JPH05185222A - Welding equipment for pillar steel-frame joint part - Google Patents

Abstract

PURPOSE:To provide the welding equipment for the pillar steel-frame joint part capable of performing welding of the pillar steel-frame joint part with full automation and capable of improving workability and welding precision. CONSTITUTION:Plural rotary jigs 2 to support a pillar steel frame A are set up at a specified interval, plural traveling cranes 1 are set up freely travelably along the setting-up direction of the rotary jigs 2 close to the rotary jigs 2, flexible horizontal beams 9 are provided projectingly horizontally in the direction of the rotary jigs 2 on the upper ends of these traveling cranes 1, plural suspended jigs 13 which are freely movable vertically are set up freely travelably along the traveling direction of the traveling cranes 1 on the tips of these horizontal beams 9 and welding machines 3 to weld the joint part of the pillar steel frame A are mounted, respectively freely travelably in the direction to almost orthogonally cross the traveling direction of the traveling cranes 1 on these suspended jigs 13.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a welding apparatus for a column steel-frame joint portion which can perform welding of a column steel-frame joint portion attached to a column main body by completely automation.

[0002]

2. Description of the Related Art Generally, since the joint portion of a steel frame column has a complicated shape, welding is likely to be complicated and the movement of the welding torch is also likely to be complicated.

Conventionally, in the welding of the joint portion of this type, a welder manually carries out welding at each welding point while directly carrying the welding wire feeder and the welding torch, or a welding wire feeder, etc. Is placed on a simple swivel jib crane, and the welding work is carried out by approaching the welding point to some extent to save some labor.

[0004]

However, the former method often requires an unnatural posture for a long period of time, which is a heavy labor task. Further, in the latter method, there are many welding spots, and when the swivel range of the swivel jib crane is wide, the welding may be extremely difficult or may not be possible at all.

Further, in order to move the welding machine safely and smoothly by the turning method of the turning jib crane, it is necessary to pay particular attention, and there is a great safety problem in working alone. Further, in any case, since it requires a considerable amount of skill to operate the welding machine, it is inevitable that welding accuracy varies depending on the welder.

The present invention has been proposed in order to solve the above-mentioned conventional problems, and enables welding of a column steel frame joint portion to be performed almost completely automatically, thereby improving workability and welding accuracy. It is an object of the present invention to provide a welding device for a column steel-frame joint part that enables improvement and further safety construction.

[0007]

A welding apparatus for a column steel frame joint portion according to the present invention has a plurality of rotary jigs for supporting a column steel frame installed at predetermined intervals, and a plurality of rotary jigs near the rotary jig. The traveling crane is installed so that it can travel along the installation direction of the rotary jig, and an extendable horizontal beam is projected horizontally at the upper end of the traveling crane in the direction of the rotary jig. A plurality of lifting jigs that can move up and down are installed in the section so that they can run freely along the running direction of the traveling crane, and a welding machine for welding the steel frame joint to the hanging jig is installed in the running direction of the traveling crane. It is configured to be mounted so that it can travel in a direction substantially orthogonal to the above.

[0008]

1 is a perspective view of a welding device for a column steel frame joint portion according to the present invention, FIG. 2 is a perspective view of a main portion thereof, and FIG.
Is a front view thereof.

In the figure, reference numeral 1 is a traveling crane, 2 is a rotary jig for supporting a pillar steel frame A, 3 is a welding robot (hereinafter referred to as "welding machine"), and 4 is a welding machine for supplying electric power to the welding machine 3. Power source, 5 is a welding machine controller for controlling the welding machine 3, and reference numeral 6 is a pail pack for continuously supplying the welding wire to the welding machine 3.
24 is a wire feeder.

In principle, the traveling crane 1 is installed on a wall of a building, and a rail 7 laid on the floor is supported by a guide rail 8 provided on the wall so that the traveling crane 1 does not fall and a motor, etc. It is configured to be able to freely travel back and forth by the power of.

A horizontal beam 9 is provided at the upper end of the traveling crane 1.
Is horizontally projected right next to the rotating jig 2. The horizontal beam 9 is composed of a fixed beam 9a and a movable beam 9b,
Both are formed with a certain width along the traveling direction of the traveling crane 1.

The fixed beam 9a is integrally fixed to the upper end of the traveling crane 1 and is supported by tension members 10 and 10 so that the front end does not bend under the weight.

The movable beam 9b is installed below the fixed beam 9a, and the traveling crane 1 is driven by the power of a motor or the like.
It is configured to be freely slidable in a direction substantially orthogonal to the traveling direction of the. Therefore, the horizontal beam 9 is configured so that it can be freely expanded and contracted above the rotating machine 2 by remote control.

On the lower side of the tip of the movable beam 9b, the rail 11
Are installed along the traveling direction of the traveling crane 1.

Two electric trolleys 12 and 12 are installed on the rail 11, and hanging jigs 13 and 13 are respectively hung up and down by an electric chain block 14 on the electric trolleys 12 and 12. Welding machines 3 are installed in each of them (see Figures 4 and 5).

The electric trolley 12 can be freely moved along the traveling direction of the traveling crane 1 while the hanging jig 13 is being hung by a remote operation, and the hanging jig 13 can also be freely moved by a remote operation. It is configured to be able to move up and down.

The hanging jig 13 is formed in a rectangular frame shape wide in a direction substantially orthogonal to the traveling direction of the traveling crane 1, and a strip-shaped track plate 15 is provided on a bottom plate portion 13a of the hanging jig 13 in the width direction of the hanging jig 13. The track plate 15 has guide rails 15a, 15a at the left and right edges of the track plate 15. A rack 16 is laid in a substantially central portion of the track plate 15 continuously in a direction substantially orthogonal to the traveling direction of the traveling crane 1 (see FIG. 6).

The welder 3 is a welder capable of performing multi-layer welding, which is particularly suitable for welding steel columns and joints, and a welding torch is provided on the bottom plate portions 13a and 13a of the left and right hanging jigs 13 and 13. 3a, 3a are mounted in a state in which the joint portion of the pillar steel frame A is directed.

Further, the welding machine 3 is provided with a pinion 17 that meshes with the rack 16 and guide rollers 18 and 18 that can slide on the left and right edge portions of the left and right guide rails 15a and 15a.

The welder 3 uses the pinion rack system, and is extremely smooth and elaborate without causing any rolling, vibration, rattling or the like on the track plate 15 which would deteriorate welding accuracy. It is capable of traveling and can be accurately stopped at the set position without causing slippage.

The bottom of the bottom plate portion 13a of the hanging jig 13 is held by the welding machine 3 while the joint portion of the pillar steel frame A is being welded.
Clamps 19, 19 for fixing 13 to the column steel frame A so as not to move are attached.

As the clamps 19, 19, for example, a magnet type is used to adsorb to the side surface of the column steel frame A, and the hanging jig 13 is used so that it can freely cope with the column steel frames A having different diameters.
It is configured so that it can freely move in the width direction (see FIG. 4).

At the upper end of the hanging jig 13, a pillar steel frame A
The steady jigs 20 and 20 are attached to prevent the rolling jig 13 from rolling laterally before being fixed to. The welding machine power source 4, the welding machine controller 5, the pail pack 6, and the wire feeding device 24 are all mounted on the traveling crane 1.

Of various wiring cables such as a power cable and a control cable drawn out from these devices, a portion which does not hinder the movement of the horizontal beam 9 (in particular, a portion which does not move). Is stored in the cable rack 21, and the portion (the portion that accompanies movement) that needs to follow the movement of the horizontal beam 9 and the like is stored in the cable hose support guide device (hereinafter referred to as "cable bear 22").

With the above construction, the traveling torch 3, horizontal beam 9, suspension jig 13 and welding machine 3 are moved appropriately so that the welding torches 3a, 3a of the left and right welding machines 3, 3 are moved. Since it can be moved in any of the front-back, left-right, and up-down directions and can be turned in any direction, the rotating jig 2 is appropriately turned to keep the pillar steel frame A in the best welding position. Only by doing so, it is possible to reliably perform the welding of the joint portion of the pillar steel frame A having a complicated shape. Further, by automating all of them, it is possible to perform welding very efficiently by one person using a plurality of welding machines 3, 3 without requiring special skill.

Further, by installing a plurality of traveling cranes 1 having such a structure, it is possible to simultaneously perform a welding operation for a plurality of pillar steel frames A in parallel (see FIG. 7).

In FIG. 3, reference numeral 23 is a semi-automatic welding device, which is a welding wire pail pack for continuously supplying a welding rod for welding the connection web portion of the pillar steel frame A.
6a and welding wire feeder 24a are installed.

The semi-automatic welding device 23 is constructed so that it can freely travel on the rail 7 in the installation direction of the rotary jig 2 by remote control, similarly to the traveling crane 1.

[0029]

Since the present invention is constructed as described above, it has the following effects.

Since the welding torch of the welding machine can be moved in any of the front-back, left-right, and up-down directions, and can be oriented in any direction,
The parts that cannot be welded locally are completely eliminated. Therefore, by simply rotating the rotating jig and maintaining the welding position of the column steel frame supported by the rotating jig in the optimum state, the column with a complicated shape can be It is possible to reliably weld the joint portion of the steel frame.

Further, by automating all operations of the traveling crane, the horizontal beam, the hanging jig, and the welding machine, it is possible to perform welding efficiently and safely without requiring a skilled worker.

Further, since a traveling crane equipped with a welding machine can be used to move and weld the joints of a plurality of pillar steel frames arranged side by side, workability is significantly improved.

[0033]

[Brief description of drawings]

FIG. 1 is a perspective view of a welding device for a column steel frame joint portion according to the present invention.

FIG. 2 is a perspective view of a main part of the welding device for the column steel frame joint shown in FIG.

FIG. 3 is a front view of the welding device for the column steel frame joint portion shown in FIG. 1.

FIG. 4 is a front view of a hanging jig of the welding device for the column steel frame joint portion shown in FIG. 1.

FIG. 5 is a side view of a hanging jig of the welding device for the column steel frame joint portion shown in FIG. 1.

6 is a sectional view taken along the line aa in FIG.

FIG. 7 is a plan view showing the arrangement of a welding device and a rotating jig for the column steel frame joint portion shown in FIG. 1.

[Explanation of symbols] 1 ... traveling crane, 2 ... rotating jig, 3 ... welding machine, 4 ... welding machine power supply, 5 ... welding machine controller, 6,6a ... pail pack, 7 ... rail, 8 ... guide rail , 9 ... Horizontal beam, 10 ... Tensile material, 11 ... Rail, 12 ... Electric trolley,
13 ... Hanging jig, 14 ... Electric chain block, 15 ... Orbital plate, 16 ... Rack, 17 ... Pinion, 18 ... Guide roller,
19 ... Clamp, 20 ... Steady metal fitting, 21 ... Cable rack, 22 ... Cable carrier, 23 ... Semi-automatic welding device, 24, 24a
… Welding wire feeder.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hisahiro Onoue 3-4-5 Toyosu, Koto-ku, Tokyo Incorporated company Tomoeumi Giken (72) Inventor Kano Tokumura 3-4-5 Toyosu, Koto-ku, Tokyo Incorporated at Tomoe-Gumi Giken Co., Ltd. (72) Inventor Kazuhiro Saito 3-4-5 Toyosu, Koto-ku, Tokyo Incorporated Tomoe-Gumi Giken

Claims (1)

[Claims] 1. A plurality of rotating jigs for supporting a pillar steel frame are installed at predetermined intervals, and a plurality of traveling cranes are installed near the rotating jigs so that they can travel freely along the installation direction of the rotating jigs. Then, an extendable horizontal beam is projected horizontally on the upper end of the traveling crane in the direction of the rotating jig, and a plurality of lifting jigs that can be raised and lowered are attached to the tip of the horizontal beam in the traveling direction of the traveling crane. And a welding machine for welding the steel frame joint portion to the hanging jig so as to travel in a direction substantially orthogonal to the traveling direction of the traveling crane, respectively. Welding equipment for steel column joints.