JPH0646619Y2 - Remote control ceiling automatic welding equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to a remote-controlled automatic welding device, and more particularly to a remote-controlled automatic ceiling welding device equipped with a telescopic post and a welding robot rotated by a rotating device. .

[Conventional technology]

Conventionally, in the construction of large plants such as nuclear power plants,
For pipes, valves, etc. installed near the ceiling, hanging fittings or the like were embedded in the ceiling, or the hanging fittings were attached to the embedded metal by welding and lifted.

[Problems to be solved by the device]

However, in the above-mentioned conventional technique, since the ceiling is high, a scaffold is required, and since upward welding work is performed at a high place,
There was a problem that it was dangerous. The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a remote-controlled ceiling automatic welding apparatus capable of safely and easily performing upward welding.

[Means for Solving the Problems]

In order to achieve the above object, the present invention provides a telescopic post that is supported by an outrigger and can extend and contract with respect to a ceiling, a rotating device mounted on the elastic post, a welding robot attached to the rotating device, and the rotating device. And a holder for holding an object to be welded, which is rotatably arranged on the upper part of the device and is attached to the ceiling by welding.

Further, a spherical surface receiver for leveling can be provided on the top of the telescopic post.

[Action]

Hereinafter, the outline of the welding procedure of the object to be welded to the ceiling will be described, and the operation of the present invention will be described through this description.

Since the present invention is equipped with a holder for holding the workpiece,
First, the holder holds the object to be welded. Next, the telescopic post is extended with respect to the ceiling, and the object to be welded held by the holder is lightly brought into contact with a predetermined welding position on the ceiling. After that, the welding robot is operated via the rotating device to perform automatic welding work. As an example, the welding robot performs the main welding after temporarily attaching the object to be welded to a predetermined welding position on the ceiling by spot welding or the like.

Therefore, according to the present invention, the workpiece to be welded can be carried to the position where it is mounted on the ceiling with a simple structure, and then a series of upward welding operations such as position setting, temporary attachment, and main welding of the workpiece can be performed.
It can be performed safely, easily and smoothly without using scaffolding and without using other tools. Further, this makes it possible to reduce the construction cost and obtain a uniform finish.

In particular, since the present invention is provided with the holder for holding the object to be welded, there is a feature that the work of temporarily attaching the object to be welded to a predetermined welding position on the ceiling can be smoothly performed without a scaffold. is there.

Further, by providing a spherical support for leveling on the top of the telescopic post, leveling can be easily performed.

〔Example〕

Hereinafter, the details of the present invention will be described with reference to the embodiments shown in the drawings.

FIG. 1 is an overall configuration diagram showing an embodiment of a remote control ceiling automatic welding apparatus according to the present invention, FIG. 2 is a front view of a rotating device and a welding robot portion of the remote control ceiling automatic welding apparatus, and FIG. FIG. 4 is a side view of the rotating device and the welding robot, and FIG. 4 is an operation explanatory view of the rotating device and the welding robot.

As shown in FIG. 1, an outrigger 3 is arranged on a floor 1 via a jack 2, and a lower end portion of a telescopic post 4 is supported and fixed at a central portion position of the outrigger 3. Further, as is apparent from FIGS. 2 and 3, a spherical surface receiving surface 5 for leveling is provided at the upper end portion of the expanding / contracting post 4, and the expanding / contracting post 4 is provided via the spherical surface receiving member 5.
A welding robot 7 attached to the rotating device 6 is provided on the upper side. In addition, the spherical receiver 5 for leveling is
As shown in detail in FIG. 2, an outer cylinder 8 whose inner surface upper end 8a is formed into a spherical shape, and an inner cylinder 8 which is inserted and arranged in the outer cylinder 8 and whose upper end 9a fits to the inner surface upper end 8a. An inner cylinder 9 which is machined into a shape and is urged by a first spring 10 so that the upper end portion 9a always contacts the inner surface upper end portion 8a, and an interposing arrangement between the inner cylinder 9 and the outer cylinder 8. The second spring 11 is provided.

Further, the rotating device 6 is provided on the lower rotary table 12 arranged on the spherical surface receiving member 5, the rotation motor 13 attached to the lower rotary table 12, and the upper end side facing the lower rotary table 12. And an upper turntable 14 that is mounted.
Further, the welding robot 7 attached to the rotating device 6 includes an arm 15 and a welding torch 16. A hanging metal fitting holder 17 is provided on the upper rotary table 14 located above the rotating device 6, and a hanging metal fitting 19 attached to a ceiling 18 is fitted into the hanging metal fitting holder 17.
In FIG. 2, reference numeral 20 is an embedded metal item, and 21 is a weld bead.

Next, the operation of the remote-controlled automatic ceiling welding apparatus configured as described above will be described.

First, after setting the hanging bracket 19 in the hanging bracket holder 17 on the floor 1, the expansion / contraction post 4 is extended by hydraulic pressure or atmospheric pressure, and the hanging bracket 19 is lightly attached to the embedded hardware 20 embedded in the ceiling 18. Press against. At this time, embedded hardware 20 or floor 1
Even if there is a slight inclination, the spherical surface receiver 5 can handle it. Next, the welding robot 7 is operated. Then, the welding robot 7 starts spot welding which has been taught in advance at about 4 points (after temporary attachment), and then starts main welding. The main welding work will now be described with reference to FIG. 4. In the main welding, first, the arm 15 of the welding robot 7 starts from the point A, the welding torch 16 starts from the point A ′, and the arm 15 starts at the point B. , Welding torch 16 is B '
Welding stops when it rotates 180 ° to the point position. In this state, the suspension fitting 19 is welded on its half circumference. Thereafter, the rotating motor 13 rotates the rotating device 6 by 180 ° from the point C on the basis of the lower rotating table 12 and the upper rotating table 14 to change the position of the welding robot 7 by 180 °. At this time, since the position of the welding torch 16 comes to the position A ', the welding robot 7 welds the arm 15 in accordance with the teaching while rotating the arm 15 in the opposite direction to the previous one, and welds the remaining half of the hanging metal fitting 19. As a result, the entire circumference of the hanging bracket 19 is welded.

In addition, in the above-described embodiment, the hanging metal fitting is used as the welding object.
Although 19 is taken as an example, the present invention is not limited to this and other L steels, square pipes, steels, etc. can be welded by the structure of the holder. In addition, since welding requires an advanced control device, we used a welding robot that does not require existing development costs, but you can put your own development robot on it, and if the shape of the work is circular, etc. It is also possible to attach other existing welding equipment to the. Furthermore, the rotating device is not a motor-driven rotating device, but it is biased in advance by a mainspring, spring, etc. and fastened with a stopper, and after half-circle welding, the stopper is automatically removed and rotated by 180 ° with the force of the spring. May be

[Effect of device]

As described above, according to the remote-controlled ceiling automatic welding apparatus according to the present invention, it has an extendable post that can be extended and retracted with respect to the ceiling, and is attached to the ceiling by a welding robot that is attached to the extendable post via a rotating device. Since the object to be welded is configured to be automatically welded, it is possible to eliminate the conventional scaffold construction with a simple configuration, and it is possible to perform the upward welding work safely and easily.

Further, there is an advantage that the construction cost can be reduced as much as the scaffold construction can be made unnecessary, and further, since the welding is automatic, a uniform welding finish can be obtained as compared with the conventional method.

Further, since the present invention is provided with the holder for holding the object to be welded, there is an advantage that the work of temporarily attaching the object to be welded to a predetermined welding position on the ceiling can be smoothly performed without a scaffold. .

[Brief description of drawings]

FIG. 1 is an overall configuration diagram showing an embodiment of a remote control ceiling automatic welding device according to the present invention, FIG. 2 is a front view showing a rotating device and a welding robot part of the device of FIG. 1, and FIG. 3 is the same. FIG. 4 is a side view showing a part of the rotating device and the welding robot, and FIG. 4 is an operation explanatory view of the part of the rotating device and the welding robot. 3 ... Outrigger, 4 ... Telescopic post, 5 ... Spherical receiver, 6 ... Rotating device, 7 ... Welding robot, 12 ... Lower rotary table, 13 ... Rotating motor, 14 ... Upper rotary table, 15 …… Arm, 16 …… Welding torch, 17 …… Hanging metal fitting holder, 19 …… Hanging metal fitting.

Claims (2)

[Scope of utility model registration request] 1. An expansion / contraction post supported by an outrigger and expandable / contractible with respect to a ceiling, a rotating device mounted on the expansion / retraction post, a welding robot attached to the rotating device, and rotatable on an upper part of the rotating device. And a holder for holding an object to be welded mounted on the ceiling by welding, and a remote operation ceiling automatic welding device. 2. The remote-controlled ceiling automatic welding apparatus according to claim 1, wherein a spherical receiver for leveling is provided on an upper portion of the telescopic post.