JPH04254281A - How to build a double hull block - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for constructing a double-hull block for constructing a hull block having a double-hull structure.

0002

2. Description of the Related Art Some ships have a double-hull hull structure, such as a double-bottom ship.

[0003] Generally, when building such a hull,
The hull is constructed by constructing double hull blocks that are divided in advance and assembling these double hull blocks.

Conventionally, when constructing a flat double hull block, as shown in FIG.
Upper and lower panel blocks 3 and 4 are formed by welding longitudinal frame members 2 such as longitudinal ribs to the upper and lower panels, while transverse frame members 7 such as transformers having slots 5 and 6 formed in the upper and lower sides are fabricated in advance as shown in FIG. The vertical frame members 2 of the upper panel block 3 are inserted into the slots 5 above the horizontal frame members 7, and the horizontal frame members 7 are welded to form a hull block 8. There is a method of constructing a double hull block by inverting the structure, inserting the vertical frame members 2 of the lower panel block 4 into the slots 6 below the horizontal frame members 7 of the hull block 8, and then welding them together.

[0005]

However, in the above conventional method, the slots 5 and 6 of the transverse bone member 7 are
4, a notch 9 is formed through which the vertical frame member 2 is inserted, and when assembling the hull block 8,
The vertical frame members 2 can be inserted into the slots 5 while lowering the horizontal frame members 7 from above, and when assembling the double hull block 11, the inverted hull block 8 is lowered from above as shown in FIG. while slot 6
The vertical bone member 2 can be inserted into the vertical bone member 2.

However, after inserting the vertical frame member 2 into the slots 5 and 6, as shown in FIG. There is a problem that an automatic welding machine cannot be used for welding 10.

Furthermore, in the conventional method, the panel blocks 3, 4 and the hull block 8 are formed by assembling the vertical rib members 2, the horizontal rib members 7, etc. on the large skin plate 1, so the assembly of the rib members 3, 4, It was difficult to automate various processes such as welding distortion correction.

[0008] The present invention was devised to solve the problems of the conventional method described above, and its purpose is to automate various processes in block construction and to automate the welding of bone members. To provide a method for constructing a double-hull block that is possible.

[0009]

[Means for Solving the Problems] In order to achieve the above object, the present invention consists of two panel blocks formed by welding vertical rib members to a skin plate, and horizontal rib members in which slots are formed at the top and bottom. , inserting the longitudinal rib members of one panel block into the slots of the transverse rib members and welding the transverse rib members to form a hull block, inverting the hull block, and inserting the longitudinal rib members into the slots of the other transverse rib member. In a method of constructing a double hull block in which the longitudinal frame members of the other panel block are inserted and welded, the panel block is formed of a plurality of modules obtained by dividing the skin plate thereof, and a groove is formed on the outer periphery of these modules. After that, these modules are welded together to form upper and lower panel blocks, and then the transverse frame members are welded to the upper panel block to form a hull block, and the lower panel block is assembled to the hull block. This is a construction method for a double hull block.

0010

[Operation] According to the above method, when a plurality of modules are joined together to form upper and lower panel blocks, the grooves around the modules are processed, so that a panel block with good precision can be formed, and the panel Since the hull block is constructed by assembling the horizontal frame members to the block, the hull block can be constructed with high precision.

Furthermore, by forming the panel block and hull block with good precision, when assembling the lower panel block to the hull block, the panel block can be horizontally moved into the slot of the horizontal frame member of the inverted hull block. Since the vertical frame member can be inserted while moving, a slot without a collar plate can be formed in the horizontal frame member, and welding between the panel block and the hull block can be automated.

Furthermore, since the panel block is formed from divided modules, it is possible to automate processes such as module assembly and welding, distortion correction, and assembly and welding of the panel block and the horizontal frame members.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the accompanying drawings.

FIG. 1 shows a double hull block in which the method of the invention is implemented.

In the figure, 11 is a double hull block, and this double hull block 11 has upper and lower panel blocks 3 formed by welding vertical frame members 2 to a skin plate 1.
. The hull block 8 is formed by inserting the transverse frame member 7 and welding the transverse frame member 7 therethrough, and the hull block 8 is turned over and the vertical frame member 2 of the lower panel block 4 is inserted into the lower slot 6 of the transverse frame member 7. It is formed by welding.

The present invention relates to a method of constructing the above-mentioned double hull block 11, and particularly relates to a method for constructing the double hull block 11, and in particular,
As shown in FIG. 2, a plurality of modules 13 (FIG. 3) are formed by welding a plurality of longitudinal rib members 2 to a panel member 12 obtained by dividing the skin plate 1, and the outer periphery of these modules 13 is After processing the grooves, these modules 13 are welded together to form upper and lower panel blocks 3 and 4 as shown in FIG. After forming the hull block 8 by welding as shown in FIG.
The lower panel block 4 is assembled as shown in FIG.

Next, equipment for carrying out the above method will be explained with reference to FIGS. 6 to 12.

FIGS. 7 and 8 show a module assembly facility 14 for assembling the module 13, and this module assembly facility 14 includes a vertical bone storage device 15 for storing the vertical bone members 2, as shown in FIG. a vertical bone transfer device 16 for transporting the stored vertical bone members 2; a vertical bone assembly device 17 for assembling the vertical bone members 2 to the panel member 12;
A vertical bone welding device 18 that is located downstream of the vertical bone assembly device 17 shown in FIG. 8 and welds the vertical bone member 2 to the panel member 12;
The vertical bone welding device 18 includes a distortion correction device 19 that corrects distortion caused by welding.

The vertical bone storage device 15 has a vertical bone holding jig 20 for holding a large number of vertical bone members 2 in predetermined positions,
A vertical bone supply conveyor 21 is provided for sequentially supplying the vertical bone members 2 held by the holding jig 20 to the vertical bone transfer device 16. The vertical bone transfer device 16 includes:
A trolley 24 is provided to extend over a beam 23 of a frame 22 installed near the vertical bone supply conveyor 21 and run freely along the beam 23; It consists of a magnetic lifter 25 that adsorbs and lifts up the vertical frame member 2 supplied by the conveyor 21.
A cylinder 26 is provided for moving the lifted vertical frame member 3 in the longitudinal direction.

As shown in the figure, the vertical frame assembly device 17 includes a cart 27 mounted below the beam 23 so as to be movable with the panel member 12 placed thereon, and a panel mounted on the cart 27. It consists of a longitudinal rib attachment device 28 for positioning and attaching the longitudinal rib member 2 on the member 12.

The bogie 27 is supported so as to be freely movable along a pair of guide rails 30 laid in a bogie running path 29 in a direction perpendicular to the longitudinal direction of the beam 23.
7 is a rack 3 laid parallel to the guide rail 30
1 is meshed with a pinion (not shown) that is rotationally driven to move back and forth along the guide rail 30.

Further, positioning clamps 69 for positioning the panel member 12 to be placed at a predetermined position are provided on the outer periphery of the upper surface of the carriage 27 at appropriate intervals.

The vertical bone position attachment device 28 is attached to a support frame 32 that spans over the truck running path 29.
A plurality of vertical bone attachment devices 28 are provided so as to be movable along this line, and positioning holes 33 are formed in these vertical bone attachment devices 28 to allow the vertical bone members 2 to be inserted therethrough and positioned.

These mounting devices 28 also include a guide roller that grips and guides the vertical frame member 2 inserted through the positioning hole 33 and a welding torch that temporarily welds the positioned vertical frame member 2 to the panel member 12. (None shown)
is built-in.

The assembly equipment 12 has a built-in computer, and automatically controls the operation of the vertical bone transfer device 16, the travel of the trolley 27, the positioning of the vertical bone attachment device 28, etc. based on input data. A control device 34 is provided, and in the vicinity of the control device 34, a welding machine 35 connected to a welding torch in the vertical frame attachment device 28 is provided.

Although FIG. 1 shows an example in which two vertical bone attachment devices 28 are provided, the number thereof is not limited to this.

As shown in FIG. 8, the vertical bone welding device 18 is connected to the bogie running path 29 via a roller conveyor 36, and movably supports the module 13 to which the vertical bone members 2 are temporarily fixed. Welding workbench 37 and a pair of guide rails 38 laid along both sides of this welding workbench 37
A traveling frame 39 is provided to be able to run freely along the guide rail 38, and this traveling frame 3
9 and a welding machine 41 connected to each of a plurality of welding torches 40, the welding workbench 37
A roller conveyor (not shown) for moving the module 13 is provided so as to be retractable.

Further, the distortion correction device 19 is provided on the downstream side of the vertical bone welding device 18 so as to be movable along the guide rail 38. A press 42 is provided.

The operations of the automatic welding device 18 and the distortion correction device 19 are automatically controlled by the control device 34 described above.

FIG. 9 shows a beveling device 43 for machining the peripheral beveling of the module 13 formed by the module assembly equipment 14.

As shown in the figure, this beveling device 43 has the following features:
A magnetic moving table 44 that fixedly supports the module 13 is movably supported on a roller conveyor 45, and guide rails 47 that movably support a cutting machine frame 46 are provided on both sides of the roller conveyor 45.

The cutting machine frame 46 is provided so as to straddle the module 13 fixed on the magnet moving table 44, and is able to run along the guide rail 47.

Two cutting machines 48 are installed on the cutting machine frame 46 so as to be movable and movable up and down so that both end edges of the panel member 12 of the module 13 can be cut simultaneously. The part includes a cutting blade holding part 4.
9 is rotatably supported so that the bevel of the panel member 12 can be cut into an I-shape, and the top and bottom surfaces can be cut into a V-shape or an X-shape.

Further, on the magnetic moving table 44, a positioning clamp 50 for positioning the module 13 placed on the moving table 44 at a predetermined position is reciprocated in a direction perpendicular to the running direction of the magnetic moving table 44. It is set up so that it can move freely.

In the figure, 51 is a control device for automatically controlling the operation of the beveling device 43, and 52 is a computer for inputting operation data to the control device 51.

FIG. 10 shows the upper and lower panel blocks 3 and 4 being formed by welding and joining a plurality of modules 13 that have been grooved by the groove processing device 43 of FIG. Assemble parts 7 and hull block 8
This figure shows the block construction equipment 52 that forms the block.

As shown in the figure, the block construction equipment 52 includes a welding surface plate 5 for welding a plurality of modules 13.
3, and a horizontal frame assembly device 5 that assembles the horizontal frame member 7 by inserting the upper slot 5 of the horizontal frame member 7 into the vertical frame member 2 of the upper panel block 3 formed on the welding surface plate 53.
4, and a welding device 55 for welding the modules 13 together and the assembled horizontal frame member 7 and panel block 3.

The welding surface plate 53 is provided with a roller conveyor 5 for moving the module 13 in the vertical and horizontal directions.
6 and 57 are provided so as to be freely retractable at appropriate intervals, and positioning stoppers are provided on both sides of the upper surface of the welding surface plate 53 to press and fix the modules 13 from both sides in order to position the modules 13 in the width direction. 58 are provided at appropriate intervals, and at both ends of the upper surface of the welding surface plate 53, positioning stoppers 59 for positioning the vertical positions of the modules 13 are provided at appropriate intervals and can be freely retracted. , is provided so as to be freely movable in the vertical direction.

The horizontal frame assembly device 54 has guide rails 60 laid on both sides of the welding surface plate 53 as shown in the figure.
A pair of running frames 61 are provided so as to be freely movable along each of the running frames 61, and the vertical frame members 2 of the panel block 3 on the welding surface plate 53 are attached to the vertical frame members 2 of the panel block 3 on the welding surface plate 53 by gripping the horizontal frame members 4. , insert the gripped horizontal bone member 7 through the slot 5, and insert the horizontal bone member 7 into the panel block 3.
and a transverse bone positioning device 62 for positioning at a predetermined position.

The transverse bone positioning device 62 is provided with a gripping device (not shown) for grasping the transverse bone member 7.

Furthermore, a welding device 55 is provided on the guide rail 60.

The welding device 55 is provided with a traveling frame 63 which is spanned between guide rails 60 and is movable along the guide rails 60, and this traveling frame 63 has a plurality of robots movable along it. A welding torch 64 is provided.

A control device 65 for controlling the operation of the transverse frame assembly device 54 and the welding device 55 is provided near the welding surface plate 53;
A monitor 66 is provided to monitor the operation.

Note that 67 is a welding machine connected to the welding device 55.

FIGS. 6, 11, and 12 show a procedure for constructing a double hull block 11 by assembling the lower panel block 4 to the hull block 8 after inverting the hull block 8 constructed by the block construction equipment 52. It shows double hull block construction equipment 67.

The double hull block construction equipment 67 is shown in FIG.
, 11 and 12, a positioning device 68 for positioning the inverted hull block 8 at the reference position, and a positioning device 68 for positioning the vertical frame member 2 of the panel block 4 in the slot 5 of the horizontal frame member 7 of the hull block 8. As shown in FIGS. 11 and 12, it consists of a draw chain 71 for moving the panel block 4 in the vertical (back and forth) direction, and a vertical bone positioning device 70 for moving the assembled double hull block 11 in the vertical direction. A plurality of roller conveyors 72 for movement are provided near the draw chain 71 and roller conveyor 72 to support the panel block 4 at an appropriate height and to move the panel block 4 in the vertical direction.
A large number of ball conveyors 73 are rotatably provided for smooth movement in the lateral (left and right) directions.

The roller conveyor 72 is provided so as to be able to come into and out of contact with the lower surface of the panel block 4, so that when the panel block 4 moves laterally, it sinks downward and does not interfere with its movement. Moreover, when the assembled duffle hull block 11 is moved in the vertical direction, it is projected and rotated to be moved.

Further, as shown in FIG. 12, on the traveling path of the panel block 4, there are provided for holding the panel block 4 from both sides to position it in the horizontal direction, and for guiding the movement of the panel block 4 in the vertical direction. A plurality of guide rollers 74 are provided, and these guide rollers 74 are rotatably supported by a roller frame 76 that is provided to be movable laterally along guide rails 75 laid on both sides of the traveling path of the panel block 4. has been done.

As shown in FIGS. 6 and 11, a plurality of the positioning devices 68 are installed on both sides of the traveling path of the panel block 4, and the positioning device 68 on one side is
The hull block 8 is supported and fixed at a reference position in the lateral direction, and the positioning device 68 on the other side is fixed to the hull block 8.
It is provided so as to be movable in the lateral direction along a guide rail 77 in order to press and support it.

As shown in the figure, the vertical bone positioning device 70 is arranged such that its main body frame 78 is located behind the hull block 8 fixedly supported by the positioning device 68 and straddles the travel path of the panel block 4. The main body frame 78 is provided with a plurality of vertical bone guide portions 79 for inserting and positioning the vertical bone members 2 of the panel block 4 and for guiding the vertical movement of the vertical bone members 2. .

The main body frame 78 also includes a vertical bone guide portion 7.
A guide rail 80 for movably supporting the main body frame 78 is provided, and a drive device 81 for finely adjusting the position of the main body frame 78 is provided.

As shown in FIG. 6, the double hull block construction equipment 67 is provided with a control device 82 for operating the positioning device 68, the vertical bone positioning device 70, and the roller frame 76.

Next, an embodiment of the present invention will be described based on the equipment shown in FIGS. 6 to 12.

First, in FIG. 7, the vertical bone member 2 is transported from a manufacturing location (not shown) by a transport device 83 and stored in the vertical bone storage device 15.

On the other hand, the panel member 12 is processed into the required dimensions using an NC processing device (not shown), and after the reference positions in the vertical and horizontal directions are set, the panel member 12 is placed at a predetermined position on the cart 27. At the same time, the front end of the panel member 12 is positioned so as to be in contact with the vertical bone attachment device 27.

At this time, the vertical bone attachment device 28 is automatically controlled by the control device 34 so that the positioning hole 33 is positioned at a predetermined position.

Next, the stored vertical bone member 2 is lifted up by the vertical bone transfer device 16, and the front end of the vertical bone member 2 is inserted into the positioning hole 33 and placed on the panel member 12. .

As the carriage 27 moves forward, the vertical frame member 2 inserted into the positioning hole 33 is positioned on the panel member 12 by the positioning hole 33, and is temporarily fixed using a built-in welding torch (not shown). In this way, the vertical frame members 2 are sequentially assembled on the panel member 12 to form a temporarily fixed module 13.

The module 13 in this state is transferred via the roller conveyor 36 onto the welding workbench 37 of the vertical bone welding device 18 shown in FIG. After the welding is completed, the distortion caused by welding is corrected by the distortion correction device 19, and the module 13 is formed.

Next, the module 13 whose distortion has been corrected is transferred to a beveling device 43 shown in FIG. Based on the data input to the standard, the periphery is cut to a predetermined size and to an appropriate groove condition. The operation of the bevel processing device 43 at this time is automatically performed by the control device 51.

After producing a plurality of modules 13 in this manner, the panel members 12 of the modules 13 are joined together on a welding surface plate (not shown) to form upper and lower panel blocks 3 and 4.

Next, when assembling the horizontal bone member 7 to the upper panel block 3, as shown in FIG. 2 (indicated by the two-dot chain line in FIG. 10) through the slot 5 of the transverse bone member 7, and then sequentially moved to assemble the transverse bone member 7 at a predetermined position. This operation is repeated to sequentially assemble a plurality of horizontal frame members 7 onto the panel block 3.

The transverse frame member 7 assembled on the panel block 3 is welded to the panel block 3 by a welding device 55 to form a hull block 8.

At this time, the transverse bone assembly device 54 and the welding device 5
5 is automatically controlled by a control device 65.

Next, when assembling the lower panel block 4 to the hull block 8, after inverting the hull block 8, move the inverted hull block 8 to the double hull block equipment 67, and use the positioning device 68 to move the inverted hull block 8 to the double hull block equipment 67. Fixed and supported at the reference position.

On the other hand, the lower panel block 4 is moved by the draw chain 71 to the end of the positioned hull block 8, and the tip of the vertical bone member 2 is moved to the vertical bone guide section 79 of the vertical bone positioning device 70. The vertical bone member 2 is positioned at the reference position.

When the panel block 4 is further moved, the vertical frame members 2 of the panel block 4 are inserted into the slots 6 of the horizontal frame members 7 of the hull block 8, as shown in FIG. Can be assembled in one piece.

After this, the double hull block 11 is constructed by welding with an automatic welding machine or a welding robot (not shown).

As explained above, a plurality of modules 1
3, and after joining these modules 13 to form upper and lower panel blocks 3 and 4, the horizontal frame member 7 is assembled to the upper panel block 3 to form a hull block 8, so that block 8 is constructed. module 1
3, the welding and distortion correction process, the beveling process, the process of sequentially transferring the module 13 to these processes, and the process of assembling and welding the horizontal frame member 7 to the panel block 3. This can be done automatically via .

Furthermore, since the grooves around the module 13 are machined, the upper and lower panel blocks 3 and 4 can be formed with good precision, and the horizontal frame members are assembled to the upper panel block 3. Therefore, the precision of the hull block 8 is improved, and since the double hull block 11 is assembled by moving the lower panel block 4 horizontally using the double hull block equipment 67, the assembly work can be done mechanically, improving work efficiency. It can be dramatically improved.

[0071] Also, as a result, the slot 5 of the transverse bone member 7
, 6, as shown in FIG. 2, it is sufficient to form slits 5a, 6a in the web penetrating portion of the vertical frame member 2, so there is no need to attach collar plates etc. to these slots 5, 6, and the welded portion Welding can also be performed automatically using a welding device 55 or the like.

[0072]

In summary, according to the present invention, after forming upper and lower panel blocks with a plurality of modules, welding a horizontal frame member to the upper panel block to form a hull block, and then attaching the lower panel block to the upper panel block. Since the panel blocks are assembled, various processes in block construction can be automated, and welding during block construction can be automated. In addition, since the outer periphery of the module is beveled before being formed into a panel block, the double hull block can be assembled mechanically.
It exhibits excellent effects such as dramatically improving work efficiency.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a double hull block for explaining the method of the present invention.

FIG. 2 is a cross-sectional view of the double hull block.

FIG. 3 is a perspective view showing the module.

FIG. 4 is a perspective view showing a panel block.

FIG. 5 is a perspective view showing the hull block.

FIG. 6 is a perspective view showing the entire double hull block construction equipment.

FIG. 7 is a perspective view showing vertical frame assembly equipment for assembling modules.

FIG. 8 is a perspective view showing a vertical bone welding device.

FIG. 9 is a perspective view showing a beveling device for machining a peripheral beveling of a module.

FIG. 10 is a perspective view showing block construction equipment for constructing hull blocks.

FIG. 11 is a perspective view showing a positioning device for double hull block construction equipment.

FIG. 12 is a perspective view showing a vertical bone positioning device for double hull block construction equipment.

FIG. 13 is a perspective view showing a conventional example.

FIG. 14 is a cross-sectional view of a conventional double hull block.

[Explanation of symbols]

1. Skin plate 2 Vertical bone members 3,4 Panel block 5,6 slots 7 Transverse bone members 8 Hull block 11 Double hull block 12 Panel members 13 Module 14 Module assembly equipment 17 Vertical bone assembly device 43 Bevel processing equipment 52 Block construction equipment 54 Transverse bone assembly device 67 Double hull block construction equipment

Claims (1)

[Claims] Claim 1: Consisting of two panel blocks formed by welding vertical rib members to a skin plate, and a horizontal rib member having slots formed on the top and bottom, the vertical rib members of one of the panel blocks are attached to the horizontal rib members. A double hull in which a hull block is formed by inserting it through a slot and welding its horizontal rib members, and then inverting the hull block and inserting the vertical rib member of the other panel block into the other slot of the horizontal rib member and welding. In the block construction method, the above-mentioned panel block is formed from a plurality of modules obtained by dividing the skin plate, and after the outer periphery of these modules is beveled, these modules are welded and joined to form the upper and lower panel blocks. Thereafter, a horizontal frame member is welded to the upper panel block to form a hull block, and then a lower panel block is assembled to the hull block.