JPH08118019A - Steel column welding equipment - Google Patents

Abstract

PURPOSE: To provide a steel column feeding equipment excellent in the durability and safety and capable of improving the execution efficiency. CONSTITUTION: A rail 4 which is circumferentially provided in the vicinity of a connection part of a steel column 1, a freely traveling equipment 11 on the rail 4, a welding equipment body 12 to be vertically provided on the traveling equipment 11, and an auxiliary jig 20 to suspend cables 11a, 12b of the traveling equipment 11 and the welding equipment body 12 are provided. The jig 20 consists of an angle member 21 provided on the steel column 1, a base plate 22 to be fitted to the angle member 21, a stopper which is provided on a stopper fitting plate 25 fixed to the base plate 22 through a supporting plate 24 and attached/detached to/from the angle member 21, an arm 23 which is horizontally and projectingly provided on the base plate 22, and a cable suspending part 27 which is provided at the tip part of the arm 23 and suspends the cables 11a, 12b.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a steel frame column welding apparatus capable of suitably welding a steel frame column.

[0002]

2. Description of the Related Art Conventionally, when a steel frame column is used in various buildings, the welding work in the column construction work involves building a scaffold at the welding position of the column, and using this scaffold, the worker uses the steel frame column. It was done by welding connection.

However, in the case of such a steel frame welding operation,
There is a problem in that it takes a lot of time to assemble the scaffolding and the welding worker must work at a high place, so that a great amount of labor is required for safety management.

Therefore, in recent years, there has been proposed a steel frame pillar welding apparatus provided with rails arranged around a portion to be welded of vertically connected steel frame columns and a welding robot capable of traveling on the rails. There is. 6 and 7 are diagrams showing an example of a steel-column welding device, and a conventional steel-column welding device will be described in detail with reference to FIGS. That is, the steel column welding device 200 is
As shown in FIG. 6, a plurality of brackets 102 provided on the outer peripheral surface of the steel frame column 101 are provided.
2, the rail 104 via the rail base 103,
It is provided along the outer peripheral surface of the steel column 101. A welding robot 110 is provided on the rail 104 so that the welding robot 110 can travel on the rail 104.
A traveling unit 111 that can travel freely on the rail 104, and a traveling unit 1
11 and a welded portion 112 vertically provided. Therefore, according to this steel-column welding device 200, since the worker does not have to directly perform the welding work, it is possible to safely perform the welding at a high place, and it is not necessary to assemble the scaffolding. The construction efficiency can be improved.

Further, the various cables 1 of the welding robot 110 are attached to the bracket 102 of the steel column welding device 200.
An interposing jig 120 interposing 13 is provided. The interposing jig 120 is provided on the bracket 102 so as to be rotatable around a vertical axis, and a pillar 121 and a pillar 121.
The magnet type holding member 122 that is provided in the central portion of the
The first arm 123 shown in FIG. 7 horizontally connected to the upper end of the column 121, the second arm 124 horizontally bendably connected to the tip of the first arm 123, and various cables 113. It is configured by a suspension support member 125 provided at the tip of the second arm 124 so as to be suspended. Therefore, various cables 113 of the welding robot 110
Even if the welding robot 110 moves on the rail 104, the cable 113 does not interfere with the welding robot 110 or interfere with its running or welding even if the welding robot 110 moves on the rail 104. Can be

[0006]

However, the steel frame welding apparatus 200 as described above has the following problems with the interposition jig 120. 1) Magnet type holding member 122 holding the column 121
Has a low durability because it easily loses its adsorption force due to welding heat and dirt. 2) The first arm 123 is rotatable in the horizontal direction together with the support column 121, and the second arm 124 is the first arm 12.
Since the bending jig can be bent horizontally with respect to 3, the first and second arms 123, 124 of the interposing jig 120 can be easily attached.
Due to this, there is a risk of injury to the installer. 3) In order to secure the bending range of the first arm 123 and the second arm 124, the windbreak sheet provided around the steel frame column 101 must be provided so as to surround it wider than usual, so that the construction efficiency of the steel frame column 101 can be improved. Cause decline. 4) Since the interposition jig 120 is dragged by the cable 113 on the floor, the cable 113 may be caught by an obstacle on the floor. Then, the traveling of the welding robot 110 will be hindered, and therefore work must be performed to remove obstacles. Therefore, similarly to the above, the construction efficiency of the steel column 101 is reduced.

In view of the above circumstances, it is an object of the present invention to provide a steel column welding device which has high durability and safety and can further improve the work efficiency.

[0008]

According to a first aspect of the present invention, there is provided a steel column welding apparatus, in which a rail arranged around a connecting portion of vertically connected steel columns, and a traveling traveling freely on the rail. A steel column welding apparatus comprising: means, a welding means provided on the traveling means, and an interposing means for suspending the cables of the traveling means and the welding means to intervene the cables, wherein the interposing means is A hooking member provided on a side surface of the steel column, a base portion hooked to the hooking member, a fixing means provided on the base member, which is engageable with and disengageable from the hooking member, and horizontal to the base portion. It is characterized by comprising an arm portion fixedly provided so as to project in a direction, and a suspension support portion provided at a tip end portion of the arm portion and suspending and supporting the cable.

According to a second aspect of the present invention, there is provided a steel column welding device according to the first aspect, wherein the suspension support portion of the interposing means is rotatably provided horizontally with respect to the arm portion. It is characterized by being

According to a third aspect of the present invention, there is provided a steel frame welding apparatus, in which rails are provided around a connecting portion of vertically connected steel columns, traveling means that can travel on the rail, and the traveling means. A steel column welding apparatus comprising: welding means provided on the traveling means; and a traveling means and an interposing means for suspending a cable of the welding means to interpose the cable, wherein the interposing means is provided on a side surface of the steel column. A hooking member provided, a base portion that is hooked on the hooking member, a fixing means that is provided on the base member and that can be attached to and detached from the hooking member, and rotatably connected to the base portion in a horizontal direction. And a suspension support portion provided at the tip of the arm portion for suspending and supporting the cable.

According to a fourth aspect of the present invention, there is provided a steel frame column welding device according to the third aspect, wherein the suspension support portion of the interposing means is rotatably provided horizontally with respect to the arm portion. It is characterized by being

[0012]

According to the steel frame column welding apparatus of the present invention, the interposing means is provided on the side face of the steel frame column in advance, and after the base part is hooked on the hooking member, it is provided on the base part. By attaching the fixing means provided to the hanging member, it is possible to easily, quickly and firmly attach to the steel column without using the magnet type holding member as in the conventional case.

Further, in the interposing means, the arm portion does not rotate or bend at a plurality of points as in the conventional case.
At the time of mounting, it can be easily handled.

Further, the intervening means does not need to be provided so as to enclose the windbreak sheet provided around the steel column more widely than usual since the arm does not bend or stretch as in the conventional case.

Further, since the arm portion of the interposition means is fixed, the cable is not dragged, so that the conventional work of removing obstacles on the floor can be omitted.

According to the steel column welding device of the second aspect,
Since the suspension fulcrum is rotatably provided horizontally with respect to the arm, it is possible to prevent an unreasonable force from acting on the cable at the suspension fulcrum when the welding means moves on the rail together with the traveling means.

According to the steel column welding device of the third aspect,
The interposing means is such that a hooking member is previously provided on the side surface of the steel column, the base is hooked on the hooking member, and then the fixing means provided on the base is hooked on the hooking member. Even without using the magnet type holding member as described above, it can be easily, quickly and firmly attached to the steel frame column.

Further, in the interposing means, the arm portion does not rotate or bend at a plurality of points as in the conventional case,
At the time of mounting, it can be easily handled.

Further, the intervening means does not need to be provided so as to enclose the windbreak sheet provided around the steel column more widely than usual since the arm does not bend or stretch as in the conventional case.

Further, since the arm portion does not rotate or bend at a plurality of places, the movement of the cable on the floor can be reduced. Therefore, the conventional work of removing obstacles on the floor can be reduced.

Further, since the arm portion is rotatably connected, the interposition of the cable can be made smooth. Therefore, the frequency of failure can be reduced.

According to the steel column welding device of the fourth aspect,
Since the suspension fulcrum is rotatably provided horizontally with respect to the arm, it is possible to prevent an unreasonable force from acting on the cable at the suspension fulcrum when the welding means moves on the rail together with the traveling means.

[0023]

Embodiments of the present invention will be described below with reference to the drawings. 1, 2 and 3 are views showing a first embodiment of a steel column welding device of the present invention, and a steel column welding device 100A is a steel column that is vertically arranged as shown in FIG. 1 has a plurality of brackets 2 welded to the outer peripheral surface of the lower end connecting portion so as to be provided in advance, and the bracket 2 has a mounting plate 2a protruding in the horizontal direction.

An annular rail 4 is attached to the mounting plate 2a of the bracket 2 via a plurality of rail bases 3 so as to surround the steel frame column 1. More specifically, the rail 4 is formed by connecting a plurality of rail pieces 4a as shown in FIG. 2, and the lower surface of each rail piece 4a has a U-shape as shown in FIG. A rail base 3 is provided. Then, by sandwiching the rail base 3 on the mounting plate 2a of the bracket 2, the rail piece 4a
Are attached to brackets 2 and are respectively coupled to form rails 4. Further, each rail piece 4a is fixed to the bracket 2 by screwing a fixing screw 3a provided on the rail base 3 toward the mounting plate 2a.

A welding robot 10 is provided on the rail 4 so as to run along the rail 4. That is, the welding robot 10 includes a traveling device 11 that can travel on the rail 4 freely.
And a welding device main body 12 that is hung from the traveling device 11 below the rail 4, and the welding device main body 12 is provided.
Is a welding torch 1 provided toward the connecting portion of the steel column 1.
2a.

On the side surface (that is, the outer peripheral surface) of the steel column 1, a traveling cable 11a such as an electric cable for controlling the traveling device 11 or a power source, and an electric cable for controlling the welding device body 12 or a power source are provided. Alternatively, an interposing jig 20 for suspending the welding cable 12b such as a welding wire and interposing the two cables 11a and 12b is provided.

That is, as shown in FIG. 3, the interposition jig 20 has an angle member 21 pre-welded to the side surface of the steel column 1, and the angle member 21 extends vertically. The L-shaped piece 21a is provided so as to be welded so as to be orthogonal to the side surface of the steel column 1, and the other piece 21b is
It is provided in parallel with the side surface with a space.
Further, a pair of angle members 21 are provided so that the ends of the other pieces 21b face each other in the horizontal direction.

Further, the interposition jig 20 has a substrate 22 that is in contact with the outer surface of the other piece 21b of the angle member 21, and the other piece 21 of the angle member 21 is provided at the upper end of the substrate 22.
A hooking portion 22a hooked on the upper end of b is formed.

The substrate 22 has an arm 2 made of a square pipe.
3 is provided so as to project in the horizontal direction, and the arm 2 is provided from the substrate 22.
The arm 23 is fixed to the substrate 22 by two triangular attachment plates 24 protruding so as to sandwich 3 therebetween. A stopper mounting plate 25 is provided at the lower end of the mounting plate 24 so as to close the space between the two mounting plates 24, and a female screw 25 a is formed in the lower center of the stopper mounting plate 25.

The stopper 2 is attached to the stopper mounting plate 25.
6 is provided, that is, the stopper 26 is a base plate 26a provided so as to face the stopper mounting plate 25, and a stopper mounting of the end of the base plate 26a on the tip end side of the arm 23. The abutting portion 26b protruding from the plate 25 side and abutting against the stopper mounting plate 25 and the end of the base plate 26a on the angle member 21 side are provided on the stopper mounting plate 25 side from the lower end of the angle member 21 to the angle member 21. The locking projection 26c provided so as to be inserted between the other piece 21b and the steel column 1 and the screw hole provided in the central portion of the base plate 26a are threadedly penetrated, and the tip end thereof is attached with a stopper. The plate 25 includes a male screw 26d screwed into the female screw 25a and a handle 26e provided at the base end of the male screw 26d.

A pin hole 23a penetrating in the vertical direction is formed at the tip of the arm 23.
A cable suspension support 27 is provided below a.
That is, the cable suspension support portion 27 includes a horizontal plate 27b having a pin hole 27a provided directly below the pin hole 23a in the center, and a horizontal plate 27b.
a bolt 27g and a nut 27h that rotatably connect the horizontal plate 27b to the tip of the arm 23 by penetrating the pin hole 27a of b and the pin hole 23a of the arm 23 with a spacer, a washer, etc., and the horizontal plate 27b. Vertically extending plates 27c and 27c which are vertically provided from both ends, a projecting plate 27d which is horizontally provided at the lower ends of the vertically extending plates 27c and 27c, and an upward convex arc shape are formed along the circular arc. Cable hanging groove 27e
Is formed, the top is fixed to the vertical plates 27c, 27c,
Both ends are fixed to the projecting plate 27d, provided at both ends,
It is composed of a traveling cable 11a of the welding robot 10 hung in the cable hanging groove 27e and cable bands 27f and 27f for fixing the welding cable 12b.

Further, as shown in FIG. 1, the welding robot 1
0 and the cable 11 for traveling between the cable suspension support 27
a and the welding cable 12b are used by the welding robot 10
However, it has a bend enough to move to the back side of the steel frame column 1 on the cable suspension support 27 side.

Since the steel-frame pillar welding apparatus 100A and the like have the above-mentioned structure, the rail 2 can be easily and quickly connected to the bracket 2 by connecting the rail base 3 to the bracket 2 by providing the bracket 2 on the steel-frame pillar 1 in advance. It can be arranged around the steel column 1. Then, the welding robot 10 is installed on the rail 4. Then, the welding robot 10 can travel around the steel column 1 by the traveling device 11, and the welding device main body 12 can weld the connection portion of the steel column 1, so that the welding of the steel column 1 is performed. Can be performed easily, quickly and safely. Further, since the worker does not have to directly perform the welding work, welding at a high place can be performed safely, and since it is not necessary to assemble a scaffold, the construction efficiency of the steel frame column 1 can be improved.

In the interposition jig 20, as shown in FIG. 3, an angle member 21 is provided in advance on a side surface of the steel frame pillar 1, and the hook portion 22a of the substrate 22 is hooked on the angle member 21. Can be installed easily and quickly.

Then, the attachment plate 24 and the stopper mounting plate 25
The handle 26e of the stopper 26 provided on the base plate 22 is rotated to move the stopper 26 to the stopper mounting plate 25 side, so that the locking projection 26c of the stopper 26 is moved from the lower end of the angle member 21 to the angle member 21. The angle member 21 is inserted between the other piece 21b and the steel column 1.
The locking projection 26c is locked to the lower end of the. Then, the interposition jig 20 can be fixed to the steel frame pillar 1.

Therefore, the interposition jig 20 can be easily, quickly and firmly attached to the steel frame pillar 1 without using a magnet type holding member as in the conventional case, so that the durability can be improved.

Further, in the interposition jig 20, since the arm 23 does not rotate or bend at a plurality of places as in the conventional case, the handling can be facilitated at the time of mounting. Therefore, work safety can be improved.

Further, in the interposition jig 20, unlike the conventional case, the arm 23 does not bend and stretch, so that it is necessary to provide the windbreak sheet 30 provided around the steel frame column 1 shown in FIG. There is no. Therefore, the construction efficiency can be improved.

When the welding robot 10 moves on the rail 4, the interposing jig 20 suspends various cables 11a and 12b of the welding robot 10, so that the cables 11a and 12b are welded to the welding robot 10. It is possible to prevent the traveling or welding from being interfered with by interfering with 10, for example.

Since the arm 23 is fixed to the interposition jig 20, the cables 11a and 12b are not dragged. Therefore, it is possible to omit the conventional work of removing the obstacle on the floor.

Further, the cable suspension support 27 is connected to the arm 23.
The welding robot 1
It is possible to prevent an unreasonable force from acting on the cables 11a and 12b in the cable suspension support portion 27 when 0 moves on the rail 4. Therefore, the traveling means and the welding means can be moved smoothly.

Therefore, the construction efficiency can be further improved.

FIG. 4 and FIG. 5 are views showing a second embodiment of the steel frame column welding apparatus of the present invention, which is a steel frame column welding apparatus 100B.
As shown in FIG. 4, the arm 23, which is fixed in the interposition jig 20 of the steel frame column welding apparatus 100A of the first embodiment, is fixed.
The connection jig 40 is provided so that the arm 23 is connected so that the arm 23 can rotate in the horizontal direction with respect to the board 22.

That is, on the substrate 22, as shown in FIG.
Two connecting plates 41, 41 are vertically arranged so as to project horizontally. Each of the connecting plates 41, 41 has a pin hole 41a, 41a penetrating in the vertical direction at the end thereof. The substrate 22 of the arm 23.
The upper and lower surfaces of the end portion on the side are connected plates 42, 42, respectively.
Are provided so as to overlap with the connection plates 41, 41 on the substrate 22 side, respectively. Also, the connection plate 4 on the arm 23 side
Pin holes 42a, 42a, which communicate with the pin holes 41a, 41a of the connection plates 41, 41 on the side of the board 22, are formed through the upper and lower sides 2, 42, respectively. Connection plate 41 on the side of the substrate 22,
Bolts 43 are provided in the pin holes 41a and 41a of 41 and the pin holes 42a and 42a of the connecting plates 42 and 42 on the arm 23 side so as to penetrate from the lower side to the upper side. 44 is screwed on. Spacers 45 are provided between the connection plates 41 and 42, respectively.

On the connection plate 41 on the lower side of the substrate 22, two triangular attachment plates 46 are provided so as to project from the substrate 22 so that the connection plate 41 is sandwiched between the upper ends thereof. Is
A stopper mounting plate 47 is provided so as to close the space between the two attachment plates 46. On the stopper mounting plate 47,
Similar to the first embodiment, a female screw 47a is formed, and a male screw 26d of the stopper 26 is screwed onto the female screw 47a.

Therefore, in the second embodiment, since the arm 23 is rotatably connected, the running cable 11a and the welding cable 12b can be smoothly interpolated. That is, since the frequency of failure can be reduced, the construction efficiency can be further enhanced.

Further, in the second embodiment, the arm 2
Since 3 is rotatable, the traveling cable 11a and the welding cable 12b are dragged on the floor with the movement of the arm 23. Since the movement can be reduced, it is possible to reduce the conventional work of removing obstacles on the floor. Therefore, the construction efficiency can be improved.

The effects of the other configurations are the same as those of the first embodiment.

In the first embodiment, the steel pillar 1 is a round pillar and the rail 4 is circular. However, when the steel pillar 1 is a prism, the rail 4 is the outer circumference of the steel pillar 1. Of course, it may be formed in a quadrangle along the surface.
The same applies to the second embodiment.

[0050]

According to the steel frame column welding apparatus of the first aspect of the present invention, it is possible to easily, quickly and firmly attach to the steel frame column without using a magnet type holding member as in the conventional case, so that it is durable. It is possible to improve the sex.

Further, since the handling can be facilitated at the time of mounting, the safety of work can be improved.

Further, the intervening means does not need to be provided so as to enclose the windshield sheet provided around the steel column wider than usual, and it is not necessary to perform work for removing obstacles on the floor, unlike the conventional case. The construction efficiency can be further improved.

According to the steel column welding device of the second aspect,
When the welding means moves along with the traveling means on the rail, it is possible to prevent an unreasonable force from acting on the cable in the suspension support portion, so that the traveling means and the welding means can move smoothly. Therefore, the construction efficiency can be further improved.

According to the steel column welding device of the third aspect,
Even if the magnet type holding member is not used as in the conventional case, the attachment to the steel frame column can be performed easily, quickly and firmly, so that the durability can be improved.

In addition, since the handling can be facilitated at the time of mounting, the work safety can be improved.

Further, the intervening means does not need to be provided so as to enclose the windbreak sheet provided around the steel column more widely than usual as in the conventional case, and the work for removing obstacles on the floor can be reduced. Moreover, since the frequency of failure can be reduced, the construction efficiency can be improved.

According to the steel column welding device of the fourth aspect,
When the welding means moves along with the traveling means on the rail, it is possible to prevent an unreasonable force from acting on the cable in the suspension support portion, so that the traveling means and the welding means can move smoothly. Therefore, the construction efficiency can be further improved.

[Brief description of drawings]

FIG. 1 is a front view showing a first embodiment of a steel column welding device of the present invention.

FIG. 2 is a plan view of the steel frame welding apparatus of FIG.

FIG. 3 is an enlarged view showing an interposition jig of the steel column welding device of FIG. 1.

FIG. 4 is a front view showing a second embodiment of the steel column welding device of the present invention.

5 is an enlarged view showing an interposition jig of the steel frame column welding device in FIG. 4. FIG.

FIG. 6 is a front view showing an example of a conventional steel column welding device.

FIG. 7 is a plan view of the steel frame welding apparatus of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Steel column 4 ... Rail 11 ... Traveling device (traveling means) 11a ... Traveling cable (cable) 12 ... Welding device main body (welding means) 12b ... Welding cable (cable) 20 ... Interposition jig (interpolation means) 21 ... Angle material (hanging member) 22 ... Substrate (base part) 23 ... Arm (arm part) 24 ... Addition plate (base part) 25 ... Stopper mounting plate (base part) 26 ... Stopper (fixing means) 27 ... Cable suspension support part (hanging) Support part 40 ... Interposition jig (interposition means) 41 ... Connection plate (base part) 42 ... Connection plate (arm part) 46 ... Addition plate (base part) 47 ... Stopper mounting plate (base part) 100A ... Steel frame of the first embodiment Column welding device 100B ... Steel frame column welding device of the second embodiment

Front page continuation (72) Inventor Shingo Harada 4-6-22 Kannon Shinmachi, Nishi-ku, Hiroshima City, Hiroshima Prefecture Mitsubishi Heavy Industries, Ltd. Hiroshima Research Laboratory (72) Inventor Satoshi Uemura 4-622 Kannon Shinmachi, Nishi-ku, Hiroshima City, Hiroshima Prefecture No. Mitsubishi Heavy Industries Ltd. Hiroshima Works (72) Inventor Nobuhiro Okuyama 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Construction Co., Ltd.

Claims (4)

[Claims] 1. A rail arranged around a connecting portion of vertically connected steel columns, a traveling means capable of traveling on the rail, a welding means provided on the traveling means, and the traveling means. A steel frame pillar welding apparatus comprising: means and an interposing means for suspending a cable of the welding means to interpose the cable, wherein the interposing means is a hooking member provided on a side surface of the steel frame pillar, A base portion that is attached to the attachment member, and provided on the base portion,
Fixing means that can be attached / detached to / from the hanging member, an arm portion fixed to the base portion so as to project in the horizontal direction, and a suspension support portion provided at the tip of the arm portion and suspending and supporting the cable. A steel-column welding device, comprising: 2. The steel-frame column welding apparatus according to claim 1, wherein the suspension support portion of the interposing means is rotatably provided horizontally with respect to the arm portion. apparatus. 3. A rail arranged around a connecting portion of vertically connected steel columns, traveling means capable of traveling on the rail, welding means provided on the traveling means, and the traveling means. A steel frame pillar welding apparatus comprising: means and an interposing means for suspending a cable of the welding means to interpose the cable, wherein the interposing means is a hooking member provided on a side surface of the steel frame pillar, A base portion that is attached to the attachment member, and provided on the base portion,
A fixing means that can be attached to and detached from the hanging member, an arm portion that is horizontally rotatably connected to the base portion, and a suspension support portion that is provided at the tip of the arm portion and that suspends and supports the cable. An apparatus for welding a steel frame column, comprising: 4. The steel-column welding apparatus according to claim 3, wherein the suspending support portion of the interposing means is rotatably provided horizontally with respect to the arm portion. apparatus.