JPS631676Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for accurately holding aggregate constituting panel blocks in a material distribution section when assembling panel blocks constituting, for example, an oil storage ship.

For example, when building an oil storage ship, a large number of panel blocks constituting the outer skin and bulkheads are assembled in advance, and the panel blocks are joined together to complete large panels such as the outer skin and bulkheads of each tank compartment.
This is directly mounted on the construction dock, but these large panels are further assembled (totally assembled) on the ground to form a huge three-dimensional block that is then mounted (moved) on the construction dock. Conventionally known panel block assembly methods include the "loose material distribution method", "frame assembly method", "line welder (longitudinal attachment) and transformer material bulk material distribution method"
There are methods such as "(transformer material pre-attached) longitudinal material all-in-one insertion method," but all of these conventional methods are based on skin materials, and most of the equipment used is bulkheads, outer panels, etc. for each section. Since this method is intended for panels such as the following, it requires a large assembly space and has the disadvantage that it is difficult to automate assembly and welding. In other words, in conventional construction methods, in order to attach longitudinal material or transformer material on top of skin material,
Mechanizing (automating) all the assembly of longitudinal materials, transformer materials, and skin materials, or welding longitudinal materials, transformer materials, and skin materials (in the case of frame assembly method)
If you want to fully automate the welding of transformer material and skin material (in the case of longitudinal material pre-attaching), or the welding of longitudinal material and skin material (in the case of transformer material pre-attaching), these assembly equipment and welding equipment will need to be It is necessary to operate from above, and there is interference between these devices and interference between these devices and conventional transportation equipment such as cranes, so even if partial automation is possible within a narrow space, It has been difficult to completely automate the entire block.

Therefore, the present invention provides an aggregate holding device that can be used in a panel block assembly device that eliminates such drawbacks.The feature is that a large number of aggregates are placed at appropriate intervals in the aggregate distribution area. a reference side gripping claw is provided below the substrate of the material distributing section and whose tip portion can freely protrude above the substrate through a hole formed in the substrate;
A support rod is provided that extends horizontally from the lower end of the reference side gripping claw, and the through hole at the lower end is slidably fitted into the support rod, and the upper end is inserted through the hole formed in the board to attach the board. A movable side gripper that can freely protrude upward is provided, and a cylinder device is provided on the support rod to move the movable side gripper toward and away from the reference side gripper, and the support rod is raised and lowered to connect the reference side scissors and the movable side scissors. A lifting device is provided that allows claws to protrude above the substrate. According to this configuration, a plurality of aggregates required for assembling one block brought to the material distribution section are grasped, made to stand upright, and held accurately. This eliminates the risk of clamping failure when the held aggregate is clamped and lifted by the clamping device of the bulk material distribution device, and this eliminates the possibility of clamping failure. The material distribution work after the delivery of the materials can be completely automated using an automatic bulk material distribution device.

Hereinafter, one embodiment of the present invention will be described based on the drawings. This embodiment relates to an assembly apparatus for panel blocks 2 constituting a double bottom 1A of an oil storage ship 1 shown in FIG. In Figures 2 to 5, 3 indicates the first and second longitudinal members 2B and 2E.
In the material distribution section, as shown in FIGS. 4 and 5, a large number (10 in this embodiment) of longitudinal materials 2 are placed on the substrate 62 at appropriate intervals along the directions of arrows A and B.
It is configured to arrange materials B and 2E. 63
is a plurality of longitudinal material holding devices (four in this embodiment, 40 in total) arranged at appropriate intervals along the directions of arrows C and D at the distribution location of each of the longitudinal materials 2B and 2E under the substrate 62. It is composed of the following: That is, reference numeral 64 is a reference side gripping claw, the upper end of which projects upwardly from the substrate 62 through a hole 65 formed in the substrate 62. 66 is a support rod extending in the direction of arrow B from the lower end of the reference side gripping claw 64, 67 is a support rod whose through hole at the lower end is connected to arrow A,
It is fitted to be slidable in the B direction, and the upper end is connected to the substrate 62.
The movable side gripping claws protrude upward through the long hole 68 of the board 62, and the mutually opposing side surfaces 64A and 67A of both gripping claws 64 and 67 are along a vertical line, and hold the longitudinal materials 2B and 2E. Sometimes, the webs of the longitudinal materials 2B and 2E are made to stand upright. 69 is a threaded rod hanging from the boundary between the support rod 66 and the reference side gripping claw 64; 70 is a nut screwed onto the threaded rod 69; 71 is a large gear formed on the nut 70; It is rotatably supported by a fixed housing 72 via a bearing 73. A small gear 74 meshes with the large gear 71, and is rotatably supported by the fixed housing 72 via a bearing 75. 76 is a driven bevel gear fixed to the upper end of the spindle of each small gear 74; 77 is a rotating shaft extending above the driven bevel gear 76 in the directions of arrows C and D; 78 is fixed to the rotating shaft 77; a driving bevel gear meshing with the driven bevel gear 76;
79 is a drive motor that rotates the rotating shaft 77 in the forward and reverse directions;
A guide rod 0 hangs down from the free end of the support rod 66, and is supported by the fixed housing 72 via a bush 81 so as to be movable up and down. Reference numeral 82 denotes a ring 8 whose main body is fixed on the free end of the support rod 66 and whose piston rod is fitted onto the movable side gripping pawl 67.
A hydraulic cylinder is fixed to 3, and 84 is a hydraulic pipe 8.
This is a hydraulic unit for supplying hydraulic pressure to each hydraulic cylinder 82 via 5. In addition, in Figures 2 and 3, 4 is the second distribution part of floor material (or transformer material) <<horizontal aggregate>> 2C, and 5 is constructed by joining longitudinal materials 2B and 2E with a plurality of steel plates. A first assembly section for welding and assembling the skin materials <<skin materials>> 2A and 2D, and 6 a second assembly section for welding and assembling the floor material 2C and the first skin material 2A with the first longitudinal material. , 7 is the first longitudinal material 2B and the first
A third assembly section for welding and assembling the second skin material 2D with the second longitudinal material to the floor material 2C which has been welded to the skin material 2A; 8 indicates the first and second longitudinal materials 2B, 2E and the floor; It is a bulk material distribution device for conveying materials 2C in bulk, and includes the above-mentioned parts 3 to 3.
A pair of rail girders 9 arranged on both sides of 7,
A first truck 10 that can run freely on each rail girder 9 in the directions of arrows A and B, a pair of L-shaped posts 11 whose upper ends are supported by each truck 10, and through holes at both ends are fitted onto each post 11. A girder 12 that moves up and down along both posts 11 by a built-in drive device, and a plurality of rod-like bodies 13 and a frame that are suspended from the girder 12 and are movable along the girder 12 in the directions of arrows C and D. 14, a large number of longitudinal material clamping devices 15 disposed on one side 14A of each frame 14, and the other side 14 of each frame 14.
B and an automatic floor material clamping device (not shown) disposed on each rod-shaped body 13. Reference numeral 16 denotes a first reversing device provided in the first and second assembly sections 5 and 6, which includes a pair of substantially arc-shaped first guide rails with racks disposed on both sides of both assembly sections 5 and 6. 17, and a first inversion table 19 placed on the pedestal 18 of the first assembly section 5 before inversion.
Two guide rails are rotatably disposed on both sides of the inversion table 19, and each of the guide rails 1
7, a pinion 21 that is arranged concentrically with the upper guide roller 20 and meshes with a rack (not shown) in the first guide rail 17; By rotating the inversion table 19, the guide rail 17
and a drive device (not shown) that moves the reversing table 19 in the directions of arrows E and F along the arrows E and F to invert the reversing table 19. 36 is the second and third assembly parts 6, 7
It is a second reversing device provided in the first reversing device 16 and has almost the same structure as the first reversing device 16, and includes a second guide rail 37 with a rack, a second reversing table 38, a guide roller 39, a pinion 40, and It is comprised of a drive device (not shown) that rotates the pinion 40. The second guide rail 37 has second and third guide rails.
an inverted U-shaped part 37A with a rack disposed between the assembly parts 6 and 7; and a pair of upper and lower horizontal parts 37B extending horizontally from the end of the inverted U-shaped part 37A on the third assembly part 7 side. , 37C, and the upper horizontal part 37
A rack (not shown) is provided at B so that the pinion 40 meshes therewith, and the lower roller 39 is inserted into the lower horizontal portion 37C. 41 is a notch formed in the center of the first guide rail 17,
This first guide rail 17 is divided into an upper end portion 17A and a downstream portion 17B. A third guide rail 42 extends horizontally from above the notch 41 toward the third assembly section 7 and then descends downward to reach above the third assembly section 7; It is a V-shaped switching rail arranged to be movable in the vertical direction, and has a pair of rail parts 43A, 4.
3B, and in the state shown in FIG.
A and the downstream section 17B are made to communicate with each other, and when the switching rail 43 is lowered from this state, the upper rail section 43A connects the upstream section 17A and the third guide rail 42.
and communicate with each other. Reference numeral 44 denotes support carts movably disposed on rails 45 laid in the third assembly section 7 along the directions of arrows A and B, which support the lower surface of the second inversion table 38 and 2 This is to prevent the reversing table 38 from swinging. Reference numeral 22 denotes a line welder disposed on the side of the first assembly section 5, which includes a gate-shaped cart 24 that is movable in the directions of arrows G and H on rails 23 laid before and after the first assembly section 5; It consists of a large number of automatic welding machines 25 arranged on a gate-shaped truck 24 whose height positions and mutual spacing can be freely adjusted, and a distortion correction device and a skin applicator (not shown). 26 is the first assembly section 5
A pair of longitudinal material holding devices installed on both sides of the rail 27, which are laid along arrows G and H.
a second cart 28 that is movable thereon; and each second cart 2
The skin material 2 on the first inversion table 19 arranged at 8
It consists of a longitudinal material end gripper 29 that clamps the end of each longitudinal material 2B, 2E placed on A, 2D and fixes each longitudinal material 2B, 2E. Note that the ends 17C of both guide rails 17 facing the line welder 22 and the longitudinal material clamping device 26 are configured so that they can be removed from the main body of the upstream portion 17A and retracted into the recess 30 in the ground. Gate type trolley 24 and second trolley 2
It is made so that it does not interfere with the movement of 8. 31
is a floor material assembly device (positioning and supporting device) provided in large numbers in the second assembly section 6, and is a floor material assembly device (positioning and supporting device) provided in the second assembly section 6, and is a floor material assembly device (positioning and supporting device) installed on a rail 32 laid along a direction perpendicular to the moving directions E and F of the first reversing table 19. a third cart 33 disposed so as to be movable in the directions of arrows I and J, and each of the third carts 3
3, and a support device (not shown) that supports the floor material 2C movably placed on each third truck 33, and each pair of automatic welding machines 3 that is movable along both side edges of each third truck 33.
It is composed of 4. 46 is a finishing device disposed on the downstream side of the third assembly section 7, and includes a fixed main body 47, a finishing device 46 extending horizontally from the main body 47 toward the third assembly section 7, and It is composed of a large number of cantilever rods 48 arranged to sandwich the floor material 2C, and an automatic welding machine 49 that can freely run on each of the cantilever rods 48.

The assembly procedure of the panel block 2 will be explained based on the above configuration. First, the drive motor 79 is operated to move the rotating shaft 77, bevel gears 78, 76, gear 74,
The nut 70 is rotated forward and backward as appropriate through the screw rod 69, and both gripping claws 64,
67 to raise or lower both gripping claws 64, 6.
The length of the portion of No. 7 projecting upward from the substrate 62 is adjusted to match the height of the first longitudinal member 2B. Further, the piston rod of the hydraulic cylinder 82 is contracted to separate the movable side gripping pawl 67 from the reference side gripping pawl 64, resulting in the state shown by the solid line in FIG. Next, the ten first longitudinal materials 2B are brought above the first material distribution section 3 by an appropriate means such as an overhead crane, and each of the first longitudinal materials 2B is inserted between the mutually opposing gripping claws 64 and 67. and placed on the substrate 62. Next, the hydraulic unit 84 is operated to extend the piston rod of each hydraulic cylinder 82, and the movable side gripping pawl 67 is moved in the direction of arrow A to press against the web of the first longitudinal material 2B. 64 and 67 reliably hold each first longitudinal member 2B in an upright state. In addition, the floor material 2C is arranged in the second material arrangement section 4, and the first
Steel materials for forming the first skin material 2A are arranged on the inversion table 19. Next, after lowering the end 17C of the guide rail 17 into the recess 30, the line welder 22 is moved in the direction of arrow G, and the gate-shaped truck 24
The butt portions 35 of the plates constituting the skin material 2A fixed on the first reversing table 19 are butt-welded using an automatic welding machine for the butt portions (not shown) provided at . Next, the first cart 1 of the bulk material distribution device 8
0 in the direction of arrow A.
is brought above the second material distribution section 4. Next, girder 1
2 is lowered and the floor material 2C is grabbed by the other side 14B of the frame-like body 14 and the floor material automatic clamping device of the rod-like body 13. Next, the girder 12 is raised and the first truck 10 is moved in the direction of arrow A to be placed on the second assembly section 6. During this movement, each rod-shaped body 13 and frame-shaped body 14 are moved by arrows C and D, respectively.
direction to adjust the spacing between each floor material 2C to a predetermined value. Next, the girder 12 is lowered and each floor material 2C is placed on the third cart 33 of each floor material assembly device 31 arranged in advance at predetermined intervals. Next, each floor material 2C is supported by a support device provided on the third truck 33. Next, the bulk material distribution device 8 is returned above the first material distribution section 3, the girder 12 is lowered, and the longitudinal material clamping device 15 clamps each first longitudinal material 2B held by the grasping claws 64, 67. . Next, the girder 12 is raised, thereby lifting each of the first longitudinal members 12 at once. Next, the collective material distribution device 8 is brought above the first assembly section 5. During this time, each longitudinal material clamping device 15 is appropriately moved in the direction of arrow A or B to adjust the interval between each of the first longitudinal materials 2B to a predetermined value. Next, lower the girder 12 and
The longitudinal material 2B is placed on the first skin material 2A.
Next, each longitudinal material holding device 26 is moved in the direction of arrow G, and each first longitudinal material 2B on the first skin material 2A is
The end of each of the first
Fix the longitudinal material 2B. Next, the clamping of the first longitudinal material 2B by the longitudinal material clamping device 15 is released, the girder 12 is raised, and the collective material distribution device 8 is returned above the first material distribution section 3. Next, the line welder 22 is moved in the direction of arrow G, and while each first longitudinal material 2B on the first skin material 2A is supported by the support device, the first longitudinal material 2B and the first skin material 2A are attached to each automatic welding machine. Fillet welding is carried out linearly using No. 25. As a result, the first longitudinal member 2 shown in FIG.
A first skin material 2A with B is formed. Note that the above-described butt welding of the abutting portion 35 of the skin material 2A may be performed simultaneously with the fillet welding of the first longitudinal material 2B and the first skin material 2A. In this way, the line welder 22 only needs to be moved back and forth once, which reduces the number of steps by one. Next, the grasping of the first longitudinal material 2B by the gripper 29 is released, and both the longitudinal material clamping devices 26 and the line welder 22 are moved in the direction of arrow H. Next, guide rail end 1
7C is raised and joined to the main body of the upstream section 17A, and the switching rail 43 is brought into the state shown by the solid line in FIG. Next, rotate the pinion 21 to rotate the first inversion table 1.
9 in the direction of arrow E along the first guide rail 17, and invert the first skin material 2A with the first longitudinal material 2B fixed to the first inversion table 19 as shown in FIG. 6b. It is placed on the floor material 2C of the second assembly section 6. Next, the first skin material 2A is fixed to the floor material 2C by a fixing means. Then the first
The fixation state between the skin material 2A and the first inversion table 19 is released, the pinion 21 is reversed, and the first inversion table 19 is
is returned to the first assembly section 5. Next, the automatic welding machine 34 of each floor material assembly device 31 is moved along both side edges of the third truck 33 to fillet weld the first skin material 2A and each floor material 2C, as shown in FIG. 6b. A panel block semi-finished product 50 is obtained. Next, the second inversion table 38
is moved in the direction of arrow K along the second guide rail 37, reversed at its U-shaped portion 37A, and placed on the first skin material 2A of the second assembly section 6. Note that when the second inversion table 38 is raised, this second inversion table 3
8 is only placed on the support cart 44, the support cart 44 remains on the rail 45 as it is. Next, the fixed state between the floor material 2C and the third cart 33 is released, and the first skin material 2A is moved to the second inversion table 38.
Fixed to. Next, the second reversing table 38 is moved along the second guide rail 37 in the direction of arrow L and is reversed. When the lower guide roller 39 enters the lower horizontal portion 37C from the lower end of the inverted U-shaped portion 37A, the pinion 40 changes from the state in which it is meshed with the rack in the inverted U-shaped portion 37A to the rack in the upper horizontal portion 37B. The second reversing table 38 is placed on the support cart 44. Furthermore pinion 40
is rotated to bring the second inversion table 38 to the position shown by the solid line in FIG. 2, and then stopped. During this period, the second skin material 2D is butt welded on the first reversing table 19 of the first assembly section 5, and the longitudinal material clamping device 15 is used to weld the second skin material 2D onto the first material distribution section 3.
The second longitudinal material 2E held by the gripping claws 64 and 67 is clamped and brought to
E and the second skin material 2D are automatically welded, and as shown in Fig. 6C.
A skin material 2D with a second longitudinal material 2E shown in is obtained. Next, the switching rail 43 is lowered and the upper rail portion 43A is used to control the upstream portion 1 of the first guide rail 17.
7A and the third guide rail 42 are made to communicate with each other. Next, the first inversion table 19 is inverted while moving along the upstream section 17A and the third guide rail 42, and the second inversion table 19 fixed to the first inversion table 19 is
The second skin material 2D with the longitudinal material 2E is placed on the floor material 2C located in the third assembly section 7. Next, the second longitudinal material 2 is
Pull E downward to align the second skin material 2D and floor material 2C. Next, after returning the first inversion table 19 to the first assembly section 5, the pinion 40 is rotated to move the second inversion table 38 in the direction of arrow A.
As a result, each floor material 2C is inserted between each cantilever bar 48 of the finishing device 46. Next, when the torch of each automatic welding machine 49 reaches one end of each floor material 2C, the movement of the second reversing table 38 is stopped, and each automatic welding machine 49 is moved in the direction of arrow A. A welding machine 49 welds the floor material 2C and the second skin material 2D to obtain the panel block 2 shown in FIG. 6d. Note that the second skin material 2D and the floor material 2C are attached to each other by providing a plurality of attachment devices for gripping and attracting longitudinal materials on the side of the cantilever bar 48, and after the second reversing table 38 is moved in the direction of arrow A. You can do it. Next, the second reversing table 38 is moved in the direction of arrow B to separate each cantilever bar 48 from the panel block 2, and the panel block 2 and the second
The fixed state with the reversing device 38 may be released, and the panel block 2 may be lifted up by an overhead traveling crane or the like and transported to a predetermined location.

In the above embodiment, the assembly device for the panel blocks 2 constituting the double bottom 1A of the oil storage ship 1 has been described. However, when assembling the panel blocks constituting the ship side 1B or the deck part 1C, it is possible to assemble the panel blocks 2 in place of the floor material 2C. A transformer material is used, and the transformer material is assembled into the first skin material 1A with the first longitudinal material 2B in the second assembly section 6.
Just weld it on.

According to the above embodiment of the present invention, the longitudinal materials 2B and 2E are carried into the first material distribution section 3, the floor material <<transformer material>> 2C is carried into the second material distribution section 4, and the first assembly section 5 is carried in. Almost all processes after the steel plate is delivered can be automated (mechanized) relatively easily. This is because in the past, although it was possible to automate the process of distributing the longitudinal materials 2B and 2E on top of the skin materials 2A and 2D and welding them using a line welder, the process of arranging, positioning, holding, and welding the floor materials 2C after that was automated. Floor material 2C, skin material 2A, 2D, floor material 2C
When trying to automate the welding of floor materials 2B and 2E, in conventional construction methods, all devices must operate from above the block, so it is difficult to determine the material distribution position of floor material 2C (positioning is not limited to both ends). Welding and other devices interfere with each other in the air, and if this was to be avoided, each device would have to become extremely complex and expensive. In the example assembly device, the floor material 2C is welded to the skin materials 2A, 2D and the longitudinal materials 2B, 2E by automatic upward fillet welding, so there is space between each longitudinal space on both sides of each floor material 2C. positioning and holding devices are arranged (the whole is placed on a trolley to correspond to changes in the position of the floor material 2C, and each holding device can also be made in the form of a trolley to correspond to changes in the distance between longitudinal materials), It is possible to run an automatic welding device on the outside, and mechanization (automation) is possible relatively easily. In other words, since the floor surface on both sides of the floor material 2C can be used, an automatic welding device or the like can be placed here. With the conventional assembly method, it was possible to perform automatic welding within a narrow area surrounded by the floor material 2C and the longitudinal members 2B and 2E, but since it was necessary to move the equipment to the adjacent area each time, it was not possible to completely perform welding. (Comprehensive) automation is difficult, and if all of this were to be automated, there would be interference between various devices in the upper space, making the device complicated and expensive. In the embodiment of the present invention, since the space on the upper and lower surfaces of the block is effectively utilized and the assembly equipment is centrally provided, the assembly space can be minimized, and the assembly equipment is relatively simple. , it is possible to automate everything from assembly to welding, making it possible to save labor and make assembly work unmanned.

As described above, according to the aggregate holding device of the present invention, a plurality of aggregates brought to the material distributing section necessary for assembling one block can be grasped by the gripping claws, and the web can be held upright and accurately held. The movable side gripping pawl can be slid freely by fitting into the support rod provided at the lower end of the reference side gripping pawl.
Since the cylinder device moves closer to and away from the reference side gripping claws, it is possible to hold the aggregate upright with a simple structure using a single cylinder device and saving space.Moreover, the lifting device allows both scissor claws to pass through the holes in the board. Since it is provided so that it can freely protrude above the board,
The protruding length of both scissors can be adjusted according to the height of the aggregate to be held, so that the aggregate can be held appropriately. Furthermore, such work can be performed completely automatically.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, in which Fig. 1 is a cross-sectional view of an oil storage ship, Fig. 2 is a side view of a panel block assembly device, Fig. 3 is a plan view of the same device, and Fig. 4 is a cross-sectional view of an oil storage ship. 1 is a schematic plan view of the material arrangement section, FIG. 5 is a vertical sectional view of the main part, and FIGS. 6 a to 6 d are explanatory diagrams showing the assembly procedure of the panel block. 1...Oil storage ship, 2...Panel block, 2
A...first skin material, 3...first material distribution section, 4...
Second material distribution section, 5... First assembly section, 8... Bulk material distribution device, 15... Longitudinal material clamping device, 62...
Substrate, 63... Longitudinal material holding device, 64... Reference side gripping claw, 65... Hole, 66... Support rod, 67
...Moving side gripping claw, 68...Elongated hole, 79...Drive motor (lifting device), 82...Hydraulic cylinder (actuating device).

Claims (1)

[Scope of utility model registration request] A large number of aggregates are placed at appropriate intervals in the aggregate distribution area, and are placed below the substrate in the aggregate distribution area, and the upper end extends above the substrate through a hole formed in the substrate. A protruding reference-side gripping claw is provided, a support rod is provided that extends horizontally from the lower end of the reference-side gripping claw, and the through hole at the lower end slidably fits into the support rod, and the upper end extends above the support rod. A moving-side gripping claw is provided that can freely protrude upward from the substrate through a hole formed in the substrate, and a cylinder device is provided on the support rod to move the moving-side gripping claw toward and away from the reference-side gripping claw, and the supporting rod is raised and lowered. 1. An aggregate holding device characterized by being provided with an elevating device that causes reference side scissors and movable side scissors to protrude above a substrate.