Maintenance system for wire electric discharge machining apparatus, wire electric discharge machining apparatus, and maintenance diagnostic apparatus

Abstract

A maintenance system for a wire electrical discharge machining device is provided with: a management device (5) that manages reference maintenance data indicating a state in which maintenance of a reference component of a factory completed wire electrical discharge machining device is required for each group determined on the basis of attribute information of the factory completed wire electrical discharge machining device; a wire electric discharge machining device (1) that transmits reference data indicating a reference state of the target member and use state data indicating a use state; and a maintenance diagnosis device (6) that receives attribute information for the wire electric discharge machining device (1), selects a group on the basis of the attribute information, calls reference maintenance data for the selected group from the management device (5), and diagnoses that maintenance is necessary when the use state data received from the wire electric discharge machining device (1) reaches the reference maintenance data. As a result, it is possible to accurately determine the time at which maintenance such as component replacement of the wire electric discharge machining device is necessary.

Description

Technical Field

[0001] The invention relates to a maintenance system for a wire electrical discharge machining device, a wire electrical discharge machining device and a maintenance diagnosis device. Background Art

[0002] Wire EDM is a machine tool that can perform high-precision machining with a tolerance of 1 / 100 to 1 / 1000 mm. However, if used for a long time, the travel system parts such as pulleys will wear or eccentricity will cause vibration, which will cause tension fluctuations, requiring maintenance such as parts replacement.

[0003] For example, Patent Document 1 discloses a wire travel system maintenance system for a wire EDM, which measures physical quantities corresponding to wire tension, obtains their average values, fluctuations, and frequency analysis data as analysis results, compares the analysis results with reference values ​​such as when consumables are replaced, and determines whether maintenance is required. Moreover, this structure can accurately determine the replacement period of consumables.

[0004] Patent Document 1: International Publication No. 2010 / 116412 Summary of the invention

[0005] However, Patent Document 1 has the following problem: the maintenance period is determined when the change from the baseline value of the physical quantity of the consumable exceeds the preset amplitude judgment value. Therefore, if the amplitude judgment value is reduced, frequent replacement is required, and if the amplitude judgment value is increased, the processing quality will be reduced before the judgment.

[0006] The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a maintenance system for a wire electrical discharge machining device, a wire electrical discharge machining device, and a maintenance diagnosis device capable of accurately determining a maintenance period.

[0007] The maintenance system of the wire discharge machining device involved in the present invention comprises: a management device, which manages reference maintenance data indicating the status of the reference part of the factory-finished wire discharge machining device that requires maintenance according to a group determined based on the attribute information of the factory-finished wire discharge machining device; a wire discharge machining device, which sends reference data indicating the reference status of the object part and usage status data indicating the usage status; and a maintenance diagnosis device, which receives the attribute information of the wire discharge machining device, selects a group based on the attribute information, calls the reference maintenance data of the selected group from the management device, and diagnoses that maintenance is required when the usage status data received from the wire discharge machining device reaches the reference maintenance data.

[0008] The wire discharge machining device involved in the present invention comprises: a data acquisition unit, which acquires reference data representing a reference state of an object component and usage status data representing a usage status, and sends them to a maintenance diagnosis device; and an attribute information sending unit, which sends the attribute information and diagnoses that maintenance is required when the usage status data reaches the reference maintenance data of a reference component of the factory-finished wire discharge machining device based on the received attribute information.

[0009] The maintenance diagnosis device involved in the present invention receives usage status data representing the usage status of the target part and attribute information of the wire discharge machining device from the wire discharge machining device, selects a group based on the attribute information, calls reference maintenance data of the selected group from the management device, and diagnoses that maintenance is required when the usage status data reaches the reference maintenance data.

[0010] Effects of the Invention

[0011] According to the present invention, it is possible to accurately determine when maintenance such as component replacement of a wire electrical discharge machining device is required. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic configuration diagram showing a maintenance system for the wire electrical discharge machining device according to the first embodiment.

[0013] Figure 2 This is a flowchart of the diagnostic process executed by the maintenance diagnostic unit according to the first embodiment.

[0014] Figure 3 This is a schematic configuration diagram showing a maintenance system for a wire electrical discharge machining device according to the second embodiment.

[0015] Figure 4 This is a schematic configuration diagram showing a maintenance system for a wire electrical discharge machining device according to a third embodiment.

[0016] Figure 5 This is an output example of the improvement method proposing unit according to the third embodiment.

[0017] Figure 6 This is a flowchart showing an example of a procedure for inspecting the wire electrical discharge machining device according to the fourth embodiment.

[0018] Figure 7 This is an example of the diagnosis result transmitted to the user in the inspection procedure of the wire electrical discharge machining device according to the fourth embodiment.

[0019] Figure 8 This is an explanatory diagram for explaining the operation of the wire electrical discharge machining device for inspection according to the fourth embodiment.

[0020] Fig. 9This is a flowchart showing an example of a procedure for inspecting the wire electrical discharge machining device according to the fourth embodiment. DETAILED DESCRIPTION

[0021] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. The same reference numerals in the drawings represent the same or corresponding parts.

[0022] Implementation method 1.

[0023] Figure 1 1 is a schematic diagram showing a maintenance system 10 for a wire electrical discharge machining device. The maintenance system 10 for a wire electrical discharge machining device includes a wire electrical discharge machining device 1, a management device 5, and a maintenance diagnosis device 6. The wire electrical discharge machining device 1 includes a control unit 2 and a wire running unit 3. The wire running unit 3 includes a data acquisition unit 4, which acquires state data by detecting the speed of the wire using an encoder or detecting the load state of the wire using the value of a machining current flowing in the wire.

[0024] When the wire EDM device 1 is installed or when a component is replaced, the wire EDM device 1 is operated, and the status data of the components to be maintained and diagnosed, such as the pulley, is acquired by the data acquisition unit 4 and is used as reference data. When the wire EDM device 1 is used, the status data is acquired from the data acquisition unit 4 and is used as the usage status data.

[0025] The management device 5 is provided on a network, for example, and acquires attribute information, reference base data, and reference maintenance data in association with each other from a shipped wire EDM device that is different from the wire EDM device 1 to be maintained. The shipped wire EDM device (not shown) is an EDM device having a shipped wire travel system, and has the same structure as the wire EDM device 1. Devices that have not been shipped but for which status data is collected for management may also be included here and are referred to as shipped wire EDM devices.

[0026] The factory-finished wire discharge machining device is similar to the wire discharge machining device 1, for example, status data is obtained through an encoder, etc., the status data during installation, etc. is recorded as reference benchmark data, and the status data of the factory-finished wire discharge machining device in the past when maintenance was required is recorded as reference maintenance data, and these data are sent according to the request of the management device 5.

[0027] Here, for example, in the online travel system, components such as pulleys that need to be replaced become reference components, the encoder data obtained when the wire discharge machining device is installed after leaving the factory is the reference benchmark data, and the encoder data obtained when the wire discharge machining device needed maintenance in the past after leaving the factory is the reference maintenance data.

[0028] The attribute information of the factory-finished wire EDM device is, for example, information indicating the model, years of operation, region, etc. For example, for a model with a long wire conveying path, the automatic wire connection action time becomes longer. For a model with a long full stroke distance, the full stroke movement time becomes longer. For a model with a large processing tank size, the liquid filling time becomes longer. For a model with a large body weight, there is a tendency for the load to increase during axis movement and the current value of the motor to increase. In addition, for a wire EDM device with a long number of years of operation, there is a tendency for consumable parts to be easily consumed. Moreover, when the wire EDM device is installed in an area with many earthquakes, for example, there is a tendency for the grounding surface of the wire EDM device to be tilted, and there is a tendency for consumable parts to be easily consumed.

[0029] Therefore, if the status data is managed by group based on these attribute information, the maintenance period can be estimated with higher accuracy. The management device 5 manages the status data by group, for example, by assigning groups such as group A1, group A2, group A3 based on the model as attribute information, group B1, group B2, group B3 based on the number of years of operation, and group C1, group C2, group C3 based on the region.

[0030] When there is one factory-finished wire EDM device, there may be one group. That is, the management device 5 manages the reference base data and reference maintenance data associated with the attribute information by group for each attribute information. When there are multiple factory-finished wire EDM devices with the same attribute information, the reference base data and reference maintenance data may be statistically processed by average value or the like, or the most appropriate reference base data and reference maintenance data may be selected from the conditions common to the wire EDM device 1 to be maintained. It is also possible to use the reference base data of the target component instead of the reference base data.

[0031] That is, the management device 5 determines a group based on the attribute information of the shipped wire electric discharge machining device associated with the reference maintenance data indicating that the reference component of the shipped wire electric discharge machining device needs maintenance, and manages the data for each group.

[0032] The maintenance diagnosis device 6 includes: a maintenance diagnosis unit 7 that diagnoses the maintenance period of the target component of the wire travel unit 3; and an output unit 8 that outputs the diagnosis result of the maintenance diagnosis unit 7. The maintenance diagnosis unit 7 obtains the attribute information of the wire discharge machining device 1 from the attribute information sending unit 21 provided in the control unit 2 of the wire discharge machining device 1, for example. In addition, the maintenance diagnosis unit 7 obtains the status data of the wire travel unit 3 from the data acquisition unit 4 of the wire discharge machining device 1. The maintenance diagnosis unit 7 obtains the reference maintenance data associated with the attribute information that is the same as or similar to the acquired attribute information from the management device 5. For example, the maintenance diagnosis unit 7 diagnoses that the maintenance period of the wire travel unit 3 is reached by the use status data sent from the wire discharge machining device 1.

[0033] That is, the maintenance diagnosis device 6 receives the attribute information of the wire discharge machining device 1, selects a group of the management device 5 based on the attribute information, calls the reference maintenance data of the selected group from the management device 5, and diagnoses that maintenance is required when the usage status data received from the wire discharge machining device 1 reaches the reference maintenance data.

[0034] The maintenance diagnosis device 6 may be located in a maintenance company that performs maintenance work, or may be installed adjacent to the wire discharge machining device 1. In addition, the wire discharge machining device 1 may have this function. That is, the maintenance diagnosis personnel may use it for diagnosis, and the user of the wire discharge machining device 1 may also use it for diagnosis. The management device 5 and the maintenance diagnosis device 6 may be installed in a place different from the wire discharge machining device 1.

[0035] Figure 2 Flowchart showing the diagnostic processing performed by the maintenance diagnosis unit 7. First, the maintenance diagnosis unit 7 operates the wire discharge machining device 1 to obtain reference data, for example, when the wire discharge machining device 1 is installed (step S20). Next, the attribute information of the wire discharge machining device 1 is obtained from the attribute information sending unit 21 (step S21). Next, the maintenance diagnosis unit 7 determines whether to perform a diagnosis based on the information input to the maintenance diagnosis unit 7 (step S22). When the maintenance diagnosis personnel desires a diagnosis, the wire discharge machining device 1 may be operated to cause the maintenance diagnosis unit 7 to start the diagnosis, or the diagnosis may be performed all the time after installation.

[0036] If the diagnosis is not necessary in step S22, the process returns to step S22 (step S22 No).

[0037] If diagnosis is required in step S22, the maintenance diagnosis unit 7 obtains the usage status data from the data acquisition unit 4 (step S23). Next, the maintenance diagnosis unit 7 selects one of the groups of the management device 5 based on the acquired attribute information (step S24). Next, the maintenance diagnosis unit 7 obtains the reference maintenance data of the selected group (step S25). The reference maintenance data is different for each attribute information.

[0038] The maintenance diagnosis unit 7 determines whether the usage status data reaches the reference maintenance data obtained (step S26). If so, it diagnoses that maintenance is required and outputs the result to the output unit (step S27). On the other hand, if the usage status data does not reach the reference maintenance data (step S26 No), it returns to step S23.

[0039] The order and timing of obtaining the reference data, attribute information, and usage status data are not limited to Figure 2 For example, the reference data and the usage status data may be obtained in step S20.

[0040] As described above, according to the present embodiment, maintenance diagnosis is performed based on the attribute information of the wire discharge machining device 1 using reference maintenance data of a factory-finished wire machining device with the same attribute information that requires the same maintenance. Therefore, maintenance will not be performed more frequently than necessary, the machining quality will not be reduced due to exceeding the maintenance period, and an appropriate maintenance period can be found, thereby enabling high-precision maintenance diagnosis.

[0041] In step S25, if there are a plurality of reference maintenance data for each attribute information, the reference maintenance data may be obtained from the same attribute information group. Figure 2 In this way, the reference maintenance data having characteristics closer to the wire discharge machining device 1 to be diagnosed among the same attribute information can be used as the determination value, thereby improving the accuracy of maintenance diagnosis.

[0042] In addition, in the present embodiment, the components constituting the line travel section 3 such as the pulley are set as the target components, but other components can also be set as the target components. In this case, the data acquisition unit 4 can be set at a position where the status data of the target component can be acquired. Similarly, the accuracy of the maintenance diagnosis of the target component can be improved.

[0043] Implementation method 2.

[0044] Figure 3 1 is a schematic diagram showing a maintenance system for a wire electrical discharge machining device according to Embodiment 2. Description of the same parts as those of Embodiment 1 will be omitted.

[0045] based on Figure 3 , a maintenance system for a wire electrical discharge machining device according to Embodiment 2 is described. In Embodiment 1, an example is shown in which the maintenance diagnosis unit 7 acquires the status data acquired from the data acquisition unit 4 of the wire electrical discharge machining device 1, but in Embodiment 2, the difference is that the control unit 2 in the wire electrical discharge machining device 1 has the analysis unit 22 and the storage unit 23, and the status data analyzed by the analysis unit 22 is used as the reference data or the use status data. Other points are the same as in Embodiment 1.

[0046] In the present embodiment, the status data acquired by the data acquisition unit 4 is analyzed by, for example, the analysis unit 22 in the control unit 2, and the analyzed data is sent to the maintenance diagnosis unit 7 as the usage status data. With the above-mentioned configuration, even when the status data acquired by the data acquisition unit 4 cannot be used directly, the diagnosis in the maintenance diagnosis unit 7 can be performed. The analysis unit 22 can be provided in the maintenance diagnosis device 6. If the analysis unit 22 is provided in the in-line electrical discharge machining device 1, it is possible to prevent the processing load of the maintenance diagnosis device 6 from increasing, and to efficiently perform the diagnosis.

[0047] If described in further detail, in the wire electric discharge machining device 1, the state data acquired by the data acquisition unit 4 of the wire running unit 3 is stored in the storage unit 23. This is particularly effective when the state data acquired by the data acquisition unit 4 cannot be directly used by the maintenance diagnosis unit 7. When the wire electric discharge machining device 1 is installed, the wire electric discharge machining device 1 is operated, and the state data acquired by the data acquisition unit 4 is stored in the storage unit 23, and the state data stored in the storage unit 23 is analyzed by the analysis unit 22 to set as reference data. In addition, similarly, when in use, the state data acquired by the data acquisition unit 4 is stored in the storage unit, and the state data stored in the storage unit 23 is analyzed by the analysis unit 22 to set as use state data.

[0048] The analysis unit 22 obtains a plurality of state data stored in the storage unit 23, and calculates an average value, for example, to set it as reference data or use state data. For example, depending on the model, when different physical quantities are obtained as state data, a conversion process may be performed to unify the physical quantities. For example, a voltage value may be converted into a current value for use.

[0049] The status data analyzed by the analyzing unit 22 of the control unit 2 is sent to the maintenance diagnostic device 6 as reference data or usage status data.

[0050] The maximum value or the minimum value of the status data may be calculated and used as the reference data or the status data.

[0051] The maintenance diagnosis unit 7 acquires the attribute information and the use status data from, for example, the attribute information transmission unit 21 of the control unit 2. The processing procedure of the maintenance diagnosis unit 7 is the same as that of the first embodiment.

[0052] As described above, according to this embodiment, the reference maintenance data of the factory-finished wire machining device having the same attribute information is used for maintenance diagnosis in the same manner as in the first embodiment, so that high-precision maintenance diagnosis can be performed. In addition, the analysis unit 22 in the wire discharge machining device 1 performs statistical processing such as average value calculation and conversion to expected data, so that fluctuations in the state data can be reduced. In particular, when pre-processing is required, the increase in the processing load of the maintenance diagnosis device 6 can be suppressed.

[0053] Implementation method 3.

[0054] In the third embodiment, a maintenance system for a wire electrical discharge machining device is described which presents precautions and improvement plans regarding the method of using the wire electrical discharge machining device 1 based on alarm data of the wire electrical discharge machining device 1 in addition to maintenance diagnosis based on usage status data.

[0055] Figure 4 FIG. 2 is a schematic diagram showing a maintenance system for a wire electrical discharge machining device according to a third embodiment. Figure 1 The maintenance system of the wire electrical discharge machining device according to the first embodiment shown is different in that it includes an alarm data acquisition unit 24, an improvement method analysis unit 25, and an improvement method proposal unit 26. The rest is the same as the first embodiment.

[0056] The wire electrical discharge machining device 1 includes, for example, an alarm data acquisition unit 24 in the control unit 2 , which acquires alarm data for alerting the user, such as contact of the suction nozzle with the workpiece.

[0057] The improvement method analysis unit 25 analyzes the improvement method related to the method of using the wire electrical discharge machining device 1 based on the alarm data obtained from the alarm data acquisition unit 24. The analysis of the improvement method for the alarm can be performed, for example, from a group having the same attribute information accumulated from the factory-finished wire electrical discharge machining device. For example, when reference data that the number of alarms can be reduced by switching to a low-speed mode near a workpiece can be obtained, it can be used as an improvement method.

[0058] The improvement method analyzing unit 25 sends the improvement method extracted for the alarm data to the improvement method proposing unit 26. The improvement method proposing unit 26 outputs the acquired improvement method. Figure 5 This is an output example of the improvement method proposing unit 26 according to Embodiment 3. As a diagnosis result report, "Nozzle contact alarms have occurred ○○ times since the last inspection. Alarms can be reduced by switching to a low speed mode near a workpiece." is displayed.

[0059] As described above, according to this embodiment, maintenance diagnosis is performed using reference maintenance data of a factory-finished wire machining device having the same attribute information as in embodiments 1 and 2, thereby enabling high-precision maintenance diagnosis and enabling suggestions to be made to the user regarding improvement methods related to the method of using the wire discharge machining device 1 based on the alarm data of the wire discharge machining device 1.

[0060] In the present embodiment, the alarm data acquired for analyzing the improvement method by the improvement method analyzing unit 25 may be all or part of the alarm data acquired by the alarm data acquiring unit 24 .

[0061] Implementation method 4.

[0062] In embodiments 1 to 3, an example is described in which a user obtains status data when using an electrical discharge machining device 1, and sends this status data as usage status data to a maintenance diagnostic device 6 to perform maintenance diagnosis. However, in embodiment 4, an example is described in which a maintenance diagnostic personnel who performs maintenance diagnosis uses the maintenance diagnostic device 6 to perform maintenance diagnosis.

[0063] The maintenance system 10 of the wire electrical discharge machining device in the present embodiment has the same configuration as that of the first embodiment, and the maintenance diagnosis device 6 and the management device 5 are owned by a maintenance diagnosis person.

[0064] Figure 6 This is a flowchart showing an example of the sequence of inspection of the wire discharge machining device involved in the fourth embodiment. For example, if the periodic inspection starts, the user first uses the wire discharge machining device 1. The data acquisition unit 4 acquires the status data, and the data acquisition unit 4 sends the status data to the maintenance diagnosis unit 6 (step S20). Next, the user requests the maintenance diagnosis personnel to perform the diagnosis (step S21). The maintenance diagnosis personnel operates the maintenance diagnosis device 6 to perform the maintenance diagnosis (step S22), and sends the result to the user (step S23). The maintenance diagnosis personnel explains the diagnosis result to the user (step S24), and ends the periodic inspection.

[0065] Figure 7 This is an example of a diagnostic result sent to a user in the inspection sequence of the wire discharge machining device involved in Embodiment 4. In an example of a diagnostic result report, "units", "problem locations and countermeasures" for the units, and "judgments" are recorded in a table format. For example, "judgments" are graded from A to C according to the degree of necessity of countermeasures. Figure 7 In the example, A is normal, B requires countermeasures, and C requires maintenance.

[0066] In addition, in the diagnosis result report, for example, when the "unit" is the "line travel system", the "problem part and countermeasure" is "normal", and the "judgment" is "A". In the case where the "unit" is the "automatic wiring device", the "problem part and countermeasure" is shown as "please clean the energized element", and the "judgment" is "B". In addition, when the "unit" is the "recovery unit", the "problem part and countermeasure" is shown as "please replace the recovery roller", and the "judgment" is "C". When the "unit" is the "tank", the "problem part and countermeasure" is "normal", and the "judgment" is "A". When the "unit" is the "liquid system", the "problem part and countermeasure" is shown as "please clean the float switch", and the "judgment" is "B".

[0067] Usually, the user only has the wire EDM device 1, so it is difficult to obtain the factory-finished wire EDM device data. Therefore, if it is the manufacturer of the wire EDM device 1 itself or a person who has signed a contract with the manufacturer, that is, a maintenance and diagnosis personnel, it is easy to collect the factory-finished wire EDM device data. Therefore, according to this embodiment, as in Embodiments 1 to 3, the reference maintenance data of the factory-finished wire machining device with the same attribute information is used to perform maintenance diagnosis, so that on the basis of being able to perform high-precision maintenance diagnosis, a lot of factory-finished wire EDM device data can be used, so that maintenance diagnosis can be performed with higher precision.

[0068] In the fourth embodiment, an example is described in which the status data acquired by the data acquisition unit 4 is transmitted to the maintenance and diagnosis device 6 . However, the status data may be transmitted to the maintenance and diagnosis device 6 via the control unit 2 .

[0069] In addition, the status data can be obtained when the user of the wire EDM device 1 operates the device, or when the maintenance and diagnosis personnel execute the machining device operation program for inspection. Each user has a unique usage method, so by executing the machining device operation program for inspection, the status of the wire EDM device 1 can be diagnosed more accurately.

[0070] When checking, for example Figure 8 As shown, the wire insertion device 17 can be moved from the origin to the full stroke of the X-axis and Y-axis in the machining groove 18, and the current load factor data of the drive motor can be obtained at the position of each axis. At this time, for example, the state data at the time of installation is used as the reference data, and the difference a between the state data at the time of inspection is obtained. In addition, if the maintenance diagnosis device 6 compares the reference maintenance data obtained from the management device 5 and the difference a at the time of inspection based on the attribute information of the wire discharge machining device 1 to be inspected, it can perform maintenance diagnosis.

[0071] Fig. 9This is a flowchart showing the procedure of periodic inspection when the maintenance and diagnosis personnel use the machining equipment operation program for inspection. Figure 6 In the sequence example, steps S26 and S27 are different, and the other steps are the same. Figure 6 Same steps, marked with Figure 6 Same label.

[0072] When the inspection starts, for example, the maintenance and diagnosis personnel remotely operates the wire discharge machining device 1 using the machining device operation program for inspection (step S26). Next, the data acquisition unit 4 sends the status data to the maintenance and diagnosis unit 5 (step S27). The processing of steps S22 to S25 after step S27 is the same as that of step S27. Figure 6 The processing of the same number is the same, so the description is omitted.

[0073] The user may execute the machining device operation program for inspection and contact the maintenance and diagnosis personnel. In short, by executing the machining device operation program for inspection and performing the inspection, the state of the wire electrical discharge machining device 1 can be diagnosed more accurately.

[0074] The structures shown in the above-mentioned embodiments are examples of the contents of the present invention and can be combined with other known technologies. Part of the structures of the combinations of the above-mentioned embodiments can be omitted or changed without departing from the gist of the present invention.

[0075] Description of the label

[0076] 1. Wire discharge machining device, 2. Control unit, 3. Wire travel unit, 4. Data acquisition unit, 5. Management device, 6. Maintenance diagnosis device, 7. Maintenance diagnosis unit, 8. Output unit, 10. Maintenance system, 21. Attribute information sending unit, 22. Analysis unit, 23. Storage unit, 24. Alarm data acquisition unit, 25. Improvement method analysis unit, 26. Improvement method proposal unit.

Claims

1. A maintenance system for a wire electrical discharge machining device, comprising: a management device for managing reference maintenance data indicating a state in which maintenance of a reference component of the shipped wire electrical discharge machining device is required, in accordance with a group determined based on attribute information of the shipped wire electrical discharge machining device; A wire discharge machining device that transmits reference data indicating a reference state of a target component and use state data indicating a use state; and A maintenance diagnostic device receives the attribute information of the wire discharge machining device, selects the group based on the attribute information, calls the reference maintenance data of the selected group from the management device, and diagnoses that maintenance is required when the usage status data received from the wire discharge machining device reaches the reference maintenance data.

2. The maintenance system for a wire electrical discharge machining device according to claim 1, wherein: The attribute information is at least one of a machine model, operating years, and an installation region.

3. The maintenance system for the wire electrical discharge machining device according to claim 1 or 2, characterized in that: The wire discharge machining device comprises: an attribute information transmitting unit configured to transmit the attribute information; and a data acquisition unit that acquires status data of a target component, The state data acquired by the data acquisition unit is transmitted to the maintenance and diagnostic device as the reference data or the usage state data.

4. The maintenance system for a wire electrical discharge machining device according to claim 1 or 2, characterized in that: The wire discharge machining device comprises: an attribute information sending unit, which sends the attribute information; a data acquisition unit that acquires status data of a target component; a storage unit configured to store the status data acquired by the data acquisition unit; and an analysis unit that analyzes the state data of the storage unit, The status data analyzed by the analyzing unit is transmitted to the maintenance diagnostic device as the reference data or the usage status data.

5. The maintenance system for a wire electrical discharge machining device according to any one of claims 1 to 4, characterized in that: The wire discharge machining device comprises: an alarm data acquisition unit that acquires alarm data; an improvement method analyzing unit that analyzes an improvement method based on the alarm data; and An improvement proposal unit outputs the improvement method.

6. The maintenance system for a wire electrical discharge machining device according to any one of claims 1 to 5, characterized in that: The management device or the maintenance diagnosis device is installed in a location different from the wire electrical discharge machining device.

7. A wire electrical discharge machining device comprising: a data acquisition unit that acquires reference data indicating a reference state of the target component and usage state data indicating a usage state, and transmits the data to the maintenance diagnosis device; and an attribute information sending unit, which sends attribute information, When the usage status data reaches reference maintenance data of a reference component of a shipped wire electric discharge machining device based on the received attribute information, it is diagnosed that maintenance is required.

8. A maintenance diagnostic device, which receives usage status data indicating the usage status of an object component and attribute information of the wire discharge machining device from the wire discharge machining device, selects a group based on the attribute information, calls reference maintenance data indicating the status of the factory-finished wire discharge machining device of the selected group that requires maintenance, and diagnoses that maintenance is required when the usage status data reaches the reference maintenance data.

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