JP2020199530A - Groove structure - Google Patents

Abstract

To provide a groove structure which can efficiently and surely perform welding.SOLUTION: A grooving structure 9 forming a weld groove 90 on the whole circumference of a column member 100 when a first member 1 and a second member 2 forming a column member 100 having a corner part are adjacent to each other so as to mutually weld the first member and the second member includes leakage stop parts 15 for preventing leakage of weld metal between a first weld groove 91 on a first outer surface of the column member 100 and a second weld groove 92 on a second outer surface of the column member 100 adjacent to the first outer surface through the corner part, in which the leakage stop parts 15 are formed into partial shapes on the second member 2 side in the first member 1, and the leakage stop parts 15 are provided on both ends in a longitudinal direction of the first weld groove 91 on the first outer surface.SELECTED DRAWING: Figure 2

Description

The present invention relates to a groove structure.

Conventionally, a technique for forming a rectangular column-shaped column by welding an upper member and a lower member to each other has been known (see, for example, Patent Document 1). In this conventional technique, for example, a groove structure is formed at the lower end of the upper member so that a weld groove is formed over the entire circumference of the column when the upper member and the lower member are adjacent to each other. The upper member and the lower member were welded to each other by welding a weld metal to the above-mentioned weld groove formed by the groove structure.

By the way, in the conventional technique, since the welded metals of the welding grooves at the four corners of the column overlap each other, the welding work may be complicated or the fusion of the welded metals may be defective. ..

Therefore, in order to prevent the weld metals from overlapping at the four corners of the column, the positions corresponding to the four corners of the column in the welding groove are partitioned by using a backing material made of steel or semi-rack, and then the partitioned welding is performed. A technique for welding by welding a weld metal to a groove has been proposed.

Japanese Unexamined Patent Publication No. 9-174237

However, in the conventional technique of welding using a partitioning pad, for example, when the partitioning pad is made of steel, it is necessary to remove the patch by gouging or the like after welding, which is troublesome. There was a possibility. Further, for example, when the partitioning material is made of semi-rack, it is not necessary to remove it by gouging or the like, but unevenness may be formed at the end of the column welded using the material. , It is necessary to grind the unevenness flat with a grinder or the like, which may be troublesome.

The present invention has been made in view of the above facts, and an object of the present invention is to provide a groove structure capable of performing welding efficiently and reliably.

In order to solve the above-mentioned problems and achieve the object, the groove structure according to claim 1 is formed with the first member in order to weld the first member and the second member forming the target member to each other. A groove structure that forms a weld groove between the first member and the second member when the second member is adjacent to each other, and a part of the section of the weld groove and the weld groove. The leak-preventing portion is provided with a leak-preventing portion for preventing the weld metal from leaking from each other with the other part of the section in the above. It is formed in a part of the shape of the second member on the side of the first member.

Further, the groove structure according to claim 2 is the groove structure according to claim 1, wherein the target member has a corner portion, and the welding groove includes the first member and the second member. When the members are adjacent to each other, the leakage prevention portion extends over the entire circumference of the target member, and the leakage prevention portion is adjacent to the welding groove on the first outer surface of the target member and the first outer surface via the corner portion. Prevents the weld metal from leaking between the second outer surface of the target member and the welding groove.

The groove structure according to claim 3 is the groove structure according to claim 2, wherein the first member is provided on one side of the target member with respect to the second member, and the leak prevention portion is provided. , Is formed in a part of the shape of the first member on the side of the second member.

The groove structure according to claim 4 is the groove structure according to claim 2 or 3, wherein the leakage prevention portions are provided at both ends of the first outer surface in the longitudinal direction of the weld groove.

The groove structure according to claim 5 is the groove structure according to any one of claims 2 to 4, wherein the target member has a rectangular pillar shape, and the leakage prevention portions are mutually formed in the target member. It is formed by making each of the shapes on the surface side facing the object the same shape and making each of the shapes on the surface side adjacent to each other in the target member different from each other.

The groove structure according to claim 6 is the groove structure according to any one of claims 2 to 5, wherein the leak prevention portion and the leakage prevention of the first member or the second member are used. A gap is formed between the member and the member on which the portion is not formed.

According to the groove structure according to claim 1, a leak-preventing portion for preventing weld metal from leaking between a part of the weld groove and another part of the weld groove is provided. Since the leak-proof portion is formed in the shape of a part of the first member on the second member side or the shape of a part of the second member on the first side, for example, a partitioning material is used. Since it is possible to prevent the weld metal from leaking, it is not necessary to remove the backing material, and it is possible to prevent the weld metals from overlapping each other, so that welding can be performed efficiently and reliably. It becomes possible to do.

According to the groove structure according to claim 2, the leakage prevention portion includes a welding groove on the first outer surface of the target member and a welding groove on the second outer surface of the target member adjacent to the first outer surface via the corner portion. By preventing the weld metal from leaking between the two, for example, it is possible to prevent the weld metal from leaking through the corners without using a patch for partitioning, so that the patch can be removed. In addition, since it is possible to prevent the weld metals from overlapping each other, it is possible to perform welding efficiently and reliably. In particular, for example, since it is possible to prevent the weld metals from overlapping each other at the corners of the target member, the welding work can be simplified, and welding can be reliably performed using a welding robot or the like. ..

According to the groove structure according to claim 3, the leak-preventing portion is formed in the shape of a part of the second side of the first member, so that the leak-preventing portion can be prevented only by processing the first member, for example. It becomes possible to form a part.

According to the groove structure according to claim 4, the leakage prevention portions are provided at both ends of the welding groove on the first outer surface in the longitudinal direction, so that, for example, the weld metal can be reliably prevented from leaking. It will be possible.

According to the groove structure according to claim 5, the leak-proof portion has the same shape as each other on the surface side of the target member facing each other, and the leak prevention portion is on the side of the surface side of the target member adjacent to each other. Since the shapes are formed by making the shapes different from each other, for example, a leak prevention portion can be easily formed.

According to the groove structure according to claim 6, a gap is formed between the leakage prevention portion and one of the first member or the second member in which the leakage prevention portion is not formed. As a result, for example, the leakage prevention portion and one of the first member or the second member on which the leakage prevention portion is not formed are prevented from coming into contact with each other, and the first member and the second member It is possible to reliably position each other.

It is a perspective view of the pillar member which concerns on this embodiment. It is a perspective view of the column member before welding. It is a front view of the column member before welding. It is a side view of the column member before welding. It is a perspective view of a part of a column member before welding. It is a partial enlarged view of FIG. It is a partial enlarged view of FIG. It is a front view of the pillar member in the disassembled state. It is a side view of the pillar member in the disassembled state. It is a bottom view of the 1st member. It is a perspective view of the column member before welding with the tab material provided. It is a perspective view of the column member in a state where a part is welded. It is a perspective view of the column member in a state where a part is welded. It is a perspective view of the flat plate member before welding. It is a partial enlarged view of FIG.

Hereinafter, embodiments of the groove structure according to the present invention will be described in detail with reference to the accompanying drawings. First, the basic concept of the embodiment of [I] will be described, then the specific contents of the embodiment of [II] will be described, and finally, a modification of the embodiment of [III] will be described. However, the present invention is not limited to the embodiments.

[I] Basic concept of the embodiment First, the basic concept of the embodiment will be described. Embodiments generally relate to groove structures.

Here, the "groove structure" is a structure for performing welding, and specifically, in order to weld the first member and the second member forming the target member to each other, the first member and the first member are used. It is a structure that forms a welding groove between the first member and the second member when the two members are adjacent to each other, for example, a structure formed by at least one of the first member or the second member. As an example, a leak-proof portion is provided.

Further, the "target member" is a member having a groove structure, and specifically, is a concept including a member formed by the first member and the second member. This "target member" is arbitrary, for example, a concept including a member having a corner, and a concept including a member having no corner. As an example, a member constituting a building. Or, it is a concept including members and the like that constitute other objects other than buildings. Further, the "target member" is a concept including, for example, a flat plate, a curved surface plate, a tubular member, and the like, and as an example, includes a member provided along a vertical direction, a horizontal direction, or an oblique direction. It is a concept. The "target member" is, for example, a member having a polygonal column shape (that is, a shape having a corner portion including a triangular column shape, a rectangular column shape, a pentagonal column shape, etc.) or a corner. It is a concept that includes a columnar shape with no parts, for example, columns (including steel BOX columns), square or other shaped steel pipes, diagonal columns, box beams, and structural columns. , And a concept including walls and the like.

Further, the "corner portion" is a concept including, for example, a portion of the target member in which adjacent surfaces are connected to each other, and as an example, a concept including a portion forming an obtuse angle or an acute angle. is there.

Further, the "first member" and the "second member" are members forming a part of the target member, for example, a concept including members that are adjacent to each other and are welded to each other. Yes, and it is a concept that includes members and the like having similar outer shapes to each other.

Further, the "welding groove" is a groove in which a weld metal is piled up (that is, provided) for welding the first member and the second member to each other, and the first member and the second member are adjacent to each other. It is a groove formed between the first member and the second member when the first member and the second member are formed. For example, when the first member and the second member are adjacent to each other, the first member and the first member and the entire circumference of the target member It is a concept including a portion formed between the second members and the like. In addition, "the welding groove covers the entire circumference of the target member" is a concept including, for example, being provided on all the outer surfaces of the target member regardless of whether it is continuous or discontinuous. Further, it is a concept including at least being provided via a leak prevention portion.

The "leakage prevention portion" is a portion that prevents the weld metal from leaking between a part of the weld groove and another part of the weld groove, and is the first member of the first member. It is a concept including a part formed in the shape of a part of the 2 member side or a part of the shape of the 1st member in the 2nd member, for example, a part of the 1st member on the 2nd member side. In the part formed only by the shape of the above, the part formed in the shape of a part of the second member on the first member side, and the shape of a part of the first member on the second member side and in the second member. It is a concept including a portion formed in both shapes of a part of the shape on the first member side. Further, the “leakage prevention portion” is, for example, a weld metal between the welding groove on the first outer surface of the target member and the welding groove on the second outer surface of the target member adjacent to the first outer surface via the corner portion. It is a concept that includes a part that prevents leakage.

Further, the "leakage prevention portion" is a concept including, for example, portions provided at both ends of the welding groove on the first outer surface in the longitudinal direction, and the shapes of the target members on the surface sides facing each other. Is the same shape as each other, and the shapes on the surface sides of the target member that are adjacent to each other are different from each other.

Further, "a part of the section in the welded groove" and "another part of the section in the welded groove" are concepts including, for example, sections adjacent to each other in all the sections of the welded groove, and include a leak prevention portion. It is a concept that includes sections that are adjacent to each other via. Further, the interpretation of "a part of the section in the weld groove" and "the other part of the section in the weld groove" is arbitrary. For example, "the weld groove on the first outer surface" is referred to as "a part section in the weld groove". Or "some other sections in the weld groove", and "the second outer surface weld groove" is interpreted as "some sections in the weld groove" or "the other section in the weld groove". It may be interpreted as the other section of "a part of the section".

Further, the "first outer surface" and the "second outer surface" are concepts including, for example, outer surfaces adjacent to each other via corners. The “faces facing each other in the target member” is a concept including, for example, a pair of side surfaces that are not adjacent to each other on four side surfaces in a rectangular column shape.

Further, when the leak prevention portion is formed in a part of the shape of the first member on the second member side, or in the shape of a part of the second member on the first member side, the leakage prevention portion is formed. If so, the groove structure optionally provides a gap between the leak-proof portion and one of the first or second members in which the leak-proof portion is not formed. The "gap" is a gap formed between the leak-preventing portion and one of the first member or the second member in which the leak-preventing portion is not formed.

Then, in the embodiment shown below, the "target member" is a steel frame BOX column having a rectangular column shape, and the "first member" is a member provided above the "second member". The case where the “leakage prevention portion” is formed in a part of the shape of the first member on the second member side and the above-mentioned arbitrary “gap” is provided will be described.

[II] Specific contents of the embodiment Next, the specific contents of the embodiment will be described.

(Constitution)
First, the configuration of the pillar member according to the present embodiment will be described. FIG. 1 is a perspective view of the column member according to the present embodiment, FIG. 2 is a perspective view of the column member before welding, and FIG. 3 is a front view of the column member before welding. Yes, FIG. 4 is a side view of the column member before welding, and FIG. 5 is a perspective view of a part of the column member before welding. In addition, in FIGS. 1 to 4, a part of the pillar member 100 is shown.

In the following description, the XYZ directions shown in the respective drawings are orthogonal to each other, specifically, the Z direction is the vertical direction, and the X and Y directions are relative to the vertical direction. Assuming that the horizontal directions are orthogonal to each other, for example, the + Z direction is referred to as the upper side and the −Z direction is referred to as the lower side (the same applies to other figures).

The column member 100 is a target member, and specifically, a steel frame BOX column. The specific type and configuration of the pillar member 100 is arbitrary, but it is erected in the vertical direction (Z direction), has a rectangular pillar shape, and is made of metal.

Further, for example, the pillar member 100 has a plane-symmetrical shape with respect to the YZ plane passing through the center of the pillar member 100 in the X direction of FIG. 1, and the XZ plane passing through the center of the pillar member 100 in the Y direction. The shape is plane-symmetrical with respect to. Further, the pillar member 100 includes, for example, the first member 1 and the second member 2 in FIG. 1, the gap 3 in FIG. 5, the weld metal 5 in FIG. 1, and the weld groove 90 in FIG.

Of the four outer surfaces of the column member 100 having a rectangular column shape, the outer surface in the −Y direction and the outer surface not shown in the + Y direction in FIG. 2 (that is, the XZ that serves as a reference for the plane symmetry described above). The outer surface on the opposite side of the outer surface in the −Y direction with respect to the plane corresponds to the “first outer surface”, and the outer surface in the + X direction and the outer surface (that is, the above-mentioned plane symmetry) not shown in the −X direction in FIG. The outer surface on the opposite side to the outer surface in the + X direction with respect to the YZ plane which is the reference of the above corresponds to the "second outer surface" adjacent to the first outer surface via the corner portion of the column member 100. The following terms "first outer surface" and "second outer surface" will also be described as appropriate.

(Structure-First member)
6 is an enlarged view of a part of FIG. 3, FIG. 7 is an enlarged view of a part of FIG. 4, and FIG. 8 is a front view of the pillar member in a disassembled state. Further, FIG. 9 is a side view of the disassembled pillar member, and FIG. 10 is a bottom view of the first member. The first member 1 in FIG. 1 is a member that forms a part of the pillar member 100, and specifically, is a member that forms the groove structure 9 in FIG. 2 with the second member 2. The specific type and configuration of the first member 1 are arbitrary, and for example, the first outer surface 110 of FIGS. 8 to 10, the second outer surface 120, and the first inclined surface 11 of FIGS. 5 and 10. A second inclined surface 12, a wall surface 13, a contact portion 14, and a leak prevention portion 15 are provided.

(Structure-First member-First and second outer surfaces)
The first outer surface 110 and the second outer surface 120 of FIGS. 8 to 10 are outer surfaces and side surfaces of the first member 1, and specifically, surfaces that are orthogonal to each other. The first outer surface 110 is a pair of surfaces forming a part of the above-mentioned "first outer surface", and the second outer surface 120 is a pair of surfaces forming a part of the above-mentioned "second outer surface". It is a face.

(Structure-First member-First inclined surface)
The first inclined surface 11 of FIGS. 5, 6, 8 and 10 is a surface formed on the “first outer surface” side described above, and for example, the first welding groove 91 described later in FIG. 2 is formed. It is a surface for forming, and as shown in FIG. 5, a surface that is inclined with respect to the first outer surface 110 so as to be inward of the column member 100 toward the lower side (−Z direction). Yes, and as shown in FIGS. 5 and 10, it is a surface extending between the wall surfaces 13 on both sides in the X direction.

(Structure-First member-Second inclined surface)
The second inclined surface 12 of FIGS. 5 to 13 is a surface formed on the “second outer surface” side described above, and is, for example, a surface for forming the second welding groove 92 described later in FIG. Further, as shown in FIG. 6, it is a surface that is inclined with respect to the second outer surface 120 so as to be directed toward the inside of the column member 100 toward the lower side (−Z direction), and also as shown in FIG. As shown in FIG. 10, it is a surface extending to the first outer surface 110 side on both sides in the Y direction.

(Structure-First member-Wall surface)
The wall surface 13 of FIGS. 5, 6, 8 and 10 is a surface formed on the “first outer surface” side described above, and is, for example, a surface for forming the first welding groove 91 described later. Yes, and as shown in FIGS. 5 and 10, the plane is orthogonal to the first outer surface 110, and is closer to the inside of the first member 1 than the first outer surface 110 in the Y direction. It is a surface provided at a position, and is the back side of a part of the second inclined surface 12 (specifically, a part of the second inclined surface 12 in the + Y direction and a part in the −Y direction in the Y direction). It is a surface provided in.

(Structure-First member-Abutment part)
The contact portion 14 of FIGS. 5 and 8 to 10 is a portion provided at the lower end of the first member 1, for example, from the leak prevention portion 15 of FIG. 5 toward the lower side (−Z direction). Is also a portion that protrudes to the lower side (−Z direction), and is a portion that comes into contact with the second member 2 when the first member 1 and the second member 2 are adjacent to each other and welded.

(Structure-First member-Leakage prevention part)
The leak prevention portion 15 of FIG. 5 is located between the first welding groove 91 of the “first outer surface” of the column member 100, which will be described later, and the second welding groove 92 of the “second outer surface” of the column member 100, which will be described later. It is a preventive measure for preventing the weld metal from leaking. The specific type and configuration of the leak-preventing portion 15 are arbitrary, but the leak-preventing portion 15 is formed, for example, in a part of the shape of the first member 1 on the second member 2 side. It is composed of the above-mentioned wall surface 13 and a part of the back side of the wall surface 13 on the second inclined surface 12. Further, the leak prevention portion 15 is, for example, a portion provided at both ends of the first welding groove 91 in the longitudinal direction (X direction). Further, the leak prevention portion 15 has, for example, made the shapes of the pillar members 100 on the side facing each other the same as each other (that is, as described as the plane-symmetrical shape described above, the pillar member of FIG. 2). The −Y side shape and the + Y side shape of the 100 are the same as each other, and the −X side shape and the + X side shape of the pillar member 100 are the same shape), and the pillar member 100 The shapes on the surface sides adjacent to each other in the above are different from each other (that is, the shape on the −Y side and the shape on the + Y side of the column member 100 in FIG. 2 are defined as the above-mentioned plane-symmetrical shapes. , The shape of the pillar member 100 is different from the shape on the −X side and the shape on the + X side).

(Structure-2nd member)
The second member 2 in FIG. 1 is a member that forms a part of the pillar member 100, and specifically, is a member that forms the groove structure 9 in FIG. 2 with the first member 1. The specific type and configuration of the second member 2 are arbitrary, but include, for example, the flat surface portion 21 of FIGS. 5, 8 and 9.

(Structure-Second member-Plane part)
The flat surface portion 21 is a flat portion provided on the upper portion (+ Z direction) of the second member 2, for example, a planar portion extending along the horizontal direction, and is in contact with the first member 1. This is the portion with which the portion 14 comes into contact.

(Composition-Gap)
The gap 3 in FIG. 5 is a gap formed between the leak prevention portion 15 and the flat surface portion 21 of the second member 2 on which the leakage prevention portion 15 is not formed. Since the gap 3 is formed in this way, a slight dimensional error of the leak prevention portion 15 can be absorbed by increasing or decreasing the width of the gap 3, and positioning between the first member 1 and the second member can be absorbed. Can be reliably performed. That is, even if the size of the leak prevention portion 15 is slightly larger than expected due to a manufacturing error or the like, the width of the gap 3 is only reduced, so that the tip 151 of the leak prevention portion 15 in FIG. 5 is the first. It is possible to prevent at least a part of the contact portion 14 of the first member 1 from floating with respect to the flat surface portion 21 when it hits the flat surface portion 21 of the two member 2.

(Composition-welded metal)
The weld metal 5 in FIG. 1 is a metal for welding the first member 1 and the second member to each other. For example, the weld metal output from an arbitrary welding device and filled in the welding groove 90 is shown in FIG. It is a solidified and hardened metal. The specific type and composition of the weld metal 5 or the weld metal is arbitrary, but for example, a known metal material can be used.

(Structure-welding groove)
The welding groove 90 in FIG. 2 is a groove in which a weld metal is piled up for welding the first member 1 and the second member 2 to each other, and when the first member 1 and the second member 2 are adjacent to each other. It is a groove formed between the first member 1 and the second member 2 over the entire circumference of the pillar member 100. The specific type and configuration of the welding groove 90 is arbitrary, but includes, for example, a first welding groove 91 and a second welding groove 92.

(Structure-Welding groove-First welding groove)
The first welding groove 91 is a groove formed on the above-mentioned "first outer surface" side (that is, the −Y side and the + Y side of the column member 100 in FIG. 2), and extends along the X direction, for example. As shown in FIG. 5, it is a space surrounded by a first inclined surface 11, a wall surface 13, a contact portion 14, and a flat surface portion 21 of the second member 2.

(Structure-Welding groove-Second welding groove)
The second welding groove 92 is a groove formed on the above-mentioned "second outer surface" side (that is, the + X side and the −X side of the column member 100 in FIG. 2), and extends along the Y direction, for example. As shown in FIG. 5, it is basically a space surrounded by a second inclined surface 12 of the first member 1, a contact portion 14, and a flat surface portion 21 of the second member 2. is there. Since gaps 3 are formed on both end sides (+ Y side and −Y side) of the second welding groove 92, only the second inclined surface 12 of the first member 1 and the flat surface portion 21 of the second member 2 are formed. It is an enclosed space. The second welding groove 92 is adjacent to the first welding groove 91 via the leak prevention portion 15 of FIG.

Then, the groove structure 9 of FIG. 2 having such a first welding groove 91, a second welding groove 92, a leak prevention portion 15, and a gap 3 is formed between the first member 1 and the second member 2. Will be done.

(Welding method)
Next, a welding method of the column member 100 configured as described above will be described. The "welding method" is a method of welding the first member 1 and the second member to each other.

First, the second member 2 of FIG. 8 is erected along the vertical direction (Z direction) by an arbitrary method (for example, a known method or the like).

Next, as shown in FIGS. 3 and 4, the first member 1 is arranged on the second member 2. In this case, since the gap 3 in FIG. 5 is provided as described above, the entire contact portion 14 of the first member 1 is brought into contact with the flat surface portion 21 of the second member 2 for positioning. It becomes possible. Then, in this case, the welding groove 90 of FIG. 2 is formed over the entire circumference of the column member 100.

Next, the first member 1 and the second member 2 are welded. Although there are various specific welding procedures here, welding is performed by the following first welding procedure or second welding procedure. Further, the main body that performs welding is arbitrary, and for example, it may be performed by a welding robot, or it may be performed by a person.

(Welding method-first welding procedure)
First, the case of welding by the first welding procedure will be described. The "first welding procedure" is a procedure for filling the weld metal in the second welding groove 92 before the first welding groove 91. FIG. 11 is a perspective view of the column member before welding with the tab member provided, and FIG. 12 is a perspective view of the column member with a part welded.

In this first welding procedure, first, as shown in FIG. 11, the tab material 4 is attached. The “tab material” 4 means that the weld metal is not surrounded by the components of the first member 1 and the second member 2 from the second weld groove 92 to the outside of the second weld groove 92 (specifically, in the −Y direction). Or, it is a member for preventing leakage in the + Y direction, etc.), and an example is a ceramic backing material. Specifically, although it is optional, for example, the second welding groove 92 of the "first outer surface" of the column member 100 in FIG. 11 so as to surround the two second welding grooves 92 from the −Y direction and the + Y direction. A total of four tab members 4 are attached at positions corresponding to both ends of the above (only three tab members 4 are shown in FIG. 11). Since a known method can be used as a specific mounting method for the tab material 4, the description thereof will be omitted.

Next, the gap 3 in FIG. 5 (in FIG. 5, the tab member 4 is not shown) is welded. Specifically, although it is optional, for example, a relatively small ceramic backing material having a predetermined shape is prepared separately from the tab material 4, the backing material is applied to the wall surface 13 side, and then the gap 3 is formed. On the other hand, a welded metal is piled up to close the gap 3 by welding, and then the backing material is removed. Although the case of welding using the backing material has been described here, paying attention to the fact that the width of the gap 3 is relatively small, the gap 3 is directly welded to close the gap 3 without using the backing material. It may be.

Next, the weld metal is piled up and welded to the second welding groove 92 of FIG. 11, and the tab material 4 is removed after welding. In this case, the weld metal piled up in the second welding groove 92 is dammed by the tab material 4 and is dammed from the second welding groove 92 to the outside of the second welding groove 92 (specifically, the first member 1 and Leakage in the −Y direction, + Y direction, etc., which is not surrounded by the components of the second member 2, is prevented, and is dammed by the leak prevention portion 15 in FIG. 5, and the first welding is performed from the second welding groove 92. Leakage into the groove 91 is prevented.

Next, the weld metal is piled up and welded to the first welding groove 91 of FIG. In this case, the weld metal piled up in the first welding groove 91 is dammed by the leakage prevention portion 15 of FIG. 5, and the first welding groove 91 is outside the first welding groove 91 (specifically, + X). Leakage in the direction (or -X direction, etc.) is prevented. Then, as shown in FIG. 1, the first member 1 and the second member 2 are welded to each other.

(Welding method-second welding procedure)
Next, the case of welding in the second welding procedure will be described. The "second welding procedure" is a procedure for filling the weld metal in the first welding groove 91 before the second welding groove 92. FIG. 13 is a perspective view of a column member in a partially welded state.

In this second welding procedure, first, the gap 3 in FIG. 5 is welded in the same manner as described in the “first welding procedure”. Next, the weld metal is piled up and welded to the first welding groove 91 of FIG. In this case, the weld metal piled up in the first welding groove 91 is dammed by the leakage prevention portion 15 of FIG. 5, and the first welding groove 91 is outside the first welding groove 91 (specifically, + X). Leakage in the direction (or −X direction, etc.) is prevented, and leakage from the first welding groove 91 to the second welding groove 92 is prevented.

Next, in the same manner as described in the "first welding procedure", the tab material 4 (not shown in FIG. 13) is attached, and the weld metal is piled up and welded to the second welding groove 92 in FIG. Then, after welding, the tab material 4 is removed. In this case, the weld metal piled up in the second welding groove 92 is dammed by the tab material 4 (not shown in FIG. 13), and the second welding groove 92 is outside the second welding groove 92 (in detail). Is prevented from leaking in the −Y direction, the + Y direction, etc., which is not surrounded by the components of the first member 1 and the second member 2. Then, as shown in FIG. 1, the first member 1 and the second member 2 are welded to each other. This completes the explanation of the welding method.

(Effect of this embodiment)
According to the present embodiment, the weld metal leaks between the first welding groove 91 on the first outer surface of the pillar member 100 and the second welding groove 92 on the second outer surface of the pillar member 100 adjacent to the first outer surface. A leak-preventing portion 15 is provided to prevent this from occurring, and the leak-preventing portion 15 is formed in a part of the shape of the first member 1 on the second member 2 side, so that, for example, a partitioning pad is used. Since it is possible to prevent the weld metal from leaking, it is not necessary to remove the backing material, and it is possible to prevent the weld metals from overlapping each other, so that welding can be performed efficiently and reliably. It becomes possible to do. In particular, for example, it is possible to prevent the weld metals from overlapping each other at the corners of the column member 100, so that the welding work can be simplified and welding can be reliably performed using a welding robot or the like. Become. Further, the leak prevention portion 15 can be formed only by processing the first member 1.

Further, since the leakage prevention portions 15 are provided at both ends of the first welding groove 91 on the first outer surface in the longitudinal direction (X direction), for example, it is possible to reliably prevent the weld metal from leaking. ..

Further, the leak prevention portion 15 has the same shape as each of the shapes of the pillar members 100 facing each other on the surface side, and the shapes of the pillar members 100 on the side facing each other are different from each other. By doing so, for example, the leak prevention portion 15 can be easily formed.

Further, by forming a gap 3 between the leak prevention portion 15 and the second member 2, for example, the leak prevention portion 15 and the second member 2 are prevented from coming into contact with each other. Positioning between the first member 1 and the second member 2 can be reliably performed.

[III] Modifications to Embodiments Although the embodiments according to the present invention have been described above, the specific configurations and means of the present invention are within the scope of the technical idea of each invention described in the claims. Can be arbitrarily modified and improved. Hereinafter, such a modification will be described.

(About the problem to be solved and the effect of the invention)
First, the problem to be solved by the invention and the effect of the invention are not limited to the above-mentioned contents, and may differ depending on the implementation environment and the details of the configuration of the invention, and only a part of the above-mentioned problems. May be resolved or only some of the above effects may be achieved.

(About shape, numerical value, structure, time series)
With respect to the components illustrated in the embodiments and drawings, the shapes, numerical values, or the interrelationships of the structures or time series of the plurality of components shall be arbitrarily modified and improved within the scope of the technical idea of the present invention. Can be done.

(About the leak prevention part)
Further, in the above embodiment, the case where the leak prevention portion 15 is formed by using the first member 1 of FIG. 5 has been described, but the present invention is not limited to this. For example, the shape of the second member 2 on the first member 1 side (+ Z direction) may be arbitrarily changed to form a leak-proof portion in the second member 2, or the second member 2 and the second member 2 and the second member 2 may be formed. The shape of both of the members 1 adjacent to each other may be arbitrarily changed to form a leak-proof portion.

(About the gap)
Further, in the above embodiment, the case where the gap 3 in FIG. 5 is provided has been described, but the present invention is not limited to this. For example, in an arbitrary case where the dimensions of the leak prevention portion 15 can be strictly controlled, the height of the tip 151 of the leak prevention portion 15 and the tip of the contact portion 14 (the end in the −Z direction) in FIG. By processing so that they are provided at the same positions in the direction (Z direction), the gap 3 may not be provided.

(About flat plate member)
Further, the leak-proof portion of the present invention may be applied to a flat plate member. FIG. 14 is a perspective view of the flat plate member before welding, and FIG. 15 is an enlarged view of a part of FIG.

(About flat plate member-configuration)
First, the configuration of the flat plate member will be described. The flat plate member 600 of FIG. 14 is a target member, for example, is erected in the vertical direction (Z direction), has a flat plate shape having a predetermined thickness, and is made of metal. .. The flat plate member 600 includes, for example, a first member 6, a second member 7, and a welding groove 80.

The first member 6 is a member that forms a part of the flat plate member 600, and specifically, is a member that forms a groove structure 8 with the second member 7, for example, an inclined surface 61 and an inclined surface 61. A leak prevention unit 62 is provided.

The inclined surface 61 is a surface for forming the first welding groove 81 and the second welding groove 82, and as shown in FIG. 14, the inclined surface 61 is directed toward + Y walking toward the lower side (−Z direction). It is a surface that is inclined to.

The leak prevention portion 62 is a preventive means for preventing the weld metal from leaking between the first welding groove 81 and the second welding groove 82. The specific type and configuration of the leak prevention portion 62 are arbitrary, but the leak prevention portion 62 is formed, for example, in a part of the shape of the first member 6 on the second member 7 side (−Z direction). That is, it is a portion that is integrally formed with the other portion of the first member 6, and is a portion that protrudes from the inclined surface 61 side, and as shown in FIG. 15, the tip portion is tapered. This is a portion where the tip-side inclined surface 621 is formed by the tapered shape.

The second member 7 in FIG. 14 is a member that forms a part of the flat plate member 600, and specifically, is a member that forms a groove structure 8 with the first member 6.

The welding groove 80 of FIG. 14 is a groove in which a weld metal is piled up for welding the first member 6 and the second member 7 to each other, and when the first member 6 and the second member 7 are adjacent to each other. It is a groove formed between the first member 1 and the second member 2. The specific type and configuration of the welding groove 80 is arbitrary, but includes, for example, a first welding groove 81 and a second welding groove 82.

The first welding groove 81 is a part of the section separated by the leakage prevention portion 62 in the welding groove 80, and the second welding groove 82 is separated by the leakage prevention portion 62 in the welding groove 80. It is a part of the section and is adjacent to the first welding groove 81.

(About flat plate members-welding method)
Next, a welding method of the flat plate member 600 configured as described above will be described. The "welding method" is a method of welding the first member 6 and the second member 7 to each other.

First, the second member 7 of FIG. 14 is erected along the vertical direction (Z direction) by an arbitrary method (for example, a known method or the like).

Next, the first member 6 is arranged on the second member 7. In this case, a flat plate-shaped backing material 801 covering the first member 6 and the second member 7 is attached to the + Y side surface of the first member 6 and the second member 7 by a known method. A welding groove 80 is formed between the first member 6 and the second member 7.

Next, the first member 6 and the second member 7 are welded. Specifically, first, a weld metal is placed in the space between the tip-side inclined surface 621 of the leak prevention portion 62 of FIG. 14 in the vertical direction (Z direction) and the upper surface (+ Z direction) of the second member 7. , The leak prevention portion 62 is welded to the second member 7. Next, the weld metal is filled in one of the first welding groove 81 and the second welding groove 82. In this case, since the leakage prevention portion 62 is formed between the one welding groove and the other welding groove of the first welding groove 81 or the second welding groove 82, the leakage prevention portion 62 is formed from one welding groove. It prevents the weld metal from leaking into the other weld groove. Next, the first member 6 and the second member 7 are welded by filling the other welding groove with the weld metal. As a result, the flat plate member 600 is formed.

(Additional note)
The groove structure of Appendix 1 is the first member when the first member and the second member are adjacent to each other in order to weld the first member and the second member forming the target member to each other. And a groove structure that forms a weld groove between the second members, and the weld metal leaks between a part of the weld groove and another part of the weld groove. The leak-preventing portion is provided with a leak-preventing portion, which has a shape of a part of the first member on the second member side or a part of the shape of the second member on the first member side. It is formed.

As for the groove structure of Appendix 2, in the groove structure described in Appendix 1, the target member has a corner portion, and the welding groove is such that the first member and the second member are adjacent to each other. When this is done, the leakage prevention portion covers the entire circumference of the target member, and the leakage prevention portion is a first portion of the target member adjacent to the first outer surface via the welding groove on the first outer surface of the target member and the corner portion. 2 Prevents welded metal from leaking between the outer surface and the weld groove.

As for the groove structure of Appendix 3, in the groove structure described in Appendix 2, the first member is provided on one side of the target member with respect to the second member, and the leak prevention portion is the first. It is formed in a part of the shape of the member on the side of the second member.

The groove structure of Appendix 4 is the groove structure according to Appendix 2 or 3, in which the leakage prevention portions are provided at both ends of the first outer surface in the longitudinal direction of the weld groove.

The groove structure of Appendix 5 is the groove structure according to any one of Supplements 2 to 4, wherein the target member has a rectangular pillar shape, and the leakage prevention portion is a surface of the target member facing each other. It is formed by making each of the side shapes the same shape as each other and making each of the adjacent surface side shapes of the target member different from each other.

In the groove structure of Appendix 6, in the groove structure according to any one of Appendix 2 to 5, the leak prevention portion and the leakage prevention portion of the first member or the second member are formed. A gap is formed between the member and the other member.

(Effect of appendix)
According to the groove structure described in Appendix 1, a leak-preventing portion for preventing the weld metal from leaking between a part of the weld groove and another part of the weld groove is provided, and leakage occurs. Since the stopper is formed in the shape of a part of the first member on the second member side or the shape of a part of the second member on the first side, for example, a partitioning pad can be used. Since it is possible to prevent the weld metal from leaking, it is not necessary to remove the backing material, and it is possible to prevent the weld metals from overlapping each other, so that welding is performed efficiently and reliably. It becomes possible.

According to the groove structure described in Appendix 2, the leak-proof portion is formed between the weld groove on the first outer surface of the target member and the weld groove on the second outer surface of the target member adjacent to the first outer surface via the corner portion. By preventing the weld metal from leaking between each other, for example, it is possible to prevent the weld metal from leaking through the corners without using a patch for partitioning, so that the patch can be removed. It becomes unnecessary, and it is possible to prevent the weld metals from overlapping each other, so that welding can be performed efficiently and reliably. In particular, for example, since it is possible to prevent the weld metals from overlapping each other at the corners of the target member, the welding work can be simplified, and welding can be reliably performed using a welding robot or the like. ..

According to the groove structure described in Appendix 3, the leak-preventing portion is formed in the shape of a part of the second side of the first member, so that, for example, the leak-preventing portion is formed only by processing the first member. Can be formed.

According to the groove structure described in Appendix 4, for example, it is possible to reliably prevent the weld metal from leaking by providing the leakage prevention portions at both ends of the welding groove on the first outer surface in the longitudinal direction. It becomes.

According to the groove structure described in Appendix 5, the leak-proof portion has the same shape on each of the facing surfaces of the target member, and the shape of the facing surfaces of the target member adjacent to each other. Since each is formed by having different shapes from each other, for example, a leak prevention portion can be easily formed.

According to the groove structure described in Appendix 6, a gap is formed between the leakage prevention portion and one of the first member or the second member in which the leakage prevention portion is not formed. For example, the leakage prevention portion and one of the first member or the second member on which the leakage prevention portion is not formed are prevented from coming into contact with each other, and the first member and the second member are mutually affected. It is possible to reliably perform positioning between them.

1 1st member 2 2nd member 3 Gap 4 Tab material 5 Welded metal 6 1st member 7 2nd member 8 Groove structure 9 Groove structure 11 1st inclined surface 12 2nd inclined surface 13 Wall surface 14 Contact portion 15 Leakage Stop 21 Flat surface 61 Inclined surface 62 Leakage prevention 80 Weld groove 81 First weld groove 82 Second weld groove 90 Weld groove 91 First weld groove 92 Second weld groove 100 Pillar member 110 First outer surface 120 Second outer Side 600 Flat plate member 621 Tip side inclined surface 801 Backing material

Claims (6)

In order to weld the first member and the second member forming the target member to each other, when the first member and the second member are adjacent to each other, between the first member and the second member. It is a groove structure that forms a weld groove in the
A leak-preventing portion for preventing weld metal from leaking between a part of the weld groove and another part of the weld groove is provided.
The leak-proof portion is formed in the shape of a part of the first member on the side of the second member or the shape of a part of the second member on the side of the first member.
Groove structure. The target member has corners and has corners.
The welding groove extends over the entire circumference of the target member when the first member and the second member are adjacent to each other.
The leak-proof portion is a weld metal between the weld groove on the first outer surface of the target member and the weld groove on the second outer surface of the target member adjacent to the first outer surface via the corner portion. To prevent leakage,
The groove structure according to claim 1. The first member is provided on one side of the target member with respect to the second member.
The leak-proof portion is formed in a part of the shape of the first member on the side of the second member.
The groove structure according to claim 2. The leak prevention portions are provided at both ends of the first outer surface in the longitudinal direction of the weld groove.
The groove structure according to claim 2 or 3. The target member has a rectangular pillar shape.
The leak-proof portion has the same shape on each of the facing surfaces of the target member, and different shapes on the adjacent surface sides of the target member. Formed by,
The groove structure according to any one of claims 2 to 4. A gap is formed between the leak-preventing portion and one of the first member or the second member in which the leak-preventing portion is not formed.
The groove structure according to any one of claims 2 to 5.

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