In order to achieve the above technical problem, the present invention is coupled to both ends of the extension cable for the CO2 arc welder, the nipple fastening portion is formed on the inner side of one end of the adapter plug which is installed to wrap the grip cover on both sides, and the other end of the cable coupling portion Is formed and a hose connection portion is formed on the outer side is coupled to the gas connection pipe, the inside of the adapter plug is made of a cover surrounding the spring and the outside of the spring and the spring liner connected from the extension cable is inserted and installed, the adapter plug The nipple fastening portion of the CO2 arc welding machine is formed with a wire hole formed at the center of one end, a spring fastening part is formed at the spring end of the spring liner at the other end, and an adapter nipple is formed at the outer circumferential surface. In the adapter structure of the cable, A cover insert portion into which the cover of the spring liner is inserted is formed at one side of the inner peripheral surface of the nipple, and a stepped portion is formed at the rear inner peripheral surface of the nipple fastening portion formed at one end of the adapter plug, and the adapter nipple is fastened to the nipple of the adapter plug. When the part is fastened to the end portion of the adapter nipple and the adapter plug between the stepped through the packing characterized in that the fastening, and the end of the adapter nipple fastened to the end of the adapter plug and the packing between the end It is characterized in that the chuck is formed integrally with the tapered portion formed in the incision portion in front of the body portion is fastened.

도 1은 일반적인 CO2 아크용접기의 접속상태를 나타내는 계통도.1 is a system diagram showing a connection state of a general CO2 arc welder.

도 2는 일반적인 연장케이블의 어댑터를 나타내는 분해사시도.Figure 2 is an exploded perspective view showing an adapter of a typical extension cable.

도 3은 종래기술에 의한 연장케이블의 어댑터구조를 나타내는 단면도.3 is a cross-sectional view showing the adapter structure of the extension cable according to the prior art.

도 4는 본 발명에 의한 연장케이블의 어댑터구조의 요부를 나타내는 단면도.4 is a sectional view showing a main portion of an adapter structure of an extension cable according to the present invention;

도 5a는 본 발명의 다른 실시예를 나타내는 단면도.Figure 5a is a cross-sectional view showing another embodiment of the present invention.

도 5b는 본 발명의 다른 실시예에 사용되는 척을 나타내는 사시도.5B is a perspective view showing a chuck used in another embodiment of the present invention.

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

1 : 어댑터플러그 2 : 케이블결합부 3 : 호스체결부1 Adapter plug 2 Cable connection 3 Hose connection

4 : 니플체결부 5 : 단턱부 6 : 스프링라이너4: nipple fastening part 5: stepped part 6: spring liner

7 : 스프링 8 : 커버 9 : 패킹7: spring 8: cover 9: packing

10 : 척 11 : 몸통부 12 : 테이퍼부10: chuck 11: body portion 12: taper portion

12a : 절개부 13 : 어댑터니플 14 : 와이어통공12a: incision 13: adapter nipple 14: wire through

15 : 숫나사부 16 : 스프링체결부 17 : 커버삽입부15: male thread portion 16: spring fastening portion 17: cover insertion portion

이하, 상기 목적을 달성하기 위하여 본 발명을 도 4와 도 5를 참고하여 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail with reference to FIGS. 4 and 5 to achieve the above object.

도 4는 본 발명에 의한 연장케이블의 어댑터구조의 요부를 나타내는 단면도이며, 도 5a는 본 발명의 다른 실시예를 나타내는 단면도이고, 도 5b는 본 발명의 다른 실시예에 사용되는 척을 나타내는 사시도이다.Figure 4 is a cross-sectional view showing the main part of the adapter structure of the extension cable according to the present invention, Figure 5a is a cross-sectional view showing another embodiment of the present invention, Figure 5b is a perspective view showing a chuck used in another embodiment of the present invention. .

도 4에 도시되어 있는 바와 같이 본 발명에 의한 연장케이블의 어댑터구조에서 CO2 아크용접기용 연장케이블(40)의 양단에 각각 결합 설치되며 양측면에 그립커버(49)가 감싸도록 설치되는 어댑터플러그(1)의 일단부내측에는 니플체결부(4)가 형성되고 타단부외측에는 케이블결합부(2)가 형성되며 외부일측에는 가스연결관 (48)이 결합되는 호스체결부(3)가 형성되고, 상기 어댑터플러그(1)의 내부에는 스프링(7)과 스프링(7)의 외측을 감싸는 커버(8)로 이루어지며 상기 연장케이블(40)로부터 연결되는 스프링라이너(6)가 삽입 설치되고, 상기 어댑터플러그(1)의 니플체결부(4)에는 일단부중앙에 와이어통공(14)이 형성되며 타단부내측에 스프링라이너(6)의 스프링(7)끝단부에 체결되는 스프링체결부(16)가 형성되고 외주면일측에 숫나사부(15)가 형성되는 어댑터니플(13)이 체결되어 있는 구성은 종래의 연장케이블의 어댑터구조와 동일한 것이다.As shown in FIG. 4, in the adapter structure of the extension cable according to the present invention, the adapter plug 1 is installed to be coupled to both ends of the extension cable 40 for the CO2 arc welder, and the grip cover 49 is wrapped on both sides. The nipple fastening portion 4 is formed at one end of the inner side), and a cable coupling part 2 is formed at the outer end of the other end thereof, and a hose fastening part 3 is formed at the outer one side to which the gas connecting pipe 48 is coupled. An adapter plug 1 includes a spring 7 and a cover 8 surrounding the outside of the spring 7, and a spring liner 6 connected from the extension cable 40 is inserted into the adapter plug 1, and the adapter plug is installed. The nipple fastening portion 4 of (1) has a wire through hole 14 formed at the center of one end thereof, and a spring fastening portion 16 fastened to the end of the spring 7 of the spring liner 6 inside the other end thereof. Adapter having a male thread portion 15 formed on one side of the outer 13 is a configuration that is signed is the same as the adapter of a conventional cable extension.

그리고, 본 발명에 의한 연장케이블의 어댑터구조는 도 4에 도시되어 있는 바와 같이 상기 어댑터니플(13)의 내주면일측에는 상기 스프링라이너(6)의 커버(8)가 삽입되는 커버삽입부(17)가 형성되고, 상기 어댑터플러그(1)의 일단부내측에 형성된 니플체결부(4)의 후방내주면에는 단턱부(5)가 돌출 형성되어, 상기 어댑터니플(13)을 어댑터플러그(1)의 니플체결부(4)에 체결시 어댑터니플(13)의 끝단부와 상기 어댑터플러그(1)의 단턱부(5)사이에 패킹(9)을 개재하여 체결되는 것을 특징으로 한다.In addition, the adapter structure of the extension cable according to the present invention, as shown in Figure 4, the cover insertion portion 17 into which the cover 8 of the spring liner 6 is inserted into one side of the inner circumferential surface of the adapter nipple 13. Is formed, and a stepped portion 5 protrudes from the rear inner circumferential surface of the nipple fastening portion 4 formed inside the one end of the adapter plug 1, and the adapter nipple 13 is nipple of the adapter plug 1. When fastening to the fastening portion 4 is characterized in that the fastening via the packing (9) between the end of the adapter nipple 13 and the stepped portion 5 of the adapter plug (1).

이와 같이 구성되어 있는 본 발명에 의한 연장케이블의 어댑터구조의 조립 및 작용관계를 설명하면 다음과 같다.The assembly and operation relationship of the adapter structure of the extension cable according to the present invention configured as described above are as follows.

본 발명에 의한 연장케이블의 어댑터구조에서는 어댑터플러그(1)를 연장케이블의 일단부에 설치할 때 연장케이블로부터 인출되는 스프링라이너(6)를 상기 어댑터플러그(1)의 내부로 관통시킨 후, 스프링라이너(6)의 커버(8)의 끝단부외측면에 합성고무재질으로 된 공지의 밀폐용 패킹(9)을 삽입한 다음 스프링라이너(6)의 스프링(7)끝단부에 어댑터니플(13)을 체결하게 된다. 이 때, 스프링라이너(6)의 스프링(7)끝단부는 상기 어댑터니플(13)의 내측내주면에 형성된 스프링체결부(16)에 체결되며, 스프링라이너(6)의 커버(8)끝단부는 어댑터니플(13)의 외측내주면에 형성된 커버삽입부(17)에 삽입된다.In the adapter structure of the extension cable according to the present invention, when the adapter plug 1 is installed at one end of the extension cable, the spring liner 6 drawn out from the extension cable passes through the inside of the adapter plug 1, and then the spring liner. Insert the well-known sealing packing 9 made of synthetic rubber into the outer side of the end of the cover 8 of (6), and then fasten the adapter nipple 13 to the end of the spring (7) of the spring liner (6). Done. At this time, the spring 7 end of the spring liner 6 is fastened to the spring fastening portion 16 formed on the inner inner circumferential surface of the adapter nipple 13, and the cover 8 end of the spring liner 6 is the adapter nipple. It is inserted into the cover insertion part 17 formed in the outer inner peripheral surface of (13).

이와 같이 스프링라이너(6)가 결합된 어댑터니플(13)를 상기 어댑터플러그 (1)의 니플체결부(4)에 체결하게 되면 어댑터니플(13)의 외측면에 형성된 숫나사부 (15)가 니플체결부(4)에 체결되면서 조여지게 된다. 이 때, 상기 어댑터니플(13)이 체결됨에 따라 스프링라이너(6)의 커버(8)외측에 삽입된 패킹(9)이 어댑터플러그 (1)의 니플체결부(4)후방에 돌출형성된 단턱부(5)에 밀착되면서 어댑터플러그(1)의 내주면과 스프링라이너(6)의 커버(8)외측면사이를 견고하게 밀폐시키게 되므로써, 가스통으로부터 연장케이블(40)에 내장된 가스호스를 통해 어댑터플러그(1)로 유입되는 CO2가스가 스프링라이너(6)의 스프링(7)내부로 유입되어 역류되거나 와이어통공(14)을 통해 외부로 누설되는 것을 방지하게 되는 것이다.When the adapter nipple 13 coupled with the spring liner 6 is fastened to the nipple fastening portion 4 of the adapter plug 1, the male thread portion 15 formed on the outer surface of the adapter nipple 13 is nipple. It is tightened while being fastened to the fastening part (4). At this time, when the adapter nipple 13 is fastened, the packing 9 inserted into the cover 8 of the spring liner 6 outside protrudes from the nipple fastening portion 4 of the adapter plug 1. (5) tightly seals between the inner circumferential surface of the adapter plug (1) and the outer surface of the cover (8) of the spring liner (6), so that the adapter plug through the gas hose built into the extension cable (40) from the gas cylinder (1) is to prevent the CO2 gas flowing into the spring 7 of the spring liner 6 to flow back or leak out through the wire through hole (14).

또한, 본 발명에 의한 연장케이블의 어댑터구조의 다른 실시예로서 도 5a에도시되어 있는 바와 같이 상기 어댑터플러그(1)의 일단부에 체결되는 어댑터니플 (13)의 끝단부와 패킹(9)사이에 도 5b에 도시되어 있는 바와 같이 링형상의 몸통부 (11)전방에 복수의 절개부(12a)가 형성된 테이퍼부(12)가 일체로 형성되어 있는 척(10)을 삽입하여 체결되도록 하므로써, 어댑터플러그(1)에 어댑터니플(13)을 체결함에 따라 상기 척(10)의 몸통부(11)의 끝단부는 상기 패킹(9)에 밀착되어 가압하게 되는 동시에, 척(10)의 테이퍼부(12)는 복수의 절개부(12a)에 의해 탄성적으로 수축되면서 상기 어댑터니플(13)의 커버삽입홈(17)의 내측으로 압입되어 상기 스프링라이너(6)의 커버(8)와 어댑터니플(13)내측간에 틈이 생기지 않게 하므로 더욱 더 견고한 밀폐상태를 유지할 수 있게 된다.In addition, as another embodiment of the adapter structure of the extension cable according to the present invention between the end of the adapter nipple 13 and the packing 9 fastened to one end of the adapter plug 1 as shown in Figure 5a By inserting the chuck 10 in which the tapered part 12 in which the several incision part 12a was formed in front of the ring-shaped trunk part 11 is integrally formed as shown in FIG. As the adapter nipple 13 is fastened to the adapter plug 1, the end portion of the trunk portion 11 of the chuck 10 is pressed against the packing 9, and at the same time, the taper portion of the chuck 10 ( 12 is elastically contracted by the plurality of cutouts 12a and press-fitted into the cover insertion groove 17 of the adapter nipple 13 to cover the cover 8 and the adapter nipple of the spring liner 6 ( 13) It is possible to maintain a more tightly sealed state since there is no gap between the insides. All.

상기와 같이 본 발명에 의한 CO2 아크용접기용 연장케이블의 어댑터구조는 연장케이블의 양단에 결합되어 연장케이블내에 내장된 스프링라이너가 삽입되는 어댑터플러그의 내측에는 단턱부를 돌출 형성하고, 스프링라이너의 스프링끝단부에 체결되어 어댑터플러그의 일단부에 체결되는 어댑터니플의 내측일부에는 스프링라이너의 커버가 삽입되는 커버삽입부를 형성하여 어댑터플러그에 어댑터니플을 체결할 때 어댑터플러그의 끝단부와 어댑터플러그의 단턱부사이에 패킹 및 척을 개재하여 견고하게 밀폐되도록 하므로써, 연장케이블의 가스호스를 통해 공급되는 CO2가스가 스프링라이너로 유입되어 누설되거나 역류되는 것을 방지하여 CO2가스의 누설이나 역류에 의한 공급압력저하로 인해 발생되는 기포 등의 용접결함이 생기지 않도록 하는 동시에 지속적인 CO2가스의 누설로 인한 비용손실을 획기적으로 저감시킬 수 있게 되는 효과가 있는 것이다.As described above, the adapter structure of the extension cable for the CO2 arc welder according to the present invention is coupled to both ends of the extension cable to form a stepped portion protruding inside the adapter plug into which the spring liner embedded in the extension cable is inserted, and the spring end of the spring liner. The inner part of the adapter nipple fastened to the end of the adapter plug is formed on the inner part of the adapter nipple to form a cover insertion part into which the cover of the spring liner is inserted, and the end of the adapter plug and the stepped part of the adapter plug when the adapter nipple is fastened to the adapter plug. In this way, the packing and the chuck are tightly sealed to prevent the CO 2 gas supplied through the gas hose of the extension cable from entering the spring liner and leaking or flowing back, thereby reducing the supply pressure due to leakage or back flow of the CO 2 gas. Copper to prevent welding defects such as bubbles generated To be that the effect of being able to drastically reduce the cost of loss due to leakage of the CO2 gas constant.

Claims (2)

CO2 아크용접기용 연장케이블(40)의 양단에 각각 결합 설치되며 양측면에 그립커버(49)가 감싸도록 설치되는 어댑터플러그(1)의 일단부내측에는 니플체결부(4)가 형성되고 타단부외측에는 케이블결합부(2)가 형성되며 외부일측에는 가스연결관 (48)이 결합되는 호스체결부(3)가 형성되고,Nipple fastening portions 4 are formed inside one end of the adapter plug 1 installed at both ends of the extension cable 40 for the CO2 arc welder, and the grip cover 49 is wrapped on both sides thereof, and the other end is outside the other end. Cable coupling portion (2) is formed and the outer one side is formed with a hose coupling portion (3) to which the gas connection pipe 48 is coupled, 상기 어댑터플러그(1)의 내부에는 스프링(7)과 스프링(7)의 외측을 감싸는 커버(8)로 이루어지며 상기 연장케이블(40)로부터 연결되는 스프링라이너(6)가 삽입 설치되고,Inside the adapter plug (1) is made of a spring (7) and a cover (8) surrounding the outside of the spring (7) and the spring liner (6) connected from the extension cable (40) is inserted and installed, 상기 어댑터플러그(1)의 니플체결부(4)에는 일단부중앙에 와이어통공(14)이 형성되며 타단부내측에 스프링라이너(6)의 스프링(7)끝단부에 체결되는 스프링체결부(16)가 형성되고 외주면일측에 숫나사부(15)가 형성되는 어댑터니플(13)이 체결되어 있는 CO2 아크용접기용 연장케이블의 어댑터구조에 있어서,The nipple fastening portion 4 of the adapter plug 1 has a wire through hole 14 formed at the center of one end thereof, and a spring fastening portion 16 fastened to an end portion of the spring 7 of the spring liner 6 inside the other end thereof. In the adapter structure of the extension cable for the CO2 arc welder, in which the adapter nipple 13 is formed and the male nipple 15 is formed on one side of the outer circumferential surface thereof. 상기 어댑터니플(13)의 내주면일측에는 상기 스프링라이너(6)의 커버(8)가 삽입되는 커버삽입부(17)가 형성되고,On one side of the inner circumferential surface of the adapter nipple 13 is formed a cover insertion portion 17 into which the cover 8 of the spring liner 6 is inserted, 상기 어댑터플러그(1)의 일단부내측에 형성된 니플체결부(4)의 후방내주면에는 단턱부(5)가 돌출 형성되어, 상기 어댑터니플(13)을 어댑터플러그(1)의 니플체결부(4)에 체결시 어댑터니플(13)의 끝단부와 상기 어댑터플러그(1)의 단턱부(5)사이에 패킹(9)을 개재하여 체결되는 것을 특징으로 하는 CO2 아크용접기용 연장케이블의 어댑터구조.A stepped portion 5 protrudes from the rear inner circumferential surface of the nipple fastening portion 4 formed at one end of the adapter plug 1 so that the adapter nipple 13 is connected to the nipple fastening portion 4 of the adapter plug 1. Adapter structure of the extension cable for the CO2 arc welder, characterized in that the coupling between the end of the adapter nipple (13) and the stepped portion (5) of the adapter plug (1) through the packing (9). 제 1항에 있어서, 상기 어댑터플러그(1)의 일단부에 체결되는 어댑터니플 (13)의 끝단부와 패킹(9)사이에는 링형상의 몸통부(11)전방에 절개부(12a)가 형성된 테이퍼부(12)가 일체로 형성된 척(10)이 삽입되어 체결되는 것을 특징으로 하는 CO2 아크용접기용 연장케이블의 어댑터구조.According to claim 1, Between the end of the adapter nipple 13 is fastened to one end of the adapter plug 1 and the incision (12a) formed in front of the ring-shaped body portion 11 is formed Adapter structure of the extension cable for the CO2 arc welder, characterized in that the tapered portion 12 is formed integrally with the chuck 10 is inserted.
KR1020020027525A 2002-05-17 2002-05-17 Adapter structure of extention cable for CO2 arc welder KR20020042604A (en)

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WO2011115317A1 (en) * 2010-03-18 2011-09-22 에스티엑스(대련)조선유한회사 Dual-shield torch nozzle for co2 welding
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KR20180083199A (en) 2017-01-12 2018-07-20 두산중공업 주식회사 Welding Tip With Step Structure, and Welding Machine Having The Same

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