KR20090014794A - Truss girder welding method and welding equipment of deck plate - Google Patents

Truss girder welding method and welding equipment of deck plate Download PDF

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KR20090014794A
KR20090014794A KR1020070079034A KR20070079034A KR20090014794A KR 20090014794 A KR20090014794 A KR 20090014794A KR 1020070079034 A KR1020070079034 A KR 1020070079034A KR 20070079034 A KR20070079034 A KR 20070079034A KR 20090014794 A KR20090014794 A KR 20090014794A
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lower electrode
electrode
truss girder
fixed
welding
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KR1020070079034A
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Korean (ko)
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KR100923844B1 (en
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김기술
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김기술
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/02—Carriages for supporting the welding or cutting element
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
    • E04B5/36—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor
    • E04B5/38—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor with slab-shaped form units acting simultaneously as reinforcement; Form slabs with reinforcements extending laterally outside the element
    • E04B5/40—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor with slab-shaped form units acting simultaneously as reinforcement; Form slabs with reinforcements extending laterally outside the element with metal form-slabs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/02—Iron or ferrous alloys

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  • Physics & Mathematics (AREA)
  • Architecture (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Engineering (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)
  • Arc Welding In General (AREA)

Abstract

A welding method of a truss girder in a deck plate and a welding device therefor are provided to reduce the unit cast of production and to remove fail factors. In a welding method of a truss girder in a deck plate, a bottom electrode fixed on a holder(6) is arranged on the bottom of an upper electrode(3) which is fixed to a lifting block. A base plate(20) and the truss girder(30) are passed through the upper electrode and bottom electrode and welded by the electrodes. The bottom electrode of a thin film type is fixed on the holder removably. The bottom electrode is inserted into a reentrant groove formed on the base plate and welded.

Description

데크플레이트의 트러스 거더 용접방법 및 용접장치{Truss girder welding method and welding equipment of deck plate}Truss girder welding method and welding equipment of deck plate

본 발명은 트러스 구조를 갖는 데크 플레이트(deck plate)에 있어서, 상부철근과 하부철근에 의해 연결되는 트러스 거더(truss girder)를 바닥판에 용접하여 고정하는 용접방법 및 용접장치에 관한 것이다.The present invention relates to a welding method and a welding apparatus for welding and fixing a truss girder (truss girder) connected by an upper reinforcement and a lower reinforcement in a deck plate having a truss structure.

일반적으로 데크 플레이트는, 트러스형상의 래티스재를 대향되게 배치하여 "八"자형을 이루게 하고, 이 래티스에 상부철근과 하부철근을 용접하여 고정한다.Generally, the deck plate arrange | positions a truss-shaped lattice material so that it may form "8" shape, and fixes the upper reinforcement and the lower reinforcement to this lattice by welding.

이 래티스재의 하단측에는 외측으로 향하는 폿트가 절곡 형성되어있다.Pots facing outward are bent at the lower end side of the lattice material.

바닥판은 트러스 거더가 배치되는 기판과, 이 기판의 길이방향으로 절곡형성되는 다수의 돌기로 구성되어 있다.The bottom plate is composed of a substrate on which the truss girder is arranged and a plurality of projections bent in the longitudinal direction of the substrate.

이와 같이 바닥판에 형성된 복수의 돌기에 상기 래티스재의 폿트를 용접고정하여서 되는 것이다.The pot of the lattice material is welded and fixed to the plurality of protrusions formed on the bottom plate in this way.

이와 같이 구성된 데크 플레이트는, 구조물 축조시 거푸집 대용으로 사용되어, 콘크리트를 타설한 후, 상기 데크 플레이트를 제거하지 않고, 벽체로 이용하는 것이다.The deck plate configured as described above is used as a substitute for formwork when constructing a structure, and is used as a wall without removing the deck plate after pouring concrete.

이러한 데크 플레이트를 제조할 때, 박판의 바닥판(보통 0.5mm 두께의 것이 사용된다)을 사용하여 상기 래티스재를 용접하여 고정하게 되는데, 바닥판과의 용접부에 구멍이 나거나 미세한 균열이 발생하여 이 부분으로 콘크리트가 누수되는 현상이 발생하게 되는 것이다.When manufacturing such a deck plate, the lattice material is welded and fixed by using a thin bottom plate (usually 0.5 mm thick), and a hole or a minute crack is generated in the weld with the bottom plate. Part of the concrete leakage will occur.

이러한 용접시 발생되는 구멍이나 균열의 발생을 억제하기 위하여 다양한 방법이 제안되어 왔다.Various methods have been proposed to suppress the occurrence of holes or cracks generated during welding.

즉, 첨부도면 도 1 에 도시된 바와 같이, That is, as shown in the accompanying drawings, Figure 1,

바닥판(100)은 트러스 거더(truss girder)(101)가 배치되는 기판(111), 이 기판(11)의 길이방향을 따라 복수의 접합돌기(115)를 구성하며, 이 접합돌기(115)에 트러스 거더(101)의 폿트(102)를 용접하여 고정하여서 된 데크 플레이트가 제안되어 사용되고 있었다.(실용신안등록 제20-0368262호)The bottom plate 100 constitutes a substrate 111 on which a truss girder 101 is disposed, and a plurality of bonding protrusions 115 along the longitudinal direction of the substrate 11, and the bonding protrusion 115. The deck plate which welded and fixed the pot 102 of the truss girder 101 was proposed and used. (Utility model registration 20-0368262)

상기한 종래의 데크 플레이트는, 바닥판(100)을 절첩하여 접합돌기(115)를 구성하고, 이 절첩부에 의해 한층 두터워진 접합돌기(115)에 트러스 거더(101)의 폿트(102)를 용접하도록 된 것이다.In the conventional deck plate described above, the bottom plate 100 is folded to form a joining protrusion 115, and the pot 102 of the truss girder 101 is attached to the joining protrusion 115 thickened by the folded portion. It is intended to be welded.

상기한 데크 플레이트는 접합돌기(115)의 단면적을 넓혀 용접함으로써, 용접할 때의 압력으로 구멍이 뚫리거나 균열이 발생하는 현상을 극복할 수 있으나, 바닥판(100)과 폿트(102)와의 사이에 공극(t)이 발생한다.The deck plate can overcome the phenomenon that holes or cracks are generated by the pressure at the time of welding by widening the cross-sectional area of the joining protrusion 115, but between the bottom plate 100 and the pot 102. Voids (t) are generated in the.

하부전극과 폿트(102)사이에 발생된 공극(t)은 용접할 때 정확하게 용접이 이루어지지 않는 용접불량의 원인이 되는 것이다.The gap t generated between the lower electrode and the pot 102 is a cause of poor welding, in which welding is not performed correctly.

또한, 바닥판(100)에 형성된 접합돌기(115)는 이중으로 겹쳐지는 방식으로 제작되므로, 바닥판(100) 소재의 폭이 커지게 되어 원가를 상승시키는 요인이 된다. In addition, since the bonding protrusions 115 formed on the bottom plate 100 are manufactured in a manner of overlapping double, the width of the material of the bottom plate 100 becomes large, which increases the cost.

상기한 접합돌기(115)의 확장수단은 도2 및 도3에 나타난 또 다른 수단으로 이루어질 수 있었으며, 이들 역시 용접할 부분과 하부전극 사이에 공극이 발생하게됨을 면할 수 없었다.The expansion means of the bonding protrusion 115 could be made by the other means shown in Figs. 2 and 3, and these also could not be avoided that the gap is generated between the portion to be welded and the lower electrode.

더욱이, 상기한 데크 플레이트는, 트러스 거더(101)와 바닥판(100)을 용접하기 위한 용접방식이 상부전극(120)과, 이 상부전극(120)의 대향되는 하부지점에 하부전극(121)을 부설하여서 된 용접장치가 사용되고 있었다.In addition, the deck plate, the welding method for welding the truss girder 101 and the bottom plate 100 is the upper electrode 120, and the lower electrode 121 at the lower point opposite to the upper electrode 120. The welding device which was installed by using this was used.

상기한 종래의 상부전극과 하부전극의 소재는 고가의 베릴륨동으로 제작되어 사용되는 것으로, 하부전극 전체를 베릴륨동으로 제작하여야 하며, 이 상부와 하부의 전극은 소모품으로 일정횟수로 용접을 반복하게 되면, 표면이 산화되어 새로운 전극으로 교체하여야 하는 것이다.The materials of the conventional upper electrode and the lower electrode are made of expensive copper beryllium, and the entire lower electrode should be made of copper beryllium, and the upper and lower electrodes are consumables to be repeatedly welded a predetermined number of times. If so, the surface is oxidized and must be replaced with a new electrode.

따라서, 종래의 용접장치는 고가의 베릴륨동으로 제작된 하부전극을 일정한 주기마다 교체하여야 하는 비경제적인 문제점이 대두 되었다.Therefore, the conventional welding apparatus has become an uneconomical problem to replace the lower electrode made of expensive copper beryllium at regular intervals.

본 발명은 상기한 문제점 즉, 긴밀한 용접상태를 유지할 수 있도록 하며, 용접부위에 과전압에 의한 균열이나 구멍의 발생요인을 제거하고, 고가의 베릴륨동재의 전극을 비교적 저가로 공급할 수 있도록 하는 방법을 제공함을 목적으로 한다. The present invention provides a method for maintaining the above-mentioned problems, that is, maintaining a tight welding state, eliminating the occurrence of cracks and holes caused by overvoltage on the welded portion, and supplying an expensive beryllium copper electrode at a relatively low cost. The purpose.

상기한 목적을 달성하기 위한 본 발명은, 트러스트 거더를 용접하는 베릴륨동재로 성형되는 하부전극의 폭을 용접에 필요한 최소한의 두께로 제한하여 형성하고, 이 하부전극을 고정베이스에 착탈 가능하도록 구성함으로써 상기한 목적을 해결하고자 한다. The present invention for achieving the above object is formed by limiting the width of the lower electrode formed of a beryllium copper material for welding the thrust girder to a minimum thickness required for welding, and by configuring the lower electrode detachable to the fixed base The above object is to be solved.

또한, 하부전극과 트러스 거더의 용접부와 바닥판의 용접부를 긴밀하게 밀착한 상태에서 용접이 이루어지도록 함으로써 용접불량이 방생치 않도록 하였다.In addition, the welding is performed in close contact with the welded portion of the lower electrode and the truss girder and the welded portion of the bottom plate to prevent welding defects from occurring.

본 발명의 용접장치는 양호한 용접상태를 얻을 수 있을 뿐만 아니라, 용접불량을 극소화하여 제품의 품질을 향상시킬 수 있고, 용접할 때 사용되는 고가의 전극을 최소한의 크기로 제작하여 사용함으로써 생산단가를 줄일 수 있는 것이다.The welding apparatus of the present invention not only obtains a good welding state, but also minimizes welding defects and improves the quality of products. It can be reduced.

이하에서 본 발명의 용접장치를 첨부도면에 의거 상세히 설명한다.Hereinafter, the welding apparatus of the present invention will be described in detail with reference to the accompanying drawings.

첨부도면 도 4는 본 발명의 용접장치를 나타낸 정면도이며, 도 5는 본 발명의 주요부를 일부 확대하여 나타낸 일부확대도이고, 도 6은 주요부분 확대도이며, 도 7은 본 발명의 주요부인 홀더와 하부전극을 나타낸 사시도이다.4 is a front view showing the welding apparatus of the present invention, Figure 5 is a partially enlarged view showing a part of the main part of the present invention, Figure 6 is an enlarged view of the main part, Figure 7 is a holder of the main part of the present invention And a perspective view of the lower electrode.

파형으로 절곡된 래티스재(31)를 "八"자형으로 배설하고, 상부 꼭지점과 하부에 상부철근과 하부철근을 용접하여 고정하여 트러스 거더(30)를 형성한다.The lattice material 31 bent in a wave form is excreted in the shape of "八", and the upper and lower reinforcing bars are welded and fixed to the upper vertex and the lower part to form the truss girder 30.

상기 래티스재(31)의 일단을 외향으로 절곡하여 폿트(32)를 형성하며, One end of the lattice material 31 is bent outward to form a pot 32,

바닥판(20)에는 소폭의 접합돌기(21)를 돌출형성하되, 이 접합돌기(21)는 상기 트러스 거더(30)를 이루는 두 개의 래티스재(31) 양 단부에 형성된 두 개의 폿트(32) 간격에 따라 두 개의 접합돌기(21)가 한쌍으로 형성된다.The bottom plate 20 is projected to form a small junction projection 21, the junction projection 21 is two pot 32 formed on both ends of the two lattice material 31 forming the truss girder 30 Two bonding protrusions 21 are formed in pairs according to the spacing.

이와 같이 구성된 트러스 거더(30)를 바닥판(20)에 용접하여 고정하게 되는데, The truss girder 30 configured as described above is fixed by welding to the bottom plate 20.

본 발명은 상기한 트러스 거더를 용접고정하는 방법을 제공한다.The present invention provides a method for welding and fixing the truss girder described above.

압축실린더(1)의 피스턴 로드(2)의 말단부에 상부전극(3)이 장착된 승강블록(4) 다수개를 베이스(5)에 설치하되, While installing a plurality of lifting blocks (4) mounted on the base 5 at the distal end of the piston rod (2) of the compression cylinder (1),

상기 두 개를 일조로 하여 승강블록(4)을 베이스(5)에 장착하게 되는데, 이때 두개의 승강블록(4)은 상기 래티스재(31)의 연장부인 양쪽 폿트(32)가 이격 된 길이만큼 떨어지도록 설치된다.The two lifting blocks 4 are mounted on the base 5 as a pair, and the two lifting blocks 4 are formed by the lengths of the two pots 32 extending from the lattice material 31. It is installed to fall.

상기 승강블록(4)에 고정된 상부전극(3)의 하부에 하부전극(7)을 배설하여, 상기 상부전극(3)과 하부전극(7) 사이로 바닥판(20)과 트러스 거더(30)를 이동시켜, 상기 상부전극(3)과 하부전극(7)에 의하여 용접되도록 한다. The lower electrode 7 is disposed under the upper electrode 3 fixed to the elevating block 4 so that the bottom plate 20 and the truss girder 30 are interposed between the upper electrode 3 and the lower electrode 7. To be moved to be welded by the upper electrode 3 and the lower electrode 7.

상기 두개의 승강블록(4)에 고정된 상부전극(3)의 하부에는 홀더(6)를 배치하여 소폭의 두께를 갖는 하부전극(7)을 고정한다.A holder 6 is disposed below the upper electrodes 3 fixed to the two lifting blocks 4 to fix the lower electrodes 7 having a small thickness.

상기 홀더(6)는, 양측에 소폭의 요입부(8)을 형성하고, 이 요입부(8)에 소폭의 두께로 되고, 상면에 만곡부(9)를 형성한 판상의 하부전극(7)을 나사로 고정한다.The holder 6 has a plate-shaped lower electrode 7 having a small concave indentation 8 formed on both sides, a small thickness in the concave indentation 8, and a curved portion 9 formed on the upper surface thereof. Secure with screws.

상기 하부전극(7)의 상면에 형성된 만곡부(9)는, 도 5에 도시된 바와 같이 상기 트러스 거더(30)가 용접되는 바닥판(20)에 돌출형성된 접합돌기(21)의 요입부(22)에 삽입될수 있을 정도의 폭을 가진다.The curved portion 9 formed on the upper surface of the lower electrode 7 has a concave portion 22 of the joining protrusion 21 protruding from the bottom plate 20 to which the truss girder 30 is welded, as shown in FIG. 5. ) Is wide enough to be inserted into

이와 같이 구성된 본 발명의 용접장치는, 바닥판(20)에 형성된 접합돌기(21) 하부의 요입부(22)에 하부전극(7)의 상면 만곡부(9)가 긴밀하게 결합되고, 이후 승강블록(4)이 하강하여 상부전극(3)이 래티스재(31)의 폿트(32)와 밀착되면서 용접, 고정시키는 것이다.In the welding apparatus of the present invention configured as described above, the upper curved portion 9 of the lower electrode 7 is tightly coupled to the recess 22 of the lower portion of the joining protrusion 21 formed on the bottom plate 20, and then the lifting block. (4) is lowered and the upper electrode 3 is welded and fixed while being in close contact with the pot 32 of the lattice material 31.

상기 바닥판(20)에 형성된 접합돌기(21)는 약 3~5mm의 폭으로 구성되는 것이어서, 이 접합돌기(21)의 요입부(22)에 결합되는 하부전극(7)의 폭도 3~5mm의 폭으로 구성되는 것은 당연하며, 이 폭의 크기는 상기 접합돌기(21)의 요입부(22)를 형성하는 폭에 의하여 가변적으로 결정된다.The joint protrusion 21 formed on the bottom plate 20 is configured to have a width of about 3 to 5 mm, so that the width of the lower electrode 7 coupled to the recess 22 of the joint protrusion 21 is 3 to 5 mm. Of course, the width of the width is of course, the size of the width is variably determined by the width forming the recessed portion 22 of the joining projection (21).

이와 같이 상부전극(3)과 하부전극(7)을 이용한 용접작업이 반복적으로 이루어지면, 상기 상부전극(3)과 하부전극(7)은 마모되어 교체를 하여야 한다.As described above, when the welding operation using the upper electrode 3 and the lower electrode 7 is repeatedly performed, the upper electrode 3 and the lower electrode 7 should be worn and replaced.

이때, 하부전극(7)은 홀더(6)에서 고정나사(9)를 풀어 하부전극(7)을 분리하고 새로운 하부전극(7)으로 교체하여 장착하는 것이다.At this time, the lower electrode 7 is to be removed by loosening the fixing screw (9) in the holder (6) to separate the lower electrode (7) and replace with a new lower electrode (7).

본 발명에 있어서, 첨부도면은 하부전극(7)의 상부를 만곡부(9)로 구성한 것을 일례로 도시하였으나, 상기 하부전극(7)의 상면은, 바닥판(20)에 형성된 접합돌기의 형태-예컨데 사각형의 돌기나 삼각형의 돌기 등-에 따라 변형이 가능하다. In the present invention, although the accompanying drawings show that the upper portion of the lower electrode 7 is composed of the curved portion 9 as an example, the upper surface of the lower electrode 7, the shape of the bonding projection formed on the bottom plate 20- For example, it can be modified according to the projection of the rectangle or the projection of the triangle.

도 1은 종래의 트러스 거더를 고정하는 상태를 나타낸 단면도1 is a cross-sectional view showing a state of fixing a conventional truss girder

도 2는 종래의 다른 실시예를 나타낸 단면도Figure 2 is a cross-sectional view showing another conventional embodiment

도 3은 통상적인 데크 플레이트의 사시도3 is a perspective view of a conventional deck plate

도 4는 본 발명의 용접장치를 나타낸 정면도Figure 4 is a front view showing a welding apparatus of the present invention

도 5는 본발명에 의한 용접부의 일부확대도5 is an enlarged view of a part of a welding part according to the present invention;

도 6은 본 발명의 주요부를 나타낸 일부확대단면도6 is a partially enlarged sectional view showing a main part of the present invention.

도 7은 본 발명의 주요부를 나타낸 분해사시도Figure 7 is an exploded perspective view showing the main parts of the present invention

※ 도면의 주요부분에 대한 부호의 설명※ Explanation of code for main part of drawing

1; 압축실린더 2; 피스톤 로드One; Compression cylinder 2; Piston rod

3 ; 상부전극 4; 승강블록3; Upper electrode 4; Elevation Block

5; 베이스 6; 홀더5; Base 6; holder

7; 상부전극 8; 요입부7; Upper electrode 8; Indentation

9; 만곡부 10; 고정나사9; Curved portion 10; Set screw

Claims (5)

승강블록에 고정된 상부전극의 하단에 하부전극을 배설하여, 상기 상부전극과 하부전극 사이로 바닥판과 트레스 거더를 통과시켜, 상기 상부전극과 하부전극에 의하여 용접되도록 한 것에 있어서, In the lower electrode disposed on the lower end of the upper electrode fixed to the lifting block, the bottom plate and the tress girder between the upper electrode and the lower electrode to be welded by the upper electrode and the lower electrode, 상기 승강블록에 고정된 상부전극의 하부에 홀더에 고정되는 하부전극을 설치하되,A lower electrode fixed to the holder is installed below the upper electrode fixed to the lifting block, 상기 홀더에는 바닥판에 형성된 접합돌기의 요입홈에 삽입되는 폭을 가진 박판상의 하부전극을 착탈가능하도록 고정하여,The holder is detachably fixed to a thin plate-shaped lower electrode having a width that is inserted into the recess groove of the bonding protrusion formed on the bottom plate, 상기 바닥판에 형성된 요입홈에 하부전극을 삽입하여 용접하도록 하는 것을 특징으로 하는 서 된 트러스 거더 용접방법.Standing truss girder welding method characterized in that the lower electrode is inserted into the recess groove formed in the bottom plate to weld. 승강블록(4)에 고정된 상부전극(3)의 하단에 하부전극(7)을 배설하여, 상기 상부전극(3)과 하부전극(7) 사이로 바닥판(20)과 트러스 거더(30)를 이동시켜, 상기 상부전극(3)과 하부전극(7)에 의하여 용접되도록 한 것에 있어서, The lower electrode 7 is disposed at the lower end of the upper electrode 3 fixed to the elevating block 4 so that the bottom plate 20 and the truss girder 30 are disposed between the upper electrode 3 and the lower electrode 7. Moved so as to be welded by the upper electrode 3 and the lower electrode 7, 상기 승강블록(4)에 고정된 상부전극(3)의 하부 대향되는 지점에는 고정수단을 구비한 홀더(6)와;A holder 6 having a fixing means at a lower surface of the upper electrode 3 fixed to the elevating block 4; 상기 홀더(6)에는, 상기 바닥판(20)에 형성된 접합돌기(21)의 요입부(22)에 삽입되는 폭을 가진 판상의 하부전극(7)을 착탈 가능하도록 장착한 것을 특징으로 하는 트러스 거더 용접장치.The truss is characterized in that the holder 6 is detachably mounted with a plate-shaped lower electrode 7 having a width to be inserted into the recess 22 of the joining protrusion 21 formed on the bottom plate 20. Girder welding device. 제 2 항에 있어서, The method of claim 2, 상기 하부전극(7)의 상부를 만곡부(9)를 형성한 것을 특징으로 하는 트러스 거더 용접장치.Truss girder welding device, characterized in that the curved portion (9) formed on the upper portion of the lower electrode (7). 제 2 항에 있어서,The method of claim 2, 상기 하부전극(7)의 상부를 삼각형으로 구성한 것을 특징으로 하는 트러스 거더 용접장치.Truss girder welding device, characterized in that the upper portion of the lower electrode (7) consisting of a triangle. 제 1 항에 있어서,The method of claim 1, 상기 홀더(8)는 양측단에 소폭의 요입부(8)를 형성하고, The holder 8 forms a narrow concave inlet portion 8 at both ends, 상기 요입부(8)에는, 판상의 하부전극(7)을 고정나사(9)로 착탈 가능하도록 장착한 것을 특징으로 하는 트러스 거더 용접장치.A truss girder welding device, characterized in that the recessed portion (8) is attached to the plate-shaped lower electrode (7) so as to be detachable with a set screw (9).
KR1020070079034A 2007-08-07 2007-08-07 Truss girder welding method and welding equipment of deck plate KR100923844B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102941293A (en) * 2012-11-28 2013-02-27 无锡威华电焊机制造有限公司 Shaping adjustment mechanism of rebar truss
CN103240518A (en) * 2013-04-22 2013-08-14 南京理工大学 Special single-beat welding machine for steel bar trusses

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100187282B1 (en) * 1996-10-17 1999-04-01 김광호 Condenser type spot welding machine
JP4448982B2 (en) 2004-01-05 2010-04-14 滋 矢口 Deck plate with truss, manufacturing method of deck plate with truss
JP2005336889A (en) * 2004-05-27 2005-12-08 Shigeru Yaguchi Deck plate with truss
JP2006226022A (en) 2005-02-18 2006-08-31 Shigeru Yaguchi Deck plate with truss and method of manufacturing the same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102941293A (en) * 2012-11-28 2013-02-27 无锡威华电焊机制造有限公司 Shaping adjustment mechanism of rebar truss
CN102941293B (en) * 2012-11-28 2014-10-15 无锡威华电焊机制造有限公司 Shaping adjustment mechanism of rebar truss
CN103240518A (en) * 2013-04-22 2013-08-14 南京理工大学 Special single-beat welding machine for steel bar trusses

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