JP2006237251A - Pin position determining method and apparatus thereof - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To determine an auxiliary pin setting region on a printed circuit board based on the auxiliary pin setting region calculated based on diameter, interval, and setting width of the auxiliary pins on the printed circuit board and the region calculated, based on position and shape of components on the printed circuit board in the pin position determining method and pin position determining apparatus. <P>SOLUTION: The pin position determining method comprises the steps of acquiring information of interval, setting width, and setting height of pins allocated on the printed circuit board, and diameter of pins as required from a database or acquiring these information pieces inputted, also acquiring position and shape of component allocated on the printed circuit board from the database, determining the pin setting region except for the overlapping region on the printed circuit board calculated based on acquired interval, setting width, setting height of pins and diameter of pin as required or the overlapping region calculated based on the pins allocated in each region and acquired position and shape of components, and outputting the determined pin setting region on the printed circuit board. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a pin position determining method and an automatic pin setting device for determining pins at positions where no components are arranged on a printed circuit board.

  Conventionally, when mounting components on both sides of a printed circuit board, in order to set the auxiliary pins so that they do not overlap with the component positions, a manual copy is made with a transparent sheet such as an OHP film, and the positions of the auxiliary pins are determined through the watermark. Was set.

  As described above, conventionally, since the position of the auxiliary pin for assisting the strength is determined and set when manually mounting the components of the printed circuit board, there is a problem that manual operation is required.

  In order to solve these problems, the present invention sets the auxiliary pin settable area calculated based on the diameter, interval, setting width and height of the auxiliary pin on the printed circuit board, and the position and shape of the components on the printed circuit board. The settable area of the auxiliary pin on the printed circuit board is determined based on the calculated area.

  The invention of the present application includes a settable area for the auxiliary pins calculated based on the diameter, interval, set width and height of the auxiliary pins on the printed circuit board, and an area calculated based on the positions and shapes of the components on the printed circuit board. Based on the above, it is possible to determine the area where the auxiliary pin can be set on the printed circuit board, and to automatically determine the area where the auxiliary pin is set from the design data.

  The present invention provides a setting area of auxiliary pins calculated based on the diameter, interval, setting width and height of the auxiliary pins on the printed circuit board, and an area calculated based on the position and shape of the components of the printed circuit board. Based on the above, it is possible to determine the settable area of the auxiliary pin on the printed circuit board.

FIG. 1 shows a system configuration diagram of the present invention.
In FIG. 1, a system 11 is a computer system that executes various processes according to a program. Here, an information acquisition unit 1, a component information extraction unit 2, a trimming unit 3, an output unit 4, a confirmation determination unit 5, an external storage. The apparatus 6 is composed of the display device 15 and the like.

  The information acquisition means 1 acquires auxiliary pin information (diameter, interval, set height and width, etc.) and printed circuit board and component information (to be described later with reference to FIGS. 2 to 6).

  The component information extraction unit 2 extracts component information to be arranged on the printed circuit board from a database (see FIGS. 2 and 3).

  The trimming means 3 calculates a settable area (recommended setting area) of the auxiliary pin to be arranged on the printed circuit board (to be described later with reference to FIGS. 2 to 6).

  The output unit 4 outputs information on the area where the auxiliary pins can be arranged on the printed circuit board calculated by the trimming unit 3 (see FIG. 4D).

  The confirmation determining means 5 is for determining a region to be arranged from among regions where the auxiliary pins can be arranged on the printed circuit board.

  The external storage device 6 stores tables, information, masters, and the like constituting the database. Here, the component configuration table table 7, the unit information file 8, the coordinate table 9, the component master 10, and the program information file 12 are stored. The auxiliary pin information file 13 and the board information file 14 are stored (see FIG. 3).

  The component configuration table table 7 stores and manages the configuration of components arranged on the printed circuit board (see FIG. 3B).

  The unit information file 8 manages board names and the like in association with unit names (see FIG. 3B).

  The coordinate table 9 manages arrangement coordinates (X, Y), arrangement planes, and the like on the printed board in association with the board name (see FIG. 3B).

  The component master 10 manages the component shape (center coordinates, coordinates of the four vertices when it is rectangular) in association with the component name (see FIG. 3B).

  Here, the program information file 12 manages the “margin” provided outside the part shape of the parts arranged on the printed circuit board ((b) in FIG. 3, (f), (f) in FIG. g)).

  The auxiliary pin information file 13 manages auxiliary pin information (diameter, interval, set height and width, etc.) (see FIGS. 3A and 5).

  The board information file 14 manages board information (coordinate reference, width, height, extraction range width and height, etc.) (see FIG. 3A).

  The display device 15 displays the parts arranged on the printed circuit board, the positions of auxiliary pins, and displays a screen for an operator to input or input.

Next, the operation of the configuration of FIG. 1 will be described in detail according to the order of the flowchart of FIG.
FIG. 2 is a diagram for explaining the operation of the present invention.

FIG. 2A shows a flowchart.
In FIG. 2A, S1 acquires an auxiliary pin setting reference value. this is,
Information is acquired from the auxiliary pin information file 13 (coordinate reference, auxiliary pin diameter, interval, settable width X1, settable height Y1) (auxiliary pin information file 13 in FIG. 3A, FIG. 4). (B), see FIG.

    Obtain information (coordinate reference, substrate width X, substrate height Y, extraction width X2, extraction height Y2) from the substrate information file 14 (substrate information file 14 in FIG. 3A, FIG. 4A), (See FIG. 6).

Next, the settable area of the auxiliary pin is acquired. This is because the settable area determined by the settable width X1 and the settable height Y1 of the auxiliary pin is compared with the extracted area determined by the extracted width X2 and the extracted height Y2 on the printed circuit board. Set (determine) as For example: For width (X direction):
If the board information extraction width X2> the auxiliary pin settable width X1, X1
If the board information extraction width X2 <the auxiliary pin settable width X1, X2
・ About high (Y direction):
If the board information extraction height Y2> auxiliary pin settable height Y1, Y1
If the board information extraction height Y2 <the auxiliary pin settable height Y1, Y2
And set each. Within this set reference setting possible area, auxiliary pins are set repeatedly at intervals of auxiliary pins (intervals in the X and Y directions), and an auxiliary pin setting reference position is set, for example, as shown in FIG.

  With reference to the auxiliary pin information file 13 and the board information file 14 in FIG. 3A, the areas (X2, Y2) on which the auxiliary pins may be set on the printed circuit board and whether or not the auxiliary pins can be set are as described above. Reflecting both the regions (X1, Y1) to be extracted, it is possible to automatically set a reference settable region where an auxiliary pin can be set (see FIG. 4B).

In S2, the component information of the specified surface is extracted. This is for the specified surface (front surface or back surface) on the printed circuit board, here, as shown in FIG. 3B, the unit name and the layout surface are specified, the component configuration table 7 and the unit information file. 8. From the coordinate table 9 and the parts master 10,
-Acquire the unit name, reference symbol, reference number, part name, part shape, arrangement X coordinate, arrangement Y coordinate. For example, as shown by the solid line in FIG.
-Traced as indicated by the solid line from the unit name, reference symbol, reference number, and part name in the parts configuration table 7, as described on the left side,
・ Unit name ・ Reference symbol ・ Reference number ・ Part name ・ Part shape (X0α, X1α, Y0α, Y1α)
・ Arrangement X coordinate (X00)
-Placement Y coordinate (Y00)
Get each. The shape of these acquired parts is schematically shown as (b) in FIG. That is, the center coordinates of the parts are (arrangement X coordinate, arrangement Y coordinate) = (X00, Y00)
The four coordinates of the vertex are (X0, Y0), (X0, Y1), (X1, Y1), (X1, Y0)
It becomes.

  As described above, with respect to the components arranged on the printed circuit board, it is possible to repeat the arrangement of the components as shown in FIG. 2B for all the components and arrange all the components on the printed circuit board. Become.

In S3, the auxiliary pin set value is trimmed. This obtains the “margin width” (α) from the program information file 12 and reflects the margin width in the information on the shape of the part calculated in S2 ((b) of FIG. 2).
The center coordinates are (arrangement X coordinate, arrangement Y coordinate) = (X00, Y00)
The four coordinates of the vertex are (X0α, Y0α), (X0α, Y1α), (X1α, Y1α)
Here, X0α = X0-1 (mm), Y0α = Y0-1 (mm)
X1α = X1 + 1 (mm), Y1α = Y1 + 1 (mm)
As shown in FIG.

  With the above S3, the shape of the part reflecting the “margin width” specified for each part can be obtained.

  In S4, the recommended auxiliary pin setting value is output. This is because the area of the shape of the component on the printed circuit board after reflecting the margin width in S3 (the area after the margin width is reflected in the shape of the component in FIG. 4A) and the auxiliary pin set in S1 The mask surface and the area on the printed circuit board to be set are overlaid ((c) in FIG. 4), and only the area set by the auxiliary pin not including the component area is extracted ((d) in FIG. 4). This is output as a recommended setting value for the auxiliary pin.

  In S5, the recommended position is determined. This is because, for example, in the recommended area where auxiliary pins can be set on the printed circuit board shown in FIG. 4D output in S4, the area where the auxiliary pins are actually set is determined, for example, the printed circuit board is approximately uniform by a person. Select and confirm from the screen that the desired number of auxiliary pins are arranged on the screen (or automatically so that the designated number of auxiliary pins are arranged on the printed circuit board as uniformly as possible by the program. Determine).

  As described above, the diameter, interval, settable width and height of the auxiliary pins, and the extraction area of the auxiliary pins to be placed on the printed circuit board are acquired, and the shape of the parts to be placed on the printed circuit board, and the “margin width” are reflected. Thus, an area where the auxiliary pin can be set can be automatically calculated and presented as a candidate. This will be described in detail below.

  FIG. 2B shows an explanatory diagram of S2 in FIG. This shows an expression example of the shape of a component arranged on a printed circuit board. Here, the center coordinates (X00, Y00) of the component and the coordinates of the four vertices when represented by rectangles are represented as shown in the figure.

  FIG. 2C shows an explanatory diagram of S3 in FIG. This is a representation of the shape of the component when a “gap width” (here, 1 mm) is provided on the outer periphery of the shape of the component in FIG.

FIG. 3 shows a data explanatory diagram of the present invention.
FIG. 3A is a diagram illustrating acquisition of auxiliary pin setting reference values. This shows a state in which the setting reference value of the auxiliary pin described in S1 of FIG. 2A described above is obtained from the auxiliary pin information file 13 and the board information file 14 shown in the figure and is calculated (details). (See the description of S1 in FIG. 2A).

  (B) of FIG. 3 shows the figure explaining the component information extraction of the designated surface. This shows an example of extraction of the component information acquired in S22 of FIG. 2A described above (for details, see the description of S2 of FIG. 2A). The program information file 12 stores the above-described “margin width” (for example, 1 mm), and obtains the margin = 1 mm in FIG.

FIG. 4 is an explanatory diagram of the present invention.
FIG. 4A shows an example of an actual printed circuit board. This is obtained by displaying the shape information of the components arranged on the printed circuit board.

  FIG. 4B shows an example of the auxiliary pin setting reference position. This was automatically generated on the basis of the auxiliary pin information (pin diameter, interval, set width and height) and the extraction area on the printed circuit board in S1 of FIG. The example of the area | region which can set an auxiliary pin on a printed circuit board is shown.

  FIG. 4C shows an example of a drawing in which mask diagrams of parts are superimposed. This is because the shape of the component arranged on the printed circuit board in FIG. 4A and the auxiliary pin setting reference position in FIG. This shows the state of the non-placeable area.

  FIG. 4D shows an example of recommended auxiliary pin setting positions. This shows an example of the auxiliary pin setting guess position where the auxiliary pin can be set by deleting the area including the shape of the black part in FIG.

FIG. 4 (e) shows an enlarged view of the upper rectangular portion of FIG. 4 (c).
FIG. 4F shows a state in which the region (auxiliary pin setting region) surrounded by the upper rectangle in FIG. 4E is further enlarged. In the state of FIG. 4F, the auxiliary pin diameter (diameter 2 mm) is not overlapped with the area of the actual part below and the margin width = 2 mm added to the outer periphery. An example in which it is determined that a pin can be set is shown.

  FIG. 4G shows a further enlarged view of the area (auxiliary pin setting area) surrounded by the lower rectangle of FIG. 4E. In the state of FIG. 4G, the auxiliary pin diameter (diameter 2 mm) is overlapped with the area where the margin width = 2 mm is added to the outer periphery in the shape of the actual part below. An example in which a pin is determined not to be set is shown.

  As shown in FIGS. 4 (f) and 4 (g), when the auxiliary pin does not overlap with the actual shape of the part plus the “extra width” (2 mm in the figure) on the outer periphery, the auxiliary pin ( It is possible to determine that the rectangular area of the auxiliary pin) can be set to the illustrated position (auxiliary pin setting reference position).

FIG. 5 shows an example pin of the present invention. The pin shown is
・ Auxiliary pin diameter = 2mm
・ Auxiliary pin spacing = 6mm
・ Auxiliary pin settable width X1 = 70mm
・ Auxiliary pin settable height Y1 = 50mm
An example of In the horizontal direction, the auxiliary pin interval is 6 mm and the auxiliary pin diameter is 2 mm. Therefore, the auxiliary pins are repeatedly arranged 8 times at 70 / 8≈8.7. Similarly, in the vertical direction, 5 times. Auxiliary pins are arranged repeatedly.

  The auxiliary pin setting reference position may be arranged at the center of each divided area as shown in FIG. 5 or any one of the divided areas as shown in FIG. May be placed at the apex.

  The determination of whether or not the auxiliary pin overlaps the shape of the part (and the shape after adding the margin width to the outer periphery) is described with reference to FIGS. 4E, 4F, and 4G. As described above, it is determined that the auxiliary pin placed at any vertex (or center) of each divided area can be placed at the position of the auxiliary pin in the area when the shape of the part does not overlap. Therefore, when the divided areas do not overlap with the shape of the part, it may be determined that the auxiliary pin can be arranged at the center position of the area.

FIG. 6 shows an example of a printed circuit board according to the present invention. Printed circuit board information is as follows: ・ Coordinate standard ・ Board width X
・ Board height Y
・ Extraction width X2
・ Extraction height Y2
(See FIGS. 2 and 3).

  The present invention was calculated based on the area where the auxiliary pins can be set on the printed circuit board based on the diameter, interval, set width and height of the auxiliary pins, and the position and shape of the components on the printed circuit board. It is possible to determine an area where the auxiliary pin can be set on the printed circuit board based on the area, and to automatically determine the area where the auxiliary pin is set from the design data.

It is a system configuration diagram of the present invention. It is operation | movement explanatory drawing of this invention. It is data explanatory drawing of this invention. It is explanatory drawing of this invention. It is an example of the pin of this invention. It is an example of the printed circuit board of this invention.

Explanation of symbols

1: Information acquisition unit 2: Component information extraction unit 3: Trimming unit 4: Output unit 5: Confirmation determination unit 6: External storage device 7: Component configuration table table 8: Unit information file 9: Coordinate table 10: Component master 11: System 12: Program information file 13: Auxiliary pin information file 14: Board information file 15: Display device

Claims (5)

In a pin position determination method for determining a pin at a position where no component is arranged on a printed circuit board,
The step of taking the information of the interval of the pins to be arranged on the printed circuit board, the setting width and the setting height, the diameter of the pin if necessary from the database, or the input,
Capturing the position and shape of a component to be placed on the printed circuit board from a database;
On the printed circuit board, the pins arranged in each area or each area on the printed circuit board based on the interval of the captured pins, the set width and the set height, and the diameter of the pins as required, and the captured parts Determining a pin settable area excluding an area overlapping with an area calculated based on the position and shape of
Outputting a settable area of the pin on the determined printed circuit board.   A step for reading out information on an area where pins can be arranged on the printed circuit board from a database or taking in inputted information is provided, based on the settable area of the pins, and the set width and set height of the read pins. 2. The pin position determining method according to claim 1, wherein the calculated pin arrangement possible area is compared, and a narrow area of the two is determined as the pin settable area.   3. The pin position determination method according to claim 1, wherein the region of the component on the printed circuit board determined by the position and shape of the read component is a region in which a designated margin is added to the outer periphery. .   The pin position determination method according to any one of claims 1 to 3, wherein the data of the shape of the part is a coordinate of four vertices expressed by a center position coordinate of the part and a rectangle. In a pin position determination device that determines pins at positions where no components are arranged on a printed circuit board,
Means for fetching information about the interval between the pins to be arranged on the printed circuit board, a set width and a set height, and, if necessary, the diameter of the pin from a database;
Means for fetching from the database the position and shape of the components to be placed on the printed circuit board;
On the printed circuit board, the pins arranged in each area or each area on the printed circuit board based on the interval of the captured pins, the set width and the set height, and the diameter of the pins as required, and the captured parts Means for determining a pin settable area excluding an area overlapping with an area calculated based on the position and shape of
Means for outputting a settable region of the pins on the determined printed circuit board.

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