JPH0847776A - Welding method of main column - Google Patents

Abstract

PURPOSE:To provide the device of compact, easy traveling/handling, having simplified setting to a main column and capable of improving welding efficiency by a welding slag removing device and wind protection device. CONSTITUTION:A carrier 1 is provided with a fork shape carrier frame and is constituted so that its plane shape is of U shape, support columns 18, which have support shafts 19 parallel with the center axis line of carrier 1, are elected at the front/rear end of both carrier frame constituting the carrier 1, and a fixed frame plate 21 is arranged between rear support shafts 19. Further, the device respectively supports traveling frame plates 22, which are connected to both ends of the fixed frame between front/rear support shafts and can obtain the horizontal position while forming square frame shape in plane shape and the vertical position to insert/accommodating the main column 2 while traveling the carrier by turning 90 deg., a welding robot device 4 is mounted free to travel on the rails arranged at the lower faces of the fixed frame plate and both moving frame plates 22 and connected each other.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to improvements in welding equipment for main columns.

[0002]

2. Description of the Related Art Conventionally, as a welding device for a main pillar of this kind, a bracket fixed to a side surface of a steel frame pillar and a rail unit on which a carriage device is movably provided are provided. The rail unit is attached to the rail body and the bracket. A device has been proposed in which a rail base that supports the load of the rail main body is integrated, and the rail base and the bracket are detachable via mounting means. (See, for example, Japanese Patent Laid-Open No. 6-91394) A truck apparatus provided with a welding robot movably provided on a rail arranged around the steel column so as to circulate along a side portion thereof. , The rails are formed so that both side surfaces have a smooth surface in the vertical direction around the steel frame column, and the carriage device includes a drive roller that is rollable with respect to the side surfaces of the rails that are arranged on both sides in the width direction of the rail. A bogie device for a steel-frame welding robot is provided, which includes a driving roller or a biasing member that is arranged between the rotating shafts of the rollers and presses each driving roller against the side surface of the rail from the outside, and a driving device that drives the driving roller. Proposed. (For example, JP-A-6-8707.
(See Publication No. 4)

[0003]

In the above-described conventional welding robot apparatus, the welding of the steel frame columns is performed manually, but the rail arrangement for the steel column is not possible. Since the installation work is done manually, not only a lot of labor and time is required for the welding work, but also it is difficult to secure the rail mounting accuracy, and it takes a lot of manpower and time to move the equipment after the welding work is completed. The issue is still unsolved.

An object of the present invention is to provide a device which is compact and easy to move and handle, which simplifies setting on the main column, and which can improve welding efficiency by a welding slag removing device and a windbreak means. It is something to do.

[0005]

The structure of the present invention which solves the problems of the prior art is such that a fork-shaped bogie frame is provided on both sides with a gap larger than the width of the main column to be welded. The bogie having a U-shaped plane is formed, and at the front and rear ends of the bogie frames constituting the bogie, a supporting column having a supporting shaft parallel to the central axis of the bogie at the upper end is erected, respectively, A fixed frame plate is arranged between the rear support shafts, and a horizontal posture at the time of welding work in which the planar shape is a rectangular frame shape by connecting to both ends of the fixed frame plate between the front and rear support shafts, and 90 °
Each of the movable frame plates is pivotally supported so that it can be pivotally displaced to obtain two vertical postures that allow the carriage to move and allow the main pillar to intervene, and the movable frame plates are connected to each other provided on the lower surfaces of the fixed frame plate and both movable frame plates. The rail is equipped with a welding robot device so that it can be moved cyclically, and on the carriage, a square frame structure that surrounds the outer side of the main pillar, and a dismountable rail frame is detachably mounted,
This rail frame was equipped with a welding slag removing device so that it could be moved cyclically, and between the upper and lower outer sides of the support columns standing upright on both sides, at least the welding operation part of the welding robot device, and the welding slag removing device. A frame rod for supporting a windbreak sheet that covers both sides and the front part of the slag removing work part is attached so that it can be undulated.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, details of embodiments of the present invention will be described with reference to the drawings. 1 is a plan view of the device of the present invention showing a welding state, FIG. 2 is a side view of FIG. 1, FIG. 3 is a plan view of a rail frame portion, FIG. 4 is a front view, and FIG. 5 is a side view showing a moving state of the device. 6 is a perspective view of the entire apparatus, FIG. 7 is a partially cutaway side view in which a welding robot is attached to the rails of fixed and movable frame plates, and FIG. 8 shows that the large and small movable frame plates can be replaced with reference to the fixed frame plate. FIG.

[0007] 1 has a fork-shaped bogie frame 3 on both sides with a gap larger than the width of the main column 2 to be welded.
Is a U-shaped trolley provided on the left and right, and a suction cleaner 8 connected to the control panel 5 of the welding robot device 4 and the welding slag removing device 6 by a hose 7 is installed at the rear of the trolley 1. And on top of that, the drum 1 of the welding wire 9
0, the control panel 11 of the welding slag removing device 6, etc. are mounted. Casters 12 are provided at required places on the lower surface of the carriage 1 and the left and right bogie frames 3, and a jack 13 having an outrigger function is provided at the required places. The jack 13 suspends and supports a welding robot device 4 described later. The rail is held horizontally while looking at the level (not shown). Further, as shown by a phantom line in FIG. 3, an auxiliary bogie frame 14 is detachably provided between the front ends of the bogie frame 3, and the front part of the bogie frame 3 is opened by removing the auxiliary bogie frame 14, The main pillar 2 can be guided and intervened between the frames 3.

Further, a spacer member 15 for contacting a side surface of the main pillar 2 with a front end edge portion of the carriage 1 and for forming and maintaining a required gap between the front end edge of the carriage 1 and the main pillar 2 is advanced and retracted. In addition to being adjustable, a contact member 16 for positioning, which contacts the side surface of the main pillar 2, is provided on the inner side surfaces of the two bogie frames 3 facing each other so as to be able to move forward and backward and back and forth. Further, the contact member 1 is also capable of advancing and retreating to the center of the inner surface of the auxiliary bogie frame 14.
7, the spacer member 15, the contact members 16, 1 are provided.
By abutting 7 on the main pillar 2, the carriage 1 can be fixed and the entire apparatus can be positioned with respect to the main pillar 2.

As is clear from FIGS. 2 and 5, at four front and rear end portions of the two bogie frames 3, a support column 18 having a base largely curved in the front-rear direction so that it is aligned with the central axis of the bogie 1
The lower end of the carriage 1 is fixed to the upper end of the support column 18.
Axis 1 which is parallel to the central axis of and has the same axis
9 are provided opposite to each other. On the other hand, two pillars 20 are erected at the center of the front end of the bogie 1, and a fixed frame plate 21 arranged between the support shafts 19 is horizontally attached to the upper ends of the pillars 20. Also, between the left and right support shafts 19 facing each other, the welding work posture is connected to both ends of the fixed frame plate 21 and the planar shape thereof is a rectangular frame shape as shown in FIG. 1, and 90 ° shown in FIG. The movable frame plates 22 each having a U-shaped planar shape for pivotally displacing to obtain two postures of the main column 2 are pivotally supported, and the fixed frame plate 21 and the left and right movable frame plates 22 are also supported.
The connection between the comrades and the connection between the movable frame plates 22 are such that they are separated by a pin 23. Reference numeral 24 is a pushing operation rod of the truck 1 mounted between the rear supporting columns 18. As shown in FIG. 7, rails 25 are provided on the lower surfaces of the fixed frame plate 21 and the movable frame plate 22 so as to be abutted against each other, and the rails 25 constitute the welding robot apparatus 4. The drive wheel 26 provided on the arm portion 4a is engaged, and the driving robot 26 drives the welding robot apparatus 4 into a rectangular frame-shaped fixed and movable frame plates 21 and 2.
It is designed so that it can be patrolly moved along line 2. still,
When both the movable frame plates 22 are pivotally displaced by 90 ° and the main column 2 is in the intervention allowance position, the welding robot apparatus 4 moves to the fixed frame plate 2
It is suspended and housed in a rail 25 portion provided on the lower surface of 1.
The welding wire 9 wound around the drum 10 of the welding wire 9 is provided on the upper part of the one supporting pillar 18 so that the welding wire 9 can be undulated.
It is supplied to the welding torch 29 via the feeding mechanism 28 while being guided by a. The welding robot device 4 is controlled by the control panel 5. Also, the shape of the rail 25 is shown as an example, and since the rail can be formed into a rack structure so that the drive pinion can be engaged with the rail, the rail 25 is not limited to the illustrated one.

Reference numeral 30 shown in FIG. 3 is a fixed rail frame 30a provided on the front part of the bogie 1, and is connected to both ends of the fixed rail frame 30a, and on the left and right bogie frames 3 and the auxiliary bogie frame 14. It is a rail frame that is detachably mounted and is composed of at least two disassembled rail frames 30b that can be divided into at least two parts. The rail frame 30 has a rectangular frame shape when assembled. Is installed to surround
At the time of movement, the fixed rail frame 30a is left and removed. Fixed rail frame 30 that constitutes this rail frame 30
a and the disassembled rail frame 30b, as shown in FIGS.
This rail frame 3 has a structure in which it is hung vertically on a rectangular frame-shaped substrate 30c and is reinforced by many stiffeners 30d.
At 0, the welding slag removing device 6 is mounted so as to be self-propelled and detachably mounted. The welding slag removing device 6 is controlled by the control panel 11 so as to follow the welding robot device 4. Reference numeral 31 shown in FIGS. 3 and 6 is a suction slag suction duct provided in contact with the welding slag removing device 6, and the suction duct 31 is suspended on the guide member 27a of the "shaped support rod 27". It is connected to the suction cleaner 8 via the suction hose 7 so that the slag can be collected. Since it can be blown away, it is not limited to the example.

As shown in the drawing, a frame rod 33 for supporting a windbreak sheet 32 having a curved U-shaped plan is provided between the upper and lower outer sides of the support columns 18 standing on the left and right bogie frames 3. Shaft support is possible. Further, the connecting rods 34 are detachably bridged between the upper and lower portions between the front and rear support columns 18, and the windbreak sheets 32 are respectively attached to the outside between the upper and lower connecting rods 34 and between the upper and lower frame rods 33 during welding work. It is provided so as to prevent invasion of wind from the outside to prevent defective welding, and during movement, the frame rod 33 is folded downward to be compact as shown in FIG.

On the other hand, the size of the main pillar 2 is 400 as an example.
There are types of mm to 800 mm or more, and if a rail with a certain size is used, it is not suitable for a construction site in terms of size, weight, and price. Therefore, as shown in FIG. 8, the length of the front support shaft 19 is changed to a short length without changing the fixed frame plate 21 supported by the column 20, and the movable frame plate 22 supported by this is changed in size. By changing the size, the welding robot apparatus 4 is made to correspond to the size of the main pillar 2. Further, since the fixed frame body 21 is not changed, the welding robot apparatus 4 does not need to be disassembled on the spot, and the accuracy can be maintained. The welding apparatus A of the present invention is configured as described above.

[0013]

Description of Action Next, the action of the welding apparatus A will be described. As shown in FIG. 5, both movable frame plates 22 are swung 90 ° to fold and are in a vertical posture, and the support rod 27 and the frame rod 3 are provided.
3 is folded, and further, the auxiliary bogie frame 14 and the rail frame 30
Welding device A which is made compact by disassembling and removing
It is transported to the welding work site by using an elevator for transportation. At the site, the trolley 1 having a U-shaped planar shape is inserted into the main column 2 to be welded so that the main column 2 is fixed to the trolley frame 3
Located between them, the spacer member 15 of the bogie 1 and both bogie frames 3
The contact member 16 is adjusted to expand and contract to contact the side surface of the main pillar 2, and the auxiliary bogie frame 14 is provided between the ends of the bogie frames 3.
The carriage 1 is mounted on the main pillar 2 while adjusting the contact member 17 by expanding and contracting the carriage 1. Then, the movable frame plates 22 are returned to the horizontal posture, the movable frame plates 22 are connected to each other by the pins 23, the movable frame plate 22 and the fixed frame plate 21 are connected, and the connecting rod 34 is bridge-connected between the support columns 18, The jacks 13 are jacked up to the floor surface, the casters 12 are floated, the load of the entire apparatus is supported by the jacks 13, and the carriage 1 is fixed. Then, the jack 13 is operated while looking at the level to set the fixed frame plate 21, the movable frame plate 22, that is, the surface of the rail 25 horizontally. After the bogie 1 is set in this manner, a fixed rail frame 30a for mounting and supporting the welding slag removing device 6 provided on the front part of the bogie 1
By disassembling the disassembling rail frame 30b to form the square rod-shaped rail frame 30, the frame rod 33 provided on each support column 18 is raised in a horizontal posture, and the windbreak sheet 32 is surrounded on the outside thereof. Welding preparation is over. The preparatory work before the welding work has been described above, but the procedure may be changed before and after. Next, the joint welding groove portion of the main column 2 is automatically continuously multi-layer welded by the traveling movement along the rail 25 of the welding robot device 4, and the welding slag removing is automatically performed by the traveling movement of the welding slag removing device 6. You can do it. Since the welded portion and the weld slag removing portion are surrounded by the windbreak sheet 32, welding failure due to the influence of wind can be reasonably prevented, welding efficiency can be improved, and the welding robot apparatus 4 is suspended on the rail 25. Therefore, there is no accumulation of spatter on the rail surface, and the welding efficiency can be further improved.

[0014]

As described above, according to the structure of the present invention, the following effects can be obtained. (A) As in the prior art, without providing a rail for guiding the welding robot apparatus with respect to the main pillar, that is, a means for enclosing the main pillar composed of a fixed frame plate and a movable frame plate, a trolley is used for the work site. In addition to being able to carry in and set it, it is possible to save labor, and at the time of movement of the carriage, the movable frame plate can be pivotally displaced by 90 ° to move the entire apparatus in a compact form. In addition, since the welding robot apparatus is suspended by rails provided on the lower surfaces of the fixed frame plate and the movable frame plate so as to be cyclically movable,
Spatters are not accumulated on the rail surface, and welding efficiency can be improved. (B) A rail frame surrounding the main pillar is removably mounted on the trolley, and the welding slag removing device is equipped on this rail frame so that it can be circulated, so that the welding slag can be automatically and continuously removed without manpower. In addition, the welding robot apparatus can continuously perform multi-layer welding, thereby improving the welding efficiency, and since the rail frame is removed when the carriage is moved, it is easy to downsize the entire apparatus. (C) By providing the frame rod between the upper and lower outer sides of the support pillar so that the frame rod can be raised and lowered, the windshield sheet is surrounded by the outer periphery of the frame rod when the frame rod is erected horizontally. It is possible to improve welding efficiency by preventing defective welding before it is affected by. (D) By exchanging large and small movable frame plates with respect to the support shafts provided at the upper ends of the support columns, the movable frame plates suitable for the size of the main columns can perform appropriate welding work.

[Brief description of drawings]

FIG. 1 is a plan view of the device of the present invention showing a welding state.

FIG. 2 is a side view of FIG.

FIG. 3 is a plan view of a rail frame portion.

FIG. 4 is a front view.

FIG. 5 is a side view showing a moving state of the device.

FIG. 6 is a perspective view of the entire apparatus.

FIG. 7 is a partially cutaway side view in which a welding robot is mounted on rails of a fixed and movable frame plate.

FIG. 8 is a schematic diagram in which large and small movable frame plates can be replaced with reference to the fixed frame plate.

[Explanation of symbols]

 A welding equipment 1 bogie 2 main pillar 3 bogie frame 4 welding robot equipment 4a arm part 5 control panel 6 welding slag removing device 7 hose 8 suction cleaner 9 welding wire 10 drum 11 control panel 12 caster 13 jack 14 auxiliary bogie frame 15 spacer Member 16 Contact member 17 Contact member 18 Support column 19 Support shaft 20 Column 21 Fixed frame plate 22 Movable frame plate 23 Pin 24 Pushing rod 25 Rail 26 Drive wheel 27 "Shape support rod 27a Guide member 28 Feeding mechanism 29 Welding torch 30 Rail frame 30a Fixed rail frame 30b Disassembly rail frame 30c Substrate 30d Stiffener 31 Suction duct 32 Windbreak sheet 33 Frame rod 34 Continuous rod

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yukio Aomi 11-11 Minamisuna, Koto-ku, Tokyo Kawasaki Heavy Industries Ltd. Tokyo Design Office (72) Inventor Kanji Mitsuhashi 1-1 Kawasaki-cho, Akashi-shi Kawasaki Heavy Industries Co., Ltd.Akashi Plant (72) Inventor Hiroyuki Matsumura 3-1-1 Higashikawasaki-cho, Chuo-ku, Kobe Kawasaki Heavy Industries Ltd. Kobe Plant (72) Hideo Tanijiri 4-chome Sendagaya, Shibuya-ku, Tokyo No. 15 Stock Company Fujita (72) Inventor Fumiya Ishiguro 4-6-15 Sendagaya, Shibuya-ku, Tokyo Stock Company Fujita (72) Inventor Takashi Arai 4-6-15 Sendagaya, Shibuya-ku, Tokyo Shares Inside the company Fujita (72) Inventor Ryoji Yoshitake 4-6-15 Sendagaya, Shibuya-ku, Tokyo Inside the company Fujita

Claims (4)

[Claims] 1. A bogie having a U-shaped planar shape with a fork-shaped bogie frame provided on both sides with a spacing larger than the width of the main column to be welded, and the bogie is formed. At the front and rear ends of the two bogie frames, support pillars each having a support shaft parallel to the central axis of the bogie at the upper end are erected, respectively,
A fixed frame plate is arranged between the rear support shafts, and a horizontal posture at the time of welding work in which a planar shape is a rectangular frame shape by connecting to both ends of the fixed frame plate between the front and rear support shafts, and 90 ° turning. The movable frame plates, which are displaced to obtain two vertical postures that allow the main pillar to intervene when the carriage moves, are pivotally supported, respectively, and are connected to each other provided on the lower surfaces of the fixed frame plate and both movable frame plates. A welding device for main pillars, in which a welding robot device is rotatably mounted on a rail. 2. A rail frame having a rectangular frame structure surrounding the outer side of the main pillar is detachably mounted on the carriage, and a welding slag removing device can be circulated on the rail frame. The welding device for a main pillar according to claim 1, which is installed in the. 3. A windbreak which covers at least both sides and a front part of a welding work portion of the welding robot apparatus and at least a slag removing work portion by the welding slag removing device between upper and lower outer sides of the support columns erected on both sides. The main pillar welding apparatus according to claim 1 or 2, wherein a frame rod for supporting the seat is attached so as to be capable of undulating. 4. The main pillar welding apparatus according to claim 1, wherein large and small movable frame plates are exchangeably supported between the support shafts.