JP7422285B2 - Equipment element maintenance analysis system and equipment element maintenance analysis method - Google Patents

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 installed in manufacturing equipment for manufacturing products.

Manufacturing equipment such as a component mounting machine that manufactures products is used with replaceable equipment elements selected and attached according to the product. 2. Description of the Related Art A component mounting machine that manufactures a circuit board with electronic circuit components mounted thereon as a product is used with a component supply device that supplies electronic circuit components as an equipment element attached thereto. As equipment elements are used for longer periods of time, the wear and distortion of built-in components increases, which can lead to malfunctions such as work errors.

Therefore, maintenance work including maintenance work such as cleaning and reference position adjustment of equipment elements, and repair work such as parts replacement is performed at predetermined maintenance timings (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 supplies or the number of supply errors of a component supply device attached to the component mounter exceeds a set number, the component is removed. It has been determined that the supply equipment requires maintenance.

Japanese Patent Application Publication No. 2004-140162

However, in Patent Document 1, even if maintenance is not currently required, the cumulative number of errors occurs due to natural recovery from sudden errors caused by dust or preventive maintenance by operators. Since it is determined that maintenance is required when the number of times exceeds a predetermined number, there is 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 that can appropriately analyze whether or not maintenance of equipment elements is necessary.

The equipment element maintenance analysis system of the present invention includes a history information acquisition unit that acquires at a predetermined timing operation history information of manufacturing equipment to which at least one equipment element is attached and that manufactures products; an error rate calculation unit that calculates an error rate based on the number of errors associated with the equipment element; a maintenance determination unit that determines whether maintenance is required for the equipment element based on the error rate; A list creation unit that creates a maintenance recommended equipment element list in which information on the equipment elements is ordered; and a display processing unit that displays the maintenance recommended equipment element list; The error rate calculation unit calculates the frequency of occurrence of the recognition error in the latest predetermined period as the error rate, including the number of times a recognition error occurs in a suction operation of sucking a component supplied from the component supply device.

The equipment element maintenance analysis method of the present invention is an equipment element maintenance analysis method for analyzing whether or not maintenance is required for at least one equipment element installed in manufacturing equipment that manufactures a product, and in which the operation history information of the manufacturing equipment is , calculates an error rate based on the number of errors related to the equipment element included in the operation history information, determines whether or not maintenance of the equipment element is necessary based on the error rate, and determines whether maintenance is required. A maintenance recommended equipment element list is created in which information on the equipment elements determined to be ordered is created, the maintenance recommended equipment element list is displayed, and the operation history information is supplied from the parts supply device as the equipment element. The frequency of occurrence of the recognition error in the latest predetermined period is calculated as the error rate, including the number of times a recognition error occurs in the suction operation of picking up the component.

According to the present invention, it is possible to appropriately analyze whether or not maintenance of equipment elements is necessary.

Configuration explanatory diagram of an equipment element maintenance analysis system according to an embodiment of the present invention Configuration explanatory diagram of a component mounting machine according to an embodiment of the present invention A block diagram showing the configuration of a processing system of an equipment element maintenance analysis system according to an embodiment of the present invention (a) Explanatory diagram of an example of operation history information of a tape feeder determined to require maintenance by the equipment element maintenance analysis system according to an embodiment of the present invention (b) Operation history information of a tape feeder determined not to require maintenance An explanatory diagram of an example A diagram showing an example of a recommended maintenance feeder list notified by the equipment element maintenance analysis system according to an embodiment of the present invention Flowchart of an equipment element maintenance analysis method using an equipment element maintenance analysis system according to an embodiment of the present invention

An embodiment of the present invention will be described in detail below with reference to the drawings. The configuration, shape, etc. described below are examples for explanation, and can be changed as appropriate depending on the specifications of the equipment element maintenance analysis system, component mounting line, component mounting machine, component supply device, etc. Hereinafter, corresponding elements in all drawings will be denoted by the same reference numerals, and redundant explanation will be omitted. In FIG. 2 and some parts to be described later, two axes perpendicular to each other in the horizontal plane are the X direction of the substrate transport direction (perpendicular to the paper surface in FIG. 2), the Y direction perpendicular to the substrate transport direction (the left-right direction in FIG. ) is shown. Further, the Z direction (vertical direction in FIG. 2) is shown as a height direction perpendicular to the horizontal plane.

First, with reference to FIG. 1, the configuration of the equipment element maintenance analysis system 1 will be explained. The equipment element maintenance analysis system 1 includes 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 is installed, which is configured by connecting a plurality of component mounting machines M1 to M3. The component mounting line L1 has the function of manufacturing a mounted board by sequentially mounting electronic circuit components (hereinafter referred to as "components D", see FIG. 2) onto a circuit board B (see FIG. 2) using component mounting machines M1 to M3. have.

Each of the component mounting machines M1 to M3 is connected to a line management PC 3 via a local area communication network 2 such as a LAN (Local Area Network). Furthermore, the factory F is equipped 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. Further, the number of component mounting machines M1 to M3 that constitute the component mounting line L1 does not need to be three, and may be one, two, four or more.

In Figure 1, the support center S is established at a location where it can efficiently perform analysis of the need for maintenance of equipment elements for multiple factories F (customers), various types of support for the personnel in charge of each factory F, etc. . 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 local communication network 7 such as a LAN. The line management PC 3 and the maintenance management PC 5 exchange information via an off-premises 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 off-premises communication network 9. Note that the off-premises communication network 8 and the off-premises communication network 9 may share the same off-premises communication network.

Next, with reference to FIG. 2, the configuration of the component mounting machines M1 to M3 will be described. The component mounters M1 to M3 have similar configurations, and the component mounter M1 will be described below. The component mounting machine M1 has a function of mounting the component D on the circuit board B. A board transport mechanism 12 provided on the top surface of the base 11 transports, positions and holds the circuit board B in the X direction. 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 attached to the lower end of the mounting head 14 .

A plurality of tape feeders 16 are attached to a feeder base 17a on the upper part of a cart 17 connected to the base 11 on the side of the substrate transport mechanism 12 in a line in the X direction. The feeder base 17a is provided with a plurality of slots into which tape feeders 16 are mounted, and a feeder address is set for each slot. The component mounting machine M1 can mount the cart 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 based on the feeder position (front side, rear side) and feeder address.

A carrier tape 18 for storing the component D to be supplied to the component mounter M1 is held in the cart 17 while being wound around a reel 19. The carrier tape 18 inserted into the tape feeder 16 is pitch-fed at regular intervals by a tape feeding mechanism 16a built into the tape feeder 16. Thereby, the components D stored in the carrier tape 18 are sequentially supplied to the component supply port 16b provided at the upper part of the tape feeder 16.

In the component mounting operation, the mounting head 14 is moved above the tape feeder 16 by the head moving mechanism 13, and picks up the component D supplied to the component supply port 16b of the tape feeder 16 by vacuum suction using the suction nozzle 15 ( Arrow a). The mounting head 14 holding the component D moves above the circuit board B held by the board transport 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 board recognition camera 20 with its optical axis facing downward is attached to the plate 13a. The board recognition camera 20 moves integrally with the mounting head 14 in the X direction and the Y direction by the head moving mechanism 13. The board recognition camera 20 moves above the tape feeder 16 and images the component D supplied to the component supply port 16b. The imaging result is image-recognized, and the supply position deviation amount by which the supplied part D deviates from the expected regular supply position is calculated. Based on the calculated amount of supply position deviation, the suction position (stop position of the mounting head 14) when the suction nozzle 15 picks up the component D is corrected. Furthermore, 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 air flowing in from the suction nozzle 15. When the suction nozzle 15 successfully suctions the component D, the amount of air flowing through the suction nozzle 15 becomes smaller and the vacuum pressure of the suction nozzle 15 becomes lower. On the other hand, if a suction error occurs such that the suction nozzle 15 is unable to hold the component D or suctions it in an abnormal posture, air flows in from the suction nozzle 15 and the vacuum pressure of the suction nozzle 15 does not drop.

Therefore, it is possible to detect whether a suction error (suction error) has occurred based on the measurement result of the air flow rate by the flow rate sensor 14a. Note that a vacuum gauge may be provided in place of the flow rate 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. Furthermore, by measuring the flow rate of air flowing in from the suction nozzle 15 after the component is mounted using the flow rate sensor 14a, it is also possible to detect a mounting error in which the mounting head 14 is unable to mount the component D on the circuit board B and takes it home.

A component recognition camera 21 with its optical axis facing upward is attached to the upper surface of the base 11 between the substrate transport mechanism 12 and the tape feeder 16. The component recognition camera 21 images the bottom surface of the component D held by the suction nozzle 15 (or the suction nozzle 15 that could not hold the component D) when the suction nozzle 15 that picked up the component D passes above. . The imaging results are image-recognized to determine whether the posture of the part D held in the suction nozzle 15 is normal or abnormal, or if a recognition error has occurred in which the part D that is supposed to be held in the suction nozzle 15 cannot be recognized. It is determined whether Note that the component recognition camera 21 may also image the side surface of the component D in addition to the bottom surface.

Further, the imaging result is image recognized, and the amount of suction position deviation by which the component D suctioned by the suction nozzle 15 deviates from the expected normal suction position is calculated. When mounting the component D at the component mounting position Ba on the circuit board B, the mounting position correction and mounting posture correction are performed based on the amount of suction position deviation.

The mounting head 14, suction nozzle 15, and tape feeder 16 are appropriately selected depending on the type of component D to be mounted on the circuit board B, and are attached to the component mounting machine M1. In this way, the mounting head 14 mounts the component D on the circuit board B, the suction nozzle 15 attached to the mounting head 14 and sucking the component D, or the tape feeder 16 (component supply device) that supplies the component D to the mounting head 14. ) is a facility element attached to the component mounter M1. Then, the component mounter M1, on which at least one equipment element is attached, adsorbs the component D supplied from the component supply device with the mounting head 14, recognizes the lower surface of the adsorbed component D with the component recognition camera 21, and recognizes the component D. This is a manufacturing facility that mounts the component D on the circuit board B to manufacture a product (mounted board).

Next, with reference to FIG. 3, the configuration of the processing system of the equipment element maintenance analysis system 1 will be described. The component mounters M1 to M3 have similar configurations, and the component mounter M1 will be described below. In FIG. 3, the component mounter M1 includes a mounting control section 31. The mounting control section 31 includes a mounting storage section 32 , a recognition processing section 35 , a mounting operation processing section 36 , and a local communication section 37 . The local communication unit 37 sends and receives data to and from the other component mounting machines M2 and M3 and the line management PC3 via the local communication network 2. The mounting storage section 32 is a storage device, and includes a mounting data storage section 33 and a parameter storage section 34. The mounting data storage unit 33 stores data such as the 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.

The recognition processing unit 35 performs image recognition on the image taken by the board recognition camera 20 of the component supply port 16b of the tape feeder 16, calculates a correction value for the suction position of the suction nozzle 15, and stores it in the parameter storage unit 34. Further, the recognition processing unit 35 performs image recognition on the image taken by the suction nozzle 15 that picks up the component D by the component recognition camera 21, and determines the component mounting position Ba and mounting posture when mounting the component D on the circuit board B. A correction value is calculated and stored in the parameter storage unit 34. Further, the recognition processing unit 35 performs image recognition on the imaging result to detect supply errors and recognition errors.

In FIG. 3, the mounting operation processing section 36 controls the substrate transport mechanism 12, the head moving mechanism 13, and the mounting head based on various data stored in the mounting data storage section 33 and various correction values stored in the parameter storage section 34. 14. Control the tape feeder 16 to perform a component mounting operation. Furthermore, when the mounting operation processing unit 36 detects a work error, which will be described later, during the component mounting operation, it transmits the time of occurrence of the work error, the content of the work error, etc. to the line management PC 3.

Work errors include a suction error in which the suction nozzle 15 cannot suction the component D, a recognition error in which the component recognition camera 21 cannot recognize the component D that the suction nozzle 15 is suctioning and holding, and a recognition error in which the mounting head 14 cannot suction the component D onto the circuit board B. A mounting error in which the component cannot be mounted and is taken home, a supply error in which the component D supplied by the tape feeder 16 (component supply device) cannot be recognized by the board recognition camera 20, etc. are detected. In addition, when the component mounting line L1 is equipped with a mounting inspection device that inspects the component D mounted on the circuit board B in addition to the component mounting machines M1 to M3, the mounting inspection device inspects the component D based on the presence or absence of the component D inspected and the amount of positional deviation. may be used to detect implementation errors.

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

The operation information collection unit 44 associates the time of occurrence of the work error and the content of the work error transmitted from the component mounting machines M1 to M3 with information specifying the equipment element related to the work error, and collects the operation history as operation history information. The information is stored in the storage unit 43. In addition to the timing at which a work error occurs, the operation information collection unit 44 also collects the number of times the component D is picked up and mounted by each suction nozzle 15 at a predetermined timing such as every hour, and the tape feeder 16 (component supply device). The number of parts supplied and the like are collected and stored in the operation history storage unit 43 as operation history information in association with information specifying the equipment element.

In FIG. 3 , the maintenance management PC 5 includes a maintenance processing section 51 . The maintenance processing section 51 includes an off-premises communication section 52, an on-premises communication section 53, a display section 54, a maintenance storage section 55, a history information acquisition section 58, an error rate calculation section 59, a maintenance judgment section 60, a list creation section 61, and a display processing section. It is equipped with 62. 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-premise communication unit 52 transmits and receives data to and from the line management PC 3 installed in the factory F via the off-premise communication network 8. The local communication unit 53 sends and receives data to and from the mail server 6 via the local 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 predetermined timings such as at the end of each day or when workers are replaced in the factory F, and stores it in the equipment information storage unit 56 as equipment information for each equipment element. Make me 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 acquire the operation history information of a predetermined analysis target period, such as one week, all at once. That is, the equipment information storage unit 56 only needs to store enough information for the analysis period to analyze whether or not maintenance of each equipment element is necessary.

In FIG. 3, the error rate calculation unit 59 calculates the error rate based on the number of errors and the number of suctions of work errors related to equipment elements included in the operation history information. At this time, 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 element is necessary based on analysis results such as operation history information stored in the equipment information storage unit 56 and error rates stored in the analysis result storage unit 57. More specifically, the maintenance determination unit 60 accumulates the number of work errors related to equipment elements that have occurred during an analysis target period such as one week, and selects a predetermined number of errors, such as the latest two days, among equipment elements with a large number of errors. Equipment elements whose latest error rate in a period is equal to or higher than a warning error rate (predetermined value) are determined to require maintenance.

Here, with reference to FIGS. 4A and 4B, an example of the necessity of maintenance determined by the maintenance determination unit 60 will be described. Figure 4(a) shows the cumulative number of errors (bar graph) for the tape feeder 16 that was determined to require maintenance, and Figure 4(b) shows the cumulative number of errors (bar graph) for 7 operating days for the tape feeder 16 that was determined to require no maintenance. The error rate (line graph) is shown graphically. The cumulative number of errors is displayed by accumulating work errors related to the tape feeder 16 from seven working days ago. The error rate indicates the error rate of work errors related to the tape feeder 16 for each working day, with a black circle indicating a warning error rate or higher, and a white circle indicating a lower error rate than the warning error rate.

The error rate of the tape feeder 16 shown in FIG. 4A is lower than the warning error rate before 7 working days, but exceeds the warning error rate from 6 working days onwards. That is, since the error rates for the latest two days (two working days ago and one working day ago) are each higher than the warning error rate, the maintenance determining unit 60 determines that "maintenance is required". The error rate of the tape feeder 16 shown in FIG. 4(b) suddenly exceeds the warning error rate on the 6th and 5th working day, but after the 4th working day, the causing dust is removed, etc. The defect has been resolved and the error rate is lower than the warning error rate. 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 not required."

In FIG. 3, the list creation unit 61 uses operating history information stored in the equipment information storage unit 56, analysis results such as error rates stored in the analysis result storage unit 57, and maintenance requirements determined by the maintenance determination unit 60. A list of equipment elements that require maintenance (maintenance recommended equipment element list) is created based on whether or not maintenance is required.

The created maintenance recommended equipment element list is stored in the analysis result storage section 57 and is also sent 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 serves as a communication unit that sends e-mail containing information on equipment elements determined to require maintenance. The list creation unit 61 and mail server 6 (communications unit) then order the information on the equipment elements that have a large number of errors, and provide information on the equipment elements that have been determined to require maintenance, including the number of errors and the fact that maintenance is required. It serves as a means of notification. As a result, it is possible to convey information that equipment elements requiring maintenance are displayed in order of priority to the person in charge at Factory F, and productivity can be improved by efficiently performing maintenance on equipment elements. Can be done.

Here, with reference to FIG. 5, an example of a recommended maintenance feeder list, which is a list of recommended maintenance equipment elements for the tape feeder 16, will be described. The recommended maintenance feeder list includes a "feeder number" that identifies the tape feeder 16, a "part number" that identifies the component D that the tape feeder 16 supplies, and a component mounting machine M1 to M3 that is equipped with the tape feeder 16. It includes "device number", "feeder address" that specifies the position of tape feeder 16 mounted on feeder base 17a, and "feeder position" that specifies the position of cart 17 mounted on component mounting machines M1 to M3.

In addition, the recommended maintenance feeder list includes the "cumulative number of suctions", which is the total number of times the tape feeder 16 supplied the parts D and the suction nozzle 15 suctioned them during the analysis period (for example, one week); This includes the "cumulative number of errors" which is the total number of work errors related to the tape feeder 16 that occurred during the period of time, and the "cumulative error rate" which is obtained by dividing the cumulative number of errors by the cumulative number of suctions. The recommended maintenance feeder list also includes the "number of suction errors" which is the total number of suction errors, the "number of recognition errors" which is the total number of recognition errors, and the "number of mounting errors" which is the total number of mounting errors. The sum of the number of adsorption errors, the number of recognition errors, and the number of mounting errors is the cumulative number of errors.

Note that the breakdown of the cumulative number of errors does not need to include all of the number of adsorption errors, the number of recognition errors, and the number of mounting errors. That is, the cumulative number of errors must include at least the number of suction errors caused by the suction nozzle 15 attached to the mounting head 14, the recognition error of the component D by the component recognition camera 21, and the number of mounting errors caused by the mounting head 14. Bye.

In FIG. 5, the recommended maintenance feeder list is ordered in descending order of cumulative error count. In addition, the feeder number, part number, device number, and feeder number that specify the tape feeder 16 (here, 5 units) whose error rate in the latest two days is equal to or higher than the warning error rate and whose maintenance determination unit 60 determines that “maintenance is required” are also provided. Addresses and feeder positions are shaded. The person in charge at factory F, who has been notified of the recommended maintenance feeder list, can perform maintenance work efficiently by performing maintenance work on the shaded tape feeders 16 that require maintenance in order from the top.

In FIG. 3, the display processing unit 62 executes display processing to display the recommended maintenance equipment element list created by the list creation unit 61 on the display unit 54. That is, the display unit 54 displays information on equipment elements determined to require maintenance. Then, the list creation unit 61, display processing unit 62, and display unit 54 order the information on equipment elements with a large number of errors, and information on equipment elements determined to require maintenance, including the number of errors and the fact that maintenance is required. It serves as a means of notification. In addition, as a configuration of the equipment element maintenance analysis system 1, the maintenance management PC 5 is placed in the factory F, and information on equipment elements determined to require maintenance is displayed on the display section 54 placed in the factory F. Information on equipment elements that require maintenance may be transmitted to the person in charge at F.

Next, referring to FIG. 6, a description will be given of an equipment element maintenance analysis method for analyzing whether or not maintenance of equipment elements is necessary using the equipment element maintenance analysis system 1. First, the history information acquisition unit 58 of the maintenance management PC 5 acquires 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 step). The acquired operation history information is stored in the equipment information storage section 56.

When the operation history information acquisition step (ST1) is repeated a predetermined number of times (for example, 7 times) to obtain operation history information for a predetermined analysis target period (for example, one week) (Yes in ST2), the error rate calculation unit 59 calculates the operation history information. Based on the number of work errors related to equipment elements included in the information, calculate the error rate in the latest predetermined period (for example, the latest 2 days) of the acquired operation history information (ST3: Latest error rate calculation process). Next, the maintenance determination unit 60 calculates the cumulative number of errors in the analysis target period (ST4: cumulative error number calculation step), and selects equipment elements with a large number of errors whose latest error rate is equal to or higher than a predetermined value (warning error rate). It is determined that the equipment element requires maintenance (ST5: maintenance necessity determination step). Thereby, it is possible to appropriately analyze whether or not maintenance of equipment elements is necessary.

In FIG. 6, a list creation unit 61 orders information on equipment elements with a large number of errors, and a mail server 6 sends an e-mail containing information on equipment elements determined to require maintenance, including the number of errors and the fact that maintenance is required. is transmitted and notified (ST6: notification step). 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 for notification. . As a result, the person in charge at the factory F can be informed of information in which equipment elements requiring maintenance are displayed in order of priority.

As described above, the equipment element maintenance analysis system 1 of the present embodiment includes the history information acquisition unit 58 that acquires operation history information of manufacturing equipment at a predetermined timing, and the history information acquisition unit 58 that acquires operation history information of manufacturing equipment at a predetermined timing, and An error rate calculating section 59 that calculates an error rate based on the number of errors, a maintenance determining section 60 that determines whether or not maintenance of an equipment element is necessary, and a notification means that reports information on equipment elements that are determined to require maintenance. We are prepared.

Then, the error rate calculation unit 59 calculates the error rate in the latest predetermined period among the operation history information, and the maintenance determination unit 60 calculates the error rate in the latest predetermined period among the equipment elements with a large number of errors. Error rate) or higher determines that equipment elements require maintenance, and the notification means orders information on equipment elements with a large number of errors, and notifies the equipment elements including the number of errors and the fact that maintenance is required. Thereby, it is possible to appropriately analyze whether or not maintenance of equipment elements is necessary. Furthermore, the support center S can use appropriate information from among the large amount of information sent from the factory F to analyze whether maintenance is necessary.

Note that although the tape feeder 16 has been described above as an equipment element on which the necessity of maintenance is determined, the equipment element on 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 work errors related to the suction nozzle 15 or the mounting head 14 and determining whether or not maintenance is necessary, the suction nozzle 15 or the mounting head 14 can be The necessity of maintenance can also be analyzed. Furthermore, even if operation history information cannot be acquired on all days of the analysis target period, the latest error rate may be calculated from the latest of the acquired dates. Further, in the above, the operation history information is analyzed collectively on a daily basis, but the operation history information may be analyzed on a production lot basis.

The equipment element maintenance analysis system and the equipment element maintenance analysis method of the present invention have the effect of being able to appropriately analyze whether or not maintenance of equipment elements is necessary, and are useful in the field of mounting components on boards.

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

Claims (6)

a history information acquisition unit that acquires, at a predetermined timing, operation history information of manufacturing equipment to which at least one equipment element is attached and which manufactures products;
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;
a maintenance determination unit that determines whether or not maintenance of the equipment element is necessary based on the error rate;
a list creation unit that creates a recommended maintenance equipment element list in which information on the equipment elements determined to require maintenance is ordered;
a display processing unit that displays the maintenance recommended equipment element list;
The operation history information includes the number of times a recognition error has occurred in a suction operation that suctions parts supplied from the parts supply device as the equipment element,
The error rate calculation unit is characterized in that the error rate is calculated as the frequency of occurrence of the recognition error in the latest predetermined period.
Equipment element maintenance analysis system. The number of times a recognition error occurs includes the number of times an error occurs in which a component is not picked up in the desired state, and the number of times an error occurs in which a component is not picked up when performing recognition with a component recognition camera. ,
The equipment element maintenance analysis system according to claim 1. The list creation unit creates the maintenance recommended equipment element list including the number of recognition errors of the equipment element determined to require maintenance.
The equipment element maintenance analysis system according to claim 1. In the recommended maintenance equipment element list, information on the equipment elements is ordered in descending order of the number of recognition errors;
An equipment element maintenance analysis system according to any one of claims 1 to 3. An equipment element maintenance analysis method for analyzing the necessity of maintenance of at least one equipment element installed in manufacturing equipment for manufacturing products, the method comprising:
Acquire operation history information of the manufacturing equipment at a predetermined timing, calculate an error rate based on the number of errors related to the equipment element included in the operation history information, and maintain the equipment element based on the error rate. determining the necessity of maintenance, creating a maintenance recommended equipment element list in which information on the equipment elements determined to require maintenance is ordered, and displaying the maintenance recommended equipment element list;
The operation history information includes the number of times a recognition error has occurred in a suction operation that suctions parts supplied from the parts supply device as the equipment element,
Calculating the frequency of occurrence of the recognition error in the latest predetermined period as the error rate,
Equipment element maintenance analysis method. receiving information indicating a change of workers from the factory where the manufacturing equipment is installed;
acquiring the operation history information when receiving the information;
The equipment element maintenance analysis method according to claim 5.

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