JP5806602B2 - Longi distribution material mounting device - Google Patents

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a longi distribution material mounting apparatus that positions and welds a steel material longge at a predetermined position on a steel plate material.

  As this type of Longi distribution material attaching device, for example, there is one known from Patent Document 1.

JP 2002-114480 A

  The apparatus according to Patent Document 1 includes a main beam suspended from an overhead crane via two lifting / adjusting mechanisms and the like, and this main beam is equipped with an electromagnetic adsorber, a side clamper, a welder, and the like. Has been. In this apparatus, the positioning and welding operation of the longe is as follows.

  That is, the surface of the long side of the longi placed in the longi yard is adsorbed with an electromagnetic adsorber, lifted by hoisting up to stop the longe at a predetermined height, and the long side surface of the longi with the side clamper Hold and set the longe vertically. Next, the long crane is moved to the vicinity of the marking position on the plate by the cooperation of the overhead crane and the lifting mechanism, and the position of the main beam is adjusted by the adjusting mechanism so that the lowermost end of the long is parallel to the marking position. To do. At this time, the longe is stopped at a height position where the lowermost end is slightly separated from the upper surface of the plate.

  Next, only one side of the main beam is lowered by one of the two raising / lowering mechanisms and stopped so that the lower end of the long beam touches the plate material. After correctly aligning with the marking position, the temporary beam is temporarily moved temporarily. Weld and weld. After the precise alignment of the longi with the marking position of the long beam is performed again by fine adjustment of the main beam, the main beam is lowered only by the other lifting mechanism. As a result, the entire longe has landed on the plate. Then, after the energization to the electromagnetic attractor is cut off, fillet welding between the longe and the plate material is performed with a required welding machine, and tack welding is performed over a predetermined length for each welding machine.

By the way, the plate material is, for example, a large plate of 20 m × 30 m, and the longe is a long strip of 20 to 30 m, and both have some bending and warping.
For this reason, when the longe is placed on the plate, there is a portion where the lowermost end of the longe is completely in contact with the upper surface of the plate and a portion where there is a gap between the lowermost end of the longe and the upper surface of the plate. As a result, there is a problem that it is not possible to appropriately weld the longi to the plate material.

  The present invention has been made in view of the above-described problems. When positioning and welding a longe at a predetermined position on a plate material in a predetermined posture, it is ensured that a gap is generated between the plate material and the longi. Accordingly, it is an object of the present invention to provide a longi distribution material mounting apparatus that can appropriately prevent the longi from being welded to the plate material.

In order to achieve the above object, a longi distribution material mounting device according to the present invention includes:
A main beam extending in the longitudinal direction of the longe above the longe;
An elevating bracket that is guided by a linear guide mechanism attached to the main beam so as to be movable up and down and supported by being suspended from the main beam via a pair of air cylinders arranged in a direction straddling the longe,
A pair of plate material adsorbing tools that are suspended on the lower surface side of the lifting bracket and are disposed so as to straddle the longe, and adsorb the plate material,
A longage pressing tool that is mounted on the lifting bracket so as to be able to protrude toward the upper surface of the longe, and applies a pressing force to the longe;
When the pressing force is applied from the longi pressing tool to the longe in a state where the plate material is adsorbed by the plate material adsorbing tool, the air cylinder is set in a free and expandable state. First invention).

In the present invention, the longi pressing tool is composed of a pressing bar extending in the vertical direction and a pressing seat mounted on the lower end side of the pressing bar via a spherical bearing. ( Second invention).

In the present invention, the plate material adsorbing tool may be configured to include a magnet body that can be tilted by a spherical bearing ( third invention).

According to the present invention, when positioning and welding a longe at a predetermined position on a plate material, a pressing force is applied from the longi pressing tool to the longe while the plate material is adsorbed by the pair of plate material adsorption tools. Runode, between the plate member and the longitudinals can be reliably prevented generation of a gap, it is possible to appropriately perform welding longitudinals to plate.
Further , the pressing force by the longi pressing tool and the reaction force by the pair of plate material adsorbing tools are in a force relationship that cancel each other , and when the pressing force is applied to the longe as described above, a pair of air cylinders Since it is in a free state that can be expanded and contracted , no extra force acts on the main beam or the like.

By adopting the configuration of the second invention, it is possible to reliably apply a pressing force to the longe even if the center position with respect to the longe is slightly shifted.

By adopting the configuration of the third invention, the plate material can be adsorbed with an extremely simple configuration, and even if the plate material is slightly bent or the plate material is slightly deformed, they are absorbed to ensure the plate material. Can be adsorbed on.

The front view of the Longi distribution material mounting device concerning one embodiment of the present invention FIG. 1 is an enlarged view of a portion A in FIG. 1, a view of a longage adsorption state (a), an enlarged view of arrow BB in FIG. Standby state diagram (c) 1. It is a DD arrow enlarged view of FIG. 1, and the standby state figure before the pressurization operation | movement of a pressurization unit (a), and E arrow view of (a) (b) Explanatory diagram of pressurizing operation of pressurizing unit (1) Explanatory diagram of pressurizing operation of pressurizing unit (2)

  Next, a specific embodiment of the longi distribution material mounting device according to the present invention will be described with reference to the drawings.

<Outline description of Longi distribution material mounting device>
1 is a L or T type (T type in this example) in a predetermined posture at a predetermined position on a plate (steel plate) 3 placed on a conveyor 2. Is a device that positions and welds a longe (steel material longe) 4, and includes a crane girder 6 that can run in the Y-axis direction and extend in the X-axis direction by Y-axis drive mechanisms 5, 5. ing. On the crane girder 6, two trolleys 7 and 7 are installed so as to be able to run in the X-axis direction with a predetermined interval therebetween.

<Description of main beam>
Each trolley 7 is equipped with an elevating mechanism 8, and a main beam extending in the X-axis direction via a joint mechanism 9 and a Y-axis adjusting mechanism 10 on the lower end side of the elevating column 8 a of the elevating mechanism 8. 11 is suspended.
The main beam 11 is moved in the X-axis direction by the trolleys 7, 7, moved in the vertical direction (Z-axis direction) by the elevating mechanisms 8, 8, and can be tilted around the X-axis by the joint mechanisms 9, 9. It is adjusted and moved in the Y-axis direction by the axis adjusting mechanisms 10 and 10.

<Description of main beam equipment>
The main beam 11 includes 8 longi lifting units 12, 12,..., 4 centering units 13, 13, 13, 13, 3 welding units 14, 14, 14 and 11 pressurizing units. Units 15, 15,... Are equipped in a predetermined arrangement.

<Outline explanation of Longi lifting unit>
As shown in FIG. 2A, the longage lifting unit 12 includes an electromagnetic adsorber 21 that adsorbs the longi 4 by the action of electromagnetic force. The electromagnetic attractor 21 is supported by the main beam 11 via a chain hoist 22 so as to be movable up and down. Further, the electromagnetic attractor 21 is supported by being suspended from the main beam 11 via a pair of spring balancers 23, 23 arranged in parallel in the X-axis direction with the chain hoist 22 interposed therebetween, and these spring balancers 23, 23 are supported. It is kept parallel to the X-axis direction by the action of the equilibrium forcing force by.

<Outline of centering unit>
As shown in FIG. 2B, the centering unit 13 includes a side clamper 25 provided on the main beam 11 via a two-stage positioning mechanism 24.
The side surface clamper 25 serves to hold the longe 4 vertically by sandwiching the long side surface of the longe 4 between the pressing roller 25a and the supporting roller 25b. The height position of the side clamper 25 is positioned in two stages according to the long side length of the longe 4 by the two-stage positioning mechanism 24.

<Overview of welding unit>
As shown in FIG. 2C, the welding unit 14 includes a base 27 that is suspended from the main beam 11 via an X-axis drive mechanism 26.
The base 27 is provided with a torch base 29 via an elevating mechanism 28, and the torch base 29 is provided with a leg member 31 that is pushed out by the push-out mechanism 30 so as to sandwich the longe 4 in the Y-axis direction. A welding torch 32 for welding a corner (crossing corner) between the plate material 3 and the longe 4 is provided at the lower end of 31.
In this welding unit 14, fillet welding between the plate material 3 and the longe 4 can be performed at a predetermined pitch, and tack welding can be performed over a predetermined length.

  Next, the configuration of the pressure unit 15 will be described with reference to FIG.

<Overview of pressurizing unit>
The pressurizing unit 15 is configured by combining a reaction force applying mechanism 33 and a long press mechanism 34.

<Description of reaction force application mechanism>
The reaction force application mechanism 33 includes a lifting bracket 35. The elevating bracket 35 is guided up and down by a linear guide mechanism 36 attached to the main beam 11 and is connected to the main beam 11 via a pair of air cylinders 37 and 37 arranged at a predetermined interval in the Y-axis direction. Suspended and supported. The lifting bracket 35 is guided and lowered by the linear guide mechanism 36 by the extension operation of the pair of air cylinders 37, 37, while the lifting bracket 35 is moved by the linear guide mechanism by the contraction operation of the pair of air cylinders 37, 37. It is guided by 36 and raised.

<Description of plate material adsorbing tool>
A pair of plate material adsorbing tools 38, 38 are suspended from the lower surface side of the elevating bracket 35. These plate material adsorbing tools 38, 38 are juxtaposed in the Y-axis direction with a sufficient distance to receive the longi 4 placed along the X direction on the plate material 3 so as to be sandwiched therebetween.
Each plate material adsorbing tool 38 is configured by attaching a magnet body 41 via a spherical bearing 40 to the lower end side of a pull-up bar 39 extending in the vertical direction. The magnet body 41 is made of a strong electromagnet that has a rectangular parallelepiped shape that is long in the X-axis direction (see FIG. 3B).
The pull-up bar 39 is provided with a spring retainer flange portion 39a at a position above the lower end by a predetermined distance, and a compression coil spring 42 is mounted between the spring retainer flange portion 39a and the magnet body 41. Thereby, even if the magnet body 41 is tilted with respect to the pull-up bar 39 via the spherical bearing 40, the magnet body 41 can be returned to the horizontal state by the elastic repulsion force from the compression coil spring 42.
According to the plate material adsorbing tool 38, the plate material 3 can be adsorbed with a very simple configuration. Even if the plate material 3 is slightly bent or the plate material 3 is slightly deformed, they are absorbed and the plate material 3 is absorbed. Can be reliably adsorbed.

<Description of Longi pressing mechanism>
The longi pressing mechanism 34 is a device that presses the longe 4 against the plate member 3, and includes a longi pressing tool 44 that is attached to the lifting bracket 35 via the speed reducer 43. This longi pressing tool 44 is a rod-like member that is arranged so as to protrude from the inside of the lifting bracket 35 toward the upper surface of the longe 4 through an insertion hole 35a provided in the lower surface of the central portion of the lifting bracket 35, and in the vertical direction. A pushing bar 44a that is extended and has a threaded portion on its outer periphery, and a pushing seat 44c that is provided on the lower end side of the pushing bar 44a via a spherical bearing 44b and is pressed against the upper surface of the longage 4. It is comprised by. According to this longi pressing tool 44, even if the center position with respect to the longi 4 is slightly shifted, it is possible to reliably apply a pressing force to the longi 4.
The reduction gear 43 is not described in detail in the drawings, but a worm gear provided integrally with an input shaft to which the rotational power from the electric motor 45 is input, and a screw of the pressing rod 44a that meshes with the worm gear. And a nut member that is screwed into the portion.

  In this longi pressing mechanism 34, the unidirectional rotational power from the electric motor 45 is transmitted to the pressing rod 44 a via the speed reducer 43 by the one-way rotational operation of the electric motor 45. As a result, the longi pressing tool 44 is lowered toward the upper surface of the longi 4. On the other hand, by the rotational operation in the other direction of the electric motor 45, the rotational power in the other direction from the electric motor 45 is transmitted to the pressing rod 44a via the speed reducer 43. As a result, the longage pressing tool 44 is raised toward the inside of the lifting bracket 35.

  The positioning, pressurizing, and welding operations of the longi 4 by the longi distribution material mounting device 1 configured as described above will be described below mainly with reference to FIGS. 1, 2 (c), 4, and 5. .

<Description of longi positioning operation: see FIG. 1>
First, the crane girder 6 is run in the Y-axis direction by the Y-axis drive mechanisms 5 and 5 to move the longi distribution material mounting device 1 to the longi place not shown, and the short side of the longe 4 placed in the longi place Is attracted by an electromagnetic attracting device 21 (see FIG. 2A), is lifted by hoisting 22 (see FIG. 2A), and the longe 4 is stopped at a predetermined height. (See (b)), the long side 4 is held vertically while sandwiching the long side surface of the long point 4.
Next, the longi 4 is moved to the vicinity of the marking position of the plate 3 by the cooperation of the crane girder 6 and the elevating mechanisms 8 and 8 by the Y-axis drive mechanisms 5 and 5, and the lowermost end of the longe 4 is parallel to the marking position. The position of the main beam 11 is adjusted by the Y-axis adjusting mechanisms 10 and 10 so that At this time, the longest end 4 of the longge 4 is stopped at a height position slightly separated from the upper surface of the plate 3.
Next, only one side of the main beam 11 is lowered by one of the two lifting mechanisms 8 and 8 so that the lower end of the longe 4 touches the plate 3 and is correctly aligned with the marking position. Then, it is tack welded manually. After the precise alignment of the longe 4 to the marking position is performed again by fine adjustment of the position of the main beam 11, the main beam 11 is lowered only by the other of the two lifting mechanisms 8, 8. Let As a result, the entire longi 4 has landed on the plate 3.

<Description of Longe pressurization operation: See FIGS. 4 and 5>
Next, as shown in FIG. 4, the pair of air cylinders 37, 37 are extended to lower the elevating bracket 35, and the magnet bodies 41, 41 of the pair of plate material adsorbing tools 38, 38 come into contact with the plate material 3. Then, the lowering operation of the lifting bracket 35 is stopped.
Next, the electric motor 45 is rotated in one direction to lower the longage pressing tool 44 toward the upper surface of the longage 4, and as shown in FIG. When the upper surface comes into contact with the upper surface, the lowering operation of the longi pressing tool 44 is temporarily stopped.
Next, the electric motor 45 is rotationally operated in one direction in a predetermined direction to push down the longage pressing tool 44 that is in contact with the upper surface of the longi 4. Thus, as the pressing force is applied to the longe 4, a reaction force that opposes the pressing force is applied to the plate material 3 via the pair of plate material adsorbing tools 38, 38. Note that the air cylinders 37 and 37 are for raising and lowering the lifting bracket 35, and are in a free state that can be expanded and contracted during the pushing and pulling operation. That is, the air cylinders 37 and 37 serve as cushions so that no extra load acts on the main beam 11, the elevating mechanism 8, the joint mechanism 9, the Y-axis adjusting mechanism 10, and the like.
In this way, the longe 4 is pressed against the plate 3 by the long press mechanism 34, and a reaction force against the pressing force is applied to the plate 3 by the reaction force applying mechanism 33, thereby creating a gap between the plate 3 and the longe 4. Without causing the entire longage 4 to adhere to the plate 3.

<Description of Longe Welding Operation: See FIG. 2 (c)>
And after interrupting | blocking the electricity supply to the electromagnetic adsorption device 21 (refer Fig.2 (a)), fillet welding with the board | plate material 3 and Longi 4 is performed by the three welding units 14,14,14, and each welding unit is carried out. Tack welding is carried out over a predetermined length per 14.

<Description of effects>
In the longi distribution material mounting apparatus 1 according to the present embodiment, when the longi 4 is positioned and welded to a predetermined position on the plate 3 in a predetermined posture, the upper surface of the longi 4 is pressed by the longi pressing tool 44, The plate material portions on both sides of the longi 4 are adsorbed by the pair of plate material adsorbing tools 38, 38 disposed across the longi 4 on both sides of the longage pressing tool 44. As a result, it is possible to more reliably prevent the gap between the plate material 3 and the longi 4 by pressing the longe 4 against the plate material 3 and at the same time applying a reaction force against the pressing force to the plate material 3. Further, the welding of the longi 4 to the plate material 3 can be performed more appropriately.
In addition, since the pressing force by the longi pressing mechanism 34 and the reaction force by the reaction force applying mechanism 33 are in a force relationship that cancel each other, for example, the main beam 11, the elevating mechanism 8, and the joint mechanism 9 constituting the longi distribution material mounting device 1. No extra force acts on the Y-axis adjusting mechanism 10 or the like.

  As mentioned above, although the longi distribution material mounting apparatus of this invention was demonstrated based on one embodiment, this invention is not limited to the structure described in the said embodiment, In the range which does not deviate from the meaning, the structure Can be changed.

  For example, there may be a mode in which a suction cup body is used instead of the magnet body 41 and the plate material 3 is attracted by a vacuum force.

  The longi distribution material mounting device of the present invention can reliably prevent a gap from being generated between the plate material and the longi when positioning and welding the longi at a predetermined position on the plate material in a predetermined posture. Since it has the characteristic that welding of the longe to the plate material can be performed appropriately, it can be suitably used for the purpose of assembling a steel structure on a ship bottom, a deck, a bridge or the like.

DESCRIPTION OF SYMBOLS 1 Longi distribution material mounting apparatus 3 Plate material 4 Longi 33 Reaction force giving mechanism 34 Longi pressing mechanism 38 Plate material adsorption tool 39 Lifting bar 40 Spherical bearing 41 Magnet body 44 Longi pressing tool 44a Pushing rod 44b Spherical bearing 44c Pushing seat

Claims (3)

In the longi distribution material mounting apparatus that positions and welds the longe at a predetermined position on the plate material,
A main beam extending in the longitudinal direction of the longe above the longe;
An elevating bracket that is guided by a linear guide mechanism attached to the main beam so as to be movable up and down and supported by being suspended from the main beam via a pair of air cylinders arranged in a direction straddling the longe,
A pair of plate material adsorbing tools that are suspended on the lower surface side of the lifting bracket and are disposed so as to straddle the longe, and adsorb the plate material,
A longage pressing tool that is mounted on the lifting bracket so as to be able to protrude toward the upper surface of the longe, and applies a pressing force to the longe;
A longi distribution material mounting characterized in that the air cylinder is in a free and expandable state when a pressing force is applied from the longi pressing tool to the longi while the plate material is adsorbed by the plate material adsorbing tool. apparatus. 2. The Longi arrangement according to claim 1 , wherein the Longi pressing tool includes a pressing bar extending in the vertical direction and a pressing seat attached to a lower end side of the pressing bar via a spherical bearing. Material mounting device. The longi distribution material mounting device according to claim 1 , wherein the plate material adsorbing tool includes a magnet body that can be tilted by a spherical bearing .

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