Machine tools

Abstract

Provided is a machine tool that is able to execute a countermeasure for an abnormality more quickly.　This machine tool comprises a display unit, a display operating device that has a receiving unit for receiving an operation instruction, and a control device that executes a process for displaying information on the display unit and a process based on the operation instruction received by the receiving unit. The control device has: a display processing unit that, when an abnormality has occurred in the machine tool, displays, on the display unit, countermeasure instruction information for instructing a countermeasure with regard to the abnormality, and a function execution button associated with the countermeasure instruction information, and displays, on the display unit, a character that suggests that the function execution button is a button for executing a support function related to the countermeasure instruction information; and a function processing unit that executes the support function on the basis of the selection of the function execution button displayed on the display unit.

Description

[Technical Field]

[0001] The present disclosure relates to a method for displaying an abnormality when it occurs in a machine tool. [Background technology]

[0002] Various machine tools that display information about abnormalities have been proposed in the past. For example, the transfer device in Patent Document 1 below displays the abnormal status of each machining unit on the operation panel of that machining unit. The transfer device displays text such as "Abnormality Reset," "System Abnormality," "Tool Abnormality," and "Main Menu" in the operation screen area, and displays switches such as "F1" below the text. For example, when the "Tool Abnormality" switch is turned on, the transfer device graphically displays the tool in which the abnormality occurred. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 5-277859 (Figs. 9 and 11) Summary of the Invention [Problem to be solved by the invention]

[0004] In the transfer device described above, in addition to the text "Tool Abnormal" related to the tool where the abnormality occurred, text such as "Abnormal Reset" and a switch corresponding to that text are displayed. However, with this transfer device, when an abnormality occurs, it is difficult for the user to know which switch to operate just by looking at the displayed text. For this reason, there is room for improvement in the method of displaying when an abnormality occurs.

[0005] The present disclosure has been made in consideration of the above-mentioned problems, and aims to provide a machine tool that can more quickly implement measures to deal with abnormalities. [Means for solving the problem]

[0006] In order to solve the above problem, the present disclosure provides a display / operation device having a display unit and a reception unit that receives an operation instruction, a control device that executes a process of displaying information on the display unit and a process based on the operation instruction received by the reception unit, a power supply device; a breaker provided in a control panel, which cuts off the power supply from the power supply device by opening its contacts; a display processing unit that, when an abnormality occurs in the machine tool, displays, on the display unit, countermeasure instruction information instructing a countermeasure for the abnormality and a function execution button associated with the countermeasure instruction information, and displays, on the display unit, a character indicating that the function execution button is a button for executing a support function associated with the countermeasure instruction information; and a function processing unit that executes the support function based on the function execution button displayed on the display unit being selected; the display processing unit, when the abnormality that opens the breaker occurs, displays on the display unit the countermeasure instruction information that instructs a countermeasure to close the breaker, and the function processing unit, when the abnormality that opens the breaker occurs, executes a function of displaying on the display unit, as the support function, an image showing the control panel of the machine tool. A machine tool is disclosed. [Effects of the Invention]

[0007] According to the machine tool disclosed herein, when an abnormality occurs, countermeasure instruction information and a function execution button are displayed. The machine tool also displays text indicating that this function execution button executes a support function related to the countermeasure instruction information. This allows the user to check the countermeasure instruction information and determine from the text which support function to execute, and to execute the desired support function by selecting the function execution button. Therefore, countermeasures for the abnormality can be implemented more quickly by displaying countermeasures based on the countermeasure instruction information, suggesting support functions in text, and executing support functions based on the selection of the function execution button. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a block diagram of an abnormality notification system including a machine tool according to an embodiment of the present invention. [Figure 2] FIG. 10 is a diagram showing an abnormality notification screen displayed on a touch panel of the machine tool. [Figure 3] FIG. 10 is a diagram showing a ladder circuit for detecting an abnormality. [Figure 4]FIG. 10 is a diagram showing a screen displaying a control panel layout diagram. [Figure 5] FIG. 10 is a diagram showing a signal confirmation screen. DETAILED DESCRIPTION OF THE INVENTION

[0009] (Abnormality Notification System 1) An embodiment of a machine tool according to the present disclosure will now be described with reference to the drawings. Fig. 1 shows a block diagram of an abnormality notification system 1 including a machine tool 10 according to this embodiment. As shown in Fig. 1, the abnormality notification system 1 includes the machine tool 10, a mail server 11, and a vendor server 13. The machine tool 10 is capable of communicating with the mail server 11 and the vendor server 13 via a network 15. The network 15 includes, for example, the Internet or a local area network.

[0010] Machine tool 10 is a device that performs machining on a workpiece. If an abnormality occurs in machine tool 10, machine tool 10 notifies the user of the occurrence of the abnormality. Machine tool 10 notifies each person in charge (such as a line manager, described below) of the abnormality by email via mail server 11, for example. Mail server 11 may be a mail server on the same local area network as machine tool 10, or may be a mail server on the Internet. Machine tool 10 also notifies vendor server 13 based on user operation. Vendor server 13 is, for example, a vendor server managed by the manufacturer of machine tool 10. Note that email notification may be performed by a device other than machine tool 10. For example, a PC connected to machine tool 10 may send emails to each person in charge based on abnormality information obtained from machine tool 10.

[0011] (machine tool 10) Next, the machine tool 10 will be described. The machine tool 10 includes a power supply unit 21, a processing unit 22, a loader 23, a control device 25, a controller 26, a display / operation device 27, an external IF (abbreviation for interface) 28, and the like. The external IF 28 is, for example, a LAN interface, and is connected to a router connected to the network 15 via a LAN cable or wireless LAN. The power supply unit 21 functions as a power source that supplies power to each device included in the machine tool 10. The power supply unit 21 receives power, for example, from a power source in a factory where the machine tool 10 is installed, and generates three-phase AC power to be supplied to a three-phase motor that serves as the drive source for each device included in the machine tool 10, and DC power to drive sensors and switches included in each device. The devices referred to here are the processing unit 22, the loader 23, the control device 25, the controller 26, and the like.

[0012] The machining device 22 is, for example, a lathe equipped with a spindle device that grips and rotates a workpiece and a turret device that performs machining on the workpiece gripped by the spindle device using a tool. The machining device 22 is, for example, a multi-axis lathe equipped with multiple combinations of spindle devices and turret devices. Note that the machining device 22 is not limited to a lathe, and may be other machining devices such as a machining center, milling machine, or drill press. Furthermore, the machining device 22 may be configured to have only one combination of a spindle device and a turret device, or may be a composite machining device equipped with both a lathe and a machining center.

[0013] The loader 23 is a workpiece transport device that includes a head for gripping the workpiece and a moving device for moving the head, and transfers the workpiece between the processing device 22 and other devices (apparatus for preceding or following processes). The operations of the processing device 22 and the loader 23 are controlled under the control of a control device 25. The machine tool 10 also includes a breaker 29 in the power line that supplies power from the power supply device 21 to each device. A plurality of breakers 29 are provided corresponding to each device and the equipment included in each device, and switch the power supply from the power supply device 21 to each device, etc., and cut off the power supply from the power supply device 21 to each device, etc., by opening the contacts. The plurality of breakers 29 are provided on a control panel 31 of the machine tool 10. To avoid cluttering the drawing, FIG. 1 omits the illustration of some of the devices included in the machine tool 10.

[0014] The control device 25 includes a control unit 33 and a memory unit 35. The control unit 33 is a processing device mainly composed of a computer and equipped with a CPU, etc., and controls the overall operation of each device equipped in the machine tool 10. The memory unit 35 includes, for example, RAM, ROM, flash memory, etc. The memory unit 35 stores control data 37, contact information 38, and schedule data 39. The control data 37 is a program (such as an NC program) for controlling the machining device 22 and various setting data. The control unit 33 controls the operation of each device by executing the control data 37 program with the CPU. The various setting data is, for example, data on conditions for detecting abnormalities in the machine tool 10. The various setting data also stores image and text information for displaying a control panel layout diagram 83 (see FIG. 4) and a signal confirmation screen 91 (see FIG. 5), which will be described later. In the following description, the device that executes the program may be simply referred to by its device name. For example, "the control device 25 changes the display of the touch panel 51 of the display operation device 27" means "the control device 25 executes a program in the CPU of the control unit 33 and controls the touch panel 51 of the display operation device 27, thereby changing the display of the touch panel 51."

[0015] Contact information 38 is contact information for the line manager, maintenance department, and manufacturer. When an abnormality occurs, machine tool 10 notifies the user of the abnormality based on contact information 38. The line manager is the manager of the production line on which machine tool 10 is installed. For example, the line manager is a person with higher technical skills and greater knowledge than the workers who work on the production line in charge of the line. When an abnormality occurs that the workers cannot handle, the line manager will take appropriate action to deal with the abnormality using his or her high technical skills and extensive knowledge. Contact information 38 stores the email addresses and mobile phone numbers of the line managers of each production line. Note that one or more line managers may be appointed for one production line. In the case of multiple line managers, the email addresses, etc. of each line manager may be set in contact information 38.

[0016] The maintenance department is, for example, a specialized department in the company that owns the machine tool 10 that is responsible for repairing the machine tool 10. Contact information 38 stores the email addresses and mobile phone numbers of one or more employees belonging to the maintenance department. The manufacturer is the manufacturer that manufactures the machine tool 10. Contact information 38 stores the email address and telephone number of the manufacturer's repair department. Note that the above-described content of contact information 38 is an example. For example, contact information 38 may be configured to include contact information for at least one of the line manager, maintenance department, and manufacturer. Contact information 38 may also include contact information for a party other than the line manager, maintenance department, and manufacturer, such as contact information for a repair company commissioned by the manufacturer to perform repair work. Contact information 38 is not limited to email addresses and telephone numbers. For example, contact information 38 may be information on the URL of a homepage that accepts repair requests for vendor server 13. When an abnormality, as described below, occurs, machine tool 10 may access the URL of vendor server 13 and automatically input information about the abnormality. Furthermore, contact information 38 may be configured to include only one of an email address or a telephone number. That is, machine tool 10 may notify an abnormality by only one of email or telephone.

[0017] Schedule data 39 is information relating to the schedules of the line manager and each person in charge in the maintenance department. Schedule data 39 stores, for example, information on the work schedule and vacation schedule of each person in charge, such as the line manager. When an abnormality, as described below, occurs, machine tool 10 changes the contact method based on schedule data 39. The method of setting schedule data 39 is not particularly limited. For example, machine tool 10 may obtain schedule information via network 15 from a server that manages the schedule. It should be noted that machine tool 10 does not need to be provided with schedule data 39. In other words, machine tool 10 does not need to change the contact information based on schedule data 39.

[0018] The controller 26 is, for example, a programmable logic controller (PLC) and includes a control unit 41 and a storage unit 43. The control unit 41 is a processing device mainly including a computer and a CPU, and controls the operation of the controller 26. The storage unit 43 is, for example, a RAM, a ROM, a flash memory, or the like, and stores a ladder program 45 for constructing a ladder circuit. The controller 26 executes the ladder program 45 read from the storage unit 43 using the CPU of the control unit 41 to construct the ladder circuit. The controller 26 inputs processing signals from motors, sensors, and switches included in each device, such as the machining device 22, to the ladder circuit and sequentially controls the motors that drive each device based on the processing signals input to the ladder circuit. The controller 26 performs signal processing and sequence control based on control by the control device 25. For example, the controller 26 starts or ends tracing of the processing signals input to the ladder circuit based on instructions from the control device 25.

[0019] The display operation device 27 is a user interface and includes, for example, a touch panel 51 and an operation unit 52. The operation unit 52 includes switches, push buttons, lamps, operation dials, etc. The display operation device 27 outputs a signal to the control device 25 in response to an operation input to the touch panel 51 or the operation unit 52. The display operation device 27 also changes the display content of the touch panel 51 and the illumination of the lamps on the operation unit 52 under the control of the control device 25. Note that the above-described configuration of the display operation device 27 is one example. For example, the display operation device 27 may include an LCD or organic EL display and the operation unit 52, and change the display content of the display in response to an operation input to the operation unit 52. The display operation device 27 may also be configured to include only the touch panel 51 without including the operation unit 52.

[0020] (What to do if an abnormality occurs) Here, the control device 25 detects an abnormality occurring in the machine tool 10. For example, the controller 26 starts tracing a processing signal input to the ladder circuit based on an instruction from the control device 25. The control device 25 executes numerical control and performs machining on the workpiece while causing the controller 26 to trace the processing signal. If the desired processing signal is not input due to the occurrence of an abnormality during machining of the workpiece, the controller 26 ends the tracing and notifies the control device 25 that the tracing has ended. If the control device 25 receives a notification of the end from the controller 26 even though it has not issued an instruction to end the tracing, it determines that an abnormality has occurred and executes processing to stop the machining operation. The control device 25 also displays on the touch panel 51 that an abnormality has occurred.

[0021] The direction of abnormality detection is not limited to the above-described method. The control device 25 may detect abnormalities by a method other than the trace end notification from the controller 26. For example, the control device 25 may determine the values ​​of signals input from various sensors, encoders, etc., to detect the occurrence of an abnormality. The control device 25 may also detect abnormalities during timing other than the machining operation, such as the workpiece transport operation or inversion operation.

[0022] 2 shows an abnormality notification screen 61 that the control device 25 displays on the touch panel 51. For example, the control device 25 displays the abnormality notification screen 61 on the touch panel 51 based on the detection of an abnormality. Furthermore, the control device 25 may display the abnormality notification screen 61 on the touch panel 51 based on a condition other than the detection of an abnormality, for example, a predetermined operation input by the user to the touch panel 51 or the operation unit 52.

[0023] As shown in Fig. 2, control device 25 displays machining device selection button 63, abnormality item 64, information item 65, cause item 66, and countermeasure / inspection item (hereinafter referred to as countermeasure item) 67 on abnormality notification screen 61. Note that the display items and arrangement of abnormality notification screen 61 shown in Fig. 2 are one example. In the following explanation, a user who operates display operation device 27 to cause machine tool 10 to perform a machining operation will be referred to as an operator, and a case will be explained in which the operator responds to the abnormality.

[0024] The machining device selection button 63 is a button for selecting a device for which an abnormality is to be displayed, and is a button for selecting the machining space of the machining device 22. For example, the machining device 22 is equipped with two machining spaces (two sets of spindle devices and turret devices) lined up in the left-right direction of the machine tool 10. The control device 25 displays two buttons for selecting the left machining space and the right machining space as the machining device selection buttons 63 on the abnormality notification screen 61. The control device 25 displays an abnormality item 64 for the machining space selected with the machining device selection button 63. The control device 25 updates information such as the abnormality item 64 in accordance with the selection of the machining device selection button 63. Figure 2 shows a state in which only the machining device selection button 63 for selecting the left machining space (see hatching in Figure 2) is selected.

[0025] The abnormality item 64 is a display field that displays abnormalities that occurred in the machining space selected by the machining device selection button 63 in the order of the date and time of occurrence. The control device 25 associates "NO," "Content," "Occurrence Date and Time," and "System" in one row and displays them in the abnormality item 64. The control device 25 displays numbers for identifying each abnormality in ascending order starting from 1 in the "NO" column. The control device 25 also displays information indicating an overview of the abnormality in the "Content" column. The control device 25 also displays the date and time of the abnormality in the "Occurrence Date and Time" column. For example, the control device 25 displays each item of the abnormality item 64 in descending order, so that the abnormality with the later (more recent) occurrence time of the "Occurrence Date and Time" appears at the top. The control device 25 also displays information in the "System" column that indicates whether the machining space in which the abnormality occurred is the left machining space or the right machining space. In FIG. 2, the left machining device selection button 63 is selected, so the control device 25 displays only the abnormality in the left machining space in the abnormality item 64. If both the left and right processing device selection buttons 63 are selected, the control device 25 displays information about abnormalities in both the left and right processing spaces in the abnormality item 64.

[0026] The control device 25 also displays information items 65, cause items 66, and countermeasure items 67 for an abnormality selected from the multiple abnormalities displayed in the abnormality item 64. As shown in FIG. 2, the control device 25 displays a selection button 69 to the right of the abnormality item 64 for selecting an abnormality. The control device 25, for example, displays the row of the selected abnormality by adding color. FIG. 2 shows a state in which the top abnormality "No. 1" is selected (see the hatching in FIG. 2). The abnormality "No. 1" is an abnormality (hereinafter referred to as hydraulic pump abnormality) in which the load on the hydraulic pump that drives the chuck of the spindle device of the processing device 22 increases, causing the breaker 29 of the motor that drives the hydraulic pump to trip (open). For example, when the selection button 69, which displays a downward arrow, is touched, the control device 25 shifts the selected abnormality downward by one and adds color to the row of the selected abnormality.

[0027] The information item 65 is a display field that displays information about the abnormality selected in the abnormality item 64. As shown in FIG. 2, the control device 25 displays "coil," "work No.," "program No.," and "stopped line number" for the hydraulic pump abnormality selected in the abnormality item 64 in the information item 65. The control device 25 displays the address of the coil on the ladder circuit (A0000.1 in FIG. 2) as the "coil" information. The address is, for example, identification information for identifying each circuit part (component) of the ladder circuit.

[0028] For example, a ladder circuit that monitors for abnormalities is constructed in the ladder circuit of controller 26. This ladder circuit is provided with circuit components (hereinafter sometimes referred to as contacts) that input processing signals from each device, etc. of machine tool 10, and circuit components (hereinafter sometimes referred to as coils) that output signals to the system. The contacts input processing signals from each device, motor, sensor, switch, circuit board, etc. that are the drive sources of each device, that machine tool 10 has. One of the multiple contacts inputs a processing signal from the hydraulic pump that indicates that the hydraulic pump is operating normally, as a processing signal that indicates that the machine tool 10 is operating normally.

[0029] FIG. 3 shows an example of a ladder circuit 78 that monitors for abnormalities. In the ladder circuit 78, a contact 78A that inputs a processing signal indicating the normal operation of the hydraulic pump and a coil 78B are connected to a net 78D that connects a pair of bus bars 78C. If a processing signal is not input from the hydraulic pump to the contact 78A, the coil 78B outputs a signal to display a message indicating an abnormality (in this case, "hydraulic pump overload") in the abnormality item 64. The address of "coil" in the information item 65 in FIG. 2 is the address of the coil 78B that output the signal to display this abnormality (A0000.1 in FIG. 3).

[0030] For example, the controller 26 traces the ladder circuit 78 based on a trace start command from the control device 25. If the hydraulic pump processing signal is not input to the contact 78A, the ladder circuit 78 outputs a signal indicating an abnormality from the coil 78B. When the controller 26 inputs a signal from the coil 78B, the controller 26 terminates the tracing and notifies the control device 25 of the termination. Based on the notification from the controller 26, the control device 25 executes operations such as stopping the machining operation and identifies the contact 78A to which the processing signal was not input and the coil 78B that output the signal indicating an abnormality, i.e., the circuit component in which the abnormality was detected. The control device 25 displays the address of the identified coil 78B in the “Coil” column of the information item 65. This allows a skilled worker to, for example, display the ladder circuit 78 on the touch panel 51, find the coil 78B with the address displayed in the information item 65, confirm the circuit connection, or estimate the location of the abnormality. Note that the processing signal in the present disclosure is not limited to the signal indicating normal operation described above, but may also be a signal indicating abnormal operation. In this case, the controller 26 may be configured not to input a signal from the target device during normal operation, but to input a processing signal indicating an abnormality to the coil when an abnormality occurs.

[0031] Furthermore, the control device 25 displays the number of the workpiece to be processed when an abnormality occurs in the "Workpiece No." The workpiece No. is information for distinguishing between different types of workpieces. For example, the control device 25 receives the No. of the workpiece to be processed on the touch panel 51 before starting processing.

[0032] Furthermore, the control device 25 displays the number of the NC program being executed when an abnormality occurs in the "Program No." column. The NC program No. is information for identifying the NC program. Furthermore, the control device 25 displays the line number of the NC program being executed when the abnormality occurred in the "Number of Stopped Lines" column. Note that if the control device 25 detects an abnormality while the NC program is not being executed, the display in the "Program No." and "Number of Stopped Lines" columns may be left blank, for example. Furthermore, the contents of the information item 65 shown in FIG. 2 are merely an example. For example, the control device 25 may display the address of the contact 78A where the abnormality was detected in the information item 65.

[0033] The control device 25 also displays information indicating the probable cause of the abnormality selected in the abnormality item 64 in the cause item 66. For example, the setting data of the control data 37 includes pre-associated settings for information on the abnormality summary to be displayed in the "content" of the abnormality item 64, information on the probable cause corresponding to the abnormality summary, and countermeasure instruction information 71 in the countermeasure item 67 (described later). The control device 25 reads information on the probable cause corresponding to the "content" of the abnormality selected in the abnormality item 64 from the control data 37 and displays the read information in the cause item 66. In FIG. 2, the probable causes of the "hydraulic pump abnormality" include a load on the hydraulic pump and the tripping of the breaker 29 (see FIG. 1) for the hydraulic pump motor. The control device 25 may also display the cause item 66 based on information other than the pre-set data. For example, the control device 25 may receive information on the causes of abnormalities that have occurred in the past from a user, and may estimate the cause of the abnormality from past accumulated data and display the estimated cause in the cause item 66.

[0034] The control device 25 also displays countermeasure instruction information 71, a control panel layout diagram button 72, a signal confirmation screen button 73, a line length button 74, a maintenance department button 75, and a manufacturer button 76 in the countermeasure item 67. When the general button 79 at the bottom right of the countermeasure item 67 is touched, the control device 25 displays the main menu. The control device 25 displays information instructing countermeasures for the abnormality in the countermeasure instruction information 71. In the example shown in FIG. 2 , the control device 25 displays four countermeasure instruction information 71 vertically, and displays the message "Reset the trip of the motor breaker (M1XX)" as the topmost countermeasure instruction information 71. This "motor breaker (M1XX)" is the identification information of the breaker 29 that tripped due to a hydraulic pump abnormality. The control device 25 also displays the message "Check whether the hydraulic pressure normal signal (X0008.0) is ON" as the second countermeasure instruction information 71. This hydraulic pressure normal signal is a processing signal indicating the normal operation of the hydraulic pump described above. The address (X0008.0) of the normal hydraulic pressure signal is the address of contact 78A (see FIG. 3) that inputs the processing signal for the hydraulic pump described above. Furthermore, the control device 25 displays the message "Please check whether the hydraulic pump is operating normally" as the third piece of countermeasure instruction information 71. Furthermore, the control device 25 displays the message "Please check the rated value of the hydraulic pump motor and change the setting value of the motor breaker (M1XX) to the appropriate value" as the fourth piece of countermeasure instruction information 71.

[0035] The control device 25 displays countermeasure instruction information 71 in the countermeasure item 67 based on, for example, information set in advance in the control data 37. By checking the countermeasure instruction information 71, the worker can determine what countermeasure to implement. However, depending on the worker's technical ability, knowledge, execution authority, etc., there may be countermeasures that cannot be implemented or that the worker does not know how to implement. Therefore, the control device 25 displays a control panel layout diagram button 72, a signal confirmation screen button 73, a line length button 74, a maintenance department button 75, and a manufacturer button 76 (hereinafter, sometimes referred to as the control panel layout diagram button 72, etc.) in the countermeasure item 67 as function execution buttons for executing support functions related to the countermeasure instruction information 71.

[0036] 2, the control device 25 displays the countermeasure instruction information 71, the control panel layout diagram button 72, etc. in one frame showing the countermeasure item 67, and also arranges the countermeasure instruction information 71 in a vertical row and displays the control panel layout diagram button 72, etc. in a vertical row to the right of the countermeasure instruction information 71. In other words, the control device 25 displays the countermeasure instruction information 71 and the control panel layout diagram button 72, etc. in one frame so that it is clear at a glance that they are related.

[0037] When the control device 25 selects the control panel layout diagram button 72 or the like, the control device 25 displays text suggesting what support function will be executed on each of the function execution buttons, such as the control panel layout diagram button 72. Specifically, the control device 25 displays the text "Go to control panel layout diagram" on the control panel layout diagram button 72, suggesting that a support function to display a control panel layout diagram will be executed. Similarly, the control device 25 displays the text "Go to signal confirmation screen" on the signal confirmation screen button 73, which displays the signal confirmation screen. The control device 25 also displays the text "Contact line manager" on the line manager button 74, suggesting that a support function to contact the line manager will be executed. Similarly, the control device 25 displays the text "Contact maintenance department" on the maintenance department button 75 for contacting the maintenance department, and the text "Contact manufacturer" on the manufacturer button 76 for contacting the manufacturer. Text such as "Contact line manager" is an example of text suggesting contacting the contact information indicated in the contact information of the present disclosure. This allows the worker to intuitively understand what support function will be executed, and the worker can execute the desired support function quickly and appropriately. Note that the above-mentioned method of displaying text is one example. For example, the text "Go to control panel layout diagram" may be displayed outside the control panel layout diagram button 72 but in a position close to the control panel layout diagram button 72. In other words, the text does not have to be displayed within the button, and the display method may be changed as appropriate as long as it suggests a relationship with the button. Furthermore, the text displayed on the line manager button 74 may be other text suggesting a contact, such as "Send email to line manager."

[0038] The control device 25 executes each support function based on the touch operation of each button, such as the control panel layout diagram button 72. First, the support function when the control panel layout diagram button 72 is touched will be described. Note that the method of selecting a button is not limited to touch operation, and a selection method using a push button or selection button on the operation unit 52 (a selection method using a physical key) may also be used. When the control panel layout diagram button 72 is touched, the control device 25 displays a screen 81 shown in FIG. 4 on the touch panel 51. As shown in FIG. 4, the control device 25 displays a message 82 at the top of the screen 81 indicating that the control panel layout diagram has been displayed and requesting that the trip of the breaker 29 be canceled. The control device 25 also displays a control panel layout diagram 83 below the message 82. The control panel layout diagram 83 displays, for example, the actual configuration of the control panel 31 (see FIG. 1) of the machine tool 10, in which a plurality of breakers 29, a plurality of amplifiers 85, and the like are provided. The control panel layout diagram 83 may be an image of the control panel 31 or a design drawing of the control panel 31.

[0039] Therefore, when an abnormality that causes breaker 29 to trip (open) occurs (for example, a hydraulic pump abnormality), control device 25 displays countermeasure instruction information 71 on abnormality notification screen 61 instructing a countermeasure to close breaker 29 (a countermeasure to release the trip) (see countermeasure instruction information 71 at the top of FIG. 2). When control panel layout diagram button 72 is touched, control device 25 executes, as a support function, a function to display an image of control panel layout diagram 83 showing control panel 31 of machine tool 10 on touch panel 51. This makes it possible to prompt the operator to operate control panel layout diagram button 72 by means of countermeasure instruction information 71 and the text on control panel layout diagram button 72. Furthermore, by displaying control panel layout diagram 83, the arrangement of breakers 29 in control panel 31 can be immediately confirmed.

[0040] Furthermore, the control device 25 displays information suggesting the location of the breaker 29 that was opened when an abnormality occurred, on the displayed control panel layout diagram 83. For example, as shown in FIG. 4, the control device 25 displays on the screen 81 a rectangular frame image 87 that surrounds the entirety of multiple breakers 29 arranged in one location. This allows the operator to know the breaker 29 that needs to be operated to recover from the abnormality, i.e., the location of the tripped breaker 29. Even an operator who does not have detailed knowledge of the control panel 31 can easily determine the location of the breaker 29 and quickly perform recovery work. As a result, the operator can perform recovery work from the abnormality by himself / herself, without contacting the line manager or the like.

[0041] The above-described display method for indicating the position of breaker 29 is merely an example. For example, as shown in arrow image 89 in FIG. 4, an arrow indicating the position of tripped breaker 29 (M1XX in FIG. 4) may be displayed. Furthermore, control device 25 may display only one of frame image 87 or arrow image 89. Although the above example describes an abnormality in which breaker 29 trips, the display process for control panel layout diagram 83 may be executed when other abnormalities occur. For example, control panel layout diagram 83 includes amplifiers 85 that control the power supplied to the motors that serve as the drive sources of machine tool 10. Each amplifier 85 is provided with an error lamp 85A that notifies of an error. When control device 25 detects an error in any amplifier 85, control device 25 may display, on abnormality notification screen 61 (see FIG. 2), corrective action instruction information 71 requesting that the error lamp 85A of that amplifier 85 be checked, and may also display frame image 87 or arrow image 89 indicating the position of the amplifier 85 whose error lamp 85A is lit on screen 81. This allows the operator to quickly identify the amplifier 85 in which an abnormality has occurred, even if the operator does not have knowledge of the arrangement of the amplifiers 85.

[0042] Next, a description will be given of the support functions when the signal confirmation screen button 73 is touched. When the signal confirmation screen button 73 is touched, the control device 25 displays a signal confirmation screen 91 shown in Fig. 5 on the touch panel 51. As shown in Fig. 5, the control device 25 displays a message 92, an address display field 93, a signal value display field 94, an address input field 96, and a search button 97 on the signal confirmation screen 91. The control device 25 displays a message 92 at the top of the signal confirmation screen 91 saying, "Please check the signal at the address displayed in red" (an example of information suggesting the location where the value of the processed signal of the present disclosure is displayed).

[0043] The address display field 93 displays the address of a circuit component in a ladder circuit. For example, the above-mentioned "X0008.0" indicates the zero bit in the eighth byte of a signal whose signal type is X. The signal type X indicates the type of external input signal. The signal confirmation screen 91 displays eight address display fields 93 vertically, with the addresses increasing by one byte as you go down the rows, from "X0008," "X0009," ... "X00015." The signal value display field 94 also displays a display field for one byte (eight bits) of the address in the address display field 93. Above the signal value display field 94, the numbers 7 through 0 are displayed in order from left to right to indicate the bit position. Each display field in the signal value display field 94 displays the signal value (bit value) of that bit. For example, 1 indicates an on (high-level) signal, and zero indicates an off (low-level) signal. In the example shown in FIG. 5, the upper left display field of the signal value display field 94 shows the signal at address (X0008.7).

[0044] Therefore, when an abnormality occurs in which a processing signal indicating normal operation is not input to contact 78A of ladder circuit 78, control device 25 displays countermeasure instruction information 71 on abnormality notification screen 61 instructing a countermeasure to check the processing signal (see the second from the top of countermeasure instruction information 71 in FIG. 2). When signal confirmation screen button 73 is touched, control device 25 executes a support function to display signal confirmation screen 91 on touch panel 51 for checking the processing signal. This allows the worker to operate signal confirmation screen button 73 according to the guidance of countermeasure instruction information 71 and signal confirmation screen button 73 and check the value of the processing signal. An appropriate response can be taken according to the value of the processing signal.

[0045] Furthermore, the control device 25 displays information suggesting the location of the signal that is the basis for determining that an abnormality has occurred on the signal confirmation screen 91. As shown in FIG. 5, the control device 25 highlights in red the display field for the address (X0008.0) of the contact 78A that inputs the processing signal of the hydraulic pump (see the hatching in FIG. 5). Therefore, as shown in the countermeasure item 67 in FIG. 2, the control device 25 displays the address assigned to the contact 78A in the ladder circuit 78 as the countermeasure instruction information 71 (the second countermeasure instruction information 71 from the top). Then, on the signal confirmation screen 91, the control device 25 displays the address of this contact 78A in association with the value of the processing signal, and also displays information (in red) suggesting the location where the value of the processing signal is displayed. This allows even an operator who has no knowledge of the addresses of the ladder circuit 78 or the signal confirmation screen 91 to easily determine which signal to check. Furthermore, by displaying a message 92, the operator can be informed more clearly which signal to check. The color used to indicate the location of the traffic light that the driver should check is not limited to red, but may be other colors such as yellow. The method of indicating the location of the traffic light that the driver should check is not limited to the above-described coloring method. For example, the control device 25 may indicate the location of the traffic light that the driver should check with an arrow image 89 or the like as shown in FIG. 4.

[0046] The control device 25 also updates the display content of the signal confirmation screen 91 based on the operation of the address input field 96 and the search button 97. For example, the control device 25 accepts the value of the address that the operator wants to display in the address input field 96, and displays the signal confirmation screen 91, which displays the address entered in the address input field 96, on the touch panel 51 based on the touch operation of the search button 97. A ladder circuit includes multiple circuit components. For this reason, the signal confirmation screen 91 may include screens in which the address of the contact 78A is not displayed, such as a screen displayed from X0100.0 in the upper left corner of the screen or a screen displayed from X1000.0. The control device 25 updates the signal confirmation screen 91 so that the address value entered in the address input field 96 is displayed in the top row, for example.

[0047] On the other hand, as described above, the control device 25 displays the signal confirmation screen 91, which displays the address (X0008.0) of the contact 78A, i.e., the address of the contact 78A that the operator should check, based on the touch operation of the signal confirmation screen button 73 in FIG. 2 , which inputs a processing signal corresponding to the abnormality selected in the abnormality item 64. In other words, the operator simply selects the abnormality he or she wants to check in the abnormality item 64 and presses the signal confirmation screen button 73 to display on the touch panel 51 the value of the processing signal that must be checked to resolve the selected abnormality. This reduces the time required for the operator to check the signal. Note that the control device 25 may also display the signal confirmation screen 91, which does not display the address (X0008.0) of the contact 78A, based on the touch operation of the signal confirmation screen button 73. For example, the control device 25 may retain the address of the signal confirmation screen 91 displayed in response to the operator's previous operation input and display the previously displayed signal confirmation screen 91 based on the touch operation of the signal confirmation screen button 73. That is, based on the touch operation of the signal confirmation screen button 73, the control device 25 may display the signal confirmation screen 91, such as the previous display screen, on which the address to be confirmed is not displayed.

[0048] As shown in FIG. 2, the control device 25 displays a control panel layout button 72 to the right of the countermeasure instruction information 71 requesting that the breaker 29 be released from tripping, and a signal confirmation screen button 73 to the right of the countermeasure instruction information 71 prompting the operator to check the signal. This allows the operator to easily determine which button executes the support function required to execute the countermeasure indicated by each countermeasure instruction information 71. As shown in FIG. 2, the control device 25 displays, in addition to the two countermeasure instruction information 71 described above, instructions to check the operation of the hydraulic pump and instructions to change the set values ​​as countermeasure instruction information 71. However, some operators may find it difficult to determine to what extent they should respond just by looking at the countermeasure instruction information 71. Therefore, the control device 25 displays function execution buttons for contacting the line manager, the maintenance department, and the manufacturer.

[0049] The control device 25 displays text suggesting contacting each contact, such as "Contact the line manager," on each of the line manager button 74, the maintenance department button 75, and the manufacturer button 76. The control device 25 then executes a support function of contacting the contact corresponding to the operated function execution button based on the touch operation of the corresponding button. Specifically, for example, when the line manager button 74 is touched, the control device 25 sends an email with a subject and message indicating that an abnormality has occurred to the email address of the line manager set in the contact information 38. Similarly, when the maintenance department button 75 is touched, the control device 25 sends an email to the person in charge of the maintenance department, and when the manufacturer button 76 is touched, the control device 25 sends an email to the person in charge of the manufacturer. This allows for prompt contact with a person with more technical skills and knowledge when an abnormality occurs that the worker cannot handle. For example, when a worker's technical level is not sufficient to handle the problem, the worker first contacts the line manager. Next, if the abnormality is beyond the skill level of the worker, the worker contacts the maintenance department. If the maintenance department is unable to handle the abnormality, a step-by-step response can be implemented, such as contacting the manufacturer.

[0050] The control device 25 also notifies each contact via email of the above-mentioned abnormality item 64, information item 65, cause item 66, and countermeasure instruction information 71. For example, when the line manager button 74 is touched, the control device 25 enters information such as the abnormality item 64 into the body of an email and sends it to the line manager. The information for the abnormality item 64 may include the "No.", "Contents," "Occurrence Date and Time," and "System" of the selected abnormality (in this case, a hydraulic pump abnormality), or all information displayed in the abnormality item 64. This allows the line manager or other personnel who receive the notification to review the email and consider what action to take or take appropriate action, such as preparing a replacement part. Therefore, there is no need to ask the on-site worker for the entire abnormality description; instead, they can remotely consider a response policy and method. Furthermore, they can head to the site after making appropriate preparations. The control device 25 does not necessarily need to send information such as the abnormality item 64 in text form. For example, the control device 25 may attach a captured image of the abnormality notification screen 61 shown in FIG. 2 to an email and send it to each contact.

[0051] Furthermore, when the line manager button 74 or the maintenance department button 75 is touched, the control device 25 notifies the contact person of the selected button by email of installation location information indicating the installation location of the machine tool 10 in the production factory. The control device 25 may transmit, as the installation location information, for example, the name of the factory or building where the machine tool 10 is installed, the number of the pillar on the factory floor near where the machine tool 10 is installed, or the line name of the production line where the machine tool 10 is installed. This allows the line manager or the person in charge of the maintenance department to know the installation location of the machine tool 10 where an abnormality has occurred by checking the installation location information in the email. This reduces the time it takes for the contact person to arrive at the site.

[0052] On the other hand, the above-mentioned installation location information is likely to be unnecessary information for the manufacturer. This is because when a person from the manufacturer visits the factory where the machine tool 10 is installed, there is a high possibility that the person will be guided to the machine tool 10 by a factory worker. Therefore, when the manufacturer button 76 is touched, the control device 25 does not notify the manufacturer of the above-mentioned installation location information. This prevents unnecessary information from being sent to the manufacturer, thereby preventing the content of the email from becoming difficult to understand. The person in charge at the manufacturer can more accurately understand the necessary information.

[0053] The control device 25 also changes the contact method based on the schedule data 39 (see FIG. 1). The contact information 38 stores information about the line manager's work schedule, as described above. For example, when the line manager button 74 is touched, the control device 25 checks the schedule data 39 and, if the line manager is on vacation, calls the line manager via mobile phone in addition to sending an email. For example, the control device 25 converts part or all of the information to be sent via email into audio data, calls the mobile phone, and plays the generated audio data. This allows for contact via mobile phone when the line manager is on vacation and is likely not checking email on a PC or the like. The control device 25 may also notify the line manager of an abnormality using a so-called short message service or email service on the mobile phone. The control device 25 may also execute only one of email notification and voice notification via telephone. The control device 25 may also execute email or voice notification without checking the schedule based on the schedule data 39.

[0054] 1, the control unit 33 of the control device 25 has a display processing unit 33A and a function processing unit 33B. The display processing unit 33A and the like are processing modules that are realized, for example, by executing a program of control data 37 in the CPU of the control unit 33. The display processing unit 33A and the like may be configured not by software but by hardware, or may be configured by a combination of software and hardware.

[0055] Display processing unit 33A is a functional unit that, when an abnormality occurs in machine tool 10, displays countermeasure instruction information 71 that instructs a countermeasure for the abnormality, and a function execution button (control panel layout diagram button 72, etc.) associated with countermeasure instruction information 71 on touch panel 51. Display processing unit 33A is also a functional unit that displays text on touch panel 51 indicating that a function execution button, such as control panel layout diagram button 72, is a button that executes a support function related to countermeasure instruction information 71. Function processing unit 33B is a functional unit that executes a support function based on the selection of a function execution button, such as control panel layout diagram button 72, displayed on touch panel 51.

[0056] Incidentally, the touch panel 51 is an example of a display unit and a reception unit of the present disclosure. The operation unit 52 is an example of a reception unit. The control panel layout diagram button 72, the signal confirmation screen button 73, the line length button 74, the maintenance department button 75, and the manufacturer button 76 are examples of function execution buttons. The contact 78A is an example of a circuit component. The frame image 87 and the arrow image 89 are examples of information suggesting the position of the breaker 29 that has opened due to the occurrence of an abnormality.

[0057] As described above, the present embodiment provides the following effects. In one aspect of this embodiment, when an abnormality occurs in machine tool 10, control device 25 displays countermeasure instruction information 71 that instructs a countermeasure to be taken against the abnormality, and displays function execution buttons such as control panel layout diagram button 72 within the frame of countermeasure item 67 that displays countermeasure instruction information 71. Control device 25 also displays text suggesting the execution of a support function, such as "Go to control panel layout diagram," on each function execution button. When any of the function execution buttons is touched, control device 25 executes the support function corresponding to that function execution button.

[0058] This allows the worker to check the countermeasure instruction information 71, determine which support function to execute by looking at the text, and execute the desired support function by selecting the function execution button. Therefore, countermeasures for abnormalities can be executed more quickly by displaying countermeasures in the countermeasure instruction information 71, suggesting support functions by text, and executing support by selecting the function execution button.

[0059] It goes without saying that the present disclosure is not limited to the above-described embodiments, and various improvements and modifications are possible within the scope of the present disclosure. For example, the configuration of machine tool 10 in the above embodiment is one example. Machine tool 10 may not be equipped with touch panel 51, but may display countermeasure instruction information 71, control panel layout diagram button 72, etc. on a display such as an LCD, and accept selection of control panel layout diagram button 72 using an operation switch or the like. Furthermore, in the example shown in FIG. 2, the control device 25 displays a plurality of pieces of countermeasure instruction information 71, but it may also display only one piece of countermeasure instruction information 71. Furthermore, the control device 25 may display only one function execution button, such as the control panel layout diagram button 72. Therefore, the control device 25 may be configured to execute only one support function among the support functions of displaying the control panel layout diagram 83, displaying the signal confirmation screen 91, and contacting each person in charge by email. Furthermore, the control device 25 may change the function execution button to be displayed depending on the type of abnormality selected in the abnormality item 64 .

[0060] 2 is merely an example. For example, the control device 25 may display text such as "Display control panel layout diagram" on the control panel layout diagram button 72. Also, text such as "Which of the following support functions would you like to perform?" may be displayed above the control panel layout diagram button 72. Furthermore, the control device 25 does not need to display information suggesting the position of the breaker 29, such as the frame image 87 or the arrow image 89 shown in Fig. 3. Furthermore, the suggestive information is not limited to an image, and may be text information such as "Please check the breaker that is Xth from the right and Xth from the top."

[0061] 3 is an example. For example, a ladder circuit 78 may be constructed in which a processing signal notifying an abnormality from the motor of each drive source is input to contact 78A, and when a processing signal indicating an abnormality is input, coil 78B is connected to notify the abnormality. 4 is an example. For example, the value of each signal in the signal value display field 94 may be displayed as ON if the bit value is 1, OFF if the bit value is zero, and so on. Furthermore, although the control device 25 displays the position of the value of the processed signal to be checked by adding color to it, it is not necessary to display information suggesting the position where the value of the processed signal is displayed. The control device 25 does not need to highlight the signal in red or display the message 92. Furthermore, the information suggesting the position may be text information such as "Please check the value of the signal that is Xth from the right and Xth from the top."

[0062] Furthermore, the above-mentioned contact information for the line manager, maintenance department, manufacturer, etc. is only an example. Such contact information is changed as appropriate depending on the size of the company that owns machine tool 10, the department, the repair system of the manufacturer, etc. For example, if the company does not have a maintenance department, maintenance department button 75 is unnecessary. Furthermore, if the manufacturer outsources repairs, the outsourced repair company may be added to the contact information, and a function execution button may be provided that displays the words "Contact Repairer" or the like and contacts the repairer. 2 is an example, and the abnormality notification screen 61 may be configured without any one of the abnormality item 64, the information item 65, and the cause item 66. Furthermore, the control device 25 does not have to notify the line manager or the like of all of the information, including the abnormality item 64, information item 65, cause item 66, and countermeasure instruction information 71, by email, but may notify only at least one of the information. Furthermore, the control device 25 does not need to notify the line manager or maintenance department of the installation location information of the machine tool 10, and may notify the manufacturer of the installation location information. [Explanation of symbols]

[0063] 10 Machine tool, 21 Power supply, 25 Control device, 27 Display operation device, 26 Controller, 29 Breaker, 31 Control panel, 51 Touch panel (display section, reception section), 33A Display processing section, 33B Function processing section, 35 Memory section, 38 Contact information, 52 Operation section (reception section), 64 Abnormality item, 65 Information item, 66 Cause item, 71 Countermeasure instruction information, 72 Control panel layout diagram button (function execution button), 73 Signal confirmation screen button (function execution button), 74 Line length button (function execution button), 75 Maintenance department button (function execution button), 76 Manufacturer button (function execution button), 78 Ladder circuit, 78A Contact (circuit component), 87 Frame image, 89 Arrow image, 91 Signal confirmation screen.

Claims

1. a display operation device having a display unit and a reception unit that receives operation instructions; a control device that executes a process of displaying information on the display unit and a process based on the operation instruction received by the reception unit; a power supply; a breaker provided in a control panel, which cuts off the power supply from the power supply device by opening its contacts; A machine tool comprising: The control device a display processing unit that, when an abnormality occurs in the machine tool, displays on the display unit countermeasure instruction information instructing a countermeasure to be taken against the abnormality and a function execution button associated with the countermeasure instruction information, and also displays on the display unit a character indicating that the function execution button is a button for executing a support function associated with the countermeasure instruction information; a function processing unit that executes the support function based on the function execution button displayed on the display unit being selected; and The display processing unit When the abnormality that opens the breaker occurs, the countermeasure instruction information instructing a countermeasure to close the breaker is displayed on the display unit, The function processing unit When the abnormality that opens the breaker occurs, the machine tool executes, as the support function, a function of displaying an image showing the control panel of the machine tool on the display unit.

2. The function processing unit 2. The machine tool according to claim 1, wherein the image of the control panel displayed on the display unit displays information suggesting the position of the breaker that has opened due to the occurrence of the abnormality.

3. A controller for executing a ladder circuit is provided, The ladder circuit comprises: a circuit component for inputting a processed signal indicating that the machine tool is operating normally; The display processing unit When the abnormality occurs in which the processing signal is not input to the circuit component, the countermeasure instruction information instructing a countermeasure to check the processing signal is displayed on the display unit; The function processing unit 3. The machine tool according to claim 1, wherein, when an abnormality occurs in which the processing signal is not input to the circuit component, the support function is to execute a function of displaying a signal confirmation screen on the display unit to confirm the processing signal.

4. The display processing unit As the countermeasure instruction information, an address assigned to the circuit component in the ladder circuit is displayed; The function processing unit 4. The machine tool according to claim 3, wherein the signal confirmation screen displays the address of the circuit component and the value of the processed signal in association with each other, and also displays information suggesting a position where the value of the processed signal is displayed.

5. a storage unit that stores contact information indicating contact information for at least one of a line manager who is a manager of the production line on which the machine tool is installed, a maintenance department in charge of repairing the machine tool, and a manufacturer of the machine tool, The display processing unit displaying the character suggesting contacting the contact person indicated by the contact information on the function execution button; The function processing unit The machine tool according to claim 1 , wherein the support function of contacting the contact person indicated by the selected contact information is executed based on the function execution button being selected.

6. A display operation device having a display unit and a reception unit that receives operation instructions; a control device that executes a process of displaying information on the display unit and a process based on the operation instruction received by the reception unit; A machine tool comprising: The control device a display processing unit that, when an abnormality occurs in the machine tool, displays on the display unit countermeasure instruction information instructing a countermeasure to be taken against the abnormality and a function execution button associated with the countermeasure instruction information, and also displays on the display unit a character indicating that the function execution button is a button for executing a support function associated with the countermeasure instruction information; a function processing unit that executes the support function based on the function execution button displayed on the display unit being selected; and a storage unit that stores contact information indicating contact information for at least one of a line manager who is a manager of the production line on which the machine tool is installed, a maintenance department in charge of repairing the machine tool, and a manufacturer of the machine tool, The display processing unit displaying the character suggesting contacting the contact person indicated by the contact information on the function execution button; The function processing unit Based on the selection of the function execution button, the support function is executed to contact the contact person indicated by the selected contact information; The display processing unit displaying on the display unit an abnormality item indicating the abnormality that has occurred in order of the date and time of occurrence, an information item indicating information relating to the abnormality, and a cause item indicating a probable cause of the abnormality; The function processing unit a machine tool that, based on the function execution button being selected, contacts the contact point indicated by the contact information and notifies the contact point indicated by the contact information of the abnormality item, the information item, the cause item, and the countermeasure instruction information.

7. A display operation device having a display unit and a reception unit that receives operation instructions; a control device that executes a process of displaying information on the display unit and a process based on the operation instruction received by the reception unit; A machine tool comprising: The control device a display processing unit that, when an abnormality occurs in the machine tool, displays on the display unit countermeasure instruction information instructing a countermeasure to be taken against the abnormality and a function execution button associated with the countermeasure instruction information, and also displays on the display unit a character indicating that the function execution button is a button for executing a support function associated with the countermeasure instruction information; a function processing unit that executes the support function based on the function execution button displayed on the display unit being selected; and a storage unit that stores contact information indicating contact information for at least one of a line manager who is a manager of the production line on which the machine tool is installed, a maintenance department in charge of repairing the machine tool, and a manufacturer of the machine tool, The display processing unit displaying the character suggesting contacting the contact person indicated by the contact information on the function execution button; The function processing unit Based on the selection of the function execution button, the support function is executed to contact the contact person indicated by the selected contact information; The display processing unit displaying on the display unit an abnormality item indicating the abnormality that has occurred in order of the date and time of occurrence, an information item indicating information relating to the abnormality, and a cause item indicating a probable cause of the abnormality; The function processing unit contacting a contact person indicated by the contact information based on the selection of the function execution button, and notifying the contact person indicated by the contact information of the abnormality item, the information item, the cause item, and the countermeasure instruction information; The display processing unit displaying three function execution buttons corresponding to the line length, the maintenance department, and the manufacturer, respectively; The function processing unit When the function execution button of the line manager or the maintenance department is selected, installation location information indicating the installation location of the machine tool in a production factory is notified to a contact point indicated by the characters of the selected function execution button, and when the function execution button of the manufacturer is selected, the installation location information is not notified to the manufacturer.

Images