JPH0663739A - Method and device of assembling and welding of various cross section welded wide flange shape steel - Google Patents

Abstract

PURPOSE:To easily and efficiently execute assembling-welding of a member by assembling and welding a flange member with pressing it along the side edge shape of a web member, reversing and returning to the original position, and then assembling and welding other flange member along the side edge shape of the web member. CONSTITUTION:The web member W held horizontally and one flange member F erected vertically are transferred, subjecting to alignment of the edge positions of the web member W and flange member F. Successively, this flange member is assembled and welded with pressing it along the side edge shape of the web member, while executing alignment of the flange member to the web member. Thus, one flange member is assembled on one side edge part Wa of the web member, reversing and returning to the original position. Furthermore, on the other side edge of the web member by the same procedure, the other flange member is assembled and welded along the side edge shape of the web member. By this method, any kind of various cross sections with a varying web width and flange width is easily and efficiently assembled and welded.

Description

Detailed Description of the Invention

[0001]

This invention relates to a welded H-section steel (Bui).
The present invention relates to a method for assembling and welding Id up H-Beam) and an assembling apparatus therefor, and more particularly to a method and an apparatus for assembling and welding variable section welded H-section steel with varying flange width and / or web width. It is about.

[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 required 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, usually, as shown in FIG. 4, a web member 3 is placed on one flange member 1, and the flange member 1 is pressed by the flange rollers 5 and 5, so that the flange member 1 is covered. The web members 3 are positioned by the web rollers 7 so that they come to the center of the flange, 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 being sent out by the conveying roller 11, and then the inverted T-shaped member is inverted and the above steps are repeated to assemble and weld the other flange member 13 to make the H-shaped steel. It is manufactured by assembling and then undergoing processes such as main welding and flange straightening.

However, in the assembling welding apparatus as described above, only the H-section steel whose web width (height) changes, the H-section steel whose web width (height) and flange width change together, and further only the flange width. Since it is not possible to assemble an H-section steel having a varying cross-section, it is necessary to solve such assembling and assembling welding of such a H-section steel having a complex cross section, which is complicated and time-consuming, and also increases the manufacturing cost. Issues were pointed out.

[0006]

Therefore, according to the present invention,
While changing the way of thinking, the horizontally held web member and one vertically raised flange member are transferred, the tips of the flange member are aligned with the web member, and then the flange member is aligned with the web member. This flange member is pressed along the side edge shape of the web member to perform assembly welding, and when one flange member is assembled to one side edge portion of the web member in this way, it is inverted and returned to the original position, Further, by assembling and welding the other flange member to the other side edge portion of the web member along the side edge shape of the web member in the same procedure, the modified cross section in which the web width (height) and / or the flange width changes Even H-section steel can be assembled and welded easily and efficiently.

In this case, when specifically assembling and welding the H-section steel with a variable cross section, the assembling apparatus is provided with a plurality of driving units which can adjust the position in the horizontal direction according to the width dimension of the horizontally held web member. A conveyor provided with a roller device and a vertically movable guide roller device for holding a lower edge of a flange member vertically raised by a rising device, a web member and a flange member. And a horizontally movable web guide that presses and holds a raised flange member to the side edge portion of the web member in the conveying portion. A roller device is provided, and on the other hand, a drive roller device that holds the web member conveyed by the drive roller device of the conveying unit in the assembly portion and that can adjust the position in the horizontal direction is carried. Provided in front of the section of the drive roller arrangement,
A pair of vertically movable and horizontally movable flanges 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. A guide roller device is 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 of the web member is also provided. A drive guide roller device and a flange guide roller device that are provided with a pair of or more horizontally movable web guide roller devices that are arranged to face each other so as to hold the edge part, and hold the lower edge part of the flange member in the transport section. The web guide roller device may be operated along the side edge shape of the web member and / or the flange member. It is preferable to configure.

[0008]

[Working] In the method for assembling and welding variable-section welded H-section steel according to the present invention, the tip of a flange member is vertically aligned with respect to a horizontally held web member, and then the front end of the flange member is aligned. Assembling and welding is performed while aligning the flange member and pressing the flange member along the side edge shape of the web member, and then reversing this and returning to the original position, another edge part of this web member is Since H-section steel is assembled by assembling and welding while pressing the flange member in the same procedure, even H-section steel with a variable cross section in which the web width (height) and / or the flange width changes can be easily obtained. In addition, the assembly welding can be performed efficiently.

[0009]

The method for assembling and welding variable section welded H-section steel according to the present invention will be described below in detail with reference to the accompanying drawings in relation to a suitable assembling apparatus for carrying out the method.

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. The transport unit 22 and the assembly unit 24 for pressing and assembling and welding the flange member F to one side edge of the transferred and positioned web member W are basically configured.

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 be pressed and held by the side edge portion Wa of the web member W to prevent the web member W from falling 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 driving roller devices 26, 26 and 28, 28, and at the same time, in accordance with the width of the web member W, the cylinder Drive roller device 38 and free roller 4 whose position can be adjusted in the horizontal direction by a mechanism.
0 and 40 are arranged. 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 the change in the longitudinal direction thereof (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 are provided, and these web guide roller devices 46, 4
6 is also constructed so that its position can be adjusted 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 apparatus according to the present invention configured as described above will be described.

First, in assembling and welding, the carrying section 22
In the state where the web member W is held horizontally on the drive roller devices 26, 2628 and 28 of FIG.
Is vertically raised by 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 against the side edge portion Wa of the web member W to be in close contact therewith. Hold (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 portion Wa of the web member W, and the web member W is also centered by the web guide roller devices 46 and 46 that hold the web member W through the flange member F that has been centered. Flange guide roller devices 42, 44 and web guide roller devices 46, 4
It is transferred to the front end alignment portion (front end of the assembly portion 24) by the driving operation of 6 (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.

When the leading ends of the web member W and the flange member F aligned with each other reach the leading end aligning portion, each drive roller stops and the end tabs are formed at the leading ends of the web member W and the flange member F. It is attached. When the end tabs are attached, the flange guide roller devices 42, 44 and the web guide roller devices 46,
The drive mechanism including 46 is reversed, and the leading end positions of the web member W and the flange member F are retracted and assembled to the installation position of the welding torch 48 (see FIG. 3d).

When the assembly of the tip position by the welding torch 48 is completed, the drive mechanism including the flange guide roller devices 42, 44 and the web guide roller devices 46, 46 is rotated in the normal direction again, and the web member W and the flange member F are input. Flange guide roller devices 42 and 44 and web guide roller devices 46 and 4 which are operated while following the numerical values
Assembling by tack welding is performed by the welding torch 48 while centering by 6 (see FIG. 3e).

In this way, one edge W of the web member W is formed.
After the assembly of the one flange member F with respect to a is completed, it is reversed by a known reversing device, 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 reverse the conveying unit 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 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 even if the other side edge portion Wb of the web member W and the other flange member F have a variable cross section, the assembly welding is similarly performed. It goes without saying that you can do it.

[0025]

As described above, according to the method and apparatus for assembling and welding the variable-section welded H-section steel according to the present invention, the flange member is vertically raised with respect to the horizontally held web member. In this state, align the tip end, then align the flange member with the web member, and press the flange member along the side edge shape of the web member to perform assembly welding, then reverse it and return it to the original position. After that, another flange member is pressed to the other side edge portion of this web member in the same procedure to assemble and weld the H-section steel, so that the web width (height) and / or the flange width are changed. Assembling and welding can be performed easily and efficiently even with various H-section steels with varying cross sections.

Further, when assembling and welding, conventionally, the web member and the flange member were assembled in an I-shape and transferred, whereas the H-shape is assembled and transferred for assembly, so that not only the workability is improved. A stable transfer can be performed. Furthermore, the reversing operation at the time of assembly can be performed with a small force, and the product can be stored in a stable state, which has various advantages.

Although the method for assembling and welding the variable-section welded H-section steel according to the present invention has been described above with reference to the preferred embodiment, the present invention is not limited to this embodiment, and the present invention is not limited to this embodiment. It goes without saying that various modifications can be made without departing from the spirit of the invention.

[Brief description of drawings]

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

FIG. 2 is a schematic perspective view showing a relationship between each roller device in the assembly 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 H-section steel with a variable cross section by the assembling apparatus shown in FIG. 1, in which a shows pressing one flange member against a side edge portion of a web member. And FIG. 7 is an explanatory view of a state in which the closely held web member and the flange member are being transferred in the direction of the assembling portion, and c is a web member and a flange member that are mutually centered. Explanatory drawing of the state of transferring to the tip position alignment portion direction, d is an explanatory view of the tip position of the web member W flange member assembled with a welding torch, and e is a description of tack welding with a welding torch. FIG. 6F is an explanatory view of a state in which the assembling web member in which one of the flange members has been assembled is inverted and retracted to the original position, and g is a perspective view of the H-section steel with a variable cross section in which assembly welding is completed.

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 section, 24
Assembly part, 26, 28 Drive roller device, 30 Start-up device, 32 Drive guide roller device, 34 Pivot shaft, 36
Web guide roller device, 38 drive roller device, 4
0 free roller, 42,44 flange guide roller device, 46 web guide roller device, 48 welding torch,

Claims (2)

[Claims] 1. A horizontally held web member and one vertically raised flange member are transferred, the leading ends of the flange member and the web member are aligned, and then the flange member is aligned with the web member. This flange member is pressed along the side edge shape of the web member to perform assembly welding, and when one flange member is assembled to one side edge portion of the web member in this way, it is inverted and returned to the original position, Further, the other side edge portion of the web member is assembled and welded to the other side edge portion of the web member along the side edge shape of the web member in the same procedure as described above. 2. A plurality of drive roller devices whose positions can be adjusted in the horizontal direction according to the width of a horizontally held web member, and a lower edge portion of a flange member which is vertically raised by a raising device. A conveyor provided with a vertically movable drive guide roller device for holding and an assembly provided with a welding torch for assembling and welding these web member and flange member are provided. A horizontally movable web guide roller device that presses and holds the raised flange member against the side edge of the web member is provided,
On the other hand, a drive roller device for holding the web member conveyed by the drive roller device of the conveying part and adjusting the position in the horizontal direction is provided in front of the drive roller device of the conveying part in the assembling part, and both upper and lower sides of the flange member are provided. A pair of or more vertically movable flange guide roller devices that abut the edge portion and align the flange member with the side edge portion of the positioned web member are provided. The flange member centered by these flange guide roller devices is pressed and held by one side edge portion of the web member in cooperation with the web guide roller device of the conveying section and the other edge portion of the web member is held. A pair of horizontally movable web guide roller devices, which are arranged to face each other, are provided in the conveyance section, and The drive guide roller device, the flange guide roller device, and the web guide roller device that hold the lower edge portion of the jig member are configured to be operated along the side edge shape of the web member and / or the flange member. Assembly welding equipment for H-section steel with cross-section welding.