KR102210154B1 - Apparatus for calibration of welding distortion - Google Patents

Apparatus for calibration of welding distortion Download PDF

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KR102210154B1
KR102210154B1 KR1020190122895A KR20190122895A KR102210154B1 KR 102210154 B1 KR102210154 B1 KR 102210154B1 KR 1020190122895 A KR1020190122895 A KR 1020190122895A KR 20190122895 A KR20190122895 A KR 20190122895A KR 102210154 B1 KR102210154 B1 KR 102210154B1
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welding
displacement
heating means
vertical
welding member
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KR1020190122895A
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Korean (ko)
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도영호
김은태
이동주
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한국조선해양 주식회사
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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
    • B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
    • B23K31/003—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to controlling of welding distortion
    • 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
    • B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
    • B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
    • 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
    • B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)

Abstract

The present invention relates to an apparatus for correcting welding distortion, which can minimize welding distortion by changing the position of a heating means in real time in response to the vertical displacement of a welding member when correcting the welding distortion by using the heating means. According to the present invention, the apparatus for correcting welding distortion comprises: a displacement measurement device mounted on the surface of one end of a non-welding surface of a welding member, and vertically moved by vertical displacement when the vertical displacement of the welding member occurs; a vertical movement guide member connected to the displacement measurement device via a gear device, and vertically moved by a rotating operation of the gear device when the displacement measurement device moves vertically; and a heating means which is provided on one side of the vertical movement guide member to be vertically moved in accordance with an operation of the vertical movement guide member, and heats a non-welding surface portion of the welding member. The welding member is divided into a welding surface area and a non-welding surface area around a centroid line, and the non-welding surface portion is positioned in the non-welding surface area.

Description

용접변형 보정장치{Apparatus for calibration of welding distortion}Apparatus for calibration of welding distortion}

본 발명은 용접변형 보정장치에 관한 것으로서, 보다 상세하게는 가열수단을 이용하여 용접변형을 보정함에 있어서, 용접부재의 수직방향 변위량에 대응하여 가열수단의 위치가 실시간 변경되도록 함으로써 용접변형을 최소화할 수 있는 용접변형 보정장치에 관한 것이다.The present invention relates to a welding deformation correction device, and more particularly, in correcting the welding deformation using a heating means, the position of the heating means is changed in real time in response to the amount of displacement in the vertical direction of the welding member, thereby minimizing welding deformation. It relates to a possible welding deformation correction device.

판재의 용접시, 용접시 인가되는 열에 의해 판재가 팽창, 수축을 거쳐 변형되는 현상이 발생된다. 용접 직후에는 용접 부위가 팽창되어 판재(1)가 아랫방향을 향해 휜 상태를 유지하다가(도 1a 참조), 일정 시간이 경과되어 용접 부위가 냉각되면 용접 부위의 수축에 의해 판재(1)는 윗방향을 향해 휘어지는 형태로 변형된다(도 1b 참조). During welding of a plate, a phenomenon in which the plate is deformed through expansion and contraction due to heat applied during welding occurs. Immediately after welding, the welded portion expands and the plate 1 remains bent downward (see Fig. 1a). When the welded portion cools after a certain time elapses, the plate 1 is upwards due to contraction of the welded portion. It is deformed to bend toward the direction (see Fig. 1B).

이러한 용접 변형은 용접 구조물의 기계적 특성을 열화시키는 요인으로 작용한다. 용접 변형을 방지하기 위해, 판재에 물리적 힘을 인가하여 용접 변형을 보정하거나(한국등록특허공보 제961386호 참조) 용접 부위의 반대편에 열을 가하여 용접 변형을 억제하는 방법이 실시되고 있다. This welding deformation acts as a factor deteriorating the mechanical properties of the welded structure. In order to prevent welding deformation, a method of correcting welding deformation by applying a physical force to a plate material (refer to Korean Patent Publication No. 961386) or applying heat to the opposite side of the welding site to suppress welding deformation has been implemented.

용접 부위의 반대편에 열을 가하여 용접 변형을 억제하는 방법은, 구체적으로 고주파 유도가열기를 이용한다. 즉, 용접 부위의 반대편 일 지점에 고주파 유도가열기를 통해 열을 가함으로써 용접열에 의해 판재가 변형되는 것을 방지하는 방법이다. A method of suppressing welding deformation by applying heat to the other side of the welding site, specifically, uses a high-frequency induction heater. That is, it is a method of preventing the plate material from being deformed by the welding heat by applying heat to a point opposite to the welding portion through a high-frequency induction heater.

그러나, 현재 제안된 방법의 경우 용접 변형과 고주파 유도가열기의 가열위치, 용접 변형과 고주파 유도가열기의 출력에 대해서 명확한 기준이 없는 실정이다. 따라서, 고주파 유도가열기를 이용하여 용접 변형에 대응에 있어서 재현성을 기대하기에 어려움이 있다.However, in the case of the currently proposed method, there is no clear standard for the welding deformation, the heating position of the high frequency induction heater, the welding deformation and the output of the high frequency induction heater. Therefore, it is difficult to expect reproducibility in coping with welding deformation using a high-frequency induction heater.

한국등록특허공보 제961386호Korean Registered Patent Publication No. 961386

본 발명은 상기와 같은 문제점을 해결하기 위해 안출한 것으로서, 가열수단을 이용하여 용접변형을 보정함에 있어서, 용접부재의 수직방향 변위량에 대응하여 가열수단의 위치가 실시간 변경되도록 함으로써 용접변형을 최소화할 수 있는 용접변형 보정장치를 제공하는데 그 목적이 있다.The present invention was conceived to solve the above problems, and in correcting the welding deformation using the heating means, the position of the heating means is changed in real time in response to the vertical displacement of the welding member, thereby minimizing the welding deformation. It is an object of the present invention to provide a welding distortion correction device that can be used.

상기의 목적을 달성하기 위한 본 발명에 따른 용접변형 보정장치는 용접부재의 비용접면의 일단면 상에 거치되며, 용접부재의 수직방향 변위시 수직방향 변위량만큼 상하이동되는 변위량 측정장치; 기어장치를 매개로 변위량 측정장치와 연결되며, 변위량 측정장치의 상하이동시 기어장치의 회전동작에 의해 상하이동되는 상하이동 가이드부재; 및 상하이동 가이드부재의 일측에 구비되어 상하이동 가이드부재의 동작에 따라 상하이동되며, 용접부재의 비용접면 부위를 가열하는 가열수단; 용접부재는 도심선(centroid line)을 중심으로 용접면 영역과 비용접면 영역으로 구분되며, 비용접면 부위는 비용접면 영역에 위치하는 것을 특징으로 한다. The welding deformation correction apparatus according to the present invention for achieving the above object comprises: a displacement measuring device which is mounted on one end of a non-contact surface of a welding member and moves up and down by a vertical displacement amount when the welding member is displaced in the vertical direction; An upward movement guide member connected to the displacement amount measuring device via the gear device, and being moved up and down by the rotational motion of the gear device during the upward movement of the displacement amount measuring device; And a heating means provided on one side of the upward movement guide member, the upward movement according to the operation of the upward movement guide member, and heating a non-contact portion of the welding member. The welding member is divided into a welding surface area and a non-contact area, centering on a centroid line, and the non-contact area is located in a non-contact area.

용접부재의 수직방향 변위시, 용접부재의 수직방향 변위량만큼 변위량 측정장치가 상하이동되며, 변위량 측정장치의 상하이동에 따라 변위량 측정장치에 맞물린 기어장치가 회전되며, 기어장치에 회전에 의해 상하이동 가이드부재 및 가열수단의 상하이동이 진행된다. When the welding member is displaced in the vertical direction, the displacement measuring device moves up and down according to the vertical displacement of the welding member, and the gear device meshed with the displacement measuring device rotates according to the vertical movement of the displacement measuring device. The guide member and the heating means are moved up and down.

기어장치와 맞물리는 변위량 측정장치 및 상하이동 가이드부재의 일면 상에는 랙(rack)이 구비될 수 있다. 또한, 상기 가열수단은 고주파 유도가열기로 구성할 수 있다. 이와 함께, 용접부재의 용접면 부위와 비용접면 부위는 서로 마주보는 위치이다.A rack may be provided on one surface of the displacement amount measuring device meshed with the gear device and the vertical movement guide member. In addition, the heating means may be composed of a high-frequency induction heater. In addition, the welding surface portion and the non-contact portion of the welding member are positions facing each other.

본 발명에 따른 용접변형 보정장치는 다음과 같은 효과가 있다. The welding deformation correction apparatus according to the present invention has the following effects.

용접면 팽창현상에 의한 용접부재 변형에 대응하여, 비용접면 부위에 가열수단을 통해 열을 가함과 함께 용접부재의 수직방향 변위량에 실시간 대응하여 가열수단의 가열위치를 변동시킴으로써 용접부재의 변형을 최소화할 수 있게 된다.In response to the deformation of the welding member due to the expansion of the welding surface, heat is applied to the non-contact area through the heating means, and the heating position of the heating means is changed in real time in response to the vertical displacement of the welding member, thereby minimizing the deformation of the welding member. You can do it.

도 1a 및 도 1b는 용접에 의해 용접부재가 변형되는 것을 나타낸 참고도.
도 2는 본 발명의 일 실시예에 따른 용접변형 보정장치의 사시도.
도 3a 및 도 3b는 용접부재의 팽창 또는 수축에 따른 가열수단의 상하이동 동작을 설명하기 위한 참고도.
도 4는 본 발명의 일 실시예에 따른 용접변형 보정장치의 동작에 따라 용접변형이 방지되는 원리를 설명하기 위한 참고도.1A and 1B are reference views showing that the welding member is deformed by welding.
2 is a perspective view of a welding deformation correction device according to an embodiment of the present invention.
3A and 3B are reference diagrams for explaining the vertical movement of the heating means according to the expansion or contraction of the welding member.
4 is a reference diagram for explaining a principle in which welding deformation is prevented according to the operation of the welding deformation correction device according to an embodiment of the present invention.

본 발명은 용접부재가 용접과정에서 변형되는 것을 최소화시킬 수 있는 용접변형 보정장치를 제시한다. The present invention provides a welding deformation correction apparatus capable of minimizing deformation of a welding member during a welding process.

일정 길이를 갖는 용접부재를 대상으로 용접부재의 길이 방향으로 용접을 진행하면 해당 용접부위가 팽창하게 된다. 예를 들어, 직사각형 형태의 용접부재를 대상으로 용접부재의 일면을 따라 용접을 진행하면 해당 용접부재의 일면 즉, 용접면은 팽창되어 볼록한 형태로 변형된다. 용접면 부위가 팽창되어 볼록한 형태로 변형되는 반면, 용접부재 내부의 물질이동에 의해 용접면을 마주보는 비용접면 부위는 수축되는 변형이 발생된다. When welding is performed in the longitudinal direction of the welding member for a welding member having a certain length, the corresponding welding part expands. For example, when welding is performed along one surface of the welding member for a rectangular welding member, one surface of the welding member, that is, the welding surface is expanded and deformed into a convex shape. While the welding surface area is expanded and deformed into a convex shape, the non-contact area facing the welding surface is contracted due to material movement inside the welding member.

용접면 부위에 열이 인가되어 물질이동에 의해 팽창되는 현상을 억제시키기 위해, 용접면을 마주보는 비용접면 부위에 마찬가지로 열을 인가하는 방법을 고려할 수 있다. 용접면과 마찬가지로 용접면을 마주보는 비용접면 부위에 열이 인가되면 비용접면 부위에서도 팽창을 위한 물질이동 현상이 발생되며, 이와 같이 용접면과 비용접면 모두에 팽창을 위한 물질이동이 발생되면 두 힘은 서로 반대방향으로 작용함에 따라, 용접면의 팽창 변형 현상과 비용접면의 팽창 변형 현상이 상쇄된다. In order to suppress the phenomenon that heat is applied to the welding surface and expand due to material movement, a method of applying heat to the non-contact surface facing the welding surface can be considered. As with the welding surface, when heat is applied to the non-contact area facing the welding surface, the material movement phenomenon for expansion occurs in the non-contact area, and when material movement for expansion occurs on both the welding surface and the non-contact surface, two forces As are acting in opposite directions, the expansion and deformation of the welding surface and the expansion and deformation of the non-contact surface are canceled out.

용접면의 팽창 변형 현상과 비용접면의 팽창 변형 현상이 상쇄됨으로 인해, 용접면 부위와 비용접면 부위 각각은 팽창되지 않고 최초의 용접부재 상태를 유지할 수 있게 된다. Since the expansion and deformation of the welding surface and the expansion and deformation of the non-contact surface are canceled out, each of the welding surface and the non-contacting surface does not expand, and the state of the first welding member can be maintained.

본 발명은 용접면의 팽창 변형 현상과 비용접면의 팽창 변형 현상을 상쇄시켜 용접부재의 용접변형을 최소화시키는 기술을 제시한다. 용접에 의해 용접면에 열이 인가되는 상태에서 용접면을 마주보는 비용접면 부위에도 열을 인가함으로써 용접면의 팽창 변형을 억제시킨다. 가열수단을 통해 비용접면 부위에 열을 인가함으로써 비용접면의 팽창 변형 현상을 유도하여 용접면의 팽창 변형을 상쇄시킬 수 있다. The present invention proposes a technique for minimizing the welding deformation of a welding member by canceling the expansion and deformation of the welding surface and the expansion and deformation of the non-contact surface. In a state where heat is applied to the welding surface by welding, the expansion and deformation of the welding surface is suppressed by applying heat to a non-contact area facing the welding surface. By applying heat to the non-contact area through the heating means, expansion and deformation of the non-contact surface may be induced, thereby canceling the expansion and deformation of the welding surface.

한편, 가열수단을 통해 비용접면 부위에 열을 인가함에 있어서, 용접부재의 용접변형을 최소화하기 위해서는 가열수단에 의해 열이 가해지는 위치 즉, 가열위치가 제어될 필요가 있다. 가열위치가 비용접면에 가까워질수록 비용접면 부위의 팽창 변형 현상이 강해지며, 비용접면으로부터 멀어질수록 비용접면 부위의 팽창 변형 현상이 약해진다. 따라서, 가열위치가 최적화되지 못하면 용접면의 팽창 변형 현상이 강해지거나 비용접면 부위의 팽창 변형 현상이 강해질 수 있다. On the other hand, in applying heat to the non-contact area through the heating means, in order to minimize the welding deformation of the welding member, the position where heat is applied by the heating means, that is, the heating position, needs to be controlled. The closer the heating position is to the cost interface, the stronger the expansion and deformation of the non-contact area becomes, and the further away from the non-contact, the weaker the expansion and deformation of the non-contact area. Therefore, if the heating position is not optimized, the expansion and deformation of the welding surface may become stronger or the expansion and deformation of the non-contact surface may become stronger.

본 발명은 가열위치를 최적화시키기 위해, 용접부재의 변위량과 가열위치를 연동시키는 기술을 제시한다. 즉, 용접부재가 변형되면 해당 변위량에 대응되도록 가열위치를 변동시키는 기술을 제시한다. 용접부재의 변위량에 대응되도록 가열위치를 변동시켜 열을 인가하게 되면, 용접부재의 변위량만큼 가열위치를 이동시켜 가열할 수 있음에 따라 비용접면 부위의 팽창 변형 강도의 정확성을 기할 수 있다. The present invention proposes a technique of interlocking the displacement amount of the welding member and the heating position in order to optimize the heating position. That is, when the welding member is deformed, a technique of changing the heating position to correspond to the amount of displacement is proposed. If heat is applied by changing the heating position to correspond to the displacement amount of the welding member, the heating position can be moved and heated by the displacement amount of the welding member, so that the accuracy of the expansion and deformation strength of the non-contact area can be achieved.

용접부재의 변위량에 무관하게 가열위치를 고정시키거나, 용접부재의 변위량보다 과도하게 가열위치를 이동시키면, 용접면의 팽창 변형 현상이 강해지거나 비용접면 부위의 팽창 변형 현상이 강해져 용접면의 팽창 변형 현상과 비용접면의 팽창 변형 현상을 상쇄시킬 수 없다. 반면, 용접부재의 변위량에 대응되도록 가열위치를 변동시키면, 용접면의 팽창 변형 현상과 비용접면의 팽창 변형 현상이 서로 상쇄되도록 하는 것에 근접한 결과를 얻을 수 있다. If the heating position is fixed regardless of the displacement amount of the welding member, or if the heating position is moved excessively than the displacement amount of the welding member, the expansion and deformation of the welding surface becomes stronger or the expansion and deformation of the non-contact surface becomes stronger and the expansion and deformation of the welding surface. The phenomenon and the expansion and deformation of the cost interface cannot be offset. On the other hand, when the heating position is changed to correspond to the displacement amount of the welding member, a result close to that the expansion and deformation of the welding surface and the expansion and deformation of the non-contact surface cancel each other can be obtained.

본 발명은 용접부재의 변위량에 대응되도록 가열위치를 변동시키는 방법으로, 용접부재의 변위 즉, 용접부재의 팽창 또는 수축으로 인한 수직방향으로의 높이 변화시 해당 변위량만큼 가열위치가 상하이동되도록 하는 기술을 제시한다. 예를 들어, 용접부재가 팽창되어 수직높이가 상승되면 상승된 수직높이 만큼 가열수단의 위치 또한 상승시키며, 용접부재가 수축되어 수직높이가 감소되면 상승된 수직높이 만큼 가열수단의 위치 또한 하강시킨다. The present invention is a method of varying the heating position so as to correspond to the displacement amount of the welding member, and is a technology that moves the heating position up and down by the amount of displacement when the welding member is displaced, that is, the height in the vertical direction due to expansion or contraction of the welding member Present. For example, when the welding member is expanded and the vertical height is increased, the position of the heating means is also raised by the increased vertical height, and when the welding member is contracted and the vertical height is decreased, the position of the heating means is also lowered by the raised vertical height.

이하, 도면을 참조하여 본 발명의 일 실시예에 따른 용접변형 보정장치를 상세히 설명하기로 한다. Hereinafter, a welding deformation correction apparatus according to an embodiment of the present invention will be described in detail with reference to the drawings.

도 2, 도 3a 및 도 3b를 참조하면, 본 발명의 일 실시예에 따른 용접변형 보정장치는 가열수단(210), 상하이동 가이드부재(220), 기어장치(230) 및 변위량 측정장치(240)를 포함하여 이루어진다. 2, 3A, and 3B, the welding deformation correction apparatus according to an embodiment of the present invention includes a heating means 210, a vertical movement guide member 220, a gear device 230, and a displacement measurement device 240. ), including.

상기 가열수단(210)은 용접부재(1)의 특정 위치를 가열하는 장치로서, 용접부재(1)의 특정 위치에 대한 가열을 통해 팽창 현상을 유도하여 용접에 의한 팽창 현상을 상쇄시키는 역할을 한다. The heating means 210 is a device for heating a specific position of the welding member 1, and serves to compensate for the expansion caused by welding by inducing an expansion phenomenon by heating a specific position of the welding member 1 .

용접부재(1)의 일단면을 따라 용접이 진행되면 용접시 가해지는 열에 의해 용접부재(1)의 일단면 부위 즉, 용접면 부위에 물질이동에 의한 팽창 현상이 발생되어 용접부재(1)가 용접면 방향으로 볼록한 형태로 변형된다. When welding proceeds along one end surface of the welding member 1, an expansion phenomenon due to material transfer occurs at one end part of the welding member 1, that is, the welding surface part, due to heat applied during welding. It is deformed into a convex shape in the direction of the welding surface.

이러한 용접면 팽창 현상에 대해, 용접면과 마주보는 용접부재(1)의 비용접면에 열을 가하면 비용접면에서도 물질이동에 의한 팽창 현상이 발생될 수 있으며, 비용접면의 팽창 현상을 유도하면 용접면의 팽창 현상과 상쇄되어 용접이 진행되는 과정에서 용접부재(1)의 변형을 억제시킬 수 있다. For this welding surface expansion phenomenon, if heat is applied to the non-contact surface of the welding member (1) facing the welding surface, expansion may occur due to material transfer at the non-contact surface, and if the expansion of the non-contact surface is induced, the welding surface It is possible to suppress the deformation of the welding member 1 in the process of welding by canceling the expansion phenomenon of.

상기 가열수단(210)은 비용접면의 팽창 현상을 유도하여 용접면의 팽창 현상과 상쇄시켜 용접부재(1)의 변형을 억제시킨다. 이를 위해, 가열수단(210)은 비용접면 부위를 가열한다. 본 발명에서 '비용접면 부위'라 함은 용접면 부위를 마주보는 부위를 일컫는 것으로서, 보다 정확히는 용접부재(1)는 도심선(centroid line)을 중심으로 용접면 영역과 비용접면 영역으로 구분되며, 비용접면 부위는 비용접면 영역에 위치한다. 참고로, 도심(centroid)은 임의의 도형에서 직교 좌표에 대한 단면 일차 모멘트가 0이 되는 점을 의미한다. The heating means 210 inhibits deformation of the welding member 1 by inducing the expansion of the non-contact surface and canceling the expansion of the welding surface. To this end, the heating means 210 heats the non-contact area. In the present invention, the term'non-contact area' refers to a part facing the welding surface area, and more precisely, the welding member 1 is divided into a welding surface area and a non-contact area area around a centroid line, The cost interface area is located in the cost interface area. For reference, centroid refers to a point at which the first moment of cross-section with respect to orthogonal coordinates in an arbitrary figure becomes 0.

한편, 용접이 진행되는 과정에서 용접부재(1)의 변위량은 일정하지 않다. 즉, 용접열에 의해 용접부재(1)가 팽창 또는 수축되는 양은 일정하지 않다. 이에 따라, 용접부재(1)의 수평 방향을 따라 용접이 진행됨에 있어서, 용접부재(1)의 수직방향 높이는 일정하지 않을 수 있다. 용접부재(1)의 수직방향 변위량이 일정하지 않음은 용접부재(1) 내부의 물질특성 또는 용접시 용접특성에 기인할 수 있다. On the other hand, the amount of displacement of the welding member 1 in the process of welding is not constant. That is, the amount by which the welding member 1 expands or contracts by welding heat is not constant. Accordingly, when welding proceeds along the horizontal direction of the welding member 1, the height in the vertical direction of the welding member 1 may not be constant. The variation in the amount of displacement in the vertical direction of the welding member 1 may be due to a material characteristic inside the welding member 1 or a welding characteristic during welding.

용접부재(1)의 수직방향 변위량이 일정하지 않음에도, 가열수단(210)을 통해 동일 위치를 가열한다면 비용접면의 팽창 현상이 용접면의 팽창 현상과 비대칭되어 비용접면 팽창현상과 용접면 팽창현상의 상쇄효과가 훼손될 수 있다. 즉, 용접부재(1)의 수직방향 변위량과 무관하게 가열수단(210)의 가열위치(A)가 일정하다면, 비용접면 팽창현상과 용접면 팽창현상이 상쇄되지 않고 어느 일측이 우세를 보일 수 있다. Even though the amount of displacement in the vertical direction of the welding member 1 is not constant, if the same position is heated through the heating means 210, the expansion of the non-contact surface is asymmetric with the expansion of the welding surface, resulting in a non-contact expansion and expansion of the welding surface. The offset effect of may be undermined. That is, irrespective of the amount of displacement in the vertical direction of the welding member 1, if the heating position (A) of the heating means 210 is constant, the non-contact expansion phenomenon and the welding surface expansion phenomenon are not canceled, and either side may show the dominance. .

본 발명은 이를 방지하기 위해 가열수단(210)의 가열위치(A)를 용접부재(1)의 수직방향 변위량에 연동시킨다. 즉, 용접부재(1)의 수직방향 변위량에 대응하여 가열수단(210)의 가열위치(A)를 변동시켜, 비용접면 팽창현상과 용접면 팽창현상의 상쇄효과를 일정하게 유지시켜 용접부재(1)의 변형을 방지한다. In the present invention, in order to prevent this, the heating position (A) of the heating means 210 is linked to the amount of displacement in the vertical direction of the welding member (1). In other words, by changing the heating position (A) of the heating means 210 in response to the amount of displacement in the vertical direction of the welding member 1, the non-contact surface expansion phenomenon and the canceling effect of the welding surface expansion phenomenon are kept constant, so that the welding member 1 ) To prevent deformation.

용접부재(1)의 수직방향 변위량에 대응하여 가열수단(210)의 가열위치(A)를 변동시키기 위해, 가열수단(210)은 용접부재(1)의 수직방향 변위량에 대응하여 상하이동된다. 구체적으로, 상기 변위량 측정장치(240), 기어장치(230) 및 상하이동 가이드부재(220)에 의해 용접부재(1)의 수직방향 변위량에 대응하여 가열수단(210)이 상하이동될 수 있다. In order to change the heating position A of the heating means 210 in response to the amount of displacement of the welding member 1 in the vertical direction, the heating means 210 is moved up and down in response to the amount of displacement in the vertical direction of the welding member 1. Specifically, the heating means 210 may be moved upside down in response to the amount of displacement in the vertical direction of the welding member 1 by the displacement amount measuring device 240, the gear device 230, and the upright guide member 220.

가열수단(210)은 상하이동 가이드부재(220)의 일측에 고정되며, 상하이동 가이드부재(220)는 기어장치(230)와 맞물려 변위량 측정장치(240)와 연결된다. 또한, 변위량 측정장치(240)는 용접부재(1)의 비용접면 단면 상에 거치된다. 기어장치(230)와 맞물리는 변위량 측정장치(240) 및 상하이동 가이드부재(220)의 일면 상에는 랙(rack)이 구비되며, 기어장치(230)는 복수의 피니언기어로 구성될 수 있다. 변위량 측정장치(240)의 상하이동에 따라 기어장치(230)가 회전되며, 기어장치(230)의 회전에 따라 상하이동 가이드부재(220)의 상하이동이 가능하게 된다. The heating means 210 is fixed to one side of the upward movement guide member 220, and the upward movement guide member 220 meshes with the gear device 230 and is connected to the displacement amount measuring device 240. In addition, the displacement measuring device 240 is mounted on the non-contact surface of the welding member 1. A rack is provided on one surface of the displacement amount measuring device 240 meshing with the gear device 230 and the vertical movement guide member 220, and the gear device 230 may be composed of a plurality of pinion gears. The gear device 230 is rotated according to the vertical movement of the displacement amount measuring device 240, and the vertical movement of the vertical movement guide member 220 is possible according to the rotation of the gear device 230.

이와 같은 구성 하에, 용접부재(1)의 변위가 발생되면 변위량 측정장치(240)가 용접부재(1)의 비용접면 단면 상에 거치됨에 따라, 용접부재(1)의 수직방향 변위량만큼 변위량 측정장치(240) 역시 수직방향으로 이동하게 된다. 예를 들어, 용접부재(1)의 수직방향 변위량이 +5cm이면 변위량 측정장치(240)의 수직높이도 +5cm만큼 이동된다. Under such a configuration, when the displacement of the welding member 1 occurs, the displacement measuring device 240 is mounted on the non-contact surface of the welding member 1, so that the displacement measuring device is equal to the vertical displacement of the welding member 1 (240) is also moved in the vertical direction. For example, if the displacement amount in the vertical direction of the welding member 1 is +5 cm, the vertical height of the displacement measurement device 240 is also moved by +5 cm.

수직방향 변위량만큼 용접부재(1)에 변위가 발생되면, 해당 수직방향 변위량에 대응하여 기어장치(230)가 회전하게 된다. 이어, 기어장치(230)가 회전함에 따라 기어장치(230)에 맞물려 있는 상하이동 가이드부재(220)가 상하이동된다. 궁극적으로, 상하이동 가이드부재(220)가 상하이동됨에 따라 상하이동 가이드부재(220)의 일측에 고정된 가열수단(210) 역시 상하이동하게 된다. When the displacement occurs in the welding member 1 by the amount of displacement in the vertical direction, the gear device 230 rotates in response to the amount of displacement in the vertical direction. Subsequently, as the gear device 230 rotates, the upward movement guide member 220 engaged with the gear device 230 is moved upwardly. Ultimately, as the upward movement guide member 220 moves upward, the heating means 210 fixed to one side of the upward movement guide member 220 also moves upward.

이와 같이, 변위량 측정장치(240), 기어장치(230), 상하이동 가이드부재(220) 및 가열수단(210)이 일체형으로 연결된 구조 하에, 용접부재(1)에 수직방향 변위량이 발생되면 그에 대응하여 변위량 측정장치(240)의 상하이동이 발생되고 기어장치(230)의 회전, 상하이동 가이드부재(220)의 상하이동이 유발되어 최종적으로 가열수단(210)의 상하이동이 가능하게 된다. 이러한 동작원리에 근거하여, 용접부재(1)의 수직방향 변위량에 대응하여 가열수단(210)의 가열위치(A)를 실시간 변동시킬 수 있다. In this way, when the displacement amount measurement device 240, the gear device 230, the upward movement guide member 220, and the heating means 210 are integrally connected, when the amount of vertical displacement occurs in the welding member 1, the corresponding Thus, the vertical movement of the displacement amount measuring device 240 is generated, the rotation of the gear device 230 and the vertical movement of the vertical movement guide member 220 are induced, so that the heating means 210 is finally vertically moved. Based on this operating principle, the heating position A of the heating means 210 can be changed in real time in response to the amount of displacement of the welding member 1 in the vertical direction.

본 발명에 있어서, 변위량 측정장치(240), 기어장치(230), 상하이동 가이드부재(220) 및 가열수단(210)으로 이루어지는 용접변형 보정장치는 일정 지점에 고정되고 용접부재(1)가 이동되거나, 용접부재(1)가 고정되고 용접변형 보정장치가 이동되도록 할 수도 있다. 용접변형 보정장치가 고정되는 경우 용접장치(2) 역시 일정 지점에 고정되어 용접작업을 진행하며, 반대로 용접부재(1)가 고정되는 경우 용접변형 보정장치 및 용접장치(2)가 각각 비용접면 부위, 용접면 부위를 따라 이동된다. In the present invention, the displacement amount measuring device 240, the gear device 230, the vertical movement guide member 220, and the welding deformation correction device consisting of the heating means 210 is fixed at a certain point and the welding member 1 is moved. Alternatively, the welding member 1 may be fixed and the welding deformation correcting device may be moved. When the welding distortion correction device is fixed, the welding device (2) is also fixed at a certain point to perform the welding operation. On the contrary, when the welding member (1) is fixed, the welding distortion correction device and the welding device (2) are each non-contact area. , It is moved along the welding surface area.

한편, 상기 변위량 측정장치(240)는 용접부재(1)의 수직방향 변위량에 따라 상하이동됨과 함께 해당 수직방향 변위량을 측정하고 이를 표시하는 역할을 한다. 작업자는 변위량 측정장치(240)에 표시되는 용접부재(1)의 수직방향 변위량을 통해 용접과정에서의 용접부재(1) 변형 정도를 파악할 수 있으며, 필요에 따라 가열수단(210)의 최초위치를 수정할 수도 있다. 또한, 상기 가열수단(210)은 다양한 장치로 구현될 수 있는데, 일 실시예로 고주파 유도가열기를 이용할 수 있다.On the other hand, the displacement amount measuring device 240 moves up and down according to the vertical displacement amount of the welding member 1 and measures and displays the corresponding vertical displacement amount. The operator can grasp the degree of deformation of the welding member 1 in the welding process through the amount of displacement in the vertical direction of the welding member 1 displayed on the displacement measuring device 240, and if necessary, determine the initial position of the heating means 210 You can also modify it. In addition, the heating means 210 may be implemented with various devices, and a high frequency induction heater may be used as an embodiment.

A : 가열수단의 가열위치
1 : 용접부재 2 : 용접장치
210 : 가열수단 220 : 상하이동 가이드부재
230 : 기어장치 240 : 변위량 측정장치A: Heating position of heating means
1: welding member 2: welding device
210: heating means 220: upward guide member
230: gear device 240: displacement measuring device

Claims (6)

용접부재의 비용접면의 일단면 상에 거치되며, 용접부재의 수직방향 변위시 수직방향 변위량만큼 상하이동되는 변위량 측정장치;
기어장치를 매개로 변위량 측정장치와 연결되며, 변위량 측정장치의 상하이동시 기어장치의 회전동작에 의해 상하이동되는 상하이동 가이드부재; 및
상하이동 가이드부재의 일측에 구비되어 상하이동 가이드부재의 동작에 따라 상하이동되며, 용접부재의 비용접면 부위를 가열하는 가열수단;
용접부재는 도심선(centroid line)을 중심으로 용접면 영역과 비용접면 영역으로 구분되며, 비용접면 부위는 비용접면 영역에 위치하며,
용접부재의 수직방향 변위시,
용접부재의 수직방향 변위량만큼 변위량 측정장치가 상하이동되며, 변위량 측정장치의 상하이동에 따라 변위량 측정장치에 맞물린 기어장치가 회전되며, 기어장치에 회전에 의해 상하이동 가이드부재 및 가열수단의 상하이동이 진행되는 것을 특징으로 하는 용접변형 보정장치.
A displacement measuring device mounted on one end of the non-contact surface of the welding member and moving upwards by the vertical displacement amount when the welding member is displaced in the vertical direction;
A vertical movement guide member connected to the displacement amount measuring device via the gear device, and being moved up and down by the rotational motion of the gear device during the vertical movement of the displacement amount measuring device; And
A heating means provided on one side of the upward movement guide member and upward movement according to the operation of the upward movement guide member, and heating a non-contact portion of the welding member;
The welding member is divided into a welding surface area and a non-contact area around the centroid line, and the non-contact area is located in the non-contact area,
When the welding member is displaced in the vertical direction,
The displacement measurement device moves up and down as much as the displacement amount in the vertical direction of the welding member, and the gear device meshed with the displacement measurement device rotates according to the up and down movement of the displacement measurement device, and the vertical movement of the guide member and the heating means is moved by rotation of the gear device. Welding deformation correction device, characterized in that in progress.
 삭제delete 제 1 항에 있어서, 기어장치와 맞물리는 변위량 측정장치 및 상하이동 가이드부재의 일면 상에는 랙(rack)이 구비되는 것을 특징으로 하는 용접변형 보정장치.
The welding deformation correction apparatus according to claim 1, wherein a rack is provided on one surface of the displacement amount measuring device and the vertical movement guide member meshing with the gear device.
 제 1 항에 있어서, 상기 가열수단은 고주파 유도가열기인 것을 특징으로 하는 용접변형 보정장치.
The welding deformation correction apparatus according to claim 1, wherein the heating means is a high-frequency induction heater.
 제 1 항에 있어서, 용접부재의 용접면 부위와 비용접면 부위는 서로 마주보는 것을 특징으로 하는 용접변형 보정장치.
The apparatus of claim 1, wherein the welding surface portion and the non-contact surface portion of the welding member face each other.
 제 1 항에 있어서, 상기 변위량 측정장치는 용접부재의 수직방향 변위량을 측정하는 것을 특징으로 하는 용접변형 보정장치. The welding deformation correction apparatus according to claim 1, wherein the displacement amount measuring device measures a vertical displacement amount of the welding member.
KR1020190122895A 2019-10-04 2019-10-04 Apparatus for calibration of welding distortion KR102210154B1 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR0185610B1 (en) * 1995-07-31 1999-04-01 경주현 Method and apparatus for fillet -welding of built-up rolled steel material for preventing heat distortion
KR20000040241A (en) * 1998-12-17 2000-07-05 신현준 Method for welding to prevent change of welding plate and device for welding used to perform welding method
KR100961386B1 (en) 2009-11-27 2010-06-07 유전공업(주) Reverse-deformation jig device for weld deformation modification

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR0185610B1 (en) * 1995-07-31 1999-04-01 경주현 Method and apparatus for fillet -welding of built-up rolled steel material for preventing heat distortion
KR20000040241A (en) * 1998-12-17 2000-07-05 신현준 Method for welding to prevent change of welding plate and device for welding used to perform welding method
KR100961386B1 (en) 2009-11-27 2010-06-07 유전공업(주) Reverse-deformation jig device for weld deformation modification

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