JPH0741415B2 - Assembly welding equipment for variable section welding H-section steel - Google Patents

Description

Detailed Description of the Invention

[0001]

This invention relates to a welded H-section steel (Bui).
ld up H-Beam) for assembling and welding apparatus, and more specifically, for assembling a H-section steel with a variable cross section such that the flange width, the web width (height), or both the flange width and the web width change. The present invention relates to a welding device.

[0002]

2. Description of the Related Art Conventionally, an H-shaped steel having an H-shaped cross section and parallel inner and outer surfaces of a flange portion has not only excellent bending strength and buckling strength but also workability. Since it is good, it is widely used for pillars, beams, piles, and erection materials for structures such as buildings, bridges, and machines.

By the way, when a composite girder is constructed by combining such H-section steel and concrete, a welded H-section steel is used from the viewpoint that it is necessary to carry out an economical design and to set desired dimensions. Has been adopted.

In this welded H-section steel, a web member 3 is usually placed on one of the flange members 1 as shown in FIG. The web members 3 are positioned by the web rollers 7 so that they come to the flange center, and the main body pressing roller 9 presses the web members 3 into close contact with each other to form the inverted T-shaped flange member 1 and the web member 3. Assembling and welding is performed on both sides of the web member 3 while sending it out by the conveying roller 11 to form an inverted T-shaped member, and then the inverted T-shaped member is reversed, and the above process is repeated to make the web member 3 have the other flange. Assembling and welding the member 13
It is manufactured by assembling as shaped steel, and then undergoing processes such as main welding and flange straightening.

However, the assembling and welding apparatus as described above cannot cope with assembling and assembling welding of the flange width, the web width (height), or the H-section steel having a variable cross section in which both the flange width and the web width change. Therefore, there has been a problem that the production of such a H-section steel with a variable cross section is complicated and very time-consuming, and the production cost increases.

Therefore, for example, an assembly welding apparatus as disclosed in Japanese Patent Publication No. 53-936 is proposed. However, although this assembly welding apparatus can cope with a change in the flange width, it cannot cope with the assembly welding of a web width or a variable section H-section steel in which both the web width and the flange width are changed. It has not been an essential solution to the problems in the past.

[0007]

Therefore, in the present invention, a plurality of drive roller devices whose positions can be adjusted in the horizontal direction corresponding to the width dimension of a horizontally held web member are provided, and the device is raised vertically by a rising device. And a conveyor having a vertically movable drive guide roller device for holding the lower edge of the flange member, an assembly having a welding torch for assembling and welding the web member and the flange member, and a flange. An assembly welding device is basically formed by a reversing mechanism for reversing a web member in which members are assembled and welded, and a flange member that has been raised in the conveying section is pressed and held at a side edge portion of the web member and moved in a horizontal direction. A possible web guide roller device is arranged, while the assembly part holds the web member conveyed by the drive roller device of the conveying part and the position can be adjusted in the horizontal direction. A pair of driving roller devices is provided in front of the driving roller device of the conveying section, and abutting the upper and lower side edge portions of the flange member and aligning the flange member with the side edge portions of the positioned web member. Alternatively, a flange guide roller device that can move up and down and is also movable in the horizontal direction is provided, and the flange member centered by these flange guide roller devices cooperates with the web guide roller device of the transport section. A pair of or more horizontally movable web guide roller devices, which are arranged to face each other so as to press and hold one edge of the web member and hold the other edge of the web member, are provided, and a flange member is provided in the transport section. The drive guide roller device, the flange guide roller device, and the web guide roller device that hold the lower edge of the By adopting a structure that operates along the side edge shapes of the member and the flange member, it is possible to assemble and assemble welds of H-section steel with a variable cross section in which the flange width, the web width, or both the flange width and the web width change. It was done so.

[0008]

[Operation] In the assembly welding apparatus for variable-section welded H-section steel according to the present invention, after one of the flange members is vertically raised with respect to the horizontally held web member, the tip is aligned, After performing the centering of the flange member with respect to the member and performing the assembly welding while pressing the flange member along the side edge shape of the web member, and then reversing this by a known reversing mechanism to return to the original position, the web member By aligning the other flange member with the other side edge portion by the same procedure and performing assembly welding while pressing, H
Since it is formed as a shaped steel, it is possible to easily and efficiently perform assembling welding even with a H-section steel having a variable cross section in which the dimensions of the web member and / or the flange member are changed. Is.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of an assembly welding apparatus for variable-section welded H-section steel according to the present invention will be described in detail below with reference to the accompanying drawings.

1 and 2, the assembly welding apparatus 20 for H-section steel with variable cross-section welding according to the present invention transfers a web member W held horizontally and a flange member F in a vertically raised state. Transport section 22, an assembly section 24 for pressing and assembling and welding the flange member F to one side edge of the transferred and positioned web member W, and a web member in which the flange member F is assembled and welded to the one side edge. A known reversing mechanism 25 for reversing W, for example, a reversing device attached to a portal crane is provided.

On the floor of the conveying section 22, drive roller devices 26, 26 whose positions can be adjusted in the horizontal direction by a chain mechanism corresponding to the width dimension of the web member W held horizontally and a position-fixed drive roller device. 28 and 28 are arranged, respectively. By adopting such a configuration, the web member W can be suitably transferred without being affected by the change in the width of the flange member F. On the other hand, a rising device 30, 30 for vertically rising the flange member F vertically fed by a conveyor device (not shown) is provided adjacent to the drive roller devices 28, 28, and the feed core of the web member W and the flange member F is further provided. The lower edge of the flange member F raised by the raising device 30 is held on X and the flange member F is held.
Guide roller devices 32, 32, 3 for transporting
2 is provided.

The drive guide roller devices 32 are formed so as to be capable of pivoting in the vertical direction about the shafts 34, respectively, and the flange members F are transferred when the flange members F are transferred.
It is configured so that it can respond to changes in width. In addition, the transport unit 2
2, the flange member F is raised on the side of the rising device 30.
The web guide roller devices 36 and 36 are arranged so as to prevent them from falling by pressing and holding them against the side edge portion Wa of the web member W and to be horizontally movable by the cylinder mechanism.

On the other hand, the assembling section 22 holds and transfers the flange member F transferred by the drive roller devices 26, 26 and 28, 28, and at the same time, corresponds to the width dimension of the web member W and the thin lid mechanism. Drive roller device 38 and free rollers 40, 4 whose positions can be adjusted horizontally by
0 is set. A main body pressing roller device (not shown) for pressing the upper surface of the web member W is arranged above these rollers.

The drive guide roller device 3 is provided on the opposite side of the web W and the flange F from the feed core X.
Flange member F transferred by 2, 32, 32
Two pairs of flange guide roller devices 42, 4 for abutting the upper and lower side edge portions Fa and Fb of the web member W and aligning the flange member F with the side edge portion Wa of the web member W respectively.
4 is provided. These flange guide roller devices 42 and 44 are formed by a cylinder mechanism so that the upper and lower sides thereof can be adjusted in position in the vertical and horizontal directions, respectively, so that not only the width change of the flange member F but also its longitudinal change (web member It is configured to be able to follow the width change of W).

Further, in the assembling section 24, the flange member F centered by the flange guide roller devices 42 and 44 is cooperated with the web guide roller devices 36 and 36 of the transport section 22 and the side of the web member W is provided. The web guide roller devices 46, 4 arranged to face each other so as to press and hold the other edge Wb of the web member W while pressing and holding the other edge Wb of the web member W.
6 is arranged, and the web guide roller devices 46, 46 arranged opposite to each other can be adjusted in position by a cylinder mechanism.

In FIG. 1, reference numeral 48 is a welding torch for assembling the web member W and the flange member F assembled in the assembling section 24. The welding torch 48 sandwiches the web member W. The upper and lower parts are arranged so that the position of the web member W can be adjusted according to changes in the side edges of the web member W.

Next, a procedure for assembling, for example, a variable-section welded H-section steel having a varying web width by using the welding and assembling apparatus according to the present invention having the above-described structure will be described.

First, in assembling and welding, the carrying section 22
While the web member W is held horizontally on the drive roller devices 26, 26, 28, 28 of FIG.
0 is vertically raised on the drive guide roller devices 32, 32, 32, and the flange member F is horizontally moved by the web guide roller devices 36, 36 to press the side edge portion Wa of the web member W. Hold it in close contact (see Figure 3a).

Next, the web members W held in close contact with each other
And the flange member F to drive roller devices 26, 26, 28,
28 and the drive guide roller devices 32, 32, 32 to move toward the assembly section 24. The positional relationship between the web member W and the flange member F in this state is not particularly matched (see FIG. 3b). In addition, at the time of transfer,
Numerical values of varying width dimensions of the web member W and the flange member F are input to a control mechanism (not shown).

The web member W and the flange member F, which are held in close contact with each other, are driven by the drive roller devices 26, 26, 2.
8, 28 and drive guide roller device 32, 32, 32
When it is transferred to the assembly section 24 by the flange guide roller device 4 according to the numerical value input to the control mechanism.
2, 44 and the web guide roller device 46, 46 are operated by a cylinder mechanism. That is, the flange member F is driven by the flange guide roller devices 42 and 44 which are in contact with the upper and lower edges Fa and Fb, respectively.
Centering is performed on the side edge Wa of the web member W, and the web member W is also centered by the web guide roller devices 46 and 46 which hold the web member W by the flange member F which has been centered. Flange guide roller devices 42, 44 and web guide roller devices 46, 4
By the driving operation of 6, the sheet is transferred in the direction of the front end alignment portion (the front end of the assembly portion 24) (see FIG. 3C). In this state, the rear end side of the web member W and the flange member F are not centered with respect to the front end side of the flange member F.

In this way, when the leading ends of the web member W and the flange member F aligned with each other reach the leading end alignment portion, each drive roller is stopped once and the leading ends of the web member W and the flange member F are stopped. The end tab is attached to. When the end tabs are attached, the drive mechanism including the flange guide roller devices 42 and 44 and the web guide roller devices 46 and 46 reversely rotate to cause the welding torch 48.
The front end positions of the web member W and the flange member F are retracted to the installation position (see FIG. 3d).

When the welding torch 48 is assembled at the tip position, the flange guide roller device 42,
The drive mechanism including 44 and the web guide roller devices 46, 46 is again rotated in the normal direction, and the web member W and the flange member F are operated while following the input numerical values. Assembling by tack welding is performed by the welding torch 48 while centering by 46, 46 (see FIG. 3e).

In this way, one edge W of the web member W is formed.
After the assembling of the one flange member F with respect to a is completed, it is reversed by the known reversing mechanism 25, and then the driving mechanism including the flange guide roller devices 42 and 44 and the web guide roller devices 46 and 46 is reversed to convey the conveying section. 22 to the original position (see FIG. 3f), and in this original position, after the other flange member F is vertically raised by the rising devices 30 and 30 as described above, the web member W is then moved in the same manner as described above. By assembling the other flange member F to the other side edge Wb, the assembly of the H-section steel with a variable cross section as shown in FIG. 3g is completed.

In the case of this embodiment, the other side edge Wb of the web member W is linear and the other flange member F.
Since the rectangular shape is also rectangular, the assembly is performed in the same manner as the normal H-section steel, but the numerical values of the width dimensions (changes in the side edge shapes) of the web member W and the flange member F that change are input to the control mechanism. Incidentally, the guide roller devices are operated to follow each other along this numerical value to perform centering and welding, so that the other side edge portion Wb of the web member W and the other flange member F have an H-shaped cross section. It goes without saying that even steel can be assembled and welded in the same manner.

[0025]

As described above, according to the assembling / welding apparatus for variable section welding H-section steel according to the present invention, the tip end of the flange member is vertically raised with respect to the horizontally held web member. Positioning is performed, then one of the flange members is aligned with the web member, and assembling and welding is performed while pressing the flange member along the side edge shape of the web member, and then it is inverted and returned to the original position. Later, the other flange member of this web member is assembled and welded while pressing the other flange member in the same procedure to form the H-section steel, so that the web width and the flange width change, or the web width and the flange width are changed. It is possible to easily and extremely efficiently perform assembling and welding of various H-section steels having a variable cross-section that change together.

Further, when assembling and welding, conventionally, the web member and the flange member were assembled and transferred in the usual I-shape, whereas the horizontally held web member and the one flange member which was vertically raised. Since (or both flange members) are assembled and assembled while being transferred, not only the workability is improved but also stable transfer can be performed. Furthermore,
It has various advantages such that the reversing work at the time of assembly can be performed with a small force and the product can be stored in a stable state.

Although the preferred embodiment of the assembly welding apparatus for variable section welded H-section steel according to the present invention has been described above, the present invention is not limited to this embodiment and does not depart from the spirit of the present invention. Of course, various changes can be made within the range.

[Brief description of drawings]

FIG. 1 is an explanatory plan view showing a preferred embodiment of an assembly welding apparatus for variable-section welded H-section steel according to the present invention.

FIG. 2 is a schematic perspective view of essential parts showing a relationship between each roller device in the assembly welding device shown in FIG. 1, and a web member and a flange member to be assembled and welded.

3A to 3G are explanatory views showing a procedure of assembling by assembling the H-section steel with a variable cross section by the assembly welding apparatus shown in FIG.
a is an explanatory view of a state in which one flange member is pressed against the side edge portion of the web member to hold it in close contact, and b is an explanatory view of a state in which the web member and the flange member that are held in close contact are transported in the direction of the assembling part. , C is an explanatory view of a state in which the web member and the flange member, which have been centered with each other, are being transported in the direction of the tip aligning portion, and d is a description of a state in which the tip positions of the web member and the flange member are assembled with a welding torch. FIG. 6e is an explanatory view of a state in which the welding torch is used for tack welding, and f is an explanatory view of a state in which the assembling web member in which one flange member has been assembled is inverted and retracted to the original position, g.
[Fig. 3] is a perspective view of an H-section steel with a variable cross-section after completion of assembly welding.

FIG. 4 is an explanatory view of an assembly welding procedure for a normal welded H-section steel.

[Explanation of symbols]

20 Welding / assembling device base, 22 Conveying part, 24 Assembling part, 25 Inversion mechanism, 30 Standing device, 26, 28 Drive roller device, 32
Drive guide roller device 34 Axis, 36 Web guide roller device, 38 Drive roller device, 40 Free roller, 42,44 Flange guide roller device, 46 Web guide roller device, 48 Welding torch,

Claims (1)

[Claims] 1. A plurality of drive roller devices whose positions can be adjusted in the horizontal direction corresponding to the width dimension of a horizontally held web member, and a lower edge portion of a flange member which is vertically raised by a raising device. A carrying section provided with a vertically movable drive guide roller device for holding, an assembly section having a welding torch for assembling and welding a web member and a flange member, and a web member having the flange member assembled and welded is reversed. And a horizontally movable web guide roller device that presses and holds the raised flange member against the side edge portion of the web member in the conveying section, and conveys it to the assembling section. A drive roller device that holds the web member conveyed by the drive roller device of the transporting unit and that can adjust the position in the horizontal direction is provided in front of the drive roller device of the transporting unit; A pair of or more vertically movable flange guides that abut the upper and lower edges of the flange member and align the flange member with the side edges of the positioned web member. Roller devices are provided, and the flange member centered by these flange guide roller devices is pressed and held at one side edge portion of the web member in cooperation with the web guide roller device of the transport section, and the other edge of the web member is also provided. Drive guide roller device, flange guide roller device, and web for holding a lower edge portion of the flange member in the transport portion by providing a pair of or more horizontally movable web guide roller devices that are arranged to face each other so as to hold the portion. The guide roller device is configured to operate along the side edge shapes of the web member and the flange member. Assembly welding apparatus varying cross-section welded H-beams, characterized and.