JP2022033177A - Equipment element maintenance analysis system and equipment element maintenance analysis method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an equipment element maintenance analysis system and an equipment element maintenance analysis method capable of appropriately analyzing the necessity of maintaining an equipment element.

SOLUTION: An equipment element maintenance analysis method for analyzing the necessity of maintaining at least one equipment element to be attached to a manufacturing facility for manufacturing a product acquires operation history information of the manufacturing facility at prescribed timing, calculates an error rate on the basis of an error frequency related to equipment elements included in the operation history information, sequences information of equipment elements having a large error frequency, creates a maintenance recommendation equipment element list including error frequencies and the effect that maintenance is required, and displays the maintenance recommendation equipment element list.

SELECTED DRAWING: Figure 6

COPYRIGHT: (C)2022,JPO&INPIT

Description

The present invention relates to an equipment element maintenance analysis system and an equipment element maintenance analysis method for analyzing the necessity of maintenance of equipment elements attached to manufacturing equipment for manufacturing a product.

Manufacturing equipment such as component mounting machines that manufacture products are used in a state where replaceable equipment elements are selected and attached according to the product. A component mounting machine that manufactures a mounting board in which electronic circuit parts are mounted on a circuit board as a product is used by attaching a component supply device that supplies electronic circuit components as an equipment element. As the usage time of the equipment element increases, the wear and distortion of the built-in components increase, and problems such as work errors may occur.

Therefore, at a predetermined maintenance timing, maintenance work such as cleaning of equipment elements and reference position adjustment, and maintenance work including repair work such as parts replacement are executed (for example, Patent Document 1). In the maintenance method described in Patent Document 1, the operating status of each component mounting machine is monitored, and when the number of parts supplied or the number of supply errors occurs in the component supply device attached to the component mounting machine exceeds the set number of times, that component is used. It is judged that maintenance is required for the supply device.

Japanese Unexamined Patent Publication No. 2004-140162

However, in Patent Document 1, the cumulative number of mistakes is increased even if maintenance is not currently required due to natural recovery from a sudden error caused by dust or the like or preventive maintenance by an operator. Since it was judged that maintenance was necessary when the number of times exceeded a predetermined number, there was room for further improvement.

Therefore, an object of the present invention is to provide an equipment element maintenance analysis system and an equipment element maintenance analysis method capable of appropriately analyzing the necessity of maintenance of equipment elements.

The equipment element maintenance analysis system of the present invention is included in the history information acquisition unit and the operation history information, in which at least one equipment element is attached and the operation history information of the manufacturing equipment for manufacturing the product is acquired at a predetermined timing. An error rate calculation unit that calculates an error rate based on the number of errors related to the equipment element, a maintenance determination unit that determines the necessity of maintenance of the equipment element based on the error rate, and equipment with a large number of errors. It includes a list creation unit that orders element information and creates a maintenance recommended equipment element list including the number of errors and maintenance is required, and a display processing unit that displays the maintenance recommended equipment element list.

The equipment element maintenance analysis method of the present invention is an equipment element maintenance analysis method for analyzing the necessity of maintenance of at least one equipment element attached to the manufacturing equipment for manufacturing a product, and predetermined operation history information of the manufacturing equipment. The error rate is calculated based on the number of errors related to the equipment element included in the operation history information, and the information of the equipment element having a large number of errors is ordered, and the number of errors and maintenance are performed. Create a maintenance recommended equipment element list including the fact that is necessary, and display the maintenance recommended equipment element list.

According to the present invention, the necessity of maintenance of equipment elements can be appropriately analyzed.

Configuration explanatory view of the equipment element maintenance analysis system of one Embodiment of this invention Configuration explanatory view of the component mounting machine of the embodiment of the present invention A block diagram showing a configuration of a processing system of an equipment element maintenance analysis system according to an embodiment of the present invention. Explanatory drawing of an example of the operation history information of the tape feeder determined to be maintenance required by the equipment element maintenance analysis system of the embodiment of the present invention (b) The operation history information of the tape feeder determined to be maintenance unnecessary. Explanatory drawing of an example The figure which shows an example of the maintenance recommended feeder list which is notified by the equipment element maintenance analysis system of one Embodiment of this invention. Flow chart of equipment element maintenance analysis method by equipment element maintenance analysis system of one Embodiment of this invention

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The configuration, shape, etc. described below are examples for explanation, and can be appropriately changed according to the specifications of the equipment element maintenance analysis system, component mounting line, component mounting machine, component supply device, and the like. In the following, the corresponding elements are designated by the same reference numerals in all the drawings, and duplicate description will be omitted. In FIG. 2 and a part described later, as biaxial directions orthogonal to each other in the horizontal plane, the X direction of the substrate transport direction (the direction perpendicular to the paper surface in FIG. 2) and the Y direction orthogonal to the substrate transport direction (the left-right direction in FIG. 2). ) Is shown. Further, the Z direction (vertical direction in FIG. 2) is shown as a height direction orthogonal to the horizontal plane.

First, the configuration of the equipment element maintenance analysis system 1 will be described with reference to FIG. The equipment element maintenance analysis system 1 is configured to include a factory F and a support center S established at a location away from the factory F. In the factory F, a component mounting line L1 configured by connecting a plurality of component mounting machines M1 to M3 is installed. The component mounting line L1 has a function of manufacturing a mounting board while sequentially mounting electronic circuit components (hereinafter referred to as "component D"; see FIG. 2) on a circuit board B (see FIG. 2) by component mounting machines M1 to M3. Have.

The component mounting machines M1 to M3 are connected to the line management PC 3 via a premises communication network 2 such as a LAN (Local Area Network). Further, the factory F is provided with a mail receiving device 4 for receiving an e-mail transmitted from the support center S. A plurality of component mounting lines may be installed in the factory F. Further, the number of component mounting machines M1 to M3 constituting the component mounting line L1 does not have to be three, and may be one, two, four or more.

In FIG. 1, the support center S is established at a position where it is possible to efficiently perform analysis of the necessity of maintenance of equipment elements for a plurality of factories F (customers) and various support for the person in charge of each factory F. .. The support center S is provided with a maintenance management PC 5 and a mail server 6. The mail server 6 is connected to the maintenance management PC 5 via a private communication network 7 such as a LAN. The line management PC 3 and the maintenance management PC 5 exchange information via an off-site communication network 8 such as the Internet or a mobile communication line. The mail receiving device 4 and the mail server 6 exchange information via the off-site communication network 9. The off-site communication network 8 and the off-site communication network 9 may share the same off-site communication network.

Next, the configurations of the component mounting machines M1 to M3 will be described with reference to FIG. The component mounting machines M1 to M3 have the same configuration, and the component mounting machines M1 will be described below. The component mounting machine M1 has a function of mounting the component D on the circuit board B. The substrate transport mechanism 12 provided on the upper surface of the base 11 transports the circuit board B in the X direction, positions it, and holds it. The head moving mechanism 13 moves the mounting head 14 mounted via the plate 13a in the X direction and the Y direction. A suction nozzle 15 is mounted on the lower end of the mounting head 14.

A plurality of tape feeders 16 are attached side by side in the X direction to the feeder base 17a on the upper portion of the carriage 17 coupled to the base 11 on the side of the substrate transport mechanism 12. The feeder base 17a is provided with a plurality of slots for mounting the tape feeder 16, and a feeder address is set in each slot. The component mounting machine M1 can mount the trolley 17 at two feeder positions, one on the front side and the other on the rear side. In the component mounting machine M1, the mounting position of the tape feeder 16 can be specified by the feeder position (front side, rear side) and the feeder address.

In the carriage 17, a carrier tape 18 for storing a component D supplied to the component mounting machine M1 is wound and stored on a reel 19 and held. The carrier tape 18 inserted in the tape feeder 16 is pitch-fed at regular intervals by the tape feeding mechanism 16a built in the tape feeder 16. As a result, the component D stored in the carrier tape 18 is sequentially supplied to the component supply port 16b provided on the upper portion of the tape feeder 16.

In the component mounting operation, the mounting head 14 moves above the tape feeder 16 by the head moving mechanism 13, and the component D supplied to the component supply port 16b of the tape feeder 16 is vacuum-sucked and picked up by the suction nozzle 15 ( Arrow a). The mounting head 14 holding the component D moves above the circuit board B held by the board transfer mechanism 12 by the head moving mechanism 13, and mounts the component D at a predetermined component mounting position Ba on the circuit board B (. Arrow b).

In FIG. 2, a substrate recognition camera 20 whose optical axis direction is directed downward is attached to the plate 13a. The board recognition camera 20 moves in the X direction and the Y direction integrally with the mounting head 14 by the head moving mechanism 13. The board recognition camera 20 moves above the tape feeder 16 and takes an image of the component D supplied to the component supply port 16b. The image pickup result is image-recognized, and the amount of supply position deviation in which the component D supplied from the expected regular supply position is displaced is calculated. Based on the calculated supply position deviation amount, the suction position (stop position of the mounting head 14) when the suction nozzle 15 picks up the component D is corrected. Further, a supply error in which the component D cannot be recognized because the component D is not supplied to the component supply port 16b is also detected.

In FIG. 2, the mounting head 14 includes a flow rate sensor 14a that measures the flow rate of the air flowing in from the suction nozzle 15. When the suction nozzle 15 normally sucks the component D, the air flowing from the suction nozzle 15 becomes smaller and the vacuum pressure of the suction nozzle 15 becomes lower. On the other hand, when the suction nozzle 15 cannot hold the component D or when a suction error occurs such as suction in an abnormal posture, air flows in from the suction nozzle 15 and the vacuum pressure of the suction nozzle 15 does not decrease.

Therefore, it is possible to detect the presence or absence of an adsorption error (adsorption error) from the measurement result of the air flow rate by the flow rate sensor 14a. A vacuum gauge may be provided instead of the flow sensor 14a, and the presence or absence of a suction error (suction error) may be determined from the measurement result of the vacuum pressure by the vacuum gauge. Further, by measuring the flow rate of the air flowing in from the suction nozzle 15 after the component is mounted by the flow rate sensor 14a, it is possible to detect the mounting error that the mounting head 14 cannot mount the component D on the circuit board B and brings it back.

A component recognition camera 21 with the optical axis direction facing upward is attached to the upper surface of the base 11 between the substrate transfer mechanism 12 and the tape feeder 16. The component recognition camera 21 captures an image of the lower surface of the component D (or the suction nozzle 15 that could not hold the component D) held by the suction nozzle 15 when the suction nozzle 15 that picks up the component D passes above. .. The image pickup result is recognized as an image, and a recognition error has occurred in which the posture of the component D held by the suction nozzle 15 is normal or abnormal, or the component D that should be held by the suction nozzle 15 cannot be recognized. It is judged whether or not there is. The component recognition camera 21 may take an image of a side surface other than the lower surface of the component D.

Further, the image pickup result is image-recognized, and the suction position shift amount in which the component D sucked by the suction nozzle 15 is displaced from the expected normal suction position is calculated. When the component D is mounted on the component mounting position Ba on the circuit board B, the mounting position correction and the mounting posture correction are executed based on the suction position deviation amount.

The mounting head 14, the suction nozzle 15, and the tape feeder 16 are appropriately selected according to the type of the component D to be mounted on the circuit board B, and are mounted on the component mounting machine M1. As described above, the mounting head 14 for mounting the component D on the circuit board B, the suction nozzle 15 mounted on the mounting head 14 for sucking the component D, or the tape feeder 16 for supplying the component D to the mounting head 14 (component supply device). ) Is an equipment element attached to the component mounting machine M1. Then, the component mounting machine M1 has at least one equipment element attached, sucks the component D supplied from the component supply device by the mounting head 14, and recognizes and recognizes the lower surface of the sucked component D by the component recognition camera 21. This is a manufacturing facility for manufacturing a product (mounting board) by mounting the resulting component D on a circuit board B.

Next, the configuration of the processing system of the equipment element maintenance analysis system 1 will be described with reference to FIG. The component mounting machines M1 to M3 have the same configuration, and the component mounting machines M1 will be described below. In FIG. 3, the component mounting machine M1 includes a mounting control unit 31. The mounting control unit 31 includes a mounting storage unit 32, a recognition processing unit 35, a mounting operation processing unit 36, and a premises communication unit 37. The premises communication unit 37 transmits / receives data to / from other component mounting machines M2 and M3 and the line management PC 3 via the premises communication network 2. The mounting storage unit 32 is a storage device, and includes a mounting data storage unit 33 and a parameter storage unit 34. In the mounting data storage unit 33, data such as the component type and size of the component D mounted on the circuit board B, the component mounting position Ba (XY coordinates), and the like are stored for each type of the mounting board to be manufactured.

The recognition processing unit 35 recognizes an image of the image pickup result of the component supply port 16b of the tape feeder 16 by the substrate recognition camera 20, calculates the correction value of the suction position of the suction nozzle 15, and stores it in the parameter storage unit 34. Further, the recognition processing unit 35 recognizes the image pickup result of the suction nozzle 15 that picks up the component D by the component recognition camera 21, and mounts the component D on the circuit board B with the component mounting position Ba and the mounting posture. The correction value is calculated and stored in the parameter storage unit 34. Further, the recognition processing unit 35 recognizes the image pickup result as an image and detects a supply error and a recognition error.

In FIG. 3, the mounting operation processing unit 36 has a substrate transfer mechanism 12, a head moving mechanism 13, and a mounting head based on various data stored in the mounting data storage unit 33 and various correction values stored in the parameter storage unit 34. 14. The tape feeder 16 is controlled to execute the component mounting operation. Further, when the mounting operation processing unit 36 detects a work error described later during the component mounting operation, the mounting operation processing unit 36 transmits the time when the work error occurs, the content of the work error, and the like to the line management PC 3.

The work errors include a suction error in which the suction nozzle 15 cannot suck the component D, a recognition error in which the component D sucked and held by the suction nozzle 15 by the component recognition camera 21 cannot be recognized, and the mounting head 14 attaches the component D to the circuit board B. A mounting error that cannot be mounted and brought back, a supply error that the component D supplied by the tape feeder 16 (component supply device) by the board recognition camera 20 cannot be recognized, and the like are detected. When the component mounting line L1 is provided with a mounting inspection device for inspecting the component D mounted on the circuit board B in addition to the component mounting machines M1 to M3, it is based on the presence / absence of the component D inspected by the mounting inspection device and the amount of misalignment. You may detect an implementation error.

In FIG. 3, the line management PC 3 includes a line processing unit 41. The line processing unit 41 includes a line storage unit 42, an operation information collection unit 44, an on-site communication unit 45, and an off-site communication unit 46. The premises communication unit 45 transmits / receives data to / from the component mounting machines M1 to M3 via the premises communication network 2. The off-site communication unit 46 transmits / receives data to / from the maintenance / management PC 5 installed in the support center S via the off-site communication network 8. The line storage unit 42 is a storage device and includes an operation history storage unit 43.

The operation information collecting unit 44 associates the work error occurrence time and the content of the work error transmitted from the component mounting machines M1 to M3 with the information for identifying the equipment element related to the work error, and as the operation history information. It is stored in the storage unit 43. Further, the operation information collecting unit 44 supplies the number of times the component D is sucked, the number of times of mounting, and the tape feeder 16 (parts supply device) for each suction nozzle 15 at a predetermined timing such as every hour in addition to the timing when a work error occurs. The number of supplied parts and the like are collected and stored in the operation history storage unit 43 as operation history information in association with the information for identifying the equipment element.

In FIG. 3, the maintenance management PC 5 includes a maintenance processing unit 51. The maintenance processing unit 51 includes an off-site communication unit 52, an on-site communication unit 53, a display unit 54, a maintenance storage unit 55, a history information acquisition unit 58, an error rate calculation unit 59, a maintenance determination unit 60, a list creation unit 61, and a display processing unit. 62 is provided. The maintenance storage unit 55 is a storage device, and includes an equipment information storage unit 56 and an analysis result storage unit 57. The off-site communication unit 52 transmits and receives data to and from the line management PC 3 installed in the factory F via the off-site communication network 8. The premises communication unit 53 transmits / receives data to / from the mail server 6 via the premises communication network 7. The display unit 54 is a display device such as a liquid crystal panel, and displays various data, information, and the like.

The history information acquisition unit 58 acquires operation history information from the line management PC 3 at a predetermined timing such as at the end of daily work or when a worker is replaced at the factory F, and the equipment information storage unit 56 receives the operation history information as equipment information for each equipment element. Remember. The history information acquisition unit 58 may acquire the operation history information of the difference updated from the previous acquisition every day, or may collectively acquire the operation history information of a predetermined analysis target period such as one week. That is, the equipment information storage unit 56 may store information for an analysis target period sufficient for analyzing the necessity of maintenance of each equipment element.

In FIG. 3, the error rate calculation unit 59 calculates the error rate based on the number of error times and the number of times of adsorption of work errors related to the equipment elements included in the operation history information. At that time, the error rate calculation unit 59 calculates the error rate every predetermined period such as one day and stores it in the analysis result storage unit 57. The maintenance determination unit 60 determines whether or not maintenance of the equipment element is necessary based on the analysis results such as the operation history information stored in the equipment information storage unit 56 and the error rate stored in the analysis result storage unit 57. More specifically, the maintenance determination unit 60 accumulates the error counts of work errors related to the equipment elements that occurred during the analysis target period such as one week, and among the equipment elements with a large number of errors, the latest two days or the like is predetermined. Equipment elements whose latest error rate during the period is equal to or higher than the warning error rate (predetermined value) are judged to require maintenance.

Here, an example of the necessity of maintenance determined by the maintenance determination unit 60 will be described with reference to FIGS. 4 (a) and 4 (b). FIG. 4A shows the tape feeder 16 determined to require maintenance, and FIG. 4B shows the cumulative number of errors (bar graph) for 7 operating days of the tape feeder 16 determined to require maintenance and each operating day. The error rate (line graph) is shown in the graph. The cumulative number of errors is displayed by accumulating the work errors related to the tape feeder 16 from 7 working days before. As for the error rate, the error rate of the work error related to the tape feeder 16 is indicated by a black circle when the error rate is equal to or higher than the warning error rate and a white circle when the error rate is lower than the warning error rate.

The error rate of the tape feeder 16 shown in FIG. 4A is lower than the warning error rate 7 working days before, but exceeds the warning error rate from 6 working days before. That is, since the error rates of the latest two days (two working days before and one working day before) are equal to or higher than the warning error rate, the maintenance determination unit 60 determines that "maintenance is required". The error rate of the tape feeder 16 shown in FIG. 4B suddenly exceeds the warning error rate 6 working days before and 5 working days before, but after 4 working days, the causative dust is removed. The bug has been resolved and the warning error rate is lower. Therefore, the error rate for the latest two days is not higher than the warning error rate, and the maintenance determination unit 60 determines that "maintenance is unnecessary".

In FIG. 3, the list creation unit 61 includes operation history information stored in the equipment information storage unit 56, analysis results such as an error rate stored in the analysis result storage unit 57, and maintenance required by the maintenance determination unit 60. Based on the no, create a list of equipment elements that require maintenance (maintenance recommended equipment element list).

The created maintenance recommended equipment element list is stored in the analysis result storage unit 57, and is also transmitted as an e-mail to the mail receiving device 4 installed in the factory F via the mail server 6. That is, the mail server 6 is a communication unit that transmits an e-mail including information on equipment elements determined to require maintenance. Then, the list creation unit 61 and the mail server 6 (communication unit) order the information of the equipment elements having a large number of errors, and the information of the equipment elements determined to be maintenance is required including the number of errors and the fact that maintenance is required. It is a notification means for notifying. As a result, it is possible to convey to the person in charge of the factory F the information in which the equipment elements requiring maintenance are displayed in the order of priority, and the productivity can be improved by efficiently performing the maintenance of the equipment elements. Can be done.

Here, an example of a maintenance recommended feeder list, which is a maintenance recommended equipment element list of the tape feeder 16, will be described with reference to FIG. In the maintenance recommended feeder list, the "feeder number" for specifying the tape feeder 16, the "part number" for specifying the component D supplied by the tape feeder 16, and the component mounting machines M1 to M3 to which the tape feeder 16 is mounted are specified. The "device number", the "feeder address" for specifying the position of the tape feeder 16 mounted on the feeder base 17a, and the "feeder position" for specifying the position of the carriages 17 mounted on the component mounting machines M1 to M3 are included.

Further, the maintenance recommended feeder list includes the "cumulative adsorption number", which is the total number of adsorptions of the component D supplied by the tape feeder 16 and adsorbed by the adsorption nozzle 15 during the analysis target period (for example, one week), and the analysis target period. Includes the "cumulative error count", which is the total number of work errors related to the tape feeder 16 that occurred in, and the "cumulative error rate" obtained by dividing the cumulative error count by the cumulative adsorption count. In addition, the maintenance recommended feeder list includes the "number of adsorption errors" which is the total number of adsorption errors, the "number of recognition errors" which is the total number of recognition errors, and the "number of implementation errors" which is the total number of implementation errors. The total of the number of adsorption errors, the number of recognition errors, and the number of mounting errors is the cumulative number of errors.

It is not necessary to include all of the number of adsorption errors, the number of recognition errors, and the number of mounting errors in the breakdown of the cumulative number of errors. That is, the cumulative number of errors includes at least one of a suction error by the suction nozzle 15 mounted on the mounting head 14, a recognition error of the component D by the component recognition camera 21, and a mounting error by the mounting head 14. Just do it.

In FIG. 5, the maintenance recommended feeder list is ordered in descending order of the cumulative number of errors. In addition, the feeder number, part number, device number, and feeder that specify the tape feeders 16 (here, 5 units) that are determined to be "maintenance required" by the maintenance determination unit 60 when the error rate for the latest 2 days is equal to or higher than the warning error rate. The addresses and feeder positions are shaded. The person in charge of the factory F who has been notified of the maintenance recommended feeder list can efficiently perform the maintenance work by performing the maintenance work on the shaded tape feeder 16 which requires maintenance in order from the top.

In FIG. 3, the display processing unit 62 executes a display process for displaying the maintenance recommended equipment element list created by the list creation unit 61 on the display unit 54. That is, the display unit 54 displays information on the equipment element determined to require maintenance. Then, the list creation unit 61, the display processing unit 62, and the display unit 54 order the information of the equipment elements having a large number of errors, and the information of the equipment elements determined to require maintenance including the number of errors and the fact that maintenance is required. It becomes a notification means for notifying. As the configuration of the equipment element maintenance analysis system 1, the maintenance management PC 5 is arranged in the factory F, and the display unit 54 arranged in the factory F displays the information of the equipment element determined to be maintenance required, and the factory. Information on equipment elements requiring maintenance may be transmitted to the person in charge of F.

Next, with reference to FIG. 6, the equipment element maintenance analysis method for analyzing the necessity of maintenance of the equipment element by the equipment element maintenance analysis system 1 will be described. First, the history information acquisition unit 58 of the maintenance management PC 5 is the operation history information of the component mounting machines M1 to M3 (manufacturing equipment) constituting the component mounting line L1 installed in the factory F from the line management PC 3 installed in the factory F. Is acquired at a predetermined timing such as once a day (ST1: Operation history information acquisition process). The acquired operation history information is stored in the equipment information storage unit 56.

When the operation history information acquisition process (ST1) is repeated a predetermined number of times (for example, 7 times) to acquire the operation history information for a predetermined analysis target period (for example, 1 week) (Yes in ST2), the error rate calculation unit 59 performs the operation history. Based on the number of work error errors related to the equipment elements included in the information, the error rate in the latest predetermined period (for example, the latest 2 days) of the acquired operation history information is calculated (ST3: Latest error rate calculation). Process). Next, the maintenance determination unit 60 calculates the cumulative number of errors during the analysis target period (ST4: cumulative error count calculation process), and among the equipment elements with a large number of errors, the latest error rate is equal to or higher than the predetermined value (warning error rate). It is determined that the equipment element requires maintenance (ST5: maintenance necessity determination process). This makes it possible to appropriately analyze the necessity of maintenance of equipment elements.

In FIG. 6, the list creation unit 61 orders the information of the equipment elements having a large number of errors, and the mail server 6 includes the information of the equipment elements determined to require maintenance including the number of errors and the fact that maintenance is required. Is transmitted to notify (ST6: notification process). In the notification step (ST6), the display processing unit 62 may display information on the equipment element determined to require maintenance, including the number of errors and the fact that maintenance is required, on the display unit 54 to notify the display unit 54. .. As a result, it is possible to notify the person in charge of the factory F of the information in which the equipment elements requiring maintenance are displayed in the order of priority.

As described above, the equipment element maintenance analysis system 1 of the present embodiment is related to the history information acquisition unit 58 that acquires the operation history information of the manufacturing equipment at a predetermined timing, and the equipment element included in the operation history information. An error rate calculation unit 59 that calculates an error rate based on the number of errors, a maintenance determination unit 60 that determines the necessity of maintenance of equipment elements, and a notification means that notifies information of equipment elements that are determined to require maintenance. I have.

Then, the error rate calculation unit 59 calculates the error rate in the latest predetermined period in the operation history information, and the maintenance determination unit 60 sets the latest error rate to a predetermined value (warning) among the equipment elements having a large number of errors. It is determined that the equipment elements having the error rate) or higher are judged to require maintenance, and the notification means orders the information of the equipment elements having a large number of errors and notifies the information including the number of errors and the fact that maintenance is required. This makes it possible to appropriately analyze the necessity of maintenance of equipment elements. Further, the support center S can analyze the necessity of maintenance by using appropriate information from the information sent from the factory F in a large amount.

Although the above description has been made using the tape feeder 16 as the equipment element for which the necessity of maintenance is determined, the equipment element for which the necessity of maintenance is determined is not limited to the tape feeder 16. For example, by calculating the cumulative number of errors and the latest error rate based on the number of error of the work error related to the suction nozzle 15 or the mounting head 14, and determining the necessity of maintenance, the suction nozzle 15 or the mounting head 14 can be used. The necessity of maintenance can also be analyzed. Further, even if the operation history information cannot be acquired on all the days of the analysis target period, the latest error rate may be calculated from the latest date among the acquired dates. Further, in the above, the operation history information is collectively analyzed for each day, but the operation history information may be collectively analyzed for each production lot.

The equipment element maintenance analysis system and the equipment element maintenance analysis method of the present invention have an effect that the necessity of maintenance of equipment elements can be appropriately analyzed, and are useful in the field of mounting components on a substrate.

1 Equipment element maintenance analysis system 6 Mail server (communication department)
14 Mounting head (equipment element)
16 Tape feeder (parts supply equipment, equipment elements)
21 Parts recognition camera B Circuit board D Parts M1 to M3 Parts mounting machine (manufacturing equipment)

Claims (8)

A history information acquisition unit that acquires operation history information of manufacturing equipment that manufactures products at a predetermined timing by attaching at least one equipment element.
An error rate calculation unit that calculates an error rate based on the number of errors related to the equipment element included in the operation history information, and an error rate calculation unit.
A maintenance determination unit that determines the necessity of maintenance of the equipment element based on the error rate, and
A list creation unit that orders information on equipment elements with a large number of errors and creates a list of recommended maintenance equipment elements that includes the number of errors and the fact that maintenance is required.
An equipment element maintenance analysis system including a display processing unit for displaying the maintenance recommended equipment element list. The equipment element maintenance analysis system according to claim 1, wherein the maintenance determination unit determines that maintenance is required for the equipment element having an error rate of a predetermined value or more among the equipment elements having a large number of errors. The equipment element maintenance analysis system according to claim 1 or 2, which is arranged in a factory provided with the manufacturing equipment and further includes a display unit for displaying the maintenance recommended equipment element list. The equipment element is a component supply device that supplies components, and is a component supply device.
The manufacturing equipment is a component mounting device that sucks a component supplied from the component supply device with a mounting head, recognizes the lower surface of the adsorbed component with a component recognition camera, and mounts the recognized component on a circuit board. hand,
The equipment according to any one of claims 1 to 3, wherein the number of errors includes at least one of a suction error by the mounting head, a recognition error by the component recognition camera, and a mounting error by the mounting head. Element maintenance analysis system. It is an equipment element maintenance analysis method that analyzes the necessity of maintenance of at least one equipment element attached to the manufacturing equipment that manufactures the product.
The operation history information of the manufacturing equipment is acquired at a predetermined timing, and the operation history information is acquired.
The error rate is calculated based on the number of errors related to the equipment element included in the operation history information.
An equipment element maintenance analysis method for ordering information on equipment elements having a large number of errors, creating a maintenance recommended equipment element list including the number of errors and the fact that maintenance is required, and displaying the maintenance recommended equipment element list. The equipment element maintenance analysis method according to claim 5, wherein among the equipment elements having a large number of errors, the equipment element having an error rate of a predetermined value or more is determined to require maintenance. The equipment element maintenance analysis method according to claim 5 or 6, further comprising displaying the maintenance recommended equipment element list, which is arranged in a factory provided with the manufacturing equipment. The equipment element is a component supply device that supplies components, and is a component supply device.
The manufacturing equipment is a component mounting device that sucks a component supplied from the component supply device with a mounting head, recognizes the lower surface of the adsorbed component with a component recognition camera, and mounts the recognized component on a circuit board. hand,
The equipment according to any one of claims 5 to 7, wherein the number of errors includes at least one of a suction error by the mounting head, a recognition error by the component recognition camera, and a mounting error by the mounting head. Element maintenance analysis method.

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