JPS63199082A - Beam material assembling and welding equipment - Google Patents

Abstract

PURPOSE:To perform the assembling, tack welding and main welding with one equipment and to reduce a man-hour, the working time and working space by assembling web material and flange materials in an I shape and afterward, performing the track welding and main welding. CONSTITUTION:After the web material (w) and flange materials (f) are assembled in the I shape by an assembling means 2, a girder is advanced and torches for a CO2 semiautomatic arc welding are set to corner parts of the web material (w) and flange materials (f) at the assembled material starting edges. The torches advance while restoring the positions of the flange materials (f) stored by a profile sensor from behind respectively and the corner parts between the web material (w) and flange materials (f)) are tack-welded on the right and left at the same time. Next, the girder is returned to the material starting edges and the preceding torch for welding and the succeeding torch for the submerged arc welding are welding are set to the corner parts between the web material (c) and flange materials (f) and the girder is advanced. The corner parts between the web material (w) and flange materials (f) are subjected to the main welding on the right and left at the same time while restoring the positions of the flange materials (f) stored by the sensor from behind.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a girder assembly and welding device. More specifically, the present invention relates to an apparatus for manufacturing a single digit by assembling a web material and a flange material into a shape, and then performing tack welding and final welding.

[Prior art]

For example, when manufacturing a girder material with an I-shaped cross section used for a bridge girder, that is, a single girder, conventionally, two pieces of flange material were
Mark the web material assembly position, respectively, and then
A web material is erected at the marking location on one of the flange materials, and then the two are welded. Next, the joined member of the web material and flange material is turned over, and the joined member is placed in another location. It required a large amount of man-hours and working time because it was applied on the markings of the other flange material and then welded together.

In addition, there are only a few assembly and welding locations (two locations are required, so a large work area is required overall.Furthermore, these operations require skill.

[Purpose of the invention]

The present invention has been made to eliminate these drawbacks, and aims to reduce the number of man-hours, working time, and working space, and to eliminate the need for marking and skill.

[Structure of the invention]

The apparatus for assembling and welding girder members of the present invention, which can achieve the above object, includes an assembly means for assembling a nib material and a flange material in a shape with the web material horizontally arranged, and a traveling body that moves along the assembly means. and a welding means for welding the web material and the flange material.

That is, the assembly means of the present invention includes an assembly means and a welding means, and the former includes a web support means that supports the web material in a horizontal plane, and a flange material support that presses the flange material against both sides of the web material while leaning against it. Includes means. The latter consists of a carbon dioxide gas semi-automatic arc welding torch for tack and main welding, a submerged arc welding torch for main welding that provides a beautiful bead appearance, and a carbon dioxide gas semi-automatic welding power source.

Further, the welding torch included in the welding means is automatically positioned by the control means so as to correspond to the corner weld between the web material and the flange material.

The web material may be in the form of a strip or in the form of a fan to provide camber. Further, the flange material includes a strip-shaped material, or a material whose width and thickness are not uniform.

As described above, according to the present invention, one device can perform assembly and
Since tack welding and final welding can be performed, the number of man-hours, working time, and working space are significantly reduced compared to conventional methods. Also,
Marking and skill are also not required.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a front view of the girder assembly and welding apparatus according to the present invention. According to the girder assembly and welding apparatus 1, for example, the 15th
A single digit 100 having a camber C as shown in the figure can also be easily manufactured.

The girder material assembly and welding device 1 welds one web material W and two flange materials f, f! An assembly means 2 for assembling into a mold, and a girder 4 as a traveling body that moves along the assembly means 2
The welding means 3 is attached to the welding means 3 and welds the web material W and the flange material f. Such assembly means 2,
and welding means 3 will be explained in order.

(a) As shown in Figure 1, the assembly means 2 includes a web material support means 5 that supports the web material W in a planar manner, and flanges on both sides of the web material W. It is composed of a flange material support means 6 that presses the material f in a leaning state.

As shown in FIG. 2, the web material support means 5 is composed of a large number of rollers 15 and 15a arranged in parallel on two sides along the longitudinal direction of the assembly means 2. As shown in FIG. As shown in FIG. 1, one roller 15 is rotatably attached to the fixed frame 11, and the other roller 15a is rotatably attached to the moving frame lla. and,
The web material W is supported in a planar manner by these rollers 15.degree. 15a.

Further, as shown in FIG. 1, flange material supporting means 6 are provided on both sides of the web material supporting means 5, respectively. One of the flange material supporting means 6 is a flange stand 16
have. This flange stand 16 is a fixed frame 1
It is raised and lowered by a large number of hydraulic cylinders 17 attached to 1.

Further, as shown in FIG. 1, a large number of stoppers 18 are attached to the flange stand 16 to support the reaction force. In addition, the fixed frame 11 is provided with a stopper receiver 20.
are fixed, respectively. Further, a continuous stopper 21 is disposed on the stopper receiver 20. As shown in FIGS. 6 to 8, the continuous stopper 21 includes a retaining portion 23 with a horizontal cross section and a release portion 22 with a rectangular cross section adjacent thereto.
When located at 0, the stopper 18 is supported by the stopper receiver 20, and the release part 22 is supported by the stopper receiver 20.
When located at 0, the engagement between the stopper 18 and the stopper receiver 20 is released.

The other flange material support means 6 is a flange stand 16a.
have. This flange stand 16a is raised and lowered by a large number of hydraulic cylinders 17a attached to the moving frame lla.

In addition, as shown in FIG. 1, the flange stand 16a includes
A large number of stoppers 18a are attached to support the reaction force. Furthermore, stopper receivers 20a are fixed to each of the movable frames 11a. Further, a continuous stopper 21 is disposed on the stopper receiver 20a.

As shown in FIGS. 6 to 8, the continuous parr 21 includes a retaining portion 23 having a wedge-shaped cross section and a release portion 22 having a rectangular cross section adjacent thereto, and the retaining portion 23 serves as a stopper. When the stopper tea is located at the stopper receiver 20a, the stopper tea is supported by the stopper receiver 20a, and when the release part 22 is located at the stopper receiver 20a, the stopper tea is supported by the stopper receiver 20a.
Then, the locking of the stopper receiver 20a is released.

Furthermore, as shown in FIG. 2, the flange stand 16.16a
Flange width devices 25 are respectively attached at regular intervals. Each flange width device 25 has a pair of rollers 26.26, and these pair of rollers 26.
．． 26, the flange material f is flange stand 16, 16
They are aligned to the center of a. That is, as shown in FIG. 9, a pair of blocks 28, 28 are slidably attached between a pair of left and right grooved rails 27, 27,
Further, a shaft 29 is fixed to each block 28, as shown in FIG. 11, and a roller 26 is rotatably attached to this shaft 29. This shaft 29 has a sufficient length and is configured so that the flange material f can move in the axial direction together with the roller 26 in response to changes in camber. A stopper plate 30 is fixed to the tip of the shaft 29 to prevent the roller 26 from falling off. Further, as shown in FIG. 9, a pinion gear 32 is disposed at the center of a base 31 that fixes the pair of grooved rails 27, 27. This pinion gear 32 is connected to a pair of round racks 3
3.33, one of the round racks 33
is fixed to one block 28, and the other round rack 33 is fixed to the other block 28. Further, each block 28 is provided with a hole 34 into which a round hook 33 attached to the opposing block 28 can enter. Further, the pinion gear 3'2 is driven by a hydraulic motor 35 attached to the base 31.

In addition, as shown in Fig. 2, the flange stand 16.16a
are each equipped with a large number of air cylinders 37 for flange pressing, and when the flange material f is pressed by the flange pusher 38 (see Fig. 1) provided at the head of the air cylinder, the flange material f is Metal touch is applied to the web material W over its entire length.

Further, as shown in FIG. 1, a leveling rail 39 is provided between the roller 15 and the flange stand 16.

Between the leveling rail 39 and the fixed frame 11, modeled levelers 40 and 41 are provided, respectively, one of which is fixed to the leveling rail 39 and the other fixed to the fixed frame 11. has been done. The web material W can be positioned at the center of the flange material f by moving the leveling rail 39 in its longitudinal direction (direction penetrating the page).

Similarly, a leveling rail 39 is arranged between the roller 15a and the flange stand 16a. Between the leveling rail 39 and the moving frame 1laO, there are
There are modeled levelers 40 and 41,
One of them is fixed to the leveling rail 39, and the other one is fixed to the moving frame lla. The web material W can be positioned at the center of the flange material f by moving the leveling rail 39a in its longitudinal direction (direction penetrating the page).

Therefore, in FIG. 1, the flange stand 16.16a
are opened to the left and right as shown by the two-dot broken line, and after placing the flange material f on each of them, when the hydraulic motor 35 is rotated, the rollers 26 and 26 approach, and the flange material r is It is supported at the center of the flange stand 16.16a.

Then, when the hydraulic cylinder 17.17a is actuated,
The flange stand 16.16a will rise as shown by the solid line, but at this time, the flange stand 16.16a will be slightly pushed up.
After tilting it inward and positioning the engaging part 23 of each continuous stopper 21 in the stopper receiver 20.20a, return it slightly to the original position, the lower end of the stopper 18.18a will engage with the stopper receiver 20, 20a. , flange stand 16.16
It can support the reaction force of a.

Next, the web material W is placed on the roller 15.15a, and then the leveling rail 39.39 is moved in its longitudinal direction.
39 is raised and lowered, and both ends of the web W are aligned with the center of the flange material f.

Next, when the movable frame lla is moved to the fixed frame 11 side, the web material W is pressed against the flange material f on the fixed frame 11 side by the flange material f on the movable frame lla side.

Next, when the air cylinders 37 and 37 for pressing the flange are activated, the flange material f on both sides is strongly pressed against the web material W, and even if the web material W is a web material with camber, the flange material f and The web material W is in close contact over the entire length.

As shown in FIG. 1, the moving frame lla is disposed on a rail 47 laid on the floor surface 7 so as to be freely traversable.

In addition, the leg portion 4 of the moving frame lla provided with the moving vehicle 42
A large nut 43 is attached to 6, and a threaded shaft 44 screwed into this nut 43 is provided parallel to the rail 41. Each screw shaft 44 is rotated by a frame moving motor 45, and as this motor 45 rotates forward and backward, the movable frame 11a approaches or moves away from the fixed frame 11.

As shown in FIG. 1, the welding means 3 is attached to a girder 4 as a traveling body, and the welding means 3 is attached to a girder 4 as a running body, and the welding means 3 is attached to a girder 4 as a running body, and the welding means 3 is attached to the girder 4 in the direction of penetrating the page, that is, the longitudinal direction of the assembly means 2. direction at a predetermined welding speed.

Girder 4 has a gate shape, and has a pair of left and right rails 51.51
It's on top. The girder 4 is provided with saddles 52 and 52 on its left and right sides, and each saddle 52 is
As shown in FIG. 3, a driven wheel 53 and a driving wheel 54 are provided. As shown in Figure 5, both have tsuba 55.55 on both sides.
However, the driving wheel 54 has one flange 55 shaped like a gear 56, and is rotated by a driving gear 57 that meshes with the flange 56. The drive gear 57 is rotated by a servo motor 58 shown in FIG. This servo motor 5
8 is equipped with an encoder (not shown), and the distance traveled by the girder 4, in other words, the scanning sensor 81.81a, is inputted every moment to a controller 90 such as a computer based on pulse signals from this encoder. . Further, as shown in FIG. 5, each saddle 52 holds each rail 51 between a pair of rollers 59 and 59 provided at the front and rear thereof.

As shown in FIG. 1, the girder 4 has a moving frame lla
A girder stage 61 is provided above the girder stage 61, which can move in the lateral direction of the girder 4, that is, in the lateral direction of the assembly means 2. As shown in FIG. 3, this girder stage 61 is slidably attached to a pair of guide rails 62, 62 laid in the lateral direction of the girder 4. A rack 63 is laid parallel to one of the rails 62, and a pinion 64 that engages with the rack 63 is driven by a motor 65 installed on the girder stage 61.

As shown in FIG. 13, a roller 68a that is raised and lowered by an air cylinder 67a is attached to the first arm 66a fixed to the girder stage 61, and the web material W is moved onto the flange leveling rail 39 by this roller 68a. Being forced. Further, as shown in FIG. 13, a second arm 69 fixed to the girder stage 61 is provided with an elevating arm 71 that is raised and lowered by an elevating slider 70. As shown in FIG.

This elevating arm 71 is equipped with two transverse sliders 72a and 73a that are each independently driven.

A carbon dioxide semi-automatic arc welding torch 74a used for temporary welding and actual welding is attached to the first transverse slider 72a, and a torch 74a for carbon dioxide gas semi-automatic arc welding is attached to the second transverse slider 73a.
Duct 75a for dropping flux used during main welding
, a torch 76a for submerged arc welding, and a duct 77a for recovering flux. Furthermore, a tracing sensor 81a is attached to the third arm 78a fixed to the lifting arm 71 to detect the position of the flange material f. This copying sensor 81a is constructed as shown in FIG. 14, and a copying element 82 is attached to a rod 85 of a cylinder 84 via an L-shaped bracket 83.

Further, a rod 86 of a copying sensor 81a is fixed to the bracket 83 so as to synchronize with the cylinder 840 and the rod 85. In addition, this copying sensor 81a
is equipped with an encoder 87, and this encoder 8
The position of the copying element 82, that is, the flange material f, is inputted to the controller 90 every moment by pulse signals from the copying element 7.

By the way, as shown in FIG. 13, the copying sensor 81a
is 1 from the preceding torch 74a! , since it is far ahead,
From the time when the copying sensor 81a has traveled a distance l, the position of the preceding torch 74a is controlled by the controller 90 so as to restore the position of the flange f stored by the controller 90. Also, since the copying sensor 81a is ahead of the trailing torch 76a by 12, the controller 90
Therefore, the flange f stored in the controller 90
The position of the trailing torch 76a is controlled so as to restore the position of the trailing torch 76a.

The heights of the tracing sensor 81a, the torch 74a for semi-automatic carbon dioxide arc welding, the flux dropping duct 75a, the torch 76a for submerged arc welding, and the flux recovery duct 77a are adjusted by the lift slider 70.

On the other hand, on the girder stage 61, as shown in FIG. 4, there are a flux hopper 91a, two wire supply devices 92a and 93a, a flux recovery device 94a, and two welding power sources 95a.

96a is provided. The welding power source used is a welding power source for a carbon dioxide gas semi-automatic arc welding machine, and the wire (core wire) is also a core wire for a carbon dioxide gas semi-automatic arc welding machine.

Further, as shown in FIG. 1, a web pressing roller 68 is installed facing the flange leveling rail 39 on the fixed frame 11 side. In addition, the fixed frame 11
The girder stage 61 is located in the upper part of the girder 4.
Similarly (see Fig. 13), there is a copying sensor 81, a carbon dioxide gas semi-automatic arc welding torch 74 used for temporary welding, a torch 74 for semi-automatic carbon dioxide arc welding used during actual welding, a duct 75 for dropping flux used during actual welding, and submerged arc welding. A torch 76 for use, a duct 77 for collecting flux, etc. are attached.

Then, the preceding torch 7 is controlled by the controller 90.
4, and the trailing torch 76 is similarly controlled to restore the position of the tracing sensor 74. Also, on the pedestal 97 installed on the girder 4, a fourth
As shown in the figure, a flux spotper 91, two wire supply devices 92 and 93, a flux recovery device 94, and two welding power sources 95 and 96 are provided. The welding power source used is a welding power source for a carbon dioxide gas semi-automatic arc welding machine, and the wire (core wire) is also a core wire for a carbon dioxide gas semi-automatic arc welding machine.

Welding of the web material W and the flange material f assembled into a single character shape by the assembly means 2 is performed in two steps: temporary welding and main welding.

As shown in FIG.
After the web material and flange material are assembled together by the assembly means 2, the girder 4 is advanced in the direction of arrow A, and at the starting end of the assembled materials, carbon dioxide gas is semi-automatically released. Torch for arc welding? 4.74a is set at the corner of the web material W and the flange material f, the position of the flange material f memorized by the copying sensor 81.81a is transferred to each torch? 4.74a moves forward while restoring later, and the corner portions of the web material W and the flange material f are temporarily attached on both the left and right sides at the same time.

Next, the girder 4 is returned to the starting end of the material, and then the preceding carbon dioxide gas semi-automatic arc welding torch is used. '4.
74a and the following submerged arc welding torch? 6
, 76a is set at the corner between the web material W and the flange material f, and the girder 4 is advanced in the direction of the arrow A, so that the position of the flange material f stored by the copying sensor 81.81a must be restored later. The corner portions of the web material W and the flange material f are permanently welded simultaneously on the left and right sides.

Thereafter, when the flange pressing cylinder 37 is brought into the open state and the roller 26 of the flange width adjusting device 25 is retreated, a single digit 100 as shown in FIG. 15 is obtained.

(Effects of the Invention) As described above, according to the present invention, one device can perform assembly and
Since tack welding and final welding can be performed, the number of man-hours, working time, and working space are significantly reduced compared to conventional methods. Also,
Marking and skill are also not required.

[Brief explanation of the drawing]

Fig. 1 is a front view of the girder assembly and welding device according to the present invention, Fig.
The figure is a plan view, FIG. 3 is a side view, FIG. 4 is a plan view of the girder, FIG. 5 is a plan view of the saddle, FIG. 6 is a plan view of the continuous stopper, and FIG. Figure 6 is a cross-sectional view taken along ■-■ in Figure 6, Figure 9 is a front view of the flange width adjustment device, and Figure 10 is a side view including a partial cross section of the flange width adjustment device. Figure 11 is X I -X of Figure 9.
I sectional view, Fig. 12 is a side view of the flange leveling rail, Fig. 13 is an enlarged detailed view of the area indicated by arrow E in Fig. 3, Fig. 14 is an enlarged explanatory view of the area around the torch, and Fig. 15 is a side view of the flange leveling rail.
It is a front view of a girder. 1...Girder assembly welding device, 2...Assembling means, 3...
- Welding means, 4... Traveling body, W... Web material, f.
...Flange material.

Claims (1)

[Claims] an assembly means for assembling the web material and the flange material into an I-shape with the web material arranged horizontally; a welding means attached to a traveling body that moves along the assembly means and welding the web material and the flange material; Girder assembly and welding equipment consisting of: