WO2023100314A1

WO2023100314A1 - Machine tool

Info

Publication number: WO2023100314A1
Application number: PCT/JP2021/044258
Authority: WO
Inventors: 康之鈴木
Original assignee: 株式会社Fuji
Priority date: 2021-12-02
Filing date: 2021-12-02
Publication date: 2023-06-08

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

Machine Tools

This disclosure relates to a display method when an abnormality occurs in a machine tool.

Conventionally, various proposals have been made for machine tools that display information about abnormalities that have occurred. For example, the transfer device disclosed in Patent Document 1 below displays the abnormal state of the processing unit on the operation panel of each processing unit. The transfer device displays characters such as "error reset", "system error", "tool error", and "main menu" in the operation screen area, and displays a switch such as "F1" below the characters. are doing. For example, when the "abnormal tool" switch is turned on, the transfer device graphically displays the abnormal tool.

Japanese Patent Application Laid-Open No. 5-277859 (Figs. 9 and 11)

In the above-described transfer device, characters such as "abnormality reset" and switches associated with the characters are displayed in addition to the characters "tool abnormality" related to the tool in which an abnormality has occurred. However, with this transfer device, there is a problem that it is difficult for the user to know which switch to operate when an abnormality occurs, just by looking at the displayed characters. Therefore, there is room for improvement in the display method when an abnormality occurs.

The present disclosure has been made in view of the above problems, and aims to provide a machine tool that can more quickly implement countermeasures against abnormalities.

In order to solve the above problems, the present disclosure provides a display operation device having a display unit and a reception unit that receives an operation instruction, a process for displaying information on the display unit, and a process for displaying information on the operation instruction received by the reception unit. and a control device that executes a process based on the above, wherein the control device includes countermeasure instruction information that instructs countermeasures against the abnormality when an abnormality occurs in the machine tool, and the countermeasure instruction Displaying a function execution button associated with the information on the display unit, and displaying characters suggesting that the function execution button is a button for executing a support function related to the countermeasure instruction information on the display unit. and a function processing unit that executes the support function based on the selection of the function execution button displayed on the display unit.

According to the machine tool of the present disclosure, countermeasure instruction information and a function execution button are displayed when an abnormality occurs. In addition, the machine tool displays in characters that this function execution button is a button for executing a support function related to the countermeasure instruction information. Accordingly, the user can determine by text which support function should be executed after confirming the countermeasure instruction information, and can execute the desired support function by selecting the function execution button. Therefore, by displaying countermeasures based on the countermeasure instruction information, suggesting support functions by text, and executing support based on selection of the function execution button, countermeasures against abnormalities can be executed more quickly.

1 is a block diagram of an anomaly notification system provided with the machine tool of this embodiment; FIG. The figure which shows the abnormality notification screen displayed on the touch panel of a machine tool. The figure which shows the ladder circuit which detects abnormality. The figure which shows the screen which displayed the control-board layout drawing. The figure which shows a signal confirmation screen.

(Abnormality notification system 1)
An embodiment embodying the machine tool of the present disclosure will be described below with reference to the drawings. FIG. 1 shows a block diagram of an abnormality notification system 1 including a machine tool 10 of this embodiment. As shown in FIG. 1, the abnormality notification system 1 includes a machine tool 10, a mail server 11, and a vendor server 13. Machine tool 10 can communicate with mail server 11 and vendor server 13 via network 15 . Network 15 includes, for example, the Internet and local area networks.

The machine tool 10 is a device that executes machining on a work. Further, when an abnormality occurs in the machine tool 10, the machine tool 10 notifies the occurrence of the abnormality based on the user's operation. The machine tool 10 notifies each person in charge (such as a line manager to be described later) of the abnormality by e-mail via the mail server 11, for example. The mail server 11 may be a mail server on the same local area network as the machine tool 10, or may be a mail server on the Internet. The machine tool 10 also notifies the vendor server 13 based on the user's operation. The vendor server 13 is, for example, a vendor server managed by the manufacturer of the machine tool 10 . It should be noted that a device other than the machine tool 10 may execute the notification by e-mail. For example, a PC connected to the machine tool 10 may send an e-mail to each person in charge based on abnormality information acquired from the machine tool 10 .

(machine tool 10)
Next, the machine tool 10 will be explained. The machine tool 10 includes a power supply device 21, a processing device 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 device 21 functions as a power source that supplies power to each device provided in the machine tool 10 . The power supply device 21 receives power from, for example, a power supply in a factory where the machine tool 10 is installed, and supplies three-phase AC power to a three-phase motor that serves as a drive source for each device provided in the machine tool 10, and each device. generates DC power to drive the sensor switches in the The respective devices referred to here are the processing device 22, the loader 23, the control device 25, the controller 26, and the like.

The processing device 22 is, for example, a lathe equipped with a spindle device that grips and rotates a workpiece, and a turret device that processes the workpiece gripped by the spindle device with a tool. The processing device 22 is, for example, a multi-spindle lathe having a plurality of combinations of spindle devices and turret devices. The processing device 22 is not limited to a lathe, and may be other processing devices such as a machining center, a milling machine, and a drilling machine. Moreover, the processing device 22 may be configured to include only one set of a spindle device and a turret device, or may be a composite processing device including both a lathe and a machining center.

The loader 23 is a workpiece transfer device, and includes a head for gripping the workpiece and a moving device for moving the head, and transfers the workpiece to and from the processing device 22 and other devices (pre-process and post-process devices). do. The operation of the processing device 22 and the loader 23 is controlled under the control of the control device 25 . The machine tool 10 also has a breaker 29 on a 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 equipment provided in each device. Cut off the supply. A plurality of breakers 29 are provided on a control panel 31 of the machine tool 10 . In order to avoid complication of the drawing, FIG. 1 omits illustration of some of the devices provided in the machine tool 10 .

The control device 25 includes a control section 33 and a storage section 35. The control unit 33 is a processing device mainly composed of a computer including a CPU and the like, and controls the operation of each device provided in the machine tool 10 in an integrated manner. The storage unit 35 includes, for example, RAM, ROM, flash memory, and the like. The storage 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 processing device 22 and various setting data. The control unit 33 controls the operation of each device by executing the program of the control data 37 with the CPU. Various setting data are, for example, data of conditions for detecting an abnormality of the machine tool 10 . The various setting data store image/character 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. Incidentally, in the following description, the device that executes the program may be simply described by the name of the device. For example, "the control device 25 changes the display of the touch panel 51 of the display operation device 27" means that "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." , to change the display of the touch panel 51”.

The contact information 38 is contact information for the line manager, maintenance department, and manufacturer. When an abnormality occurs, the machine tool 10 notifies of the abnormality based on the contact information 38 . The line manager is the manager of the production line in which the machine tool 10 is installed. For example, a line manager is a person who has a higher level of technical ability or a greater amount of knowledge than the workers who work on the production line in charge. When an abnormality that cannot be dealt with by workers occurs, the line manager uses his high technical skills and abundant knowledge to take appropriate measures against the abnormality. The contact information 38 stores the e-mail address and mobile phone number of the line manager of each production line. It should be noted that one line manager may be appointed to one production line, or a plurality of line managers may be appointed. In the case of multiple people, the e-mail address or the like of each line length may be set in the contact information 38 .

A maintenance department is, for example, a specialized department in charge of repairing the machine tool 10 in a company that owns the machine tool 10 . The contact information 38 stores the e-mail addresses and mobile phone numbers of one or more employees belonging to the maintenance department. A manufacturer is a manufacturer that manufactures the machine tool 10 . The contact information 38 stores the e-mail address and telephone number of the manufacturer's repair contact. The content of the contact information 38 described above is an example. For example, the contact information 38 may include contact information for at least one of line length, maintenance department, and manufacturer. The contact information 38 may also include the line manager, maintenance department, and contact information other than the manufacturer, such as the contact information of a repairer entrusted with the repair work by the manufacturer. Also, the contact information 38 is not limited to an email address or phone number. For example, the contact information 38 may be URL information of a home page for accepting repairs of the vendor server 13 . When an abnormality described later occurs, the machine tool 10 may access the URL of the vendor server 13 and automatically input information about the abnormality. Also, the contact information 38 may be configured to include only one of an e-mail address and a telephone number. In other words, the machine tool 10 may notify the abnormality to only one of e-mail and telephone.

The schedule data 39 is information related to the schedule of the line manager and each person in charge of the maintenance department. The schedule data 39 stores, for example, information such as the line length and other information about the work schedule and vacation schedule of each person in charge. The machine tool 10 changes the contact method based on the schedule data 39 when an abnormality described later occurs. A method for setting the schedule data 39 is not particularly limited. For example, the machine tool 10 may acquire schedule information via the network 15 from a server that manages the schedule. Note that the machine tool 10 may not have the schedule data 39 . That is, the machine tool 10 does not need to change the contact information based on the schedule data 39.

The controller 26 is, for example, a PLC (Programmable Logic Controller) and includes a control unit 41 and a storage unit 43. The control unit 41 is a processing device mainly composed of a computer including a CPU and the like, and controls the operation of the controller 26 . The storage unit 43 is, for example, RAM, ROM, flash memory, etc., 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 by the CPU of the control unit 41 to construct a ladder circuit. The controller 26, for example, inputs the processing signals of the motors, sensors, and switches provided in each device such as the processing device 22 to the ladder circuit, and performs sequence control of the motors that drive each device based on the processing signals input to the ladder circuit. . The controller 26 executes signal processing and sequence control under the control of the control device 25 . For example, the controller 26 starts or ends tracing of the processing signal input to the ladder circuit based on instructions from the control device 25 .

The display operation device 27 is a user interface, and includes a touch panel 51 and an operation unit 52, for example. The operation unit 52 has switches, push buttons, lamps, operation dials, and the like. The display operation device 27 outputs a signal to the control device 25 according to an operation input to the touch panel 51 or the operation section 52 . Further, the display operation device 27 changes the display contents of the touch panel 51 and lighting of the lamps of the operation unit 52 based on the control of the control device 25 . The configuration of the display operation device 27 described above is an example. For example, the display operation device 27 may include an LCD or organic EL display and an operation unit 52 , and change the display contents of the display according to an operation input to the operation unit 52 . Further, the display operation device 27 may be configured to have only the touch panel 51 without the operation unit 52 .

(Processing when an error occurs)
Here, the controller 25 detects an abnormality occurring in the machine tool 10 . For example, the controller 26 starts tracing the processed signal input to the ladder circuit based on instructions from the control device 25 . The control device 25 performs numerical control and processes the workpiece while causing the controller 26 to trace the processing signal. The controller 26 terminates tracing and notifies the control device 25 of the termination of tracing when a desired processing signal is not input due to the occurrence of an abnormality during machining of the workpiece. The control device 25 determines that an abnormality has occurred when receiving a termination notification from the controller 26 even though no trace termination instruction has been issued, and executes processing to stop the machining operation. Also, the control device 25 displays on the touch panel 51 that an abnormality has occurred.

It should be noted that the detection direction of the abnormality is not limited to the above method. The control device 25 may detect an abnormality by a method other than the trace end notification from the controller 26 . For example, the control device 25 may detect the occurrence of an abnormality by judging the values of signals input from various sensors, encoders, and the like. In addition, the control device 25 may detect an abnormality at timings other than the machining operation, such as the work conveying operation and the reversing operation.

FIG. 2 shows an anomaly notification screen 61 displayed on the touch panel 51 by the control device 25 . The control device 25 displays, for example, an abnormality notification screen 61 on the touch panel 51 based on detection of an abnormality. Further, the control device 25 may display the abnormality notification screen 61 on the touch panel 51 based on a condition other than detecting an abnormality, for example, a user's predetermined operation input to the touch panel 51 or the operation unit 52 .

As shown in FIG. 2, the control device 25 displays a processing device selection button 63, an abnormality item 64, an information item 65, a cause item 66, and countermeasure/inspection items (hereinafter referred to as countermeasure items) 67 on the abnormality notification screen 61. . Note that the display items and arrangement of the abnormality notification screen 61 shown in FIG. 2 are examples. Further, in the following description, a user who operates the display operation device 27 to cause the machine tool 10 to execute a machining operation is referred to as an operator, and a case in which the operator handles an abnormality will be explained.

The processing 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 processing space of the processing device 22 . For example, the processing device 22 includes two processing spaces (two sets of spindle devices and turret devices) arranged in the horizontal 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 anomaly notification screen 61 . The control device 25 displays the abnormal item 64 of the machining space selected by the machining device selection button 63 . The control device 25 updates information such as the abnormality item 64 according to the selection of the processing device selection button 63 . FIG. 2 shows a state in which only the processing device selection button 63 (see hatching in FIG. 2) for selecting the left processing space is selected.

The anomaly item 64 is a display column that shows the anomalies that have occurred in the machining space selected by the machining device selection button 63 in order of date and time of occurrence. The control device 25 associates “NO”, “content”, “occurrence date and time”, and “system” with one line and displays them in the abnormality item 64 . The control device 25 displays the numbers for identifying each abnormality in ascending order from 1 in the "NO" column. In addition, the control device 25 displays information indicating an overview of the abnormality in the "Contents" column. In addition, the control device 25 displays the date and time of occurrence of the abnormality in the "date and time of occurrence" column. The control device 25 displays each item of the abnormality items 64 in descending order, for example, so that the abnormality whose occurrence time of the "occurrence date and time" is later (latest) is at the top. In addition, the control device 25 displays information indicating whether the machining space in which the abnormality occurred is the left machining space or the right machining space in the "system" column. In FIG. 2, since the machining device selection button 63 on the left side is selected, the control device 25 displays only anomalies in the machining space on the left side in the anomaly item 64 . If both the left and right machining device selection buttons 63 are selected, the control device 25 displays information on anomalies in both the left and right machining spaces in the anomaly items 64 .

In addition, the control device 25 displays an information item 65, a cause item 66, and a countermeasure item 67 for an abnormality selected from among the multiple abnormalities displayed in the abnormality item 64. As shown in FIG. 2, the control device 25 displays a selection button 69 for selecting an abnormality to the right of the abnormality item 64. FIG. For example, the control device 25 adds color to the selected abnormal line for display. FIG. 2 shows a state in which the top "NO. 1" abnormality is selected (see hatching in FIG. 2). Abnormality No. 1 is an abnormality in which the load on the hydraulic pump that drives the chuck of the spindle device of the processing device 22 increases and the breaker 29 of the motor that drives the hydraulic pump trips (opens) (hereinafter referred to as hydraulic pump abnormality). ). For example, when the selection button 69 with a downward arrow is touched, the control device 25 shifts the abnormality to be selected downward one by one and adds a color to the row of the selected abnormality.

The information item 65 is a display column for displaying 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." 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 component (component) of the ladder circuit.

For example, in the ladder circuit of the controller 26, a ladder circuit for monitoring abnormalities is constructed. The ladder circuit includes a circuit component (hereinafter sometimes referred to as a contact) for inputting a processing signal from each device of the machine tool 10, and a circuit component (hereinafter sometimes referred to as a coil) for outputting a signal to the system. ) is provided. The contact inputs processing signals from each device provided in the machine tool 10, and the motor, sensor, switch, substrate, etc., which are the driving sources of each device. One of the contacts receives a processing signal from the hydraulic pump indicating that the hydraulic pump is operating normally as a processing signal indicating that the machine tool 10 is operating normally.

FIG. 3 shows an example of the ladder circuit 78 that monitors abnormalities. In the ladder circuit 78, a contact 78A for inputting a processing signal indicating normal operation of the hydraulic pump and a coil 78B are connected on a net 78D connecting a pair of busbars 78C. The coil 78B outputs a signal for displaying a message indicating an abnormality ("hydraulic pump overload" in this case) in the abnormality item 64 when a processing signal is not input from the hydraulic pump to the contact 78A. . The "coil" address in the information item 65 in FIG. 2 is the address of the coil 78B that outputs the signal for displaying this abnormality (A0000.1 in FIG. 3).

For example, the controller 26 traces the ladder circuit 78 based on the trace start instruction from the control device 25 . The ladder circuit 78 outputs a signal indicating abnormality from the coil 78B when the processing signal of the hydraulic pump is not input to the contact 78A. The controller 26 terminates tracing upon receiving a signal from the coil 78B and notifies the control device 25 of the termination. The control device 25 stops the machining operation based on the notification from the controller 26, and the contact 78A to which the processing signal is not input, the coil 78B to which the signal indicating the abnormality is output, that is, the circuit component in which the abnormality is detected. identify. The control device 25 displays the address of the identified coil 78B in the “coil” column of the information item 65 . As a result, a skilled worker can, for example, display the ladder circuit 78 on the touch panel 51, find the coil 78B of the address displayed in the information item 65, check the connection of the circuit, and find the location of the abnormality. guesses can be made. It should be noted that the processed signal of the present disclosure is not limited to the signal indicating normal operation described above, and may be a signal indicating abnormal operation. In this case, the controller 26 may be configured so as not to input a signal from the target device during normal operation and to input a processing signal indicating an abnormality to the coil when an abnormality occurs.

In addition, the control device 25 displays the NO of the work to be processed when the abnormality occurred in "Work No.". The work number is information for identifying works of different types. For example, the control device 25 receives the NO of the workpiece to be processed on the touch panel 51 before starting processing.

In addition, the control device 25 displays the NO 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. In addition, the control device 25 displays the number of lines of the NC program that was being executed when the abnormality occurred in the "Number of Stopped Lines" column. If an abnormality is detected while the NC program is not being executed, the control device 25 may set the "Program No." and "Number of Stopped Lines" columns to blank. Also, the content of the information item 65 shown in FIG. 2 is an example. For example, the control device 25 may display in the information item 65 the address of the contact 78A that detected the abnormality.

In addition, the control device 25 displays in the cause item 66 information indicating the estimated cause of the abnormality selected in the abnormality item 64 . For example, the setting data of the control data 37 includes information on the outline of the abnormality displayed in the "details" of the abnormality item 64, information on the probable cause corresponding to the outline of the abnormality, and countermeasure instruction information 71 for the countermeasure item 67, which will be described later. It is pre-associated and set. The control device 25 reads the corresponding estimated cause information from the control data 37 based on the “content” of the abnormality selected in the abnormality item 64 and displays it in the cause item 66 . In FIG. 2, as the probable cause of the "hydraulic pump abnormality", it is displayed that the hydraulic pump is overloaded and the breaker 29 (see FIG. 1) for the motor of the hydraulic pump has tripped. The control device 25 may display the cause item 66 based on information other than preset data. For example, the control device 25 may receive information on the cause of an abnormality that occurred in the past from the user, estimate the cause of the abnormality from past accumulated data, and display it in the cause item 66 .

The control device 25 also displays countermeasure instruction information 71, a control panel layout button 72, a signal confirmation screen button 73, a line length button 74, a maintenance department button 75, and a manufacturer button 76 as countermeasure items 67. It should be noted that the control device 25 displays the main menu when the general button 79 at the lower right corner of the countermeasure item 67 is touched. The control device 25 displays the countermeasure instruction information 71 as information instructing countermeasures against the abnormality. In the example shown in FIG. 2, the control device 25 displays four countermeasure instruction information 71 arranged vertically, and the top countermeasure instruction information 71 is "Please cancel the trip of the motor breaker (M1XX)." display the message This "motor breaker (M1XX)" is the identification information of the breaker 29 tripped due to hydraulic pump failure. Further, the control device 25 displays a message as the second countermeasure instruction information 71, "Check if the oil pressure normal signal (X0008.0) is ON." This hydraulic pressure normal signal is a processed signal indicating normal operation of the hydraulic pump. The address (X0008.0) of the hydraulic pressure normal signal is the address of the contact 78A (see FIG. 3) for inputting the processing signal of the hydraulic pump described above. In addition, the control device 25 displays a message "Please confirm whether the hydraulic pump is operating normally." as the third countermeasure instruction information 71 . In addition, the controller 25 displays a message as the fourth countermeasure instruction information 71, "Check the rated value of the hydraulic pump motor and change the set value of the motor breaker (M1XX) to an appropriate value." do.

The control device 25 displays the countermeasure instruction information 71 in the countermeasure item 67 based on the information set in the control data 37 in advance, for example. By checking the countermeasure instruction information 71, the worker can determine what kind of countermeasures should be taken. However, depending on the technical ability, knowledge, execution authority, etc. of the worker, there are measures that cannot be implemented or measures that cannot be implemented. Therefore, the control device 25 has a control panel layout button 72, a signal confirmation screen button 73, a line length button 74, a maintenance department button 75, a manufacturer A button 76 (hereinafter sometimes referred to as a control panel layout button 72 or the like) is displayed in the countermeasure item 67 .

As shown in FIG. 2, the control device 25 displays the countermeasure instruction information 71 and the control panel layout button 72 and the like in one frame indicating the countermeasure item 67, and also displays the countermeasure instruction information 71 vertically in one column. , and the control panel layout map button 72 and the like are arranged vertically in a line to the right of the countermeasure instruction information 71 and displayed. That is, the control device 25 displays the countermeasure instruction information 71 and the control panel layout button 72 and the like in one frame so that they can be seen to be related at a glance.

When the control panel layout button 72 or the like is selected, the control device 25 displays on each of the function execution buttons such as the control panel layout button 72 characters suggesting what kind of support function is to be executed. Specifically, the control device 25 displays on the control panel layout diagram button 72 the characters "to the control panel layout diagram" suggesting that the support function for displaying the control panel layout diagram is to be executed. Similarly, the control device 25 displays characters "to the signal confirmation screen" on the signal confirmation screen button 73 for displaying the signal confirmation screen. Controller 25 also displays the words "contact line length" on line length button 74, suggesting that a support function to contact line length is to be performed. Similarly, the control device 25 displays the characters "contact the maintenance department" on the maintenance department button 75 for contacting the maintenance department, and the characters "contact the manufacturer" on the manufacturer button 76 for contacting the manufacturer. Text such as "contact line length" is an example of text that suggests contacting the contact indicated by the contact information of the present disclosure. As a result, the operator can intuitively grasp what kind of support function is to be executed, and the operator can quickly and appropriately execute the desired support function. The method of displaying characters described above is an example. For example, the characters "to control panel layout" may be displayed outside the control panel layout button 72 and at a position close to the control panel layout diagram button 72 . That is, even if the characters are not displayed in the button, any display method that can suggest the relationship with the button may be changed as appropriate. Also, the characters displayed on the line length button 74 may be other characters suggesting communication such as "send mail to line length".

The control device 25 executes each support function based on the touch operation of each button such as the control panel layout button 72 . First, the support function when the control panel layout map button 72 is touch-operated will be described. The button selection method is not limited to the touch operation, and may be a selection method using a push button or a selection button of the operation unit 52 (a selection method using physical keys). When the control panel layout button 72 is touch-operated, 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 indicating that the control panel layout has been displayed and that the tripping of the breaker 29 is requested on the upper portion of the screen 81 . Also, the control device 25 displays a control panel layout drawing 83 below the message 82 . In the control panel layout diagram 83, for example, the actual configuration of the control panel 31 (see FIG. 1) of the machine tool 10 is displayed, and a plurality of breakers 29, a plurality of amplifiers 85, and the like are provided. The control panel layout drawing 83 may be a captured image of the control panel 31 or a design drawing of the control panel 31 .

Therefore, the control device 25 provides countermeasure instruction information 71 that instructs countermeasures to close the breaker 29 (countermeasures to release the trip) when an abnormality (e.g., hydraulic pump abnormality) causing the breaker 29 to trip (open) occurs. is displayed on the abnormality notification screen 61 (see countermeasure instruction information 71 at the top of FIG. 2). Then, when the control panel layout diagram button 72 is touch-operated, the control device 25 executes a function of displaying an image of the control panel layout diagram 83 showing the control panel 31 of the machine tool 10 on the touch panel 51 as a support function. . As a result, the countermeasure instruction information 71 and the text of the control panel layout button 72 can prompt the operator to operate the control panel layout diagram button 72 . Further, by displaying the control panel layout drawing 83, the layout of the breakers 29 in the control panel 31 can be immediately confirmed.

In addition, the control device 25 displays information suggesting the position of the breaker 29 that has been opened due to the occurrence of the abnormality in 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 surrounding the entirety of the plurality of breakers 29 collectively arranged in one place. Thereby, the operator can be shown the position of the breaker 29 to be operated to recover from the abnormality, that is, the position of the tripped breaker 29 . Even an operator who does not have detailed knowledge of the control panel 31 can easily grasp the position of the breaker 29 and quickly perform the restoration work. As a result, the worker can carry out recovery work alone without contacting the line manager or the like.

It should be noted that the above display method for suggesting the position of the breaker 29 is an example. For example, as shown in an arrow image 89 in FIG. 4, an arrow indicating the position of the tripped breaker 29 (M1XX in FIG. 4) may be displayed. Also, the control device 25 may display only one of the frame image 87 and the arrow image 89 . Further, in the above example, the case of an abnormality in which the breaker 29 trips has been described, but the display processing of the control panel layout drawing 83 may be executed when another abnormality occurs. For example, the control panel layout drawing 83 is provided with an amplifier 85 that controls the power supplied to the motors that are the driving sources of the machine tool 10 . Each amplifier 85 is provided with an error lamp 85A for notifying an error. When the controller 25 detects an error in an arbitrary amplifier 85, the control device 25 displays countermeasure instruction information 71 requesting confirmation of the error lamp 85A of the amplifier 85 on the abnormality notification screen 61 (see FIG. 2). A frame image 87 or an arrow image 89 indicating the position of the amplifier 85 whose error lamp 85A is lit may be displayed on the screen 81 . As a result, the operator can quickly identify the abnormal amplifier 85 without knowledge of the layout of the amplifiers 85 .

Next, the support function when the signal confirmation screen button 73 is touch-operated will be described. When the signal confirmation screen button 73 is touch-operated, the control device 25 displays the 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. FIG. The control device 25 displays a message 92 "Please check the signal at the address displayed in red" (an example of information suggesting the position where the value of the processed signal of the present disclosure is displayed) at the top of the signal confirmation screen 91. indicate.

The address display column 93 is a column for displaying the addresses of the circuit components of the ladder circuit. For example, the above "X0008.0" indicates the zero bit of the 8th byte of the signal whose signal type is X. The signal type X indicates the type of externally input signal. Eight address display columns 93 are vertically displayed on the signal confirmation screen 91, and the address is incremented by one byte as it goes to the lower row, such as "X0008", "X0009", ..., "X00015". there is The signal value display column 94 is provided with a display column for 1 byte (8 bits) of the address of the address display column 93 . Above the signal value display field 94, numbers 7 to 0 are displayed in order from the left as numbers indicating the bit numbers. Each display column of the signal value display column 94 displays the signal value (bit value) of the 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 column of the signal value display column 94 indicates the signal of address (X0008.7).

Therefore, when an abnormality occurs in which a processing signal indicating normal operation is not input to the contact 78A of the ladder circuit 78, the control device 25 displays on the abnormality notification screen 61 countermeasure instruction information 71 instructing countermeasures for confirming the processing signal. (See the second item from the top of the countermeasure instruction information 71 in FIG. 2). Then, when the signal confirmation screen button 73 is touch-operated, the control device 25 executes a support function of displaying a signal confirmation screen 91 for confirming the processed signal on the touch panel 51 . Accordingly, the operator can operate the signal confirmation screen button 73 according to the countermeasure instruction information 71 and the guidance of the signal confirmation screen button 73 to confirm the value of the processed signal. Appropriate action can be taken according to the value of the processed signal.

In addition, the control device 25 displays, on the signal confirmation screen 91, information suggesting the position of the signal that is the basis for determining that there is an abnormality. As shown in FIG. 5, the control device 25, for example, highlights the display column of the address (X0008.0) of the contact 78A for inputting the processing signal of the hydraulic pump in red (see hatching in FIG. 5). . Therefore, the control device 25 displays the address assigned to the contact 78A in the ladder circuit 78 as the countermeasure instruction information 71 as shown in the countermeasure item 67 in FIG. 2 (second countermeasure instruction information 71 from the top). Then, the control device 25 displays the address of the contact 78A and the value of the processing signal in association with each other on the signal confirmation screen 91, and information suggesting the position where the value of the processing signal is displayed (information in red). display. As a result, even an operator who has no knowledge of the address of the ladder circuit 78 or the signal confirmation screen 91 can easily determine which signal should be confirmed. Also, by displaying the message 92, it is possible to tell the worker which signal should be confirmed in an easy-to-understand manner. The color to be attached to the position of the signal to be confirmed is not limited to red, and may be another color such as yellow. Moreover, the method of indicating the position of the signal to be confirmed is not limited to the above-described coloring method. For example, the control device 25 may suggest the position of the signal to be confirmed by an arrow image 89 or the like as shown in FIG.

Also, the control device 25 updates the display contents 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 receives the value of the address that the operator wants to display in the address input field 96, and displays the signal confirmation screen 91 that displays the address input in the address input field 96 based on the touch operation of the search button 97. Displayed on the touch panel 51 . A ladder circuit includes multiple circuit components. Therefore, as the signal confirmation screen 91, there are screens in which the address of the contact 78A is not displayed, such as a screen displayed from X0100.0 on the upper left of the screen and a screen displayed from X1000.0. The control device 25 updates the signal confirmation screen 91 so that, for example, the address value input in the address input field 96 is displayed on the top line.

On the other hand, as described above, the control device 25 responds to the address (X0008.0) of the contact 78A, that is, the abnormality selected in the abnormality item 64 based on the touch operation of the signal confirmation screen button 73 in FIG. A signal confirmation screen 91 displaying the address of the contact 78A to be confirmed by the operator is displayed at the contact 78A for inputting the processing signal. In other words, the operator can display on the touch panel 51 the value of the processed signal to be confirmed to restore the selected abnormality by simply selecting the abnormality to be confirmed from the abnormality item 64 and pressing the signal confirmation screen button 73 . . As a result, it is possible to shorten the work time of the operator for signal confirmation. Note that the control device 25 may display the signal confirmation screen 91 in which the address (X0008.0) of the contact 78A is not displayed based on the touch operation of the signal confirmation screen button 73 . For example, the control device 25 holds the address of the signal confirmation screen 91 displayed according to the operator's previous operation input, and displays the previously displayed signal confirmation screen 91 based on the touch operation of the signal confirmation screen button 73. may be displayed. That is, the control device 25 may display the signal confirmation screen 91 in which the address to be confirmed is not displayed, such as the previous display screen, based on the touch operation of the signal confirmation screen button 73 .

In addition, 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 trip of the breaker 29 be cancelled, and the countermeasure instruction information prompting confirmation of the signal. A signal confirmation screen button 73 is displayed to the right of 71 . As a result, the operator can easily determine which button is the function execution button of the support function required to execute the countermeasure indicated by each piece of countermeasure instruction information 71 . Further, as shown in FIG. 2, the control device 25 displays, as countermeasure instruction information 71, an instruction to check the operation of the hydraulic pump and an instruction to change the set value, in addition to the above-described two pieces of countermeasure instruction information 71. FIG. However, depending on the worker, it may be difficult to judge how far the countermeasure instruction information 71 should be viewed. Therefore, the control device 25 displays function execution buttons for contacting the line manager, the maintenance department, and the manufacturer.

The control device 25 displays characters such as "contact the line manager" on each of the line length button 74, the maintenance department button 75, and the manufacturer button 76, suggesting contacting each contact. Then, when each function execution button is touch-operated, the control device 25 executes a support function of contacting the contact of the operated button. Specifically, for example, when the line length button 74 is touch-operated, the control device 25 inputs a subject and text indicating that an abnormality has occurred to the email address of the line length set in the contact information 38. send an email. Similarly, the control device 25 sends an e-mail to the person in charge of the maintenance department when the maintenance department button 75 is touch-operated, and sends an e-mail to the person in charge of the manufacturer when the manufacturer button 76 is touch-operated. Send. As a result, when an abnormality occurs that the operator cannot handle, it is possible to quickly contact a person with more technical ability and knowledge. For example, when a worker cannot cope with the problem at his own technical level, he first contacts the line manager. Next, if there is an abnormality that cannot be dealt with even by the line length, the maintenance department is contacted. If there is an abnormality that cannot be dealt with even by the maintenance department, the manufacturer can be contacted.

In addition, the control device 25 notifies each contact by e-mail of the information of the abnormal item 64, the information item 65, the cause item 66, and the countermeasure instruction information 71 described above. For example, when the line length button 74 is touch-operated, the control device 25 inputs information such as the abnormal item 64 into the body of the mail and sends it to the line length. As the information of the abnormality item 64, the information of "NO", "details", "occurrence date and time", and "system" of the abnormality being selected (hydraulic pump abnormality in this case) may be transmitted. You may send all the information displayed in As a result, the person in charge, such as the line manager, who receives the notification can check the content of the email to consider what action should be taken, or prepare alternative parts. Therefore, it is not necessary to hear all the contents of the abnormality from the on-site worker, and it is possible to consider the response policy and response method from a remote location. Also, you can head to the site after making appropriate preparations. It should be noted that the control device 25 does not have to send the information such as the abnormal item 64 in the form of mail. 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 the email to each contact.

Further, when the line length button 74 or the maintenance department button 75 is touch-operated, the control device 25 notifies the contact of the selected button of the installation location information indicating the installation location of the machine tool 10 in the production factory by e-mail. . The control device 25 uses, as installation location information, for example, the factory name/building name where the machine tool 10 is installed, the number of the pillar on the floor of the factory near the location where the machine tool 10 is installed, and the location where the machine tool 10 is installed. The line name of the production line, etc. may be transmitted. As a result, the line manager or the person in charge of the maintenance department can grasp the installation location of the machine tool 10 in which the abnormality has occurred by checking the installation location information in the email. Therefore, it is possible to shorten the time until the contact person in charge arrives at the site.

On the other hand, the installation location information described above is likely to be unnecessary information for manufacturers. This is because there is a high possibility that when a person from the manufacturer visits a factory in which the machine tool 10 is installed, he or she will be guided to the machine tool 10 by a factory worker. Therefore, when the manufacturer button 76 is touch-operated, the control device 25 does not notify the manufacturer of the installation location information described above. As a result, by not transmitting unnecessary information to the manufacturer, it is possible to prevent the content of the mail from becoming difficult to grasp. The person in charge of the manufacturer can more accurately grasp the necessary information.

Also, the control device 25 changes the contact method based on the schedule data 39 (see FIG. 1). As described above, the contact information 38 stores information such as the line manager's schedule for coming to work. For example, when the line length button 74 is touch-operated, the control device 25 checks the schedule data 39 and, if the line length is on vacation, sends an e-mail and executes a call by mobile phone. For example, the control device 25 converts part or all of the information to be sent by e-mail into voice data, calls the mobile phone, and reproduces the generated voice data. As a result, when there is a high possibility that the line manager or the like is on vacation and has not checked the e-mail using a PC or the like, contact can be made by the mobile phone. Note that the control device 25 may notify the line length or the like of the abnormality information using a so-called short mail service or e-mail service of a mobile phone. Also, the control device 25 may execute only one of notification by e-mail and voice notification to the telephone. Also, the control device 25 may execute mail or voice notification without confirming the schedule by the schedule data 39 .

As shown in FIG. 1, the control section 33 of the control device 25 has a display processing section 33A and a function processing section 33B. The display processing unit 33A and the like are processing modules realized by executing a program of the control data 37 in the CPU of the control unit 33, for example. The display processing unit 33A and the like may be configured by hardware instead of software, or may be configured by combining software and hardware.

When an abnormality occurs in the machine tool 10, the display processing unit 33A displays countermeasure instruction information 71 for instructing countermeasures against the abnormality and function execution buttons (control panel layout button 72, etc.) associated with the countermeasure instruction information 71. It is a functional unit that displays on the touch panel 51 . The display processing unit 33A is a functional unit that displays characters on the touch panel 51 indicating that the function execution buttons such as the control panel layout button 72 are buttons for executing the support functions related to the countermeasure instruction information 71. be. The function processing unit 33B is a function unit that executes a support function when a function execution button such as the control panel layout button 72 displayed on the touch panel 51 is selected.

By the way, the touch panel 51 is an example of the display unit and reception unit of the present disclosure. The operation unit 52 is an example of a reception unit. The control panel layout button 72, signal confirmation screen button 73, line length button 74, maintenance department button 75, and manufacturer button 76 are examples of function execution buttons. 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 the abnormality.

As described above, the present embodiment described above has the following effects.
In one aspect of the present embodiment, when an abnormality occurs in the machine tool 10, the control device 25 displays countermeasure instruction information 71 that instructs countermeasures against the abnormality, and also displays the countermeasure item 67 that displays the countermeasure instruction information 71. Function execution buttons such as the control panel layout button 72 are displayed within the frame. In addition, the control device 25 displays on each function execution button a character suggesting execution of a support function, such as "to control panel layout". Then, when any function execution button is touch-operated, the control device 25 executes the support function corresponding to that function execution button.

According to this, the operator can check the countermeasure instruction information 71, determine which support function should be executed by looking at the characters, and execute the desired support function by selecting the function execution button. Therefore, by displaying countermeasures based on the countermeasure instruction information 71, suggesting support functions by text, and executing support based on selection of the function execution button, it is possible to more quickly execute countermeasures against anomalies.

It goes without saying that the present disclosure is not limited to the above embodiments, and that various improvements and modifications are possible without departing from the scope of the present disclosure.
For example, the configuration of the machine tool 10 of the above embodiment is an example. The machine tool 10 may display the countermeasure instruction information 71, the control panel layout button 72, and the like on a display such as an LCD, without the touch panel 51, and accept selection of the control panel layout button 72 with an operation switch or the like. .
Also, in the example shown in FIG. 2, the control device 25 displays a plurality of countermeasure instruction information 71, but may display only one countermeasure instruction information 71. FIG.
Also, the control device 25 may display only one function execution button such as the control panel layout button 72 . Therefore, the control device 25 may be configured to execute only one of the support functions of displaying the control panel layout diagram 83, displaying the signal confirmation screen 91, and sending emails to each person in charge.
Also, the control device 25 may change the function execution button to be displayed according to the content of the abnormality selected in the abnormality item 64 .

Also, the characters displayed on the control panel layout button 72 and the like shown in FIG. 2 are examples. For example, the control device 25 may display characters such as "to display the 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 execute?"
Also, the control device 25 does not have to display information suggesting the position of the breaker 29, such as the frame image 87 and the arrow image 89 shown in FIG. In addition, the suggestive information is not limited to an image, and may be textual information such as "Please check the Xth breaker from the right and the Xth breaker from the top".

The ladder circuit 78 shown in FIG. 3 is an example. For example, a ladder circuit 78 may be constructed in which a processing signal for notifying an abnormality is input from the motor of each drive source to the contact 78A, and a coil 78B for notifying an abnormality is connected when the processing signal indicating the abnormality is input. good.
Also, the signal confirmation screen 91 shown in FIG. 4 is an example. For example, the notation of the value of each signal in the signal value display field 94 may be displayed with characters such as ON if the bit value is 1 and OFF if the bit value is 0.
In addition, although the control device 25 displays the position of the value of the processed signal to be confirmed in color, it is also possible not to display the information suggesting the position where the value of the processed signal is displayed. The control device 25 does not have to execute red highlighting or display of the message 92 . Further, the information suggesting the position may be textual information such as "Please check the value of the X-th signal from the right and the X-th signal from the top".

In addition, the contact information such as the line length, the maintenance department, the manufacturer, etc. described above is an example. Such contact information is appropriately changed according to the size of the company of the machine tool 10, the department, the repair system of the manufacturer, and the like. For example, if the company does not have a maintenance department, the maintenance department button 75 is unnecessary. In addition, if the manufacturer outsources the repair, add the outsourced repair company to the contact information, display characters such as "contact repair company", and provide a function execution button to contact the repair company. Also good.
The screen configuration shown in FIG. 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. FIG.
Further, the control device 25 does not have to notify the line manager or the like of all the information of the error item 64, the information item 65, the cause item 66, and the countermeasure instruction information 71 by e-mail. can be
Further, the control device 25 may not notify the line manager or the maintenance department of the installation location information of the machine tool 10, and may notify the manufacturer of the installation location information.

10 machine tool, 21 power supply, 25 control device, 27 display operation device, 26 controller, 29 breaker, 31 control panel, 51 touch panel (display unit, reception unit), 33A display processing unit, 33B function processing unit, 35 storage unit , 38 Contact information, 52 Operation unit (reception unit), 64 Error items, 65 Information items, 66 Cause items, 71 Countermeasure instruction information, 72 Control panel layout 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

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 is
When an abnormality occurs in the machine tool, countermeasure instruction information for instructing countermeasures against the abnormality and a function execution button associated with the countermeasure instruction information are displayed on the display unit, and the function execution button is a display processing unit for displaying on the display unit characters suggesting that the button is for executing a support function related to the countermeasure instruction information;
a function processing unit that executes the support function based on the selection of the function execution button displayed on the display unit;
A machine tool having
a power supply;
a breaker that is provided on the control panel and opens to cut off the power supply from the power supply device;
further comprising
The display processing unit
displaying on the display unit the countermeasure instruction information instructing countermeasures for closing the breaker when the abnormality that the breaker opens occurs,
The function processing unit
2. The machine tool according to claim 1, wherein when the abnormality that the breaker opens occurs, a function of displaying an image showing the control panel of the machine tool on the display unit is executed as the support function.
The function processing unit
3. The machine tool according to claim 2, 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.
with a controller that runs a ladder circuit,
The ladder circuit is
A circuit component for inputting a processing signal indicating that the machine tool operates normally,
The display processing unit
displaying, on the display unit, the countermeasure instruction information instructing countermeasures for confirming the processed signal when the abnormality occurs in which the processed signal is not input to the circuit component;
The function processing unit
3. A function of displaying a signal confirmation screen for confirming the processing signal on the display unit is executed as the support function when the abnormality occurs in which the processing signal is not input to the circuit component. The machine tool according to any one of 1.
The display processing unit
displaying an address assigned to the circuit component in the ladder circuit as the countermeasure instruction information;
The function processing unit
5. The signal confirmation screen according to claim 4, wherein the address of the circuit component and the value of the processed signal are displayed in association with each other, and information indicating a position where the value of the processed signal is displayed is displayed. machine tools.
contact information indicating at least one of a line manager who is an administrator of a production line in which the machine tool is installed, a maintenance department in charge of repairing the machine tool, and a manufacturer of the machine tool; further comprising a storage unit,
The display processing unit
displaying on the function execution button the characters suggesting contacting the contact indicated by the contact information;
The function processing unit
6. The tool according to any one of claims 1 to 5, wherein the support function of contacting the contact indicated by the selected contact information is executed based on the selection of the function execution button. machine.
The display processing unit
displaying on the display unit an abnormality item indicating the occurrence of the abnormality in order of date and time of occurrence, an information item indicating information about the abnormality, and a cause item indicating an estimated cause of the abnormality;
The function processing unit
Based on the selection of the function execution button, the contact indicated by the contact information is contacted, and the error item, the information item, the cause item, and the countermeasure instruction information are transferred to the contact information. 7. The machine tool of claim 6, wherein the indicated contact is notified.
The display processing unit
displaying the three function execution buttons corresponding to each of the line length, the maintenance department, and the manufacturer;
The function processing unit
When the function execution button of the line manager or the maintenance department is selected, the installation location information indicating the installation location of the machine tool in the production factory is notified to the contact indicated by the characters of the selected function execution button. 8. The machine tool according to claim 7, wherein said installation location information is not notified to said manufacturer when said function execution button of said manufacturer is selected.