WO2021100308A1 - Machine-outil, procédé de sortie de journal et système de sortie de journal - Google Patents

Machine-outil, procédé de sortie de journal et système de sortie de journal Download PDF

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Publication number
WO2021100308A1
WO2021100308A1 PCT/JP2020/035474 JP2020035474W WO2021100308A1 WO 2021100308 A1 WO2021100308 A1 WO 2021100308A1 JP 2020035474 W JP2020035474 W JP 2020035474W WO 2021100308 A1 WO2021100308 A1 WO 2021100308A1
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WIPO (PCT)
Prior art keywords
log
display
machine tool
screen
output
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PCT/JP2020/035474
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English (en)
Japanese (ja)
Inventor
俊徳 大内
純洋 清田
慎 井手上
裕司 宮西
英紀 武富
Original Assignee
Dmg森精機株式会社
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Application filed by Dmg森精機株式会社 filed Critical Dmg森精機株式会社
Priority to JP2020553551A priority Critical patent/JPWO2021100308A1/ja
Publication of WO2021100308A1 publication Critical patent/WO2021100308A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
    • G05B19/406—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by monitoring or safety
    • G05B19/4063—Monitoring general control system
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/30—Monitoring
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/30—Monitoring
    • G06F11/32—Monitoring with visual or acoustical indication of the functioning of the machine
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/30—Monitoring
    • G06F11/34—Recording or statistical evaluation of computer activity, e.g. of down time, of input/output operation ; Recording or statistical evaluation of user activity, e.g. usability assessment

Definitions

  • This disclosure relates to a technique for supporting analysis of multiple types of logs output from a machine tool.
  • Patent Document 1 discloses a machine tool equipped with an HMI (Human Machine Interface).
  • the HMI is an HMI that functions as a user interface. The user can perform various operations on the machine tool via the HMI.
  • FIG. 12 is a diagram showing an example of the configuration of the machine tool 10X.
  • the machine tool 10X includes an OS (Operating System) 30, an application 40, and a control device 50.
  • OS Operating System
  • OS30 is, for example, Windows (registered trademark).
  • the OS 30 provides various basic functions to the application 40.
  • Application 40 is, for example, an HMI that acts as a user interface.
  • the control device 50 is, for example, an NC (Numerical Control) unit.
  • the control device 50 controls the machine tool 10X according to the machining program to control the machining of the workpiece.
  • Each of the application 40, the OS 30, and the control device 50 outputs a log individually.
  • the user tries to find out the cause of the abnormality by checking various logs.
  • the logs output from each of the application 40, the OS 30, and the control device 50 are not related to each other, and the user takes a lot of time to analyze the logs. Therefore, a technique for supporting the analysis of various logs output from a machine tool is desired.
  • the above-mentioned Patent Document 1 does not disclose any configuration for outputting a log.
  • the machine tool has an operation screen, an operation panel for receiving an operation on the machine machine, a first OS (Operating System) for controlling the display of the operation screen, and a storage device.
  • the application that runs on the first OS and the second OS that is different from the first OS, controls the PLC (ProgrammableLogicController) according to the machining program, and inputs instructions to start machining the workpiece. It is provided with a control device that controls the machining of the workpiece after receiving the signal.
  • the application provides a function different from the control performed by the control device and provides a function related to the machine tool.
  • the first log output from the application upon receiving the operation from the operation screen of the operation panel and the second log output from the control device are synchronized with the time held by the first OS. It is stored in the above storage device.
  • the machine tool operates on a first OS (Operating System) and a second OS different from the first OS, and controls a PLC (Programmable Logic Controller) according to a machining program.
  • a control device that controls machining of the workpiece, an application that operates on the first OS, provides a function different from the control performed by the control device, and provides a function related to the machine tool, a display, and the like. It includes the first OS, the application, and a display control unit that displays each log output from the control device on the display.
  • Each of the logs displayed on the display includes the output time of the log, the identification information indicating the output source of the log, and the contents of the log.
  • FIG. 1 is a diagram showing the appearance of the machine tool 10.
  • machine tool refers to a concept that includes a machine tool that performs work removal processing (SM (Subtractive manufacturing) processing), a machine tool that performs work addition processing (AM (Additive manufacturing) processing), and the like. Is. Further, the machine tool 10 may be a vertical machining center or a horizontal machining center. Alternatively, the machine tool 10 may be a lathe, an additional processing machine, or another cutting machine or grinding machine.
  • SM Subtractive manufacturing
  • AM Additional manufacturing
  • the machine tool 10 which is an example of the present embodiment includes an operation panel 100 and a processing machine 200.
  • the operation panel 100 and the processing machine 200 are configured to be able to communicate with each other.
  • the operation panel 100 and the processing machine 200 may be connected wirelessly or by wire.
  • Ethernet registered trademark
  • Ethernet is adopted as the communication standard of the operation panel 100 and the processing machine 200.
  • the operation panel 100 functions as a display device.
  • the operation panel 100 is a computer and includes a display 105 (display means) and operation keys 106.
  • the display 105 displays various information related to processing.
  • the display 105 is, for example, a liquid crystal display, an organic EL (Electro Luminescence) display, or other display device.
  • the display 105 which is an example of the present embodiment, is composed of a touch panel, and accepts various operations on the machine tool 10 by touch operations. Of course, a display 105 that is not a touch panel may be used.
  • the operation key 106 is composed of a plurality of hardware keys and accepts various operations on the machine tool 10.
  • the processing machine 200 of the present embodiment will be described with an example of processing a work according to a processing program designed in advance, but the present invention is not limited to this.
  • it may be a processing machine that processes a work by manually operating the operation panel of the processing machine, or it may be a processing machine that processes a work according to a processing program created on the operation panel.
  • the user can give various machining instructions to the machining machine 200 from the operation panel 100.
  • FIG. 2 is a diagram showing an example of a configuration for realizing a log integration function.
  • the machine tool 10 includes an operation panel 100 and a processing machine 200.
  • the operation panel 100 includes an OS 30, an application 40, a clock unit 60, a log writing unit 61, a display control unit 66, a display 105, and a storage device 120.
  • the log writing unit 61 includes a log collecting unit 62 and a recorder 64.
  • the processing machine 200 has a control device 50.
  • the OS 30, the application 40, and the control device 50 function as a log output unit 20 and output logs individually.
  • the operation panel 100 has only the display 105, and the processing machine 200 controls the OS 30, the application 40, the clock unit 60, the log writing unit 61, the display control unit 66, and the storage device 120. It may be configured to have the device 50.
  • the physical operation panel of FIG. 1 has only a display 105 and an operation key 106, and when the operation key is pressed, the signal is sent to the processing machine 200 side and the log is written in the processing machine 200. Logs are collected in section 61.
  • OS30 is, for example, Windows (registered trademark).
  • the OS 30 may be a UNIX®-based OS such as Linux® or macOS.
  • the OS 30 provides various basic functions to the application 40.
  • the OS30 outputs, for example, a log related to its own performance.
  • the log includes a CPU (Central Processing Unit) usage rate (usage amount), a memory usage rate (usage amount), and the like.
  • the format of the log output by the OS 30 may be a text format or a structured format.
  • Application 40 runs on OS30.
  • Application 40 is, for example, an HMI that acts as a user interface.
  • the user interface accepts various operations (setting operations, etc.) for the machine tool 10 and displays various information for the machine tool 10.
  • the HMI is, for example, MAPPS manufactured by DMG Mori Seiki Co., Ltd.
  • the application 40 is not limited to HMI.
  • the application 40 may be a management application for managing machining information and a machining program, or another application related to machining.
  • the application 40 provides a function different from the control performed by the control device (NC unit) and also provides a function related to the machine tool.
  • various data spindle load, shaft speed, alarm, etc. acquired from the machine tool are used as data types.
  • connect-application an application that converts each data structure into a constant data structure and sends it to an external server or the like. This connect-application is different from the HMI application. If the data structure is different for each machine tool or each machine tool manufacturer, it becomes difficult to manage multiple machine tools.
  • This application is an application for converting various data acquired from a machine tool into a predetermined data structure and standardizing the data.
  • This application outputs a log of transmission when data is transmitted to an external server, and outputs a log of data conversion completion when conversion to a predetermined data structure is completed.
  • An example of an application that provides functions related to machine tools is an alarm application that handles alarm messages from applications such as NC units and HMIs.
  • a signal such as an input is received from the input means from these applications
  • a log such as the reception of the input signal is output.
  • the log that sent the alarm message to the target is output.
  • the application 40 outputs, for example, a log related to its own performance, an operation log such as the order of operations, and the like.
  • the log includes a screen switching time in HMI and the like.
  • the format of the log output by the application 40 may be a text format or a structured format.
  • the application 40 is operated by, for example, the operation panel 100, and outputs a log corresponding to the operation.
  • the control device 50 includes, for example, a numerical control device (NC unit) and a PLC (Programmable Logic Controller).
  • the PLC includes an OS provided separately from the OS 30.
  • the OS is a different type of OS than the OS 30.
  • the OS is, for example, a real-time OS.
  • the PLC controls a unit inside the control device 50 such as an NC unit.
  • the NC unit controls the machining machine 200 according to a pre-designed machining program based on the machining start command from the PLC. As a result, the control device 50 controls the machining of the work.
  • the control device 50 outputs, for example, a log related to its own performance or a log displaying a status.
  • the log includes a status display log that displays the ON / OFF status of the PLC signal.
  • the format of the log output by the control device 50 may be a text format or a structured format.
  • the logs output from each of the OS 30, the application 40, and the control device 50 are input to the log accumulation unit 62.
  • the log accumulation unit 62 functions as a buffer for sequentially storing input logs.
  • the buffer is reserved in a predetermined storage area in the storage device 120.
  • an in-memory database such as EventStore can be used as the log accumulation unit 62.
  • the clock unit 60 is a functional module for acquiring the current time information.
  • the current time information is acquired from, for example, a timekeeping function (timer) installed as standard in OS30.
  • the current time information may be acquired from an external device (for example, a server) configured to be able to communicate with the machine tool 10.
  • the log accumulation unit 62 stores a log sequentially output from the OS 30, a log sequentially output from the application 40, and a log sequentially output from the control device 50. At this time, the log accumulation unit 62 further associates the time information acquired from the clock unit 60 with the logs output from each of the OS 30, the application 40, and the control device 50. That is, since the time information from the same clock unit 60 is given to the logs collected in the log accumulation unit 62, the time axis of each log becomes the same.
  • the log accumulation unit 62 acquires the current time from the clock unit 60 based on each of the OS 30, the application 40, and the control device 50 outputting the log.
  • the log accumulation unit 62 associates the acquired current time with the log as the output time of the log, and buffers the set of the log and the output time.
  • the time information from the clock unit 60 shared among the OS 30, the application 40, and the control device 50 is associated with each log.
  • the logs output from each of the OS 30, the application 40, and the control device 50 are synchronized. That is, the time axis of each log is unified.
  • the log accumulation unit 62 When the data size of the log buffered in the log accumulation unit 62 reaches the upper limit, the log accumulation unit 62 overwrites the oldest log with a new log in order. By overwriting the log, the storage capacity of the log collecting unit 62 is maintained below a certain value. Further, by overwriting the oldest logs in order, a newer series of logs is left in the log collecting unit 62.
  • the recorder 64 sequentially reads the logs stored in the log collecting unit 62, and stores the read logs as the record log 124 in the storage device 120.
  • the size of the storage area reserved for the record log 124 in the storage device 120 is larger than the buffer size of the log collection unit 62.
  • the display control unit 66 is a functional module for controlling the display of the display 105 of the operation panel 100. As an example, the display control unit 66 displays the record log 124 on the display 105.
  • FIG. 3 is a diagram showing an example of the log screen 80 displayed on the display 105.
  • the output destination of the record log 124 is not limited to the display 105.
  • the record log 124 may be displayed on the user's PC via the server, or may be output as data.
  • the log screen 80 displays a part or all of the record log 124.
  • Each of the logs displayed as the record log 124 includes a log output time 81A, identification information 81B indicating a log output source, and log contents 81C.
  • the identification information 81B is information for uniquely identifying the output source.
  • the identification information 81B is, for example, the name of the log output source or the ID (Identification) of the log output source.
  • the machine tool 10 can assist the user in analyzing the log.
  • the time axis is the same. In the past, even if there was information on the output time, the OS, application, and control device had different time axes, so it was necessary to align the time axes, but that is no longer necessary.
  • the display control unit 66 displays each log displayed on the log screen 80 in the order of output time.
  • the time information associated with each log displayed on the log screen 80 is synchronized. Therefore, by displaying each log in the order of output time, the user can compare the logs before and after the time when an abnormality such as tool interference or software occurs, and the cause of the abnormality can be easily identified. It will be possible.
  • the user can synchronize and reproduce (simulate) the behavior of the operation panel 100 and the processing machine 200 by using the logs before and after the occurrence of an abnormality such as tool interference or software, and the cause of the abnormality can be easily caused. It will be possible to locate it. Furthermore, by loading the logs before and after the occurrence of an abnormality into a machine tool with the same specifications, the situation including machine operation can be reproduced. As a result, the user can easily identify the cause of the abnormality.
  • an abnormality such as tool interference or software
  • the log integration function shown in Fig. 2 has a new effect by adopting the following configuration.
  • the application 40 as the HMI sends a log acquisition request to the control device 50 of the processing machine 200 at predetermined monitoring cycles.
  • the control device 50 may be configured to voluntarily send logs to the log accumulation unit 62.
  • the operation panel 100 does not have to send a log acquisition request to the control device 50, and has a new effect of reducing the load on the CPU of the operation panel 100 and the control device 50 of the processing machine 200.
  • the control device may send the log to the log collecting unit 62 in response to the log acquisition request from the operation panel 100.
  • the log screen 80 shown in FIG. 3 allows the user to grasp the following. For example, from the logs of the OS 30 and the application 40, the user can check how much CPU load was applied to the screen switching in chronological order. Alternatively, the user can specify whether the setup work is in progress or the work is left unattended from the operation log when the application displayed on the operation panel 100 is operated and the in-flight camera image. Further, when it is possible to identify whether the setup work is in progress or the work is left unattended from the log output from the control device by pressing the operation key related to the control device of the operation panel 100 and the image of the in-flight camera. There is.
  • the user can open the door from the status log of the control device (NC unit) and the operation log when operating the application displayed on the screen of the operation panel 100 even though the door lock is released. It is possible to identify that it was not open. As a result, it is possible to grasp the possibility that the machine tool is left unattended and wasteful time that cannot be used for machining is generated.
  • the machine tool 10 extracts an operation log or the like that is considered to have caused an abnormality from the operation log of the application or the status log of the control device (NC unit) displayed on the screen of the operation panel 100.
  • the operation log can be displayed automatically.
  • the user can analyze the work efficiency of an individual such as who is taking time for which work.
  • the log output unit 20 includes the OS 30, the application 40, and the control device 50.
  • the log output unit 20 includes the OS 30, the application 40, and the control device 50. At least two with 50 may be included.
  • the log output unit 20 includes only the OS 30 and the application 40.
  • the log output unit 20 includes only the OS 30 and the control device 50.
  • the log output unit 20 includes only the application 40 and the control device 50.
  • the log output unit 20 includes an OS 30, an application 40, a control device 50, and another device or functional module having a log output function.
  • the server analyzes the record log 124 collected from each of the machine tools 10 using AI (Artificial Intelligence) to identify the work status.
  • AI Artificial Intelligence
  • the server may specify the period during which the setup work was performed, the period during which the person in charge was absent, and the like, based on the operation log of the operation panel 100 and the like.
  • the server may detect an operation error or a work error of an operator based on an operation log of the operation panel 100 or the like. The detection result is notified to an external device and is useful for improving the function.
  • the application 40 may be installed on another PC other than the operation panel 100.
  • the PC is placed on the control panel of the machine tool 10, for example, and functions as a server.
  • the log accumulation unit 62 collects logs from the application in the control panel and synchronizes the logs with other logs.
  • FIG. 4 is a diagram showing a log screen 80A according to the first modification.
  • the display control unit 66 (see FIG. 2) described above emphasizes the log that satisfies the predetermined normal / abnormal condition among the record logs 124 displayed on the display 105 of the operation panel 100 more than the other logs. Is displayed (see FIG. 4).
  • the normal / abnormal condition can be arbitrarily selected from, for example, a plurality of predetermined candidates for the normal / abnormal condition.
  • FIG. 4 shows "NC Status operating" as an example of normal conditions.
  • NC Status operating is a condition indicating that the NC unit was operating.
  • memory usage rate of 70% or more and “CPU usage rate of 80% or more” are shown as examples of abnormal conditions.
  • “Memory usage rate of 70% or more” is a condition indicating that the memory usage rate exceeds 70%.
  • CPU usage rate of 80% or more is a condition indicating that the CPU usage rate exceeds 80%.
  • highlighting columns 82A to 82C indicating whether or not the normal / abnormal condition is satisfied are displayed side by side in the record log 124.
  • the highlighting columns 82A to 82C are provided according to normal / abnormal conditions.
  • the highlighting column 82A indicates whether or not the normal condition of "NC Status is in operation" is satisfied.
  • the display control unit 66 highlights the line corresponding to the log satisfying the normal condition among the lines constituting the highlighting column 82A more than the other lines.
  • the log highlighted in the highlighting column 82A indicates that the NC unit was operating at the output time of the log.
  • the highlighting column 82B indicates whether or not the abnormal condition of "memory usage rate of 70% or more" is satisfied.
  • the display control unit 66 highlights the line corresponding to the log satisfying the abnormal condition among the lines constituting the highlighting column 82B more than the other lines.
  • the log highlighted in the highlighting column 82B indicates that the memory usage rate was 70% or more at the output time of the log.
  • the highlighting column 82C indicates whether or not the abnormal condition of "CPU usage rate of 80% or more" is satisfied.
  • the display control unit 66 highlights the line corresponding to the log satisfying the abnormal condition among the lines constituting the highlighting column 82C more than the other lines.
  • the log highlighted in the highlighting column 82C indicates that the CPU usage rate was 80% or more at the output time of the log.
  • the highlighting method in the highlighting columns 82A to 82C is arbitrary. As an example, logs that satisfy the normal / abnormal conditions are displayed in a different color from other logs. Alternatively, logs that satisfy the normal / abnormal conditions are displayed darker than other logs. Alternatively, logs that satisfy the normal / abnormal conditions are displayed in a font different from other logs.
  • logs satisfying the normal / abnormal conditions are displayed in different display modes between the highlighting columns 82A to 82C.
  • logs that satisfy the condition of "NC Status running” are displayed in green
  • logs that satisfy the condition of "memory usage rate of 70% or more” are displayed in yellow
  • the condition of "CPU usage rate of 80% or more” is displayed.
  • the logs to be filled are displayed in red.
  • the user can easily distinguish between normal / abnormal logs from a huge amount of logs, and the cause of the abnormal occurrence can be identified more quickly.
  • FIG. 5 is a diagram showing a log screen 80B according to the second modification.
  • the highlighting columns 82A to 82C are displayed side by side in the record log 124, and the logs satisfying the normal / abnormal condition are highlighted in the highlighting columns 82A to 82C.
  • the method of highlighting the log is different from the above-mentioned modification 1.
  • the display control unit 66 highlights the log itself that satisfies the normal / abnormal condition.
  • log 83A indicating the start / completion of the operation of the NC unit is highlighted.
  • Log 83B which indicates that the memory usage is 70% or higher, is highlighted.
  • Log 83C which indicates that the CPU usage is 80% or higher, is highlighted.
  • the log screen 80A according to the modification 1 and the log screen 80B according to the modification 2 may be combined. That is, the display control unit 66 may display the highlighting fields 82A to 82C side by side on the record log 124, and may highlight the log itself that satisfies the normal / abnormal condition.
  • FIG. 6 is a diagram showing a flow of log buffering processing by the log accumulation unit 62.
  • step S1 the log accumulation unit 62 receives the logs sequentially output from the OS 30, the logs sequentially output from the application 40, and the logs sequentially output from the control device 50, and sequentially buffers those logs. To do. At this time, each log is buffered in the log accumulation unit 62 in the order of output time. In the example of FIG. 6, the logs L1 to L10 are sequentially stored in the log collecting unit 62.
  • step S2 it is assumed that the data size of the log buffered in the log collecting unit 62 has reached a predetermined data size (upper limit value).
  • the log accumulation unit 62 overwrites the newly obtained log in order from the log with the oldest output time among the buffered logs. That is, the log buffered in the log collecting unit 62 is rewritten in the FIFO (First In First Out) format.
  • the oldest log L1 is overwritten with the new log L11.
  • FIG. 7 is a diagram schematically showing the functions of the recorder 64.
  • the recorder 64 stores the log buffered in the log collecting unit 62 in the storage device 120, and leaves the log in the storage device 120. At this time, the recorder 64 changes the storage mode of the log in the storage device 120 depending on whether or not an abnormality has occurred in the machine tool 10.
  • the recorder 64 extracts a part of each log buffered in the log collecting unit 62, and the extracted log is used as a simple log 124A.
  • a more detailed log (hereinafter, also referred to as “detailed log 124B”) buffered in the log collecting unit 62 is stored in a predetermined area (hereinafter, also referred to as “detailed log 124B”) in the storage device 120.
  • the amount of information per log of the detailed log 124B is larger than the amount of information per log of the simple log 124A.
  • the storage capacity of the storage area (second storage area) for the detailed log 124B is larger than the storage capacity of the storage area (first storage area) for the simple log 124A.
  • a plurality of detailed logs 124B before and after the occurrence of an abnormality are left in the above-mentioned second storage area. More specifically, when an abnormality occurs in the machine tool 10, the recorder 64 determines that the log output time of each log buffered in the log collecting unit 62 includes the time when the abnormality occurs. Acquire multiple logs belonging to the time (hereinafter, also referred to as "record time"). Then, the recorder 64 stores the acquired plurality of logs as the detailed log 124B. As a result, the logs output before and after the occurrence of the abnormality remain in the storage device 120.
  • the length of the record time can be changed according to the type of abnormality that has occurred.
  • the recorder 64 specifies the record time corresponding to the occurrence of the abnormality based on the record time information in which the length of the record time is defined by the type of abnormality. Then, the recorder 64 stores the log belonging to the record time based on the abnormality occurrence time as the detailed log 124B.
  • the log for the record time may not remain in the storage area for the simple log 124A. In that case, as many logs as possible remaining in the storage area are acquired.
  • the recorder 64 selectively acquires logs according to the type of abnormality that has occurred in the machine tool 10. More specifically, as described in FIG. 3 above, each log output from the OS 30, the application 40, and the control device 50 has a log output time 81A, an identification information 81B indicating a log output source, and the like. , Includes multiple types of information such as log content 81C.
  • the recorder 64 changes the log information to be stored according to the type of abnormality generated in the machine tool 10. As an example, the log information to be stored is predetermined for the type of abnormality. In this way, by leaving the information corresponding to the occurrence of the abnormality as the detailed log 124B, not only the information of the log indicating the cause of the abnormality can be left, but also the storage capacity can be reduced.
  • the simple log 124A and the detailed log 124B can be read by various viewers.
  • the simple log 124A and the detailed log 124B can be read by a dedicated display tool 85A or another display tool 85B such as a GUI (Graphical User Interface) analysis tool or a graph display tool.
  • a GUI Graphic User Interface
  • FIG. 8 is a schematic view showing an example of the hardware configuration of the operation panel 100.
  • the operation panel 100 includes a processor 101, a ROM (Read Only Memory) 102, a RAM (Random Access Memory) 103, a communication interface 104, a display 105, an operation key 106, and an auxiliary storage device 115. These components are connected to bus 110.
  • the ROM 102, the RAM 103, and the auxiliary storage device 115 are examples of the above-mentioned storage device 120 (see FIG. 8).
  • the processor 101 is composed of, for example, at least one integrated circuit.
  • the integrated circuit is, for example, at least one CPU (Central Processing Unit), at least one GPU (Graphics Processing Unit), at least one ASIC (Application Specific Integrated Circuit), at least one FPGA (Field Programmable Gate Array), or theirs. It may be composed of a combination of.
  • the processor 101 controls the operation of the operation panel 100 by executing various programs such as the information processing program 130 and the operating system.
  • the information processing program 130 is a program for realizing the above-mentioned log collection and log display.
  • the processor 101 reads the information processing program 130 from the auxiliary storage device 115 or the ROM 102 into the RAM 103 based on the reception of the execution instruction of the information processing program 130.
  • the RAM 103 functions as a working memory and temporarily stores various data necessary for executing the information processing program 130.
  • a LAN Local Area Network
  • an optical cable an antenna, etc. are connected to the communication interface 104.
  • the operation panel 100 is connected to various devices such as the processing machine 200 via the communication interface 104, for example. As a result, the operation panel 100 exchanges data with the NC unit in the processing machine 200.
  • the display 105 is, for example, a liquid crystal display, an organic EL display, or other display device.
  • the display 105 sends an image signal for displaying an image to the display 105 in accordance with a command from the processor 101 or the like.
  • the above-mentioned log screens 80, 80A, 80B (see FIGS. 3 to 5) and the like are displayed on the display 105.
  • the display 105 may be integrally configured with the operation panel 100, or may be configured separately from the operation panel 100.
  • the operation key 106 is composed of a plurality of hardware keys and accepts various user operations on the operation panel 100. A signal corresponding to the pressed key is output to the processor 101.
  • the auxiliary storage device 115 is, for example, a storage medium such as a hard disk or a flash memory.
  • the auxiliary storage device 115 stores the OS 30, the application 40, the record log 124, the information processing program 130, and the like. These storage locations are not limited to the auxiliary storage device 115, and may be stored in a storage area of the processor 101 (for example, a cache memory), a ROM 102, a RAM 103, an external device (for example, a server), or the like.
  • the information processing program 130 may be provided by being incorporated into a part of an arbitrary program, not as a single program. In this case, the log integration process by the information processing program 130 is realized in cooperation with an arbitrary program. Even a program that does not include such a part of modules does not deviate from the purpose of the information processing program 130 according to the present embodiment. Further, some or all of the functions provided by the information processing program 130 may be realized by dedicated hardware. Further, the operation panel 100 may be configured in the form of a so-called cloud service in which at least one server executes a part of the processing of the information processing program 130.
  • the hardware configuration of the operation panel 100 is not limited to the example of FIG.
  • the operation panel 100 may be composed of the display 105 and the operation keys 106.
  • a processor different from the processor 101 and an auxiliary storage device different from the auxiliary storage device 115 are provided in the processing machine 200.
  • FIG. 9 is a flowchart showing the flow of log buffering processing by the log accumulation unit 62.
  • FIG. 9 The process shown in FIG. 9 is realized by the processor 101 of the operation panel 100 executing the above-mentioned information processing program 130 (see FIG. 8). In other aspects, some or all of the processing may be performed by circuit elements or other hardware.
  • step S110 the processor 101 determines whether or not the log is output from the output source to be monitored.
  • the monitoring target includes, for example, at least two of the OS 30, the application 40, and the control device 50.
  • the processor 101 determines that the log has been output from the output source to be monitored (YES in step S110)
  • the processor 101 switches the control to step S112. If not (NO in step S110), processor 101 ends the process shown in FIG.
  • step S112 the processor 101 acquires the current time from the above-mentioned clock unit 60 (see FIG. 2).
  • step S120 the processor 101 determines whether or not the data size of the log stored in the above-mentioned log accumulation unit 62 (see FIG. 2) exceeds a predetermined upper limit value.
  • the processor 101 determines that the data size of the log stored in the log accumulation unit 62 exceeds a predetermined upper limit value (YES in step S120)
  • the processor 101 switches the control to step S122. If not (NO in step S120), processor 101 switches control to step S124.
  • step S122 the processor 101 deletes the log having the oldest output time from the log collecting unit 62 among the logs stored in the log collecting unit 62.
  • step S124 the processor 101 associates the identification information for identifying the log output source with the current time information acquired in step S112 with the contents of the log, and writes them in the log accumulation unit 62.
  • the log output source may write the log directly to the log accumulation unit 62.
  • FIG. 10 is a flowchart showing the flow of log record processing by the recorder 64.
  • FIG. 10 The process shown in FIG. 10 is realized by the processor 101 of the operation panel 100 executing the above-mentioned information processing program 130 (see FIG. 8). In other aspects, some or all of the processing may be performed by circuit elements or other hardware.
  • step S130 the processor 101 determines whether or not an abnormality has occurred in the machine tool 10.
  • the processor 101 determines that an abnormality has occurred in the machine tool 10 (YES in step S130)
  • the processor 101 switches the control to step S132. If not (NO in step S130), processor 101 switches control to step S140.
  • step S132 the processor 101 functions as the recorder 64 (see FIG. 2) described above, and stores the detailed log 124B, which is a part or all of each log buffered in the log collecting unit 62, in the storage device 120. .. Since the storage mode of the detailed log 124B is as described in FIG. 7 above, the description will not be repeated.
  • step S140 it is determined whether or not the new log to be recorded is stored in the log accumulation unit 62 (see FIG. 2) described above.
  • the log to be recorded includes, for example, at least two logs output from the OS 30, a log output from the application 40, and a log output from the control device 50.
  • the log to be recorded may be preset or arbitrarily set by the user.
  • the processor 101 determines that the new log to be recorded is stored in the log accumulation unit 62 (YES in step S140)
  • the processor 101 switches the control to step S142. If not (NO in step S140), processor 101 returns processing to step S130.
  • step S142 the processor 101 functions as the recorder 64 (see FIG. 2) described above, extracts a part of the log of the record target buffered in the log accumulation unit 62, and uses the extracted log as the simple log 124A.
  • the amount of information per log of the simple log 124A stored in step S142 is smaller than the amount of information per log of the detailed log 124B stored in step S132. Since the storage mode of the simplified log 124A is as described in FIG. 7 above, the description will not be repeated.
  • step S142 is executed according to the determination result of step S130, but the process of step S142 may be executed regardless of the determination result of step S130.
  • the process of step S142 is executed in parallel with the flowchart shown in FIG. 10, and the simple log 124A is always stored.
  • FIG. 11 is a flowchart showing a flow of display processing of the record log 124 by the display control unit 66.
  • the process shown in FIG. 11 is realized by the processor 101 of the operation panel 100 executing the above-mentioned information processing program 130 (see FIG. 8). In other aspects, some or all of the processing may be performed by circuit elements or other hardware.
  • step S150 the processor 101 determines whether or not the display instruction of the record log 124 has been accepted.
  • the display instruction is issued, for example, based on activating the display tool of the record log 124.
  • the processor 101 switches the control to step S152. If not (NO in step S150), processor 101 ends the process shown in FIG.
  • step S152 the processor 101 displays the record log 124 on the display 105 of the operation panel 100.
  • step S154 the processor 101 highlights a log satisfying a predetermined condition more than other logs. Since the method of highlighting the log is as described in FIGS. 4 and 5, the description will not be repeated.
  • FIG. 13 is a diagram showing another example of the configuration for realizing the log integration function.
  • the machine tool 10 shown in FIG. 2 described above integrated the logs by using the time information of the clock unit 60A provided separately from the OS 30.
  • the machine tool 10 shown in FIG. 13 integrates the logs by using the time information of the clock unit 60A in the OS 30.
  • the machine tool 10 shown in FIG. 13 is different from the machine tool 10 shown in FIG. 2 in that it has a format unification unit 65.
  • the OS30 includes a clock unit 60A.
  • the clock unit 60A is a timekeeping function that is installed as standard equipment in the OS 30. This is a functional module for acquiring the current time information.
  • the log accumulation unit 62 stores various logs sequentially output from the log output unit 20 such as the OS 30, the application 40, and the control device 50. At this time, the log accumulation unit 62 associates the time information acquired from the clock unit 60A with various logs sequentially output from the log output unit 20. As a result, the time information output from the clock unit 60A of the OS 30 serves as a reference for the output time of various logs.
  • the format unification unit 65 unifies the formats of various logs sequentially output from the log output unit 20.
  • the format of the log output from the OS 30 is composed of, for example, the date when the log was output, the log output time, the CPU temperature, and the CPU usage rate.
  • OS30 outputs the log “" 07/15/2019 "," 17: 17: 12.419 “,” 328 ",” 14.0910342 "”.
  • the format of the log output from the application 40 as an HMI is, for example, the date when the log was output, the time of the log, the log level, the name of the application from which the log is output, and the contents such as operation information for the application. Consists of.
  • the application 40 is a log "2019-07-15 17: 15: 49,384 INFO Application that provides a function different from the control performed by the control device and a function related to a machine tool Operation LOG: KEY: KeyDown: G". Is output.
  • the format of the log output from the control device 50 is composed of, for example, the contents of the log and the time of the log.
  • the contents of the log include operation information such as reset key input.
  • the control device 50 outputs the log "MDI P_ ⁇ RESET> 17:44:03".
  • the format unification unit 65 defines the format of the log output from the OS 30, the format of the log output from the application 40, and the format of the log output from the control device 50 in advance (hereinafter, "unified format"). It is also called.).
  • the unified format consists of the date when the log was output, the time when the log was output, the log level, the log output source, and the log contents such as operation information.
  • the date and the time are times obtained from the clock unit 60A.
  • the format unification unit 65 rewrites the time information of the log output from each of the application 40 and the control device 50 with the time acquired from the clock unit 60A, and does not rewrite the time information of the log output from the OS 30. This is because the log output from the OS 30 is originally generated based on the time of the clock unit 60A.
  • the processing of the time information of the time unit independently owned by the NC unit is also delayed, and the time information of the clock unit 60A of the OS 30 on which the application is executed may differ.
  • the processing between the NC unit and OS30 will correspond when the log information is output to find the cause when the movement of the machine tool is different from the normal one. You haven't done that. Therefore, conventionally, it has been necessary to first adjust the time information of the NC unit and the time information of the OS30, and investigate the correspondence between the processing of the NC unit and the processing of the OS in the unified time information. By unifying the time information in the clock section like this time, it is easy to search for the cause.
  • the present embodiment is not limited to this mode. Even if the OS 30 has a clock unit for ticking the time to be associated with the log, the log output from the OS 30 may be processed in the same manner as other logs and the time may be rewritten.
  • FIG. 14 is a diagram showing the contents of the record log 124 in detail.
  • the record log 124 includes logs D1 to D3.
  • Log D1 is a log obtained by modifying the log output from the application 40 according to the unified format.
  • the log D2 is a log obtained by modifying the log output from the OS 30 according to the unified format.
  • the log D3 is a log obtained by modifying the log output from the control device 50 according to the unified format.
  • the format unification unit 65 does not necessarily have to be mounted on the recorder 64.
  • the log shaping function can be implemented not only in the recorder 64 but also in other functional configurations such as the display control unit 66.
  • FIG. 15 is a diagram showing a log screen 80C.
  • the log screen 80C shown in FIG. 15 is different from the log screen 80A shown in FIG. 4 in the content of the record log 124.
  • the broken line portion 86A of the log screen 80C shows a log related to screen switching in the HMI (application 40).
  • the log related to screen switching includes a log indicating that the screen display operation on the display 105 has been accepted and a log indicating that the screen display on the display 105 has been completed.
  • the user can identify that it took 2 seconds or more to switch the screen of the HMI by checking the log in the broken line portion 86A.
  • the user can also identify that it takes about 500 msec from the press of the HMI screen switching button to the start of screen switching.
  • the user confirms the highlight fields 82A to 82C corresponding to the broken line portion 86A.
  • the user can grasp that the memory usage is large and the CPU usage rate is high, and it can be inferred that there is a problem in the internal processing and the screen switching processing related to the completion of the operation.
  • the broken line portion 86B of the log screen 80C shows a log related to screen switching in HMI.
  • the screen constituting the HMI includes a screen for acquiring information received from the NC device (control device 50).
  • the NC device performs processing with a large amount of calculation, the reception of information from the NC device to the HMI is delayed, and the switching to the screen and the update of the screen are delayed.
  • the user confirms the highlighting columns 82A to 82C corresponding to the broken line portion 86B.
  • the user can identify that the memory usage is large and the CPU usage rate is high in the first half (about 1 second) of the screen switching.
  • the user can identify from the contents of the log of the broken line portion 86B that the function window switching process is being executed and the response from the NC unit is slow.
  • the user can presume that the cause of the delay in screen switching is that the load on the NC unit is high and it takes time to acquire the information necessary for display.
  • FIG. 16 is a diagram showing a log 125 output from the application 40.
  • the synchronization log shown in FIG. 15 allows the user to easily infer the cause of the anomaly.
  • FIG. 17 is a diagram showing a user interface 90 provided by the HMI.
  • the user interface 90 is displayed on the display 105 of the operation panel 100.
  • the user interface 90 includes an icon display area AR and functional windows SC1 to SC6 that function as screen display areas.
  • a shortcut icon for opening the screen is displayed in the icon display area AR.
  • Each of the shortcut icons is associated with a predetermined screen.
  • the user interface 90 is configured to accept a selection operation of a shortcut icon displayed in the icon display area AR and a selection operation of the function windows SC1 to SC6.
  • the user interface 90 displays the screen associated with the shortcut icon selected from the plurality of shortcut icons displayed in the icon display area AR in the selected function window in the plurality of function windows SC1 to SC6. indicate.
  • the size of the functional windows SC6 is larger than the sizes of the functional windows SC1 to SC5.
  • Each of the functional windows SC1 to SC6 functions as a display area of the screen and displays various information related to processing.
  • the tool information display screen is displayed on the function window SC1.
  • the shape parameter of the tool, the wear amount parameter of the tool, and the like are displayed.
  • a modal information display screen is displayed on the function window SC2.
  • a work offset setting screen is displayed on the function window SC3.
  • the user sets a reference point of the work in the three-dimensional space on the setting screen.
  • the reference point is referred to in a machining program or the like.
  • the coordinate system display screen is displayed on the function window SC4. On the display screen, various coordinate systems recognized by the machining program are displayed.
  • a machining program related to foreground operation is displayed on the functional window SC5.
  • a tool offset setting screen is displayed on the function window SC6.
  • the tool correction value is displayed.
  • the tool correction value includes, for example, a shape parameter indicating the shape of the tool and a wear parameter indicating the amount of wear of the tool.
  • FIG. 18 is a diagram showing shortcut icons IC1 to IC8, which are examples of shortcut icons that can be displayed in the icon display area AR.
  • Each of the shortcut icons IC1 to IC8 is associated with a predetermined screen.
  • the shortcut icons IC1 to IC8 represent thumbnails of the associated screens. This makes it easier to distinguish the shortcut icons IC1 to IC8.
  • the number of shortcut icons in the icon display area AR is arbitrary.
  • the user can configure the icon display area AR with any combination of shortcut icons.
  • the number and size of the function windows in the user interface 90 are arbitrary.
  • the user can configure the user interface 90 with any combination of functional windows.
  • FIG. 19 is a diagram showing a reference example user interface 90X for comparison with the user interface 90 shown in FIG.
  • the user When displaying a specific screen on the user interface 90X, the user first presses the mode switching button BT1 to switch the operation mode to the screen set editing mode. Next, the user presses the expansion button BT2 to open the list of major categories, and selects the major category including the screen to be displayed. Next, the user presses the expansion button BT3 to open the list of middle classifications, and selects the middle classification including the screen to be displayed. Next, the user moves the screen to a place to be displayed while holding down the button BT4 representing the screen to be displayed, so that the screen is displayed at an arbitrary place. Next, the mode switching button BT1 is pressed to end the screen set editing mode.
  • the user performs the button pressing operation four times and the drag and drop operation once to display the target screen on the user interface 90X. Can be done.
  • the user interface 90 shown in FIG. 17 the user can display the target screen on the user interface 90 by one drag and drop operation.
  • FIGS. 20 and 21 are diagrams showing an example of screen transition of the user interface 90.
  • step S11 it is assumed that the user presses the shortcut button BT.
  • the operation panel 100 displays a list of shortcut icons in the icon display area AR.
  • step S12 the user presses the shortcut icon IC related to the screen to be displayed from the list of shortcut icons displayed in the icon display area AR.
  • step S13 the user moves the shortcut icon IC to the desired location while pressing the shortcut icon IC.
  • the shortcut icon IC has been moved to the location of the function window SC1. The user then lifts his or her finger from the display 105.
  • step S14 the operation panel 100 displays a screen associated with the shortcut icon IC in the function window SC1A of the user interface 90. After that, the operation panel 100 hides the list of shortcut icons.
  • the log output by HMI includes the operation log in steps S11 to S14.
  • the log output by the HMI includes a log indicating that the screen display operation on the display 105 has been accepted and a log indicating that the screen display on the display 105 has been completed.
  • the log indicating that the screen display operation on the display 105 has been accepted includes the screen type of the shortcut icon selected in step S12 and the selection time of the screen.
  • the log indicating that the display of the screen on the display 105 is completed includes the type of the screen displayed in step S14 and the time when the display of the screen is completed.
  • FIGS. 20 and 21 have described an example in which the operation of opening the target screen at the target location is performed by the drag and drop operation, the opening operation is not necessarily performed by the drag and drop operation. There is no need.
  • the opening operation may be realized by sequentially performing an operation of pressing a shortcut icon included in the icon display area AR and an operation of pressing any of the function windows SC1 to SC6.
  • the machine tool 10 when the machine tool 10 receives a log from the OS 30, the application 40, the control device 50, or the like, the machine tool 10 acquires and acquires the time information shared between the OS 30, the application 40, and the control device 50. The set of the collected log and the acquired time information is stored in the storage device 120. As a result, the machine tool 10 can synchronize the logs output from different output sources, and can compare various logs with a common time index.
  • 10,10X machine machine 20 log output unit, 40 application, 50 control device, 60, 60A clock unit, 61 log writing unit, 62 log accumulation unit, 64 recorder, 65 format unification unit, 66 display control unit, 80, 80A, 80B, 80C log screen, 81A output time, 81B identification information, 81C content, 82A, 82B, 82C highlighting column, 83A, 83B, 83C, 125 log, 85A, 85B display tool, 86A, 86B broken line part, 90 , 90X user interface, 100 operation panel, 101 processor, 102 ROM, 103 RAM, 104 communication interface, 105 display, 106 operation keys, 110 bus, 115 auxiliary storage device, 120 storage device, 124 record log, 124A simple log, 124B Detailed log, 130 information processing program, 200 processing machine.

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Abstract

La présente invention concerne une machine-outil comprenant : un panneau de commande ayant un écran de commande par l'intermédiaire duquel une opération de machine-outil est reçue ; un premier système d'exploitation (OS) pour commander l'affichage du panneau de commande ; un dispositif de stockage ; une application qui fonctionne avec le premier système d'exploitation ; et un dispositif de commande qui fonctionne avec un second système d'exploitation séparé du premier système d'exploitation, commande un automate programmable industriel (API) selon un programme d'usinage et commande l'usinage d'une pièce à usiner après que l'entrée d'une instruction de démarrage de l'usinage de la pièce à usiner est reçue. L'application fournit une fonction qui diffère de la commande effectuée par le dispositif de commande, et fournit une fonction qui se rapporte à la machine-outil. Un premier journal émis par l'application lors de la réception d'une opération à partir de l'écran de commande du panneau de commande et un second journal émis par le dispositif de commande sont stockés dans le dispositif de stockage en synchronisation avec la période maintenue par le premier système d'exploitation.
PCT/JP2020/035474 2019-11-20 2020-09-18 Machine-outil, procédé de sortie de journal et système de sortie de journal WO2021100308A1 (fr)

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