WO2015118632A1

WO2015118632A1 - Electronic component mounting system

Info

Publication number: WO2015118632A1
Application number: PCT/JP2014/052652
Authority: WO
Inventors: 道彦田島; 大輔加藤
Original assignee: 富士機械製造株式会社
Priority date: 2014-02-05
Filing date: 2014-02-05
Publication date: 2015-08-13
Also published as: JP6294896B2; JPWO2015118632A1

Abstract

A system is provided with a common data server connected via a communication network, and a plurality of component mounting lines. Each of component mounting lines comprises a mounting device, a processing device, and an individual data storage unit. The mounting device has at least one component feeder attached thereto. The processing device executes identification processing which identifies electronic components housed by the component feeder attached to the mounting device. The individual data storage unit accesses the common data server via the communication network at predetermined timings, and stores backup data for feeder component data. In addition, in the identification processing, the processing device (1) uses the feeder component data stored on the common data server when the common data server can be accessed via the communication network, and (2) uses the backup data stored on the individual data storage unit when the common data server cannot be accessed via the communication network.

Description

Electronic component mounting system

The technology disclosed herein is a system for mounting electronic components on a circuit board, and particularly relates to a system using a communication network.

Japanese Unexamined Patent Application Publication No. 2011-171482 discloses a system for mounting electronic components on a circuit board. This system includes a parts feeder, a data server, a check server, and a mounting device. The data server, the check server, and the mounting device are communicably connected to each other via a communication network. The data server stores feeder-component data describing a combination of a plurality of component feeders and electronic components accommodated therein. When the component feeders are attached to the mounting device, identification information of the feeders is transmitted to the check server. The check server uses the received feeder identification information and the feeder-component data stored in the common data server to identify the electronic component accommodated by the component feeder attached to the mounting apparatus. Accordingly, the system can determine whether or not the electronic component actually provided to the mounting device matches the electronic component to be provided to the mounting device.

The conventional system using the communication network has a problem that when a failure occurs in the communication network, the electronic component housed in the component feeder attached to the mounting device cannot be specified, and the operation cannot be continued. . The technology disclosed in this specification aims to solve or reduce such problems.

側面 One aspect of this technology provides a system for mounting electronic components on a circuit board. This system includes a plurality of component feeders, a common data server, a plurality of component mounting lines, and a communication network. Each component feeder accommodates a plurality of electronic components. The common data server stores feeder-component data describing a combination of a plurality of component feeders and electronic components accommodated therein. Each component mounting line mounts an electronic component on a circuit board using at least one of a plurality of component feeders. The communication network connects each of the plurality of component mounting lines so that they can communicate with the common data server. Each component mounting line includes a mounting device and a processing device. At least one component feeder is attached to the mounting device, and an electronic component supplied by the at least one component feeder is mounted on the circuit board. The processing device executes a specifying process for specifying an electronic component accommodated in at least one component feeder attached to the mounting device.

In this system, each component mounting line further has individual data storage. The individual data storage accesses the common data server through the communication network at a predetermined timing, and stores the backup data of the feeder-part data. Then, in the specific process, the processing device uses (1) the feeder part data stored in the common data server when (1) the common data server is accessible via the communication network, and (2) the communication network When the common data server is inaccessible via the backup data, the backup data stored in the individual data storage is used.

According to the above configuration, even when a failure occurs in the communication network, the system uses the backup data stored in the individual data storage to identify the electronic component accommodated in at least one component feeder attached to the mounting device. can do. Therefore, the system can continue its operation even when a failure occurs in the communication network.

The figure which shows typically the structure of the electronic component mounting system of an Example. The figure which shows typically an example of a structure of the mounting apparatus in the said system. Sectional drawing in the III-III line | wire in FIG. The flowchart which shows a component collation process with FIG. FIG. 5 is a flowchart showing the component matching process together with FIG. 4. The figure which shows typically the structure of feeder-part data. The figure which shows the structure of feeder position data typically. The figure which shows typically the structure of feeder on a device-part data.

In one embodiment of the present technology, it is preferable that the individual data storage periodically accesses the common data server at the first frequency and stores the backup data of the feeder-part data at the predetermined timing. Here, the first frequency is not particularly limited. For example, the frequency may be once a day or several days, once a hour, or once a second. However, the individual data storage can access the common data server at the timing when the feeder data of the common data server is updated instead of or in addition to accessing the common data server periodically. The backup data described above may be stored. Alternatively, the individual data storage may be configured to access the common data server at a timing when receiving an instruction from an operator or an arbitrary device. The timing at which the individual data storage accesses the common data server can be variously determined.

In one embodiment of the present technology, it is preferable that each of the plurality of component mounting lines further includes a storage device that stores on-device feeder-component data describing an electronic component specified by the processing device. In this case, it is preferable that the individual data storage is connected to the storage device so as to be communicable, and performs supplementary processing for adding at least part of the on-device feeder-part data stored in the storage device to the backup data. . In this case, it is preferable that only the data not included in the backup data is selectively added to the backup data in the complementing process.

In the above-described embodiment, it is preferable that the individual data storage executes the complementing process when the processing device fails to access the common data server. In addition to or instead of this, it is also preferable that the individual data storage executes the complementing process when the individual data storage fails to access the common data server. In addition to or instead of this, it is also preferable that the individual data storage periodically executes the complementing process at the second frequency. In this case, it is preferable that the second frequency (that is, the frequency of the complementing process) is higher than the first frequency (that is, the frequency of the backup). However, the complementing process is not limited to the above timing, and can be performed at various other timings.

In an embodiment of the present technology, it is preferable that each of the plurality of component mounting lines further includes an interface for acquiring identification information of an electronic component accommodated in a component feeder attached to the mounting device. In this case, it is preferable that the individual data storage executes the second supplement processing for supplementing the backup data using the identification information acquired by the interface. For example, the interface is not particularly limited, but may be a bar code, a two-dimensional code, a magnetic tape or IC chip reader, a touch panel, or a keyboard.

In one embodiment of the present technology, each of the plurality of component mounting lines further includes a determination device that determines whether the electronic component identified by the processing device matches the electronic component to be provided to the mounting device. It is preferable to provide. According to such a configuration, it is possible to determine whether or not an electronic component actually provided to the mounting device is appropriate and prevent an erroneous electronic component from being mounted on the circuit board. .

In one embodiment of the present technology, it is preferable that the mounting device automatically acquires identification information of a component feeder attached to the mounting device and transmits the acquired identification information to the processing device. In this case, it is preferable that the component feeder has an ID holding unit that stores identification information, and when the component feeder is attached to the mounting device, the mounting device reads the ID holding unit.

In the various embodiments described above, the processing device and the individual data storage may be configured by a single computer, or may be configured by a plurality of computers and their associated devices. Alternatively, at least a part of the processing device and the individual data storage may be configured using a part of a computer or other electrical element included in the mounting device.

Referring to the drawings, an electronic component mounting system 10 (hereinafter, system 10) of an embodiment will be described. The system 10 is an example of a production system, and is a production system that produces a component integrated board (the circuit board 2 after a plurality of electronic components are mounted) by mounting a plurality of electronic components on the circuit board 2. is there. As shown in FIG. 1, the system 10 includes a plurality of component feeders 12, a common data server 20, a system processing device 30, a plurality of component mounting lines 40, and a communication network 80.

The component feeder 12 is a device that supplies electronic components to be mounted on the circuit board 2 in the component mounting line 40. The component feeder 12 can accommodate a plurality of electronic components. Usually, each component feeder 12 is loaded with a single type of electronic component. However, some or all of the component feeders 12 may accommodate two or more types of electronic components. Typically, the electronic component is loaded into the component feeder 12 outside the component mounting line 40 (that is, offline), and the component feeder 12 after the electronic component is loaded into any of the component mounting lines 40. Provided. The specific configuration of the component feeder 12 is not particularly limited. For example, the component feeder 12 may be a tape feeder that accommodates a plurality of electronic components 4 on a winding tape, or may be a tray feeder that accommodates a plurality of electronic components 4 on a tray, It may be a bulk type feeder that accommodates a plurality of electronic components in a container at random.

Identification information is assigned to each component feeder 12. Thereby, the location of the component feeder 12, the electronic component to be accommodated, and other information can be managed for each component feeder 12. Each component feeder 12 includes an ID holding unit 12a that holds its own identification information. The ID holding unit 12a is not particularly limited, and may be, for example, one or more of a memory, an RFID chip, a two-dimensional code, and a barcode.

The common data server 20 is a device that stores electronic data, and can store various types of information used by the system 10. For example, the common data server 20 includes job data describing the type and number of component integrated boards to be produced by the system 10 and a production program describing the number, type, position and order of electronic components to be mounted on the circuit board 2. Data can be stored. Here, the production program data is prepared for each production item (that is, for each type of component integrated board). The common data server 20 is communicably connected to the system processing device 30. The system processing device 30 is connected to a computer including a display and a user interface. An operator of the system 10 can add, confirm, edit, and delete data with respect to the common data server 20 using the system processing device 30.

The common data server 20 can further store feeder part data. As shown in FIG. 6, the feeder-part data is data describing a combination of a plurality of part feeders 12 and electronic parts accommodated therein. The feeder-part data in the present embodiment is not particularly limited, but the identification information (for example, identification information of the accommodated electronic part (for example, “FD0001”, “FD0002”)) is associated with the identification information (for example, “FD0001”, “FD0002”) of each part feeder 12. “P012”, “P202”). The feeder-part data is updated using, for example, the system processing device 30 when an electronic part is loaded into the part feeder 12. In this case, the system processing apparatus 30 preferably includes a reader (for example, a two-dimensional code reader) that reads the ID holding unit 12a of the component feeder 12.

Next, the plurality of component mounting lines 40 will be described. Each component mounting line 40 is communicably connected to the common data server 20 and the system processing device 30 via a communication network 80. Each component mounting line 40 includes at least one mounting device 52. At least one mounting device 52 is arranged in series with other substrate working devices such as a solder printing device 54 and a substrate inspection device 56 along a conveyance path 50 for conveying the circuit board 2. At least one component feeder 12 is detachably attached to the mounting device 52, and an electronic component supplied by the at least one component feeder 12 is mounted on the circuit board 2. Therefore, it is necessary to provide the mounting device 52 with an electronic component corresponding to the production item, that is, it is necessary to attach an appropriate component feeder 12 according to the production item.

Referring to FIGS. 2 and 3, although not particularly limited, the configuration of the mounting device 52 will be described. As shown in FIGS. 2 and 3, the mounting device 52 typically includes a feeder holding unit 104, a mounting head 106, a head moving device 108, a substrate conveyor 110, a control device 112, and a touch panel 114. Prepare. A plurality of component feeders 12 are detachably attached to the feeder holding unit 104. The mounting head 106 picks up the electronic component 4 supplied by the component feeder 12 and mounts the electronic component 4 on the circuit board 2. At this time, the head moving device 108 moves the mounting head 106 with respect to the component feeder 12 and the circuit board 2. The board conveyor 110 constitutes a part of the conveyance path 50 of the circuit board 2 (see FIG. 1), and carries in, supports, and carries out the circuit board 2.

The control device 112 is configured using a computer including a CPU and a storage device. The control device 112 controls the operation of each part of the component feeder 12 and the mounting device 52 based on, for example, a production program. Here, when the component feeder 12 is attached to the feeder holding unit 104, the control device 112 in the present embodiment is electrically connected to the ID holding unit 12a (for example, a memory) of the component feeder 12, and the component feeder 12 is connected. Identification information can be obtained. The touch panel 114 is a display device that provides various types of information to the worker, and a user interface that receives instructions and information from the worker. The specific configuration of the mounting device 52 described above is an example, and the configuration of the mounting device 52 can be changed as appropriate.

Each component mounting line 40 further includes a line processing device 60. The line processing device 60 is configured using a computer including a CPU and a storage device. The line processing device 60 is communicably connected to the common data server 20 and the system processing device 30 via the communication network 80. The line processing device 60 is connected to the mounting device 52, the solder printing device 54, and the board inspection device 56 in the component mounting line 40 so as to be communicable. For example, the line processing device 60 acquires data necessary for the mounting device 52 (and other devices 54 and 56) according to the production item from the common data server 20, and the mounting device 52 (and other devices 54). , 56). Also, various data can be acquired from the mounting device 52 (and other devices 54 and 56) and transmitted to the common data server 20.

The line processing device 60 can further execute a component matching process (see FIGS. 4 and 5) including a specifying process and a determining process. The specifying process here is a process of specifying the electronic component 4 accommodated in the component feeder 12 attached to the mounting device 52. The determination process is a process for determining whether or not the electronic component 4 specified by the specifying process matches the electronic component 4 to be provided to the mounting device 52 according to the production item. The specific process and the determination process will be described in detail later.

Each component mounting line 40 further includes an individual data storage 70. The individual data storage 70 is a device that stores electronic data, like the common data server 20. The capacity of the individual data storage 70 may be equal to or less than that of the common data server 20. The individual data storage 70 is communicably connected to the common data server 20 and the system processing device 30 via the communication network 80. The individual data storage 70 periodically accesses the common data server 20 via the communication network 80 at the first frequency, and stores part or all of the backup data (replicated data) stored in the common data server 20. Remember.

The data backed up by the individual data storage 70 includes at least feeder-part data (see FIG. 6), and preferably further includes at least one of job data and a production program. Further, the first frequency of executing the backup is not particularly limited, but may be from once / day (meaning once a day, the same applies hereinafter) to once / second. More preferably, it is between 1 time / 3 hours and 1 time / 1 minute, and more preferably between 1 time / 2 hours and 1 time / 30 minutes.

Next, with reference to FIG. 4 and FIG. 5, a component verification process executed by the line processing device 60 will be described. In each component mounting line 40, before the start of production operation, one or a plurality of component feeders 12 corresponding to the production items are attached to one or a plurality of mounting devices 52, whereby a plurality of types of electronic components 4 are arranged. Provided to the mounting device 52. At this time, the line processing device 60 identifies a plurality of types of electronic components 4 provided to the mounting device 52 by executing a component collating process described below, and determines the suitability thereof.

As shown in FIG. 4, first, the line processing device 60 acquires feeder position data (S12). As shown in FIG. 7, the feeder position data describes the mounting position and identification information of each component feeder 12. Here, “lane” in FIG. 7 means the attachment position of the component feeder 12 in the feeder holding unit 104. The feeder position data may be created by the mounting device 52 based on the identification information acquired by the mounting device 52 from the component feeder 12, or may be created by the line processing device 60.

Next, the line processing device 60 tries to access the common data server 20 via the communication network 80 (S14). When the access is successful (YES in S16), the line processing device 60 refers to the feeder-component data in the common data server 20 to the component feeder 12, that is, the mounting device 52 described in the feeder position data. A specifying process for specifying the electronic component 4 accommodated in the attached component feeder 12 is executed (S18). Thereby, on-device feeder-part data is created. As shown in FIG. 8, the on-device feeder-component data is data describing a combination of one or a plurality of component feeders 12 attached to the mounting device 52 and the electronic components 4 accommodated in these component feeders 12. is there.

Next, the line processing device 60 executes determination processing for determining whether or not the electronic component 4 specified in the specifying processing is the electronic component 4 to be provided to the mounting device 52. This determination processing can be performed with reference to the production program stored in the control device 112 of the common data server 20, the line processing device 60, or the mounting device 52, for example. If the result of the determination process is good, the line processing device 60 gives the mounting device 52 permission for production operation. On the other hand, if there is a problem in the result of the determination process, the production operation of the mounting device 52 is prohibited. In this case, the mounting device 52 displays information including the component feeder 12 that houses the inappropriate electronic component 4 and its mounting position on the touch panel 114. This prevents an inappropriate electronic component 4 from being mounted on the circuit board 2 in advance. Finally, on-device feeder-part data is stored or updated in the control device 112 of the line processing device 60 and the mounting device 52 (S22). The control device 112 recognizes the electronic component 4 accommodated in each component feeder 12 based on the on-device feeder component data, and controls operations of the mounting head 106, the head moving device 108, and other devices in the production operation.

On the other hand, when a failure has occurred in the communication network 80 and access to the common data server 20 has failed (NO in S16), the line processing device 60 accesses the individual data storage 70 instead of the common data server 20. (S102 in FIG. 5). As described above, the individual data storage 70 stores backup data including feeder part data. Therefore, the line processing device 60 can specify the electronic component 4 accommodated in the component feeder 12 using the backup data in the individual data storage 70.

However, as described above, since the backup by the individual data storage 70 is periodically performed at the first frequency (that is, a predetermined time interval), the backup data in the individual data storage 70 is stored in the common data server 20. Feeder-part data does not always match. That is, data newly registered in the feeder part data in the common data server 20 after the last backup by the individual data storage 70 is not included in the individual data storage 70. Therefore, even if the line processing device 60 refers to the backup data in the individual data storage 70, the line processing device 60 may not be able to identify the electronic component 4 of one or more component feeders 12.

Regarding the above problem, the line processing device 60 compares the backup data in the individual data storage 70 with the on-device feeder-part data stored in itself or the mounting device 52 (S104). If unregistered data that is not included in the backup data exists in the feeder data on the apparatus (YES in S106), the unregistered data is added to the backup data in the individual data storage 70. (S108). This process is referred to herein as a complement process. If the last specific processing by the line processing device 60 is performed between the last backup by the individual data storage 70 and the occurrence of a failure in the communication network 80, the on-device feeder created by the specific processing Data that is not included in the backup data of the individual data storage 70 may exist in the component data. Therefore, by executing the complementing process, the backup data in the individual data storage 70 can be brought closer to the feeder part data in the common data server 20.

Next, the line processing device 60 executes a specifying process for specifying the electronic component 4 accommodated in the component feeder 12 described in the feeder position data while referring to the backup data in the individual data storage 70 (FIG. 5). S110). This identification process is substantially equal to the identification process (S18) in FIG. However, even if the above-described complementing process is performed, an unregistered component feeder 12 may exist in the backup data. Therefore, an unknown component feeder in which the electronic component 4 cannot be specified among the component feeders 12 described in the feeder position data. 12 can occur.

In such a case (YES in S112), the line processing device 60 requests the operator to input data using, for example, the touch panel 114 of the mounting device 52 (S114). In this case, the worker can input the identification information of the electronic component 4 accommodated in the unknown component feeder 12 by using a user interface such as the touch panel 114 or the two-dimensional code reader. The input identification information of the electronic component 4 is added to the backup data in the individual data storage 70 together with the identification information of the component feeder 12. Thereafter, the line processing device 60 proceeds to the determination process (S20) shown in FIG. Subsequent processing (S20 and S22) is as described above, and thus description thereof is omitted.

As described above, when the line processing device 60 can access the common data server 20 via the communication network 80 in the specific processing (S20, S110), the feeder-part data stored in the common data server 20 is used. When the common data server 20 is inaccessible via the communication network 80, the backup data stored in the individual data storage 70 is used. With such a configuration, the line processing device 60 can perform the above-described specifying process and determination process even when a failure occurs in the communication network 80. Therefore, each component mounting line 40 can continue its operation.

In addition, in the line processing apparatus 60 of the present embodiment, the individual data storage 70 executes a complementary process for adding at least a part of the feeder-part data on the apparatus to the backup data stored by itself. According to such a configuration, the frequency of backup by the individual data storage 70 can be set to be relatively low, and the common data server 20 and the individual data storage 70 (particularly, common data to which a plurality of individual data storages 70 are connected). The load on the server 20) can be suppressed.

Although specific examples of the present invention have been described in detail above, these are merely examples and do not limit the scope of the claims. The technology described in the claims includes various modifications and changes of the specific examples illustrated above.

In the above-described embodiment, when the line processing device 60 fails to access the common data server 20, the individual data storage 70 performs a complementing process. However, in another embodiment, the individual data storage 70 may execute a complementing process when access to the common data server 20 fails. Alternatively, the individual data storage 70 may periodically execute the complementing process at the second frequency. In this case, it is preferable that the second frequency (that is, the frequency of the complementing process) be higher than the first frequency (that is, the frequency of the backup). Thereby, the frequency with which each individual data storage 70 accesses the common data server 20 can be reduced, and the burden on the common data server 20 can be suppressed.

In another embodiment, the line processing device 60 may execute only the specific process among the specific process and the determination process. When the line processing device 60 executes at least the specific process, the mounting device 52 recognizes the electronic component 4 accommodated in each component feeder 12 attached to itself and mounts the electronic component 4 on the circuit board 2. Driving can be performed.

The technical elements described in the present specification or drawings exhibit technical usefulness alone or in various combinations, and are not limited to the combinations described in the claims at the time of filing. In addition, the technology illustrated in the present specification or the drawings achieves a plurality of objects at the same time, and has technical utility by achieving one of the objects.

2: Circuit board 4: Electronic component 10: Electronic component mounting system 12: Component feeder 20: Common data server 30: System processing device 40: Component mounting line 52: Mounting device 60: Line processing device 70: Individual data storage 80: Communication Network 112: Control device 114: Touch panel

Claims

A plurality of component feeders each containing a plurality of electronic components;
A common data server storing feeder-part data describing a combination of the plurality of part feeders and electronic parts contained therein;
A plurality of component mounting lines for mounting electronic components on a circuit board using at least one of the plurality of component feeders;
A communication network for communicatively connecting each of the plurality of component mounting lines with the common data server;
Each of the plurality of component mounting lines is
A mounting device for mounting at least one of the plurality of component feeders and mounting an electronic component supplied by the at least one component feeder on a circuit board;
A processing device for performing processing for specifying electronic components contained in at least one component feeder attached to the mounting device;
An individual data storage for accessing the common data server via the communication network at a predetermined timing and storing backup data of the feeder part data;
In the specific process, the processing device uses (1) the feeder component data stored in the common data server when the common data server is accessible via the communication network, and (2) the When the common data server is inaccessible via a communication network, the backup data stored in the individual data storage is used.
A system for mounting electronic components on circuit boards.
The system according to claim 1, wherein the individual data storage periodically accesses the common data server at a first frequency as the predetermined timing.
Each of the plurality of component mounting lines further includes a storage device for storing feeder-component data on the device describing the electronic component specified by the processing device,
The individual data storage is communicably connected to the storage device, and performs supplementary processing for adding at least a part of on-device feeder-part data stored in the storage device to the backup data. Item 3. The system according to Item 1 or 2.
The system according to claim 3, wherein in the complementing process, only data not included in the backup data is selectively added to the backup data.
The system according to claim 3 or 4, wherein the individual data storage executes the complementing process when the processing device fails to access the common data server.
The system according to any one of claims 3 to 5, wherein the individual data storage executes the complementing process when it fails to access the common data server.
The system according to any one of claims 3 to 6, wherein the individual data storage periodically executes the complementing process at a second frequency.
The system according to claim 7, wherein the second frequency is higher than the first frequency.
Each of the plurality of component mounting lines further includes an interface for acquiring identification information of an electronic component accommodated in a component feeder attached to the mounting device,
The system according to any one of claims 1 to 8, wherein the individual data storage executes a second complementing process for complementing the backup data using the identification information acquired by the interface.
Each of the said several component mounting line is further provided with the determination apparatus which determines whether the electronic component which the said processing apparatus specified and the electronic component which should be provided to the said mounting apparatus correspond. The system according to any one of 1 to 9.