JP2000225463A - Shape steel assembly device without tack welding - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a light weight shape steel assembly device without the need of tack welding. SOLUTION: The device consists of a flange positioning clamp device 20 to position/clamp a flange material 1, a web material positioning device having a side roller to position a web material 2, an upper holding device having an upper roller to hold the web material 2 or the flange material 1 from above, a welding torch, a welding torch support device to support the welding torch and a running device to run the welding torch.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a welding type lightweight section steel (for example, an H-section steel, a T-section steel, etc.) for welding a flange material and a web material without tack welding. The present invention relates to a shape steel tack-less welding and assembling apparatus capable of assembling.

[0002]

2. Description of the Related Art A conventional lightweight H-section steel and T-section steel is assembled by welding as shown in FIG. In step 1, the flange material 101 and the web material 102 are set on the welding work table 106, and are positioned at L = R (flange left = flange right) using a jig 103, and are temporarily attached in the length direction. A T-bar is produced by welding and assembling. The tack weld 108 is performed intermittently in the longitudinal direction. In the case of the H-section steel, in the step 2, the above-mentioned temporarily assembled T-bar is positioned in the same manner as in the step 1, and the vise 104 is pressed in the vertical direction, and the lower flange and the web of the T-bar are lengthened. H-bar is manufactured by performing double-sided tack welding assembly in the vertical direction. Temporary weld 10
8 is performed intermittently in the longitudinal direction. In the case of T-section steel, after step 1 is completed, and in the case of H-section steel, after step 2 is completed, in step 3,
This welding assembly is performed by placing a vice 10
5 and welded one by one to produce lightweight H-section steel and T-section steel.

[0003]

However, there have been the following problems in the production of conventional lightweight H and T steels. In the work in the steps 1 and 2, the temporary welding and assembling is sequentially performed in the length direction while manually performing the dimension adjustment using the jig 103 and the vise 104.
Work time is lengthened. For example, in the case of H-section steel, 15
0 minutes / piece (6000 mm length), 90 in case of T-section steel
It takes １００100 minutes / piece (6000 mm length). After the manual work of the steps 1 and 2 is completed, the process enters the main welding step 3, so that the productivity is low and the cost is high. SUMMARY OF THE INVENTION An object of the present invention is to provide a shaped steel tack-less welding assembly device capable of performing a final welding without performing a tack welding.

[0004]

The present invention to achieve the above object is as follows. (1) A flange positioning / clamping device for positioning and clamping a flange material, a web material positioning device having side rollers for positioning the web material, an upper holding device having an upper pressing roller for pressing the web material or the flange material from above, A section-shaped temporary tack-less welding and assembling apparatus comprising: a welding torch and a welding torch supporting device for supporting the welding torch; (2) The flange positioning clamp device includes a flange clamp claw for clamping a flange material from the left and right, a cam plate slidably engaged with the flange clamp claw, and an air cylinder for driving the cam plate. ). (3) The welding device according to (1), wherein the traveling device includes an electric traveling device that drives the side roller, the upper pressing roller, the welding torch, and the welding torch support device to travel. (4) The welding and torch support device according to (1), wherein the welding torch support device has an arc-shaped rail that supports the welding torch so that the welding torch can pivot. (5) The welding assembly device according to (1), wherein the welding torch is replaceably supported by the welding torch support device.

[0005] In the above-mentioned (1) to (5) apparatus for temporarily welding without forming steel bars, the flange material is positioned and clamped by the flange positioning clamp device, and the web material is positioned by the web material positioning device. While holding the material from above with the upper holding device and moving the welding torch and the welding torch support device in the longitudinal direction of the material with the traveling device, the contact part of the web material to the flange material with the welding torch from one side or both sides. Weld. No tack welding is performed there.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a welding apparatus for tack-less shaped steel according to the present invention will be described with reference to FIGS. The apparatus for temporarily welding without forming a section steel according to the embodiment of the present invention is capable of positioning and fixing the flange material and the web material 2 from the flange material and the web material 2 without performing the tack welding, performing the main welding, and performing the welding. ,
Therefore, it is an apparatus for welding and assembling a lightweight H-beam or T-beam.

As shown in FIGS. 1 to 7, a welding device for sectioned steel welding without a section steel according to an embodiment of the present invention includes a flange positioning clamp device 20 having a clamp claw 8 for positioning and clamping the flange material 1, and a web material. A web material positioning device 30 having side rollers 11 for positioning the web material 2, an upper pressing device 40 having an upper pressing roller 12 for pressing the web material 2 or the flange material 1 from above, and a welding torch 15
And torch support device 5 for supporting welding torch 15
0, and a traveling device 60 for causing the welding torch 15 and the welding torch support device 50 to travel in the longitudinal direction of the flange material and the web material. The apparatus for temporarily welding a shaped steel tack-less welding according to the embodiment of the present invention further comprises a welding worktable 6 fixed to the floor and having a horizontal upper surface, and a vertically movable tip stopper located in front of the welding worktable 6. 7 and a fixed guide rail 16 extending in the longitudinal direction.

As shown in FIGS. 2 to 4, the flange positioning and clamping device 20 slides between the flange clamp claw 8 and the flange clamp claw 8 for positioning and clamping the flange material 1 from the left and right (from the width direction of the flange material). It has a cam plate 13 to be engaged and an air cylinder 14 for driving the cam plate 13. A pair of left and right flange clamp claws 8 are arranged in the notch 17 of the upper flange of the welding worktable 6 having an H-shaped cross section so as to be movable in the width direction of the welding worktable 6 (the width direction of the flange material). Work table 6
The flange material 1 placed and set on the is pressed and positioned and clamped from the left and right. The flange clamp claw 8 has a rod 8 a extending downward, and the rod 8 a is a groove 1 extending obliquely in a horizontal plane formed on the cam plate 13.
When the cam plate 13 is driven by an air cylinder in the longitudinal direction of the welding worktable 6, the flange clamp claw 8 is moved in the width direction of the welding worktable 6. When the air cylinder 14 pulls the cylinder rod, the flange clamp pawl 8 moves in a direction to clamp the flange material 1.

As shown in FIGS. 1 and 6, a web material positioning device 30 is provided with a pair of left and right side rollers 11 which approach and position (center) the web material 2 from right and left.
And a side roller handle 10 for moving the side roller 11 in the left-right direction. The rotation of the side roller handle 10 is converted into a lateral movement of a nut 32 screwed with a screw shaft 31 that rotates with the rotation of the side roller handle 10, and transmitted to a plate 33 fixed to the nut 32, By transmitting the rotation to the rotation shaft 35 of the side roller 11 by the plate 34 fixed to 33, the movement of the side roller 11 in the left-right direction is transmitted. Reference numeral 36 denotes a rotation transmitting means (timing belt, chain, or the like) for transmitting the rotation of the lower screw shaft 31 to the rotation of the upper screw shaft. The web material positioning device 30 moves the welding torch 15 together with the side rollers 11,
It moves in the longitudinal direction of the welding worktable 6. In FIG. 1, 9
A free centering guide moves the web material 2 in accordance with the length of the material and sets it on the flange material 1.

As shown in FIGS. 1 and 6, the upper pressing device 40 includes an upper pressing roller 12 for pressing the web material 2 or the flange material 1 from above, and a vertically extending upper and lower roller for supporting the upper pressing roller 12 rotatably. Movable frame 41
An air cylinder 42 for vertically moving the frame 41;
Having. The upper pressing roller 12 presses the web material 2 from above and welds the lower flange of the T-bar (welding of the H-beam) when welding the lower flange material and the web material (welding of the T-beam). , Press the flange of T-bar from above. The upper holding device 40 moves in the longitudinal direction of the welding worktable 6 in conjunction with the movement of the welding torch 15 together with the upper holding roller 12.

The welding torch 15 is a welding torch support device 50.
It is supported by. The welding torch support device 50 is shown in FIG.
As shown in FIGS. 5 to 7, an arc-shaped rail 51 that supports the welding torch 50 in a rotatable manner is provided. by this,
After one side is welded, it is turned and the opposite side is welded, so that even one torch can be welded. Turning is not necessary when two torches are installed. Welding torch support device 5
0 is a position adjusting mechanism 52 for adjusting the position of the welding torch 15 in the axial direction of the welding torch (in the radial direction of the arc-shaped rail 51).
And a cylinder 5 for moving the arc-shaped rail 51 in the vertical direction.
Three. The welding torch 15 is supported by a welding torch support device 50 so as to be replaceable.
It is possible to select and mount a welding torch such as G or laser. The welding torch support device 50 is a welding torch 1
Every 5 moves in the longitudinal direction of the welding worktable 6.

As shown in FIGS. 6 and 7, the traveling device 60 includes a web material positioning device 3 including a side roller 11.
An electric traveling device for driving the upper holding device 40 including the upper holding roller 12, the welding torch 15 and the welding torch support device 50 in the longitudinal direction of the welding worktable 6. The traveling device 60 includes a guide 61 slidable on the guide rail 16, a movable member, for example, a motor 62 with a reduction gear attached to the welding torch support device 50, a pinion 63 fixed to the motor shaft and rotating, and Side, for example, a rack 64 fixed to the floor. By rotating the motor 62 forward and backward, the movable side is moved in the longitudinal direction of the welding worktable 6 with respect to the fixed side.

Next, the operation of the apparatus according to the embodiment of the present invention will be described. The front end stopper 7 of the welding worktable 6 is raised, and the flange material 1 is applied to the front end stopper 7 with the front end thereof, and the flange material 1 is set on the welding worktable 6. The air cylinder 14 is actuated to the pulling side, and the flange material 1 is centered in the width direction by the flange clamp claws 8 and the flange material 1 is clamped.

The free centering guide 9 is moved in accordance with the length of the material, the web material 2 is set on the flange material 1, the side roller handle 10 is rotated, and the side rollers 11 are brought into contact with the web material 2 from right and left. The web material 2 is positioned. The tip stopper 7 and the upper pressing roller 12 are lowered, and the web material 2 is pressed and fixed. While moving the welding torch 15 in the longitudinal direction, left and right (L and R) welding is performed, or after welding on one side, the welding torch is turned to perform the opposite side welding. After the welding is completed, the welding torch 15 is returned to the original position, the clamp claw 8, the side roller 11, and the tip stopper 7 are opened, and the T-shaped steel (or T-bar) is moved. In the case of a T-shaped steel, a lightweight T-shaped steel is manufactured as described above.

In the case of H-section steel, the following welding is further performed. Similarly to the above-mentioned T-bar production, the lower flange material 1 for H-section steel is set on the welding worktable 6 and clamped by the flange clamp claws 8. Next, the T-bar is set on the lower flange 1 and the T-bar is positioned by the side roller 11 in the same manner as in the manufacture of the T-bar. The tip stopper 7 and the upper pressing roller 12 are lowered, and the upper flange material of the T-bar is pressed and fixed. While moving the welding torch 15 in the longitudinal direction, left and right (L and R) welding is performed, or after welding on one side, the welding torch is turned to perform the opposite side welding. After welding is completed, the welding torch 15 is returned to the original position, the clamp claws 8, the side rollers 11, and the tip stopper 7 are opened, and the H-section is moved. Thus, a lightweight H-section steel is manufactured.

In the above-described fabrication of the section steel, the web material 2 or T
No tack welding is performed between the bar and the flange material 1.
Therefore, the work for tack welding is reduced as compared with the related art. Further, by making the diameter of the side roller 11 different between the left and right in the above-described apparatus, it is possible to perform welding and assembling of asymmetric H and T-section steels. In addition, although welding is mainly performed, it can be used without specifying the type of metal, non-ferrous metal, plastic, and the like.

[0017]

According to the present invention, welding can be performed without tack welding, productivity can be greatly improved, and cost can be reduced. Can be. The productivity improvement by reducing the man-hours for tacking and welding was 250%. According to the second aspect of the present invention, since the flange clamping claws for clamping the flange material from the left and right are provided, the flange material can be positioned in the left-right direction simultaneously with the clamping. According to the third aspect of the present invention, since the traveling device is an electric traveling device, the traveling speed and traveling distance can be controlled more easily than in the case of a cylinder. According to the fourth aspect of the present invention, since the welding torch support device has the arc-shaped rail that supports the welding torch so that the welding torch can pivot, both welding can be performed with one welding torch. According to the fifth aspect of the present invention, the welding torch is exchangeably supported by the welding torch support device, so that the welding torch can be replaced with a torch such as MIG, TIG, or laser.

[Brief description of the drawings]

FIG. 1 is a front view of an apparatus for temporarily welding a section steel without tacking according to an embodiment of the present invention.

FIG. 2 is a front view of a flange positioning clamp device of the shape steel tack-less welding assembly device according to the embodiment of the present invention.

FIG. 3 is a side view of the flange positioning clamp device of FIG. 2;

FIG. 4 is a plan view of the flange positioning clamp device of FIG. 2;

FIG. 5 is a front view of a welding torch and a welding torch support device of the sectional steel bar tackless welding assembly device according to the embodiment of the present invention.

FIG. 6 is a side view of a web material positioning device, an upper pressing device, a welding torch, and a welding torch support device of the section steel tack-less welding assembly device according to the embodiment of the present invention.

FIG. 7 is an enlarged front view of a welding torch, a welding torch support device, and a traveling device of the shaped steel tack-less welding assembly device according to the embodiment of the present invention.

FIG. 8 shows steps 1, 2, and 3 of a conventional welding assembly with a shape steel tack.
It is a perspective view of.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Flange material 2 Web material 6 Welding work table 7 Tip stopper 8 Flange clamp claw 11 Side roller 12 Upper pressing roller 13 Cam plate 14 Air cylinder 15 Welding torch 16 Guide rail 20 Flange positioning clamp device 30 Web material positioning device 40 Upper pressing device Reference Signs List 50 welding torch support device 51 arc-shaped rail 60 traveling device 61 guide 62 motor with reduction gear

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) B23K 37/04 B23K 37/04 Y (72) Inventor Katsuji Motoe 5th, Yonbancho, Chiyoda-ku, Tokyo 9 Topy Industries Co., Ltd. (72) Inventor Noriichi Uchiyama 12 Chidori-cho, Ichikawa-shi, Chiba Prefecture Topy Metalli Co., Ltd. (72) Inventor Kenji Sato 12 Chidori-cho, Ichikawa-shi, Chiba Prefecture Topy Metalli Co., Ltd. (72) Invention Person Hiromi Chiba 12 Chidori-cho, Ichikawa City, Chiba Prefecture Topy Metalli Co., Ltd. F-term (reference) 4E081 YR02 YR03 YR05 YX02 YX03 YX07 YY13 YY14 YY18

Claims (5)

[Claims] 1. A flange positioning clamp device for positioning and clamping a flange material, a web material positioning device having a side roller for positioning the web material, and an upper pressing device having an upper pressing roller for pressing the web material or the flange material from above. And a welding torch supporting device for supporting the welding torch and the welding torch; and a traveling device for moving the welding torch and the welding torch supporting device in the longitudinal direction of the flange material and the web material. . 2. The apparatus of claim 2, wherein
2. The assembly as claimed in claim 1, comprising: a flange clamping claw for clamping the flange material from the left and right; a cam plate slidably engaging with the flange clamping claw; and an air cylinder for driving the cam plate. apparatus. 3. The welding apparatus according to claim 1, wherein the traveling device comprises an electric traveling device for driving the side roller, the upper holding roller, the welding torch and the welding torch support device. 4. The welding assembly device according to claim 1, wherein the welding torch support device has an arc-shaped rail for pivotally supporting the welding torch. 5. The welding assembly device according to claim 1, wherein the welding torch is replaceably supported by the welding torch support device.