FEEDER MAINTENANCE ANALYSIS SYSTEM AND FEEDER MAINTENANCE ANALYSIS METHOD

Abstract

To provide a feeder maintenance analysis system and a feeder maintenance analysis method that can appropriately analyze the necessity of the maintenance of a feeder that is a facility element.SOLUTION: A feeder maintenance analysis system comprises: a history information acquisition unit that acquires, at a predetermined timing, operation history information of a mounting device that produces a mounting substrate; an error rate calculation unit that calculates an error rate based on the number of times of errors related to a feeder provided on the mounting device included in the operation history information; a maintenance determination unit that determines the necessity of the maintenance of the feeder based on the error rate; and a display processing unit that displays information on a maintenance recommended feeder for which maintenance is determined to be necessary. The operation history information includes information on the feeder related to a supply error that is detected based on an image obtained by picking up from above a component supply position where a component is supplied by the feeder.SELECTED DRAWING: Figure 6

Description

[Technical field]

[0001] The present invention relates to a feeder maintenance analysis system and a feeder maintenance analysis method for analyzing the necessity of maintenance of equipment elements (feeders) attached to manufacturing equipment that manufactures products. [Background technology]

[0002] Manufacturing equipment such as component mounters that manufacture products are used with replaceable equipment elements that are selected and installed according to the product. Component mounters that manufacture mounted circuit boards with electronic circuit components attached to them are used with component supply devices and other equipment elements that supply electronic circuit components. As the equipment elements are used for an extended period of time, the built-in components can wear out and become distorted, which can lead to malfunctions such as work errors.

[0003] Therefore, maintenance work including cleaning of equipment elements, adjustment of reference positions, and repair work such as part replacement is performed at a predetermined maintenance timing (for example, Patent Document 1). In the maintenance method described in Patent Document 1, the operating status of each component mounter is monitored, and when the number of component feeds or the number of feed errors of a component feeder attached to a component mounter exceeds a set number, it is determined that the component feeder requires maintenance. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2004-140162 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, in Patent Document 1, even if maintenance is not currently required because a sudden error caused by dirt or the like is naturally recovered from, or because an operator has performed preventive maintenance, it is determined that maintenance is required when the cumulative number of errors reaches a predetermined number, so there is room for further improvement.

[0006] Therefore, an object of the present invention is to provide a feeder maintenance analysis system and a feeder maintenance analysis method that can appropriately analyze the necessity for maintenance of a feeder, which is an equipment element. [Means for solving the problem]

[0007] The feeder maintenance analysis system of the present invention comprises a history information acquisition unit that acquires operation history information of a mounting device that produces mounting boards at a predetermined timing, an error rate calculation unit that calculates an error rate based on the number of errors related to a feeder equipped with the mounting device that is included in the operation history information, a maintenance judgment unit that judges whether maintenance is required for the feeder based on the error rate, and a display processing unit that displays information on feeders that are recommended for maintenance and that have been judged to require maintenance, wherein the operation history information includes information on the feeder related to a supply error detected based on an image captured from above of a component supply position to which components are supplied by the feeder.

[0008] The feeder maintenance analysis method of the present invention is a feeder maintenance analysis method for analyzing whether or not maintenance is required for at least one feeder attached to a mounting device that produces mounting boards, and includes the steps of: acquiring, at a predetermined timing, operation history information including information on the feeder related to a supply error detected based on an image taken from above of a component supply position to which components are supplied by the feeder; calculating an error rate based on the number of errors including at least the number of supply errors related to the feeder included in the operation history information; determining whether or not maintenance is required for the feeder based on the error rate; and displaying in order information about maintenance-recommended feeders determined to require maintenance. Effect of the Invention

[0009] According to the present invention, it is possible to appropriately analyze whether or not maintenance of a feeder, which is an equipment element, is required. [Brief description of the drawings]

[0010] [Figure 1] FIG. 1 is a configuration diagram of a facility element maintenance analysis system according to an embodiment of the present invention; [Diagram 2] FIG. 1 is a configuration explanatory diagram of a component mounter according to an embodiment of the present invention; [Diagram 3] FIG. 1 is a block diagram showing a configuration of a processing system of a facility element maintenance analysis system according to an embodiment of the present invention. [Figure 4] FIG. 1A is an explanatory diagram of an example of operation history information of a tape feeder determined to require maintenance by an equipment element maintenance analysis system according to an embodiment of the present invention; FIG. 1B is an explanatory diagram of an example of operation history information of a tape feeder determined to not require maintenance; [Diagram 5] FIG. 1 is a diagram showing an example of a maintenance recommendation feeder list notified by the facility element maintenance analysis system according to an embodiment of the present invention. [Figure 6] FIG. 1 is a flow diagram of a facility element maintenance analysis method according to an embodiment of the facility element maintenance analysis system of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] An embodiment of the present invention will be described in detail below with reference to the drawings. The configurations, shapes, etc. described below are examples for explanation, and can be appropriately changed according to the specifications of the equipment component maintenance analysis system, the component mounting line, the component mounting machine, the component supply device, etc. In the following, the same reference numerals are used for corresponding elements in all the drawings, and duplicated explanations are omitted. In FIG. 2 and some parts described later, the X direction of the board transport direction (the direction perpendicular to the paper surface in FIG. 2) and the Y direction orthogonal to the board transport direction (the left-right direction in FIG. 2) are shown as two axial directions orthogonal to each other in the horizontal plane. In addition, the Z direction (the up-down direction in FIG. 2) is shown as the height direction orthogonal to the horizontal plane.

[0012] First, the configuration of an equipment element maintenance analysis system 1 will be described with reference to Fig. 1. The equipment element maintenance analysis system (feeder 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. The factory F is provided with a component mounting line L1 configured by connecting a plurality of component mounters M1 to M3. The component mounting line L1 has a function of manufacturing a mounted board by sequentially mounting electronic circuit components (hereinafter referred to as "components D"; see Fig. 2) on a circuit board B (see Fig. 2) by the component mounters M1 to M3.

[0013] Each of the component mounters M1-M3 is connected to a line management PC3 via an in-house communication network 2 such as a LAN (Local Area Network). The factory F is also provided with a mail receiving device 4 that receives e-mails sent from the support center S. Note that a plurality of component mounting lines may be installed in the factory F. Also, the number of component mounters M1-M3 constituting the component mounting line L1 does not need to be three, and may be one, two, four or more.

[0014] In FIG. 1, the support center S is located at a position where it can efficiently analyze the necessity for maintenance of equipment elements for multiple factories F (customers) and provide various types of support to personnel in 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 an in-house communication network 7 such as a LAN. The line management PC 3 and the maintenance management PC 5 exchange information via an external 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 an external communication network 9. The external communication network 8 and the external communication network 9 may share the same external communication network.

[0015] Next, the configuration of component mounters M1 to M3 will be described with reference to Fig. 2. The component mounters M1 to M3 have the same configuration, and only the component mounter M1 will be described below. The component mounter M1 has a function of mounting components D onto a circuit board B. A board transport mechanism 12 provided on the upper surface of a base 11 transports the circuit board B in the X direction, positions it, and holds it. A head moving mechanism 13 moves a mounting head 14 mounted via a plate 13a in the X and Y directions. A suction nozzle 15 is attached to the lower end of the mounting head 14.

[0016] A plurality of tape feeders (feeders) 16 are attached to a feeder base 17a on the upper part of a carriage 17 coupled to the base 11 on the side of the board transport mechanism 12, lined up in the X direction. A plurality of slots for mounting the tape feeders 16 are provided in the feeder base 17a, and a feeder address is set for each slot. The component mounter M1 can mount the carriage 17 at two feeder positions, the front side and the rear side. The component mounter M1 can identify the mounting position of the tape feeder 16 by the feeder position (front side, rear side) and the feeder address.

[0017] Carrier tape 18, which stores components D to be supplied to component mounter M1, is wound and stored on reel 19 and held on dolly 17. Carrier tape 18 inserted into tape feeder 16 is pitch-fed at regular intervals by tape feed mechanism 16a built into tape feeder 16. As a result, components D stored on carrier tape 18 are sequentially supplied to component supply port 16b provided on the top of tape feeder 16.

[0018] In the component mounting operation, mounting head 14 is moved above tape feeder 16 by head moving mechanism 13, and picks up component D supplied to component supply port 16b of tape feeder 16 by vacuum suction with suction nozzle 15 (arrow a). Mounting head 14 holding component D is moved above circuit board B held by board transport mechanism 12 by head moving mechanism 13, and mounts component D at a predetermined component mounting position Ba on circuit board B (arrow b).

[0019] In FIG. 2, a board recognition camera 20 with an optical axis direction facing downward is attached to the plate 13a. The board recognition camera 20 moves in the X and Y directions together with the mounting head 14 by the head moving mechanism 13. The board recognition camera 20 moves above the tape feeder 16 and captures an image of the component D supplied to the component supply port 16b. The captured image is recognized, and a supply position deviation amount of the supplied component D from the expected regular supply position 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. In addition, 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.

[0020] 2, the mounting head 14 is equipped with a flow sensor 14a that measures the flow rate of air flowing in from the suction nozzle 15. When the suction nozzle 15 normally picks up the component D, the amount of air flowing in from the suction nozzle 15 decreases, and the vacuum pressure of the suction nozzle 15 decreases. On the other hand, if a suction error occurs, such as the suction nozzle 15 being unable to hold the component D or picking up the component in an abnormal position, air continues to flow in from the suction nozzle 15, and the vacuum pressure of the suction nozzle 15 does not decrease.

[0021] Therefore, the occurrence of a suction error (suction error) can be detected based on the measurement result of the air flow rate by the flow rate sensor 14a. Note that a vacuum gauge may be provided instead of the flow rate sensor 14a, and the occurrence of a suction error (suction error) may be determined based on the measurement result of the vacuum pressure by the vacuum gauge. Also, by measuring the flow rate of air flowing in from the suction nozzle 15 after component mounting using the flow rate sensor 14a, it is possible to detect a mounting error in which the mounting head 14 returns home without being able to mount the component D on the circuit board B.

[0022] A component recognition camera 21 with its optical axis directed upward is attached to the upper surface of the base 11 between the board transport mechanism 12 and the tape feeder 16. The component recognition camera 21 captures an image of the underside of the component D held by the suction nozzle 15 (or the suction nozzle 15 that failed to hold the component D) when the suction nozzle 15 that picked up the component D passes above. The captured image is recognized to determine whether the posture of the component D held by the suction nozzle 15 is normal or abnormal, or whether a recognition error has occurred that prevents the component D that should be held by the suction nozzle 15 from being recognized. The component recognition camera 21 may capture an image of the side surface of the component D in addition to the underside.

[0023] The imaging result is subjected to image recognition, and an amount of pickup position deviation of component D picked up by suction nozzle 15 from the expected normal pickup position is calculated. When component D is mounted at component mounting position Ba on circuit board B, mounting position correction and mounting attitude correction are performed based on the amount of pickup position deviation.

[0024] The mounting head 14, suction nozzle 15, and tape feeder 16 are appropriately selected according to the type of component D to be mounted on the circuit board B, and are attached to the component mounter M1. In this way, the mounting head 14 that mounts the component D on the circuit board B, the suction nozzle 15 that is attached to the mounting head 14 and picks up the component D, and the tape feeder 16 (component supply device) that supplies the component D to the mounting head 14 are equipment elements attached to the component mounter M1. The component mounter M1 is a manufacturing facility to which at least one equipment element is attached, picks up the component D supplied from the component supply device with the mounting head 14, recognizes the bottom surface of the picked-up component D with the component recognition camera 21, and mounts the recognized component D on the circuit board B to manufacture a product (mounted board).

[0025] Next, the configuration of the processing system of the facility element maintenance analysis system 1 will be described with reference to FIG. 3. The component mounters M1 to M3 have the same configuration, and the component mounter M1 will be described below. In FIG. 3, the component mounter M1 includes a mounting control unit 31. The mounting control unit 31 includes a mounting memory unit 32, a recognition processing unit 35, a mounting operation processing unit 36, and an on-premise communication unit 37. The on-premise communication unit 37 transmits and receives data to and from the other component mounters M2 and M3 and the line management PC 3 via the on-premise communication network 2. The mounting memory unit 32 is a storage device, and includes a mounting data memory unit 33 and a parameter memory unit 34. The mounting data memory unit 33 stores data such as the component type and size of the component D to be mounted on the circuit board B, and the component mounting position Ba (XY coordinates) for each type of mounting board to be manufactured.

[0026] The recognition processing unit 35 performs image recognition on the imaging result of the component supply port 16b of the tape feeder 16 captured by the board recognition camera 20, calculates a correction value for the suction position of the suction nozzle 15, and stores the correction value in the parameter storage unit 34. The recognition processing unit 35 also performs image recognition on the imaging result of the suction nozzle 15 picking up the component D captured by the component recognition camera 21, calculates correction values ​​for the component mounting position Ba and mounting posture when mounting the component D on the circuit board B, and stores the correction values ​​in the parameter storage unit 34. The recognition processing unit 35 also performs image recognition on the imaging result to detect supply errors and recognition errors.

[0027] 3, mounting operation processing unit 36 ​​controls board transport mechanism 12, head moving mechanism 13, mounting head 14, and tape feeder 16 to execute component mounting operation based on various data stored in mounting data storage unit 33 and various correction values ​​stored in parameter storage unit 34. Furthermore, when mounting operation processing unit 36 ​​detects a work error (described later) during component mounting operation, it transmits the time of occurrence of the work error, the details of the work error, etc. to line management PC 3.

[0028] Examples of work errors that can be detected include suction errors where suction nozzle 15 is unable to pick up component D, recognition errors where component recognition camera 21 is unable to recognize component D picked up and held by suction nozzle 15, mounting errors where mounting head 14 is unable to mount component D on circuit board B and takes it back, and supply errors where board recognition camera 20 is unable to recognize component D supplied by tape feeder 16 (component supply device). Note that if component mounting line L1 is equipped with a mounting inspection device that inspects components D mounted on circuit board B in addition to component mounters M1 to M3, mounting errors may be detected based on the presence or absence of components D inspected by the mounting inspection device and the amount of positional deviation.

[0029] 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-premise communication unit 45, and an off-premise communication unit 46. The on-premise communication unit 45 transmits and receives data to and from the component mounters M1 to M3 via the on-premise communication network 2. The off-premise communication unit 46 transmits and receives data to and from the maintenance management PC 5 installed in the support center S via the off-premise communication network 8. The line storage unit 42 is a storage device, and includes an operation history storage unit 43.

[0030] The operation information collecting unit 44 associates the occurrence time of the work error and the content of the work error transmitted from the component mounters M1 to M3 with information identifying the equipment element related to the work error, and stores the information as operation history information in the operation history storage unit 43. Furthermore, the operation information collecting unit 44 collects the number of times components D were picked up and mounted for each suction nozzle 15 at a predetermined timing such as every hour, in addition to the timing when the work error occurred, and stores the information as operation history information in the operation history storage unit 43 in association with information identifying the equipment element.

[0031] 3, the maintenance management PC 5 includes a maintenance processing unit 51. The maintenance processing unit 51 includes an outside communication unit 52, an inside communication unit 53, a display unit 54, a maintenance memory unit 55, a history information acquisition unit 58, an error rate calculation unit 59, a maintenance judgment unit 60, a list creation unit 61, and a display processing unit 62. The maintenance memory unit 55 is a storage device, and includes an equipment information memory unit 56 and an analysis result memory unit 57. The outside communication unit 52 transmits and receives data to and from the line management PC 3 installed in the factory F via the outside communication network 8. The inside communication unit 53 transmits and receives data to and from the mail server 6 via the inside 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.

[0032] 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 work each day or when a worker is changed in the factory F, and stores the information in the equipment information storage unit 56 as equipment information for each equipment element. The history information acquisition unit 58 may acquire operation history information for each day that is updated from the previous acquisition, or may acquire operation history information for a predetermined analysis period, such as one week, all at once. In other words, the equipment information storage unit 56 needs only to store information for an analysis period that is sufficient for analyzing the necessity of maintenance for each equipment element.

[0033] 3, the error rate calculation unit 59 calculates an error rate based on the number of errors and the number of pick-ups of work errors related to the equipment elements included in the operation history information. In this case, the error rate calculation unit 59 calculates the error rate for each 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 elements is required, based on the operation history information stored in the equipment information storage unit 56 and the analysis results, such as the error rate, stored in the analysis result storage unit 57. More specifically, the maintenance determination unit 60 accumulates the number of errors of work errors related to the equipment elements that occurred during the analysis target period, such as one week, and determines that, among the equipment elements with a large number of errors, the equipment elements with the latest error rate for a predetermined period, such as the latest two days, that are equal to or higher than the warning error rate (predetermined value) require maintenance.

[0034] Here, with reference to Figures 4(a) and 4(b), an example of the necessity of maintenance determined by maintenance determination unit 60 will be described. Figure 4(a) shows a graph of the cumulative number of errors (bar graph) over seven operating days for tape feeders 16 determined to require maintenance, and Figure 4(b) shows a graph of the error rate (line graph) for each operating day for tape feeders 16 determined not to require maintenance. The cumulative number of errors shows the accumulated number of work errors related to the tape feeder 16 from the seven operating days prior. The error rate shows the error rate of work errors related to the tape feeder 16 for each operating day, with black circles indicating the error rate is equal to or higher than the warning error rate and white circles indicating the error rate is lower than the warning error rate.

[0035] The error rate of the tape feeder 16 shown in FIG. 4(a) is lower than the warning error rate seven working days ago, but exceeds the warning error rate from six working days ago onward. That is, the error rates for the most recent two days (two working days ago and one working day ago) are equal to or higher than the warning error rate, respectively, so the maintenance judgment unit 60 judges that "maintenance is required." The error rate of the tape feeder 16 shown in FIG. 4(b) suddenly exceeds the warning error rate six working days ago and five working days ago, but falls below the warning error rate from four working days onward, as the fault is resolved by removing the debris causing the error, for example. Therefore, the error rate for the most recent two days is not equal to or higher than the warning error rate, so the maintenance judgment unit 60 judges that "maintenance is not required."

[0036] In FIG. 3, a list creation unit 61 creates a list of equipment elements requiring maintenance (a list of equipment elements requiring maintenance) based on the operation history information stored in the equipment information storage unit 56, the analysis results such as error rates stored in the analysis result storage unit 57, and the necessity of maintenance determined by the maintenance determination unit 60.

[0037] The created list of equipment elements recommended for maintenance is stored in the analysis result storage unit 57, and is also sent as an e-mail via the mail server 6 to the mail receiving device 4 installed in the factory F. That is, the mail server 6 serves as a communication unit that sends e-mail including information on the equipment elements determined to require maintenance. The list creation unit 61 and the mail server 6 (communication unit) then serve as a notification means that arranges the information on equipment elements with a high number of errors in order, and notifies the information on the equipment elements determined to require maintenance, including the number of errors and the fact that maintenance is required. This makes it possible to convey information in which the equipment elements requiring maintenance are displayed in order of priority to the person in charge at the factory F, and by efficiently performing maintenance on the equipment elements, productivity can be improved.

[0038] 5, an example of a maintenance recommended feeder list, which is a list of equipment elements that recommend maintenance for tape feeder 16, will be described. The maintenance recommended feeder list includes a "feeder number" that identifies tape feeder 16, a "part number" that identifies parts D supplied by tape feeder 16, a "device number" that identifies component mounters M1 to M3 to which tape feeder 16 is attached, a "feeder address" that identifies the position of tape feeder 16 attached to feeder base 17a, and a "feeder position" that identifies the position of cart 17 attached to component mounters M1 to M3.

[0039] The maintenance recommended feeder list also includes the "cumulative pickup count," which is the total number of times that the components D were picked up by the suction nozzle 15 after being supplied by the tape feeder 16 during the analysis period (e.g., one week), the "cumulative error count," which is the total number of work errors related to the tape feeder 16 that occurred during the analysis period, and a "cumulative error rate" obtained by dividing the cumulative error count by the cumulative pickup count. The maintenance recommended feeder list also includes the "pickup error count," which is the total number of pick-up errors, the "recognition error count," which is the total number of recognition errors, and the "mounting error count," which is the total number of mounting errors. The total of the pick-up error count, recognition error count, and mounting error count is the cumulative error count.

[0040] The breakdown of the accumulated number of errors does not need to include all of the pickup errors, recognition errors, and mounting errors. In other words, the accumulated number of errors needs to include at least the number of pickup errors by the pickup nozzle 15 attached to the mounting head 14, the recognition errors of the component D by the component recognition camera 21, and the mounting errors by the mounting head 14.

[0041] 5, the maintenance recommended feeder list is ordered in descending order of the number of accumulated errors. Also, the feeder numbers, part numbers, device numbers, feeder addresses, and feeder positions that identify the tape feeders 16 (here, five units) that have had an error rate over the most recent two days equal to or greater than the warning error rate and have been determined by the maintenance determination unit 60 to be "maintenance required" are shaded. The person in charge at factory F who has been notified of the maintenance recommended feeder list can perform maintenance work efficiently by performing maintenance work on the shaded tape feeders 16 requiring maintenance, starting from the top.

[0042] 3, the display processing unit 62 executes a display process for displaying the list of equipment elements recommended for maintenance created by the list creation unit 61 on the display unit 54. That is, the display unit 54 displays information on the equipment elements determined to require maintenance. The list creation unit 61, the display processing unit 62, and the display unit 54 then function as a notification means for ordering information on equipment elements with a high number of errors and notifying information on the equipment elements determined to require maintenance, including the number of errors and the fact that maintenance is required. Note that the equipment element maintenance analysis system 1 may be configured such that the maintenance management PC 5 is disposed in the factory F, and information on the equipment elements determined to require maintenance is displayed on the display unit 54 disposed in the factory F, thereby transmitting information on the equipment elements requiring maintenance to a person in the factory F.

[0043] Next, an equipment element maintenance analysis method for analyzing the necessity of maintenance of equipment elements using the equipment element maintenance analysis system 1 will be described with reference to Fig. 6. First, the history information acquisition unit 58 of the maintenance management PC 5 acquires operation history information of component mounters 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 at a predetermined timing such as once a day (ST1: operation history information acquisition step). The acquired operation history information is stored in the equipment information storage unit 56.

[0044] When the operation history information acquisition step (ST1) is repeated a predetermined number of times (e.g., seven times) to acquire operation history information for a predetermined analysis period (e.g., one week) (Yes in ST2), the error rate calculation unit 59 calculates the error rate for the latest predetermined period (e.g., the latest two days) of the acquired operation history information based on the number of errors of work errors related to the equipment elements included in the operation history information (ST3: latest error rate calculation step). Next, the maintenance judgment unit 60 calculates the cumulative number of errors for the analysis period (ST4: cumulative error number calculation step), and judges that the equipment elements with the most frequent errors and whose latest error rate is equal to or greater than a predetermined value (warning error rate) require maintenance (ST5: maintenance necessity judgment step). This allows the necessity of maintenance of the equipment elements to be appropriately analyzed.

[0045] 6, the list creation unit 61 arranges information about equipment elements with a high number of errors in order, and the mail server 6 sends an e-mail including information about the equipment elements determined to require maintenance, including the number of errors and a notice that maintenance is required, to notify the user (ST6: notification step). Note that in the notification step (ST6), the display processing unit 62 may display information about the equipment elements determined to require maintenance, including the number of errors and a notice that maintenance is required, on the display unit 54 to notify the user. This makes it possible to notify the person in charge at factory F of information about the equipment elements requiring maintenance, displayed in order of priority.

[0046] As described above, the equipment element maintenance analysis system 1 of this embodiment includes a history information acquisition unit 58 that acquires operation history information of the manufacturing equipment at a predetermined timing, an error rate calculation unit 59 that calculates an error rate based on the number of errors related to the equipment elements included in the operation history information, a maintenance determination unit 60 that determines whether or not maintenance is required for the equipment elements, and a notification means that notifies information about the equipment elements determined to require maintenance.

[0047] The error rate calculation unit 59 calculates the error rate for the latest specified period from the operation history information, and the maintenance judgment unit 60 judges that the equipment elements with the most frequent errors, whose latest error rate is equal to or greater than a specified value (warning error rate), require maintenance, and the notification means orders the information on the equipment elements with the most frequent errors and notifies the equipment elements of the number of errors and the fact that maintenance is required. This makes it possible to appropriately analyze whether or not the equipment elements require maintenance. Furthermore, the support center S can analyze whether or not maintenance is required by using appropriate information from the large amount of information sent from the factory F.

[0048] In the above description, the tape feeder 16 is used as an equipment element for which the necessity of maintenance is determined, but the equipment element for which the necessity of maintenance is determined is not limited to the tape feeder 16. For example, the necessity of maintenance of the suction nozzle 15 or the mounting head 14 can be analyzed by calculating the cumulative number of errors and the latest error rate based on the number of work errors related to the suction nozzle 15 or the mounting head 14 and determining whether maintenance is required. Even if operation history information cannot be obtained for all days in the analysis target period, the latest error rate may be calculated from the latest date among the obtained dates. In the above description, the operation history information is analyzed by collecting and analyzing the information by day, but the operation history information may be analyzed by collecting and analyzing the information by production lot. [Industrial Applicability]

[0049] The equipment element maintenance analysis system (feeder maintenance analysis system) and equipment element maintenance analysis method (feeder maintenance analysis method) of the present invention have the effect of being able to appropriately analyze the need for maintenance of feeders, which are equipment elements, and are useful in fields where components are mounted on boards. [Explanation of symbols]

[0050] 1. Equipment Element Maintenance Analysis System (Feeder Maintenance Analysis System) 6 Mail Server (Communication Section) 14 Mounting head (equipment element) 16 Tape feeder (feeder, part supply device, equipment element) 21 Parts Recognition Camera B Circuit board D parts M1~M3 Component mounting machines (manufacturing equipment)

Claims

1. a history information acquisition unit that acquires operation history information of a mounting device that produces mounting boards at a predetermined timing; an error rate calculation unit that calculates an error rate based on the number of errors related to a feeder included in the mounting device, which is included in the operation history information; a maintenance determination unit that determines whether or not maintenance of the feeder is required based on the error rate; A display processing unit that displays information about the maintenance recommended feeder determined to require maintenance, A feeder maintenance analysis system, wherein the operation history information includes information about the feeder related to a supply error detected based on an image taken from above of a component supply position where components are supplied by the feeder.

2. 2. The feeder maintenance analysis system of claim 1, wherein the display processing unit displays information about a plurality of feeders having a high number of errors, arranges the plurality of feeders in order of the number of errors, and displays whether or not maintenance is required for each feeder.

3. The feeder maintenance analysis system according to claim 2 , wherein the display processing unit displays the number of times the error has occurred for each of the feeders.

4. The feeder maintenance analysis system according to claim 1 , wherein the error rate calculation unit calculates an occurrence frequency of the supply error in a most recent predetermined period as the error rate.

5. The feeder maintenance analysis system according to claim 1 , wherein the number of errors further includes a number of mounting errors in which components are not mounted on a board in a desired state.

6. A feeder maintenance analysis method for analyzing the necessity of maintenance of at least one feeder attached to a mounting device that produces mounted boards, comprising: acquiring operation history information at a predetermined timing, the operation history information including information on the feeder related to a supply error detected based on an image captured from above of a component supply position to which components are supplied by the feeder; Calculating an error rate based on a number of errors including at least a number of supply errors related to the feeder included in the operation history information; determining whether maintenance of the feeder is required based on the error rate; A feeder maintenance analysis method for displaying information on feeders recommended for maintenance that have been determined to require maintenance in an organized manner.

Images