JP2022172342A - Information processor, information processing method, and information processing system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To give a notice according to a state of a tool.

SOLUTION: An acquisition part 30D acquires detection information concerning a physical amount which changes according to an operation state of a processor 20 for processing an object 60, and specification information including at least one of tool specification information which represents a specification of a tool 59 provided on the processor 20 and an object specification information which represents a specification of the object 60. A wear value specification part 30G specifies a wear value of the tool 59 on the basis of the detection information. A change part 30P changes a form of notice to the exterior according to the wear value and tool specification information.

SELECTED DRAWING: Figure 4

COPYRIGHT: (C)2023,JPO&INPIT

Description

The present invention relates to an information processing device, an information processing method, and an information processing system.

2. Description of the Related Art A device for monitoring the state of a tool provided in a machine tool such as a lathe is known. Also, there is known a technique for predicting and displaying the time when the tool life is reached as a result of monitoring the tool state.

For example, Patent Literature 1 discloses detecting a load acting on a tool using an ammeter provided in a circuit that supplies drive current to a spindle motor. Patent Document 1 discloses that an approximation formula of load change is created from the statistics of the detected load, the approximation formula is used to predict the remaining number of pieces that can be processed, and the prediction result is displayed. It is

However, conventionally, it was only possible to display the prediction of the service life, and it was not possible to make a notification according to the state of the tool.

The present invention has been made in view of the above, and provides an information processing device, an information processing method, and an information processing system that can notify according to the state of a tool provided in a target device. With the goal.

In order to solve the above-described problems and achieve the object, an information processing device provides detection information of physical quantities that change according to the operation status of a target device that processes an object, and specification of a tool provided in the target device. and an acquisition unit that acquires specification information including at least one of tool specification information indicating the specification of the target and target object specification information indicating the specification of the target, and based on the detection information and a pre-stored detection model, the tool a derivation unit for deriving a load level to the target device when machining by the tool is continued based on the specification information; A determination unit that determines a wear threshold value, and a notification control unit that issues a notification when the wear value specified by the first specification unit is equal to or greater than the determined wear threshold value.

ADVANTAGE OF THE INVENTION According to this invention, it is effective in the ability to perform the notification according to the state of the tool with which the target apparatus was equipped.

FIG. 1 is a schematic diagram showing an overview of a configuration example of an information processing system. FIG. 2 is a block diagram showing an example of the hardware configuration of the processing machine. FIG. 3 is a block diagram showing an example of the hardware configuration of the diagnostic device. FIG. 4 is a block diagram showing an example of the functional configuration of each of the processing machine and diagnostic device. FIG. 5 is a schematic diagram showing an example of the data configuration of the wear threshold management DB and the notification form management DB. FIG. 6 is a schematic diagram showing an example of the data configuration of the detection model and the processing amount model. FIG. 7 is a schematic diagram showing an example of a display screen. FIG. 8 is an explanatory diagram of calculation by the calculation unit. FIG. 9 is a flowchart showing an example of an information processing procedure. FIG. 10 is a block diagram showing an example of the functional configuration of the information processing system. FIG. 11 is a schematic diagram showing an example of the data configuration of a wear threshold management DB. FIG. 12 is a flowchart illustrating an example of an information processing procedure.

Exemplary embodiments of an information processing device, an information processing method, and an information processing system will be described in detail below with reference to the accompanying drawings. In this embodiment, an example in which the information processing apparatus is applied to a diagnosis apparatus will be described.

(First embodiment)
FIG. 1 is a schematic diagram showing an overview of a configuration example of an information processing system 1000 according to this embodiment.

The information processing system 1000 includes a processing machine 20 and a diagnostic device 10 . The diagnostic device 10 and the processing machine 20 are communicably connected. The processing machine 20 and the diagnostic device 10 may be connected in any connection form. For example, the processing machine 20 and the diagnostic device 10 are connected by a dedicated connection line, a wired network such as a wired LAN (local area network), a wireless network, or the like.

The processing machine 20 is an example of a target device to be diagnosed by the diagnostic device 10 . The processing machine 20 is provided with a machine tool 23 . The machine tool 23 is a machine that processes an object to be processed. The machine tool 23 is provided with a tool 59 and uses the tool 59 to machine the object 60 . The tool 59 is, for example, a cutting member for cutting the object 60, a polishing member for polishing the object 60, or the like. Specifically, the tool 59 is a drilling tool such as a drill or a boring tool, or a cutting tool such as a cutter or a cutting tool.

The target object 60 is a target member to be processed by the processing machine 20 . The object 60 may be any member to be processed by the tool 59 .

The diagnostic device 10 is a device for diagnosing the processing machine 20 . A tool 59 provided in the processing machine 20 is worn by processing the object 60 . In the present embodiment, diagnostic device 10 diagnoses the state of tool 59 .

FIG. 2 is a block diagram showing an example of the hardware configuration of the processing machine 20. As shown in FIG. As shown in FIG. 2, the processing machine 20 includes a CPU (Central Processing Unit) 51, a ROM (Read Only Memory) 52, a RAM (Random Access Memory) 53, a communication I/F (interface) 54, a drive A control circuit 55 , a motor 56 and a sensor 57 are connected by a bus 58 .

The CPU 51 controls the processing machine 20 as a whole. The CPU 51 executes a program stored in the ROM 52 or the like using the RAM 53 as a work area, for example, thereby controlling the overall operation of the processing machine 20 and realizing the processing function.

Communication I/F 54 is an interface for communicating with an external device such as diagnostic device 10 . The drive control circuit 55 is a circuit that controls driving of the motor 56 . Motor 56 drives tool 59 .

FIG. 3 is a block diagram showing an example of the hardware configuration of the diagnostic device 10. As shown in FIG. As shown in FIG. 3, the diagnostic apparatus 10 includes a CPU 61, a ROM 62, a RAM 63, a communication I/F 64, a HDD (Hard Disk Drive) 65, an operation panel 67, a speaker 68, and a lamp 69. , are connected by a bus 66 .

The operation panel 67 includes a display device 67A and an operation device 67B. The display device 67A is, for example, a liquid crystal panel or an organic EL (Electro Luminescence) panel. The operating device 67B is, for example, a keyboard or mouse. Note that the operation panel 67 may be a touch panel in which the display device 67A and the operation device 67B are integrally configured.

The speaker 68 outputs sound to the outside. Lamp 69 outputs light of a particular color. In this embodiment, the lamp 69 lights in three colors of red, yellow and green. Note that the lighting color of the lamp 69 is not limited to these three colors. Also, the lamp 69 may be capable of outputting light of two colors or less, or light of four colors or more.

The CPU 61 controls the diagnostic device 10 as a whole. The CPU 61 executes a program stored in the ROM 62 or the like using the RAM 63 as a work area, for example, thereby controlling the overall operation of the diagnostic device 10 and realizing the diagnostic function. Communication I/F 64 is an interface for communicating with an external device such as processing machine 20 . The HDD 65 stores information such as setting information of the diagnostic device 10 and detection information received from the processing machine 20 . Instead of the HDD 65, or together with the HDD 65, a non-volatile storage means such as EEPROM (Electrically Erasable Programmable Read-Only Memory) or SSD (Solid State Drive) may be provided.

FIG. 4 is a block diagram showing an example of the functional configuration of each of the processing machine 20 and diagnostic device 10 provided in the information processing system 1000. As shown in FIG.

The processing machine 20 includes a numerical controller 21 , a communication controller 22 and a machine tool 23 .

The machine tool 23 is a machine that is driven under the control of the numerical control unit 21 to machine the object 60 to be machined. The machine tool 23 includes a sensor 25 , a drive section 24 and a tool 59 .

The driving section 24 drives the tool 59 under the control of the numerical control section 21 . The object 60 is machined by driving the tool 59 . The drive unit 24 is implemented by, for example, a motor 56 (see FIG. 2). The drive unit 24 may be of any type as long as it is used for machining and subject to numerical control. Moreover, the machine tool 23 may include a plurality of drive units 24 .

It should be noted that the processing machine 20 is described assuming that one tool 59 operates at a time. That is, even if the machine tool 23 is configured to include a plurality of tools 59, the description will be made assuming that only one tool 59 operates at a time. Note that the tool 59 may be changed depending on the type of machining process.

The sensor 25 is a detection unit that detects a physical quantity that changes according to the operating conditions of the processing machine 20 . The sensor 25 transmits detection information (sensor data) of the detected physical quantity to the diagnostic device 10 . Sensor 25 corresponds, for example, to sensor 57 in FIG.

In the present embodiment, the physical quantity may be data indicating vibration of the processing machine 20 (specifically, the machine tool 23). The data indicating the vibration includes vibration data indicating the vibration itself, sound data of the sound generated by the vibration, sound wave data of the sound wave generated by the vibration (AE wave data), acceleration data of the acceleration generated by the vibration, and the like. The sensor 25 is, for example, a microphone, a vibration sensor, an acceleration sensor, an AE (acoustic emission) sensor, or the like.

As the tool 59 processes the object 60, the tool 59 is worn. Then, the vibrations (sound, acceleration, sound waves, etc.) generated when the object 60 is processed by the machine tool 23 are different. In the present embodiment, the diagnostic device 10 uses the detection information to determine the remaining life of the tool 59 (details will be described later).

Note that the number of sensors 25 provided in the processing machine 20 is not limited. That is, the processing machine 20 may be configured with one sensor 25, may be configured with a plurality of sensors 25 for detecting the same physical quantity, or may be configured with a plurality of sensors 25 for detecting different physical quantities. sensor 25 may be provided.

The numerical control unit 21 numerically controls the machine tool 23 . Numerical control unit 21 generates control data for controlling the operation of drive unit 24 and outputs the control data to drive unit 24 . Numerical control unit 21 also transmits context information about the current operating state of drive unit 24 to diagnostic device 10 . That is, the numerical control unit 21 transmits to the diagnostic device 10 context information regarding the operating state indicated by the control data currently transmitted (or transmitted immediately before) to the drive unit 24 .

The context information includes operating state information of the machine tool 23 and machining history information. In the present embodiment, the context information is information determined for each type of operation (type of processing) performed by the processing machine 20 (specifically, the machine tool 23).

The operating state information is information indicating the operating state of the driving section 24 , and is information indicating the operating state of the driving section 24 indicated in the control data for controlling the driving section 24 . The operating state information includes, for example, tool specification information indicating specifications of the tool 59 used for machining, identification information of the drive unit 24 that drives the tool 59, the number of rotations of the drive unit 24, the rotation speed of the drive unit 24, the rotation speed of the drive unit 24, and the , the size of the drive unit 24, and the like.

The tool specification information is information indicating the specification of the tool 59 used for machining. In this embodiment, the tool specification information only needs to include information from which the control unit 30 can derive the load level to the processing machine 20 main body when the machining by the tool 59 is continued. Specifically, in the present embodiment, the tool specification information includes identification information of the tool 59 (hereinafter sometimes referred to as a tool ID), the name of the tool 59, type information indicating the type of the tool 59, It includes material information indicating the material and dimension information indicating the dimensions of the tool 59 .

The tool 59 type information is information indicating the type of the tool 59 . The type information is determined in advance according to the processing method. In the present embodiment, an example will be described in which the type information indicates a drilling tool (such as a drill) or a cutting tool (such as a cutting tool or cutter).

Specifically, if the tool 59 is a drilling tool such as a drill, the dimensional information of the tool 59 indicates the diameter of the tool 59 (drill diameter, etc.). Also, the dimensional information of the tool 59 indicates the width of the blade portion (blade width) when the tool 59 is a cutting tool such as a cutter.

The processing history information is information related to the processing history of the processing machine 20 . Specifically, the machining history information is information relating to the machining history of the tool 59 identified by the tool ID included in the context information including the machining history information. The machining history information includes at least one of a cumulative machining amount and information capable of specifying the cumulative machining amount as information on the machining history.

The cumulative machining amount is the cumulative value of the machining amount of the object 60 machined by the tool 59 . In other words, the cumulative machining amount is the cumulative amount of machining of one or more types of objects 60 by a certain tool 59 . The amount of processing should just be information which shows the amount processed. The cumulative machining amount included in the context information is specifically the cumulative machining amount of the object 60 machined by the tool 59 identified by the tool ID included in the context information. The amount of processing specifically indicates a cutting distance or cutting time. Therefore, the cumulative machining amount indicates cumulative cutting distance and cumulative cutting time.

The information that can specify the cumulative machining amount may be any information that can specify the cumulative machining amount in which the object 60 is machined by the tool 59 identified by the tool ID included in the context information. Information that can specify the cumulative amount of machining is, for example, cutting distance and number of machining times per machining, cutting time and number of machining times per machining, spindle rotation speed and number of machining times per machining, 1 They are the feed amount per machining time, the number of machining times, the size of the object 60 to be machined, the number of the machined objects 60, and the like.

The numerical control unit 21 generates control data corresponding to the type of operation (type of processing) corresponding to each processing step according to the preset order of execution of the processing steps, and outputs the control data to the driving unit 24 . As a result, the drive unit 24 executes an operation according to the operating state indicated by the control data to drive the tool 59 . Numerical control unit 21 also transmits context information including operating state information and processing history information of the operating state to diagnostic device 10 .

The context information that the numerical control unit 21 transmits to the diagnostic device 10 includes machining history information (including at least one of an accumulated machining amount and information that can specify the accumulated machining amount) regarding the machining history. Numerical control unit 21 may output context information including current operating state information and processing history information to diagnostic device 10 .

In the present embodiment, a form in which numerical control unit 21 outputs context information including current operating state information and processing history information to diagnostic device 10 will be described. The current operating state information is operating state information indicating the operating state indicated by the control data transmitted to the machine tool 23 immediately before by the numerical control unit 21 . Further, the machining history information included in the context information transmitted by the numerical control unit 21 to the diagnostic device 10 is the cumulative machining amount of the tool 59 at the time of transmission (that is, at present), and information capable of specifying the cumulative machining amount. , at least one of

The communication control unit 22 controls communication with an external device such as the diagnostic device 10 . For example, the communication control unit 22 transmits context information received from the numerical control unit 21 to the diagnostic device 10 .

Numerical control unit 21 may output context information to diagnostic device 10 in response to a context information acquisition request from diagnostic device 10, or may output context information to diagnostic device 10 at predetermined timings. good too. For example, each time the numerical control unit 21 outputs to the drive unit 24 control data corresponding to context information including operation state information corresponding to the type of operation (type of processing) corresponding to each processing step, the operation state Contextual information, including information and current machining history information, may be sent to diagnostic device 10 .

Next, the functional configuration of diagnostic device 10 will be described. The diagnostic device 10 includes a control section 30 , a storage section 32 , an operation section 33 and a display section 34 . The control unit 30, the storage unit 32, the display unit 34, and the operation unit 33 are connected so as to be able to exchange data and signals.

The display unit 34 displays various images. The display unit 34 is realized by, for example, a display device 67A (see FIG. 3). The operation unit 33 is operated by the user. The operation unit 33 is implemented by, for example, 67B (see FIG. 3). Note that the display unit 34 and the operation unit 33 may be configured integrally to form a touch panel.

The speaker 36 outputs sound to the outside. The speaker 36 is implemented by, for example, a speaker 68 (see FIG. 3). Lamp 35 outputs light of a particular color. The lamp 35 is realized, for example, by a lamp 69 (see FIG. 3).

The storage unit 32 stores various information. The storage unit 32 is implemented by the HDD 65 in FIG. 3, for example. The storage unit 32 stores, for example, a wear threshold management DB 32A, a notification form management DB 32B, a detection model 32C, and a processing amount model 32D.

FIG. 5 is a schematic diagram showing an example of the data configuration of the wear threshold management DB 32A and the notification form management DB 32B.

FIG. 5A is a schematic diagram showing an example of the data configuration of the wear threshold management DB 32A. The wear threshold management DB 32A is a database for managing information on the wear threshold of the tool 59. FIG. Note that the data format of the wear threshold management DB 32A is not limited to a database.

The wear threshold management DB 32A associates the type of tool, tool specification information, the load level on the main body of the processing machine 20 due to continuation of machining, the wear threshold L, and the importance of notification. The load level on the main body of the processing machine 20 due to continuation of machining is information indicating the level of load applied to the main body of the processing machine 20 when the tool 59 of the corresponding tool specification information is used to continue machining. For example, when the tool 59 is a drill, the larger the diameter (thicker), the greater the load applied to the main body of the processing machine 20 when machining is continued. The load level in the wear threshold management DB 32A is a value indicating the level of this load.

The wear threshold L is a threshold used by the control unit 30 of the diagnostic device 10 to determine the timing of changing the notification form. A wear threshold value L indicates a threshold value of the wear value. Details of the notification form will be described later.

The notification importance indicates the importance of notification. The higher the importance of the notification, the more urgent the processing machine 20 is. In this embodiment, a case of using four levels of notification importance will be described. Note that the notification importance level may be 3 levels or less, or 5 levels or more. In the present embodiment, four levels of notification importance are defined: 1st level (normal level), 2nd level (warning 1 level), 3rd level (warning 2 level), and 4th level (warning level). do. Note that the first level has the lowest notification importance, the second level, the third level, and the fourth level have the highest notification importance, and the fourth level has the highest notification importance.

The wear threshold management DB 32A stores information (type of tool, tool specification information, load level on the main body of the processing machine 20 due to continuation of machining, wear threshold L, notification importance) by processing of the control unit 30, which will be described later. Each value is registered.

Next, the notification form management DB 32B will be described. FIG. 5B is a schematic diagram showing an example of the data configuration of the notification form management DB 32B. The notification form management DB 32B is a database for managing notification forms. The notification form management DB 32B is a database in which notification importance and notification forms are associated with each other. Note that the data format of the notification form management DB 32B is not limited to a database.

In the notification form management DB 32B, each notification importance level is associated in advance with a notification form capable of calling a stronger attention to the user as the notification importance level increases.

The notification form indicates the form of notification issued from the diagnostic device 10 to the outside of the diagnostic device 10 . In this embodiment, the notification form includes notification content and notification method.

The content of notification includes at least one of lighting method, lighting color, sound volume, display content, and communication content to the outside. The notification method includes at least one of display, light emission, sound output, and communication to an external device.

Specifically, the notification method indicates the device used for notification. That is, in the present embodiment, the notification method is any of the display unit 34 (display device 67A), the speaker 36 (speaker 68), the lamp 35 (lamp 69), and the transmission unit 30B (communication I/F 64). indicates whether to use At least one of display unit 34 (display device 67A), speaker 36 (speaker 68), lamp 35 (lamp 69), and transmission unit 30B (communication I/F 64) corresponds to notification unit 37.

In addition, in the present embodiment, the notification content indicates the content to be notified using the device indicated by the above notification method. For example, the content of the notification using the lamp 35 indicates the lighting color and the lighting method (lighting or blinking). Also, the content of the notification using the speaker 36 indicates the volume (strong or weak, etc.). Further, the content of notification using the display unit 34 indicates the display content displayed on the display unit 34 . Also, the content of the notification using the transmission unit 30B indicates the content of the mail notification to the external device and the content of the signal output to the processing machine 20. FIG.

Returning to FIG. 4, next, the detection model 32C and the machining amount model 32D will be described.

The detection model 32C is a model that shows the relationship between the wear actual measurement value of the tool 59 and the detection actual measurement value. In the present embodiment, a case where the detection model 32C is a database that associates actual wear values of the tool 59 with actual detection values will be described as an example. Incidentally, in the present embodiment, the measured value indicates a value obtained by actual measurement. Specifically, the measured value indicates a directly measured value, not a value obtained by calculation.

FIG. 6 is a schematic diagram showing an example of the data configuration of the detection model 32C and the processing amount model 32D. FIG. 6A is a schematic diagram showing an example of the data configuration of the detection model 32C. The detection model 32C associates the tool ID, the wear actual measurement value, and the detection actual measurement value.

The measured wear value is a measured wear value of the tool 59 identified by the tool ID. A wear value is a value indicating the degree of wear of the tool 59 . The wear value is, for example, the wear amount (length) of the tool 59, the worn weight of the tool 59, and the like. Specifically, the wear value indicates the amount of wear and the weight of the worn tool 59 with reference to the unworn state of the tool 59 . The detected measured value is the measured value of the physical quantity detected by the sensor 25 of the processing machine 20 equipped with the tool 59 identified by the corresponding tool ID and worn to the corresponding measured wear value.

That is, the detection model 32C includes a wear value of the tool 59 when one tool 59 is mounted on the machine tool 23 and one or more objects 60 are machined with the tool 59, and It is an actual measurement result obtained by actually measuring each of detection information detected by the sensor 25 of the machine 23 . The detection model 32C may be measured in advance using the processing machine 20 to be diagnosed and created in advance.

The machining amount model 32D is a model that shows the relationship between the actual wear value of the tool 59 and the cumulative machining actual measurement value. In the present embodiment, an example will be described in which the machining amount model 32D is a database in which measured wear values of the tool 59 and accumulated machining measured values are associated with each other.

FIG. 6B is a schematic diagram showing an example of the data configuration of the machining amount model 32D. The machining amount model 32D associates the tool ID, the wear actual measurement value, and the accumulated machining actual measurement value.

The measured wear values are the same as above. The cumulative machining actual measurement value is the actual measurement value of the cumulative machining amount of the tool 59 identified by the corresponding tool ID and worn from the unworn state to the corresponding wear actual measurement value by machining the object 60. .

That is, the machining amount model 32D is based on the wear value of the tool 59 and is an actual measurement result obtained by actually measuring each of the cumulative value (total value) of the amount of processing when the object 60 is processed. The machining amount model 32D may be created in advance by measuring in advance the wear actual measurement value and the accumulated machining actual measurement value using the processing machine 20 to be diagnosed.

Returning to FIG. 4, in this embodiment, the storage unit 32 stores in advance a notification form management DB 32B, a detection model 32C, and a processing amount model 32D. Further, as described above, the wear threshold management DB 32A is registered and updated by processing of the control unit 30, which will be described later.

Next, the control unit 30 of the diagnostic device 10 will be described.

The control unit 30 controls the diagnostic device 10 . The control unit 30 includes a communication control unit 30A, an acquisition unit 30D, an accumulated machining amount identification unit 30F, a wear value identification unit 30G, a calculation unit 30H, a reception unit 30M, a notification control unit 30L, and a change unit 30P. , a derivation unit 30T, and a determination unit 30W. The communication controller 30A includes a transmitter 30B and a receiver 30C. The acquisition unit 30D includes a detection information acquisition unit 30E, a context information acquisition unit 30Q, and a tool specification information acquisition unit 30S.

Communication control unit 30A, transmission unit 30B, reception unit 30C, acquisition unit 30D, detection information acquisition unit 30E, cumulative machining amount identification unit 30F, wear value identification unit 30G, calculation unit 30H, first calculation unit 30I, second Some or all of the calculation unit 30J, the third calculation unit 30K, the notification control unit 30L, the reception unit 30M, the change unit 30P, the context information acquisition unit 30Q, the tool specification information acquisition unit 30S, the derivation unit 30T, and the determination unit 30W may be implemented by causing a processing device such as a CPU to execute a program (i.e., software), may be implemented by hardware such as an IC (Integrated Circuit), or may be implemented in combination. good too.

The communication control unit 30A controls communication with external devices such as the processing machine 20 . The communication controller 30A includes a transmitter 30B and a receiver 30C.

The transmitter 30B transmits various requests and signals to the processing machine 20 . For example, the transmission unit 30B transmits a context information acquisition request to the processing machine 20 . The receiver 30C acquires various information and signals from the processing machine 20 . In this embodiment, the receiving unit 30C receives detection information and context information from the processing machine 20 .

The reception unit 30M receives a user's operation instruction from the operation unit 33. FIG. The receiving unit 30</b>M may receive context information different from the context information acquired from the processing machine 20 . Further, the reception unit 30M may receive from the operation unit 33 part of the information included in the context information that the reception unit 30C receives from the processing machine 20 . For example, the reception unit 30M may receive at least part of the tool specification information from the operation unit 33. The reception unit 30M may also receive at least part of the tool specification information from an external device such as an external server via a communication line.

Next, the acquisition unit 30D will be described. Acquisition unit 30D acquires detection information and specification information. In this embodiment, the acquisition unit 30D acquires tool specification information as specification information.

The acquisition unit 30D includes a detection information acquisition unit 30E, a context information acquisition unit 30Q, and a tool specification information acquisition unit 30S.

The detection information acquisition unit 30E acquires detection information. The detection information acquisition unit 30E acquires detection information from the processing machine 20 via the reception unit 30C.

The context information acquisition unit 30Q acquires context information. The context information acquisition unit 30Q acquires context information from the processing machine 20 via the reception unit 30C. As described above, the context information acquisition unit 30Q may acquire part of the information included in the context information received from the processing machine 20 from the reception unit 30M.

The tool specification information acquisition unit 30S acquires tool specification information. The tool specification information acquisition unit 30S acquires tool specification information by reading the tool specification information included in the context information acquired by the context information acquisition unit 30Q.

Based on the specification information, the derivation unit 30T derives the load level to the main body of the processing machine 20 when the processing by the tool 59 is continued. In the present embodiment, the derivation unit 30T derives the load level to the main body of the processing machine 20 when machining by the tool 59 is continued based on the tool specification information acquired by the tool specification information acquisition unit 30S.

The derivation unit 30T derives a load level indicating the level of load applied to the main body of the processing machine 20 when machining is continued using the tool 59 having the specifications indicated by the tool specification information. Specifically, as described above, when the tool 59 is a drill, the larger the diameter (thicker), the greater the load applied to the main body of the processing machine 20 when machining is continued. Therefore, when the type of the tool 59 indicated by the tool specification information is a drilling tool such as a drill, the derivation unit 30T derives a higher load level as the diameter indicated by the tool specification information is larger (thicker). . Then, the derived load level is associated with the tool specification information and tool type indicated in the tool specification information and registered in the wear threshold management DB 32A.

That is, as shown in FIG. 5A, the derivation unit 30T derives a small load as the load level when the diameter of the drill indicated in the tool specification information is small (less than a predetermined threshold value (φ1)). Further, when the diameter of the drill indicated in the tool specification information is medium (not less than a predetermined threshold value (φ1) and not more than a threshold value (φ2) larger than φ1 (φ1<φ2)), the derivation unit 30T detects the load Derive the load medium as the level. Further, when the diameter of the drill indicated in the tool specification information is large (larger than a predetermined threshold value (φ2)), the derivation unit 30T derives a large load as the load level.

Further, for example, if the tool 59 is a cutting tool such as a cutting tool, the larger the blade width (the thicker the blade width), the greater the load applied to the main body of the processing machine 20 when machining is continued. Therefore, when the type of the tool 59 indicated by the tool specification information is a cutting tool such as a cutting tool, the derivation unit 30T derives a higher load level as the blade width indicated by the tool specification information is larger (thicker). . Then, the derived load level is associated with the tool specification information and tool type indicated in the tool specification information and registered in the wear threshold management DB 32A.

That is, as shown in FIG. 5A, when the blade width of the cutting tool indicated in the tool specification information is narrow (less than a predetermined threshold value (φ1′)), the derivation unit 30T sets the load level to small load. to derive Further, the derivation unit 30T determines that the blade width of the cutting tool indicated in the tool specification information is intermediate (not less than a predetermined threshold value (φ1′) and not more than a threshold value (φ2′) larger than φ1′ (where φ1′<φ2 ')), derive Loading as the load level. Further, when the blade width of the cutting tool indicated in the tool specification information is large (larger than a predetermined threshold value (?2')), the derivation unit 30T derives a large load as the load level.

Note that FIG. 5A shows, as an example, a case where the deriving unit 30T derives three levels of load levels, high load, medium load, and low load. However, the derivation unit 30T may derive load levels of two stages or four stages or more.

Further, the derivation unit 30T may derive a larger load level as the material information of the tool 59 indicated in the tool specification information indicates a harder material.

Then, the derivation unit 30T registers the derived load level in the wear threshold management DB 32A in association with the type of tool and the tool specification information.

Returning to FIG. 4, the description is continued. The determining unit 30W determines a lower wear threshold as the load level increases. That is, every time the deriving unit 30T derives the load level using the tool specification information, the determining unit 30W determines a lower wear threshold as the load level increases as the wear threshold corresponding to the derived load level.

For example, as shown in FIG. 5A, the determining unit 30W determines a lower wear threshold value as the load level increases. In addition, each of L6, L8, and L10 in FIG. 5(A) indicates a wear value. The magnitude relationship between these numerical values is L6<L8<L10.

Therefore, the wear threshold value L corresponding to the heavy load is a smaller value than the medium load and the small load. Further, the wear threshold value L corresponding to the small load is a larger value than the large load and the medium load. Here, as described above, the wear threshold L is a threshold used to determine the timing of changing the notification form.

Therefore, the larger the load level, the smaller the wear of the tool 59, and the notification form is changed. Also, the smaller the load level, the more the tool 59 wears, that is, the more advanced the wear progresses, the more the notification form is changed. The details of changing the notification form will be described later.

The determination unit 30W registers the determined wear threshold L in the wear threshold management DB 32A in association with the tool type, tool specification information, and load level.

Next, the cumulative machining amount specifying unit 30F will be described. The cumulative machining amount specifying unit 30F specifies the cumulative machining amount of the object 60 machined by the tool 59 provided in the processing machine 20 from the context information acquired by the context information acquiring unit 30Q.

As described above, the context information acquired by the context information acquisition section 30Q includes the operating state information of the machine tool 23 and the machining history information. Moreover, as described above, the context information may include, as processing history information, the cumulative amount of processing, or may include information capable of specifying the cumulative amount of processing.

When the machining history information included in the context information indicates the cumulative machining amount (cumulative cutting distance, cumulative cutting time), the cumulative machining amount specifying unit 30F determines the cumulative machining amount (cumulative cutting distance and cumulative cutting time) from the context information. At least one of them) is extracted to specify the cumulative machining amount.

Further, when the processing history information included in the context information is information that can specify the cumulative processing amount, the cumulative processing amount specifying unit 30F may specify the cumulative processing amount from the information. Specifically, context information serves as machining history information, including cutting distance and number of machining times per machining, cutting time and number of machining times per machining, spindle rotation number and number of machining times per machining, It is assumed that at least one of the feed amount per machining and the number of machining times, and the size of the object 60 to be machined and the number of the objects 60 to be machined is included. In this case, the cumulative machining amount specifying unit 30F may specify the cumulative machining amount by calculating the cumulative machining amount from these pieces of information.

Next, the wear value specifying section 30G will be described. The wear value identification unit 30G identifies the wear value of the tool 59 using the detection information acquired by the detection information acquisition unit 30E.

First, the wear value specifying unit 30G reads, from the detection model 32C (see FIG. 6A), actual wear values corresponding to the actual detection values corresponding to the detection information acquired by the detection information acquisition unit 30E. That is, the wear value specifying unit 30G obtains a detected measured value that matches or is most similar to the value indicated by the detection information acquired by the detection information acquisition unit 30E (specifically, the waveform indicated by the sound data or the waveform indicated by the vibration data). are identified from the detection model 32C. Then, the wear value specifying unit 30G reads the wear actual measurement value corresponding to the specified detection actual measurement value from the detection model 32C.

At this time, when the tool ID of the tool 59 is included in the context information acquired by the context information acquiring unit 30Q, the wear value specifying unit 30G determines the tool ID and the detection information acquired by the acquiring unit 30D. The detected actual measurement value and the corresponding actual wear measurement value may be read from the detection model 32C.

Then, the wear value specifying unit 30</b>G may specify the value indicated by the read measured wear value as the wear value of the tool 59 .

Next, the changing section 30P will be described. The changing unit 30P changes the notification form according to the wear value specified by the wear value specifying unit 30G and the tool specification information acquired by the tool specification information acquiring unit 30S. Changing the notification form means changing at least one of the notification contents and the notification method of the notification form that has been notified until then (before the change).

In the present embodiment, when the wear value specified by the wear value specifying unit 30G is less than the wear threshold value L determined by the determining unit 30W, the notification unit 37 of the diagnostic device 10 displays the first A notification is given in a notification form corresponding to the level (normal level). Then, when the wear value specified by the wear value specifying unit 30G is equal to or greater than the wear threshold value L determined by the determining unit 30W, the changing unit 30P changes the notification form according to the load level derived by the deriving unit 30T. .

As shown in FIG. 5A, the wear threshold management DB 32A associates a higher notification importance with a higher load level. This association may be performed by the derivation unit 30T or may be performed by the determination unit 30W.

Therefore, for example, when the load level derived by the derivation unit 30T is “large load” and the wear value specified by the wear value specifying unit 30G is equal to or greater than the corresponding wear threshold value L6, the change unit 30P outputs the highest notification The notification form corresponding to the importance "fourth level" (alarm level) is read from the notification form management DB 32B. Then, the changing unit 30P changes the notification form to a notification form corresponding to the highest notification importance "fourth level" (alarm level) (see FIG. 5B).

Notification control unit 30L controls each of notification unit 37 (display unit 34, lamp 35, speaker 36, transmission unit 30B). That is, the notification control unit 30L performs display control of the display unit 34, light emission control of the lamp 35, sound output control of the speaker 36, and communication control of the transmission unit 30B.

In the present embodiment, when the change unit 30P changes the notification form, the notification control unit 30L controls the notification unit 37 so as to perform notification according to the changed notification form. For example, the notification form before change by the change unit 30P is a notification form corresponding to the notification importance "first level (normal level)" shown in the notification form management DB 32B (see FIG. 5B), and the notification form after change Assume that the notification form corresponds to the notification importance level "third level (warning level 2)".

In this case, the notification control unit 30L sets the notification contents indicated in the notification form corresponding to the notification importance level "third level (warning level 2)" in the notification form management DB 32B (see FIG. 5B). Each of the notification units 37 (the display unit 34, the lamp 35, the speaker 36, and the transmission unit 30B) is controlled so as to notify by the notification method shown in the form.

Therefore, in this case, the notification control unit 30L controls the lamp 35 to flash yellow. In addition, the notification control unit 30L controls the speaker 36 so that a warning sound is output from the speaker 36 at a volume of "weak". The notification control unit 30L also displays the operating state (warning 2), tool information, the number of processed pieces, wear level, wear level transition, and the remaining number of processed pieces (remaining life of the tool 59) on the display unit 34 . The remaining life (remaining number of processes) of the tool 59 may be obtained from the calculation section 30H, which will be described later. The wear level is the length (dimension) or weight of the unworn tool 59 in the machining direction divided into predetermined levels (eg, 10 levels), and indicates at which stage the wear value is. is.

In addition, the notification control unit 30L controls the transmission unit 30B so as to transmit an e-mail indicating that the notification importance level is the warning 2 level to the terminal of the predetermined administrator. In addition, the notification control unit 30L controls the transmission unit 30B so as to output a signal indicating a request to stop the processing machine 20 to the processing machine 20 .

Note that when the wear value specified by the wear value specifying unit 30G is less than the wear threshold value L determined by the determination unit 30W, the notification is made in the form of notification corresponding to the first level (normal level) of the lowest notification importance. ing. In this case, for example, the display unit 34 displays the notification content indicated by the notification form corresponding to the notification importance "first level (normal level)" in the notification form management DB 32B (see FIG. 5B). be. FIG. 7 is a schematic diagram showing an example of a display screen 80 displayed on the display unit 34 when the notification importance level is "first level (normal level)". In this case, the display screen 80 displays information indicating that the operating state of the processing machine 20 is normal, tool information (tool ID, tool name, installation position, etc.) provided in the processing machine 20, wear level, and , the number of remaining processes, etc. are displayed. The wear value may be displayed on the display screen 80 instead of or together with the wear level.

Returning to FIG. 4, the description is continued. Next, the calculation section 30H will be described. The calculation unit 30H calculates the remaining life of the tool 59 based on the cumulative machining amount specified by the cumulative machining amount specifying unit 30F and the wear value specified by the wear value specifying unit 30G. That is, the calculation unit 30H calculates the remaining life of the tool 59 identified by the tool ID included in the context information acquired by the acquisition unit 30D.

The remaining lifespan should just indicate the remaining lifespan that can be processed by the tool 59 . The remaining life is represented by, for example, a remaining machining period that can be machined by the tool 59 or a remaining machining number that the tool 59 can machine.

The calculation unit 30H includes a first calculation unit 30I, a second calculation unit 30J, and a third calculation unit 30K. FIG. 8 is an explanatory diagram of calculation by the calculation unit 30H.

The first calculation unit 30I calculates a cumulative machining amount actual measurement value using the wear value specified by the wear value specifying unit 30G and the machining amount model 32D.

The first calculation unit 30I identifies the measured wear value that matches or is closest to the wear value identified by the wear value identification unit 30G in the machining amount model 32D (see FIG. 6B). Then, the first calculation unit 30I calculates the cumulative machining actual measurement value by reading the cumulative machining actual measurement value corresponding to the specified wear actual measurement value in the machining amount model 32D from the machining amount model 32D.

That is, the first calculation unit 30I specifies the cumulative machining amount actual measurement value A in FIG. 8 using the wear value specified from the detection information (see wear value M in FIG. 8).

When the context information acquired by the context information acquiring section 30Q includes the tool ID of the tool 59, the first computing section 30I stores the tool ID and the wear value specified by the wear value specifying section 30G. It is only necessary to read from the machining amount model 32D the actual wear measurement value that matches or is closest to the wear value and the corresponding cumulative machining actual measurement value.

The second calculation unit 30J divides the cumulative machining amount specified by the cumulative machining amount specifying unit 30F by the cumulative machining amount actual measurement value calculated by the first calculation unit 30I.

For example, assume that the cumulative machining amount specified by the cumulative machining amount specifying unit 30F based on the context information is the cumulative machining amount A' in FIG. In this case, the second calculator 30J divides the cumulative machining amount A' by the cumulative machining amount measured value A (cumulative machining amount A'/cumulative machining amount actually measured value A). That is, the second calculation unit 30J identifies the cumulative machining amount A′ specified from the context information by the cumulative machining amount specifying unit 30F using the wear value specified from the detection information by the wear value specifying unit 30G. Divide by the cumulative machining amount actual measurement value A.

The second calculation unit 30J calculates a theoretical tool life, which is the theoretical life of the tool 59, from the wear value specified by the wear value specifying unit 30G from the detection information. Assuming that the tool life is represented by the cumulative machining amount that can be processed, the second calculation unit 30J specifies the cumulative machining amount C as the theoretical tool life from the cumulative machining amount actual measurement value A in FIG.

For example, the second calculation unit 30J stores the detection model 32C (see FIG. 6A) in advance in the storage unit 32 in association with the theoretical tool life, which is the theoretical life of the tool 59 identified by the tool ID. Remember.

Then, the second calculation unit 30J creates a tool ID that associates an actual wear value that matches the wear value specified from the detection information by the wear value specifying unit 30G and a detected actual measurement value that matches the detection information. The theoretical tool life corresponding to is read from the storage unit 32 . Thereby, the second calculation unit 30J specifies the cumulative machining amount C as the theoretical tool life based on the detection information. That is, the second calculation unit 30J specifies the theoretical tool life (accumulated machining amount C in FIG. 8) based on the detection information.

The second calculation unit 30J may derive the cumulative machining amount C as the theoretical tool life from the machining model 32B (see FIG. 5B). In this case, the second calculation unit 30J first reads the measured wear value corresponding to the tool ID included in the context information in the machining model 32B. Then, the second calculation unit 30J calculates an accumulated machining measured value corresponding to the maximum measured wear value among the read measured wear values (i.e., the measured wear value when all the tools 59 are worn) in the machining model 32B. may be used as the cumulative machining amount C.

Next, the second calculation unit 30J divides the cumulative machining amount A' by the cumulative machining amount actual measurement value A (division result, that is, (cumulative machining amount A'/cumulative machining amount actual measurement value A)), The specified cumulative machining amount C as the theoretical tool life is multiplied ((cumulative machining amount A′/cumulative machining amount actual measurement value A)×accumulating machining amount C). The second calculator 30J calculates the multiplied value obtained by this multiplication as the tool life. That is, the following formula (1) holds.

(Accumulated machining amount A'/Accumulated machining amount measured value A) x Cumulative machining amount C = Cumulative machining amount C' as tool life Equation (1)

In other words, the second calculation unit 30J uses the actual measured cumulative amount of processing A determined based on the detection information and the cumulative amount of processing A' determined based on the context information to determine based on the detection information. The cumulative machining amount C′, which is the actual tool life of the tool 59, is calculated from the cumulative machining amount C, which is the theoretical tool life.

Then, the third calculation unit 30K obtains a subtraction value obtained by subtracting the cumulative machining amount A' specified by the cumulative machining amount specifying unit 30F from the tool life (cumulative machining amount C') calculated by the second calculating unit 30J. , is calculated as the remaining life of the tool 59 . In the example shown in FIG. 8, the third computing unit 30K computes the remaining life B by subtracting the cumulative machining amount A' from the cumulative machining amount C'.

The notification control unit 30L may further display the remaining life on the display unit 34 when the calculation unit 30H calculates the remaining life of the tool 59 .

Next, the procedure of information processing executed by the diagnostic device 10 will be described. FIG. 9 is a flow chart showing an example of an information processing procedure executed by the diagnostic device 10 .

First, the context information acquisition unit 30Q acquires context information (step S100). Next, the tool specification information acquisition unit 30S acquires tool specification information from the context information acquired in step S100 (step S102).

Next, the detection information acquisition unit 30E acquires detection information from the processing machine 20 (step S104). Next, the cumulative processing amount specifying unit 30F specifies the cumulative processing amount from the context information (step S106). Next, the wear value identifying unit 30G identifies the wear value of the tool 59 from the detection information acquired in step S104 (step S108).

Next, the computing unit 30H computes the remaining life of the tool 59 (for example, the number of remaining processes) from the cumulative machining amount specified in step S106 and the wear value specified in step S108 (step S110).

Next, the derivation unit 30T derives the load level from the tool specification information acquired in step S102 (step S112). Next, the determination unit 30W determines the wear threshold value L from the load level derived in step S112 (step S114). As described above, the determination unit 30W determines a lower wear threshold value L as the load level is higher.

Next, the changing unit 30P determines whether or not the wear value specified from the detection information in step S108 is equal to or greater than the wear threshold value L determined in step S114 (step S116). If the wear value is equal to or greater than the wear threshold value L (step S116: Yes), the process proceeds to step S118.

In step S118, the changing unit 30P changes the notification form according to the wear value specified in step S108 and the tool specification information acquired in step S102 (step S118). That is, if the determination in step S116 is affirmative (step S116: Yes), the change unit 30P changes the notification form so that the higher the load level derived in step S112 is, the higher the notification importance level corresponds to the notification form. change (step S118).

The notification control unit 30L controls the notification unit 37 (display unit 34, lamp 35, speaker 36, transmitting unit 30B) (step S120). Then, the process proceeds to step S124.

Specifically, the notification control unit 30L reads the notification importance corresponding to the derived load level in the wear threshold management DB 32A (see FIG. 5A). Therefore, the notification control unit 30L reads higher notification importance as the load level increases. Then, the notification control unit 30L stores the read notification importance (for example, the second level (warning 1 level), the third level (warning 2 level), or Specify the notification form corresponding to the fourth level (alarm level). Further, the notification control unit 30L controls the notification unit 37 (the display unit 34, the lamp 35, the speaker 36, the transmission unit 30B) so as to notify the notification content indicated by the specified notification form by the notification method indicated by the notification form. ).

For this reason, the notification unit 37 (the display unit 34, the lamp 35, the speaker 36, the transmission unit 30B) displays the tool specification information of the tool 59 and the notification timing and notification form according to the wear value of the tool 59. 37 will notify you.

On the other hand, if a negative determination is made in step S116 (step S116: No), the process proceeds to step S122. In step S122, the notification control unit 30L sets the notification content indicated in the notification form corresponding to the first level (normal level) in the notification form management DB 32B (see FIG. 5B) to the notification method indicated in the notification form. , the notification unit 37 (display unit 34, lamp 35, speaker 36, transmission unit 30B) is controlled. Then, the process proceeds to step S124.

At step S124, the control unit 30 determines whether or not to end the process (step S124). For example, the control unit 30 makes the determination in step S124 by determining whether or not the reception unit 30M has received a signal indicating the end of the process in response to an operation instruction of the operation unit 33 by the user.

If a negative determination is made in step S124 (step S124: No), the process returns to step S100. On the other hand, if an affirmative determination is made in step S124 (step S124: Yes), this routine ends.

As described above, the diagnostic device 10 of the present embodiment includes an acquisition section 30D, a wear value identification section 30G (first identification section), and a change section 30P. The acquisition unit 30D acquires detection information of physical quantities that change according to the operation status of the processing machine 20 (target device) that processes the target object 60, and tool information that indicates the specifications of the tool 59 provided in the processing machine 20 (target device). Acquire specification information including specification information. The wear value specifying unit 30G (first specifying unit) specifies the wear value of the tool 59 based on the detection information. The changing unit 30P changes the form of notification to the outside according to the wear value and the tool specification information.

As described above, in the diagnostic device 10 of the present embodiment, the wear value of the tool 59 specified based on the detection information of the physical quantity of the processing machine 20 and the tool specification information of the tool 59 are notified to the outside. change form.

Therefore, in the diagnostic device 10 of the present embodiment, it is possible to make a notification according to the state of the tool 59 .

Further, in the diagnosis device 10 of the present embodiment, the derivation unit 30T determines the main body of the processing machine 20 (target device) when machining by the tool 59 is continued based on the specification information (tool specification information in the present embodiment). Derive the load level to The determining unit 30W determines a lower wear threshold as the load level increases. The changing unit 30P changes the notification form according to the load level when the identified wear value is equal to or greater than the determined wear threshold value L.

Therefore, in the diagnostic device 10 of the present embodiment, the larger the load level on the main body of the processing machine 20 when the machining by the tool 59 is continued, which is derived by the derivation unit 30T based on the tool specification information of the tool 59, , the notification form is changed at a stage where the wear of the tool 59 is smaller. Further, as the load level becomes smaller, the notification form is changed until the tool 59 wears more, that is, at a stage where the wear progresses further.

Therefore, in the diagnostic device 10 of the present embodiment, in addition to the above effects, the timing of changing the notification form can be adjusted according to the specifications of the tool 59 .

Further, the change unit 30P changes the notification form to a higher notification importance level as the load level derived by the derivation unit 30T increases.

The notification form includes notification content and notification method. The notification content includes at least one of lighting method, lighting color, volume, display content, and communication content, and the notification method is at least one of display, light emission, sound output, and communication to an external device. including.

The notification control unit 30L controls the notification unit 37 (the display unit 34, the lamp 35, the speaker 36, and the transmission unit 30B) so as to notify the notification content indicated in the changed notification form by the notification method indicated in the notification form. do.

The receiving unit 30C receives context information regarding the operating state of the processing machine 20 (target device). The cumulative machining amount specifying unit 30F (second specifying unit) specifies the cumulative machining amount of the object 60 machined by the tool 59 provided in the processing machine 20 (target device) from the context information. The computing unit 30H computes the remaining life of the tool 59 based on the cumulative machining amount and the wear value. In this case, the notification control section 30L may further notify the notification section 37 of the remaining life of the tool 59 .

(Second embodiment)
In this embodiment, as the specification information, tool specification information indicating the specification of the tool 59 and object specification information indicating the specification of the object 60 to be machined are used.

FIG. 10 is a block diagram showing an example of the functional configuration of the information processing system 1000A of this embodiment. The information processing system 1000A includes a processing machine 20 and a diagnostic device 10A. The processing machine 20 and the diagnostic device 10A are connected so as to be able to exchange data and signals. Note that the processing machine 20 is the same as in the first embodiment. Moreover, the hardware configuration of the diagnostic device 10A is the configuration shown in FIG.

A functional configuration of the diagnostic device 10A will be described. The diagnostic device 10</b>A includes a control section 31 , a storage section 38 , an operation section 33 , a display section 34 , a lamp 35 and a speaker 36 . The control unit 31, the storage unit 38, the operation unit 33, the display unit 34, the lamp 35, and the speaker 36 are connected so as to be able to exchange data and signals. A display unit 34, an operation unit 33, a lamp 35, and a speaker 36 are the same as those in the first embodiment.

The storage unit 38 stores various information. The storage unit 33 is realized by the HDD 65 in FIG. 3, for example. The storage unit 33 stores a wear threshold management DB 32A, a notification form management DB 32B, a detection model 32C, a processing amount model 32D, and a wear threshold management DB 32E. The wear threshold management DB 32A, the notification form management DB 32B, the detection model 32C, and the processing amount model 32D are the same as in the first embodiment.

FIG. 11 is a schematic diagram showing an example of the data configuration of the wear threshold management DB 32E. The wear threshold management DB 32E is a database for managing information on the wear threshold of the tool 59. FIG. Note that the data format of the wear threshold management DB 32E is not limited to a database.

The wear threshold management DB 32E associates the type of target object, the target object specification information, the load level on the main body of the processing machine 20 due to continued processing, the wear threshold value L, and the notification importance level. The type of target object is information indicating the type of target object 60 being processed by the processing machine 20 . The target object specification information is information indicating the specification of the target object 60 being processed by the processing machine 20 . In the present embodiment, the object specification information includes information from which the control unit 30 can derive the load level of the processing machine 20 when the tool 59 continues machining the object 60. All you have to do is Specifically, in the present embodiment, the object specification information includes identification information of the object 60 (hereinafter sometimes referred to as object ID), name of the object 60, material information, hardness information indicating the hardness of the object 60, and the like.

In the example shown in FIG. 11, the wear threshold management DB 32E stores information indicating the hardness of the target object 60 as the target object specification information.

Since the load level to the main body of the processing machine 20 due to continuation of machining, the wear threshold value L, and the notification importance level in the wear threshold management DB 32E have been described in the first embodiment, their description will be omitted here.

Returning to FIG. 10, next, the controller 31 of the diagnostic device 10 will be described.

The control unit 31 controls the diagnostic device 10A. The control unit 31 includes a communication control unit 30A, an acquisition unit 31D, an accumulated machining amount identification unit 30F, a wear value identification unit 30G, a calculation unit 30H, a reception unit 30M, a notification control unit 30L, and a change unit 30P. , a derivation unit 31T, and a determination unit 31W. The communication controller 30A includes a transmitter 30B and a receiver 30C. The acquisition unit 31D includes a detection information acquisition unit 30E, a context information acquisition unit 30Q, a tool specification information acquisition unit 30S, and a target object specification information acquisition unit 30Y.

That is, the control unit 31 of the present embodiment includes an acquisition unit 31D, a derivation unit 31T, and a determination unit 31W instead of the acquisition unit 30D, the derivation unit 30T, and the determination unit 30W. It has the same configuration as the control unit 30 . In addition to the detection information acquisition unit 30E, the context information acquisition unit 30Q, and the tool specification information acquisition unit 30S, the acquisition unit 31D further includes a target object specification information acquisition unit 30Y. is the same as the acquisition unit 30D of .

Note that, in the present embodiment, the context information acquisition unit 30Q acquires context information including operating state information and machining history information of the machine tool 23, as in the first embodiment. In the present embodiment, the operating state information included in the context information includes tool specification information indicating the specification of the tool 59 used for machining, identification information of the drive unit 24 that drives the tool 59, rotation speed of the drive unit 24 , the rotational speed of the drive unit 24, the load applied to the drive unit 24, and the size of the drive unit 24, as well as object specification information indicating the specifications of the object 60 to be processed.

Note that the reception unit 30M may receive, from the operation unit 33, part of the information included in the context information that the reception unit 30C receives from the processing machine 20, as in the first embodiment. For example, the reception unit 30M may receive at least part of the tool specification information and at least part of the target object specification information from the operation unit 33. Moreover, the reception unit 30M may receive at least part of the tool specification information and at least part of the target object specification information from an external device such as an external server via a communication line.

The target object specification information acquisition unit 30Y acquires target object specification information. The target object specification information acquisition unit 30Y acquires target object specification information by reading target object specification information included in the context information acquired by the context information acquisition unit 30Q.

Based on the specification information, the derivation unit 31T derives the load level to the main body of the processing machine 20 when the processing by the tool 59 is continued. In the present embodiment, the derivation unit 30T uses the tool 59 based on at least one of the tool specification information acquired by the tool specification information acquisition unit 30S and the target object specification information acquired by the target object specification information acquisition unit 30Y. A load level to the main body of the processing machine 20 when the processing of the object 60 is continued is derived.

The method by which the derivation unit 31T derives the load level based on the tool specification information is the same as that of the derivation unit 30T of the first embodiment.

A case where the derivation unit 31T derives the load level based on the target object specification information will be described. The derivation unit 31T derives a load level indicating the level of load applied to the main body of the processing machine 20 when the processing of the target object 60 having the specifications indicated by the target object specification information is continued.

Here, the higher the hardness (harder) of the object 60 to be processed, the greater the load applied to the main body of the processing machine 20 when the object 60 is continued to be processed. For this reason, the deriving unit 31T derives a higher load level as the hardness indicated in the target object specification information is higher (or as the hardness of the material is higher). Then, the derivation unit 31T associates the derived load level with the target object specification information and the target object type indicated in the target object specification information, and registers them in the wear threshold management DB 32E.

That is, as shown in FIG. 11, the derivation unit 31T derives a small load as the load level when the hardness of the target object 60 indicated in the target object specification information is low (soft) (less than a predetermined threshold value (K1)). do. Further, when the hardness of the target object 60 indicated in the target object specification information is intermediate (more than or equal to a predetermined threshold value (K1) and less than or equal to a threshold value (K2) (K1<K2)), the derivation unit 31T detects the load Derive the load medium as the level. Further, when the hardness of the object 60 indicated in the object specification information is high (hard) (larger than a predetermined threshold value (K2)), the derivation unit 31T derives a large load as the load level.

Note that FIG. 11 shows, as an example, a case where the deriving unit 31T derives three levels of load levels, high load, medium load, and low load. However, the derivation unit 31T may derive load levels of two stages or four stages or more.

Further, the derivation unit 31T may derive a higher load level as the material information of the target object 60 indicated in the target object specification information indicates a harder material.

Then, the derivation unit 31T registers the derived load level in the wear threshold management DB 32E in association with the type of object and the target part specification information.

Returning to FIG. 10, the description continues. The determining unit 31W determines a lower wear threshold as the load level is higher.

That is, when the deriving unit 31T derives the load level using the tool specification information, the determining unit 31W determines a lower wear threshold as the load level is higher as the wear threshold corresponding to the derived load level.

Further, when the derivation unit 31T derives the load level using the target object specification information, the determining unit 31W determines a lower wear threshold as the load level is higher as the wear threshold corresponding to the derived load level.

For example, as shown in FIG. 11, the determination unit 31W determines a lower wear threshold as the load level increases. In addition, in FIG. 11, L6, L8, and L10 each indicate a wear value. The magnitude relationship between these numerical values is L6<L8<L10. Therefore, the wear threshold value L corresponding to the heavy load is a smaller value than the medium load and the small load. Further, the wear threshold value L corresponding to the small load is a larger value than the large load and the medium load.

Moreover, the derivation|leading-out part 31T may derive both the load level using tool specification information, and the load level using target object specification information. In this case, the derivation unit 31T derives the higher load level as the load level used in the determination unit 31W. Then, the determining unit 31W determines the higher load level of the load level using the tool specification information and the load level using the target object specification information derived by the deriving unit 31T. A low wear threshold should be determined.

Here, the wear threshold L is a threshold used to determine the timing of changing the notification form.

Therefore, the greater the level of load on the main body of the processing machine 20 by at least one of the tool 59 and the object 60, the smaller the wear of the tool 59, and the notification form is changed. In addition, the smaller the load level of the main body of the processing machine 20 by at least one of the tool 59 and the object 60, the greater the wear of the tool 59, that is, the more advanced the wear progresses, the more the notification form is changed. becomes.

The determining unit 31W registers the determined wear threshold value L in the wear threshold management DB 32A or the wear threshold management DB 32E.

Next, the procedure of information processing executed by the diagnostic device 10A of the present embodiment will be described. FIG. 12 is a flow chart showing an example of an information processing procedure executed by the diagnostic device 10A.

First, the context information acquisition unit 30Q acquires context information (step S200). Next, the tool specification information acquisition unit 30S acquires tool specification information from the context information acquired in step S200 (step S202). Next, the object specification information acquisition unit 30Y acquires object specification information from the context information acquired in step S200 (step S204).

Next, the detection information acquisition unit 30E acquires detection information from the processing machine 20 (step S206). Next, the cumulative processing amount specifying unit 30F specifies the cumulative processing amount from the context information (step S208). Next, the wear value identifying unit 30G identifies the wear value of the tool 59 from the detection information acquired in step S206 (step S210).

Next, the calculation unit 30H calculates the remaining life (for example, the number of remaining processes) of the tool 59 from the cumulative machining amount specified in step S208 and the wear value specified in step S210 (step S212).

Next, the derivation unit 31T derives the load level from at least one of the tool specification information acquired in step S202 and the object specification information acquired in step S204 (step S214).

Note that when both the tool specification information and the object specification information are acquired by the processing of steps S202 and S204, the derivation unit 31T uses the tool specification information and the object specification information to determine the load level. It should be derived. Further, when the derivation unit 31T acquires only the tool specification information through the processing of steps S202 and S204, the load level may be derived using the tool specification information. Further, when the derivation unit 31T acquires only the target object specification information through the processing of steps S202 and S204, the load level may be derived using the target object specification information.

Setting information indicating which of the tool specification information and the target object specification information is to be used for deriving the load level may be stored in advance in the derivation unit 31T. This setting information may be changeable by a user's operation instruction of the operation unit 33 or the like.

Then, the derivation unit 31T may derive the load level using at least one of the tool specification information and the object specification information used for derivation, which are indicated in the setting information.

Next, the determination unit 31W determines the wear threshold value L from the load level derived in step S214 (step S216). As described above, the determining unit 31W determines a lower wear threshold value L as the load level is higher.

Next, the changing unit 30P determines whether or not the wear value specified from the detection information in step S210 is equal to or greater than the wear threshold value L determined in step S216 (step S218). If the wear value is equal to or greater than the wear threshold value L (step S218: Yes), the process proceeds to step S220.

In step S220, the changing unit 30P changes the notification form according to the wear value specified in step S210 and the specification information (at least one of the tool specification information acquired in step S202 and the target object specification information acquired in step S204). change (step S220). That is, if the determination in step S218 is affirmative (step S218: Yes), the change unit 30P changes the notification form so that the higher the load level derived in step S214 is, the higher the notification importance level corresponds to the notification form. change (step S220).

The notification control unit 30L controls the notification unit 37 (display unit 34, lamp 35, speaker 36, transmitting unit 30B) (step S222). Then, the process proceeds to step S226.

Specifically, the notification control unit 30L determines the specifications used for deriving the final load level in step S214 in the wear threshold management DB 32A (see FIG. 5A) and the wear threshold management DB 32E (see FIG. 11). Read the notification importance corresponding to the derived load level in the information (tool specification information or object specification information) database (wear threshold management DB 32A or wear threshold management DB 32E). Therefore, the notification control unit 30L reads higher notification importance as the load level increases. Then, the notification control unit 30L stores the read notification importance (for example, the second level (warning 1 level), the third level (warning 2 level), or Specify the notification form corresponding to the fourth level (alarm level). Further, the notification control unit 30L controls the notification unit 37 (the display unit 34, the lamp 35, the speaker 36, the transmission unit 30B) so as to notify the notification content indicated by the specified notification form by the notification method indicated by the notification form. ).

Therefore, the notification unit 37 (the display unit 34, the lamp 35, the speaker 36, and the transmission unit 30B) displays the tool specification information of the tool 59, the object specification information of the object 60, and the wear value of the tool 59. Notification is made from the notification unit 37 in accordance with the notification timing and notification form.

On the other hand, if a negative determination is made in step S218 (step S218: No), the process proceeds to step S224. In step S224, the notification control unit 30L sets the notification content indicated in the notification form corresponding to the first level (normal level) in the notification form management DB 32B (see FIG. 5B) to the notification method indicated in the notification form. , the notification unit 37 (display unit 34, lamp 35, speaker 36, transmission unit 30B) is controlled. Then, the process proceeds to step S226.

At step S226, the control unit 31 determines whether or not to end the process (step S226). For example, the control unit 31 makes the determination in step S226 by determining whether or not the reception unit 30M has received a signal indicating the end of the process in response to an operation instruction of the operation unit 33 by the user.

If a negative determination is made in step S226 (step S226: No), the process returns to step S200. On the other hand, if an affirmative determination is made in step S226 (step S226: Yes), this routine ends.

As described above, in the diagnostic device 10A of the present embodiment, the derivation unit 31T derives the load level to the main body of the target device (processing machine 20) when the processing by the tool 59 is continued based on the specification information. do. The determining unit 31W determines a lower wear threshold as the load level increases. Then, when the identified wear value is equal to or greater than the determined wear threshold, the changing unit 30P changes the notification form according to the load level.

Therefore, in the diagnostic device 10A of the present embodiment, in addition to the effects of the diagnostic device 10 of the first embodiment, it is possible to perform notification according to the state of the tool 59 at accurate timing.

It should be noted that the programs executed by the diagnostic device 10 and the diagnostic device 10A of the above-described embodiments are provided by being incorporated in a ROM or the like in advance.

The programs executed by the diagnostic device 10 and the diagnostic device 10A of the above-described embodiment are files in an installable format or an executable format on a CD-ROM, a flexible disk (FD), a CD-R, or a DVD (Digital Versatile Disk). ) or the like and provided as a computer program product.

Furthermore, the programs executed by the diagnostic device 10 and the diagnostic device 10A of the above embodiments may be stored on a computer connected to a network such as the Internet, and provided by being downloaded via the network. good. Further, the programs executed by the diagnostic device 10 and the diagnostic device 10A of the above embodiments may be provided or distributed via a network such as the Internet.

The program executed by the diagnostic device 10 and the diagnostic device 10A of the above-described embodiment has a module configuration including each unit (communication control unit, determination unit, etc.) described above, and the actual hardware is a CPU (processor) reads out the program from the ROM and executes it to load the above sections onto the main storage device and generate the respective sections on the main storage device.

Although the embodiment has been described above, the embodiment is presented as an example and is not intended to limit the scope of the invention. The novel embodiments described above can be implemented in various other forms, and various omissions, replacements, and modifications can be made without departing from the scope of the invention. The above-described embodiments and modifications are included in the scope and gist of the invention, and are included in the scope of the invention described in the claims and equivalents thereof.

10, 10A Diagnostic device 20 Processing machine 30B Transmission unit 30C Reception units 30D, 31D Acquisition unit 30G Wear value identification unit 30L Notification control units 30T, 31T Derivation units 30W, 31W Determination unit 34 Display unit 35 Lamp 36 Speaker 37 Notification unit 1000 Information processing system

Japanese Patent No. 4923409

Claims (7)

At least detection information of a physical quantity that changes according to the operation status of a target device that processes a target object, tool specification information that indicates the specifications of a tool provided in the target device, and object specification information that indicates the specifications of the target object. an acquisition unit that acquires specification information including one;
a first identifying unit that identifies a wear value of the tool based on the detection information and a pre-stored detection model;
a deriving unit for deriving a load level to the target device when machining by the tool is continued based on the specification information;
a determination unit that determines a wear threshold that is lower as the load level is higher;
a notification control unit that notifies when the wear value specified by the first specifying unit is equal to or greater than the determined wear threshold;
An information processing device. 2. The information processing apparatus according to claim 1, wherein said notification includes notification content and notification method. 3. The information processing apparatus according to claim 2, further comprising a notification control unit that controls the notification unit so as to notify the notification content indicated in the changed notification by the notification method indicated in the notification. a receiver that receives context information about the operating state of the target device;
a second identifying unit that identifies, from the context information, an accumulated machining amount of the target object machined by the tool provided in the target device;
a calculation unit that calculates the remaining life of the tool based on the cumulative machining amount specified by the second specifying unit and the wear value specified by the first specifying unit;
The information processing apparatus according to any one of claims 1 to 3, comprising: 5. The information processing apparatus according to any one of claims 1 to 4, further comprising a changing unit that changes a form of notification to the outside according to said wear value and said specification information. At least detection information of a physical quantity that changes according to the operation status of a target device that processes a target object, tool specification information that indicates the specifications of a tool provided in the target device, and object specification information that indicates the specifications of the target object. obtaining specification information including one;
determining a wear value of the tool based on the sensing information and a pre-stored sensing model;
a step of deriving a load level to the target device when machining by the tool is continued based on the specification information;
determining a lower wear threshold for higher load levels;
providing a notification when the identified wear value is greater than or equal to the determined wear threshold;
A method of processing information, comprising: An information processing system comprising an information processing device and a target device,
The information processing device is
At least detection information of a physical quantity that changes according to the operation status of a target device that processes a target object, tool specification information that indicates the specifications of a tool provided in the target device, and object specification information that indicates the specifications of the target object. an acquisition unit that acquires specification information including one;
a first identifying unit that identifies a wear value of the tool based on the detection information and a pre-stored detection model;
a deriving unit for deriving a load level to the target device when machining by the tool is continued based on the specification information;
a determination unit that determines a wear threshold that is lower as the load level is higher;
a notification control unit that notifies when the wear value specified by the first specifying unit is equal to or greater than the determined wear threshold;
with
The target device is
a detection unit that detects the physical quantity;
a transmission unit that transmits the detected physical quantity to the information processing device;
An information processing system comprising:

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