JP3369814B2 - Component symbol information creation device and CAD system using the same - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention uses a part symbol information creating device for creating part symbol information used in a CAD system for designing a printed circuit board, and part symbol information created by the part symbol information creating device. The present invention relates to a CAD system for designing a printed circuit board.

[0002]

2. Description of the Related Art CAD data created in a CAD system for designing a printed circuit board includes board outline information indicating the shape and dimensions of the board, a wiring pattern, and a pattern indicating the shape and dimensions of a cutback hole of this wiring pattern and the position on the board. It is configured by information, component symbol information regarding mounted components, and the like.

Conventionally, the above-mentioned component symbol information is data indicating the shape and size of a component to be mounted and the position on the board, the shape and dimensions of the component mounting holes and lands for mounting the component, and the position on the board. Among them, data such as the shape and size of the part, the part mounting holes for mounting the part, the shape and size of the land, etc. are registered in advance in the library and the like. By reading the component symbol information of the component to be mounted on the board from the library and arranging the read component symbol information at the component mounting position of the board outline information that is the information of the bare board, CAD data is created to design the printed circuit board. Was going on.

In designing a printed circuit board using such a CAD system, a designer considers various restrictions and prohibitions based on the circuit diagram and various restrictions and prohibitions in the manufacturing process.

[0005]

However, the above-mentioned C
In printed circuit board design using the AD system, the designer can confirm whether or not various restrictions and prohibitions based on the circuit diagram are touched by reviewing the circuit diagram. Whether or not the restrictions and prohibitions are touched is very difficult to confirm because there is no visual information about them, so when actually manufacturing a printed circuit board designed, it is possible to insert parts automatically. Occasionally, the insertion guide of the machine may come into contact with an already inserted part, which may cause a problem.

The present invention solves such a conventional problem, and a component symbol information creating apparatus for providing component symbol information capable of easily confirming a constraint prohibition item in the manufacturing process, and a constraint in the manufacturing process. It is an object of the present invention to provide a CAD system capable of designing a printed circuit board while easily checking prohibited items.

[0007]

In order to achieve the above-mentioned object, the component symbol information generating apparatus according to claim 1 of the present invention is a component symbol dimension, a component provided on a substrate for mounting this component. Data input means for inputting the positions and shape dimensions of the mounting holes and lands, as well as the position and shape dimensions of the area corresponding to the restrictions and prohibitions in the process of mounting this component on the board,
Based on the data input from the data input means,
Part outline, part mounting hole and land area, alignment
Wherein a part symbol information creating means for creating constraints and component symbol information consisting of restriction prohibition region showing the relevant area to prohibitions, storage means for storing the part symbol information created by the component symbol information creation means, Operation means for inputting an output command for outputting the component symbol information stored in the storage means, and component symbol information is read from the storage means according to the output instruction input from the operation means, and the component symbol information is output. And an output means for performing the same.

According to a second aspect of the present invention, there is provided a component symbol information producing apparatus, wherein the component symbol information producing apparatus according to the first aspect causes the component symbol information output from the output means to be displayed as an image. It is characterized in that display means for displaying the component symbol information by the display control means is added.

[0009] Component symbol information creation device according to claim 3 of the present invention, limitations prohibited regions included in the component symbol information in the component symbol information creating device according to claim 1 or claim 2 wherein is used in the component mounting process that it is characterized in the insertion guide component automatic insertion machine shows the area to be inserted, part symbol information generating apparatus according to claim 4 of the present invention, the component symbol information
Constraints prohibited regions included is characterized in that illustrates the part of the lead clinch shape in a state of being inserted into the substrate in the component mounting process.

Further part symbol information generating apparatus according to claim 5 of the present invention, which constraints prohibited area included in the component symbol information, and wherein the shows the placement prohibited area of the component mounting holes Yes, claim 6 of the present invention
Part symbol information generating apparatus according, the component symbol
Constraints prohibited area included in the information is characterized in that is an indication that the part is non-insulated parts.

Next, in a CAD system according to a seventh aspect of the present invention, the shape and size of a part, the position and shape and size of a part mounting hole and a land provided on a board for mounting this part are input, and Based on the data input from the component data input means for inputting the position and shape dimension of the area corresponding to the restrictions and prohibitions in the process of mounting the component on the board, and the external shape of the component, parts mounting holes and the land area, as well as a part symbol information creation means for creating a component symbol information consisting of restriction prohibition region indicating a region corresponding to the limitations and prohibitions, component symbols created by the component symbol information creating means Storage means for storing information and board outline display command by inputting board shape and dimensions Operation for inputting the pattern placement command by designating the component placement command by specifying the mounting position on the board, the wiring pattern, and the placement position of the cut-out hole of this wiring pattern on the board, and inputting the geometric dimensions And the board outline information indicating the board outline according to the board outline display command, the board outline information is displayed as an image, and the part symbol information is read from the storage means according to the part placement command. Is placed at a specified mounting position on the board outline information, and pattern information indicating a wiring pattern and an area of a cut-back hole of the wiring pattern is created according to the pattern placement command, and the pattern information is printed on the board outline information. Board outline information, component symbol information, and And CAD information including pattern information, CAD data creating means for displaying the CAD data as an image, and display means for displaying the board outline information or the CAD data by the CAD data creating means as an image. To do.

[0012] CAD system according to claim 8 of the present invention, parts thin in CAD system according to claim 7, wherein
Constraints forbidden areas included in Bol information, which is characterized in that the insertion guide component automatic insertion machine to be used in the component mounting process is one that indicates an area to be inserted,
CAD system according to claim 9 of the present invention, the component sheet
Constraints forbidden areas included in the symbol information is characterized in that illustrates the part of the lead clinch shape in a state of being inserted into the substrate in the component mounting process.

According to a tenth aspect of the present invention, in the CAD system, a constraint-prohibited area included in the part symbol information is included.
But which is characterized in that shows the placement prohibited area of the component mounting holes, CAD system according to claim 11 of the present invention, system <br/> about prohibited area included in the component symbol information but it is characterized in that an indication that the part is non-insulated parts.

Therefore, according to the component symbol information creating apparatus of the present invention, the shape and dimension of the component, the position and the shape and dimension of the component mounting hole and the land provided on the board for mounting this component are input from the data input means. When the position and shape dimensions of the area corresponding to the restrictions and prohibitions in the process of mounting this component on the board are input, the component symbol information creation means makes the component outline and component attachment based on the input data. Create part symbol information consisting of hole and land areas, and restriction prohibited areas that indicate areas corresponding to the restrictions and prohibitions,
The component symbol information is stored in the storage means, and when the output instruction of the component symbol information is input from the operating means, the output means reads the component symbol information from the storage means,
By outputting this component symbol information, it is possible to provide component symbol information that allows easy confirmation of restrictions or prohibitions in the manufacturing process.

Further, according to the CAD system of the present invention, the shape and size of the part from the part data input means, the position and shape and size of the part mounting hole and land provided on the board for mounting the part, and the part When the position and the shape dimension of the area corresponding to the restrictions and prohibitions in the mounting process are input, the external shape of the component, the area of the component mounting hole and the land by the component symbol information creating means based on the input data, And component symbol information including a constraint prohibition region indicating a region corresponding to the above-mentioned restrictions and prohibition items is created, the created component symbol information is stored in the storage unit, and the CAD data creation unit causes the board external shape display command from the operation unit. When is input, board outline information indicating the board outline is created, and this board outline information is displayed on the display means. When it is displayed and a component placement command is input from the operating means, the component symbol information is read from the storage means, the component symbol information is placed at a specified mounting position on the board outline information, and the pattern placement is performed from the operating means. When a command is input, pattern information indicating a wiring pattern and a region of a cut-back hole of the wiring pattern is created, and the pattern information is arranged at a specified position on the board contour information. By creating CAD data composed of component symbol information and pattern information and displaying the CAD data as an image on the display means, it is possible to easily design the printed circuit board while confirming the restrictions and prohibitions in the manufacturing process.

[0016]

1 is a block diagram showing the configuration of an embodiment of a CAD system of the present invention.

In FIG. 1, reference numeral 1 denotes a CPU which creates and registers component symbol information, creates board outline information and pattern information, and creates CAD data including the board outline information, part symbol information, and pattern information. Is.

Reference numeral 2 is a component symbol information master file for registering the component symbol information created by the CPU 1, and 3 is a CAD data file for storing CAD data created by the CPU 1.

Reference numeral 4 denotes component symbol information in the CPU 1,
It is a keyboard for inputting various data and commands for creating board outline information, component symbol information, pattern information, and CAD data.

Reference numeral 5 denotes a display for displaying the board outline information and CAD data created by the CPU 1.

The CPU 1 corresponds to a part symbol information creating means and a CAD data creating means, and the part symbol information master file 2 corresponds to a storing means.

The keyboard 4 corresponds to component data input means and operation means, and the display 5 corresponds to display means.

Next, the operation of the embodiment of the CAD system of the present invention having the above configuration will be described.

First, prior to the design of the printed circuit board, the component symbol information of various components to be mounted is registered in the component symbol information master file 2.

The shape and size of the part for creating the part symbol information from the keyboard 4, the position and shape and size of the part mounting holes and lands provided on the board for mounting this part, and this part is mounted on the board. When the data such as the position and the shape dimension of the region corresponding to the restrictions and prohibitions in the process are input, the CPU 1 based on the input data, the outer shape of the component, the region of the component mounting hole and the land, and the constraint. The component symbol information including the constraint prohibition region indicating the region corresponding to the prohibited matter is created, and the component symbol information is stored in the component symbol information master file 2.

Next, in the design work, when the designer inputs a board outline display command by inputting the board shape dimension of the printed board to be designed from the keyboard 4, the CPU 1 uses the input board shape dimension data as input. Based on this, board outline information indicating the outline of the board is created, and this board outline information is displayed on the display 5 as an image.

When the designer decides the mounting position of the component while looking at the screen on which the board outline of the display 5 is displayed and inputs a component placement command by designating the type and mounting position of the component from the keyboard 4, the CPU 1 Reads the component symbol information of the designated component from the component symbol information master file 2, arranges this component symbol information at the designated mounting position on the above board outline information, and places the component symbol at this designated mounting position. The board outer shape information in which the information is arranged, that is, CAD data in the middle of design is displayed on the display 5.

Subsequently, the designer looks at the screen on which the CAD data in the middle of designing the display 5 is displayed, that is, the board outline, and while viewing the screen on which the component symbol information is displayed at the designated position on the board outline. When a pattern placement command is input from the keyboard 4 by designating the wiring pattern and the placement positions of the wiring pattern cut-out holes on the substrate and inputting the geometrical dimensions, the CPU 1 determines the wiring pattern and the wiring pattern based on the entered data. Pattern information indicating the area of the cut-back hole of this wiring pattern is created, this pattern information is arranged at a specified position on the CAD data in the middle of design, and the CAD data in the middle of design in which this pattern information is arranged is set. An image is displayed on the display 5.

The designer completes the CAD data of the printed circuit board, which is composed of the board outline information, the part symbol information, and the pattern information, by repeating the above part placement command and pattern placement command in this way.

The completed CAD data and the unfinished CAD data are stored in the CAD data file 3 as required.
Can be stored in.

FIG. 2 shows a display example of the CAD data created in the above embodiment, and FIG. 3 is an enlarged view of the lower left portion of FIG.

In FIGS. 2 and 3, reference numeral 6 is board outline information, 7 is component outline information, 8 is component mounting via information,
Reference numeral 9 indicates insertion guide information, and 10 indicates pattern information.

The component shape information 7, parts mounting via information 8 and insertion guide information 9, is intended to constitute a part symbol information.

The insertion guide information 9 indicates an area into which the insertion guide of the automatic component insertion machine is inserted in the component mounting process. The shape and dimensions of the insertion guide are investigated, and this data is used as the component symbol information. It is created as one of the component symbol information by inputting it at this time, and is displayed by using this component symbol information.

The component outline information 7 indicates the shape of the component to be mounted, and the component mounting via information 8 is information on the via formed on the board for mounting the component, such as component mounting hole information, land information, It is composed of resist removal information and the like.

Conventionally, since the insertion guide information 9 is not displayed on the screen, there is a risk of arranging the component in a region that comes into contact with the insertion guide in the component mounting process.

Even if you notice this danger,
At the design stage, it is not easy to confirm whether or not the parts placed on the insertion guides come into contact with each other.In the worst case, the insertion guide may come into contact with the inserted parts during the parts mounting process, causing a failure such as parts insertion failure There is a risk of causing a situation such as redesign of the printed circuit board or an increase in the number of work steps in the component mounting process.

However, by displaying the insertion guide information 9, the designer can easily confirm the area of the insertion guide of the automatic component insertion machine, and design so that the component outline information 7 and the insertion guide information 9 do not overlap. By doing so, it is possible to easily prevent the above-mentioned obstacles such as impossibility of component insertion at the design stage.

4 to 8 show display examples of the component symbol information in the CAD data created in the above embodiment.

FIG. 4 is a display example of component symbol information having insertion guide information.

In FIG. 4, reference numeral 7 indicates component outline information, 8 indicates component mounting via information, and 9 indicates insertion guide information.

FIG. 5 is a display example of component symbol information having lead clinch shape information.

In FIG. 5, reference numeral 7 is the component outline information, 8 is the component mounting via information, and 12 is the lead clinch shape information.

The lead clinch shape information 12 indicates the clinch shape of the lead terminal of the component mounted on the board by the component automatic inserting machine in the component mounting process.

By displaying the lead clinch shape information 12, the designer can easily confirm the presence or absence of contact between the lead terminals of each component after mounting, and the occurrence of defects due to the contact between the lead terminals. Can be prevented.

FIG. 6 is a display example of component symbol information having via prohibition information.

In FIG. 6, reference numeral 7 indicates component outline information, 8 indicates component mounting via information, and 13 indicates via prohibition information.

The via-prohibition information 13 indicates that pattern cutting vias having a hole diameter close to the hole diameter of the component mounting via 8 are arranged on the same line as the component mounting via 8 at the same pitch position. Since an erroneous insertion may occur when a component is manually inserted, in order to prevent the erroneous insertion, the area for prohibiting the arrangement of the pattern cutting vias and the like is shown.

By displaying the via-prohibition information 13, it is possible to prevent the designer from erroneously arranging the pattern cutting back via or the like in the via-arrangement prohibited area.

FIG. 7 is a display example of component symbol information having non-insulated component information.

In FIG. 7, reference numeral 7 is the component outline information, 8 is the component mounting via information, and 14 is the non-insulated component information.

The non-insulated component information 14 indicates that the component indicated by the component outline information 7 is a non-insulated component.

By displaying the non-insulated component information 14, it is possible to prevent the designer from erroneously arranging the wiring pattern or the via under the non-insulated component.

FIG. 8 is a display example of component symbol information having insertion guide information, lead clinch shape information, and via prohibition information.

In FIG. 8, reference numeral 7 is component outer shape information, 8 is component mounting via information, 9 is insertion guide information, 12 is lead clinch shape information, and 13 is via prohibition information.

As described above, according to the present embodiment, the shape and size of the component from the keyboard 4, the position and shape and size of the component mounting holes and lands provided on the substrate for mounting this component, and this component are mounted on the substrate. When the position and shape dimension of the area corresponding to the restrictions and prohibitions in the process to be performed are input, the CPU 1 based on the input data, the outer shape of the component, the area of the component mounting hole and the land, and the constraint and prohibition. When the component symbol information including the constraint prohibition region indicating the region corresponding to the matter is created, the created component symbol information is stored in the component symbol information master file 2, and the board contour display command is input from the keyboard 4, the board contour is displayed. Board outline information showing
When this board outline information is displayed on the display 5 and a component placement command is input from the keyboard 4, the component symbol information is read from the component symbol information master file 2 and this component symbol information is designated on the substrate outline information. When the wiring pattern is placed at the mounting position and a pattern layout command is input from the keyboard 4, pattern information indicating the wiring pattern and the cut-back hole area of this wiring pattern is created, and this pattern information is designated on the board outline information. The CAD data including the board outline information, the component symbol information, and the pattern information is created by arranging them at different positions, and by displaying the CAD data on the display 5, it is possible to easily confirm the constraint prohibition items in the manufacturing process. While designing a printed circuit board.

[0057]

As described above, according to the component symbol information creating apparatus of the present invention, the shape and size of the component from the data input means, the component mounting hole and the land provided on the substrate for mounting this component, When the position and shape and dimensions are input, and the position and shape and dimensions of the area corresponding to the restrictions and prohibitions in the process of mounting this component on the board are input, the component symbol information creation means uses the input data , part geometry, component mounting holes and the land area, as well as to create a component symbol information consisting of restriction prohibition region indicating a region corresponding to the limitations and prohibitions, stores the component symbol information in the storage means, operating means When the output command of the component symbol information is input from the, the output means reads the component symbol information from the storage means, By outputting the component symbol information of, it is possible to provide the component symbol information that can easily confirm the constraint prohibition items in the manufacturing process. Therefore, if a printed circuit board is designed using this component symbol information, This has the effect of preventing obstacles that occur in the manufacturing process.

Further, according to the CAD system of the present invention, the shape and size of the part are input from the part data inputting means, the positions and shapes and sizes of the part mounting holes and lands provided on the board for mounting the part, and the part are mounted on the board. When the position and shape and dimension of the area corresponding to the restrictions and prohibitions in the process of mounting are input, the external shape of the component, the area of the component mounting hole and the land by the component symbol information creating means based on the input data, In addition, component symbol information including a constraint prohibition region indicating a region corresponding to the constraint and prohibition items is created, the created component symbol information is stored in the storage unit, and the CAD data creation unit causes the board external shape display command from the operation unit. When is input, board outline information indicating the board outline is created, and this board outline information is displayed on the display means. When it is displayed and a component placement command is input from the operating means, component symbol information is read from the storage means, and this component symbol information is placed at a specified mounting position on the board outline information to create CAD data. By displaying the CAD data on the display unit as an image, it is possible to design the printed circuit board while easily confirming the restriction prohibition items in the manufacturing process, and thus it is possible to prevent an obstacle occurring in the manufacturing process. Have.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of an embodiment of a CAD system of the present invention.

FIG. 2 is a diagram showing a display example of CAD data created in the embodiment of the CAD system of the present invention.

FIG. 3 is an enlarged view of a lower left portion of FIG.

FIG. 4 is a diagram showing a display example of component symbol information in CAD data created in the embodiment of the CAD system of the present invention, which is a display example of component symbol information having insertion guide information.

FIG. 5 is a diagram showing a display example of component symbol information in CAD data created in the embodiment of the CAD system of the present invention, which is a display example of component symbol information having lead clinch shape information.

FIG. 6 is a diagram showing a display example of component symbol information in CAD data created in the embodiment of the CAD system of the present invention, which is a display example of component symbol information having via prohibition information.

FIG. 7 is a diagram showing a display example of component symbol information in CAD data created in the embodiment of the CAD system of the present invention, which is a display example of component symbol information having non-insulated component information.

FIG. 8 is a diagram showing a display example of part symbol information in CAD data created in the embodiment of the CAD system of the present invention, in which part symbol information including insertion guide information, lead clinch shape information, and via prohibition information. It is a display example.

[Explanation of symbols]

1 CPU 2 Parts symbol information master file 3 CAD data file 4 keyboard 5 display

─────────────────────────────────────────────────── --Continued from the front page (56) References JP-A-7-44591 (JP, A) JP-A-5-46701 (JP, A) JP-A-2-219179 (JP, A) (58) Field (Int.Cl. ⁷ , DB name) G06F 17/50 658 G06F 17/50 652

Claims (11)

(57) [Claims] 1. A shape and size of a part, a position and a shape and size of a part mounting hole and a land provided on a board for mounting the part are inputted, and restrictions and prohibitions in a process of mounting the part on the board. Based on the data input by the data input means for inputting the position and the geometrical dimension of the area corresponding to, and the data input means,
Part outline, part mounting hole and land area, alignment
Wherein a part symbol information creating means for creating constraints and component symbol information consisting of restriction prohibition region showing the relevant area to prohibitions, storage means for storing the part symbol information created by the component symbol information creation means, Operation means for inputting an output command for outputting the component symbol information stored in the storage means, and reading the component symbol information from the storage means in accordance with the output instruction input from the operating means, and outputting this component symbol information And a means for outputting the component symbol information. 2. A display control means for displaying an image of the component symbol information output from the output means, and a display means for displaying an image of the component symbol information by the display control means. The described component symbol information creation device. 3. A constraint prohibited regions included in the component symbol information claim insertion guide parts automatic insertion machine to be used in the component mounting process is characterized in that indicating an area to be inserted 1 or The component symbol information creation device according to claim 2. 4. A restriction prohibition area included in the component symbol information, according to claim 1 or claim, characterized in that shows the component leads clinch shape in a state of being inserted into the substrate in the component mounting process 2. The component symbol information creation device described in 2. 5. The component symbol information creating apparatus according to claim 1, wherein the constraint prohibition region included in the component symbol information indicates a component attachment hole placement prohibition region. 6. The component symbol information creating apparatus according to claim 1, wherein the constraint prohibition region included in the component symbol information indicates that the component is a non-insulated component. . 7. The shape and size of the component, the position and shape and size of the component mounting hole and land provided on the board for mounting the component, and restrictions and prohibitions in the process of mounting the component on the board. Part data input means for inputting the position and shape and dimension of the area corresponding to, based on the data input by the part data input means, the outer shape of the part, the part mounting hole and land area,
And component symbol information creating means for creating component symbol information composed of a constraint prohibition area indicating an area corresponding to the constraint and prohibition item, and a storage means for storing the component symbol information created by the component symbol information creating means, The board outline display command by inputting the board shape dimension, the component placement command by designating the mounting position of the component on the board, the wiring pattern and the placement position of the cut-back hole of this wiring pattern on the board, and the shape Operation means for inputting a pattern placement command by inputting dimensions, and creating board outline information indicating the outline of the board according to the board outline display command, displaying the board outline information as an image, and executing the component placement command. The component symbol information is read from the storage means in accordance with The pattern information indicating the area of the wiring pattern and the cut-back hole of this wiring pattern is created in accordance with the pattern placement command, and the pattern information is specified on the board outline information. The CAD data including the board outline information, the part symbol information, and the pattern information is created by arranging the CAD data at different positions, and the CAD data is displayed as an image.
Data creating means, and board outline information or C by the CAD data creating means
A CAD system comprising: a display unit for displaying AD data as an image. 8. constraint prohibited regions included in the component symbol information, according to claim 7, wherein the insertion guide parts automatic insertion machine to be used in the component mounting process is characterized in that indicating the region to be inserted CAD system. Constraints prohibited regions included in wherein said component symbol information, according to claim 7, characterized in that indicating the component leads clinch shape in a state of being inserted into the substrate in the component mounting process CAD system. Wherein said component constraint prohibited area included in the symbol information, CAD system according to claim 7, wherein a shows the placement prohibited area of the component mounting holes. 11. The CAD system according to claim 7, wherein the restriction prohibited area included in the part symbol information indicates that the part is a non-insulated part.