JP2006278503A - Method and device for creating processing data of substrate supporting jig - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method and a device for creating processing data of a substrate supporting jig by which an appropriate clearance can be realized and the processing data for executing machining can be easily created. <P>SOLUTION: The method for creating processing data of the substrate supporting jig includes a positional data extraction step to extract the symbol name and positional data of a part mounted to the substrate surface from a substrate CAD coordinate data 6 or a mounting NC data 7; a part package name extraction step to extract a part package name corresponding to the size of the mounted part from a part symbol name; a recess data computation step to obtain a data of a recess from the data obtained in the positional data extraction step by using a database wherein package names of the parts, the sizes of the mounted parts, and necessary clearances are registered; and a data conversion step wherein the recess data obtained in the recess data computation step are read in a three-dimensional CAD 17 to obtain a processing data. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a processing data creation method and apparatus for a substrate support jig, and more particularly, a cream which is a pretreatment when mounting a component on the surface of a substrate on which the component is mounted on both the front and back surfaces and then mounting on the back surface The present invention relates to a method and an apparatus for creating processing data for processing a recess according to a shape of a mounted component on a substrate support jig used at the time of solder application.

  FIG. 5 shows the substrate holding state in the cream solder application process after the components are mounted on one surface of the substrate on which the components are mounted on both sides. The substrate (21) is one of the substrates (21). Substrate on which concave portions (32) (33) (34) (35) corresponding to electronic parts (22) (23) (24) (25) corresponding to ICs, capacitors and other chip parts formed on the surface are formed It is supported by a support jig (31). The recesses (32), (33), (34), and (35) are the sizes corresponding to the sizes of the electronic components (22), (23), (24), and (25) (the size of the component plus clearance). The depth (Z-direction size) may be determined for each part as shown by the solid line in the figure, and it is a value common to all parts as shown by the chain line in the figure. It may be said that.

  The board support jig (31) in which such recesses (32), (33), (34), and (35) are formed is compared to the case where it is supported by a plurality of pins that are erected so as to avoid mounted parts. Thus, since the substrate (21) can be supported over a wide area, it is possible to reliably prevent the substrate (21) from being bent and to have more excellent functions and operability.

As a method of manufacturing such a substrate support jig (31), a method of machining with a milling machine or the like is known, and instead of this, a method of forming by molding (Patent Document 1) is also proposed. .
JP 2001-148391 A

  In the case of conventional machining, there is a problem that it takes a lot of man-hours and time to create data of the CPU for executing machining and actual machining, and as disclosed in Patent Document 1 In the case of forming by molding, there is a problem that it is difficult to obtain an appropriate clearance for escaping the component size, and there is a problem that the molding process itself takes considerable man-hours and time.

  An object of the present invention is to provide a processing data creation method and apparatus for a substrate support jig that can obtain an appropriate clearance and facilitate creation of machining data for performing machining.

  The processing data creation method for a substrate support jig according to the present invention is a processing data creation method for processing a recess corresponding to the shape of a mounted component on a substrate support jig that supports the substrate during backside processing after the front surface is mounted. The position data extracting step for extracting the symbol name of the component mounted on the substrate surface and the position data from either the data obtained from the board CAD or the data used by the mounting machine, and the size of the mounted component From the data obtained in the position data extraction step using a database in which the part package name, the size of the mounted part, and the required clearance are registered. Recess data calculation step for obtaining data, and concave data obtained in the concave data calculation step That a data conversion step of obtaining the machining data read into the three-dimensional CAD and is characterized in.

  The processing data creation device for a substrate support jig according to the present invention is a processing data creation device for processing a recess corresponding to the shape of a mounted component on a substrate support jig that supports a substrate during backside processing after the front surface is mounted. The position data extracting means for extracting the symbol name of the component mounted on the substrate surface and the position data from either the data obtained from the substrate CAD or the data used by the mounting machine, and the size of the mounted component From the data obtained by the position data extraction means using the part package name extraction means for extracting the obtained part package name from the part symbol name and the database in which the part package name, the size of the mounted part and the necessary clearance are registered Recess data calculation means for obtaining data and the recess data obtained by the recess data calculation means are read into a three-dimensional CAD. And it is characterized in that it comprises a data converting means for obtaining processing data by written.

  Various data are stored in the substrate CAD, but only the data (substrate CAD coordinate data) obtained by the coordinate data output function that the substrate CAD has as a standard is used. In the mounting machine, similar data is necessary for mounting work, and this data (mounting NC data) is used. Necessary data (for example, part size data) other than these data is stored in the database.

  In the board CAD, a symbol name for identifying a component is assigned to each component, and a package name that can be associated with the component size is given to each component. The board CAD coordinate data includes a part symbol name, a package name, and position data.

  The mounting machine arranges the printed circuit board on the XY table, performs mounting positioning by operating the XY table, holds the component with the suction nozzle attached to the rotary head, and mounts the component on the printed circuit board. The mounting NC data stores a command for mounting a component, and a component symbol name, a position of the component on the board, a rotation angle, and the like can be extracted from the command.

  The 3D CAD is used to create drawings necessary for processing by an NC processing machine (in this case, a substrate support jig processing machine), and has a function of automatically executing in a macro language. .

  The part symbol name means a symbol on the circuit diagram of the board, and the part symbol name given by the circuit designer at the time of circuit design CAD is also used for the board CAD. The component symbol name is used in both the board CAD and the mounting machine, and is associated with the component name (product name) in the component table. The component size is uniquely determined from the component name, and the component name and component size are registered in the database. Normally, a component symbol name, a component package name, and a component position are stored in the board CAD, and a component symbol name and a component position are stored in the mounting NC data. The component package name is a symbol given to each component on the user side by the board CAD. If the component package name is known, the data of the component (size data necessary for board creation, not the actual size of the component) And the offset (distance between the component position on the substrate and the reference position of the component) can be known. The exact actual size of the part can be obtained by referring to the database by the part package name. Since the component package name corresponds to the component and the component symbol name identifies the component on the board, the component package name is indirectly related to the component symbol name. In the component package name extraction step, when the component package name is obtained from the component symbol name, when the board CAD data is used, the component package name given to each component symbol name in the board CAD coordinate data is used. When using the mounting NC data, the component package name corresponding to the component symbol name may be extracted from the component table using the component symbol name stored in the mounting NC data.

  As described above, the board CAD coordinate data and the mounting NC data normally store at least the name of the component symbol mounted on the board surface and its position data, which are used in the position data extraction step (means). Is done. In the position data extraction step (means) and the component package name extraction step (means), data that does not depend on the manufacturer of the board CAD or the mounting machine is created by appropriate software. A database in which component package names, mounted component sizes, and necessary clearances are registered can be created using commercially available database software. In the recess data calculation step (means), the size of the recess (X direction size, Y direction size, and Z direction size) is obtained by adding the clearance to the component size. The size of the recess thus obtained is converted into data that can be input to the three-dimensional CAD in the data conversion step (means), and this data is input to the three-dimensional CAD. Processing data of the substrate support jig).

  The database stored in the processing data creation device for the substrate support jig stores at least the component package name, the corresponding component size data, and the clearance required for processing the recess. Preferably, the component name Is stored. The part size data is extracted from the part name or part package name in the parts table with reference to the database in which the part size is registered. The clearance required when processing the recess can be appropriately input from a personal computer screen or the like.

  In the substrate support jig machining data creation method (creating apparatus) according to the present invention, a database for creating a recess package name and corresponding recess processing three-dimensional data from a component package name and corresponding component size data It is preferable to further include a processing step (means). The database is created by registering the part package name and the part size uniquely obtained from the part name in the database, and the database processing step (means) creates the corresponding size data in the database for the part package name. Extracted.

  The recess package name may be the same as the component package name, but it is more preferable to use a generic name for the component package names having the same size data (including substantially the same in terms of processing the recesses). preferable. In this way, the number of package names that need to be managed on the database can be reduced, and the database can be simplified.

  In the substrate support jig machining data creation method (creating apparatus) according to the present invention, the data conversion step (means) converts the recess data obtained in the recess data calculation step (means) into a macro sentence and then performs a three-dimensional CAD. It is preferable to further include a macro sentence conversion step (means) to be read by the user.

  In this way, conversion to a macro sentence for drawing a graphic is easier than generating graphic data directly, and man-hours and time required for creating machining data can be further reduced.

  According to the processing data creation method and apparatus for the substrate support jig of the present invention, the position data is obtained using the data included in the substrate CAD coordinate data or the mounting NC data, and the processing is performed in addition to the position data. All necessary data can be obtained by creating a database of part sizes and clearances required for processing, and processing this data using 3D CAD significantly reduces man-hours and time. The processing data of the substrate support jig considering the clearance can be obtained with less. Further, since the processing data can be obtained by calculation, it is possible to easily cope with a substrate on which components are mounted at a high density.

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

  FIG. 1 is a block diagram showing an example of a processing data creation device for a substrate support jig according to the present invention. FIG. 2 is a perspective view showing an example of the substrate support jig (41) manufactured using the substrate support jig processing data creation device (1). Similar to that shown in FIG. 5, the substrate support jig (41) needs to be processed with a recess (41a) having an appropriate clearance and depth to escape the component size. Data for processing is obtained by the processing data creation device (1) of the substrate support jig.

  As shown in FIG. 1, the substrate support jig machining data creation device (1) includes a CPU (2), an operation unit (3), a display unit (4), and a storage unit (5).

  The CPU (2) forms the center of the device and controls the entire device. Processing in the CPU (2) is performed by software. The operation unit (3) is a part where the user performs various operations for creating machining data. The display unit (4) is a part for performing various displays such as a parts list and a processing size. The storage unit (5) is a part for storing a database or the like, and the data stored in the substrate CAD coordinate data (6) or the mounting NC data (7) is transferred to the CPU (2 ). Also, a parts table (8) as shown in FIG. 3A is created for the part symbol names used in the board CAD coordinate data (6) and the mounting NC data (7). The data (8) is also taken into the CPU (2) through the storage unit (5). The CPU (2) is connected to the processing machine (9) and can supply the processing data obtained inside to the processing machine (9).

  In the board CAD coordinate data (6) used for designing the board, as shown in FIG. 3B, the symbol name of the part (name for identifying the part on the board), the part package name, the part The position on the board (X coordinate and Y coordinate), the rotation angle of the component, the mounting surface (front or back), etc. are stored. Thereby, a component symbol name, a component package name, and its position data can be extracted from the board CAD coordinate data (6). FIG. 3B shows the actual substrate CAD coordinate data (6) in a simplified manner, and the actual substrate CAD coordinate data (6) includes more unnecessary information, and the substrate CAD. Each format has a different format.

  The mounting NC data (7) is for mounting components on the board based on the same data as the board CAD coordinate data (6). As shown in FIG. 4, commands including G code, position of the component on the board (X coordinate and Y coordinate), rotation angle of the component, and the like are stored. The G code is associated with the component symbol name, and the component symbol name and its position data can be extracted from the mounting NC data (7).

  The CPU (2) has a position data extraction unit (11), a component package name extraction unit (12), a database processing unit (13), a recess data calculation unit (14), and a data conversion unit (15).

  The position data extraction unit (11) extracts position data that extracts the component symbol name and its position data mounted on the board surface from the data included in the board CAD coordinate data (6) or the mounting NC data (7). The part package name extraction unit (12) is a part constituting part package name extraction means for extracting the part package name associated with the size of the mounted part from the part symbol name. In the board CAD coordinate data (6) and the mounting NC data (7), the position and rotation angle of the part on the board are stored as information for the part symbol name for identifying the part on the board. . These pieces of information are temporarily stored in the storage unit (5), and as shown in FIG. 3 (b) or (c) by software provided in the position data extraction unit (11) and the component package name extraction unit (12). The data is simplified and arranged in a format that can be used by the CPU (2). Here, in the component package name extraction unit (12), when the board CAD coordinate data (6) is used, the component package name is changed to the board CAD coordinate data (6) as shown in FIG. Since it is stored, it is used as it is, and when using the mounting NC data (7), the component package name is not stored in the mounting NC data (7). Package name is extracted.

  In this way, the board CAD coordinate data (6) and the NC data for mounting (7) completely different from the board CAD coordinate data (6), which have different specifications for each manufacturer, are shown in FIG. Data that is not related to the manufacturer in the format shown in

  The database processing part (13) is the part that constitutes the database processing means that stores the data necessary to obtain the processing size into a database, and is formed by installing commercially available database software (for example, access made by Microsoft Corporation). Has been. As shown in FIG. 4 (b), the database processing unit (13) has a cross-sectional shape and a component size (X direction size, Y for each component package name (the same shape if the component package names are the same)). (Direction size and Z direction size) and clearances (X direction oversize, Y direction oversize, and Z direction oversize) required for the recess (41a) to escape this part are managed as a table. If the part name is known, the size of the part is uniquely determined and is registered in the database by input from the operation unit (3). Thereby, referring to this database, the part size data is extracted from the part name or part package name of the parts table. Note that the cross-sectional shape is selected from, for example, three types of a rectangle, a square, and a circle.

  The recess data calculation unit (14) constitutes a recess data calculation means for obtaining the recess data from the data obtained by the data extraction unit using the size of the mounted component obtained by the database processing unit (13) and the necessary clearance. It is a part to do. That is, the recess size calculation unit (14) is formed by assigning a calculation formula to the database software when the size of the recess (41a) is obtained from the size of the component. This calculation formula is, for example, for the size of the recess (41a): X direction size = package X direction size + X direction oversize × 2, Y direction size = package Y direction size size + Y direction oversize × 2, Z direction Size = Z direction size of package + X direction oversize.

  In this way, the recess size calculation unit (14) extracts the cross-sectional shape, outer dimensions, and recesses extracted using the part package name of the data (see FIG. 4A) imported into the database processing unit (13) as a keyword. The clearance (see FIG. 4B) is used to determine the size of the recess 41a corresponding to each part, and is output as export data as shown in FIG. 4C.

  The database processing unit (13) is provided with a data input form capable of performing part data input, part size change, Z-direction batch conversion, oversize change, etc. The data in FIG. It can be changed as appropriate through the operation unit (3). The Z-direction batch conversion is used to make the Z-direction size of the recess (41a) constant regardless of the Z-direction size of each part. By this Z-direction batch conversion, the Z-direction batch conversion shown in FIG. Regardless of the direction size, the Z-direction size of the recess (41a) can be a constant value (for example, 5.0 mm). This is the direction indicated by the chain line in FIG. 5, and the size of the recess (41a) in the Z direction as shown in FIG. 5 by the solid line (32), (33), (34) and (35). Of course, it may correspond to each of 22) (23) (24) (25).

  The data conversion unit (15) is a part that constitutes a data conversion unit that reads the concave data obtained by the concave data calculator (14) into a three-dimensional CAD to obtain machining data. The data conversion unit (15) includes a macro sentence conversion unit (16) and a three-dimensional CAD unit (17).

  A commercially available three-dimensional CAD (for example, SolidWorks manufactured by Solid Works) is installed in the three-dimensional CAD unit (17). By inputting the position / size data of the concave portion (41a) obtained by the concave portion data calculating section (12) to the three-dimensional CAD section (17), data to the processing machine (9) is output.

  The macro sentence conversion unit (16) is a part that constitutes macro sentence conversion means for converting the recess data obtained by the recess data calculation unit (12) into a macro sentence before being read by the three-dimensional CAD. This macro sentence conversion unit (16) does not convert the data to be input to the three-dimensional CAD unit (17) into graphic data that can be input to the three-dimensional CAD unit (17). By software, it is converted into a macro statement format for drawing graphics. The macro statement is a code that encodes commands such as “Draw a rectangle of a predetermined size” and “How much is the depth”. It is a three-dimensional CAD that creates data for the processing machine (9). However, there are various types of graphic data formats, and it is difficult to directly generate graphic data corresponding to each format. On the other hand, conversion to a macro sentence is relatively easy, and thus drawing of a figure by three-dimensional CAD can be easily performed.

  When manufacturing the substrate support jig (41) using the above-mentioned substrate support jig processing data creation device (1), the substrate CAD for designing the substrate supported by the substrate support jig (41) The coordinate data (6) or mounting NC data (7) for mounting the board is used as position information, and the data stored in the database processing unit (13) on the processing data creation device (1) side is processed. Used as size information. That is, since the position data extraction unit (11) extracts the position and rotation angle of the mounted component, by adding the cross-sectional shape and size data of the mounted component from the database processing unit (13) to the component, Three-dimensional data for processing the recess (41a) to be released is determined. Thus, the data for the processing machine can be obtained very easily, and the obtained data for the processing machine can be obtained from each electronic component (22) (23) (24) (25) mounted on the substrate (21). The board support jig (41) manufactured in consideration of the shape and size (see FIG. 5) can exhibit extremely excellent board supportability in processes such as cream soldering. it can.

FIG. 1 is a block diagram showing an example of a processing data creation device for a substrate support jig according to the present invention. FIG. 2 is a perspective view showing an example of a substrate support jig obtained by using the processing data creation device according to the present invention. FIG. 3 is a diagram showing various data used in the processing data creation device for the substrate support jig according to the present invention. FIG. 4 is a diagram showing various data created by the substrate support jig machining data creation device according to the present invention. FIG. 5 is a cross-sectional view showing an example of use of the substrate support jig obtained by using the processing data creation device according to the present invention.

Explanation of symbols

(1) Machine data creation device for substrate support jig
(6) PCB CAD coordinate data
(7) NC data for mounting
(11) Location data extraction unit
(12) Part package name extraction section
(13) Database processing section
(14) Recess data calculation part
(15) Data converter
(16) Macro statement conversion section
(17) 3D CAD section
(41) Board support jig
(41a) Recess

Claims (6)

A processing data creation method for processing a recess according to the shape of a mounted component on a substrate support jig that supports a substrate during backside processing after mounting the front surface,
Corresponding to the size of the mounted component, the position data extracting step for extracting the symbol name of the component mounted on the substrate surface and the position data from either the data obtained from the substrate CAD or the data used in the mounting machine Use the part package name extraction step to extract the part package name from the part symbol name and the data obtained in the position data extraction step using the database in which the part package name, the size of the mounted part, and the required clearance are registered. Processing data generation for a substrate support jig, comprising: a concave data calculation step to be obtained; and a data conversion step for reading the concave data obtained in the concave data calculation step into a three-dimensional CAD to obtain processing data Method.   2. The processing data of the substrate support jig according to claim 1, further comprising a database processing step of creating a recess package name and corresponding recess processing three-dimensional data from the component package name and corresponding component size data. How to make.   The processing of the substrate support jig according to claim 1 or 2, wherein the data conversion step includes a macro sentence conversion step of converting the concave part data obtained in the concave part data calculation step into a macro sentence and then reading the macro sentence into a three-dimensional CAD. Data creation method. A processing data creation device for processing a recess according to the shape of a mounted component on a substrate support jig that supports a substrate during backside processing after mounting the front surface,
Position data extraction means for extracting the symbol name of the component mounted on the substrate surface and its position data from either the data obtained from the substrate CAD or the data used by the mounting machine, and the size of the mounted component Use the part package name extraction means to extract the part package name from the part symbol name, and the concave part data from the data obtained by the position data extraction means using the database that registered the part package name, the size of the mounted part, and the required clearance. Processing data creation for a substrate support jig, comprising: a concave data calculation means to obtain; and a data conversion means for obtaining the processing data by reading the concave data obtained by the concave data calculation means into a three-dimensional CAD apparatus.   5. The processing data of the substrate support jig according to claim 4, further comprising database processing means for creating a recess package name and corresponding recess processing three-dimensional data from the component package name and the corresponding component size data. Creation device.   6. The processing of the substrate support jig according to claim 4, wherein the data conversion means includes macro sentence conversion means for converting the recess data obtained by the recess data acquisition means into a macro sentence and then reading it into a three-dimensional CAD. Data creation device.

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