JP4541172B2 - Information management system in component mounting line - Google Patents

Description

  The present invention relates to an information management system for managing and displaying various information on a component mounting line for mounting electronic components on a circuit board.

  Conventionally, a soldering device (or dispenser), a mounting device, a reflow furnace, etc. are arranged in a line to form a production line (component mounting line), and the circuit board is transported through each of these devices and then on the substrate. Electronic components are mounted on the board.

  In this type of production line, an inspection device is provided on the downstream side of each of the above devices, and it is necessary when it is determined that there is a processing defect by inspecting the processing (work) content applied to the circuit board. Accordingly, the line of the substrate is dropped and the inspection result is fed back and reflected in the processing of the next substrate.

In addition, each circuit board is provided with identification information such as a barcode, and each inspection device reads this identification information and transmits it to the information management device (high-order computer) together with the inspection result, and stores (stores) it. An inspection result in the apparatus is also centrally managed in the information management apparatus (for example, Patent Document 1).
JP-A-5-225202

  According to the information management system according to Patent Document 1 in which inspection results in the inspection apparatus for each circuit board are centrally managed by the information management apparatus, if a processing failure occurs on the board, the inspection stored in the information management apparatus By analyzing the result, it becomes possible to analyze the cause of the defect.

  However, in the information management system such as Patent Document 1, since the analysis and evaluation of the cause of failure is performed based only on the inspection result of each inspection apparatus, it is not always easy to accurately identify the cause of failure, and the reliability It was difficult to quickly obtain highly reliable analysis results. Therefore, there is still room for improvement in this respect.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to enable more accurate and quick analysis of a cause of a defect in a component mounting line.

In order to solve the above problems, an information management system of the present invention has a plurality of processing devices including at least a component mounting device among a paste application device, a component mounting device, and a reflow device, and is provided downstream of each processing device. , An information management system in a component mounting line equipped with an inspection device for inspecting the board based on image recognition, in which each board is identified with the inspection result of each inspection device and the image information used for the inspection It stores together with possible identification information, and includes at least maintenance-related information and error-related information among setting conditions related to processing of each processing device, maintenance-related information of each processing device, error-related information of each processing device, and various histories related to processing. A database that stores production-related information that is information, and information that is stored in this database Display means capable of surface display, specification means capable of specifying a target substrate on which information is to be displayed by the display means based on the identification information, and of the data stored in the database, the substrate specified by the specification means The inspection result and the image information by each inspection apparatus are displayed in the same display screen of the display means, and the production related information of each processing apparatus is displayed in the same display screen together with the inspection result and the image information. Display control means.

  According to this configuration, the inspection result of each inspection apparatus and the image information used for the inspection are accumulated in the database and managed centrally. Then, when the operator specifies the substrate by the specifying unit, the display control unit displays the inspection result and the image information in each inspection apparatus of the substrate in the same display screen by the display unit. As a result, the operator can analyze the cause of the processing failure and the like in a multifaceted manner while confirming the inspection result and image information in each inspection apparatus on the same display screen. In particular, since the production control information of each processing device is also displayed in the same display screen by the display control means, the operator can analyze the cause of the processing failure or the like while referring to the production related information. Multifaceted analysis can be performed.

  Further, the display control means is configured to display information on a substrate processed immediately before or immediately after the substrate together with information on the substrate specified by the specifying means in the same display screen. (Claim 2).

  According to this configuration, information such as inspection results regarding a plurality of substrates processed in succession is displayed in the same display screen by the display control means. Therefore, the operator can follow-up the processing status of each substrate processed continuously afterwards.

  The information management system further includes an operation unit for scrolling information displayed on the display unit, and the display control unit includes a plurality of substrates processed continuously based on the operation of the operation unit. It is preferable that the information is scroll-displayable (claim 3).

  According to this configuration, as necessary, information on the continuously processed substrates is scroll-displayed in the display screen based on the operation of the operation means by the operator. For this reason, it is possible to analyze the cause of defects while efficiently displaying information on a plurality of substrates processed continuously using a limited display screen.

  On the other hand, in the above information management system, the display control means may display information on a plurality of substrates specified by the specifying means within the same display screen.

  According to this configuration, information such as inspection results regarding a plurality of substrates specified by the specifying unit is displayed on the same display screen by the display control unit. Therefore, regardless of the processing order of the substrates, it is possible to display information on any of a plurality of substrates and analyze the cause of the defect.

According to the information management system according to the first to fourth aspects of the present invention, the production result information such as the inspection result in each inspection device of the substrate, the image information used for the inspection, and the maintenance related information of each processing device are displayed in the same display screen. Therefore, it is possible to analyze the cause of the processing failure in a multifaceted manner by referring to the production related information while comparing the inspection results and image information of the respective inspection apparatuses. Therefore, a more reliable analysis result can be obtained as compared with a conventional system of this type that analyzes the cause of processing failure based only on the inspection result of the inspection apparatus. In particular, according to the information management system according to claims 2 to 4, since information on a plurality of substrates can be displayed in the same display screen, the processing status of the substrates can be monitored afterwards to prevent the processing failure. The cause of occurrence can be detected more accurately and promptly.

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

  FIG. 1 schematically shows a component mounting line to which the information management system of the present invention is applied. This production line includes a loader (not shown), a solder printing device (or dispenser) 1, a printing inspection device 2, two types of mounting devices 3A and 3B, a mounting inspection device 4, a reflow furnace 5, a soldering inspection device 6, and an unloader. A loader (not shown) is provided in a row, and these are connected to each other by a conveyor 7. And while conveying a circuit board (henceforth only a board | substrate) with the conveyor 7, while performing each process of solder printing, component mounting, and reflow sequentially, the board | substrate after each process is test | inspected by the inspection apparatus 2,4,6. It is configured as follows.

  Although not shown, each inspection device 2, 4, 6 includes a head on which a CCD camera is mounted, a driving device for moving the head in a plane, and the like. Each process is inspected based on the data. Specifically, the print inspection apparatus 2 inspects for print misalignment, and the mounting inspection apparatus 4 and the reflow furnace 5 inspect for component misalignment. .

  Each of the devices 1 to 6 is an autonomous device on which a control device is mounted, and the operation of each device is individually driven and controlled by the respective control device. To 6 (control device) are connected to the central management device 8 (database) online, and various data are centrally managed by the central management device 8 and the central management device 8 and each device 1. Necessary data is transmitted to and received from 6 to 6 (control device).

  FIG. 2 is a block diagram illustrating an example of the configuration of the central management device 8.

  As shown in the figure, the central management device 8 has a control unit main body 10 for controlling its operation. The control unit main body 10 includes a CPU 12 that executes logical operations, a ROM 13 that stores various programs for controlling the CPU 12 in advance, a RAM 14 that temporarily stores various data during operation of the apparatus, an HDD 15, and an I / O controller. (IOC) 16 and the like, and these CPUs 12 are connected to each other via an internal bus.

  The HDD 15 stores (stores) various application software programs and various types of information related to the production of the devices 1 to 6 such as board data, component data, printing and mounting position data, and reflow temperature data. ing.

  The IOC 16 is connected to an input means 18 such as a keyboard and a mouse, and a display means 19 such as a CRT monitor or an LCD monitor, and the devices 1 to 6 are connected. The entire management apparatus is controlled by receiving predetermined instruction information input and various operation signals from the apparatuses 1 to 6.

  The control unit main body 10 is further provided with an external storage device 17 such as a magneto-optical disk, and various information such as production histories in the devices 1 to 6 is stored (stored) in the external storage device 17. Has been. Specifically, the inspection results of the inspection apparatuses 2, 4 and 6 for each substrate, inspection information such as image data (image information) of the substrate used for each inspection, and each processing apparatus (apparatus 1, 3A, 3B, 5). ), Information on maintenance, etc. are stored.

  Of the information stored in the external storage device 17, the inspection information is automatically transmitted from each inspection device 2, 4, 6 during operation of the component mounting line, and sequentially stored in the external storage device 17 together with the identification information of each board. The The substrate identification information is written for each substrate, for example, as a bar code or a QR code, and is read at the same time as the image recognition of the substrate in each of the inspection devices 2, 4 and 6, and the central management device together with the inspection result and image data 8 is transmitted. The error-related information, maintenance-related information, and the like are transmitted to the central management device 8 when the operator operates the input means 18 such as a keyboard provided in each of the devices 1 to 6 and inputs the error content and the maintenance content. It is like that.

  FIG. 3 is a block diagram illustrating a functional configuration for causing the display unit 19 to display an image of information stored in the external storage device 17 among the functional configurations included in the control unit main body 10.

  As shown in the figure, the control unit main body 10 has a main control unit 21 and a display control unit 22 as the functional configuration described above.

  The main control unit 21 comprehensively controls various processes for image display. The display control unit 22 displays a predetermined screen on the display unit 19 according to a program stored in advance, and is stored in the external storage device 17 in response to a display instruction by an operation of the input unit 18 by an operator. Display control is performed to display various information on the display means 19. Specifically, according to the input of the identification information of the substrate, each inspection result of the substrate specified by this identification information and the substrate produced before and after (immediately before and immediately after) and the inspection image (image data) at that time, Further, when there is maintenance-related information that can be displayed, the information is displayed on the same screen of the display means 19. In the present embodiment, the input means 18 corresponds to a specifying means according to the present invention.

  FIG. 4 shows an example of the display screen of the display means 19 based on the control of the display control unit 22.

  As shown in this figure, the display screen 30 is set to display spaces 301 to 306 corresponding to the respective devices 1 to 6 in order from the right side.

  The input identification information 31 (n in the illustrated example) is displayed at the left end of the middle stage of the screen 30, and each inspection of a substrate corresponding to the identification information 31 (a substrate with identification information n; hereinafter referred to as a designated substrate). Inspection images and inspection results in the devices 2, 4 and 6 are displayed side by side.

  Specifically, the inspection images P1 to P3 of the print inspection apparatus 2, the mounting inspection apparatus 4, and the soldering inspection apparatus 6 are displayed side by side in the corresponding inspection spaces 302, 304, and 306 in order from the right side, Each inspection result 32 is displayed immediately below each inspection image P1 to P3. The illustrated example is an example in which the integrated circuit chip IC1, chip resistor R1, and chip capacitor C1 are mounted as electronic components. Therefore, the inspection image P1 is inspected immediately after solder is applied to the land on the board. Image P2 is an image immediately after the component mounting process is completed, and inspection image P3 is an image showing the board immediately after the reflow process is completed.

  Further, in the upper part of the screen 30, the inspection images P1 to P3 and the inspection result 32 of the board (the board with the identification information n + 1) produced immediately after the designated board (the board with the identification information n + 1) are displayed side by side in the same manner. Further, in the lower part of the screen 30, the inspection images P1 to P3 and the inspection result 32 of the board (the board whose identification information is n-1) produced immediately before the designated board are displayed side by side in the same manner. As a result, the inspection images P1 to P3 and the inspection results in the inspection apparatuses 2, 4, and 6 of the three substrates continuously produced including the designated substrate are displayed in the same display screen 30.

  The screen 30 further displays information related to maintenance of the solder printing apparatus 1, the mounting apparatuses 3 </ b> A and 3 </ b> B and the reflow furnace 5 (referred to as maintenance related information 34) and information related to errors (error related information 35).

  Of these displays 34 and 35, maintenance-related information 34 is various information related to maintenance such as maintenance contents and maintenance time, and is display spaces 301, 303, and 305 corresponding to the apparatus on which maintenance has been performed. And it is displayed in the position corresponding to the implementation time. For example, in the solder printing apparatus 1, when there is a maintenance stop period between the processing of the designated board (n) and the next board (n + 1), the display pace 301 of the solder printing apparatus 1 Maintenance related information 34 is displayed between the middle display portion and the upper display portion (in the example shown, maintenance related information 34 "20 minutes stop for line stop" is displayed).

  On the other hand, the error-related information 35 is various information relating to errors such as error contents and countermeasures, and corresponds to the board on which the error has occurred and corresponds to the inspection apparatuses 2, 4, and 6 in which the error has been detected. (In the example shown in the figure, a mounting error of the chip resistor R1 has occurred on the designated substrate (n), so that it is processed by manually mounting it ("R1 "Hand-mounted") is displayed in the display space 304).

  Next, an example of the display operation of the display means 19 based on the control of the control unit body 10 will be described based on the flowchart of FIG.

  First, when the central management device 8 is activated, a predetermined menu screen is displayed on the display means 19 by the display control unit 22 (step S1). On the menu screen, menus such as various calculations and displays that can be executed in the central management device 8 are displayed so as to be selectable by operating the input means 18. At this time, for example, a selection column of “process analysis screen display” for displaying various information of the external storage device 17 is displayed as one of the menus.

  Next, it is determined whether or not “display process analysis screen” is selected from the menu. If YES is determined here, an input screen of identification information for specifying the substrate is displayed, and further, the identification information is displayed. The presence / absence of input is determined (steps S2 to S4). When YES is determined here, that is, when the operator operates the input means 18 to input the identification information of the board, the display control section 22 displays a screen as shown in FIG. Step S5). Specifically, the inspection image and the inspection result of each inspection device 2, 4 and 6 of the specified substrate (the substrate specified by the input identification information) and the substrate produced before and after that are within the same display screen. When the maintenance is performed in each of the devices 1, 3A, 3B, and 5 or an error occurs in each of the inspection devices 2, 4, and 6, the maintenance-related information 34 and the error-related information 35 are displayed. Are also displayed in this display screen.

  Next, it is determined whether or not there is a screen switching input (step S6). Although not shown, for example, a “screen switching” selection field is displayed in the display screen. If the operator selects this field by operating the input means 18, YES is selected in step S 6. In this case, the process proceeds to step S3, and an input screen for identification information is displayed. Accordingly, when the operator inputs another identification information again, information such as an inspection image regarding another substrate is displayed on the display means 19.

If NO is determined in step S6, it is further determined whether or not there is an end input (step S7). Although not shown, in the display screen of step S5, in addition to the “screen switching” field, a “display end” field is displayed. The operator operates the input means 18 to select this field. If so, YES is determined in the step S7, and in this case, the step S1
The menu screen is displayed on the display means 19. If NO is determined in step S7, the process proceeds to step S6.

  According to the component mounting line as described above, the inspection results and inspection images of the respective inspection devices 2, 4 and 6 of each board are accumulated in the central management device 8, and the operator can use the central management device 8 when necessary. By operating the input means 18 and designating a desired substrate, the inspection results and inspection images of the respective inspection devices 2, 4, 6 of the substrate can be displayed on the same display screen of the display means 19. Therefore, when a processing failure occurs, the working status of each process of the board, that is, the solder printing device 1, the mounting devices 3A and 3B, and the reflow are compared while comparing the inspection images displayed on the same display screen. By confirming each processing state of the furnace 5, the cause of the failure can be analyzed in many ways.

  In particular, in this central management device 8, in addition to the substrate specified by the operator, the inspection results and inspection images of the substrates produced before and after that are displayed on the same display screen, and further, the solder printing device 1, the mounting device 3A, Since the maintenance related information 34 and the error related information 35 of the 3B and the reflow furnace 5 are also displayed in the display screen, the operator can install the solder printing apparatus 1 and the mounting related to the board produced continuously. The processing status in the apparatuses 3A, 3B and the reflow furnace 5 can be followed up with reference to the maintenance information and error information of the apparatuses 1, 3A, 3B, 5.

  Therefore, when a processing failure or the like occurs, the failure factor can be analyzed more than the conventional information management system of this type configured to be able to analyze the failure factor based only on the inspection result. It becomes possible to carry out accurately and promptly.

The above-described component mounting line is an embodiment of a component mounting line to which the information management system according to the present invention is applied, and the specific configuration thereof can be changed as appropriate without departing from the gist of the present invention. It is. For example, the following may be used.
(1) In the embodiment, as shown in FIG. 4, in the same display screen 30 of the display means 19, the inspection images and inspection results of the substrates including the designated substrate and produced before and after are displayed. You may display like this.

  a) The designated board is displayed on the upper (or lower) stage, and the inspection image or the like of one or more boards continuously produced before (or after) the designated board is displayed below (or above) the designated board. .

  b) Display inspection images of a plurality of substrates arbitrarily designated by the operator as designated substrates.

  c) Only the inspection image of the specified board is displayed.

In short, what is necessary is just to display the inspection result and the inspection image (image information used for the inspection) in each inspection device 2, 4 and 6 of the designated substrate.
(2) In the embodiment, the inspection images and the like of the inspection apparatuses 2, 4, 6 are displayed side by side, but may be displayed vertically.
(3) You may comprise so that the test | inspection image etc. of the board | substrate displayed on the display means 19 may be scrolled using operation means, such as a mouse | mouth. Specifically, the display control unit 22 displays a scroll bar in the display screen 30 and operates it with a mouse or presses the “PageUp” and “PageDown” keys on the keyboard to continuously produce the substrates. The inspection image or the like may be scroll-displayed. According to this configuration, it is possible to analyze the cause of a defect or the like while efficiently displaying information such as inspection images regarding a plurality of substrates processed continuously using a limited display screen.
(4) In the embodiment, the maintenance-related information 34 and the error-related information 35 of the solder printing device 1, the mounting devices 3A and 3B, and the reflow furnace 5 are displayed as production-related information. In addition to this information, Alternatively (or in place of this information), setting conditions regarding the processing of the devices 1, 3A, 3B, and 5 may be displayed. For example, in FIG. 4, information such as the mask number used for the printing process is displayed in the display space 301 of the mounting apparatuses 3 </ b> A and 3 </ b> B in a location (stage) corresponding to each substrate in the display space 301 of the solder printing apparatus 1. Information on the nozzle number and setup (arrangement of component supply devices) used for each substrate), information on temperature, etc. in the display space 305 of the reflow furnace 5 corresponding to each substrate. You may make it display. By doing so, it becomes possible to analyze the cause of failure and the like while taking these setting conditions into consideration, so that the cause analysis can be performed more smoothly.
(5) In the embodiment, the entire inspection image of the substrate (including substrates produced before and after) specified by the operation of the input unit 18 is displayed. For example, the operation of the input unit 18 is further displayed. Thus, an inspection image of only a specific mounting point among the inspection images may be displayed. In this case, it is preferable to display the inspection image in an easily recognizable manner, for example, by enlarging it. This is useful when there is a problem with a specific mounting point of the board.

It is a schematic diagram which shows the component mounting line to which the information management system which concerns on this invention is applied. It is a block diagram which shows the control system of a central management apparatus. It is a block diagram which shows the function structure for displaying the image memorize | stored in the external memory | storage device among the function structures contained in a control part main body by a display means. It is a figure which shows an example of the display control of the display means by a display control part. It is a flowchart which shows an example of the display operation of the display means based on control of a control part main body.

DESCRIPTION OF SYMBOLS 1 Cream solder printing apparatus 2 Printing inspection apparatus 3A, 3B Mounting apparatus 4 Mounting inspection apparatus 5 Reflow furnace 6 Soldering inspection apparatus 8 Central management apparatus 10 Control part main body 17 External storage device 18 Input means 19 Display means 21 Main control part 22 Display Control unit

Claims (4)

A component having a plurality of processing devices including at least a component mounting device among a paste coating device, a component mounting device, and a reflow device, and an inspection device for inspecting the substrate based on image recognition on the downstream side of each processing device An information management system for a mounting line,
The inspection results and the image information used for the inspection of each inspection apparatus for each substrate are stored together with identification information for identifying each substrate, setting conditions relating to the processing of each processing apparatus, maintenance-related information for each processing apparatus, A database for accumulating production-related information that is information including at least the maintenance-related information and error-related information among error-related information and processing-related various history of each processing device;
Display means capable of displaying information stored in the database on a screen;
A specifying unit capable of specifying a target substrate to be displayed by the display unit based on the identification information;
Of the data stored in the database, the inspection result and the image information by each inspection device of the substrate specified by the specifying means are displayed on the same display screen of the display means, and the inspection result and the image are displayed. An information management system for a component mounting line, comprising: display control means for displaying the production-related information of each processing apparatus together with information on the same display screen. In the information management system in the component mounting line according to claim 1,
In the component mounting line, the display control means displays the information on the board processed immediately before or after the board together with the information on the board specified by the specifying means in the same display screen. Information management system. In the information management system in the component mounting line according to claim 1 or 2,
Having an operation means for scrolling information displayed on the display means;
The information management system in a component mounting line, wherein the display control means is configured to be able to scroll-display the information of a plurality of substrates processed continuously based on the operation of the operation means. In the information management system in the component mounting line according to claim 1,
The information management system in a component mounting line, wherein the display control means displays information on a plurality of boards specified by the specifying means on the same display screen.

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