JPH0560685U - Support tilting device for welding work - Google Patents

Abstract

(57) [Summary] [Structure] When performing fillet welding on a workpiece C in which flange materials B are temporarily attached to both side edges of the web material A, a supporting tilt for welding work that tiltably supports the above-mentioned workpiece. In the device, a pair of left and right frame bodies 7 are provided on both sides of a rotary shaft body 4 which is rotatable about a horizontal axis so as to be close to and away from each other via a swing link body 5, 7
In addition, a chain 9 for supporting and conveying the work is wound endlessly. [Effect] Both frame bodies that support the H-shaped work are placed so that they can be swung in the vertical plane by the rotary shaft. Welding of meat welds can be done and therefore the welding operation can be done very quickly and easily,
That is, labor saving can be achieved.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a supporting tilting device for a welding work that facilitates fillet welding when manufacturing an H-shaped steel aggregate.

[0002]

[Prior Art]

 Usually, when manufacturing a steel aggregate having an H-shaped cross-section, the flange material is welded to the both edge portions of the web material by fillet welding.

Conventionally, when a flange material is welded to both end edges of a web material, as shown in FIG. 3, a work (workpiece) C in which a flange material B is temporarily attached to both end edges of the web material A is inclined. Of the four fillet welding points that are placed on the support jig 51 having the support surface 51a, first, only one of the fillet welding points where downward welding is possible is performed by the automatic welding device 52, for example, by submerged arc welding. , Welding is performed from above. Then, when the welding at one location was completed, the work C was then lifted by a crane and inverted, and the remaining welding locations were sequentially welded in the same manner as above.

[0004]

[Problems to be solved by the device]

 However, according to the welding work as described above, when manufacturing one H-shaped steel aggregate, the step of hoisting the work C by the crane and inverting it must be performed at least three times, which is very troublesome. There was a problem that it was a labor-intensive work.

Therefore, an object of the present invention is to provide a supporting and tilting device for a welding work which can solve the above problems.

[0006]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, a supporting and tilting device for welding work of the present invention is capable of tilting the work when performing fillet welding of a work in which a flange material is temporarily attached to both side edges of a web material. A device for supporting a rotary shaft body rotatably around a horizontal axis, and on both sides of this rotary shaft body, through swing link bodies swingably mounted at a plurality of positions thereof, A pair of left and right frame bodies are provided so that they can move closer to and away from each other, and a chain for supporting and transporting a work is endlessly wound around each of these frame bodies, and a chain drive device for driving each of these chains is provided to rotate the above A rotation drive device for rotating the shaft body around the horizontal axis is provided, and a swing device for swinging the swing link body to move the pair of left and right frame bodies toward and away from each other is provided.

[0007]

[Action]

 In the above configuration, when the fillet welding of the work in which the flange material is temporarily attached to both end edges of the web material is performed, the work is placed and supported on both frame bodies and tilted to one side, and then the upper surface side After welding one fillet weld, tilt it in the opposite direction and weld the other fillet weld on the top side. After that, if the chain of the frame body is driven, the work can be transported to the next work stage.

As described above, when the fillet weld portion of the work is welded, it is not necessary to use a crane to change the welding location, and labor can be saved.

[0009]

【Example】

 Hereinafter, a supporting and tilting device for a welding work according to an embodiment of the present invention will be described with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a support frame, columns 2 are erected on the front and rear ends thereof, and a rotary shaft body 4 is mounted on the upper ends of both columns 2 via a bearing 3 to form a horizontal shaft 4. It is rotatably supported around the center.

A plurality of swing link bodies 5 are swingably supported on the rotary shaft body 4 at predetermined intervals via mounting pins 6 in the same plane, and each swing link body 5 is swingably supported. The elongated frame body 7 is connected to the distal end portion of the frame body 5 in parallel with the rotary shaft body 4 via connecting pins 8.

An endless chain 9 is provided on each of the frame bodies 7 to support a work C in which flange materials B are temporarily attached to both side edges of the web material A and to convey and move the work C in the direction of arrow a. A chain drive device (not shown, which is composed of, for example, a chain drive sprocket and an electric motor that rotates the drive sprocket) is provided for driving each of the chains 9 while being wound around There is.

Further, the rotary shaft body 4 has a cylinder device (an example of a rocking device, for example, an electric type or a hydraulic type) that rocks the rocking link body 5 at a position corresponding to each rocking link body 5. (Or an air type cylinder is used) 10 is provided, and by these cylinder devices 10, each rocking link body 5 is rocked as shown by an arrow b, so that a left and right pair is formed. The frame body 7 is moved toward or away from the frame body 7 to cope with the size of the work C to be supported.

Further, a rotary drive device 11 for rotating the rotary shaft body 4 within a range of a predetermined angle is provided. The rotary drive device 11 is composed of an arc gear 12 attached to one end of the rotary shaft body 4 and an electric motor 13 having a drive pinion (not shown) meshing with the arc gear 12. ing.

Therefore, by driving the electric motor 13 in the forward and reverse directions, the frame body 7 on which the work C is placed can be swung in the vertical plane as indicated by the arrow c.

An automatic welding device 21 is provided outside the frame bodies 7 and along the frame bodies 7. That is, at the left and right positions of the support frame 1, the moving guide members 22 are slidably provided in the slanting direction via the sliding bed 23 as shown by the arrow d, and the moving guide members 22 are provided. An automatic welder 24 that runs on the guide member 22 and automatically welds the fillet welded portion of the work C placed and supported on the both frame bodies 7 is arranged above.

The sliding bed 23 has a lower slide body 25 having an upward slant surface and a downward slant surface slidably in contact with the upper slant surface of the lower slide member 25 so as to be slidable on the lower slide member 25. And a motor 27 that slides the upper slide body 26 along the lower slide body 25 via a rack and pinion mechanism, for example.

Next, the work of welding the work will be described with reference to FIG. First, the work C, in which the flange material B is temporarily welded to both side edges of the web material A, is placed on the chain conveyor of the preparation stage 31.

Next, the work C is conveyed and moved onto both the frame bodies 7 of the supporting and tilting device in the first fillet welding stage 32 by this chain conveyor. Of course, at this time, the chains 9 provided on both frame bodies 7 are also driven.

Next, the rotary shaft 4 is rotated by the rotary drive device 11, and one of the upper surface side fillet welds of the transferred work C is tilted so that the automatic welding machine 24 can perform downward welding. After tilting at an angle, the automatic welder 24 is run to weld one of the fillet welds.

When the welding of the fillet weld is completed, the rotary drive device 11 tilts the rotary shaft 4 to the opposite side, and the automatic welder 24 causes the other of the upper face fillet welds to move. The welding is performed downward, and the other fillet weld on the upper surface side is welded by the automatic welding machine 24 arranged on the opposite side.

Next, when the fillet welding of both side edges on the upper surface side is completed, the chains 9 of both frame bodies 7 are driven in a predetermined direction and moved to the work reversing stage 33. Then, the work C reversed here is moved onto the frame body 7 of the supporting tilting device arranged on the second welding stage 34, and then the upper surface side is subjected to the same procedure as the first welding stage 32. The remaining fillet welded portion (which was the lower surface side in the first welding stage) is automatically welded.

After that, it is conveyed to the maintenance stage 35, the welding tabs and the like are removed, and then it is carried out from the welding line by a crane. Further, when the height of the work, that is, the height of the web material A is changed, if the swing link body 5 is swung by the cylinder device 10, the interval between the two frame bodies 7 is set to the web material A. Can be adjusted to the height of. In this case, if necessary, the position of the automatic welding machine 24 may be adjusted by sliding the upper slide member 26 of the sliding bed 23.

As described above, in performing fillet welding of a work in which the flange material is temporarily attached to both side edges of the web material, each time the welding location is changed, the work material is lifted by a crane. There is no need, and therefore the welding operation can be carried out very quickly and easily, i.e. labor saving. In addition, wasteful time such as waiting for a crane can be eliminated.

[0025]

[Effect of the device]

 As described above, according to the configuration of the present invention, both frame bodies for mounting and supporting the H-shaped workpiece are configured to be swingable in the vertical plane by the rotating shaft body, so that the crane is not used at the same place. Since the fillet welds can be welded at the upper and lower positions on one side of the work, the welding work can be performed very quickly and easily, that is, the labor can be saved. Further, since both the frame bodies are configured to be able to move toward and away from each other by the swinging device, it is possible to easily deal with the case where the height of the work is changed.

[Brief description of drawings]

FIG. 1 is an overall perspective view of a welding and work supporting and tilting device according to an embodiment of the present invention.

FIG. 2 is a block diagram showing steps of welding work in the embodiment.

FIG. 3 is a schematic side view illustrating a welding operation in a conventional example.

[Explanation of symbols]

 A web material B flange material C work 4 rotary shaft body 5 swing link body 7 frame body 9 chain 10 cylinder device 11 rotary drive device

Claims (1)

[Scope of utility model registration request] 1. A device for tiltably supporting a workpiece, wherein a flange material is temporarily attached to both side edges of a web material when the fillet welding is performed, the apparatus comprising a rotary shaft about a horizontal axis. A body is rotatably supported, and a pair of left and right frame bodies are provided on both sides of the rotary shaft body so as to be able to approach and separate from each other via swing link bodies that are swingably attached to a plurality of positions thereof. When a chain for supporting and conveying a work is endlessly wound around a frame body, a chain drive device for driving each of these chains is provided, and a rotary drive device for rotating the rotary shaft body around a horizontal axis is provided. At the same time, a swinging device for swinging the swinging link body to move the pair of left and right frame bodies closer to and away from each other is provided.