JP6321511B2 - Equipment abnormality judgment method and equipment abnormality judgment system - Google Patents

Description

  The present invention relates to an equipment abnormality determination method and an equipment abnormality determination system.

  2. Description of the Related Art Conventionally, in a production line or the like for manufacturing or processing a product, a system having a system for determining abnormality of a drive unit driven by equipment is known. For example, Patent Document 1 and Patent Document 2 disclose systems that determine this type of equipment abnormality. Patent Document 1 discloses a failure diagnosis device for an automated line that compares a reference value based on a simulation result and an operation result of a sequencer during operation to diagnose a failure. In Patent Document 2, facility data indicating the operation state of each facility and operation data indicating the operation status of each facility are stored in a storage medium of a management server, and the facility data and operation data stored in the storage medium are analyzed. An integrated monitoring / analyzing apparatus for grasping equipment defects is disclosed.

JP-A-5-77143 Japanese Patent No. 4484450

  As a method for determining an abnormality of a drive unit driven by equipment, it is conceivable to provide a sensor for detecting a malfunction of the drive unit. However, when there are a plurality of drive units driven by equipment, a sensor must be provided for each drive unit, which increases costs. In this regard, the configurations disclosed in Patent Literature 1 and Patent Literature 2 determine an abnormality of the equipment according to the input / output signal of the drive unit. However, it has been difficult to accurately grasp under what circumstances the abnormality of the facility has occurred with only the input / output signals of the drive unit. In addition, in a production line that performs a plurality of processes using a plurality of facilities, the number of drive units increases accordingly, and the processing and configuration for monitoring input and output are complicated.

  The present invention provides an equipment abnormality determination method and an abnormality equipment determination system capable of accurately grasping in what circumstances an abnormality of a drive unit driven by equipment has occurred and simplifying a configuration for determining the abnormality. The purpose is to provide.

The present invention, multiple drive units (e.g., the transport unit 31 will be described later, fixed JIG unit 32, the spindle unit 33, Z-axis unit 34, etc.) to drive the by performing processing process equipment (e.g., a winding apparatus described later 13) is a facility abnormality determination method for determining abnormality based on the input / output signal of the drive unit, and the step of specifying which operation is being performed in the processing step divided into a plurality of operations. when the status of input and output signals of identifying one or more drive units among the multiple drive units driven by the specified the operation as the target drive unit, when the target drive unit is driven normally Comparing the reference value indicating the above and the input / output signal of the target drive unit in the specified operation, and determining the abnormality of the equipment in the operation. Equipment related to the abnormality determination method.

  As a result, the target for monitoring the input / output signal can be limited to the target drive unit driven by a specific operation in the processing steps, and the process and configuration for monitoring the input / output signal of the drive unit can be achieved. It can be simplified. In addition, since the abnormality of the equipment is determined in units of operation, it is possible to accurately grasp in what state of the processing process the abnormality has occurred in the equipment.

  When it is determined that an abnormality has occurred in the facility, the facility abnormality determination method refers to abnormality cause information set in advance according to the state of the input / output signal of the drive unit driven by the operation. Preferably, the method further includes a step of estimating the cause of abnormality of the operation and a step of notifying the worker of the estimated cause of abnormality.

  Thereby, since an operator can grasp | ascertain the cause of abnormality rapidly, even when abnormality has generate | occur | produced in an installation, a recovery operation can be performed quickly and efficiently.

  The facility abnormality determination method includes a step of detecting a quality abnormality of a product (for example, a stator core 2 described later) manufactured by the facility, and, when a quality abnormality of the product is detected, the cause of the quality abnormality Estimating the cause of the abnormality from the detected type of the quality abnormality by referring to the related operation information set in advance for each type of the quality abnormality that is assumed, and informing the operator of the estimated cause of the abnormality It is preferable to further include the step of performing.

  As a result, the operator can quickly grasp the cause of the quality abnormality, so that the recovery work can be performed promptly, and the decrease in production efficiency caused by the operation stoppage of the production line can be effectively reduced. .

  It is preferable that the equipment abnormality determination method further includes a step in which at least one of operation confirmation information for confirming the operation and information on restoration of the drive unit is managed for each drive unit.

  As a result, information is managed not for each facility but for each drive unit, so that the drive unit can be restored quickly and efficiently.

The present invention, multiple drive units (e.g., the transport unit 31 will be described later, fixed JIG unit 32, the spindle unit 33, Z-axis unit 34, etc.) to drive the by performing processing process equipment (e.g., a winding apparatus described later 13) is an equipment abnormality determination system (for example, equipment abnormality determination system 3 to be described later) that determines abnormality based on input / output signals of the drive unit, and in the processing step divided into a plurality of operations, The control unit (for example, PLC 91, 92, 93, 94 described later) that acquires information specifying whether or not the operation is performed is associated with the operation specified based on the information acquired by the control unit. one or more drive units among the multiple drive unit identified as a target drive units, input and output when the target drive unit is driven normally A monitoring unit (for example, a monitoring computer 90 to be described later) that compares the reference value indicating the status of the signal and the input / output signal of the target drive unit in the identified operation and determines whether or not the facility is abnormal in the operation And an equipment abnormality determination system.

  As a result, the target for monitoring the input / output signal can be limited to the target drive unit driven by a specific operation in the processing steps, and the process and configuration for monitoring the input / output signal of the drive unit can be achieved. It can be simplified. In addition, since the abnormality of the equipment is determined in units of operation, it is possible to accurately grasp in what state of the processing process the abnormality has occurred in the equipment.

  According to the facility abnormality determination method and the facility abnormality determination system of the present invention, it is possible to accurately grasp under what circumstances the abnormality of the drive unit driven by the facility has occurred, and the configuration for determining the abnormality is simplified. Can be

It is a figure which shows typically the motor manufacturing system with which the equipment abnormality determination method of this invention is applied. It is the block diagram which showed typically the equipment abnormality determination system with which the motor manufacturing system of this embodiment is provided. It is a schematic diagram which shows the relationship between operation | movement and the drive unit corresponding to this operation | movement. It is a flowchart which shows the flow of an equipment abnormality determination process. It is a flowchart which shows the flow of the process which estimates the cause of quality abnormality. It is an example of the image which shows the management information of a drive unit.

  Hereinafter, a preferred embodiment of an equipment abnormality judgment method and equipment abnormality judgment system of the present invention will be described with reference to the drawings. In the present embodiment, the facility abnormality determination method of the present invention will be described by taking as an example the facility abnormality determination system 3 applied to the motor manufacturing system 1 in which a coil is wound around the stator core 2. FIG. 1 is a diagram schematically showing a motor manufacturing system 1 to which the equipment abnormality determination method of the present invention is applied.

  As shown in FIG. 1, the motor manufacturing system 1 includes a core loading transport device 10, a winding device 13, a winding device 14, and an appearance inspection device 15 as equipment. First, each structure with which the motor manufacturing system 1 is provided is demonstrated.

  The core loading / conveying device 10 is a facility for loading workpieces into the production line of the motor manufacturing system 1 and conveying the workpieces to each facility. The work here is the stator core 2 and JIG (not shown) around which the conducting wire is wound.

  As shown in FIG. 1, the core loading / conveying device 10 according to the present embodiment includes a core loading robot 11 and a turret conveying unit 12 as drive units.

  The core loading robot 11 loads a workpiece to be processed into the turret transport unit 12. The core loading robot 11 of the present embodiment takes out a work (stator core 2 and JIG) from the work stocker 21 and delivers it to the turret transport unit 12.

  The turret transport unit 12 delivers workpieces with each facility of the winding device 13, the winding device 14, and the appearance inspection device 15. The turret transport unit 12 of the present embodiment includes a plurality of arms 23 that extend radially from a base portion 22 located in the center in plan view, and each arm 23 has a holding mechanism that holds the stator core 2. The turret transport unit 12 can move each arm 23 to a predetermined position where the stator core of each facility is transferred by rotating each arm 23 around the base 22.

  Next, the winding device 13 will be described. The winding device 13 is a facility that performs a winding process in which a conductive wire is wound around the stator core 2 to form a winding. The winding device 13 of this embodiment includes a transport unit 31, a fixed JIG unit 32, a main shaft unit 33, and a Z-axis unit 34 as drive units.

  The transport unit 31 transfers the turret transport unit 12 and the stator core 2. By this transport unit 31, the stator core 2 is transported to a predetermined position of the fixed JIG unit 32. The fixed JIG unit 32 includes a mechanism for fixing the stator core 2 to the winding device 13. The main shaft unit 33 is a device that rotates the stator core 2 fixed to the winding device 13. The Z-axis unit 34 includes a mechanism for moving the drawn-out lead wire up and down. By winding these drive units based on a preset operation sequence, windings are formed on the stator core 2.

  Next, the winding device 14 will be described. The winding device 14 is a facility that performs a winding process of winding an end line of a conducting wire wound around the stator core 2 around a JIG. By this winding process, the end line processing of the conducting wire wound around the stator core 2 is performed.

  The winding device 14 of the present embodiment includes a first winding conveyance unit 41, a first winding spindle unit 42, a first winding insertion unit 43, a first JIG rotation unit 44, and a second winding conveyance unit. 45, the 2nd winding spindle unit 46, the 2nd winding insertion unit 47, and the 2nd JIG rotation unit 48 are provided as a drive unit.

  The first winding transport unit 41 includes a mechanism for delivering the turret transport unit 12 and the work (stator core 2 and JIG). The first winding spindle unit 42 includes a mechanism for setting the stator core 2 at a position where the one end line is wound. The first winding insertion unit 43 includes a mechanism for inserting one end line into the first JIG. The first JIG rotation unit 44 includes a rotation mechanism that winds one end line around the first JIG. By driving these drive units based on a preset operation sequence, one end line processing is performed.

  The second winding transport unit 45 includes a mechanism for delivering the turret transport unit 12 and the work (stator core 2 and JIG). The second winding spindle unit 46 includes a mechanism for setting the stator core 2 at a position where the other end line is wound. The second winding insertion unit 47 includes a mechanism for inserting the other end line into the second JIG. The second JIG rotation unit 48 includes a rotation mechanism that winds an end line on the other side around the second JIG. By driving these drive units based on a preset operation sequence, end line processing of the other end line is performed.

  Next, the appearance inspection apparatus 15 will be described. The appearance inspection apparatus 15 is a facility that performs an appearance inspection process for inspecting the quality of the stator core 2 that is a manufactured product. The appearance inspection apparatus 15 of the present embodiment includes a loading / dispensing robot 61, an appearance inspection unit 62, and a side-out unit 63 as drive units.

  The input / output robot 61 includes a mechanism for transferring the turret transport unit 12 and the stator core 2. The appearance inspection unit 62 is an inspection device that includes a stage on which the stator core 2 is set, and inspects the appearance of the stator core 2 set on the stage with a sensor. The side extension unit 63 includes a mechanism for performing side extension that excludes the stator core 2 having a quality of NG by the appearance inspection unit 62. An appearance inspection is performed by driving these drive units based on a preset operation sequence.

  Next, the equipment abnormality determination system 3 provided in the motor manufacturing system 1 of the present embodiment will be described. FIG. 2 is a block diagram schematically showing an equipment abnormality determination system 3 provided in the motor manufacturing system 1 of the present embodiment.

  As shown in FIG. 2, the equipment abnormality determination system 3 includes a monitoring computer 90 and a plurality of support terminals 100.

  The monitoring computer 90 determines the abnormality of the equipment based on the input / output signals of the drive unit of each equipment. The monitoring computer 90 is electrically connected to each facility of the core loading and conveying device 10, the winding device 13, the winding device 14, and the appearance inspection device 15, and can communicate therewith. The monitoring computer 90 is connected to a server (not shown) in which information relating to each facility and process is stored, such as a database and storage data, and can acquire various types of information from the server.

  In the present embodiment, the monitoring computer 90 is electrically connected to the PLCs 91, 92, 93, 94 included in each facility, and the input / output signals of the drive units of each facility are connected via the PLCs 91, 92, 93, 94. To get. The PLC 91 is arranged in the winding device 13 and controls each drive unit of the winding device 13 and monitors input / output signals. PLC92 is arrange | positioned at the core insertion conveyance apparatus 10, and it controls each drive unit of the core insertion conveyance apparatus 10, and monitors an input-output signal. The PLC 93 is disposed in the winding device 14 and controls each drive unit of the winding device 14 and monitors input / output signals. The PLC 94 is disposed in the appearance inspection apparatus 15 and controls each drive unit of the appearance inspection apparatus 15 and monitors input / output signals.

  The support terminal 100 is a mobile terminal having a display function for displaying an image. The monitoring computer 90 is electrically connected to the monitoring computer 90 wirelessly or by wire, and can communicate with the monitoring computer 90. The support terminal 100 can display information received from the monitoring computer 90. An operator who manages the production line can operate the support terminal 100 to acquire various information on the equipment and the drive unit from the monitoring computer 90 and the server, and can display various information on the display unit of the support terminal 100.

  The equipment abnormality determination system 3 of the present embodiment divides the processing process into a plurality of operations and performs equipment abnormality determination. Next, the relationship between the operation for dividing the processing steps and the drive unit driven by the operation will be described. FIG. 3 is a schematic diagram showing the relationship between the operation and the drive unit corresponding to the operation. In FIG. 3, the operation of the core loading / conveying apparatus 10 that conveys the workpiece is omitted.

  As shown in FIG. 3, each process of the winding process, the winding process, and the appearance inspection process is divided into a plurality of operations. Each operation is associated with a drive unit that executes the operation. The monitoring computer 90 can acquire operation information such as which operation of each process is performed by each facility via the PLCs 91, 92, 93, 94.

  The winding process by the winding device 13 will be described. The winding process of the present embodiment is divided into a winding operation, a first winding operation, a second winding operation, and a winding payout operation.

  The winding-in operation is an operation executed by driving the transport unit 31 of the winding device 14, and the transport unit 31 is set as a corresponding drive unit in the operation. The first winding operation is an operation executed by driving the transport unit 31 and the fixed JIG unit 32, and the transport unit 31 and the fixed JIG unit 32 are set as corresponding drive units in the operation. The second winding operation is an operation executed by driving the spindle unit 33 and the Z-axis unit 34, and the spindle unit 33 and the Z-axis unit 34 are set as monitoring targets in the operation. The winding payout operation is an operation executed by driving the transport unit 31, and the transport unit 31 is set as a corresponding drive unit in the operation.

  The winding process by the winding device 14 will be described. The winding process includes a first winding input operation, a first winding insertion operation, a first JIG winding operation, a first winding discharge operation, a second winding insertion operation, and a second winding insertion operation. And a second JIG winding operation and a second winding / dispensing operation.

  The first winding and feeding operation is an operation executed by driving the first winding and conveying unit 41, and the first winding and conveying unit 41 is set as a corresponding drive unit in the operation. The first winding insertion operation is an operation performed by driving the first winding spindle unit 42 and the first winding insertion unit 43, and the first winding spindle unit 42 and the first winding insertion unit. 43 is set as the corresponding drive unit in the operation. The first JIG winding operation is an operation executed by driving the first winding main spindle unit 42 and the first JIG rotating unit 44, and the first winding main spindle unit 42 and the first JIG rotating unit 44 are in the operation. Set as the corresponding drive unit. The first winding / unloading operation is performed by driving the first winding / conveying unit 41 and the second winding / conveying unit 45, and the first winding / conveying unit 41 and the second winding / conveying unit. 45 is set as the corresponding drive unit in the operation.

  The second winding and feeding operation is an operation performed by driving the first winding and conveying unit 41 and the second winding and conveying unit 45, and the first winding and conveying unit 41 and the second winding and conveying unit. 45 is set as the corresponding drive unit in the operation. The second winding insertion operation is an operation executed by driving the second winding spindle unit 46 and the second winding insertion unit 47, and the second winding spindle unit 46 and the second winding insertion unit. 47 is set as the corresponding drive unit in the operation. The second JIG winding operation is an operation executed by driving the second winding main spindle unit 46 and the second JIG rotating unit 48, and the second winding main spindle unit 46 and the second JIG rotating unit 48 are in the operation. Set as the corresponding drive unit. The second winding / dispensing operation is an operation executed by driving the second winding / conveying unit 45, and the second winding / conveying unit 45 is set as a corresponding drive unit in the operation.

  The appearance inspection process by the appearance inspection apparatus 15 will be described. The appearance inspection process is divided into an inspection input operation, a side inspection operation, a front inspection operation, and an inspection dispensing operation.

  The inspection introduction operation is an operation executed by driving the input / output robot 61, and the input / output robot 61 is set as a corresponding drive unit in the operation. The side inspection operation and the front inspection operation are both operations performed by the appearance inspection unit 62, and the appearance inspection unit 62 is set as a corresponding drive unit in the side inspection operation and the front inspection operation. The inspection / dispensing operation is an operation that is executed by driving the input / output robot 61 and the side-by-side unit 63, and the input / output robot 61 and the side-by-side unit 63 are set as corresponding drive units.

  Each step of performing processing such as processing and inspection on the stator core 2 as a processing target is divided into a plurality of operations as described above. The monitoring computer 90 monitors the operation status of each process, and performs equipment abnormality determination based on the input / output signals of the drive unit associated with the operation. Next, a flow of processing for notifying an operator of occurrence of abnormality from equipment abnormality determination will be described. FIG. 4 is a flowchart showing the flow of the equipment abnormality determination process.

  The monitoring computer 90 monitors the operation sequence of each facility via the PLCs 91, 92, 93, 94, and acquires operation information indicating which operation the facility is performing in the process (S101). A reference time for performing the operation is set for each operation, and the monitoring computer 90 performs abnormality determination at the timing when the operation is switched (S102). In the abnormality determination, the drive unit that has executed the operation is specified as the target drive unit (S103). For example, when the second winding insertion operation shifts to the second JIG winding operation, the second winding spindle unit 46 associated with the second winding insertion operation, the second winding insertion unit 47, Is identified as the target drive unit. In the processing of this embodiment, the target drive unit is specified at the timing when the operation is switched (S103), but the timing for specifying the target drive unit is changed to an appropriate timing such as during operation or before the start of the operation. be able to.

  When the target drive unit is specified, the monitoring computer 90 performs an abnormality determination process based on the input / output signal of the target drive unit on which the operation has been performed and a preset reference value (S104). The reference value of this embodiment is set based on the state of the input / output signal when the target drive unit is driven normally and the operation is completed. The monitoring computer 90 determines that an abnormality has occurred in the operation when the input / output signal of the target drive unit is different from the reference value when the reference time has elapsed since the operation started. For example, if it is detected on the basis of the input / output signal of the drive unit that the transition to the second JIG winding operation has not been made even after the reference time has elapsed since the start of the second winding insertion operation, It is determined that the insertion operation is not performed normally and an abnormality has occurred (see FIG. 3).

  When the monitoring computer 90 determines that an abnormality has occurred in the operation, the monitoring computer 90 refers to the abnormality cause information. The abnormality cause information is information related to an abnormality cause assumed from the state of the input / output signal and the drive unit that caused the abnormality. In this embodiment, this abnormality cause information is set and managed for each operation. When the monitoring computer 90 determines that an abnormality has occurred in the process of S104, it is estimated that a malfunction that causes the abnormality has occurred in the target drive unit that has performed the operation (S105). For example, if it is determined that the second winding insertion operation is not normally performed, a second winding spindle unit 46 associated with the second winding insertion operation, a second winding insertion unit 47, Is estimated as a target drive unit that may have a malfunction that causes an abnormality (see FIG. 3).

  After estimating the target drive unit in the process of S105, the monitoring computer 90 transmits abnormality occurrence information to the support terminal 100 (S106). The abnormality occurrence information is information on the operation in which the abnormality has occurred, the cause of the abnormality, the drive unit estimated to be the cause of the abnormality, and the like. The support terminal 100 that has received the abnormality occurrence information notifies the operator that an abnormality has occurred by using an image indicating the abnormality information, a notification sound, or the like. Since the abnormality occurrence information includes information on the drive unit that is the cause of the abnormality, the operator can quickly grasp the abnormality cause and the drive unit that caused the abnormality, and can efficiently perform the recovery work. The equipment abnormality determination process of this embodiment is performed according to the above flow.

  Next, an abnormality cause estimation process in the case where a quality abnormality is detected in the stator core 2 in the appearance inspection apparatus 15 will be described. The quality abnormality detected by the appearance inspection apparatus 15 may be known in advance for an operation that is likely to cause a quality abnormality depending on the type. In the present embodiment, when a quality abnormality occurs, a process with a high probability of causing the abnormality is identified and notified to the operator. FIG. 5 is a flowchart showing a flow of processing for estimating the cause of the quality abnormality.

  As shown in FIG. 5, when the monitoring computer 90 acquires the quality abnormality information of the stator core 2 via the PLC 94, the operation causing the abnormality is specified based on the quality abnormality information (S201, S202). The monitoring computer 90 or a server to which the monitoring computer 90 is connected stores a related operation list (related operation information) in which a cause operation is associated with the type of quality abnormality, and the related operation Refer to the list and identify the action that caused the error. When the monitoring computer 90 determines the operation based on the quality abnormality information, the monitoring computer 90 identifies a target drive unit that may have caused the abnormality (S203).

  For example, if it is empirically known that the winding height abnormality of the stator core 2 has occurred due to a malfunction in the first winding work and the second winding work in the winding process, the related operation list The first winding operation and the second winding operation are set as target operations for the winding height abnormality. In this case, when a winding height abnormality is detected by the appearance inspection device 15, the monitoring computer 90 causes the driving associated with the first winding operation and the second winding operation as the cause of the winding height abnormality. The fixed JIG unit 32, the spindle unit 33, and the Z-axis unit 34, which are units, are estimated as target drive units that cause the quality abnormality.

  When the monitoring computer 90 estimates the target drive unit, the monitoring computer 90 transmits quality abnormality information to the support terminal 100 (S204). The quality abnormality information is information related to the target drive unit estimated to be the occurrence of the quality abnormality and the cause of the quality abnormality. The support terminal 100 that has received the quality abnormality information notifies the operator that the quality abnormality has occurred by an image or a notification sound indicating the quality abnormality. Since the quality abnormality information includes information on the drive unit that is the cause of the quality abnormality, the operator can quickly grasp the operation unit that is likely to cause the quality abnormality. When there are a plurality of target drive units, a drive unit that is closely related to the quality abnormality may be preferentially displayed as the cause of the quality abnormality.

  Next, a support system that supports recovery work by an operator will be described. In the present embodiment, not only information is managed for each facility, but also various information is managed in units of drive units. FIG. 6 is an example of an image showing the management information of the drive unit.

  As shown in FIG. 6, drive unit information such as the name and model of the drive unit, the position of the drive unit in the winding device, confirmation items, and troubleshooting is set for each drive unit. The monitoring computer 90 can transmit drive unit information to the support terminal 100 and display the drive unit information on the display screen of the support terminal 100. The operator can also display the drive unit information on the support terminal 100 by operating the support terminal 100 and requesting the drive unit information from the monitoring computer 90 side. As described above, when the monitoring computer 90 detects an abnormal operation and an abnormal quality, the drive unit that causes the abnormality is estimated. Therefore, the restoration work is performed with reference to the related information of the estimated drive unit. It can be carried out.

  According to the equipment abnormality determination method of the present embodiment described above, the following effects are obtained.

  The equipment abnormality determination method according to the present embodiment determines abnormality of the winding device 13, the winding device 14, and the appearance inspection device 15 that drive a plurality of drive units to perform processing steps based on input / output signals of the drive units. In the equipment abnormality determination method, in a processing step divided into a plurality of operations, a step of specifying which operation is performed, and one or a plurality of drive units driven by the specified operation as target drive units Comparing the reference step indicating the state of the input / output signal when the target drive unit is normally driven with the input / output signal of the target drive unit in the specified operation, and identifying the equipment in the operation And a step of performing an abnormality determination.

  As a result, the target for monitoring the input / output signal can be limited to the target drive unit driven by a specific operation in the processing steps, and the process and configuration for monitoring the input / output signal of the drive unit can be achieved. It can be simplified. In addition, since the abnormality of the equipment is determined in units of operation, it is possible to accurately grasp in what state of the processing process the abnormality has occurred in the equipment.

  In addition, when the equipment abnormality determination method of the present embodiment determines that an abnormality has occurred in the equipment (winding device 13, winding device 14, and appearance inspection device 15), preset abnormality cause information ( The process further includes a step of referring to the target drive unit information) to estimate the cause of the abnormality of the operation, and a step of transmitting information on the estimated cause of the abnormality to the support terminal 100 and notifying the operator.

  Thereby, since an operator can grasp | ascertain the cause of abnormality rapidly, even when abnormality has generate | occur | produced in an installation, a recovery operation can be performed quickly and efficiently.

  In addition, the facility abnormality determination method of the present embodiment is assumed to be a cause of quality abnormality when a quality abnormality of the stator core 2 manufactured by the motor manufacturing system 1 is detected and a quality abnormality of the stator core 2 is detected. A step of estimating the cause of the abnormality from the type of the detected quality abnormality and a step of notifying the estimated cause of the abnormality to the operator by referring to the related operation information set in advance for each type of the quality abnormality. In addition.

  As a result, the operator can quickly grasp the cause of the quality abnormality, so that the recovery work can be performed promptly, and the decrease in production efficiency caused by the operation stoppage of the production line can be effectively reduced. .

  Moreover, the equipment abnormality determination method according to the present embodiment includes a process in which operation confirmation information for confirming operation and information related to recovery are managed for each drive unit.

  As a result, information is managed for each drive unit, so that it is possible to quickly and efficiently restore the facility abnormality caused by the malfunction of the drive unit.

  The preferred embodiment of the equipment abnormality judgment method and equipment abnormality judgment system of the present invention has been described above, but the present invention is not limited to the above-described embodiment, and can be changed as appropriate. In the said embodiment, although the equipment abnormality determination method is a structure applied to the motor manufacturing system 1, it can be applied also to other equipment.

  In the above embodiment, the cause of the abnormality is set for each drive unit, but the present invention is not limited to this configuration. For example, it may be specified that an abnormality has occurred in a part of the drive unit, or it may be specified that an abnormality has occurred in units of equipment.

  In the above embodiment, the cause of abnormal operation is estimated by referring to preset abnormality cause information (target drive unit information), but this configuration can be changed as appropriate. For example, abnormal causes that occur during system operation can be accumulated, and this information can be used to estimate abnormal causes of the operation.

3 Equipment abnormality judgment system 10 Core loading / conveying equipment (facility)
11 Core insertion robot (drive unit, target drive unit)
12 Turret transport unit (drive unit, target drive unit)
13 Winding device (equipment)
14 Winding device (equipment)
15 Visual inspection equipment (equipment)
31 Transport unit (drive unit, target drive unit)
32 Fixed JIG unit (drive unit, target drive unit)
33 Spindle unit (drive unit, target drive unit)
34 Z-axis unit (drive unit, target drive unit)
41 First winding transport unit 41 (drive unit, target drive unit)
42 First winding spindle unit 42 (drive unit, target drive unit)
43 First winding insertion unit 43 (drive unit, target drive unit)
44 1st JIG rotation unit (drive unit, target drive unit)
45 Second winding transport unit (drive unit, target drive unit)
46 Second winding spindle unit (drive unit, target drive unit)
47 Second winding insertion unit (drive unit, target drive unit)
48 2nd JIG rotation unit (drive unit, target drive unit)
61 Input / output robot (drive unit, target drive unit)
62 Appearance inspection unit (drive unit, target drive unit)
63 Side extension unit (drive unit, target drive unit)
90 Monitoring computer (monitoring unit)
91 PLC (control unit)
92 PLC (control unit)
93 PLC (control unit)
94 PLC (control unit)

Claims (5)

A determining equipment abnormality determination method based on the output signal of the drive unit abnormality amenities drives multiple drive unit performs the process steps,
In the processing step divided into a plurality of operations, a step of identifying which of the operations is performed;
And specifying as object drive unit to one or more drive units among the multiple drive units driven by the specified above operation,
Compare the reference value indicating the state of the input / output signal when the target drive unit is normally driven with the input / output signal of the target drive unit in the specified operation, and determine whether the equipment is abnormal in the operation A process of performing;
Equipment abnormality judgment method including If it is determined that an abnormality has occurred in the equipment, the cause of the abnormality of the operation is estimated by referring to the abnormality cause information set according to the state of the input / output signal of the drive unit driven by the operation. And a process of
The facility abnormality determination method according to claim 1, further comprising: notifying an operator of the estimated cause of abnormality. Detecting a quality abnormality of a product manufactured by the facility;
When the quality abnormality of the product is detected, the related operation assumed to be the cause of the quality abnormality refers to the related operation information set in advance for each type of the quality abnormality, and the type of the detected quality abnormality Estimating the cause of abnormality from
Informing the worker of the estimated cause of abnormality;
The equipment abnormality determination method according to claim 1 or 2, further comprising:   The equipment abnormality determination according to any one of claims 1 to 3, further comprising a step in which at least one of operation confirmation information for confirming the operation and information on restoration of the drive unit is managed for each drive unit. Method. A facility abnormality determination system for determining, based equipment abnormalities performing processing step by driving the multiple drive units to the input and output signals of the drive unit,
In the processing step divided into a plurality of operations, a control unit that acquires information for specifying which of the operations is performed;
Wherein identifying the one or more drive units among the multiple drive units associated with the operation specified based on the information acquired by the control unit as a target drive unit, the object drive unit is normally driven A reference value indicating the state of the input / output signal at the time, and the input / output signal of the target drive unit in the identified operation, and a monitoring unit for determining the abnormality of the equipment in the operation,
An equipment abnormality judgment system comprising:

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