JP3372855B2 - Computer-readable medium storing component placement device, component placement method, and component placement program - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for determining a cutting position for efficiently cutting a plurality of parts from one long material. More specifically, the present invention relates to a component arranging device capable of arranging a component die showing a planar shape of a component on a material die showing a planar shape of a material so as to present such a cutting position.

[0002]

2. Description of the Related Art Conventionally, the most economical and efficient method of determining a cutting position is to cut out as many parts in various plane shapes as possible from a long material such as steel, plate, paper and cloth. , Variously proposed. For example, Japanese Patent Fair 7-
No. 43735 discloses a method of digitizing the shape of a mold piece, performing image processing on a computer, and automatically determining an optimum cutting position.

[0003]

However, according to the method disclosed in Japanese Patent Publication No. 7-43735, the shape of the mold piece is quantified by using a scanner, and therefore, it can be obtained by quantifying the shape. The information obtained is image data such as bitmap data. Therefore, the total amount of data to be processed showing the shape of one mold piece becomes enormous, and thus a large number of processing steps and processing time are required to complete the processing. Moreover, according to the method disclosed in Japanese Patent Publication No. 7-43735, the processing step for determining the position of the mold piece is to determine the optimum position while moving the image of the mold piece on the screen. Is. Therefore, since the movement-judgment loop process must be repeatedly executed to repeat trial and error,
The number of processing steps and the processing time required to complete the processing become even larger.

The present invention has been made in view of the above problems, and suppresses the total amount of data to be processed when determining a cutting position for efficiently cutting a plurality of parts from one long material. It is an object of the present invention to provide a component placement device capable of reducing the number of processing steps and shortening the processing time by devising the processing steps.

[0005]

The present invention has the following features to attain the object mentioned above. That is, claim 1
The invention described is a component arrangement for arranging a component mold showing a planar shape of each component on a material mold showing a planar shape of the material in order to determine cutting positions of a plurality of components from one long material. In the device, a part type data holding means for holding part type data defining the part type as a set of local coordinate values indicating relative positions of respective nodes in the planar shape of the part, and a part type data holding means parallel to the longitudinal direction of the material type. Material type data holding means for holding material type data defining the material type in an orthogonal coordinate system composed of a first axis and a second axis orthogonal to the first axis, and one on the material type corresponding to the material type data. Arranging means for arranging a part mold corresponding to the part mold data and fixing its position, and a part axis corresponding to another part mold data on the material mold for the position-fixed part mold. Along Temporary placement means for tentatively arranging side by side, and parts having the same coordinate value in the second axis direction among the nodes on the opposite sides of the component mold of which the position has been determined and the component mold tentatively arranged side by side Deviation amount calculating means for calculating the deviation amount, specifying means for specifying the smallest deviation amount among the deviation amounts between the nodes calculated by the deviation amount calculating means as the minimum deviation amount, and the same distance as the minimum deviation amount. And moving means for moving the temporarily arranged component mold along the first axis in a direction approaching the position-determined component mold, and fixing means for fixing the position of the component mold moved by the moving means. , Is provided.

With this structure, the part type data defines the part type as a set of coordinate values indicating the positions of the nodes (bending points) of the polygonal lines corresponding to the outer edge of the plane shape. As described above, according to the present invention, the total amount of data to be processed can be small. Further, when the component mold is first arranged on the material mold, the arrangement means arranges the component mold,
Immediately determine the placement position. Next, when arranging the second component mold on the material mold, the temporary component tentatively arranges the second component mold so that the second component mold is lined up with the component mold whose arrangement position is fixed by the arranging device. . After the temporary placement, the shift amount calculating means calculates the shift amount between the nodes forming the two component types and having the same coordinate value in the second axis direction. Then, the specifying unit specifies the smallest one of the calculated shift amounts as the minimum shift amount, and the moving unit moves the second component in the direction of approaching the component mold with the same distance as the specified minimum shift amount and the position being determined. Move the mold. Similarly, when arranging the third and subsequent component dies on the material dies, the tentative placement means tentatively lays out the placement-target component dies so that they are aligned with the position-determined component dies, and thereafter The identifying means identifies the smallest displacement amount between the nodes, and approaches the component mold with the same distance as the identified minimum displacement amount and the position being determined.
The moving means moves the placement target component mold in the direction. As described above, according to the present invention, it is possible to immediately move the component mold without performing trial and error by repeating the movement and check. Therefore, according to the present invention, it is possible to reduce the number of processing steps and the processing time when determining the cutting position for efficiently cutting a plurality of parts from one long material.

According to a second aspect of the present invention, the temporary placement means of the first aspect sequentially inverts the other component die placed on the material die in the direction of the first axis and / or the second axis. The displacement calculating means calculates the amount of displacement between the nodes every time the temporary placement means inverts the same component type, and the specifying means each time the temporary placement means inverts the same component type. The smallest displacement amount between the nodes calculated by the displacement calculating unit is specified as the minimum displacement amount, and the moving unit is the largest among the minimum displacement amounts specified by the specifying unit for the same component type. and has a selection means for selecting, said component type selected minimum shift amount and the same distance and by said selecting means minimum shift amount selected by the selecting means are in a state when it is specified by the specifying means By moving in the direction <br/> approaching the location Committed-part, those identified.

According to a third aspect of the present invention, in the displacement amount calculating means of the first or second aspect, a node having a certain coordinate value in the second axis direction is provisionally arranged side by side with the position-determined part mold. In the case where only one of the two component types is present, the node having the coordinate value in the second axis direction is set on the other component type, and then the misalignment amount between the respective node points is calculated. It was done.

According to a fourth aspect of the present invention, in the first aspect, when the material and the part are made of an angle material, the part type data defines a part type indicating a planar shape in a state where the part is expanded. Then, the material type data defines a material type indicating a planar shape in a state where the material is developed, and the material type in a state where the arranging means and the temporary arranging means match the ridge lines of the part and the material. It is specified by arranging the component type above.

According to a fifth aspect of the present invention, in the third aspect, when the material and the part are made of an angle material, the part type data defines a part type indicating a planar shape in a state where the part is expanded. Then, the material type data defines a material type indicating a planar shape in a state in which the material is developed, and the placement means matches the ridge lines in the component and the material, and the component type on the material type. And the temporary placement means arranges the part mold on the material mold in a state where the ridgelines of the part and the material are matched, and changes the state of the part mold until moved by the moving means. It is specified by maintaining it as it is without inverting it.

According to a sixth aspect of the present invention, the material type data generating means for generating the material type data based on the information for specifying the kind of the material is specified in the first aspect. .

According to a seventh aspect of the present invention, in the first aspect, the component type data generating means for generating the component type data based on the information for specifying the shape of the component is further specified. .

According to an eighth aspect of the present invention, in order to determine the cutting positions of a plurality of plate-like parts from one long material, a part type indicating the plan shape of each of the parts indicates the plan shape of the material. In the component arranging method of arranging on the material mold, the component mold is defined as a set of local coordinate values indicating relative positions of respective nodes in the planar shape of the component, and a first axis parallel to the longitudinal direction of the material mold is defined. The material mold is defined in an orthogonal coordinate system consisting of a second axis orthogonal to this, one component mold is arranged on the material mold, and its position is determined,
Another component die is arranged on the material die in parallel along the first axis with respect to a component die whose position is already determined, and the relative position of the position-determined component die and the component die temporarily arranged in line with this Of the nodes on the opposite side, the deviation amount between the nodes having the same coordinate values in the second axis direction is calculated, and the smallest calculated deviation amount is specified as the minimum deviation amount. Part type with the same distance and position
It is specified by moving the provisionally arranged component die in the direction of approaching the position along the first axis and determining the position of the component die after the movement.

According to a ninth aspect of the present invention, in the eighth aspect, the other component type disposed on the material type is sequentially inverted in the direction of the first axis and / or the second axis, and the other type is obtained. Each time the part type is reversed, the amount of deviation between the nodes is calculated, and the smallest deviation amount calculated is specified as the minimum deviation amount, and the minimum deviation amount specified for the same part type is calculated. The largest one is selected, and the part mold in the state when the selected minimum deviation amount is specified is the same distance as this minimum deviation amount and the position is determined.
It is specified by moving it toward the model .

According to a tenth aspect of the present invention, a component type is defined as a set of local coordinate values indicating relative positions of nodes indicating a planar shape of the component, and the computer is parallel to the longitudinal direction of the long material. In a Cartesian coordinate system consisting of a first axis and a second axis orthogonal to the first axis, the planar shape of the material is defined as a material mold, one component mold is arranged on the material mold, and its position is determined. Another component die is arranged side by side along the first axis with respect to the component die whose position is already determined on the material die, and the relative position of the component die whose position is already determined and the component die temporarily arranged side by side with this Of the nodes on the opposite side, the amount of deviation between the nodes having the same coordinate values in the second axis direction is calculated, and the smallest of the calculated amounts of deviation between the nodes is specified as the minimum amount of deviation. , Same as this minimum deviation Closer to the release and the position Committed component type
It is a computer-readable medium that stores a program for moving the temporarily arranged component mold in the vertical direction along the first axis and determining the position of the component mold after the movement.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

[0017]

[First Embodiment] A first embodiment of the present invention described below shows an example in which the component placement apparatus according to the present invention is incorporated into a ship manufacturing system. (Schematic Configuration of Ship Manufacturing System) FIG. 1 is a block diagram schematically showing a part of the ship manufacturing system. As shown in FIG. 1, this ship manufacturing system includes a LAN (Local Area Network) 8 such as Ethernet.
A steel material ordering system 4, a steel material database 5, a parts generation system 6, a parts database 7, a nesting system 1, a nesting result database 2, and a network printer 3, which are communicatively connected to each other via
I have it.

The steel material database 5 is a database for managing inventory information of steel materials that are long materials (steel materials that have been purchased and are unused, and residual steel materials that have been partially cut and used). In the steel material database 5, each steel material is represented by steel material data indicating a model number and a size.

The steel material ordering system 4 is a computer system that constantly monitors the steel material inventory information managed by the steel material database 5 to make a steel material purchase plan, and orders the necessary steel materials to update the steel material database 5. is there.

The part generation system 6 is a computer system which works in conjunction with a ship design system (not shown) to design individual parts used in ship manufacturing and to write the generated part design data in the part database 7. . It should be noted that this part design data is composed of information that specifies the material, three-dimensional shape, etc. of the part.
The three-dimensional shape of the component indicated by the component design data is a flat component f having a flat plate shape as shown in FIG. 11A, an angle component a having an L-shaped cross section as shown in FIG. It is roughly classified into a built-up part (not shown) formed by welding flat members for each. In addition, the component generation system 6 generates the component design data of each flat component in the state where the built-up component is separated for each flat component that constitutes this built-up component, and the component design data is used as the component design data. Write to database 7.

The parts database 7 is a relational database that holds a large number of design data of parts written by the parts generation system 5. The nesting system 1 is a computer system that is the core of the plate-shaped component placement device. Specifically, the nesting system 1 uses all the component design data stored in the component database 6 for the material, the type of three-dimensional shape, the thickness, the width,
Classify by etc. Furthermore, nesting system 1
Defines for each classified component design data group the planar shape of the component indicated by the individual component design data that compose the component design data group in local coordinates (component type data), and A steel material suitable for cutting out the part indicated by the data is specified based on the steel material inventory information in the steel material database 5, and its planar shape is defined by local coordinates (steel material type data, that is, material type data). Then, the nesting system 1 arranges the component mold based on each component mold data on the steel material mold based on the steel material mold data in a state where the remaining length of the steel material is the longest. The nesting system 1 writes the steel material type data incorporating the component type data in this way in the nesting result database 2.

The nesting result database 2 is a relational database that holds the steel material type data (where the component type data has been placed) written by the nesting system 1.

The network printer 3 prints the steel material mold in which the component mold is arranged based on the steel material mold data stored in the nesting result database 2. (Nesting System) Next, a more detailed configuration of the nesting system 1 described above will be described. FIG. 2 is a block diagram showing the circuit configuration of the nesting system 1. As shown in FIG. 2, a nesting system 1
Is composed of a LAN interface 10, a CPU 11, a RAM 12, a disk driver 13, a keyboard 14, a mouse 15, a bus controller 16 and a VRAM 17, which are connected to each other by a bus B, and a display 18 connected to the VRAM 17. .

Of these, the bus controller 16 is
This is a device for managing the state of the bus B. The LAN interface 10 distributes data (requests for data transmission to the steel material database 5 and parts database 7 and data writing request to the nesting result database 2) sent from the CPU 11 to other systems in the LAN 8 within the LAN 8. It is edited and divided into a packet format suitable for, and sent to each of these systems.
It is a device that edits / combines packet format data received from another system via the CPU 11 into a format that can be processed by the CPU 11 and then notifies the CPU 11 of the data.

The keyboard 14 is a device operated by an operator to input various commands to the CPU 11. The mouse 15 is moved by an operator to input movement information for moving the cursor displayed on the display 18, and the information (command sentence, button, icon) displayed at the cursor position on the screen of the display 18 is also moved. Etc.) is a pointing device provided with a click button for inputting a command corresponding to ().

The display 18 is a display device for displaying various information instructed by the CPU 11. V
The RAM 17 is an image memory in which information to be displayed by the display 18 is written.

The disk driver 13 is a device for accessing a floppy disk FD, which is a computer-readable medium, and reading a nesting program stored in the floppy disk FD, based on an instruction from the CPU 11.

The RAM 12 is a main memory in which the work area of the CPU 11 is expanded, and the nesting program read from the floppy disk FD is stored in the CPU 11.
Paging in preparation for processing by. In addition, this RA
In M12, the CPU 11 executes the nesting program, so that the component type data holding unit 121, the material type data holding unit 122, and the screen data holding unit 123.
Are formed.

The CPU 11, which is a computer, is a central processing unit that controls the entire nesting system 1, and executes the nesting program read from the proppy disk FD to thereby read the steel material data and the parts database 7 from the steel material database 5.
Based on the component design data read from, the cut-out position of the component that can most effectively use the steel material is determined. The CPU 11 that has read this nesting program 1
2, the display processing unit 111, the component type data generation unit 112, the steel material type data generation unit 113, the temporary placement unit 114, the deviation amount calculation unit 115, the movement processing unit 116, the confirmation processing unit 117, and The function of the storage processing unit 118 occurs.

The component type data generator 112 has a RAM 12
A part type data holding unit 121 as a "part type data holding means" is formed therein, and part type data is generated based on the part design data read from the part database 7 and stored in the part type data holding unit 121. To do. The component type data is planar type data including coordinate values of nodes (bending points) of a polygonal line (component type) that represents the planar shape of the component in the local coordinate system. A concrete example is shown in FIG.
The part type data representing the planar shape of 2 (a) is “[x1, y
1]-[x2, y2]-[x3, y3]-[x4, y4]-[x5, y5]-
[X1, y1] ”. The part type representing the planar shape of FIG. 12B is“ [x1, y1] − [x2, y2] − [x3, y
3]-[x4, y4]-[x5, y5]-[x6, y6]-[x7, y7]-
[X8, y8]-[x1, y1] ”is defined as shown in FIG.
The component type data representing the angle component as shown in (a) indicates the planar shape when the component is developed in a planar shape as shown in (b) of the figure ([x1, y1]-[x
2, y2]-[x3, y3]-[x4, y4]-[x5, y5]-[x6, y6]
-[X7, y7]-[x1, y1], [x3, y3]-[x6, y6]). Also, these part type data include
Information indicating the thickness and material of the component is added.

The steel material type data generation unit 113 has a RAM 12
A steel material type data holding unit 122 as "material type data holding means" is formed therein, and steel material type data is generated based on the steel material data read from the steel material database 5 and stored in the steel material type data holding unit 122. . In this steel material type data, the planar shape of the steel material is defined by a local coordinate system (x axis [first axis] along the longitudinal direction of the steel material and y along the width direction).
It is plane shape data composed of coordinate values of each node (four points in the case of a rectangular material) of a polygonal line (steel material type, that is, material type) expressed in an orthogonal coordinate system composed of an axis [second axis]. In addition,
The plane type data of the angle material is defined as showing the plane shape when the steel material is developed into a plane shape. Further, information indicating the thickness of the steel material is added to these steel material type data.

The display processing section 111 forms a screen data holding section 123 in the RAM 12 and distinguishes it depending on the type of steel material (material of steel material, cross-sectional shape of flat bar or angle material, combination of thickness and width). Screen data for displaying the component placement work screen S shown in FIG. 3 is stored in the screen data holding unit 123.
Then, any one of the screen data stored in the screen data holding unit 123 is selected, and the component placement work screen S based on the selected screen data is displayed on the display 18
Display on top.

Parts placement work screen S based on each screen data
As shown in FIG. 3, the upper and lower dialog boxes D1 and D2 and a "material type selection button" B are provided. Of these, the upper steel material dialog box D1 is an area for displaying all of the steel material types represented by the steel material type data in the steel material type data holding unit 122, corresponding to the screen data. In the steel material dialog box D1, each steel material type is displayed at the same scale. Further, the steel material dialog box D1 scrolls up / down / left / right by operating the mouse 15 (moving the cursor and pressing the click button), so that any number of steel material molds of any length can be displayed.

The lower part dialog box D2
Is a steel material dialog box D1 among the component types represented by the component type data in the component type data holding unit 121.
This is an area for displaying all those corresponding to the steel material type in which the steel material type is displayed (that is, part types corresponding to parts having the same material, the same cross-sectional shape, and the same width as the steel material). In the parts dialog box D2, each part type is displayed at the same scale as the steel material type displayed in the steel material dialog box D1. Further, since the parts dialog box D2 scrolls vertically and horizontally by operating the mouse 15 (by moving the cursor and pressing the click button), any number of parts of any size can be displayed. In the parts dialog box D2, each part type is classified into a part type corresponding to the P port part, a part type corresponding to the S port part, and a part type corresponding to other parts, and is also classified. It is pre-nested and displayed for each of the created parts groups. The preliminary nesting is to arrange the component types having the same shape in a nested manner in a point-symmetrical direction and display them in order of length.

The material selection button B is an area in which a command for calling the material type selection menu shown in FIG. 4 is input to the CPU 11 when the click button of the mouse 15 is pressed while the cursor is displayed on the material selection button B. Is. In this material type selection menu, the symbols indicating the steel material types corresponding to the respective screen data are enumerated, and the mouse 15 is displayed while the cursor is displayed on any of the symbols.
When the click button of is pressed, the screen data corresponding to the steel material type indicated by the symbol is selected by the display processing unit 111, and the component placement work screen S based on the selected screen data is displayed by the display processing unit 111. 18 is displayed.

The temporary placement portion 114 as the "placement means" and the "temporary placement means" is a steel material type selected by the operator using the mouse 15 (pointed by the cursor when the click button of the mouse 15 is pressed. Steel material mold), the processing for rewriting the steel material mold data representing the selected steel material mold is performed so that the similarly selected component mold is arranged. By this rewriting, the coordinate value of each node of the component type is the local coordinate (hereinafter, referred to as the local coordinate that defines the steel type in the steel type data while maintaining the mutual positional relationship.
The value is referred to as "reference coordinate system").

The temporary placement section 114 places the selected component die at the left end of the steel material die with the long sides aligned with each other when no component die is placed on the selected steel material die. The steel material type data is rewritten as described above. Also,
The temporary placement unit 114, if any of the component types has already been placed in the selected steel material type, the component type arranged on the rightmost side on the steel material type (hereinafter, referred to as “determined component type”). ), A steel material mold data is rewritten so that the selected component mold (hereinafter referred to as “undetermined component mold”) is temporarily arranged with a certain distance (and with the long sides aligned with each other). At this time, when the steel material type corresponding to the screen data selected by the display processing unit 111 is the angle material, the temporary placement unit 114 only temporarily places the selected component type as it is, but Processing unit 111
When the steel material type corresponding to the screen data selected by is a flat bar, as shown in FIG.
The basic part type that is the selected part type itself (see FIG. 14).
(see (a)) is temporarily placed, and then the first inverted component mold is obtained by horizontally inverting the basic component mold in the x-axis direction (see FIG. 14 (b)).
Is temporarily arranged, and then the second inverted part mold (see FIG. 14 (c)) having a shape obtained by vertically inverting the basic part mold in the y-axis direction is temporarily arranged. The third inverted component mold (see FIG. 14D) having the inverted shape is temporarily placed. This is because, from the flat bar, no matter how the parts die is inverted and cut out, the parts having the same shape can be cut out.

Deviation amount calculation unit 1 as "deviation calculation means"
In the screen data, reference numeral 15 calculates the amount of deviation between the nodes of the fixed component type placed on the steel material type and the undetermined component type temporarily placed by the temporary placement unit 114. Specifically, the shift amount calculation unit 115 shifts between the nodes having the same y coordinate value in the reference coordinate system among the nodes that define the opposite sides of the two component types arranged in the reference coordinate system. The amount (distance and direction from the node of the confirmed component type to the node of the undetermined component type) is calculated. The deviation amount calculation unit 11
5 indicates that when a node having a certain y coordinate value exists only in one of the component types, a new node is generated at the coordinate point corresponding to the y coordinate value in the other component type, and then these two node types are generated. Calculate the amount of deviation between them. For example, in the example of FIG. 19, since there is no node having the coordinate value y ₂ in the fixed part type on the left side, a new node N ₂ [x ₂ , y ₂ ] is generated, and the node N in the fixed part type is generated. The deviation amount between ₂ [x ₂ , y ₂ ] and the node N ₆ [x ₄ , y ₂ ] in the undetermined part type is S2 (=
x ₄ −x ₂ ) is calculated. Similarly, since there is no node having the coordinate value y ₃ in the undetermined part type on the right side, a new node N ₇ is added.
[X ₅ , y ₃ ] is generated, and the node N in the confirmed part type
₃ [x ₃ , y ₃ ] and a node N ₇ [x ₅ ,
The amount of deviation from y ₃ ] is calculated as S3 (= x ₅ −x ₃ ).
Further, as described above, when the temporary placement unit 114 sequentially reverses the component types to perform the temporary placement, the shift amount calculation unit 115 calculates the shift amount between the nodes for each of the basic type and the inverted type. .

The movement processing section 116 as the "specifying means" and the "moving means" specifies the smallest deviation amount between the nodes calculated by the deviation calculating section 115 as the "minimum deviation amount" (specification Equivalent to the means), the same distance as the specified "minimum shift amount" and in the opposite direction (approaching the confirmed part type)
Direction) , the steel material type data representing the selected steel material type is rewritten so that the undetermined part type moves. As described above, when the temporary placement unit 114 sequentially reverses the component types to perform the temporary placement, the movement processing unit 116 calculates each deviation calculated by the deviation amount calculation unit 115 for each basic mold and each reverse mold. The smallest deviation amount is specified as the “minimum deviation amount”. Then, the movement processing unit 116 selects the largest one of the four specified "minimum deviation amounts" (corresponding to a selection unit), and the same distance and the opposite direction (corrected ) as the selected "minimum deviation amount".
Move the undetermined part type toward the fixed part type ) .

Confirmation processing section 117 as "determination means"
Performs the processing such as determining the position of the undetermined component type provisionally placed by the temporary placement unit 114 and changing the display color of the determined component type. Specifically, when the temporary placement unit 114 temporarily places the component mold at the left end of the steel material mold, the confirmation processing unit 117 immediately determines the position of the temporarily arranged component mold. On the other hand, the confirmation processing unit 117 determines that the temporary placement unit 11
When the component die temporarily arranged by 4 is moved by the movement processing unit 116, the position of the component die after the movement is determined.

The storage processing unit 118, when all the component types displayed in the image data selected by the display processing unit 111 are arranged on the steel material die, stores the steel material die via the LAN interface 10. The represented steel material type data is transmitted to the nesting result database 2. (Contents of Program) Next, the flow of the nesting process executed by the CPU 11 that has read the nesting program from the floppy disk FD will be described with reference to FIGS . 5 to 10.

The CPU11, when the start command is input by the operator through the keyboard 14, to start the execution of the nesting program from the "Start" position in Fig.

In the first S001 after the start, the CPU1
1 reads all component design data from the component database 7. In next step S002, the CPU 11 classifies all the component design data read in step S001 by material .

At the next step S003, the CPU 11 causes the step S00.
In order to create component type data based on each component design data classified in 2, component type data creation processing is performed.
FIG. 7 is a flowchart showing the contents of the component type data creation processing subroutine executed in S003.

Immediately after entering this subroutine, the CPU 11 executes the loop processing of S101 to S103 to create the component type data for the flat component. In the first S101 after entering this loop processing, the CP
U11 takes out one part design data for the flat part. In the next S102, the CPU 11 causes the S11
Based on the three-dimensional shape included in the component design data extracted in step 1, the planar shape of the component corresponding to this component design data is defined using the coordinate values of each node on the local coordinates, and To generate. Next S1
In 03, the CPU 11 checks whether or not the processes of S101 and S102 have been completed for all the component design data of the flat component. Then, if the processing has not been completed for all the component design data for the flat component, the CPU 11 performs the processing in S1.
Return to 01.

On the other hand, if the processing has been completed for all the component design data for the flat component, the CPU 11 executes the steps S104 to S107 in order to create the component type data for the angle component. Executes loop processing. First S104 after entering this loop processing
Then, the CPU 11 extracts one piece of component data for the angle component. In the next S105, the CPU 11
The three-dimensional shape included in the component design data extracted in S104 is developed into a two-dimensional shape. In the next S106, the CPU
In step 11, the plane shape developed in S105 is defined using the coordinate values of each node on the local coordinates, thereby generating the component type data. In the next S107, CP
U11 checks whether or not the processing of S104 to S106 has been completed for all the component design data for the angle component. Then, if the processing has not been completed for all the component design data for the angle component, the CPU 11 returns the processing to S104. On the other hand, when the processing is completed for all the component design data for the angle component, the CPU 11
Ends this part type data creation processing subroutine and returns the processing to the main routine of FIG.

In the main routine of FIG. 5 in which the processing is returned, the CPU 11 executes the following S004 to S004.
All steel material data is read from the steel material database 5. In next step S005, the CPU 11 executes a steel material type data creating process in order to create steel material type data based on each steel material data read in step S001. FIG. 8 shows S00.
6 is a flowchart showing the contents of a steel material type data creation processing subroutine executed in 5. Immediately after entering this subroutine, the CPU 11 executes the loop processing of S201 to S203 in order to create the steel material mold data for the flat bar. In the first step S201 after entering this loop processing, the CPU 11 extracts one piece of steel material data for the flat bar. In the next S202, the CPU
11, the steel material type data is defined by defining the planar shape of the steel material corresponding to this steel material data based on the three-dimensional shape included in the steel material data extracted in S201 by using the coordinate values of each node on the local coordinates. To generate. In the next S203, the CPU 11 checks whether or not the processes of S201 and S202 have been completed for all the steel material data of the flat bar. Then, when the processing has not been completed for all the steel material data for the flat bar, the CPU 11 executes the processing in S20.
Return to 1.

On the other hand, when the processing is completed for all the steel material data of the flat bar,
The CPU 11 executes the loop processing of S204 to S207 in order to create the steel material type data for the angle steel material. In the first step S204 after entering this loop processing, the CPU 11 retrieves one steel material data regarding the angle steel material. In the next S205, the CPU 11 causes the S
The three-dimensional shape included in the steel material data extracted in 204 is developed into a plane shape. In the next S206, the CPU 11
Generates steel material type data by defining the plane shape developed in S205 using the coordinate values of each node on the local coordinates. In the next S207, the CPU 11
Checks whether or not the processing of S204 to S206 has been completed for all the steel material data regarding the angle steel material. Then, if the processing has not been completed for all the steel material data of the angle steel material, C
PU11 returns a process to S204. On the other hand, when the processing has been completed for all the steel material data of the angle steel material, the CPU 11 ends the steel material type data creation processing subroutine and returns the processing to the main routine of FIG. .

In the main routine of FIG. 5 in which the processing is returned, the CPU 11 executes the following steps from S005 to S006:
The screen data shown in FIG. 3 is created for each steel material type for which the steel material type data was created in S005, and the screen data holding unit 123 is created.
To store.

At the next step S007, the CPU 11 causes the step S00.
The screen data existing at the head position in the screen data holding unit 123 is extracted from the screen data created in 6. In the next S008, the CPU 11 causes S007 (or
The steel material type data corresponding to the screen data extracted in S023 or S026 described later is incorporated, and the steel material type based on the respective steel material type data is displayed in the steel material dialog box D1 in the component placement work screen S based on the screen data. Process as described.

At the next step S009, the CPU 11 causes the step S00.
7 (or S023 or S026 described later) corresponding to the part type data (that is, S
The component placement work screen S based on the screen data is incorporated by incorporating the component type data indicating the component having the same width, the same cross-sectional shape and the same material as the steel type indicated by the steel type data incorporated in Processing is performed so that the part type based on the respective part type data is displayed in the inside part dialog box D2.

At the next step S010, the CPU 11 causes the step S00.
8 and the component placement work screen S is displayed on the display 18 based on the screen data incorporated in S009.

At the next step S011, the CPU 11 has the operator select one of the steel materials from the steel material dialog box D1 of the component arrangement work screen S. Then, when any one of the steel materials is selected, the CPU 11 advances the processing to S012.

In S012, the CPU 11 highlights the selected steel material mold in the steel material dialog box D1 of the component placement work screen S. In the next S013, C
The PU 11 checks whether or not any component type is selected from within the component dialog box D2 of the component placement work screen S. Then, if the component type has not been selected yet, the CPU 11 advances the process to S017.

In S017, the CPU 11 checks whether the operator has selected a steel material mold different from the highlighted steel material mold from the steel material dialog box D1 of the component arrangement work screen S. Then, if another steel material mold is not selected, the CPU 11 advances the process to S020. On the other hand, when another steel material type is selected, the CPU 11 highlights the display form of the originally selected steel material type (the steel material type highlighted at that time) in S018. Then, the newly selected steel material mold is highlighted in the steel material dialog box D1 of the component placement work screen S. After the completion of S018, the CPU 11 advances the process to S020.

On the other hand, when it is determined in S013 that the component type is selected, the CPU 11 executes the processing in S014.
Proceed to. In S014, the CPU 11 executes a component type placement process in order to place the selected component type on the selected steel material type. FIG. 9 is a flowchart showing the contents of the component type placement processing subroutine executed in S014.

First step S301 after entering this subroutine
Then, the CPU 11 checks whether or not the component mold is already arranged on the selected steel material mold. Then, if the component type is not arranged yet, the CPU 11 executes S
In 302, the component mold is arranged by filling the left end (x = 0) of the selected steel material mold (corresponding to arrangement means). At this time, if the steel material type is an angle material, the steel material mold and the component mold are arranged with their ridge lines matched. After the completion of S302, the CPU 11 executes the processing in S3.
Proceed to 15.

On the other hand, when it is determined in S301 that the component mold is already arranged on the selected steel material mold, the CPU 11 moves to the rightmost (+ x side) on the steel material mold in S303. Read the x-coordinate value of the one on the rightmost side (+ x side) (the node with the largest x-coordinate value) out of the nodes that specify the part type (confirmed part type) that is placed, and use this x-coordinate value. It is specified as the "shape origin".

In the next step S304, the CPU 11 sets x at the local coordinate of the selected part type (undetermined part type).
Direction total length (from the node on the leftmost [-x side] to the rightmost [+
x side] to the node) is specified as the "total length of the part".

At the next step S305, the CPU 11 causes the step S30.
The sum of the value of the "shape origin" specified in 3 and the value of the "total component length" specified in S304 is calculated, and the x coordinate value larger than the calculated value is specified as the "temporary placement reference point". .

At the next step S306, the CPU 11 checks whether or not the currently displayed component placement work screen is for angle steel. Then, in the case of the angle steel material, the CPU 11 causes the S313
In, the shift amount calculation process is executed with the selected component type itself as the processing target component type. FIG. 10 shows S306.
5 is a flowchart showing a shift amount calculation processing subroutine executed in step S6.

First step S401 after entering this subroutine
Then, the CPU 11 determines that the x-coordinate value of the node on the rightmost side (+ x side) of the nodes that define the type of component to be processed coincides with the x-coordinate value of the “temporary placement reference point” in the reference coordinate system. The part mold to be treated is temporarily arranged on the steel material mold (corresponding to a temporary arrangement means).

At the next step S402, the CPU 11 reads the y-coordinate values of all the nodes defining the right side portion of the confirmed part type. In the next S403, the CPU 11 reads the y-coordinate values of all the nodes that define the left side portion of the undetermined part type.

At the next step S404, the CPU 11 causes the step S40.
2. Compare all y-coordinate values read in 2 with all y-coordinate values read in S403, and if there is a y-coordinate value that exists only in one part type, between the existing node points in the other part type. At, the node having the y coordinate value is set.

At the next step S405, the CPU 11 selects the same y from among the nodes of the fixed part type and the unfixed part type.
Amount of misalignment between objects having coordinate values (relative x-coordinate value up to undetermined part type nodes based on fixed part type nodes)
Are calculated respectively (corresponding to deviation amount calculating means).

At the next step S406, the CPU 11 causes the step S40.
The smallest deviation amount calculated in 5 is specified as the "minimum deviation amount" (corresponding to the specifying means), and the same distance in the opposite direction to the specified "minimum deviation amount" is referred to as the "shift amount". To do. After the completion of S406, the CPU 11 returns the process to the part type placement routine of FIG.

In the component type placement routine of FIG. 9, S313
After completion of, the process proceeds to S314. On the other hand, if it is determined in S306 that the component placement work screen currently displayed is for the flat bar, the CPU 11
In S307, the component type data of the above-described three types of inversion component types (first inversion component type, second inversion component type, third inversion component type) are respectively set with the selected component type as the basic component type. To generate.

At the next step S308, the CPU 11 specifies the basic part type as the part type to be processed. In the next S309, the CPU 11 executes the shift amount calculation process for the specified process target component type. Note that this S309
However, similarly to S313, the shift amount calculation processing subroutine of FIG. 10 is executed.

At the next step S310, the CPU 11 causes the step S30.
It is checked whether or not the shift amount calculation processing of S309 has been completed for all the inverted component types generated in 7.
Then, if the shift amount calculation processing has not been completed for all the reversed component types, the CPU 11 executes S3.
After the next reversed component type (the first reversed component type when S311 is first executed) is specified as the processing target component type in 11, the process returns to S309. On the other hand, when the shift amount calculation process has been completed for all the reversed component types, the CPU 11 advances the process to S312.

In S312, the CPU 11 has the largest distance (= -x) among the four "shift amounts" calculated in S309 for the reference component type and the three types of reversal component types.
(A large amount in the direction), and the one corresponding to the selected “shift amount” among the basic component type and the three types of reversal component types. After the completion of S312, the CPU 11 advances the process to S314.

In S314, the CPU 11 determines the undetermined part type (S312 if S307 to S312 are executed).
(The part type specified in step S401) is moved by the same distance in the "shift amount" direction (usually in the -x direction) from the temporary placement position in S401 (corresponding to the moving means). The placement position of is confirmed (corresponding to the confirmation means). S3
After the completion of 14, the CPU 11 advances the process to S315.

In S315, the CPU 11 executes mirroring. This mirroring is for the other of the S port component and the P port component when the component type moved / determined in S314 is for one of the S port component and the P port component. Then, move the part type symmetrical to the moved / confirmed part type onto the steel material type displayed next to the currently selected steel material type.
This is a process for automatically arranging in a line-symmetrical positional relationship with the decided part type. After completion of S315, the CPU 11
Completes this parts placement subroutine and returns the process to the main routine of FIG.

In the main routine where the processing is returned,
The CPU 11 executes S0 in S015 after S014.
It is checked whether or not the selected component mold can be arranged on the selected steel material mold as a result of the component mold arrangement processing in 14. If the component die cannot be placed on the steel material die, for example, if the remaining length of the steel material is insufficient, the CPU 11
Advances the process to S019. In S019, the CPU1
The item 1 returns the display form of the selected steel material type from the highlighted display to the original form. After the completion of S019, the CPU 11 executes the processing in S
Return to 011.

On the other hand, when it is determined in S015 that the component mold can be arranged on the steel material mold, the CPU 11
The process proceeds to S016. In S016, the CPU 11
Displays "already placed" on the part type that could be placed on the steel material mold, calculates the used length and the remaining length for the selected steel material mold, and calculates the calculated used length and remaining length. Is displayed. After the completion of S016, the CPU 11 executes the processing in S0.
Proceed to 20.

In S020, the CPU 11 determines whether or not the component molds are arranged on all the steel material molds displayed on the component arrangement work screen S currently displayed (that is, the remaining length is sufficient to arrange the component molds). It is checked whether or not there is no steel material type) and whether or not "arranged" is displayed for all the component types displayed on the component placement work screen S currently displayed. And, the part type is not yet arranged on all the steel material molds (that is, there is still a steel material mold having a residual length sufficient for arranging the part molds), and moreover, it is "already arranged" for all the part molds. If not displayed, the CPU 11 executes the processing in S
Proceed to 021.

In S021, the CPU 11 checks whether or not the material type selection button B in the component placement work screen S has been clicked. Then, when the material type selection button B is not clicked, the CPU 11 performs the processing in S013.
Return to.

The above-described S013 to S016 and S0
Loop processing of 20 to S021, and S011 to S01
As a result of repeating the loop processing of 5 and S019, when it is determined in S021 that the material type selection button B has been clicked, the CPU 11 advances the processing to S022.

In S022, the CPU 11 sends the steel material type data incorporated in the currently displayed component placement work screen S to the nesting result database 2. When the steel material type data is transmitted to the nesting result database 2 in this way, the network printer 3 prints the steel material type in which the component type is arranged based on the steel material type data. The operator cuts out a part from an actual steel material with reference to the printed steel material mold. Or LA
A machine tool (not shown) connected to N8 reads the steel material type data from the nesting result database 2 and automatically cuts a part from an actual steel material according to the steel material type data.

At the next step S023, the CPU 11 fetches the screen data corresponding to the steel material type selected by the operator from the menu displayed as a result of clicking the material type selection button B, from the screen data holding section 123. S02
After the completion of 3, the CPU 11 returns the processing to S008 so as to execute the processing for the newly extracted screen data.

On the other hand, S013-S016 and S020-
As a result of repeating the loop processing of S021 and the loop processing of S011 to S015 and S019, when it is determined that the component molds are arranged on all the steel material molds (that is, a steel material having a residual length sufficient to arrange the component molds). If it is determined that there is no mold), or if it is determined that "placed" is displayed for all the component molds, the CPU 11 executes the processing in S02.
From 0 to S024.

In S024, the CPU 11 sends the steel material type data incorporated in the currently displayed component placement work screen S to the nesting result database 2. Also in this case, printing by the network printer 3 or automatic cutting of parts by a machine tool (not shown) is performed as described above.

At the next step S025, the CPU 11 causes the screen display
There is still unextracted screen data in the data holding unit 123.
Check whether or not And the screen data that has not been taken out yet
If the data remains, the CPU 11 advances to S026.
Is currently displayed in the screen data holding unit 123.
Located at the next position of the screen data corresponding to the parts placement work screen
After extracting the screen data for
In order to execute the processing on the surface data, the processing is moved to S008.
return. On the other hand, there is still unextracted screen data.
If it is determined in S025 that there is not, the CPU 11
This nesting process ends. (Example of operation of nesting system) Next, as described above
Example of actual processing by the configured nesting system
Will be described with reference to FIGS. 15 through FIG.
18 arranges the first part F1 on the steel material mold of the flat bar
-The following shows an example of arranging the second part F2 after confirmation.
is doing. Therefore, in this case, as shown in FIG.
The second part F2 indicated by the original part type data
Based on the basic part type of
Shape of the first inverted part type, basic part type upside down
Second flip parts type and basic parts type are flipped vertically and horizontally
A third inverted part mold having the shape described above is generated (S307).
Then, as shown in FIG. 15 to FIG.
Shift amount calculation processing for the
It is executed (S309). For each shift amount calculation process
The nodes that make up the first part F1 (fixed part type)
N ₂[X₂, Y₂] X coordinate value = x₂Is the "shape origin"
Specified. Also, this x coordinate value = x₂Second against
X coordinate value greater than the value of the total length of the part F2 =
x_TenIs specified as the “temporary arrangement reference point”.

FIG. 15 shows the shift amount calculation processing for the basic part type. Deviation amount calculation process (S
405), the amount of deviation between the node N ₁ [x ₁ , y ₁ ] in the first part F1 (fixed part type) and the node N ₆ [x ₄ , y ₁ ] in the second part F2 (basic part type). Is S1 (= x ₄ −
x ₁ ), and the node N ₂ [x ₂ , y ₂ ] in the first part F 1 (fixed part type) and the node N ₅ [x ₃ , y ₂ ] in the second part F 2 (basic part type) are calculated. The amount of deviation is S2
(= X ₃ −x ₂ ), and the node N ₃ [x ₂ , y ₃ ] in the first part F 1 (fixed part type) and the node N ₄ [x ₃ in the second part F 2 (basic part type) are calculated. , Y ₃ ] is calculated as S2 (= x ₃ −x ₂ ). Therefore, "the minimum amount of deviation" specified at this time will _{S2 (= x 3 -x 2)} (S406).

FIG. 16 shows the shift amount calculation processing for the first inverted component type. In the deviation amount calculation process (S405) at this time, the node N ₁ [x ₁ , y ₁ ] in the first component F1 (fixed component type) and the node N ₉ in the second component F2 (first inverted component type) are set. x ₃ , y ₁ ], the amount of deviation is S3
(= X ₃ −x ₁ ) is calculated, and the node N ₂ [x ₂ , y ₂ ] in the first part F 1 (fixed part type) and the node N ₈ in the second part F 2 (first inverted part type) are calculated. x _3, the amount of deviation between y _2] is calculated as _{S2 (= x 3 -x 2)} , the node N ₃ [x ₂ in a first component F1 (confirmed-part), y _3] and the second component F2 Nodal point N ₇ [x ₃ , y ₃ ] in (first inverted component type)
Deviation between is calculated as _{S2 (= x 3 -x 2)} . Therefore, the "minimum shift amount" specified at this time is also S2 (= x
₃₋ x ₂ ) (S406).

FIG. 17 shows a shift for the second reversal part type.
FIG. Deviation amount calculation process at this time
In (S405), the first part F1 (confirmed part type)
K node K₁[X₁, Y₁] And the second component F2 (second inversion unit
Nodal point N in product type)₁₁[X₃, Y₁] The amount of deviation from
(= X₃-X₁) Is calculated and the first part F1 (fixed part)
Type) node N_Ten[X_Five, Y_Four] And the second component F2 (first
2 inversion parts type)₁₂[X₃, Y_Four] With
The amount is S4 (= x₃-X_Five) Is calculated, and the first component F1 (confirmed
Node N in fixed part type)₂[X₂, Y₂] And the second part
Node N in F2 (second inverted component type)₁₃[X₆, Y₂]
The amount of deviation from S4 (= x₆-X₂) Is calculated as the first part
Node N in F1 (fixed part type)₃[X₂, Y₃]When
Node N in the second part F2 (second inverted part type)₁₄[X
_Four, Y₃] Is the amount of deviation from S3 (= x _Four-X₂) Is calculated
It Therefore, the "minimum shift amount" specified at this time is S
4 (= x₃-X_Five= X₆-X₂), Becomes (S406).

FIG. 18 shows the shift amount calculation processing for the third inverted component type. In the shift amount calculation process (S405) at this time, the node N ₁ [x ₁ , y ₁ ] in the first part F1 (fixed part type) and the node N ₁₅ [in the second part F2 (third inverted part type)]. x ₃ , y ₁ ], the amount of deviation is S3
(= X ₃ −x ₁ ) is calculated, and the node N ₂ [x ₂ , y ₂ ] in the first part F1 (fixed part type) and the node N ₁₆ in the second part F2 (third inverted part type) are calculated. x _3, the amount of deviation between y _2] is calculated as _{S2 (= x 3 -x 2)} , the node N ₃ [x ₂ in a first component F1 (confirmed-part), y _3] and the second component F2 Nodal point N ₁₇ [x ₃ , y ₃ ] in (third inverted component type)
Deviation between is calculated as _{S2 (= x 3 -x 2)} . Therefore, the "minimum shift amount" specified at this time is S2 (= x
₃₋ x ₂ ) (S406).

When four "minimum shift amounts" are prepared by the shift amount calculation processing (S309) executed for each of them,
The magnitudes of these four "minimum shift amounts" are compared. As a result, S4 specified for the second inverted component type is specified as the maximum "minimum deviation amount". Then, based on the result, the second inverted component mold is moved by the distance S4 in the −x direction. Since the "minimum deviation amount" S4 at this time is larger than the "minimum deviation amount" S2 specified for the basic part type, the left end of the second part F2 (second inversion type) has the basic type as the "minimum deviation amount". "Move to the right (-x side) than when moved according to S2. As a result, the working length of the steel material can be saved more than the working length in any other case.

As described above, according to the present embodiment, the undetermined component type is completely separated from the determined component type when the undetermined component type is temporarily placed at the temporary placement reference point, but in the reference coordinate system. The amounts of deviation between nodes having the same y-coordinate value (of both component types) are calculated, and the smallest of the calculated amounts of misalignment is taken as the "minimum amount of deviation", which is the reverse of this "minimum amount of deviation". Since the undetermined part mold is moved by the same distance in the direction, the undetermined part mold comes into contact with the confirmed part mold without overlapping.

Further, according to the present embodiment, when the layout symmetrical component type is a flat component, three types of inverted component types are created in addition to the basic component type, and the "minimum deviation amount" is specified for each of them. After that, the maximum one of the four "minimum deviation amounts" is selected, and the undetermined part mold is moved by the same distance in the opposite direction to the selected "minimum deviation amount". It is possible to automatically determine the arrangement position and the arrangement posture that can minimize the use length.

[0090]

Second Embodiment FIGS. 20 to 23 show a component placement process according to a second embodiment of the present invention.

As can be seen from FIG. 20, in the second embodiment, the leftmost node (+ x side) of the nodes defining the part type in the local coordinate system is the "temporary arrangement". Tentative placement in the reference coordinate system such that the temporary placement reference point in the part type has the same x-coordinate value as the “shape origin” in the confirmed part type.
Then, the deviation amount between those having the same y-coordinate value at each node defining the fixed part type and each node defining the provisionally arranged unfixed part type (undetermined based on the node of the fixed part type The direction and distance to the node of the part type are calculated. Then, the smallest one among the calculated deviation amounts is specified as the “minimum deviation amount”.

In the example of FIG. 20, the node N ₂ [x ₂ , y ₂ ] and the second part F2 in the first part F1 (fixed part type) are used.
The amount of deviation between the node _{N 20 [x 3, y 2} ] in _{(Basic-part) (-S5 = x 3 -x 2} ) is identified as the "minimum shift amount". Therefore, when the steel material type is the angle material, the second component F2 (undetermined component type) is moved by the distance S in the + x direction.
If it is moved by 5, the second component F2 (undetermined component type) comes into contact with the first component F1 (determined component type) without overlapping.

On the other hand, when the steel material type is a flat bar, three types of reversal component types are created based on the basic component type of the undetermined component type as in the case of the first embodiment described above. , The temporary placement and the “minimum shift amount” are calculated according to the above-described rules. However, in the second embodiment, unlike the case of the above-described first embodiment, only the size of the “minimum shift amount” is compared to move the
A value obtained by subtracting the "minimum deviation amount" from the "projection amount" in the + x direction from the "shape origin" of the undetermined part type during temporary placement, rather than selecting the part type to be confirmed (= undetermined part (Projection amount from the "origin of shape" after the mold moves)
The part type with the smallest value is specified as the part type to be moved / fixed.

For example, in the case of the basic part type shown in FIG. 20, since the "projection amount from the shape origin" is "0", the value obtained by subtracting the "minimum deviation amount" from the "projection amount" is S5. Further, in the case of the first inverted component type shown in FIG. 21, since the “projection amount from the shape origin” is S5 and the “minimum deviation amount” is “0”, the “projection amount from the shape origin” becomes “ The value obtained by subtracting the "minimum shift amount" is S5. In addition, in the case of the second reversal component type shown in FIG. 22, "amount of protrusion from the shape origin"
Is “0” and the “minimum deviation amount” is −S6,
The value obtained by subtracting the "minimum shift amount" from the "projection amount from the shape origin" is S6. Further, in the case of the third reversal component type shown in FIG. 23, since the “projection amount from the shape origin” is S5 and the “minimum deviation amount” is “0”, the “projection amount from the shape origin” is calculated. The value obtained by subtracting the "minimum shift amount" is S5. As a result, since S6 is smaller than S5, the second inverted component mold is selected as the component mold to be moved / determined, and moved by the distance S6 in the + x direction from the temporary arrangement position shown in FIG.

Thus, also in the second embodiment,
It is possible to obtain the same effect as that of the first embodiment described above. The rest of the configuration and operation of the second embodiment are exactly the same as those of the first embodiment described above, so a description thereof will be omitted.

[0096]

According to the component arranging apparatus of the present invention configured as described above, the total amount of data to be processed is kept small when the cutting position for efficiently cutting a plurality of components from one long material is determined. be able to. Also,
Since it is possible to determine the optimum arrangement position with a fixed number of processing steps without performing trial and error by repeating the movement and determination of the component type, it is possible to shorten the processing time by suppressing the number of processing steps.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of a ship manufacturing system according to a first embodiment of the present invention.

FIG. 2 is a block diagram showing a circuit configuration of the nesting system shown in FIG.

3 is a diagram showing a component placement work screen displayed on the display device of FIG.

FIG. 4 is a diagram showing a menu screen called by a material type selection button in FIG.

5 is a flowchart showing the contents of nesting processing executed by the CPU of FIG. 2 in accordance with a nesting program.

FIG. 6 is a flowchart showing the contents of nesting processing executed by the CPU of FIG. 2 according to a nesting program.

FIG. 7 is a flowchart showing the contents of a component type data creation processing subroutine executed in S003 of FIG.

FIG. 8 is a flowchart showing the contents of a steel material type data creation processing subroutine executed in S005 of FIG.

9 is a flowchart showing a component type arrangement processing subroutine executed in S014 of FIG.

FIG. 10 is a flowchart showing a shift amount calculation process subroutine executed in S309 and S313 of FIG.

FIG. 11 is a perspective view showing a shape example of a steel material and parts.

FIG. 12 is a coordinate diagram showing the structure of part type data.

FIG. 13 is a coordinate diagram showing the structure of part type data for angle parts.

FIG. 14 is a plan view showing the relationship between the basic part type and each reversal part type.

FIG. 15 is an explanatory diagram showing identification of a minimum deviation amount for a basic part type.

FIG. 16 is an explanatory diagram showing identification of a minimum deviation amount for the first reversal component type.

FIG. 17 is an explanatory diagram showing identification of the minimum deviation amount for the second reversal component type.

FIG. 18 is an explanatory diagram showing identification of a minimum deviation amount for a third reversal component type.

FIG. 19 is an explanatory diagram showing identification of a minimum deviation amount when there is no node having the same y coordinate value.

FIG. 20 is an explanatory diagram showing identification of a minimum deviation amount for a basic part mold according to the second embodiment of the present invention.

FIG. 21 is an explanatory diagram showing identification of a minimum deviation amount for the first reversal component mold according to the second embodiment of the present invention.

FIG. 22 is an explanatory diagram showing identification of a minimum deviation amount for a second reversal part mold according to the second embodiment of the present invention.

FIG. 23 is an explanatory diagram showing identification of a minimum deviation amount for a third reversal part mold according to the second embodiment of the present invention.

[Explanation of symbols]

1 Nesting system 11 CPU 13 Disk driver 15 mice 18 Display device 114 Temporary placement part 115 Deviation amount calculation unit 116 Movement processing unit 117 Confirmation Processing Unit 121 Part type data storage 122 Steel material data storage 123 screen data storage FD floppy disk

Claims (10)

(57) [Claims] 1. A component in which a component mold showing a planar shape of each component is arranged on a material mold showing a planar shape of the material in order to determine cutting positions of a plurality of plate-shaped components from one long material. In the placement device, a part type data holding means for holding part type data defining the part type as a set of local coordinate values indicating the relative positions of the nodes in the planar shape of the part, and parallel to the longitudinal direction of the material type. A material type data holding means for holding the material type data defining the material type in an orthogonal coordinate system composed of a first axis and a second axis orthogonal to the first axis and a material type corresponding to the material type data. Arranging means for arranging a part type corresponding to one part type data and fixing its position, and a part type corresponding to another part type data on the material type with respect to the position confirmed part type The above Temporary placement means for temporarily placing side by side along one axis, and the coordinates in the second axis direction among the nodes on the opposite sides of the position-determined part type and the part type temporarily placed side by side. A deviation amount calculating means for calculating a deviation amount between those having the same value, and a specifying means for specifying a smallest deviation amount among the deviation amounts between the nodes calculated by the deviation amount calculating means as a minimum deviation amount, close to the minimum shift amount at the same distance and position Committed component type
A moving part for moving the temporarily arranged part mold along the first axis in a predetermined direction , and a fixing part for fixing the position of the part mold moved by the moving part. Placement device. 2. The temporary placement means sequentially inverts the other component die placed on the material die in the direction of the first axis and / or the second axis, and the deviation calculating means sets the temporary placement means. each time the placement means inverts the same component type, wherein calculating a shift amount of each node to each other, said specifying means, said each time the temporary arrangement means inverts the same component type, the deviation calculating means is calculated The smallest displacement amount between the nodes is specified as the minimum displacement amount, and the moving unit selects a selecting unit that selects the largest displacement amount among the minimum displacement amounts specified by the specifying unit for the same component type. together with, the component type minimum shift amount selected by the selecting means are in a state when it is specified by the specifying means, a minimum shift amount at the same distance and position Committed selected by said selection means To goods type
The component placement device according to claim 1, wherein the component placement device is moved in the approaching direction . 3. The displacement amount calculating means, when the node having a certain coordinate value in the second axis direction is present only in one of the position-determined part mold and the part mold temporarily arranged side by side with the node mold. 3. The component placement device according to claim 1 or 2, characterized in that after setting a node having a coordinate value in the second axis direction on the other component mold, a deviation amount between the respective nodes is calculated. . 4. When the material and the part are made of an angle material, the part type data defines a part type showing a planar shape in a state where the part is expanded, and the material type data expands the material. Define a material type showing a planar shape in the state, the arranging means and the temporary arranging means, in the state of matching the ridge lines in the component and the material, to arrange the component mold on the material mold. The component placement device according to claim 1, which is characterized in that. 5. When the material and the part are made of an angle material, the part type data defines a part type showing a planar shape in a state where the part is expanded, and the material type data expands the material. Define a material mold showing a planar shape in the state, the arrangement means, while aligning the ridgelines in the component and the material, arranges the component mold on the material mold, the temporary arrangement means , Arranging the component mold on the material mold in a state where the ridge lines in the plate-shaped component and the plate material are matched and maintaining the component mold as it is without being inverted until moved by the moving means. The component placement device according to claim 3, which is characterized in that. 6. The component placement device according to claim 1, further comprising a material type data generating means for generating the material type data based on information specifying the type of the material. 7. The component placement apparatus according to claim 1, further comprising a component type data generating means for generating the component type data based on information specifying the shape of the component. 8. A component arrangement in which a component mold showing a planar shape of each component is arranged on a material mold showing a planar shape of the material in order to determine cutting positions of a plurality of components from one long material. In the method, the part type is defined as a set of local coordinate values indicating relative positions of respective nodes in a planar shape of the part, and a first axis parallel to a longitudinal direction of the material type and a second axis orthogonal to the first axis. Define the material type in a Cartesian coordinate system consisting of, place one component die on the material die to determine its position, and position other component types on the material die Temporarily arranged side by side along the first axis with respect to the mold, the second axial direction among the nodes on the opposite sides of the position-determined part mold and the part mold temporarily arranged side by side Amount of deviation between items with the same coordinate value Calculated, the smallest among the calculated shift amount specified as the minimum shift amount, close to the minimum shift amount and the distance and position Committed component type
The component placement method, wherein the temporarily placed component die is moved along the first axis in a predetermined direction , and the position of the component die after the movement is determined. 9. The other part molds arranged on the material mold are sequentially reversed in the direction of the first axis and / or the second axis, and each time the other part mold is reversed, each of the nodes Calculates the amount of deviation between each other, specifies the smallest of the calculated deviations as the minimum deviation, selects the largest of the minimum deviations specified for the same part type, and selects The component die in the state when the minimum displacement amount is specified has the same distance as the minimum displacement amount and the position has been determined.
9. The component arranging method according to claim 8, wherein the component arranging method is moved in a direction approaching the component mold . 10. A component type is defined to a computer as a set of local coordinate values indicating relative positions of respective nodes indicating a planar shape of the component, and a first axis parallel to the longitudinal direction of a long material and this. In a Cartesian coordinate system consisting of a second axis orthogonal to, the planar shape of the material is defined as a material mold, one component mold is arranged on the material mold, and its position is determined, And other component molds are arranged side by side along the first axis with respect to the position-determined component molds, and the position-determined component molds and the component molds temporarily arranged side by side are opposed to each other. The amount of deviation between the nodes having the same coordinate value in the second axis direction among the nodes existing on the side to be calculated is calculated, and the smallest one of the calculated amounts of deviation between the nodes is specified as the minimum amount of deviation, Same distance as this minimum deviation and Close to a fixed-position part type
A computer-readable medium that stores a program for moving the temporarily arranged component mold along the first axis in a predetermined direction and determining the position of the component mold after the movement.