JPH0635518A - Production of nc data for split substrate assembly - Google Patents

Abstract

PURPOSE:To automatically produce in an off-line method the NC data necessary for the assembly of a split substrate consisting of plural substrates designed individually based on the CAD output data and regardless of the type of the substrate by applying newly the split substrate constitution data and performing a synthesis processing based on the constitution data. CONSTITUTION:The position coordinates of the original points 1 and 2 of the substrates A and B which are set based on the original point 3 of a split substrate C are registered into a split substrate constitution data file 14 for each of both substrates A and B as an original point correction offset 14c. In regard of the rotary substrate B, the rotational angle theta14d is registered in the file 14. Then the mounting position coordinates (X1, Y1) and (X2, Y2) of the parts 4a and 4b of the coordinate systems of both substrates A and B are transformed into the mounting coordinates (X1', Y1') and (X2', Y2') of the coordinate system of the substrate C in response to the offset 14c and the angle 14d respectively. Thus the design information can be automatically evolved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for creating NC data for assembling a split board, and more particularly to a method for creating NC data required in a split board manufacturing process off-line.

[0002]

2. Description of the Related Art A method for creating NC data required for an electronic circuit printed circuit board assembling process off-line has been well known.

An example of automation of this off-line NC data creation work based on CAD (design) information is disclosed in Japanese Patent Laid-Open No. 61-74399.
A program (operating position data and operation instruction command) for operating the assembly robot is automatically created based on design information and the like.

[0004]

By the way, conventionally, in order to efficiently assemble a plurality of printed circuit boards, these are
It is common practice to handle the board as a single board and separate all the components on the single board after the completion of mounting. Such a printed board is generally called a split board. Regarding NC data creation for such a split board,
The above conventional method has the following problems.

In CAD, it is difficult to directly use these plurality of CAD data for NC data creation because each CAD board is designed for each board.
Moreover, although the optimum mounting order (path) for each board can be calculated from the CAD data for each individual board, this does not always match the optimum mounting order when assembled as one split board. Therefore, N is set in the mounting order determined offline.
When the C data is created, the mounting tact time may be longer than when the data is created online (direct teach).

Further, there are some mounting machines and the like in which the NC data cannot be created unless the coordinate data of the parts are expanded in advance over the entire split board.

An object of the present invention is to automatically create NC data necessary for assembling a split board composed of a plurality of individually designed boards offline based on CAD output data regardless of the number and the number of boards. It is to provide an NC data generating method for assembling a split board.

[0008]

In order to achieve the above object, the present invention provides NC data for assembling a split board having a plurality of boards of the same kind and different types as constituent elements, CAD data for each of the plurality of boards. (Design) A method of creating using the data, wherein a step of setting an origin correction offset representing which point on the coordinate system of the split board the origin of each of the plurality of boards is located, The step of determining the rotation angle of the board on the split board, and the mounting position coordinates of each component in each coordinate system of the plurality of boards, the coordinates of the split board according to the origin correction offset and the rotation angle. And a step of converting the coordinates into a mounting position coordinate on the system.

[0009]

[Operation] All the board configuration data corresponding to the file name registered in the split board configuration data is fetched, and the component placement according to the origin correction offset value and the rotation angle of each board for all the components on the split board Performs position coordinate conversion processing / angle conversion processing. Further, the drawing model number, the mounting surface, the symbol, the component arrangement position coordinates and the angle after conversion of each component are output to the component development list according to a fixed output format. At that time, preferably, by comparing the component arrangement position coordinates after the coordinate conversion processing with the end face coordinates obtained from the divided board external size registered in the divided board configuration data, whether the position of the component is correctly on the divided board or not. Check to prevent the creation of the split board component expansion list for the wrong combination.

According to the present invention, it is possible to automatically combine the respective design data of the individually designed split boards into one board regardless of the number and the number of the boards to be constructed.
Further, it is possible to deal with a conventional single substrate in the same manner by treating it as one split substrate.
In this way, by enabling the development of any board into a single board at the time of assembly, the optimum mounting order for assembling the split board most efficiently is obtained, and the optimum NC data for each facility is obtained. Can be created automatically.

[0011]

EXAMPLE An example of an NC data automatic creation system using the present invention will be described in detail below.

FIG. 1 shows a schematic procedure of a substrate synthesizing process in this system. In FIG. 1, A,
B is an individually designed board, and C is a part that is a combination of both boards and is further disposed outside and then discarded.
It is a split substrate having (a discarded substrate). This corresponds to a split substrate having the substrates A and B as constituent elements, as shown in FIG. Substrate dividing grooves S are provided around each of the substrates A and B. In the following description, the substrates A and B forming the split substrate are simply referred to as substrates or element substrates, and are distinguished from the split substrate.

In FIG. 1, the board configuration data 1 of the board A
Arrangement position coordinates (X, Y) of the component 4a registered in 3
And the arrangement position coordinates (X, Y) of the component 4b registered in the board configuration data 13 'of the board B are respectively C
A value based on the AD origin 1 and the CAD origin 2 is set. The board configuration data is obtained by selecting and extracting items necessary for creating NC data from CAD data. In order to create NC data for combining the boards A and B to assemble a split board C as shown in the figure, first, a board configuration file name 1 for specifying an element board to be combined is created.
4b is registered in the split board configuration data file 14. Also,
The origin, which is the coordinate reference, is unified to the origin 3 of the split board C (setting of the split board origin). The original position coordinates of the origin 1 and the origin 2 of each substrate when the origin 3 of the divided substrate is used as a reference point are registered as the origin correction offset 14c in the divided substrate configuration data file 14 of the substrate C for each substrate. For example, the origin correction offset data of the substrate A is (fx, fy).
In addition, since there is a case where it is necessary to rotate the substrate when combining the substrates like the substrate B, the rotation angle θ 14
Register d in the split board configuration data file 14. This origin correction offset 14c, rotation angle 14d, and component 4
Registration coordinates of board configuration data before combining a and 4b
Based on (X1, Y1), (X2, Y2) and the arrangement angle, coordinates (X1 ', Y1'), (X2 ', Y on the split board C are used.
2 ') and the component placement angle. In this case, the origin correction offset X = fx, Y = fy of the substrate A, the substrate rotation angle θ =
Since it is 0 °, the coordinates and angle of the component 4a on the split board C can be simply obtained by X1 ′ = X1 + fx, Y1 ′ = Y1 + fy, and the component arrangement angle is the same value as before synthesis. Board B
In the case of, the substrate rotation angle θ = 90 °, and the XY coordinate system rotates 90 °.
It is slightly different from the case a.

Generally, when the origin correction offset of the board forming the split board is (fx, fy) and the board rotation angle is θ, the coordinates (X ', Y') of the component on the split board are X '= XCOS [theta] -YSIN [theta] + fx Y '= XSIN [theta] + YCOS [theta] + fy.

Therefore, the coordinates of the part B on the split board
(X2 ', Y2') is obtained as follows.

X2 ′ = X2COSθ−Y2SINθ + fx Y2 ′ = X2SINθ + Y2COSθ + fy In order to check whether the coordinates of the component thus obtained are truly on the split board C, split board configuration data 1
The outer dimensions (Gx, Gy) 14a of the split board C are registered in the table 4. This can be determined by whether or not the obtained values of the component coordinates X ′ and Y ′ are between 0 and Gx and 0 and Gy, respectively. If at least this determination result is NG, it is understood that the above-mentioned board combining processing has not been correctly executed and there is an error in the board combination pattern registered in the divided board configuration data.

Component coordinates / angles obtained by the above method,
And the component drawing model number, mounting surface, and symbol registered in the board configuration data 13, 13 '(FIG. 6) are expanded for all the components, and the components are described later after they are matched with the input format of the optimum mounting order determination system. Output to the expansion list (FIG. 7).

FIG. 2 shows a software configuration of a system for creating NC data for assembling a split board. Of these, the part surrounded by the dotted line is the NC data automatic creation system of the present embodiment, and the present invention particularly relates to the board configuration data composition system 15 which is a part of the NC data automatic creation system.
Is related to.

First, in the CAD system 10, design data of individual element boards which are constituent elements of the split board are created. In this example, since there are two element boards, two output data 11 and 11 'are created. This output data 11,
Based on 11 ', the board configuration data creation system 12 creates board configuration data 13, 13'. As shown in FIG. 6, the board configuration data of each element board includes the arrangement position coordinates (X, Y) of each mounted component with respect to the CAD origin. In addition, a drawing model number that is a number unique to each component in a component database described later, a mounting surface that indicates the surface (front surface / rear surface) of the board to be mounted and whether the surface is mounted / inserted, a CAD number that is a unique number in the CAD
Part code that is a unique code attached to all parts used, part type, part mounting angle, mounting machine (mounting machine) N
o. including. Next, based on the board configuration data 13 and 13 ', the NC data automatic creation system 9 automatically creates NC data.

In the NC data automatic creation system 9, first, the board configuration data synthesizing system 15 receives the board configuration data 13 and 13 'as well as the part information 8 and the split board configuration data 14 and creates a parts development list 16. The component information 8 represents the component name, three-dimensional size, polarity, etc. of each component, and the split board configuration data 14 is data required when synthesizing a plurality of element boards as described above. . The component development list 16 is passed to the optimum mounting order determination system 17, and the optimum mounting order is determined. As the optimum mounting order determination system using the shortest path search method, for example, the technology disclosed in Japanese Patent Laid-Open No. 64-5100 can be used. According to this optimal mounting order,
The NC data conversion system 18 obtains the NC data 19 for each mounting machine.

FIG. 4 is an example of a hardware configuration in which each system of FIG. 2 is operating. Reference numeral 20 denotes a CAD station that performs artwork of the printed circuit board (CAD 10 in FIG. 2), 21 denotes a CAD / CAM link station that configures the board configuration data creation system 12 that creates the board configuration data 13 from the CAD output data, and 22 denotes FIG.
This is a CAM station that operates the system from the board configuration data synthesizing system 15 to the NC data converting system 18 and creates NC data for each mounting machine 24. Further, 23 is a cell controller having a function of fetching the NC data 19 created by the CAM station 22 and transmitting it to the mounting machine 24. The cell controller 23 is installed for each mounting machine 24.
It also monitors the status of each mounting machine 24, performs automatic setup, and receives actual data. All of these devices 20 to 23 are connected by a LAN. As the mounter 24 in this embodiment, a mounter for mounting various leadless components on the substrate, an inserter for inserting lead components into the substrate, a dispenser for applying an adhesive to the component mounting portion of the substrate, and a substrate check are performed. A visual inspection device and the like can be given as an example.

FIG. 5 is a diagram showing a processing flow in the board configuration data composition system. First, the split board configuration data is loaded (30), and the board configuration data for one board is read according to the board configuration data file name 14b registered therein (31). Then, the combining process 32 of the position coordinates (X, Y) and the angle θ of all the components is executed by using the method described above. After performing these processes 31 and 32 for all the board configuration data registered in the split board configuration data file 14, the parts information D / B (database) 8 is searched using the part drawing model number as a key, and the corresponding parts are searched. The part data 8 such as the part name, the three-dimensional size, and the polarity of the part is imported (33). This component data is used for interference check processing at the time of component mounting performed in the optimum mounting order determination system 17 (FIG. 2), component data creation processing in the NC data conversion system, and the like. Here, it is determined whether or not the component arrangement position coordinates converted in the process 32 for all the components mounted on the split board are on the split board (OK).
It is checked (34), and if all are OK, the final output result is edited to the data format of the component expansion list 16 (35), and then the file output process as shown in FIG. 7 is performed (36). Any one in process 34 N
If there is a component of G, it is determined that the split board configuration data registration error has occurred (37), the data is confirmed and corrected, and then the system is executed again.

The parts development list of FIG. 7 has items of a part symbol, a drawing model number, a part name, an X coordinate, a Y coordinate, an arrangement angle, a mounting surface, a section, dimensions 1 to 6, and polarity. "Figure model number",
The "CAD number" is directly taken from the board configuration data. The "mounting surface" and "part number" are defined for the split board. The “arrangement angle” is obtained by adding the rotation angle of the substrate to the arrangement angle of each element substrate. “Class” is the installed machine number. Is reflected.
“Dimension” is a parameter indicating the shape and size of various parts and is used for the interference check processing. "Polarity" indicates whether or not each component has a polarity (+/-). Part name, dimension 1
6. The polarity is extracted from the parts database 8.

As described above, according to this embodiment, by using the divided board configuration data 14, it is possible to create a correct divided board part development list regardless of the number and type of single boards constituting the divided board. is there. Further, the optimum mounting order is determined based on this result, and the NC data conversion system 18
In, NC data of each equipment (mounting machine) can be created. This makes it possible to automatically create optimum NC data corresponding to split boards of various patterns, regardless of whether the element boards are of different types or the same type.

[0025]

According to the present invention, by newly introducing the split board configuration data and performing the synthesis processing based on this, each design (CAD) can be performed regardless of the number and the number of individually designed boards. It has become possible to automatically spread information on a single split board. Further, by combining the board configuration data synthesizing system using the method of the present invention and the optimum mounting order determining system using the existing shortest path search method, it is optimal to assemble the split board, which was difficult in the past. It is possible to automatically determine the mounting order. As a result, it is possible to automate the work that has conventionally been performed by a skilled person for a long time.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing the principle of the present invention.

FIG. 2 is a software configuration diagram of a system that is an embodiment of the present invention.

FIG. 3 is an explanatory view showing an example of a split substrate which is a target of the present invention.

FIG. 4 is a hardware configuration diagram showing an embodiment of the present invention.

FIG. 5 is a flowchart showing processing of a board configuration data composition system of the present invention.

FIG. 6 is an explanatory diagram showing an example of board configuration data which is input data according to the present invention.

FIG. 7 is an explanatory diagram showing an example of a component expansion list which is an output result of the present invention.

[Explanation of symbols]

 A, B Split board component board C Split board θ Rotation angle during board synthesis 1 CAD origin of board A 2 CAD origin of board B 3 Split board origin of split board C 4a, 4b Parts 8 Parts information database 9 NC data automatic creation System fx, fy Origin correction offset Gx, Gy Split board external dimensions 20 CAD station 21 CAD / CAM link station 22 CAM station 23 Cell controller 24 Board assembly device (mounting machine)

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[Procedure amendment]

[Submission date] August 9, 1993

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0004

[Correction method] Change

[Correction content]

[0004]

By the way, conventionally, in order to efficiently assemble a plurality of printed circuit boards, these are
It is common practice to handle the board as a single board and separate all the components on the single board after the completion of mounting. Such printing plates are generally referred to as the divided board. Regarding NC data creation for such a split board,
The above conventional method has the following problems.

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0006

[Correction method] Change

[Correction content]

In addition, in some equipment specifications such as a mounting machine, the NC data cannot be created unless the coordinate data of the parts are spread over the entire split board in advance.

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0007

[Correction method] Change

[Correction content]

An object of the present invention is to automatically create NC data necessary for assembling a split board composed of a plurality of individually designed boards offline based on CAD output data regardless of the number and the number of boards. The purpose is to provide a method for creating NC data for assembling a split board.

[Procedure amendment 4]

[Document name to be amended] Statement

[Name of item to be corrected] 0015

[Correction method] Change

[Correction content]

Therefore, the coordinate (X2 ', Y2') of the component 4b on the split board is the origin correction offset of the board B.
Assuming that (fx ′, fy ′), the following is obtained.

[Procedure Amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0016

[Correction method] Change

[Correction content]

X2 ′ = − Y2 + fx ′ Y2 ′ = X2 + fy ′ In order to check whether the coordinates of the component thus obtained are truly on the split board C, split board configuration data 1
The outer dimensions (Gx, Gy) 14a of the split board C are registered in the table 4. This can be determined by whether or not the obtained values of the component coordinates X ′ and Y ′ are between 0 and Gx and 0 and Gy, respectively. If at least this determination result is NG, it is understood that the above-mentioned board combining processing has not been correctly executed and there is an error in the board combination pattern registered in the divided board configuration data.

[Procedure correction 6]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 1

[Correction method] Change

[Correction content]

[Figure 1]

Claims (1)

[Claims] 1. A method for creating NC data for assembling a split board having a plurality of boards of the same kind and different types as constituent elements by using CAD (design) data for each of the plurality of boards. Determining an origin correction offset indicating at which point on the split substrate coordinate system the origin of each of the plurality of substrates is located; determining a rotation angle of the plurality of substrates on the split substrate; Converting the mounting position coordinates of each component in each coordinate system of the plurality of boards into the mounting position coordinates on the coordinate system of the split board according to the origin correction offset and the rotation angle. A method for creating NC data for assembling a split board, characterized by