JP3783290B2 - Automatic part type identification device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a component type automatic discrimination device for automatically discriminating the component type of a component mounted on a printed circuit board from design data of the printed circuit board created by a CAD (computer aided design) device.
[0002]
[Prior art]
Parts mounting machines for mounting parts on printed circuit boards, Gerber data creation parts libraries for manufacturing metal masks used for manufacturing printed circuit boards, product design evaluation devices, etc. Although it is necessary to input the component type data of the mounted component, conventionally, the determination of the component type of the mounted component on the printed circuit board has been performed by a person searching for a target component from a design drawing or standard.
[0003]
[Problems to be solved by the invention]
Thus, in the past, when creating component type data for components mounted on a printed circuit board to be input to a component mounting machine, etc., humans can determine the component type of components mounted on a printed circuit board from design drawings and standards. Since the process is performed by searching for the target part, it takes a lot of time to create the part type data of the part mounted on the printed circuit board, and there is a problem that erroneous determination may occur.
[0004]
In view of this point, the present invention can reduce the time required to create the component type data of the mounted component of the printed circuit board to be input to the component mounting machine and the like, and reduce the possibility of occurrence of erroneous determination. It is an object of the present invention to provide a component type automatic discrimination device that can be used.
[0005]
[Means for Solving the Problems]
In the present invention, the first invention (the component type automatic discrimination device according to claim 1) includes a component type sorting table in which the component type is sorted by the component type discriminating element, and a printed circuit board created by the CAD device. Print from the component type discriminating element extracted by the component type discriminating element extraction unit with reference to the part type discriminating element extraction unit that extracts the component type discriminating element of the mounted component on the printed circuit board from the design data A component type automatic discrimination unit that automatically discriminates the component type of the component mounted on the circuit board is provided.
[0006]
In the first aspect of the invention, since the component type sorting table and the component type determination element extraction unit are provided, the component type automatic determination unit can be provided, so the component type of the component mounted on the printed circuit board It is possible to reduce the time required for the determination.
[0007]
In the first aspect of the invention, the part type of the special part that is not assigned to the part type discrimination distribution table is manually determined. However, manual intervention is limited to the determination of the part type of the special part. Therefore, the possibility of occurrence of erroneous determination can be reduced.
[0008]
In the present invention, the second invention (the component type automatic discrimination device according to claim 2) is the special component according to the first invention, wherein the component type cannot be automatically discriminated by the component type auto discriminator. As described above, a special component library that can be manually registered so that the component type automatic determination unit can search for the component type by the component specification is provided.
[0009]
In the second aspect of the invention, the first determination of the component type of the special component that is not assigned to the component type distribution table is performed manually. For the second and subsequent determinations, refer to the special component library. Since it can be performed automatically by the component type automatic discrimination unit, the intervention by humans can be minimized and the possibility of occurrence of erroneous discrimination can be reduced as compared with the case of the first invention.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a view showing an embodiment of the present invention together with a printed circuit board design CAD device and the like.
[0011]
In FIG. 1, 1 is a CAD device for designing a printed circuit board, 2 is an embodiment of the present invention, and in Embodiment 2 of the present invention, design data of the printed circuit board from the CAD device 1, so-called CAD data is supplied.
[0012]
Also, 3 is an NC data part for a component mounting machine that stores the part type data output from the second embodiment of the present invention, and 4 is a print based on data stored in the NC data part 3 for the component mounting machine. This is a component mounting machine for mounting components on a circuit board.
[0013]
In the second embodiment of the present invention, reference numeral 5 denotes a component type sorting table in which a certain type of component type that may be mounted on a printed circuit board is sorted by a component type discrimination element.
[0014]
Here, FIG. 2 to FIG. 5 are diagrams showing the contents of the component type distribution table 5, and in this example,
DIP (Dual Innline Package) type,
SIP (single inline package) type,
ZIP (Zig-zag Innline Package) type,
PGA (Pin Grid Array) type,
Radial type,
Axial type,
SOP (Small Outline Package) type,
S-SOP (Shrink SOP) type,
QFP (Quad Flat Package) type,
T-QFP (Thin QFP) type,
PLCC (Plastic Lead Chip Carrier) type,
SMPGA type (Surface Mount PGA) type,
13 types of CHIP type component types are mounting type (lead insertion type or surface mounting type), pin arrangement (when the component is observed from above, whether the pin exists outside or inside the component , Whether it exists inside), pin arrangement (number of pins in the arrangement direction), and other component type determination elements (pin pitch size, number of pins, and component code).
[0015]
In this example, the mounting type is the primary discrimination element (part type discrimination element to be discriminated first), the pin arrangement is the secondary discrimination element (part type discriminator to be discriminated second), and the pin arrangement is tertiary discrimination. Although the element (part type discriminating element to be discriminated third) and the other part type discriminating elements are quaternary discriminating elements (part type discriminating element to be discriminated fourth), this relationship can be arbitrarily changed. Is.
[0016]
In FIG. 1, reference numeral 6 denotes a manual part so that the part type automatic discrimination unit can search for the part type based on the part specification by using as a special part a mounted part that cannot be automatically discriminated by a part type automatic discrimination unit described later. This is a special parts library that can be registered by
[0017]
Reference numeral 7 denotes a CAD data storage unit for storing CAD data output from the CAD apparatus 1, and 8 denotes a mounting type of the mounted component, pin arrangement, etc. based on the component shape included in the CAD data stored in the CAD data storage unit 7. A component type discriminating element extracting unit for extracting a component type discriminating element such as a pin arrangement and a pin pitch size, and 9 a component type discriminating element in which a component type discriminating element output from the component type discriminating element extracting unit 8 is registered. It is a database.
[0018]
Also, 10 refers to the component type distribution table 5 and the special component library 6, and automatically identifies the component type of the component mounted on the printed circuit board from the component type determination element registered in the component type determination element database 9. An automatic determination unit (part type automatic determination engine).
[0019]
6 to 8 are flowcharts showing a processing flow performed by the component type automatic discrimination unit 10. In FIGS. 6 to 8, SC (switch) and IF (if) are judgment symbols for requesting judgment. Yes, SC asks to select a judgment result from a plurality of options, and IF asks for a judgment of YES (No) / NO (No).
[0020]
In other words, in the component type automatic determination unit 10, first, the component type of the mounted component is determined with reference to the component type distribution table 5, and the component type determination result is registered in the component type determination result database 11.
[0021]
Here, when the mounting type of the mounted component is the lead insertion type, the pin arrangement is outside the component, and the pin arrangement is in two directions, the component type is determined as the DIP type (see FIG. 2).
[0022]
When the mounting type of the mounted component is a lead insertion type, the pin arrangement is outside the component, and the pin arrangement is one direction, the component type is determined as an axial type (see FIG. 3).
[0023]
When the mounting type of the mounted component is a lead insertion type and the pin arrangement is inside / outside of the component, the component type is determined as the ZIP type (see FIG. 2).
[0024]
Further, when the mounting type of the mounted component is a lead insertion type, the pin arrangement is in the component, and the pin arrangement is one direction, the component type is determined as the SIP type (see FIG. 2).
[0025]
Further, when the mounting type of the mounted component is a lead insertion type, the pin arrangement is in the component, the pin arrangement is other than one direction, and the component code is RD, the component type is determined as the radial type (third) (See figure).
[0026]
In addition, when the mounting type of the mounted component is a lead insertion type, the pin arrangement is within the component, the pin arrangement is other than one direction, and the component code is other than RD, the component type is determined as the PGA type (No. 1). (See Figure 3).
[0027]
Further, when the mounting type of the mounted component is the surface mount type, the pin arrangement is outside the component, the pin arrangement is in two directions, and the pitch = 1.27 mm, the component type is determined as the SOP type (third) (See figure).
[0028]
Further, when the mounting type of the mounted component is the surface mount type, the pin arrangement is outside the component, the pin arrangement is in two directions, and the pitch <1.27 mm, the mounted component is determined as the S-SOP type ( (See FIG. 4).
[0029]
Further, when the mounting type of the mounted component is the surface mount type, the pin arrangement is outside the component, the pin arrangement is the four-direction type, and the component code is LCC, the component type is determined to be the PLCC type (fifth). (See figure).
[0030]
In addition, when the mounting type of the mounted component is the surface mount type, the pin arrangement is outside the component, the pin arrangement is the four-direction type, and the pitch = 1.27 mm, the component type is determined as the QFP type (No. 1). (See Fig. 4).
[0031]
Further, when the mounting type of the mounted component is the surface mount type, the pin arrangement is outside the component, the pin arrangement is in four directions, and the pitch is <1.27 mm, the component type is determined as the T-QFP type ( (See FIG. 4).
[0032]
When the mounting type of the mounted component is the surface mount type, the pin arrangement is in the component, and the number of pins> 20, the component type is determined as the SMPGA type (see FIG. 5).
[0033]
If the mounting type of the mounted component is the surface mount type, the pin arrangement is in the component, and the number of pins is other than 20, the component type is determined as the CHIP type (see FIG. 5).
[0034]
In FIG. 1, reference numeral 11 denotes a component type determination result database in which the component type determination result by the component type automatic determination unit 10 and the manual component type determination result for special parts are registered.
[0035]
Reference numeral 12 denotes a component type incorporation unit that incorporates component type data into the component mounting machine NC data unit 3 based on the component type determination result registered in the component type determination result database 11.
[0036]
In Embodiment 2 of the present invention configured as described above, CAD data supplied from the CAD device 1 is stored in the CAD data storage unit 7, and in the part type discrimination element extraction unit 8, the CAD data storage unit 7. The component type discriminating element of the mounted part is extracted from the CAD data stored in the data, and the extracted part type discriminating element is registered in the component type discriminating element database 9.
[0037]
The component type automatic discrimination unit 10 refers to the component type sorting table 5 and the special component library 6 if necessary, and determines the component to be mounted from the component type discrimination element registered in the component type discrimination element database 9. The component type is determined, and the component type determination result is registered in the component type determination result database 11.
[0038]
If the component type automatic determination unit 10 cannot automatically determine the component type of the mounted component, that is, a mounted component that is not registered in the component type distribution table 5 or the special component library 6 is set as a component type determination target. If there is a part type, the part type is discriminated based on the number of persons, the part type discrimination result is registered in the part type discrimination result database 11, and the part type automatic discrimination unit 10 uses the mounted part as a special part according to the part specification. Is registered in the special parts library 6 so that the search can be performed.
[0039]
Thereafter, based on the part type discrimination result registered in the part type discrimination result database 11, the part type incorporation unit 12 incorporates the part type into the NC data unit 3 for the component mounting machine, and the component mounting machine 4 Mounting components are mounted on the printed circuit board.
[0040]
As described above, according to the second embodiment of the present invention, the component type sorting table 5, the component type determination element extraction unit 8, and the component type automatic determination unit 10 are provided. The time required for determining the component type of the mounted component can be shortened, and the time required for creating the component type data to be input to the NC data unit 3 for the component mounting machine can be shortened.
[0041]
In addition, since the special component library 6 is provided, the first determination of the component type of the special component that is not distributed to the component type distribution table is performed manually, but the determination after the second is automatically performed. Therefore, it is possible to minimize human intervention and reduce the possibility of erroneous determination.
[0042]
The special component library 6 may be omitted. However, in this case, the possibility of erroneous determination is greater than when the special component library 6 is provided.
[0043]
【The invention's effect】
As described above, according to the first invention (part automatic classification device according to claim 1), it is provided with a part classification table, a part classification discrimination element extraction unit, and a part classification automatic discrimination unit. As a result, it is possible to reduce the time required to determine the component type of the component mounted on the printed circuit board, and to reduce the time required to create the component type data of the component mounted on the printed circuit board to be input to the component mounting machine or the like. At the same time, since manual intervention is limited only to the determination of the component type of the special component, the possibility of erroneous determination can be reduced.
[0044]
Further, according to the second invention (the component type automatic discrimination device according to claim 2), as in the first invention, the time required for discriminating the component type of the component mounted on the printed circuit board is shortened, and the component mounting In addition to reducing the time required to create part type data for parts mounted on a printed circuit board to be input to a machine, etc., a special part library is provided, and even for special parts, the part type is discriminated after the second time. Can be performed automatically, so that human intervention is minimized and the possibility of occurrence of erroneous determination can be reduced as compared with the case of the first invention.
[Brief description of the drawings]
FIG. 1 is a diagram showing an embodiment of the present invention together with a printed circuit board designing CAD device and the like.
FIG. 2 is a diagram showing the contents of a component type sorting table provided in an embodiment of the present invention.
FIG. 3 is a diagram showing the contents of a component type sorting table provided in an embodiment of the present invention.
FIG. 4 is a diagram showing the contents of a component type sorting table provided in an embodiment of the present invention.
FIG. 5 is a diagram showing the contents of a component type sorting table provided in an embodiment of the present invention.
FIG. 6 is a flowchart illustrating a processing flow performed by a component type automatic determination unit provided in an embodiment of the present invention.
FIG. 7 is a flowchart illustrating a processing flow performed by a component type automatic determination unit provided in an embodiment of the present invention.
FIG. 8 is a flowchart illustrating a processing flow performed by a component type automatic determination unit provided in an embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 CAD apparatus 2 for printed circuit board design Embodiment 1 of this invention 3 NC data part for component mounting machines 4 Component mounting machine 5 Parts classification distribution table 6 Special parts library 7 CAD data storage part 8 Part classification discrimination element extraction part 9 Part type discriminating element database 10 Part type automatic discriminating unit 11 Part type discriminating result database 12 Part type incorporating unit

Claims (2)

A component type sorting table in which component types are sorted by component type discriminating elements;
A component type discriminating element extraction unit for extracting a component type discriminating element of a component mounted on the printed circuit board from design data of the printed circuit board created by a CAD device;
A component type automatic determination unit that automatically determines the component type of the component mounted on the printed circuit board from the component type determination element extracted by the component type determination element extraction unit with reference to the component type distribution table ;
The component type distribution table is:
As part classification, DIP type, SIP type, ZIP type, PGA type, radial type, axial type, SOP type, shrink SOP type, QFP type, thin QFP type, PLCC type, SMPGA type, CHIP type Including
Whether the lead is of the lead insertion type or the surface mount type as the component classification discriminating element, and the component is observed from above, the pin is present outside or inside the component, Whether it exists inside is the second component type determination element, the number of pins in the direction of arrangement is the third component type determination element, and the pin pitch size, the number of pins, and the component code are the fourth component type determination A component type automatic discrimination device characterized by being an element . A special part that can be manually registered so that the part type automatic determination unit can search the part type by the part specification as a special part with the mounted part whose part type could not be automatically determined by the part type automatic determination unit The component type automatic discrimination apparatus according to claim 1, further comprising a library.

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