JPH0857689A - Device for correcting dislocation - Google Patents

Abstract

PURPOSE: To facilitate a treatment after normal welding by making this device attachable and detachable to and from flanges in order to correct the dislocation between both flanges and to easily and exactly execute a welding operation by preventing the arrangement of obstructive objects atop the welding part. CONSTITUTION: A setting block 16 is fitted to the side end of the flange 14 of one steel frame beam 12. The one end of a jack block 18 is arranged on the lower side of this setting block 16 and the other end is arranged across the flange of the other steel frame beam 12a. First and second bolts 28, 30 inserted into the jack block 18 are screwed into first and second screw holes formed on the rear surface of the setting block 16. The setting block 16 is fixed to the flange 14 by the first bolt 28 and the jack block 18 is fixed to the setting block 16 by the second bolt 30. The other end of the jack block 18 is provided with a small-sized screw jack 32 for pressing the other flange 14a.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a misalignment corrector used for welding flanges of a steel beam to correct misalignment between the flanges to be welded.

[0002]

2. Description of the Related Art Generally, as shown in FIG.
When a is to be welded on site, a groove inspection between the flanges 3 and 3a is performed after the web 2 is fully bolted. At this time, for example, when the angle θ between the one flange 3 and the web 2 is not a right angle, the flanges 3 to be welded to each other
Misregistration (step) occurs between 3a.

When such misregistration occurs, a step is present at the joint between the flanges 3 and 3a,
These flanges 3 and 3a cannot be welded to each other. Therefore, conventionally, as a means for correcting misalignment, as shown in FIG.
One end of a plate 4 having an appropriate shape straddling a is welded to the upper surface of the other flange 3a, and a wedge 5 is driven between the other end of the plate 4 and the one flange 3. ing. Then, one of the flanges 3 is pushed down by driving the wedge 5, so that the groove heights of the flange 3 and the other flange 3a are corrected to be parallel.

[0004]

However, in the conventional means for correcting the misalignment at the time of welding the steel beam, since the plate 4 is welded to the upper surface of the other flange 3a, the flange is not welded. It is necessary to correct the gaps between 3 and 3a and weld them, and then cut the plate 4 from the flange 3a to finish the surface. Therefore, the cutting work of the plate 4 and the surface finishing work by polishing are required, and the work of joining the flanges 3 and 3a becomes extremely difficult.

The plate 4 has the other flange 3
Since it is welded to the upper surface of a and is arranged so as to straddle one flange 3, the plate 4 is arranged above the welded portions of both flanges 3 and 3a. Therefore, the plate 4 becomes an obstacle when welding the flanges 3 and 3a,
There were various problems that the welding work could not be performed smoothly.

[0006] In view of the conventional problems, the present invention has a structure in which the flange can be detachably attached to simplify the processing after the main welding and to obstruct the upper surface of the welded portion in order to correct the misalignment between the flanges. An object of the present invention is to provide a misalignment corrector capable of preventing the disposition of various objects and easily and accurately performing a welding operation.

[0007]

In order to achieve the above object, the present invention is used when welding flanges butted against each other, and has a U-shaped cross section fitted to the side end portion of one flange. A setting block and a jack block whose one end is disposed below the setting block and whose other end is disposed across the other flange, and the flange extends on the lower surface of the jack block. A pair of screw holes are formed along the direction, bolt insertion holes are formed in the jack block corresponding to the pair of screw holes, and the respective bolts inserted from these bolt insertion holes are screwed into the screw holes. , Press the tip of one bolt against the bottom surface of the flange to fix the setting block and flange, and use the other bolt to set the setting block and jack block. And fixing the click, and configure by providing a jack for pressing the lower surface of the flange at the other end of the jack block.

[0008]

In the misalignment corrector of the present invention having the above construction, when a misalignment occurs between the flanges to be welded to each other, the setting block is fitted to the side end of the raised flange. Then, while the jack block is in contact with the lower side of this setting block, a pair of bolts inserted from the bolt insertion holes are screwed into the screw holes of the setting block, and one of the bolts fixes the setting block to the flange, Secure the jack block to the setting block with the other bolt. In this state, the setting block and the jack block are detachably attached to one flange. By pressing the lower surface of the other flange upward by the jack provided on the other end of the jack block, the lowered flange can be lifted upward and the misalignment between the two flanges can be corrected. With the misregistration corrected in this way, the joints of both flanges are welded from above. Then, after the flange is welded, the jack block and the setting block can be easily removed from the flange by loosening the jack and loosening the bolt fixing the setting block and the flange.

[0009]

Embodiments of the present invention will now be described in detail with reference to the accompanying drawings. 1 to 3 show an embodiment of a misregistration corrector according to the present invention, FIG. 1 is a front view showing a mounting state of the misalignment correcting device, and FIG. 2 is a plan view showing an installation state of the misalignment correcting device. 3 is an exploded perspective view showing a main part of a mounting portion of the misregistration corrector.

That is, the misregistration corrector 10 of this embodiment is used when the steel beams 12, 12a are butted against each other and welded together. As shown in FIGS. 1 and 2, one of the flanges 14 of one steel beam 12 is welded. Setting block 16 fitted to the side end
And one end (the left end in the drawing) is arranged below the setting block 16 and the other end (the right end in the drawing).
Is provided with a jack block 18 that is disposed so as to straddle the flange 14a of the other steel frame beam 12a.

As shown in FIG. 3, the setting block 16 has an upper surface 16a, a lower surface 16b, and a side surface 16c formed in a U-shaped cross section.
A space between the upper surface 16a and the lower surface 16b of 6 is loosely fitted to the side end portion of the flange 14. Also, the setting block 1
A pair of first screw holes 20 and second screw holes 22 are formed on the lower surface 16b of the No. 6 along the extending direction of the flange 14 (horizontal direction in the drawing). The first screw hole 20 is formed on the side away from the other steel beam 12a, while the second screw hole 22 is formed.
Is formed on the side closer to the steel beam 12a.

The jack block 18 is formed in a T-shape in cross section by an upper surface 18a and a side surface 18b, and one end of the upper surface 18a is brought into contact with the lower surface 16b of the setting block 16. On the upper surface 18a of the jack block 18,
A first bolt insertion hole 24 and a second bolt insertion hole 26 are formed corresponding to the first and second screw holes 20 and 22, and the first bolt 28 inserted from the first bolt insertion hole 24 is inserted into the first bolt 28.
The second bolt 30 inserted into the second bolt insertion hole 26 is screwed into the screw hole 20, and the second bolt 30 is screwed into the second screw hole 22. The first bolt 28 is the second bolt 3
It is formed longer than 0, and the first bolt 28 is attached to the first screw hole 20.
The tip of the first bolt 28 is brought into contact with the lower surface of the flange 14 when it is screwed into the second bolt 30, and the axial length of the second bolt 30 is the thickness of the lower surface 16b of the setting block 16. Upper surface 18a of the jack block 18
Is formed to have a length substantially equal to the sum of the thickness and the thickness. The first and second screw holes 20 and 22 have the same diameter, and the first and second bolts 28 and 30 have the same diameter.

A small screw jack 32 as a jack is provided at the other end of the jack block 18. The small screw jack 32 has a side surface 18
The rotation of the handle 32a supported by b is transmitted to the jack shaft 32b via a reduction mechanism (not shown), and a large force can be applied to the ascent of the jack shaft 32.

In the present embodiment having the above construction, the flange 1 of the steel beam 12, 12a to be welded to each other is used.
When there is a misalignment between the flanges 14 and 14a, the misalignment between the flanges 14 and 14a is corrected by the misalignment corrector 10. In the present embodiment, it is assumed that the flange 14 side arranged on the left side in the drawing is high and the flange 14a side arranged on the right side is low.

First, the setting block 16 is fitted to the side end of the raised flange 14, and the jack block 18 is brought into contact with the lower side of the setting block 16. In this state, the bolt insertion hole 2 of the jack block 18
The first and second bolts 28, 30 inserted from 4, 26,
First and second screw holes 20 and 2 of the setting block 16
Screw to 2. Then, the setting block 16 can be fixed to the flange 14 by tightening the first bolt 28, and the jack block 18 can be fixed to the setting block 16 by tightening the second bolt 30. In this state, the setting block 16 and the jack block 1 can be fixed.
8 is detachably attached to the flange 14.

In this state, the small screw jack 32 provided at the tip of the jack block 18 is located below the other flange 14a, and the handle 32a of the small screw jack 32 is rotated by a jig such as a spanner to jack it. The shaft 32 is raised. Then, in the jack shaft 32, the jack block 18 has one flange 1
Since the lower surface of the other flange 14a is pressed while being fixed to 4, the flange 14a is forcibly pushed up,
It is possible to correct the misalignment by making the respective flanges 14 and 14a to be joined at the same height.

With the misalignment thus corrected, the backing metal 34 and the end tab 36 are attached between the flanges 14 and 14a, and the ends of the flanges 14 and 14a are welded to each other. After this welding, by loosening the jack 32 and the first bolt 28, the setting block 16 can be removed from the flange 14, and the misalignment corrector 10 can be easily removed. Therefore, after the completion of the main welding of the flanges 14 and 14a in this way, the misalignment corrector 10 can be removed by loosening the jack 32 and the first bolt 28. Processing work can be eliminated. Further, the misregistration corrector 10 can be used repeatedly.

Further, in this embodiment, the misregistration corrector 10 is used.
Are arranged so as to straddle the lower sides of the flanges 14 and 14a, and therefore the misalignment corrector 10 does not interfere when welding between the flanges 14 and 14a, so that the welding operation is simple and accurate. Can be done.

[0019]

As described above, in the misalignment corrector according to the present invention, the jack block is brought into contact with the lower side of the setting block fitted to the side end of the raised flange, and the jack block is abutted. Since a pair of bolts inserted through the bolt insertion holes formed in the above were screwed into the screw holes of the setting block, one bolt fixed the setting block to the flange, and the other bolt fixed the jack block to the setting block. The setting block and the jack block can be detachably attached to one flange. By pressing the lower surface of the other flange upward by the jack provided on the other end of the jack block, the lowered flange can be lifted upward and the misalignment between the two flanges can be corrected. Therefore, the misalignment corrector can be removed very easily after the main welding of both flanges, and the post-processing work after the main welding can be omitted. Further, since the misalignment corrector is arranged on the lower side of the flange, it is possible to perform the welding work easily and accurately without any hindrance of the corrector when welding between the flanges. Produce the effect.

[Brief description of drawings]

FIG. 1 is a front view of an attached state showing an embodiment of a misalignment corrector of the present invention.

FIG. 2 is a plan view of an attached state showing an embodiment of the misregistration corrector of the present invention.

FIG. 3 is an exploded perspective view of an essential part of a mounting portion showing an embodiment of a misalignment corrector of the present invention.

FIG. 4 is a perspective view showing a conventional misregistration correction means.

[Explanation of symbols]

10 miscorrection device 12, 12a
Steel beam 14, 14a Flange 16 Setting block 18 Jack block 20 First screw hole 22 Second screw hole 24 First bolt insertion hole 26 Second bolt insertion hole 28 First bolt 30 Second bolt 32 Small screw jack (jack)

Claims (1)

[Claims] 1. A setting block having a U-shaped cross section which is used when welding flanges to each other by welding, and one end portion of which is disposed below the setting block. And a jack block whose other end is disposed so as to straddle the other flange, and a pair of screw holes are formed on the lower surface of the jack block along the extending direction of the flange, and the jack block is formed. To form a bolt insertion hole corresponding to the pair of screw holes, screw the respective bolts inserted through the bolt insertion holes into the screw holes, and press one of the bolt tips against the bottom surface of the flange to set the setting block and the flange. And the bolt, fix the setting block and the jack block with the other bolt, and attach the flag to the other end of the jack block. Gap correction device, which is equipped with a jack that presses the underside of the connector.