JPH0911160A - Marking method of outfit fitting position to hull member - Google Patents

Abstract

PURPOSE: To dispense with a marking operation by hand so as to reduce labor of an operator and shorten an operating time, and improve accuracy of the marking operation. CONSTITUTION: A working head 12 of a NC cutter 10 which automatically cuts out a hull member from a steel plate 11 based on CAD data of the mono- part drawing of a hull member 5 is provided with a marker 13, and when the CAD data of the mono-part drawing of the hull member 5 is prepared, information of fitting positions of outfits to the hull member 5 and part marks are added to preparation of the data. Operation of the NC cutter 10 is controlled based on the CAD data obtained in this way, and the outfit fitting positions against the hull member 5 to be cut out from the steel plate 11 are marked as marking lines 9 together with part marks 9'.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for marking a mounting position of a fitting on a hull member.

[0002]

2. Description of the Related Art FIG. 6 is an enlarged view of a part of a cross section of a container ship, in which 1 is an upper deck, 2 is an outer plate, and 3 is a shell.
Indicates a vertical wall that defines a hold 4, and various hull members 5 are assembled between the outer plate 2 and the vertical wall 3 to form a hull structure.

The hull member 5 has a front-back direction (see FIG. 6).
Since various fittings 8 for supporting the pipe 6, the electric path 7, etc. extending in the direction perpendicular to the paper) are attached to the hull member 5, before the fitting work of these fittings 8 is performed, Mark the marking line 9 as a guide for the mounting position on the hull member 5
Must be marked against.

[0004] Conventionally, in this type of marking work, after the hull members 5 cut out from a steel plate are assembled in predetermined blocks, an operator attaches each fitting 8 from the fitting installation drawing.
The mounting position of was read and understood, and the dimensions shown in the drawings were measured with a measure and the measurement was performed with a black ink jar or a stone brush.

[0005]

However, such a manual marking operation requires a great deal of labor and time, and a skilled worker may cause a measurement error and lower the accuracy.

The present invention has been made in view of the above circumstances, and it is possible to reduce the labor of the operator by not requiring the manual marking work, shorten the working time, and improve the accuracy of the marking work. Has an aim.

[0007]

SUMMARY OF THE INVENTION The present invention uses an NC cutting machine for cutting a hull member from a steel plate based on CAD data of a one-piece drawing of a hull member, and processing the NC cutting machine prior to cutting work. A method of marking a fitting attachment position on a hull member with a marker provided on a head,
When creating the CAD data of the one-part drawing of the hull member, the data is created by adding the information of the attachment position of the fitting to the hull member and the part code, and the CAD obtained by this
By performing the operation control of the NC cutting machine based on the data, the fitting position of the fitting to the hull member to be cut out from the steel plate is marked at the appropriate position of the steel plate together with the part code.

[0008]

Therefore, according to the present invention, prior to the cutting of the hull member from the steel plate by the NC cutting machine, a marker provided on the machining head of the NC cutting machine can be used to set the attachment position of the fitting to the hull member to be cut from the steel plate. Since the marking is automatically performed together with the part code, the manual marking work after the hull member assembly is eliminated, and the accuracy of the marking work is improved.

[0009]

Embodiments of the present invention will be described below with reference to the drawings.

1 to 5 show an embodiment of the present invention, in which the same reference numerals as those in FIG. 6 represent the same parts.

As shown in FIG. 1, various hull members 5 constituting the hull structure of a ship are manufactured by cutting out from a steel plate 11 of a fixed length by an NC cutting machine 10, but in the present embodiment, A marker 13 is provided on the machining head 12 of the NC cutting machine 10 of this kind, and the operation control of the NC cutting machine 10 is performed to mark the fitting position of the fitting on the hull member 5 with the marker 13 of the machining head 12. The outline is to perform the cutting work prior to the cutting work.

That is, in the NC cutting machine 10 illustrated in FIG. 1, the guide rail 16 is mounted on the gate type traveling carriage 15 which moves along the guide rail 14 across the steel plates 11 from which the plurality of hull members 5 are to be cut out. A machining head 12 equipped with a traversing body 17 that moves along and equipped with a cutter nozzle 18 that injects gas, plasma, laser, or the like toward the steel plate 11,
The traverse body 17 is mounted so as to be able to move up and down along a guide rail 19 provided on the traverse body 17, so that the machining head 12 can be freely operated in three axial directions (X direction, Y direction, Z direction). Therefore, if the processing head 12 is provided with a marker 13 for spraying powder coating or the like onto the steel plate 11, marking can be performed by the same operation as when cutting out various shapes of the hull member 5 from the steel plate 11. It becomes possible to do.

FIG. 2 shows a flow chart of the marking method according to this embodiment. When a normal cutting operation is performed using the NC cutting machine 10 as described above, the hull member 5
CAD (Computer aided d)
(design: computer-aided design) It is necessary to create data, but in this embodiment, the data is created by adding information on the attachment position of the outfitting equipment 8 to the hull member 5 and the part code at this stage. (See step 20 in FIG. 2).

Here, in order to create the CAD data, a conventionally well-known computer equipment 21 as shown in FIG. 3 is used, and this kind of computer equipment 21 includes a central processing unit (CPU) and a memory (storage) not shown. And a processing device 22 including a device, etc. as a main configuration.
In 2, the execution program of the graphic processor, various data, etc. are read from the hard disk drive into the memory, and various arithmetic processing based on the programs and data read into the memory is executed by the central arithmetic processing unit.

Further, a monitor (display device) 23, a keyboard 24, a mouse 25 (input device), etc. are connected to the processing device 22, respectively, and the processing contents performed by the processing device 22 are displayed on the monitor 23 as a visual image. Displayed in
Further, an instruction requested by the user is given to the processing device 22 from the keyboard 24 and the mouse 25.

Then, for example, the information such as the shape and dimensions of the various hull members 5 is read out one by one from the design drawing of the hull structure and the like, and the information is input to the processing device 22 using the keyboard 24 and the mouse 25. At the same time, the information on the mounting position of the fitting 8 with respect to the hull member 5 and the part code is read from the design drawing of the fitting 8 and the like, and similarly input, and the marking line is displayed as displayed on the screen of the monitor 23 in FIG. CA of the one-part drawing of the hull member 5 in which 9 and the part code 9'are added.
Create D data.

However, when the hull members and fittings are designed by CAD processing from the beginning of design, necessary information (structural information of hull members, structural information of hull members,
It is also possible to extract (equipment attachment position and part code information) and use it for creating CAD data of the one-part drawing of the hull member 5.

Next, when the CAD data of the one-part drawing is prepared for the plurality of hull members 5, as shown in FIG. 4, the hull members 5 of various shapes are cut out from the single fixed-length steel plate 11. The layout is examined, and the nesting work for determining the layout with the highest yield is performed (see step 26 in FIG. 2).

In this nesting work, one drawing of a plurality of hull members 5 is selected and called on the screen of the monitor 23 of the computer equipment 21, and the keyboard 24 and the mouse 2 are selected.
Monitor 23 for combination and arrangement of hull members 5
It may be performed by changing the layout on the screen, but it is also possible to process by a program that automatically determines the layout with the highest yield.

Next, an efficient cut path (cutting route) according to the layout of the hull member 5 is defined (FIG. 2).
See step 27 therein).

The definition of the cut path can be programmed by the processing device 22 of the computer equipment 21.

After the steps 20, 26 and 27 (see FIG. 2) by the computer equipment 21 are completed as described above, various information based on the CAD data of the one-part drawing of the hull member 5 is sent to a command tape, a floppy disk or the like. The information processing circuit of the control device 28 of the NC cutting machine 10 (see FIG. 5) converts this into a series of command signals to control the operation of the NC cutting machine 10 and precede the cutting work. The marking line 9 and the part code 9'of the fitting attachment position are automatically marked by the marker 13 provided on the machining head 12 of the NC cutting machine 10 (see step 29 in FIG. 2), and the NC cutting is performed when the marking work is completed. Normal automatic cutting by the machine 10 is performed (see step 30 in FIG. 2).

Therefore, according to the above-mentioned embodiment, since the marking work by hand is unnecessary, the labor of the operator can be remarkably reduced and the working time can be remarkably shortened.

Further, the attachment position of the outfitting 8 (see FIG. 6) to the hull member 5 can be mechanically marked without depending on the measurement technique of a skilled worker.
The accuracy of marking work can be greatly improved.

Further, since the mounting position of the outfitting equipment to the hull member 5 is marked together with the part code 9 ', the efficiency of the mounting work of the outfitting equipment 8 (see FIG. 6) can be greatly improved.

It should be noted that the marking method of the mounting position of the fittings to the hull member of the present invention is not limited to the above-mentioned embodiment, but can be applied to the hull member of ships other than container ships, and others. Needless to say, various changes can be made without departing from the scope of the present invention.

[0027]

According to the above-described marking method of the fitting attachment position for the hull member of the present invention, various excellent effects as described below can be obtained.

(I) Since the marking work by hand is not necessary, the labor of the operator can be remarkably reduced and the working time can be remarkably shortened.

(II) Since the attachment position of the outfitting component to the hull member can be mechanically marked without depending on the measurement technique of a skilled worker, the accuracy of the marking work can be greatly improved. .

(III) Since the mounting position of the fittings to the hull member is marked together with the part code,
It is possible to greatly improve the efficiency of the work of installing the outfitting parts.

[Brief description of the drawings]

FIG. 1 is a schematic view showing an example of an NC cutting machine used in an embodiment of the present invention.

FIG. 2 is a flowchart showing an embodiment of the present invention.

FIG. 3 is a schematic diagram schematically showing computer equipment used for creating CAD data in one embodiment of the present invention.

FIG. 4 is an explanatory diagram of a nesting operation according to an embodiment of the present invention.

FIG. 5 is an explanatory diagram showing a relationship between computer equipment and an NC cutting machine according to an embodiment of the present invention.

FIG. 6 is a cross-sectional view showing an example of a hull structure.

[Explanation of symbols]

 5 Hull member 8 Outfitting equipment 9 Marking line (mounting equipment attachment position) 9'Part code 10 NC cutting machine 11 Steel plate 12 Processing head 13 Marker

Claims (1)

[Claims] 1. An NC cutting machine for cutting a hull member from a steel plate based on CAD data of a one-piece drawing of the hull member,
This is a method of marking the attachment position of the fitting to the hull member with a marker provided on the machining head of the NC cutting machine prior to the cutting work, and when the CAD data of the one-part drawing of the hull member is created, The data is created by adding the information of the attachment position of the fitting to the shell member and the part code, and based on the CAD data obtained by this, the NC
By controlling the operation of the cutting machine, the fitting position for the hull member to be cut from the steel plate is marked at an appropriate position on the steel plate together with the part code. Method.