JP4188674B2 - Inspection data creation method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an inspection data creation method created by an inspection machine in an inspection after mounting electronic components on a printed circuit board.
[0002]
[Prior art]
Conventionally, after mounting a printed circuit board, a mounting state is inspected by an inspection machine.
[0003]
Hereinafter, the outline of mounting state inspection by an inspection machine will be described with reference to FIG. As shown in FIG. 5, after the electronic component 9 mounted on the printed circuit board 8 is mounted on the pad 10 of the copper foil part or soldered, the mounting state is inspected by the inspection machine 7. In the figure, 11 indicates solder, and 12 indicates solder determination conditions. In order to perform this inspection, inspection data is created in advance. As main data, it is necessary to prepare an inspection position, an inspection determination condition, an inspection algorithm, and the like based on information of a printed circuit board to be inspected in advance.
[0004]
Conventionally, as this creation method, mounting position information, component shape, and the like are prepared in advance using CAD information and the like, and the inspection determination conditions and the inspection algorithm are taught by an inspection machine to create them.
[0005]
Also, as a method for setting an inspection program for a printed circuit board similar to this, a method in which a printed circuit board inspection result is statistically processed to determine an optimal inspection program for inspection contents is known (for example, see Patent Document 1). )
[0006]
[Patent Document 1]
Japanese Patent Laid-Open No. 10-327000 (page 2, FIG. 1)
[0007]
[Problems to be solved by the invention]
However, such a conventional method for creating inspection data has the following problems.
[0008]
In other words, inspection judgment conditions and inspection algorithms require experience from the operator, and even with the same parts, the data differs depending on the inspection machine or operator, resulting in variations in inspection accuracy, which is a cause of missed inspections and excessive inspections. It was.
[0009]
In addition, since it is necessary to increase the inspection accuracy by repeatedly performing actual inspection and creating data, it takes time and effort.
[0010]
[Means for Solving the Problems]
In order to solve the above problems, the inspection data creation method of the present invention acquires inspection libraries from a plurality of inspection machines, registers them in the inspection library database, and prioritizes library codes of the same part number. When there is no part shape code in the first process to be registered in the inspection library management database, the second process for obtaining the inspection library code from the inspection position database and the part shape database using the part shape code as a key, and the previous process, Searching for similar parts from the part dimension information corresponding to the part number, obtaining the part shape code, obtaining the inspection library code using the shape code as a key, and outputting the inspection position and library code. It is characterized by.
[0011]
According to the present invention, a high-priority inspection library code is searched from the inspection library management database in which the part code library code is registered with priority, using the part shape code as a key, and the inspection position and library code are obtained. Because it outputs, inspection library code including inspection judgment conditions and inspection algorithms of inspection machines can be created in a short time, and variations in inspection judgment conditions and inspection algorithms are eliminated, enabling inspection with high inspection accuracy. .
[0012]
DETAILED DESCRIPTION OF THE INVENTION
The invention described in claim 1 of the present invention
Inspection for inspecting a printed circuit board having an inspection position database and a part shape database in which search results are processed and output to a plurality of inspection machines, and an inspection library management database for centrally managing the libraries of the plurality of inspection machines A method for creating machine data,
An inspection library including inspection determination materials, inspection algorithms, and inspection machine codes is acquired from the plurality of inspection machines, registered in the inspection library management database, statistically processed for library codes of the same part number, and prioritized. A first step of re-registering in the inspection library management database; a second step of obtaining an inspection library code having a higher priority from the inspection library management database using the part shape code obtained from the inspection position database and the part shape database as a key; If there is no part shape code in the previous process, a similar part is searched from the part dimension information corresponding to the part number, the part shape code is obtained, an inspection library code is obtained using this shape code as a key, and an inspection position And the third work that outputs the library code corresponding to the inspection position The first step includes obtaining an inspection library including an inspection determination material corresponding to a library code, an inspection algorithm, and the inspection machine code from the plurality of inspection machines, and registering the inspection library in an inspection library management database. for each same part No., and statistical processing of the test algorithms and the inspection determination condition for the tested machine code, prioritize, characterized in that to re-register in the inspection library management database, according to the present invention, component Using the shape code as a key, search the inspection library management database for the inspection library code with the highest priority, and output the inspection position and library code, so the inspection library code including the inspection judgment conditions and inspection algorithm of the inspection machine in a short time Variation of inspection judgment conditions and inspection algorithms. Also eliminated, allowing high inspection accuracy inspection.
[0014]
In the invention according to claim 2 , in the second step, the board to be inspected is specified, the part part number corresponding to the inspection position is searched from the inspection position database, the part part number is used as a key, and the part shape database is used. A part shape code is searched, and an inspection library code having a higher priority is searched from the inspection library management database using the part shape code as a key.
[0015]
In the third aspect of the invention, the third step is the second step, and if the inspection library code can be searched, the inspection position and the library code are output. A shape code is obtained, an inspection library code having a higher priority is searched from the inspection library management database using the part shape code as a key, and an inspection position and a library code are output.
[0016]
According to the invention described in the claim, to get the test library containing a test algorithm and test determination conditions corresponding to the library code from the inspection machine, registered in the inspection library management database, which was statistical processing, the same test Prioritize the machine library code, re-register it in the inspection library management database, and inspect with high priority by the part shape code obtained using the part number corresponding to the inspection position of the board to be inspected as a key Since the library code is searched and the library code corresponding to the inspection position is output, it is possible to create the inspection library code including the inspection judgment conditions and inspection algorithm of the inspection machine in a short time. Also, variations in inspection judgment conditions and inspection algorithms by operators are eliminated, and inspection accuracy is improved. It becomes possible to high inspection. In addition, since data can be created even if there is no actual product such as a prototype board, inspection data can be created in advance, and data creation work can be made more efficient.
[0017]
Invention according to claim 4, inspection location database, a substrate ID, and the inspection position, and a part number, component shape database manages the part number, and a component shape code, the test library management database, and inspection machine number, and the component shape code, and inspection determination condition, the inspection algorithm number, and manages a priority use numbers, each attribute, edit, and delete, and change, that can be added and the Features.
[0018]
The invention described in claim 5 is characterized in that the examination library management database can be charged according to use.
[0019]
Embodiment
Hereinafter, an inspection data creation method showing an embodiment of the present invention will be described with reference to the drawings.
[0020]
FIG. 1 is a diagram showing a configuration of an inspection data creation method according to an embodiment of the present invention. In the figure, the search results of the inspection position database 1 and the part shape database 2 are input to the library creation process 5, inspection data is generated, and output to the inspection machine 7 of the inspection machine group 6. Further, the library of the inspection machine is centrally managed by the inspection library management database 3. The inspection library statistical processing is to obtain different inspection judgment conditions and algorithm priority levels for each inspection machine with the same part number of the same electronic component. The median value of the conditions may be obtained.
[0021]
About a statistical process, you may use a known thing and it does not prescribe | regulate in particular. In addition, each process, database, and inspection machine may be connected via a network, or data may be transferred by a medium.
[0022]
In addition, the database can also integrally manage inspection machines of a group of inspection machines in a plurality of factories, and may be input / output using the Internet or the like. In this case, the person who manages the examination library management database may charge for the user according to the frequency of the user. For example, it is possible to charge for one part shape, one part product number and the number of input / output times.
[0023]
Specific database management items will be described with reference to FIG. The inspection position database 1 includes a board number that uniquely specifies a printed circuit board to be inspected, an inspection position, and a part number of an electronic component that is mounted at the inspection position. This database does not have to be a relational database, and may be in a file format as long as a printed circuit board to be inspected is specified.
[0024]
The component shape database 2 manages the relationship between the component product number and the component shape code, and specific component dimensions that are attributes of the component shape code. Since the same component shape code may correspond to a plurality of component part numbers, the configuration can be efficiently managed. However, the above configuration is not unique and there are other methods as long as duplication is allowed.
[0025]
The inspection library management database 3, the inspection library code, and these attributes are managed. Since the inspection library code may differ depending on the inspection machine even with the same part product number, the inspection library number has the inspection machine number as an item, and the priority use number, the part shape code, the inspection determination condition, and the inspection algorithm number are registered. In this case, the operator may add the item if it differs from factory to factory. Moreover, since the determination conditions and the inspection algorithm differ depending on the mechanism and function of the inspection machine, numerical values corresponding to the inspection machine are used.
[0026]
Next, the processing flow of the embodiment will be described with reference to FIGS.
[0027]
FIG. 3 illustrates the first step of the present invention. In S1, determination conditions and an inspection algorithm corresponding to the library code are acquired from each inspection machine. The data acquired in S2 is registered in the inspection library database. In S3, statistical processing of the inspection determination condition and the inspection algorithm is performed for each part, and a priority is given to the same inspection machine code. In S4, the processing result is reflected in the inspection library management database and registered again. The priorities may be given when a new inspection library is acquired from the inspection machine or manually at an arbitrary time. In addition, the priority order and the attributes of the inspection library management database can be edited, deleted, changed, added, and the like.
[0028]
FIG. 4 illustrates the second to third steps of the present invention. After specifying the board to be inspected in S5, one part part number corresponding to the inspection position to be inspected is searched from the inspection position database in S6. In step S7, the part shape code and the part shape attribute are searched from the part shape database using the part number as a key. In S8, using this part shape code as a key, an inspection library code having a higher priority use number is searched from the inspection library management database. At this time, an arbitrary priority use number may be selected at the operator's discretion. If the inspection library code can be searched in S9, the inspection position and the library code corresponding to the inspection position are output to the inspection machine in S11. If the inspection library code cannot be searched, a similar component shape attribute is used in S10. The part shape code is searched from the part shape database, and the part shape code is obtained. In step S8, an inspection library code having a high priority use number is searched using the part shape code as a key. In step S11, the library corresponding to the inspection position and the inspection position is searched. Output code. As a search method in S10, a search may be made for a part within the allowable range of the external dimensions of the part, or a search for parts having the same number of lead parts.
[0029]
The search method is set in advance according to the characteristics of the inspection machine. S6 to S11 are repeated for all part numbers.
[0030]
【The invention's effect】
As described above, according to the present invention, an inspection library including the inspection determination condition and inspection algorithm corresponding to the library code is acquired from each inspection machine, registered in the inspection library management database, and statistically processed to obtain the same inspection. Prioritize the machine library code, re-register it in the inspection library management database, and inspect with high priority by the part shape code obtained using the part number corresponding to the inspection position of the board to be inspected as a key Since the library code is searched and the library code corresponding to the inspection position is output, it is possible to create the inspection library code including the inspection judgment conditions and inspection algorithm of the inspection machine in a short time. In addition, variations in inspection judgment conditions and inspection algorithms by the operator are eliminated, and inspection accuracy is improved. There inspection is possible. In addition, since data can be created even if there is no actual product such as a prototype board, inspection data can be created in advance, and data creation work can be made more efficient.
[Brief description of the drawings]
FIG. 1 is a configuration diagram of an inspection data creation method according to an embodiment of the present invention.
FIG. 2 is a database configuration diagram according to an embodiment of the present invention.
FIG. 3 is an explanatory diagram showing a flow of a first step in the same embodiment.
FIG. 4 is an explanatory diagram showing a flow of second and third steps in the embodiment.
FIG. 5 is a diagram illustrating inspection of a printed circuit board.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Inspection position database 2 Component shape database 3 Inspection library management database 4 Inspection library statistical process 5 Library creation process 6 Inspection machine group 7 Inspection machine 8 Printed circuit board 9 Electronic component 10 Pad 11 Solder 12 Judgment conditions

Claims (5)

Inspection conducted an inspection location database and component shape database search results in a plurality of inspection machines are output is the library creation process, the inspection of printed circuit board with a test library management database to centrally manage the library of the plurality of inspection machines A method for creating machine data,
Wherein the plurality of inspection determining material from the inspection machine, the inspection algorithm, and obtains the test library containing an inspection machine code, registered in the inspection library management database, statistical processing library code of the same part number, prioritizing A first step of re-registering in the inspection library management database; a second step of obtaining an inspection library code having a higher priority from the inspection library management database using the part shape code obtained from the inspection position database and the part shape database as a key; If there is no part shape code in the previous process, a similar part is searched from the part dimension information corresponding to the part number, the part shape code is obtained, an inspection library code is obtained using this shape code as a key, and an inspection position And the third work that outputs the library code corresponding to the inspection position Made, the first step, an inspection determination criteria corresponding to the library code from said plurality of inspection machines to obtain a test library comprising a checking algorithm, and said inspection machine code, registered in the inspection library management database, A method for creating inspection data, wherein statistical processing of inspection determination conditions and inspection algorithms is performed for each part number, priorities are assigned to inspection machine codes, and re-registration is performed in an inspection library management database .   In the second step, the board to be inspected is specified, the part part number corresponding to the inspection position is searched from the inspection position database, the part shape code is searched from the part shape database using the part part number as a key, and the part shape is searched. 2. The test data creation method according to claim 1, wherein a test library code having a higher priority is searched from the test library management database using the code as a key.   In the third step, if the inspection library code can be searched in the second step, the inspection position and the library code are output. If the inspection library code cannot be searched, a similar part shape code is obtained from the part shape database, and the part shape code is obtained. 2. The test data creation method according to claim 1, wherein a test library code having a higher priority is searched from a test library management database as a key, and a test position and a library code are output. Inspection location database, a substrate ID, and the inspection position, and a part number, component shape database, and Part No., manages and component shape code, the test library management database, and inspection machine number, and the component shape code , an inspection determination condition, and manages the inspection algorithm number, and a priority use numbers, each attribute, editing and, delete and change the, according to claim 1, wherein the can be added and the Inspection data creation method.   The inspection data creation method according to claim 1, wherein the inspection library management database can be charged according to usage.

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