JP2019117627A - Production management system and production management method - Google Patents

Abstract

To provide a production management system capable of properly performing production management on each workpiece even when production is performed with the workpiece retained in a case capable of retaining plural workpieces.SOLUTION: A storage unit stores retention positions in a retention unit, which includes first and second cases capable of retaining plural workpieces, at which the restrictive workpieces including a first workpiece are retained, in association with workpiece IDs with which the respective workpieces are identified. For example, when the first workpiece retained at a first position in the first case is newly retained at a third position in the second case, information on the retention position associated with the workpiece ID in the storage unit is modified from the first position to the third position (step 4).SELECTED DRAWING: Figure 4

Description

  The present invention relates to a production management system and a production management method for managing process history in a production line in which a process is executed using a case capable of holding a plurality of works.

  Regardless of whether a production process is performed automatically by a robot or other production device at a production site such as a factory or manually by an operator, for example, the history of that process is recorded in a database for each production process. The thing is done.

  In addition, in this type of database utilization, for example, management of production history for each workpiece, not for each process, is performed so that processing history of processing or assembly for a specific workpiece can be referred to. Therefore, for example, in order to identify a specific work, a configuration is known in which an ID tag using a unique identification code (bar code) or a recording device such as an IC chip capable of storing small volume data is attached to each work. ing. When such an ID tag is used, an individual of a work can be identified by the ID tag, and for example, with respect to the specific work, information of production (process) history up to the previous process acquired from the database can be referred to. In that case, it is also possible to control to select a subsequent process, processing conditions, and the like based on the information of the referenced production (process) history.

  Although it is convenient if the ID tag can be directly applied to the workpieces passing through the process or the articles handled by the system, some articles can not be handled in such a manner. For example, since an ID tag can not be directly attached to a property such as a cell or a microorganism, a method is known in which an ID tag is attached to the container and process control, for example, management of culture history, etc. (Patent Document 1) . There is also known a configuration in which production information is collected on a pallet basis by applying an ID tag to the pallet when performing the same processing on a plurality of workpieces loaded on a pallet etc. on a pallet basis (patented) Literature 2).

  There is also known a configuration in which defect information of a workpiece such as an electronic component on a substrate as a product manufacturing unit is managed in association with a position on the substrate (Patent Document 3). Further, there is known a technique of managing work condition information for each of a plurality of work processes of a worker based on the worker and displaying the information in an overhead manner (Patent Document 4).

JP 2004-119 A Japanese Patent Laid-Open No. 2000-66705 JP 2001-273019 A JP 2001-84305 A

  Depending on the production line (system), a plurality of workpieces may be accommodated in pallets (cases or containers) and supplied, transported between processes, or carried out, regardless of the product type or not. Even in such a case, it is desirable to be able to manage the history information of the process and work for each individual work by the database. When using a process history database, it is conceivable to select a process for a specific work according to the process (history) information of the previous process stored in the database. In this case, if a worker intervenes in the process selection or if the manager or the like needs to confirm the progress of the process, it is necessary to be able to refer to the database information via, for example, a display output.

  According to the technique of Patent Document 1, since the history of the work (cell) is managed by the bar code of the container, the history management can be performed even for the property to which the ID tag can not be attached directly. However, Patent Document 1 is directed to a property such as a cell, and is configured to use one container for one work. Therefore, Patent Document 1 does not disclose how to manage the history of individual works when, for example, a plurality of works are held in one container. Further, in the technology of Patent Document 2, it is premised that the same processing is performed on a plurality of workpieces loaded on a pallet or the like on a pallet basis, and the ID tag is configured to be attached to the pallet. Unable to manage production information. Therefore, for example, when different production processes are performed for each work in one pallet, it can not respond.

  Further, according to the technology described in Patent Document 3, although it is possible to manage the quality of the work on the substrate, it is not possible to manage the process history of the work produced through a plurality of processes. Further, according to the technology of Patent Document 4, it is possible to manage the progress of the process of the work which is different in the production process for each work. However, the configuration of Patent Document 4 can not cope with a workpiece to which an ID tag can not be attached directly, and also manages the production status of each workpiece when a plurality of workpieces are held in one holding case. I can not

  Therefore, the present invention provides a production management system capable of appropriately managing production for each work even when production is performed by holding the work in a case capable of holding a plurality of works. To do.

  In the production management system according to the present invention, in a holding unit including first and second cases capable of holding a plurality of works, the holding position at which the first work is held and the first work are identified. A storage unit in which a work ID is associated and stored, and a first work held at a first position in the first case are different from the first position in the first case And a controller configured to change the information of the holding position associated with the work ID in the storage unit from the first position to the second position, when the second position is newly held at the second position. , It is characterized.

  In the production management system according to the present invention, in a holding unit including first and second cases capable of holding a plurality of works, the holding position at which the first work is held and the first work are identified. A storage unit in which a work ID is associated and stored, and a first work held at a first position in the first case, in the second case different from the first position A control unit for changing information of the holding position associated with the work ID in the storage unit from the first position to a position in the second case where the work is held, when the position is newly held at the position And, characterized in that.

  In addition, a production management system according to the present invention is a production management method of managing a history of a process related to a work in a production line in which a process for the work is executed using a case capable of holding a plurality of works. Using a case ID tag physically attached to the case and capable of identifying the specific case, and a work process history database for recording a production process history for each work, the control unit comprising the work process history database A database management step of managing a history of steps related to the work using a case ID identifying the case ID tag recorded in the step and a work ID associated with the holding position of the work in the case It is characterized by including.

  According to the present invention, even when production is carried out by holding a workpiece in a case capable of holding a plurality of workpieces, production management can be appropriately performed on each workpiece.

It is an explanatory view showing a production control system concerning an embodiment of the present invention, and an example of a display. It is an explanatory view showing an outline of a production control system concerning an embodiment of the present invention. It is an explanatory view showing the database composition in the production control system concerning the embodiment of the present invention. It is explanatory drawing which illustrates the database operation in the case of performing supply to the conveyance case based on embodiment of this invention, and discharge | emission. (A) is explanatory drawing which shows the reference method of the process log which concerns on embodiment of this invention, (b) is explanatory drawing which showed the inter-process conveyance case and workpiece | work which are used by the embodiment. It is an explanatory view showing an example of a display screen of reference contents of process history concerning an embodiment of the present invention. It is explanatory drawing which showed the workflow in case a production process differs for every workpiece | work which concerns on embodiment of this invention. It is an explanatory view showing the contents of a database when the workflows concerning an embodiment of the present invention differ. (A), (b) is explanatory drawing which shows the display screen of the process log which concerns on a respectively different workflow in embodiment of this invention. It is explanatory drawing which shows the process log display screen of the components mounted in the product in a remote place in embodiment of this invention. It is a block diagram showing an example of composition of a database control part in a production control system concerning an embodiment of the present invention. It is a flowchart figure which shows the control procedure of the database control part in the production management system which concerns on embodiment of this invention. It is an explanatory view showing an example of an assembly procedure and an assembly part layout display concerning an embodiment of the present invention. It is explanatory drawing which shows the application example to the circuit board of the display screen of the reference content of the process log concerning embodiment of this invention. It is an explanatory view showing an example of composition of a network and a production device in a production control system concerning an embodiment of the present invention.

  Hereinafter, an embodiment for carrying out the present invention will be described with reference to the attached drawings. The configurations shown below are merely examples, and the configuration of details, for example, can be appropriately modified by those skilled in the art without departing from the spirit of the present invention. Further, the numerical values taken up in the present embodiment are reference numerical values and do not limit the present invention.

  As described above, it may not be suitable to attach an ID tag such as a stamp, a bar code or an IC chip depending on the workpiece handled by the production system and the product to be produced. For example, in a production system of an optical product such as an interchangeable lens of a camera, when an identification code unique to an optical element (lens) is imprinted or an ID tag such as a bar code or an IC chip is attached, the performance of the optical product after assembly・ It may affect the quality. Therefore, in the production process of an optical product such as an interchangeable lens, for example, it is not preferable to attach a physical ID tag to an optical element (lens).

  This embodiment will be described by way of example for the production of an optical element (lens) or an optical product comprising it. In that case, for example, an optical element (lens) work which can not be attached with an ID tag directly is held between a plurality of cases in one case to move between processes. The plurality of works held in this one case may be a plurality of works having different production processes for each work. In the present embodiment, production control for managing production (process) history and a display output method of production (process) history will be described in the above-described production mode.

  FIG. 1 shows the configuration of the process history database (101, 102) stored in the storage unit in the production management system according to this embodiment, an inter-process transfer case 2 for accommodating a plurality of works 1 used in the manufacturing process 1022, and a history The monitor 13 which displays information is shown. Moreover, in FIG. 1, an example of the manufacturing process 1022 which is the object of production control is shown in the lower part.

  The manufacturing process 1022 in FIG. 1 includes “1. Acceptance”, “2. Processing A”, “3. Inspection A”, “4. Processing B”, “5. Inspection B”, “6. It consists of each process such as “shipment inspection”. This manufacturing process 1022 receives a work to be a lens base material as an optical element ("acceptance"), passes through two kinds of processing and inspection processes ("processing A, B", "inspection A, B"), and then the lens This is an example of assembly ("assembly") to a lens barrel and shipment inspection ("shipment inspection"). In this embodiment, mainly on the premise of such a manufacturing process 1022, production control by the process history database (101, 102) and a method of displaying a process history in progress of the manufacturing process will be described. In the attached drawings, the database may be abbreviated as "DB" due to the space relationship.

  As shown in the lower part of FIG. 1, the process history of the manufacturing process 1022 is stored and managed for each process of the case information database 101 constituting the process history database, in particular the process operation history database 103. When each process of the manufacturing process 1022 is executed, the process operation history database 103 stores detailed histories of processing conditions such as setting conditions, environment, sensor data, etc. when the process is executed. For example, in the “1. Acceptance” process, the shipping source information of the workpiece, the lot number, the delivery date, the acceptance inspection result and the like are stored. Further, in the “2. processing A” step, the identification name of the processing device to be used, the processing date, the processing recipe, the processing setting conditions, the state of consumable parts, the sensor history of the device such as temperature and humidity, etc. are stored.

  The work history database 102 manages the process history of each work. For example, when a production line receives a workpiece, the workpiece history is newly created and stored in the workpiece history database 102 for each workpiece. Every time the history of each production process is stored in the process operation history database 103, the address (link information) of the history record of the process operation history database 103 related to the relevant work is added to the work history database 102 in the order of processes. In this way, the progress of the production process for each work and the reference destination of the process operation history database 103 can be managed.

  In the production line of this embodiment, a plurality of works 1 are held in the inter-process transfer case 2 to transfer the work between production processes. The case information database 101 constituting the process history database is configured to store work layout information in the case of the inter-process transfer case 2 and information of individual workpieces held. The case information database 101 is referred to when each process is supplied or discharged, and is registered and updated. For example, in order to be able to hold a plurality of workpieces 1, the inter-process transport case 2 of FIG. 1 is partitioned between the workpieces and the workpieces, and in the case of this embodiment, it is partitioned into three rows and six columns. Thereby, the inter-process transfer case 2 can hold a plurality of eighteen workpieces 1.

  In the present embodiment, each inter-process transfer case 2 is attached with an ID tag 3 (case ID tag) having identification information unique to that case and capable of identifying a specific case. The ID tag 3 includes, for example, a barcode or an IC chip in which case-specific identification information is recorded. A unique identification code can be assigned to the inter-process transfer case 2 by the ID tag 3. In the present embodiment, the ID tag 3 using a barcode is attached to the side surface of the inter-process transfer case 2.

  The barcode of the ID tag 3 can be read by the barcode reader 11. However, an IC chip or another type of ID tag 3 may be used, and the mounting position on the inter-process transfer case 2 is arbitrary. For example, a member such as a nameplate in which a unique case number or the like is given by a character string may be used for the ID tag 3. In that case, the reading unit of the ID tag 3 may be configured by an imaging device such as a digital camera and hardware or software that performs an OCR process.

  Note that the reading means (device) of the ID tag 3, for example, the barcode reader 11 may be operated manually by the operator or may be operated by a pre-programmed automatic operation of the robot apparatus. Alternatively, when the inter-process transfer case 2 is carried in (discharged) to a predetermined position on the production line, the reading means (device) of the ID tag 3 disposed in the vicinity automatically detects the ID tag 3 and identifies it. It may be configured to read information.

  In the present embodiment, the inter-process transfer case 2 or the removal and holding of the work 1 from the case is performed by a robot device that performs automatic transfer or the like on a production line. This robot apparatus (not shown in detail) or its robot control apparatus is capable of so-called palletizing processing. Virtual palletizing numbers 4 (“1” to “18”) are given to the workpiece holding position (holding part) of the inter-process transfer case 2 in accordance with the palletizing rules of the robot apparatus performing automatic transfer. The palletizing number corresponds to control information for controlling the robot apparatus that handles the inter-process transfer case 2 or the work 1. In robot control data, palletizing number 4 is associated with the geometry of the case (arrangement and dimensions of the holder). Thus, for example, when an operation for the holding position corresponding to a certain palletizing number 4 is taught, an operation for the holding position corresponding to the other palletizing number 4 can be generated through coordinate conversion of the teaching point or the like. In this embodiment, this palletizing number is used as the holding position address in the inter-process transfer case 2. The form of the holding position address in the inter-process transfer case 2 is not necessarily required to use the palletizing number. For example, three-dimensional coordinates of a coordinate system having an origin at a predetermined portion of the case may be used. The form of is arbitrary. In the present specification, the holding position or holding position address may be simply referred to as a position.

  In FIG. 1, a computer 12 provided with a monitor 13 is shown as a terminal for referring to the process history database (101, 102, 103). Although the monitor 13 and the computer 12 are illustrated as a desktop PC (personal computer) in the same figure, the installation place and embodiment of the computer 12 are optional. For example, the monitor 13 and the computer 12 may be configured by a pad-type computer provided with a touch panel or the like, or a portable terminal (such as a smartphone or a cellular phone). Alternatively, the monitor 13 and the computer 12 may be other forms of PC (including a notebook type, a small so-called UMPC, etc.). If the monitor 13 and the computer 12 are configured to be portable, for example, a worker who manages a production line searches the process history database (101, 102, 103) while moving the site and causes the monitor 13 to display it. A variety of work forms are possible.

  Here, in FIG. 11, hardware of a control system that can be commonly used for the computer 12 provided with the monitor 13 of FIG. 1 and a database device (server) for operating the process history database (101, 102, 103) Indicates the configuration. As shown in the figure, this control system is composed of blocks arranged around the CPU 1601. The control system of FIG. 11 will be described below by taking the configuration of the computer 12 having the monitor 13 of FIG. 1 as an example, but the database apparatus (server) for operating the process history database (101, 102, 103) is necessary Add an explanation according to

  The control system around the CPU 1601 in FIG. 11 is connected to another device B via the network NW. If the control system around the CPU 1601 is the computer 12 having the monitor 13 of FIG. 1, the other apparatus B considers the process history database (101, 102, 103) in association with the database apparatus (server) that operates. be able to. Conversely, if the control system around the CPU 1601 is a database device (server), the other device B is associated with the computer 12 having the monitor 13 of FIG.

  The control system of FIG. 11 has a configuration in which a CPU 1601, a ROM 1602, a RAM 1603 and the like are used as main control means (control device). The control unit of FIG. 11 includes a CPU 1601 as a main control unit, a ROM 1602 as a storage unit, and a RAM 1603. The ROM 1602 can store a control program of the CPU 1601 for realizing a control procedure to be described later, constant information, and the like. Further, the RAM 1603 is used as a work area or the like of the CPU 1601 when executing a database control procedure shown in each drawing described later.

  If the configuration of FIG. 11 is a terminal for referring to a database such as the computer 12 of FIG. 1, the display 1608 (the monitor 13 of FIG. 1 etc.) and the operation unit 1609 are connected to the interface 1607 as a user interface device. . The operation unit (input unit) 1609 can be configured by, for example, a full keyboard and a pointing device, and configures a user interface for a worker who performs simulation and verification. Alternatively, the display 1608 and the operation unit 1609 may be integrated as hardware such as a touch pad.

  The control system of FIG. 11 includes a network interface 1605 as communication means for communicating via the network NW. The CPU 1601 can transmit and receive, for example, control signals (packets) necessary for controlling the process history databases (101, 102, 103) via the network interface 1605 to the network NW. In addition, the network NW is also used to receive a control signal relating to the progress of a process from a production device (a robot device, a transport device or the like) arranged in a production line (system). The network interface 1605 can be configured by a communication standard by wired communication such as IEEE 802.3, or wireless communication such as IEEE 802.11 or 802.15. However, of course, any other communication standard may be adopted for the network NW.

  A control program of the CPU 1601 for realizing a control procedure described later can be stored in a storage unit such as the external storage device 1604 including an HDD or an SSD, or the ROM 1602 (for example, an EEPROM area). In that case, a control program of the CPU 1601 for realizing a control procedure to be described later can be supplied to each storage unit described above via the network interface 1605, and can be updated to a new (another) program. Alternatively, the control program of the CPU 1601 for realizing the control procedure described later is supplied to each of the above-mentioned storage units via storage means such as various magnetic disks, optical disks, flash memories, and drive devices therefor. Also, the contents can be updated. Various storage means and storage units in a state where the control program of the CPU 1601 for realizing the above-described control procedure is stored constitute a computer readable recording medium storing the control procedure of the present invention.

  If the configuration of FIG. 11 is a control system of a database apparatus (server) that operates the process history database (101, 102, 103), the database file recording the database record is stored in the external storage device 1604. The external storage device 1604 may not necessarily be connected to the hardware interface of the control system of the database device (server). For example, the external storage device 1604 may be configured of a disk device such as a NAS (network connection storage), and may be connected to the network NW by hardware alone.

  Here, the display screen contents of the process history displayed on the monitor 13 of FIG. 1 will be described. In the present embodiment, the monitor 13 constitutes a display unit capable of displaying the holding position and the like of the work in the case as the holding unit. The display example of FIG. 1 corresponds to a state in which the process history screen 5 a of each workpiece held in the inter-process transfer case 2 is read into the computer 12 and displayed on the monitor 13. The process history screen 5b on the left side of FIG. 1 is an enlarged view of the process history screen 5a of the monitor 13 at the center of the same figure. In this example, the process history screen 5b displays the case identification number display unit 8 capable of displaying and inputting the individual identification number of the inter-process transfer case, the work layout display unit 6 in the inter-process transfer case, and the process of each work. The process history display unit 7 displays the history.

  When the ID tag 3 (bar code) attached to the inter-process transport case 2 is read by the bar code reader 11, the bar code number is displayed on the case identification number display unit 8 of the monitor 13. Then, based on the barcode data, the individual information of the inter-process transfer case 2 can be searched from the case information database 101. Furthermore, “work layout information in the inter-process transfer case” and “information of each held workpiece” can be acquired from the case information database 101 from the individual information of the inter-process transfer case 2.

  Then, based on the acquired “work layout information in the inter-process transfer case”, it is possible to display a work layout that is a layout of the entire case including the holding position on the work layout display unit 6. In this example, the work layout display unit 6 has a configuration of 3 rows and 6 columns corresponding to the layout of 18 holding positions of the case. If the geometry of the holding position of the inter-process transfer case 2 is different, another arbitrary mode may be used in the work layout display unit 6 correspondingly. In the present embodiment, the palletizing numbers (1 to 6) corresponding to the case holding position addresses are stored in the respective display positions corresponding to the respective holding positions in the 3 rows and 6 columns of the work layout display portion 6 or the work held therein. 18) is displayed.

  The monitor 13 can be used to select individual work (or holding position) portions of the work layout display unit 6 by using a touch panel configuration or using a pointing device such as a mouse or a track pad (not shown). Configure as. The work selected by the work layout display unit 6 is highlighted (10 thick frame in FIG. 1).

  Further, based on the information of the individual held workpieces acquired from the case information database 101, the corresponding workpiece process history can be searched from the workpiece history database 102. Then, the reference destination of the process operation history database 103 for each unique workpiece can be acquired. Thereby, the process operation history of the selected work 10 selected by the work layout display unit 6 can be acquired from the process operation history database 103 and displayed on the process history display unit 7. In FIG. 1, the process history for the work corresponding to the holding position selected (10) in the work layout display unit 6 is displayed on the process history display unit 7.

  The display of the process history display unit 7 is configured such that the content display can be switched by the operation on the tabs (manufacturing process “1. Accept”, “2. Process A”, “3. Inspection A”. Therefore, if the tabs are sequentially operated, the display of the process history display unit 7 can refer to the process contents which have been advanced in the order of the production process. In addition, the tab of the process history display unit 7 is generated and displayed only for the progressed process. For example, in the display example of FIG. 1, the work of the palletizing number "6" selected by the selected work layout display section 6 is progressing to the process of "5. inspection B" at the rightmost tab. I understand. The detailed history of the production process selected by tab switching is displayed in a list.

  In addition, the display mode can be changed between an item in an allowable range of predetermined process conditions set in advance and an item (abnormal information) not in the allowable range. In this case, for the change of the display mode, it is possible to use the change of the display color (by at least two or more colors) or the change of the density (the same switching of the density). The selection of such a display mode is, for example, the result of comparing the predetermined process condition allowable value and the process history data relating to the specific process of the specific work contained in the specific holding position address of the case. It can be done based on

  Further, in the work layout display unit 6, “OK” is displayed for the display cell of the work that is within the allowable range of the predetermined process condition for all items of all production processes, “Gray” for the work that was not partially within the allowable range. The apparently defective work is classified into "NG" and displayed. In that case, the classification of “OK” (for example, good product), “Gray” (for example, between good product and defective product), and “NG” (for example, defective product) can be classified into different display modes on the work layout display unit 6, for example, color indicate. Some workpieces that are not within the allowable range and workpieces that are apparently defective may be displayed as abnormal, as they include abnormal information. Further, as in the example of FIG. 1, "Null" indicating the absence of a work is displayed at the holding position address (display cells of palletizing numbers 17 and 18) at which no work exists in the inter-process transfer case. In addition, when the processing conditions are changed, a display indicating that the holding position (the display cell of the work) associated with the work ID associated with the information of the process executed for the work before the change is abnormal. You may

  Further, the individual information of the inter-process transfer case 2 can be searched by directly inputting the bar code number of the inter-process transfer case 2 in the case identification number display unit 8 and operating the search button 9. If the bar code number is known even if the inter-process transfer case 2 is not at hand, it is possible to refer to the production process progress and process history of the individual work held in the inter-process transfer case.

  Next, a configuration example of a production management system in the present embodiment will be described with reference to FIG. In FIG. 2, the workpieces held by the inter-process transport case 2 are transported between the respective production processes in each of the manufacturing processes (1022) in various retention modes. The illustrated manufacturing process (1022) is the same as the flow of the optical product manufacturing process (1022) similar to that illustrated in FIG.

  In each manufacturing process (1022), the work held in the inter-process transport case 2 for supply is supplied, the work is taken out from the inter-process transport case for supply, and each process is sequentially executed. In that case, for example, if there is an operation of returning to the previous process and performing reprocessing or removing a defective product which does not meet the criteria as a result of inspection, the inter-process transfer case for supply and the inter-process transfer case for discharge The number of workpieces stored in may be different (1023). When each production process is completed, the work is held by the inter-process transport case (2) for discharge, the inter-process transport case (2) for discharge is discharged, and the work is transported to the next process (1023). Similarly, in the next process, the work is taken out from the inter-process transfer case (2) transferred from the previous process, and the process is executed.

  Also in FIG. 2, the process history database includes a case information database 101, a work history database 102, and a process operation history database 103. The process operation history database 103 in which the history of each process constituting the manufacturing process (1022) is stored is managed for each production process by hardware such as a database storage device and a database computer (server). The hardware for such database management may be installed, for example, in separate production plants.

  The work history database 102 and the case information database 101 are connected via, for example, a network (not shown). In that case, the work history database 102 is accessible from all processes, and the case information database 101 is accessible from at least each process to be transported.

  In each process ("1. Accept", "2. Process A", "3. Inspection A" ...) of the manufacturing process (1022), a process operation history database 103 for storing the history of each process is arranged. Ru. When each process is executed, detailed history data such as setting conditions, environment, sensor data and the like when the process is executed is accumulated in the process operation history database 103 and stored.

  When the history of each manufacturing process is stored in the process operation history database 103, the address (link information) of the database record related to the work in the process operation history database 103 is added to the work history database 102 in order of process. In the case information database 101, in addition to the work layout information in the case of the inter-process transfer case 2 and the information of individual works corresponding to the held position, it is necessary for automatic transfer and assembly by a production apparatus, for example, a robot apparatus. Teach data etc. are registered.

  Next, the internal configuration of the work history database 102, the case information database 101, and the process operation history database 103 shown in FIG. 2 will be described.

  FIG. 3 shows an example of the database configuration according to the embodiment of the present invention. In the case information database 101, teaching information 301 and work holding information (work storage information) 302 are registered. The teaching information 301 includes the type of case (3011), the name of the part number (3012) of the work held in the case, and the number of rows and the number of rows of inter-process transfer case 2 necessary for palletizing the above-described robot apparatus (3013). , 3014) and teaching data (3015) are registered.

  In the workpiece holding information 302, the case ID (3021) for each inter-process transfer case, the type of case (3022), and the barcode (3023) of the ID tag attached to the case are registered. Further, in the workpiece holding information 302, the workpiece ID (3024) of the workpiece held at each holding position (palletizing number) of the case of the record is registered.

  In the work history 303, the work ID (3031) and the name of the part number (3032) of the work are registered for each work in the receiving process. Then, every time each production process is performed on the work, the address (addr: link information) of the process operation history database 103 is additionally written in the order of processes as "process 1", "process 2", etc. Go. The address of the process operation history database 103 may be abbreviated as “addr” in the drawing. The number of processes that can be registered in the database is secured based on the number of production processes of the work.

  Next, after storing the receiving process operation history in the “1. Accepting” process of the manufacturing process shown in FIG. 2, database control for associating the receiving process operation history with the work holding place will be described using FIG. 3. Do. In FIG. 3, steps of the database control procedure are indicated by reference symbols such as “Step 1”, “Step 2”,... (The same applies to the same type of attached drawings described later).

  First, in response to the transfer of the work to the production line, the work ID “W0012345” (field 3031) and the part number “L0003” (field 3032) are newly added to the work history database 102 in the “1. acceptance” process. Register ([Step 1]).

  Subsequently, information such as the shipping source information of the work, the lot number, the delivery date, and the acceptance inspection result is stored in the process operation history database 103. Then, the address (link information) of the record stored in the (reception) process operation history database 103 regarding this work is recorded in the field (3033) of the “process 1” of the work ID “W0012345” ([Step 2]).

  Subsequently, when holding the work in the inter-process transfer case, the case type “CT0003” (field 3022) which reads the bar code (field 3023) of the ID tag 3 attached to the case by the bar code reader 11 (FIG. 1) )) ([Step 3]).

  Furthermore, referring to the case information database 101 from the case type “CT0003” (field 3022), the number of rows, the number of columns, teaching data (3013, 3014, 3015), etc. necessary for palletizing containing the work (W0012345) are acquired. Do. That is, the configuration of each holding unit of the case, teaching data for handling the work held in each holding unit of the case, the palletizing number, and the like are acquired ([Step 4]).

  Subsequently, when the workpiece of the workpiece ID “W0012345” is held in the palletizing number “1” of the inter-process transport case 2, the workpiece ID “W0012345” is registered in the palletizing number “1” of the workpiece holding information 302 ([Step 5]) ).

  Similarly, for the palletizing number “2” and later, by repeating this registration every time the held work is held in the inter-process transfer case, the place (palletizing number) where the individual work is held and the work thereof ID is associated.

  Next, referring to FIG. 4, the inter-process transport case 2 holding the workpiece in the “1. Acceptance” process of the manufacturing process shown in FIG. 2 is supplied to the “2. Process A” process of the next process, The process until it is discharged will be described. That is, this example is database control when supplying and discharging a work to the inter-process transfer case 2. FIG. 4 shows an example of the database operation of the process of supplying and discharging to the inter-process transfer case in the same format as FIG. 3 and using the same reference numerals.

  In the workpiece holding information 302 of FIG. 4, the case (I) inter-process transfer case is the case ID “C150154”, and the discharge (O) inter-process case is the case ID “C150158” as the case information database 101. Registered in

  The work ID "W0012345" held at the position (first position) is registered in the palletizing number "1" of the case ID "C150154" of the inter-process transfer case for supply (I). In addition, since the work is not held in the inter-process transfer case for discharging (O), the case where the work ID is not registered in the palletizing number of the case ID “C150158” will be described.

  First, the barcode reader 11 reads a bar code from the ID tag of the inter-process transport case for supply (I) and the inter-process transport case for discharge (O). Then, referring to the case information database 101 and the workpiece holding information 302 from the read case types “CT0003” and “CT0004”, the teaching position and palletizing number of each holding place in each case are acquired ([Step 1]) ).

  Subsequently, when taking out the work from the palletizing number “1” (first position) of the in-process transfer case for supply (I), based on the workpiece holding information 302 of the in-process transfer case for supply (I) Work ID "W0012345" is acquired. When this work is taken out, the registration of the work ID of the palletizing number "1" of the case ID "C150154" of the inter-process transfer case for supply is deleted ([Step 2]).

  When the process of Machining A is executed on the taken-out work, the identification name of the machining device used for the process operation history database 103 of Machining A, machining date and time, machining recipe, machining setting condition, condition of consumable parts, sensor of the device The process history of the history (temperature, humidity, etc.) is stored, and the address (link information) of these process history records stored in the process operation history database 103 for the “process A” is the work ID “W0012345”. Record at the position (3033) of "step 2" ([Step 3]).

  Subsequently, when holding the processed work in the discharge process transfer case, in the work holding information 302, the palletizing number (third position) holding the work with case ID “C150158” for discharge (O). The work ID "W0012345" is registered ([Step 4]). At this time, the sensor data of the apparatus at the time of processing may be used to change the palletizing number to be discharged or to change the process of distributing and discharging a plurality of inter-process transfer cases for discharging (O). In that case, the holding position to the inter-process transfer case other than that illustrated is recorded in the database in the same manner as described above. In this example, the case where the work after processing is held by the palletizing number "2" of the plurality of inter-process transfer cases for discharge (O) is shown. Further, the discharge case may be held at a different position (second position), for example, the palletizing number "10" of the same case "C150154" as the case "C150154" for supply.

  Thereafter, the same database registration is repeated for the processes after “2. Process A” of the manufacturing process shown in FIG. 1 and FIG. 2 so that all process operation histories are registered for work ID “W0012345” of the work history. The address of the database 103 is registered. Then, after the process of “7. shipping inspection”, the work ID “W0012345” is registered in the palletizing number of the case ID of the case where the main work is held and shipped. For example, even when assembling different types of optical elements as in a lens barrel, the work IDs of different optical elements may be registered in the palletizing number of the case ID of the lens barrel by the same database operation. it can. For example, when another work is held at the position of palletizing number “1” after the work held at the palletizing number “1” is held at another position, the first position of the first case A new work ID is assigned to the palletizing number "1" as. Then, the other work and the newly assigned work ID are associated with each other and stored in the server.

  Next, in the present embodiment, a method of referring to the individual process history of each workpiece will be described with reference to FIGS. 5 and 6. Here, after the process of “3. inspection A” of the production management system shown in FIG. 1, each process history of “1. acceptance”, “2. process A” and “3. inspection A” up to that point is The case of referring will be described as an example.

  5A and 5B show a method of referring to the process history according to the present embodiment. FIG. 5A shows the database configuration in the same format as in FIGS. 3 and 4. Moreover, FIG.5 (b) has shown the state by which the workpiece | work was hold | maintained by the conveyance case 2 between processes after a "3. test | inspection A" process. Moreover, FIG. 6 has shown the display screen which refers to the process log in this embodiment.

  For example, here, after the “3. inspection A” process, as shown in FIG. 5B, the process history of the workpiece W held in the inter-process transport case 2 is referred to. The display of FIG. 6 displays on a screen the process history information acquired by the operation shown in FIG. 1 described above. In the following, a state in which the palletizing number "3" (the holding position of the workpiece W in FIG. 5B) is selected in the initial state will be described as an example. In the following, as in the case of FIGS. 3 and 4, the database control of FIG. 5A will be described using reference symbols such as steps "Step 1", "Step 2", and so on.

  In the database control shown in FIG. 5A, first, the barcode reader 11 reads the ID tag 3 of the inter-process transport case 2 in which the workpiece W to which the process history is desired to be stored is held. Then, the case type “CT1554” is displayed on the case identification number display unit 8 of FIG. 6 ([Step 1]).

  Further, the teaching information 301 of FIG. 5A is retrieved from the acquired case type “CT1554”, and the number of rows (field 3013), number of columns (3014), teaching data (3015), etc. are read out. It displays on the work layout display part 6 of FIG. 6 ([Step 2]).

  Further, when the palletizing number "3" corresponding to the holding position of the work W (FIG. 5B) is selected in the work layout display unit 6 of FIG. 6, the work holding information 302 is searched based thereon. Then, the work ID “W0503265” registered in the palletizing number “3” is acquired, and based on this, the process history data record is searched from the work history 303 ([Step 3]).

  For the work ID “W0503265”, the history up to “step 3” is registered. Therefore, the database such as acceptance (103a), processing A (103b), inspection A (103c) and the like constituting the process operation history database 103 is referred to by the work ID "W0503265". As a result, for example, the process name is acquired, so the tabs of the process history display unit 7 of FIG. 6 are displayed in the order of the process. Further, based on the reference result of the same database, the process history for each process executed for the work ID “W0503265” can be obtained. For example, the details of each process history are read from the process operation history database 103 using an address (link information) that refers to a database such as acceptance (103a), process A (103b), inspection A (103c), etc. Display on the display unit 7 ([Step 4]).

  Even when more manufacturing processes are being executed, process history and process progress status data for each workpiece are acquired from the process operation history database 103 by the same control as described above, and in the same manner as in FIG. It can be displayed and output.

  Next, with reference to FIGS. 7 and 8 and FIGS. 9A and 9B, control in the case of managing the production history of a workpiece whose production process is different for each workpiece will be described. FIG. 7 shows an example of a workflow in which the production process is different for each work in the present embodiment. In FIG. 7, “2. processing A”, “3. inspection A” and “4.” corresponding to a part of the manufacturing process (1022) of FIG. 2 and the handling (1023) of the inter-process transfer case (2). The part of process B "is shown.

  The handling (1023) of the inter-process transfer case (2) is indicated by the reference numerals 704, 705, and 706 between the steps.

  In this manufacturing process (1022), after the "2. Process A" process, the "3. Inspection A" process is carried out, and the work for which the inspection was OK is the inter-process transport for supply of "4. Process B" (I) The work is held in case 2 and the process proceeds to the “4. processing B” process (the inter-process transfer case at the top of 706).

  Further, among the workpieces for which the inspection was unsuccessful in the “3. inspection A” process, the “2. processing A” process is executed again. For example, the work of the level that becomes inspection OK by re-execution of the "2. Process A" process holds the work in the inter-process transfer case for supply (I) of "2. Process A" again, and "2. Process A" Return to the process (in-process transfer case at the bottom of 706).

  In addition, among the workpieces for which the inspection NG was made in the “3. inspection A” process, the workpieces that are not expected to become an inspection OK even if the “2. processing A” process is executed again Hold in the transport case. In addition, the workpiece on which the “2. processing A” process has been performed, for example, twice (or more) is also held in the middle inter-process transfer case for discarding 706. Then, the inter-process transfer case for discarding in the middle of 706 is sent to the discarding process (707).

  The process history of each process (1022) is recorded in each database of process A (103 b), inspection A (103 c), process B (103 d) of the process operation history database 103. The exchange to the inter-process transfer case related to the process change as described above and the use of the case are managed by the case information database 101. It is possible to change the case to the inter-process transfer case and to properly use the case by a robot device or the like. In that case, based on the control information for controlling the palletizing operation of the robot apparatus, the case ID of the case information database 101 and the palletizing number (holding position in the case) are contents according to the replacement or use of the case. It will be updated.

  Next, for example, when the workflow of the production process is different for each work as shown in FIG. 7, database control relating to the process operation history database 103, the work history database 102, and the case information database 101 is performed as shown in FIG. . FIG. 8 shows the state of database control of the process history database (101, 102, 103) in the same format as FIG. 3, FIG. 5 (a).

  Here, first, the production process of two workpieces “W0583266” and “W0583265” stored in two holding positions in a case (case ID “C950160”) and palletizing numbers “1” and “2”, respectively. Shows how the The progress of the process is shown by the display such as [Step 1] to [Step 6].

  In FIG. 8, the workpiece with the workpiece ID “W0583266” is “OK” at the first inspection of the “3. Inspection A” process shown in FIG. 7, and the process proceeds to the “4. Processing B” process without returning the process. (Field 3033 of each process of the work history database 102). On the other hand, after the “3. Inspection A” process, the “2. Machining A” process is executed again for the workpiece with the work ID “W0583265”, and the inspection becomes OK in the second “3. Inspection A” process, “ 4. It becomes the work completed to process B process.

  As in the case of the work ID “W0583265”, even when the “2. process A” process and the “3. inspection A” process are executed twice, the process operation history database 103 of the process operation history database 103 is executed each time the production process is performed. Addresses are added to the work history database 102 in order of process.

  Then, when [Step 1] to [Step 6] are executed, the process history is registered in the work history database as shown in FIG. In the state of FIG. 8, it can be seen that the work IDs “W0583266” and “W0583265” different in the number of production steps executed have different numbers of addresses of the process operation history database 103 registered.

  In this example, in the workpieces with workpiece IDs “W0583266” and “W0583265”, “W0583265” has more pass processes, and passes “2. process A” process and “3. inspection A” process twice. doing. However, even at that stage, the works with work IDs “W0583266” and “W0583265” are accommodated in the palletizing numbers “1” and “2” of the inter-process transfer case (2) having the same case ID “C950160”. .

  The process history of the work registered as shown in FIG. 8 can be displayed on the monitor 13 (FIG. 1) in a display mode as shown in FIG. 9, for example, and can be referred to by an operator or a manager. FIG. 9 shows an example of a process history display screen in the case where the workflow is different for each work as in FIG. 7 and FIG. This display example corresponds to, for example, a state where the case ID “C950160” is designated by the case identification number display unit 8 after the process has progressed as shown in FIG. 8, for example.

  9 (a) shows the process history display screen when the palletizing number "1" of the inter-process transfer case (2) having the case ID "C950160" is selected, and FIG. 9 (b) shows the palletizing number "2". It is a process history display screen when selected. At these holding positions, works of work IDs “W0583266” and “W0583265” are held, respectively.

  In FIGS. 9A and 9B, since the tabs of the process history display unit 7 are arranged in the production process order as described above, the production process can be performed with palletizing numbers “1” and “2” as shown in FIG. If it is different, it is possible to know the progress of the production process progress by looking at the tab display. In addition, the worker or the manager can display the detailed process history by selecting the tab of the process history display unit 7. Further, the work “W0583265” with the palletizing number “2” has a different workflow from the work with the work “W0583266” with the palletizing number “1”. Therefore, the display modes of these two workpieces may be different from each other in the work layout display unit 6 and the process history display unit 7 shown in FIGS. 9A and 9B, for example. In that case, for the work “W0583265” subjected to reinspection or rework, for example, the display color of the display cell of the corresponding work layout display unit 6 or the process history display unit 7 is different from that of “W0583266” Change to display color. This makes it possible to highlight the identification information of the workpiece “W0583265” which has undergone a process different from the normal process and the process history thereof.

  Further, since the address (link information) of the history record of the process operation history database 103 related to the work is described in the work history database 102, the updated latest process operation history can be referred to. Therefore, even if a defective work leaks out to a post-process due to a processing setting error etc., at the time of updating the process operation history, refer to the post-process operator or manager that the work is a defective work. Can. For example, it is assumed that in the process of “processing A” of [Step 4] in FIG. 8, when the process proceeds to the process of “processing B”, a setting error of “processing A” is found. If the content of the machining process database is corrected when this mistake is found and it is set as a defective product, it is classified as "NG" as a defective product workpiece in the work layout display section 6 in the process of "machining B". Is displayed. Although not illustrated, if the case ID in which the work is held is registered in the work history database and the case owner information is registered in the case information database, the work history is changed. It is also possible to notify the owner of the relevant work.

  FIG. 10 shows an example of process history display of parts mounted on a product at a remote place. In this example, the lens barrel (such as the interchangeable lens of the camera) or the lens holder inside the camera is regarded as an inter-process transfer case, and the serial number of the lens barrel or lens holder is the “case”. Is used as an ID tag (3) of

  Generally, a visually understandable serial number is given to the lens barrel as an identification code for the product of the lens barrel of this type (such as an interchangeable lens of a camera). Therefore, the finished and shipped product, ie, the lens barrel, is regarded as an inter-process transfer case, and the serial number of the product is recorded and stored in the case information database 101 as an ID tag (3) of the “case”. Can be

  If such database operation is performed, the process history database (101, 102, 103) tracks and investigates the process history of the work (for example, lens element) constituting each part of the product after shipment, not only during the production period. Can be used for such purposes.

  For example, the production process history of a lens (workpiece) mounted on a lens barrel which is a product can be displayed. For example, the serial number can be acquired from the store 2002 or the customer 2003, input to the case identification number display unit 8 provided in the monitor 13 of the computer 12, and the process history database (101, 102, 103) can be searched. Thereby, the case information database 101 is displayed on the work layout display unit 6 in the lens barrel, and the process operation history of the selected work 10 is acquired from the process operation history database 103 and displayed on the process history display unit 7 it can.

  The work layout display unit 6 of FIG. 10 is a schematic display of a lens barrel which is a product, unlike the rectangular display of the 18 squares of the inter-process transfer case (2) in the example so far. In this example, a state in which nine works (lens elements) are accommodated at the accommodation positions in the lens barrels 1 to 9 is schematically displayed in the work layout display unit 6. Therefore, for example, an operator who repairs or repairs the product in the support center (2001) can specify the lens barrel (inter-process transfer case) by the terminal provided with the computer 12 and the monitor 13. In that case, for example, the lens barrel can be specified by designating the serial number from the case identification number display unit 8 using the display mode as shown on the left side of FIG. In addition, by specifying (for example, clicking or tapping) a lens element (work) having a problem, for example, displayed on the work layout display unit 6, a detailed process history of the work can be displayed and referred to.

  FIG. 13 shows an example of assembly procedure and assembly part layout display in the assembly process. In this example, a display example displayed in the assembly process of the lens barrel is shown. This display example includes an assembly procedure display unit 501, an assembly detailed explanation display unit 502, and an assembly part layout display unit 504. When the barcode of the lens barrel to be assembled is read, the barcode number or serial number of the lens barrel is displayed on the identification number display unit 500, and the assembly process procedure is displayed on the assembly procedure display unit 501 in the order of the process. That is, the assembling procedure to the lens barrel as the second case is displayed on the monitor 13 as the display unit (assembly procedure display unit 501). When each procedure of the assembly procedure display unit 501 is selected, the assembly detailed explanation display unit 502 displays the detailed explanation of the assembly in a figure and a sentence. Then, the component 505 to be assembled is highlighted, the barcode number of the case in which the component is held is displayed on the identification number display unit 503, and displayed on the assembly layout display unit 504 of the case.

  The assembly parts are classified by statistical processing based on the production process history of the parts, one that satisfies the pass / fail standard in any combination and one that satisfies the non-defective item with the combination condition. In the assembly part layout display section 504, a part (OK) which can be assembled to the lens barrel in the case, a part (NG) which can not be assembled and a part (Gray) which can not be said both are displayed by characters and colors It is done. That is, the layout of the entire first case is displayed on the monitor 13 as the display unit, and the parts to be assembled to the lens barrel as the second case are displayed so as to be selectable from the layout of the entire first case (assembly parts layout Display unit 504). Also, actually assemble parts into the lens barrel, and if different from the contents of the assembly part layout display section 504, correct the data with the correction button (505a, 505b), and the statistical data meeting the non-defective item standard in combination to correct. In addition, for parts that do not meet the specifications in any combination, the inspection standards of the inspection process of the previous process are corrected so that defective products are not flowed to the latter process.

  The search for the process history of the workpiece constituting the lens barrel as a product as described above, and the reference display are the same control as the reference for the process history of the workpiece housed in the inter-process transfer case described above with FIG. It can be done by the process.

  As shown in FIG. 10, in the case where the product is used in the manufacturing process, the serial number is associated with the case ID (ID tag), and the workpiece mounting position in the product is associated with the workpiece ID to manage the database. This makes it possible to refer to and display the production history of a specific work in a specific product, as long as the serial number is known, and can greatly support the repair and repair of workers. According to the database management as shown in FIG. 10, it is possible to refer to the production history of a specific work even in a state of being incorporated in a product, particularly as in the lens element in the lens barrel. That is, according to the method as shown in FIG. 10, the product maintenance work can be performed by referring to and displaying the production history of a specific work in a specific product even if there is no actual product, as long as the product serial number is known. Is extremely easy.

  In the above, the case of the product of the lens barrel was considered, but the specific product treated equivalent to the case used in the manufacturing process may be anything other than the lens barrel, and the mounting position is assigned to the work ID The workpiece may be any part attached to the product. For example, the circuit board can be regarded as a case, and the process history of an IC chip mounted on a specific position address (work ID) on the circuit board can be managed. FIG. 14 shows an application example of the display screen of the reference content of the process history according to the embodiment of the present invention to a circuit board. When there are a plurality of circuit boards or units in the product, the hierarchy display unit 14 may be displayed on the display screen. When the serial number of the product is input to the case identification number display unit 8 and searched, the built-in circuit board and unit group are displayed on the hierarchy display unit 14. For example, when the base A of the internal board hierarchy is selected, the circuit layout of the base A is displayed on the work layout display unit 6. When the IC in the work layout display unit 6 is selected, the name of the IC is displayed on the selected component name display unit 15, and the process history display unit 7 can display the manufacturing process history of the IC.

  In the above, it has been considered that information corresponding to an ID tag, such as a serial number or a product code, is not given to a work (for example, the above lens element) managed by a work ID associated with a holding (mounting) position. However, the method of managing a work by the work ID associated with the above-mentioned holding (mounting) position may be used for a work having a serial number or a product code, for example.

  FIG. 15 shows a configuration example of a network and a production device in a production management system according to an embodiment of the present invention. The process operation history database 103, the case information database 101, and the work history database 102 are respectively managed by database servers (5110, 5210, 5310), and are a hierarchy of a global network, an interprocess network, and a process network. The process networks are grouped for each process, such as a process A process network 5120 a, an inspection A process network 5120 b, a process B process network 5120 c, and an inspection B process network 5120 d. Although not shown, a database and database server are connected to each network. The production equipment for processing A (5101a to 5101d), the production equipment for inspection A (5102a, 5102b), the production equipment for processing B (5103a to 5103c), and the production equipment for inspection B (5104a, 5104b) are respectively connected to the process network There is. The lower part of FIG. 15 shows details of the processing apparatus 5103 b for processing B. The apparatus controller includes a main control unit 5006, a processing control unit 5007, and a transfer control unit 5008, and is connected to the processing B process network 5120c via the network IF 5009.

  When the supply case 4001 and the discharge case 4002 are set in the apparatus, the bar code of the case is read by the bar code reader 5011 and sent from the bar code reader 5010 to the conveyance control unit 5008. The case information database 101 is referenced from the read barcode, and the case ID of the supply case 4001 and the discharge case 4002 and a work virtual ID tag (for example, palletizing number) are acquired. Then, on the monitor 5012 connected to the main control unit 5006, the process history screen (5001, 5002) of each workpiece held in the supply case 4001 and the discharge case 4002 is displayed.

  The transfer robot 5004 is controlled by the transfer control unit 5008 and transfers the work based on the information (for example, teaching information, palletizing number) acquired from the case information database 101. The transfer robot 5004 transfers the work from the supply case 4001 to the processing chamber 5003. The processing chamber 5003 is controlled by the processing control unit 5007, and stores the processing process history in the process operation history database 103. The address (link information) of the recorded process history data is added to the work history database. The work completed in the processing chamber 5003 is stored in the holding position of the specific palletizing number of the specific discharge case 4002 by the robot device or the like. Then, the case information database 101 is updated using the work virtual ID tag corresponding to the case ID of the ejection case 4002 and the holding position of the palletizing number corresponding to the work accommodation operation.

  FIG. 12 shows the database control (management) performed by the above-mentioned process history database (101, 102, 103), particularly the database apparatus (server) mounting the database according to the progress of the manufacturing process of a certain production line (system). Shows the flow of The control procedure of FIG. 12 can be described as, for example, a control program executed by the CPU 1601 (FIG. 11) of a database apparatus (server) that implements the above-described process history database (101, 102, 103). The control program can be stored, for example, in a storage unit such as the external storage device 1604 of FIG. 11 or the ROM 1602 (for example, an EEPROM area).

  In the procedure of FIG. 12, the inter-process transfer cases (4001, 4002) for supply (I) and for discharge (O) are used in a certain manufacturing process. Then, the figure shows that the work (group) is transferred from the supply (I) to the discharge (O) inter-process transfer case (4001-> 4002) after the end of the manufacturing process. In this example, N workpieces are accommodated in the inter-process transfer case (4001) for supply (I), and the manufacturing process is performed on all of them. After that, the work which has finished the process is transferred to the discharge case (O) inter-process transfer case (4002).

  In step S101 of FIG. 12, the inter-process transfer case (4001, 4002) for supply (I) and discharge (O) is manually operated by the operator or the programmed automatic operation of the robot apparatus included in the production system. Is set at a predetermined position of the production apparatus. It is assumed that, for example, a plurality of works are already held in advance in the inter-process transfer case (4001) for supply (I).

  In step S102, the ID tag (case ID) of the inter-process transport case (4001, 4002) for supply (I) and discharge (O) is read via the reading means (apparatus). This reading process is performed by the manual operation of the operator or the programmed automatic operation of the robot apparatus included in the production system, and the above-described bar code reader 11 or the like is used as the reading means (device).

  In step S103, a workpiece is taken out from the in-process transfer case (4001) for supply (I), and thereafter, the manufacturing process proceeds in the first to fourth steps (S201 to S204). Then, in synchronization with the progress of the manufacturing process, the process history is recorded in the process history database (101, 102, 103). Although steps S201 to S204 are shown as the first to fourth steps in FIG. 12, the first to fourth steps are for convenience, and the processing used in the [Step xxx] notation described above is not necessarily required. It does not match the step.

  In the first step, S201, the case information database 101 is referenced using the case ID of the inter-process transfer case (4001) for supply (I) and the work virtual ID tag (eg palletizing number) (S2011). Then, in response to the work taking out (S103), the work ID of the work in the holding position of the work virtual ID tag of the case in the case information database 101 is deleted (S2012).

  In the second step, S202, the manufacturing process is executed by the robot device or the like, and the process history corresponding to the contents is recorded in the process operation history database 103 (S2021).

  In the third step, S203, the address (link information) of the process history data recorded in the process operation history database 103 by the robot apparatus or the like is added to the work history database 102 (S2031).

  In the fourth step, S204, the work finished the process is stored by the robot device or the like in the holding position of the specific palletizing number of the inter-process transfer case (4002) for the specific discharge (O) (S2041). Then, the case information database 101 is updated using the work virtual ID tag corresponding to the holding position of the case ID for inter-process transfer case (4002) for ejection (O) and the palletizing number corresponding to the work accommodation operation. (S2042). Here, the work virtual ID tag of the case ID of the inter-process transfer case (4002) for discharge (O) is associated, and the corresponding record of the case information database 101 is changed (or created).

  In step S301, it is determined whether all workpieces initially held in the inter-process transfer case (4001) for supply (I) have been processed. This determination can be performed, for example, by decrementing the counter (N) for counting the remaining number of workpieces at the position of step S301 by 1 and then comparing with 0. If an unprocessed work remains in the inter-process transfer case (4001) for supply (I) and the first N work pieces have not been processed yet, the process returns from step S301 to step S103, and the above process is performed. repeat. If all N pieces of work have been processed at first, the process proceeds from step S301 to step S401, and the inter-process transfer case (4001, 4002) for supply (I) and discharge (O) is from the predetermined position of the production apparatus Taken out.

According to the control of FIG. 12, the work is taken out from the supply (I) inter-process transfer case (4001: first case) for holding the work, and the process operation is performed on the work to discharge the work. The inter-process transfer case (4002: second case) of (O) is held. In that case, in the work process history database (101, 102, 103), the following first to third database information is appropriately updated according to the process history and the replacement of the case with the work.
(1) First database information corresponding to a virtual work ID tag including the case ID of the first case and the holding position address of the specific work in the first case.
(2) Second database information in which a process history related to a process operation performed on a specific workpiece is recorded.
(3) Third database information corresponding to a virtual work ID tag that associates the case ID of the second case in which the specific work is held and the holding position address of the specific work in the second case.

  By the control as shown in FIG. 12, the process history databases (101, 102, 103) can be sequentially updated by the process history executed in synchronization with the progress of the manufacturing process. Also, at that time, according to the transfer of the workpiece, the workpiece virtual ID tag (for example, palletizing number) in the inter-process transport case (4001, 4002) for supply (I) and discharge (O) Is appropriately updated. As a result, it becomes possible to refer to the database using the display screen of the monitor (13) as described above by the worker, the manager or the person in charge of the support center (2001) of FIG. That is, the process history of the specific work contained in the specific case (or product) can be referred to without error.

  As described above, according to the production management system of the present embodiment, even if an optical (lens) element or the like to which the ID tag can not be attached directly can be easily coped with. In the production management system of the present embodiment, in the holding unit including the first and second cases (I, O) capable of holding a plurality of works respectively, the holding positions at which the plurality of works are held, and each work A work ID for identification is stored in association with one another. For example, an ID tag is attached to the case (inter-process transfer case), and the work in the case is managed by the work ID associated with the holding position address of the specific work in the case. Then, when the information on the holding position associated with the work ID in the storage unit (302) is changed from the first position in the first case to the second position, the work unit corresponds to the work ID in the storage unit. The information on the attached holding position is changed from the first position to the second position. In addition, when newly holding at the third position in the second case, the information on the holding position associated with the work ID in the storage unit is changed from the first position to the second position or the third position. It has changed. In addition, the storage unit (102) associates and stores the work ID and the information of the process executed on the work, and the control unit (1601) determines the work ID and the work based on the information of the holding position. It is configured to be stored in the storage unit in association with the information of the process executed in the step. The process information includes the processing conditions described above.

  For example, consider a case where the first work is moved from the first position to the second position and then moved from the second position to a fourth position different from the second position. At this time, the CPU (1601) as a control unit takes out information on steps performed between the first position and a new position at the second position in the storage unit (302). Based on the correspondence with the position, it is stored in the storage unit (102) in correspondence with the work ID of the first work. In addition, information on a process performed between the second position and a new position at a position different from the second position is associated with the second position in the storage unit (302). Are stored in the storage unit (303) in association with the work ID of the first work.

  Thus, the work process history database (101, 102, 103) can manage the process history of each specific work that can not be directly attached with the ID tag. For example, a palletizing number used in teaching data of a robot device that handles a case or a work can be used as a virtual work ID tag, in particular, a holding position address of a specific work in a case.

  That is, according to the present embodiment, it is possible to cope with a work to which the ID tag can not be attached directly. For example, it is possible to appropriately manage the production history for each work in a production system in which the production of an article (product) is performed in a state in which different work is held for each work in one production case. Therefore, a worker or a manager can refer to the production history managed by the database via the display device via the appropriate display output.

W: Work, 2 ... Inter-process transfer case, 3 ... ID tag, 6 ... Work layout display area, 7 ... Process history display area, 8 ... Case identification number display area, 11 ... Bar code reader, 13 ... Monitor, 101 .. Case information database 102: work history database 103: process operation history database 301: teaching information 302: work holding information 1022: manufacturing process 1601: CPU 1602: ROM 1603: RAM 1608: display 2002 ... store, 2003 ... customer.

Claims (26)

In the holding unit including the first and second cases capable of holding a plurality of workpieces, the holding position at which the first workpiece is held is associated with the workpiece ID for identifying the first workpiece. A stored storage unit,
When the first work held at the first position in the first case is newly held at a second position different from the first position in the first case, the work in the storage unit A controller configured to change information on the holding position associated with the ID from the first position to the second position;
Production control system characterized by The control unit corresponds to the work ID in the storage unit when the first work held at the first position in the first case is newly held at the third position in the second case. Changing the information of the attached holding position from the first position to the third position,
The production management system according to claim 1, characterized in that: The control unit assigns a new work ID to a first position of the first case after the first work is held at another position, and the first work is held at the first position. And store the work different from the work and the new work ID in the storage unit in association with each other
The production management system according to claim 1 or 2, characterized in that: The storage unit
Case IDs of the first and second cases and information of positions at which workpieces can be held in the first and second cases are stored in association with each other.
The production management system according to any one of claims 1 to 3, characterized in that. A case ID tag capable of identifying a case ID is physically attached to each of the first and second cases.
The production management system according to claim 4, characterized in that. The storage unit stores the work ID and information of a process performed on the work in association with each other.
The control unit causes the storage unit to store the work ID and information of a process performed on the work based on the information of the holding position.
The production management system according to any one of claims 1 to 4, characterized in that. The control unit
When moving the first work from the first position to the second position, and then moving from the second position to a fourth position different from the second position:
The information on the process performed from the first position to the new holding in the second position is based on the fact that the information is associated with the first position in the storage unit. Storing in the storage unit in association with the work ID of the first work,
Information on a process performed from when the second position is taken out to be newly held at a fourth position different from the second position is associated with the second position in the storage unit. Are stored in the storage unit in association with the work ID of the first work based on
The production control system according to claim 6, characterized in that. The information of the process includes abnormality information in the process,
The production management system according to claim 6 or 7, characterized in that The storage unit constitutes a part of a database apparatus connected to a network together with a production apparatus that performs the process performed on the work.
A production management system according to any one of claims 6 to 8, characterized in that. A display unit capable of displaying the holding position of the holding unit;
And an input unit capable of selecting the holding position of the holding unit,
In the display unit, when any one of the holding positions is selected, a history of process information stored in the storage unit in association with the work ID associated with the selected holding position is stored. Is displayed,
The production management system according to any one of claims 6 to 9, characterized in that. A display unit capable of displaying the holding position of the holding unit;
The display unit is configured to display that the holding position of the holding unit associated with the work ID includes abnormality information in the history of process information stored in the storage unit and that the holding position is abnormal. Made,
The production management system according to claim 8, characterized in that. The display unit can display the layout of the entire case including the holding position.
The production management system according to claim 10 or 11, characterized in that The display unit displays a history of information of the process along with a layout of the entire case.
The production control system according to claim 12, characterized in that. The information on the process performed on the workpiece is a processing condition,
A production management system according to any one of claims 6 to 13, characterized in that. When the processing condition is changed, a display indicating that the holding position of the holding unit associated with the work ID associated with the information of the process performed on the work before the change is abnormal is displayed. ,
The production management system according to claim 14, characterized in that. A display unit,
And a reader for reading identification information included in the case ID tag,
The display unit displays information corresponding to a case having identification information read by the reading device.
The production management system according to claim 5, characterized in that. The second case is a lens barrel, a lens holding unit inside a camera, or a circuit board.
The production management system according to any one of claims 1 to 9, characterized in that. A display unit for displaying an assembling procedure of the second case;
The production management system according to claim 17, characterized in that. The display unit displays the layout of the entire first case, and can select a component to be assembled to the second case from the layout of the entire first case.
The production management system according to claim 18, characterized in that. In the holding unit including the first and second cases capable of holding a plurality of workpieces, the holding position at which the first workpiece is held is associated with the workpiece ID for identifying the first workpiece. A stored storage unit,
When the first work held at the first position in the first case is newly held at a position in the second case different from the first position, the work ID and the work ID are stored in the storage unit. A control unit configured to change information of the holding position associated with the first position to a position in a second case in which the work is held;
Production control system characterized by Based on the production management system according to any one of claims 1 to 20,
Incorporate the lens into the barrel,
A method of manufacturing an interchangeable lens characterized by A lens manufactured based on the production control system according to any one of claims 1 to 20 is incorporated in a lens holding unit.
A camera characterized by An IC chip is mounted based on the production management system according to any one of claims 1 to 20,
A manufacturing method of a circuit board characterized by things.   The manufacturing method of the goods which performs the process with respect to the said workpiece | work using the production control system of any one of Claims 1-20, and manufactures goods. A production management method of managing a history of processes related to a work in a production line in which a process for the work is executed using a case capable of holding a plurality of works.
Using a case ID tag physically attached to the case and capable of identifying the specific case, and a work process history database for recording the production process history of each work,
A process related to the work using a case ID for identifying the case ID tag, which is recorded in the work process history database, by the control unit, and a work ID associated with the holding position of the work in the case. Database management process to manage the history of
Production control method characterized by   A computer readable recording medium storing a control program for causing the control unit to execute the database management step of the production management method according to claim 25.

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