WO2019198220A1

WO2019198220A1 - Maintenance management device, mounting device, and maintenance management method

Info

Publication number: WO2019198220A1
Application number: PCT/JP2018/015461
Authority: WO
Inventors: 中井　健二
Original assignee: 株式会社Ｆｕｊｉ
Priority date: 2018-04-13
Filing date: 2018-04-13
Publication date: 2019-10-17
Also published as: JP7382920B2; JPWO2019198220A1

Abstract

This maintenance management device manages the maintenance work conducted on an imaging-related member that includes at least one of: a reference pattern provided to a mounting device that mounts a component onto a substrate; and an imaging unit that images the reference pattern. This maintenance management device comprises a determination unit that determines whether maintenance work is required for the imaging-related member that is either one of the reference pattern and the imaging unit, on the basis of an evaluation value obtained from imaging results from imaging performed by the imaging unit during calibration processing that is performed periodically in order to maintain mounting accuracy of the mounting device.

Description

Maintenance management apparatus, mounting apparatus, and maintenance management method

This specification discloses a maintenance management device, a mounting device, and a maintenance management method.

Conventionally, as a mounting device, for example, a part held by a suction nozzle is imaged by an LED, a mirror, and a camera, and the dirt of the mirror is recognized through image processing from the imaging data, and cleaning is performed according to the contrast and the amount of dust. What determines necessity is proposed (for example, refer patent document 1). In this mounting apparatus, when it is determined that cleaning is necessary, air is supplied from the air blow nozzle to automatically clean the mirror surface.

JP 11-330799 A

However, in the mounting apparatus described above, it can be said that cleaning can be performed properly, but it is still not sufficient, and for example, imaging of a reference pattern by an imaging camera has not been considered. In particular, since the reference pattern is an origin for improving accuracy, it has been demanded that the configuration for performing the imaging process should be particularly appropriately maintained.

This indication is made in view of such a subject, and it aims at providing the maintenance management device, mounting device, and maintenance management method which can perform maintenance work relevant to an image pick-up part more appropriately. To do.

The maintenance management device, mounting device, and maintenance management method disclosed in this specification have taken the following measures in order to achieve the main purpose described above.

The maintenance management device of the present disclosure is:
A maintenance management device that manages maintenance work of at least one of a reference pattern provided in a mounting device for mounting a component on a substrate and an imaging unit that images the reference pattern,
Imaging that is one of the reference pattern and the imaging unit based on an evaluation value obtained from an imaging result captured by the imaging unit during a calibration process periodically performed to maintain the mounting accuracy of the mounting apparatus A determination unit that determines whether maintenance work is necessary for the related member,
, With.

In this maintenance management device, on the imaging-related member that is either the reference pattern or the imaging unit, based on the evaluation value obtained from the imaging result during the calibration process by the imaging unit that images at least one of the component and the reference pattern On the other hand, the necessity of maintenance work is determined. In this maintenance management device, a stable evaluation value can be obtained in a calibration process that is periodically and repeatedly performed under the same conditions, so that maintenance work for members related to the imaging unit can be performed more appropriately. Here, the reference pattern includes a reference portion, shape, structure, and the like, and may be a reference mark such as a figure or a character. The evaluation value may be a correction value used in the mounting process.

1 is a schematic explanatory diagram illustrating an example of a mounting system 10. FIG. Explanatory drawing of the cleaning process of the reference | standard mark M by the cleaning member 37 of the cleaning part 36. FIG. Explanatory drawing of the cleaning process of the components imaging part 15 by the cleaning jig 38 of the cleaning part 36. FIG. The flowchart showing an example of a mounting process routine. Explanatory drawing which shows the change of an evaluation value (correction value). Explanatory drawing which shows an example which detects the outlier of an evaluation value (correction value). Explanatory drawing showing an example of the captured image display screen 60 at the time of the phase shift of the reference | standard mark M. FIG. Explanatory drawing showing an example of the captured image display screen 60 at the time of contamination of the reference | standard mark M. FIG. Explanatory drawing showing an example of the captured image display screen 60 at the time of contamination of the mark imaging part 25. FIG.

This embodiment will be described below with reference to the drawings. FIG. 1 is a schematic explanatory diagram of a mounting system 10 which is an example of the present disclosure. FIG. 2 is an explanatory diagram of the cleaning process of the reference mark M by the cleaning member 37 of the cleaning unit 36. FIG. 3 is an explanatory diagram of the cleaning process of the component imaging unit 15 by the cleaning jig 38 of the cleaning unit 36. The mounting system 10 is a system for mounting the component P on the substrate S, for example. The mounting system 10 includes a mounting device 11 and a management computer (PC) 40. The mounting system 10 is configured as a mounting line in which a plurality of mounting apparatuses 11 that perform mounting processing for mounting a component P on a substrate S are arranged from upstream to downstream. In FIG. 1, only one mounting apparatus 11 is shown for convenience of explanation. In the present embodiment, the left-right direction (X-axis), the front-rear direction (Y-axis), and the up-down direction (Z-axis) are as shown in FIGS.

As illustrated in FIG. 1, the mounting apparatus 11 includes a substrate processing unit 12, a component supply unit 14, a component imaging unit 15, an operation panel 16, a mounting unit 20, and a control unit 31. The substrate processing unit 12 is a unit that carries in, transports, fixes and unloads the substrate S at the mounting position. The substrate processing unit 12 has a pair of conveyor belts provided at intervals in the front and rear direction of FIG. 1 and spanned in the left-right direction. The board | substrate S is conveyed by this conveyor belt.

The component supply unit 14 is a unit that supplies the component P to the mounting unit 20. The component supply unit 14 includes a plurality of feeders on which reels around which tapes holding components are wound are mounted. The component supply unit 14 may include a tray unit having a tray as a holding member on which a plurality of components are arranged and placed.

The component imaging unit 15 is an apparatus that captures an image of one or more components P collected and held by the mounting head 22. The component imaging unit 15 is disposed between the component supply unit 14 and the substrate processing unit 12. The imaging range of the component imaging unit 15 is above the component imaging unit 15. When the mounting head 22 holding the component P passes above the component imaging unit 15, the component imaging unit 15 captures an image of the component P and outputs the captured image to the control unit 31. Further, the component imaging unit 15 images the reference mark M disposed on the mounting head 22 together with the component P. The control unit 31 can execute an inspection as to whether or not the shape and part of the component P are normal, detection of a positional deviation amount when the component P is collected, and the like based on the captured image.

The operation panel 16 is a unit that exchanges information with the worker, and includes a display unit 17 that displays a screen and an operation unit 18 that is operated by the worker.

The mounting unit 20 is a unit that collects the component P from the component supply unit 14 and places the component P on the substrate S fixed to the substrate processing unit 12. The mounting unit 20 includes a head moving unit 21, a mounting head 22, and a nozzle 23. The head moving unit 21 includes a slider that is guided by the guide rail and moves in the XY directions, and a motor that drives the slider. The mounting head 22 collects one or more components P and moves them in the XY directions by the head moving unit 21. The mounting head 22 is detachably mounted on the slider. One or more nozzles 23 are detachably mounted on the lower surface of the mounting head 22. The nozzle 23 collects parts using negative pressure. The collecting member for collecting the component P may be a mechanical chuck that mechanically holds the component P in addition to the nozzle 23. A reference mark M serving as a reference position of the nozzle 23 is disposed on the lower surface side of the mounting head 22 (see FIG. 2). A mark imaging unit 25 is disposed on the lower surface side of the slider on which the mounting head 22 is mounted. The mark imaging unit 25 moves in the XY directions as the mounting head 22 moves, and images a mark or the like formed on the substrate S.

The control unit 31 is configured as a microprocessor centered on the CPU 32, and includes a storage unit 33 for storing various data. The control unit 31 outputs control signals to the substrate processing unit 12, the component supply unit 14, the component imaging unit 15, the operation panel 16, and the mounting unit 20, and the mounting unit 20, the component supply unit 14, the component imaging unit 15, and the operation A signal from the panel 16 is input. The storage unit 33 stores mounting condition information 34, calibration related information 35, and the like. The mounting condition information 34 is information including information on the component P, an arrangement order in which the component P is mounted on the substrate S, an arrangement position, and the like. The calibration related information 35 is information including a calibration result of each unit of the mounting apparatus 11 and a reference range used for determination. The calibration result includes, for example, a correction value for correcting a deviation in the XY direction due to thermal expansion or the like or an assembly error. The reference range may be determined empirically, for example, in a range in which a sudden event occurs in the mounting apparatus 11 and the correction value (evaluation value) in the calibration process is greatly changed. The sudden event includes, for example, an object collision such that the reference mark M is displaced, contamination of the reference mark M and / or the component imaging unit 15, and the like.

The cleaning unit 36 is a unit that performs a cleaning process as a maintenance operation on the imaging-related members including the reference mark M, the component imaging unit 15, the glass surface of the mark imaging unit 25, and the like. The cleaning unit 36 includes a cleaning member 37 and a cleaning jig 38. The cleaning member 37 is a brush that cleans the glass surface of the reference mark M and the mark imaging unit 25, and is disposed at the base of the mounting apparatus 11 so as to be movable up and down. As shown in FIG. 2, the cleaning member 37 is lifted after moving a cleaning target (a reference mark M or the like) upward to clean it. The cleaning jig 38 is a brush that cleans the component imaging unit 15 and the like, and is attached to the mounting head 22 instead of the nozzle 23. As shown in FIG. 3, the cleaning jig 38 moves the mounting head 22 to a position where a cleaning target (component imaging unit 15 or the like) is disposed below and then lowers the cleaning jig 38 to clean it.

The management PC 40 is a computer that manages information of each device of the mounting system 10. As illustrated in FIG. 1, the management PC 40 includes a control unit 41, a storage unit 43, a display unit 47, and an input device 48. The control unit 41 is configured as a microprocessor centered on the CPU 42. The storage unit 43 is a device that stores various data such as a processing program such as an HDD. The storage unit 43 stores mounting condition information 44 similar to the mounting condition information 34, calibration related information 45 similar to the calibration related information 35, and the like. The display unit 47 is a liquid crystal screen that displays various types of information. The input device 48 includes a keyboard, a mouse, and the like through which an operator inputs various commands.

Next, the operation of the mounting system 10 according to the present embodiment configured as described above, particularly the processing for performing the mounting process as well as the calibration process will be described. FIG. 4 is a flowchart illustrating an example of a mounting process routine executed by the CPU 32 of the control unit 31. This routine is stored in the storage unit 33 and executed according to an instruction from the operator. When this routine is executed, the CPU 32 reads out and acquires the mounting condition information 34 (S100), and determines whether it is time to execute the calibration process (S110). The execution timing of the calibration process is set immediately after the mounting process of the mounting apparatus 11 is started, after a predetermined time (for example, 1 hour or 2 hours) has elapsed, or after a predetermined number of substrates (for example, 100 sheets) has been produced. . When it is not the execution timing of the calibration process, the CPU 32 executes the mounting process (S250). In the mounting process, the CPU 32 conveys and fixes the substrate S, collects the component P by the nozzle 23 based on the arrangement order of the mounting condition information 34, arranges the component P on the substrate S, and when the component P is arranged, Execute the discharging process. Next, the CPU 32 determines whether or not the production is completed (S260). When the production is not completed, the CPU 32 executes the processes after S110. On the other hand, when the production is completed in S260, the CPU 32 ends this routine.

On the other hand, when it is the execution timing of the calibration process in S110, the CPU 32 executes the calibration process (S120) and calculates the evaluation value (correction value) (S130). In the calibration process, the CPU 32 executes a process for obtaining a correction value for correcting a change according to the usage time and a process for obtaining a correction value for the assembly error. Examples of the correction value corresponding to the usage time include calibration of moving coordinates, center position calibration of the mounting head 22, and resolution calibration of the component imaging unit 15. Examples of the correction value for the assembly error include the position of the storage unit for storing the nozzles 23 and the correction value for the position of the nozzles 23 attached to the mounting head 22. For example, in the movement coordinate calibration process, the CPU 32 moves the mounting head 22 so that the center coordinates of the component imaging unit 15 and the center coordinates of the reference mark M coincide with each other based on the correction value obtained by the previous calibration process. At that position, the reference mark M is imaged by the component imaging unit 15. The CPU 32 measures the shift amount of the center coordinate of the reference mark M with respect to the center coordinate of the component imaging unit 15 based on the captured image, and based on the shift amount, the mounting head 22 is positioned at an appropriate position. A correction value for adjusting the amount of movement is obtained. The deviation amount itself may be an evaluation value. Further, in the position calibration process of the nozzle 23, the CPU 32 images the reference mark M and the nozzle 23 with the component imaging unit 15 in a state where the nozzle 23 is mounted on the mounting head 22, and determines the tip of the nozzle 23 from the proper position. The degree of deviation is obtained and a correction value for correcting this is obtained. The CPU 32 periodically executes such a calibration process under the same conditions to improve the operation accuracy of the mounting apparatus 11.

Now, when the evaluation value (correction value) is obtained, the CPU 32 determines whether or not the evaluation value indicates an outlier that exceeds a predetermined reference range (S140). FIG. 5 is an explanatory diagram showing changes in evaluation values (correction values). FIG. 6 is an explanatory diagram illustrating an example of detecting an outlier of an evaluation value (correction value). As shown in FIG. 5, the correction value to be obtained shows a substantially constant value although it may change depending on the use time. However, the correction value may suddenly change greatly, for example, when the unit is deformed due to insufficient handling of the unit by an operator, when the unit deteriorates, or when some dirt is attached to the unit. In S140, a sudden accident with respect to such a unit is detected. Outlier detection can be performed as follows. For example, many evaluation values obtained within a predetermined period (for example, 1 day or 10 days) and / or a predetermined number (for example, 100 cases, 5000 cases, etc.) are accumulated, and the first quartile Q1 and the third The quartile Q3 is calculated, and IQR = Q3-Q1 is obtained. At this time, evaluation values regarded as outliers are excluded from the accumulation. Next, a reference range is set between the lower limit value (Q1−n × IQR) and the upper limit value (Q3 + n × IQR), and a value outside this reference range is regarded as an outlier. n is an arbitrary number and is set to an appropriate multiple by verification. In this way, the CPU 32 detects an outlier. In addition, the CPU 32 performs this determination on each correction value obtained by the calibration process described above.

When the evaluation value is an outlier in S140, maintenance information is displayed and output together with the captured image indicating the outlier and the reference image (S150). FIG. 7 is an explanatory diagram illustrating an example of a captured image display screen 60 when the reference mark M has a phase shift. FIG. 8 is an explanatory diagram illustrating an example of a captured image display screen 60 when dirt is attached to the reference mark M. FIG. 9 is an explanatory diagram illustrating an example of a captured image display screen 60 when dirt is attached to the component imaging unit 15. The captured image display screen 60 is displayed on the display unit 17 of the operation panel 16. Note that the captured image display screen 60 may be displayed on the display unit 47 of the management PC 40. On this captured image display screen 60, a cursor 61, a captured image display field 62, a reference image display field 63, a recalibration command key 64, an imaging unit cleaning command key 65, a mark cleaning command key 66, a restart key 67, and maintenance information display are displayed. A column 68 is provided. The cursor 61 operates based on the operation of the operation unit 18 and is operated when selecting a display field, a key, or the like. The captured image display column 62 is a column for displaying a captured image indicating an outlier. The reference image display field 63 is a field for displaying a normal captured image as a reference image. The operator can grasp the abnormal state occurring in the imaging-related member by comparing the images in the captured image display field 62 and the reference image display field 63. The recalibration command key 64 is a key that is pressed when the calibration process is executed again. When this key is pressed, the CPU 32 executes the process of S120. The imaging unit cleaning command key 65 is a key pressed by the operator when the cleaning unit 36 cleans the component imaging unit 15. The mark cleaning command key 66 is a key pressed by the operator when the cleaning unit 36 cleans the reference mark M. The resume key 67 is a key that is pressed when the mounting process is resumed. The maintenance information display column 68 is a column for displaying maintenance information indicating that maintenance work is performed on the imaging-related member. Note that the CPU 32 may temporarily stop the mounting process routine or continue it as it is when the captured image display screen 60 is displayed and output.

After S150, the CPU 32 executes a process for estimating a factor that requires maintenance work based on the imaging result and a process for eliminating the process (S160 to S220). First, the CPU 32 calculates the degree of coincidence between the captured image and the reference image (S160), and determines whether the degree of coincidence is equal to or greater than a predetermined threshold, thereby obtaining a maintenance factor estimation result (S170). For example, when the degree of coincidence between a captured image showing an outlier and a reference image is high, the shape of the reference mark M is normally captured, and therefore the physical displacement of the imaging-related member is estimated as a maintenance factor. (See FIG. 7). Further, when the degree of coincidence is low, since the shape of the reference mark M is not normally imaged, it can be estimated as a maintenance factor that dirt is attached to the imaging-related member. The predetermined threshold may be determined empirically as a value that can determine the displacement of the imaging-related member and the adhesion of dirt. When the displacement of the imaging-related member is estimated as a maintenance factor in S170, the CPU 32 notifies the operator of an error from the operation panel 16 (S180), and ends this routine. Upon confirming this error, the operator confirms the assembly position of the imaging-related member (reference mark M and / or component imaging unit 15).

On the other hand, when contamination of the imaging-related member is estimated as a maintenance factor in S170, the CPU 32 calculates a luminance difference when the phase of the captured image showing the outlier and the reference image is matched (S190), Is obtained (S200). The CPU 32 analyzes the luminance of the captured image and estimates whether the reference mark M is contaminated or the component imaging unit 15 is contaminated based on the magnitude of the luminance difference between the captured image and the reference image and the area where the luminance difference is generated. . For example, when the reference mark M is contaminated, as shown in the captured image display field 62B of FIG. 8, the absolute value of the luminance difference tends to be relatively large but the area causing the luminance difference does not tend to be large. On the other hand, when dirt is attached to the glass surface of the component imaging unit 15, as shown in the captured image display field 62C of FIG. 9, the absolute value of the luminance difference tends to be small, but the area where the luminance difference occurs tends to increase. Using such a relationship, the CPU 32 can estimate a contamination target (maintenance factor) requiring maintenance work.

When the contamination target is the reference mark M in S200, the cleaning unit 36 is caused to perform maintenance work (cleaning process) of the reference mark M (see S210, FIG. 2). By this maintenance work, the reference mark M is cleaned and recognized in a normal shape. On the other hand, when the contamination target is the component imaging unit 15 in S200, the maintenance operation (cleaning process) of the component imaging unit 15 is performed by the cleaning unit 36 (see S220 and FIG. 3). By this maintenance work, the glass surface of the component imaging unit 15 is cleaned, and a normal captured image is obtained. After S210 and S220, the CPU 32 executes processing subsequent to S120. That is, after performing the maintenance work, the CPU 32 executes the calibration process again in S120, and determines whether or not the evaluation value is an outlier in S140. When the contamination of the imaging-related member is eliminated, the evaluation value satisfies the reference range. If the evaluation value is an outlier that exceeds the reference range even after maintenance work is performed multiple times, the CPU 32 may notify an error and terminate this routine.

On the other hand, when the evaluation value is within the reference range in S140, the CPU 32 performs reference range update setting processing (S230), and outputs the calibration result to the management PC 40 and the operation panel 16 (S240). In the reference range update setting process, for example, the CPU 32 accumulates newly obtained correction values, and performs a process of setting the reference range by including it in the predetermined period and the predetermined number of data. Then, after S240, the CPU 32 executes the processing after S250 and ends this routine.

Here, the correspondence between the constituent elements of the present embodiment and the constituent elements of the present disclosure will be clarified. The reference mark M of this embodiment corresponds to a reference pattern of the present disclosure, the component imaging unit 15 corresponds to an imaging unit, the CPU 32 corresponds to a determination unit, a notification processing unit, and a maintenance factor estimation unit, and the control unit 31 performs maintenance. It corresponds to a management device. The mounting device 11 corresponds to a mounting device, the substrate processing unit 12 corresponds to a substrate processing unit, the mounting unit 20 corresponds to a mounting unit, and the cleaning unit 36 corresponds to a cleaning unit. In the present embodiment, an example of the maintenance management method of the present disclosure is also clarified by describing the operation of the control unit 31.

The mounting apparatus 11 of the present embodiment described above has a function of a maintenance management apparatus that manages maintenance work of imaging related members including at least one of the provided reference mark M and the component imaging unit 15 that images the reference mark M. . The mounting apparatus 11 requires maintenance work on the imaging-related members based on the evaluation values obtained from the imaging results captured by the component imaging unit 15 during the calibration process periodically performed to maintain mounting accuracy. Determine no. In the mounting apparatus 11, since a stable evaluation value can be obtained in the calibration process that is periodically performed under the same conditions, the maintenance work for the imaging-related member can be performed more appropriately. In addition, the mounting apparatus 11 can more appropriately execute the maintenance work for the imaging-related member by notifying the operation panel 16 that the maintenance work is required. Furthermore, since the mounting apparatus 11 notifies the cleaning and maintenance work of the reference mark M and / or the glass surface of the component imaging unit 15, the maintenance work is performed against contamination of the reference mark M and the glass surface of the component imaging unit 15. Can be performed appropriately.

Also, the CPU 32 determines that maintenance work is necessary when the evaluation value indicates an outlier that exceeds a predetermined reference range. When the evaluation value indicates an outlier, there may be a case where some dirt is attached or a strong impact is given to the imaging-related member. In the mounting apparatus 11, the worker can perform maintenance work in such a sudden state. Further, when executing the notification process, the mounting apparatus 11 outputs a captured image and a reference image indicating the outlier when the evaluation value indicates an outlier exceeding a predetermined reference range. In the mounting apparatus 11, the operator can compare the captured image indicating the outlier and the reference image, so that the necessity of maintenance work can be determined more accurately. Furthermore, the CPU 32 sets a reference range based on a plurality of evaluation values obtained within a predetermined period or a predetermined number of two or more evaluation values. In the mounting apparatus 11, the maintenance work for the imaging-related member can be performed more appropriately by using a more appropriate reference range.

Furthermore, when it is determined that the maintenance work is necessary for the imaging-related member, the mounting apparatus 11 performs a process of estimating a factor that requires the maintenance work based on the imaging result. In the mounting apparatus 11, by estimating the factor that required the maintenance work, the maintenance work target can be specified, and a more appropriate maintenance work can be executed. In addition, the CPU 32 determines the displacement of the imaging-related member when the degree of coincidence between the captured image of the reference mark M that shows an outlier whose evaluation value exceeds a predetermined reference range and the reference image of the reference mark M is equal to or greater than a threshold value. On the other hand, when the degree of coincidence of images is lower than the threshold value, contamination of the imaging-related member is estimated as a maintenance factor. Further, the CPU 32 analyzes the luminance of the captured image, and based on the magnitude of the luminance difference between the captured image and the reference image and the area where the luminance difference is generated, the CPU 32 may contaminate the reference mark M or the glass surface of the component imaging unit 15. Estimate contamination. The CPU 32 can estimate the object of maintenance work based on the degree of coincidence of images and the tendency of luminance difference.

Furthermore, the mounting apparatus 11 includes a cleaning unit 36 that cleans the imaging-related member with the cleaning member 37 and / or the cleaning jig 38. After determining that maintenance work is required for the imaging-related member, the mounting unit 11 performs imaging on the cleaning unit 36. Clean related members. In the mounting apparatus 11, maintenance work can be more reliably performed by the cleaning unit 36.

It should be noted that the maintenance management device and the mounting device of the present disclosure are not limited to the above-described embodiments, and needless to say, can be implemented in various modes as long as they belong to the technical scope of the present disclosure.

For example, in the above-described embodiment, the maintenance information is displayed in the maintenance information display column 68 and the captured image indicating the outlier and the reference image are displayed and output. However, one or more of them may be omitted. . Since the mounting apparatus 11 automatically identifies an imaging-related member that requires maintenance work and executes a maintenance process, the maintenance work for the imaging-related member can be more appropriately executed even if these display outputs are omitted. .

In the above-described embodiment, the reference mark M is described as the reference pattern. However, the reference mark M is not particularly limited as long as it includes a reference portion, shape, structure, and the like, and may be, for example, a figure or a character. In the above-described embodiment, the evaluation value for determining whether maintenance work is necessary is a correction value used for the mounting process. However, the evaluation value is not limited to this, and a value derived other than the correction value may be used. Good.

In the above-described embodiment, the notification process of the maintenance information is performed by the mounting apparatus 11. However, any apparatus included in the mounting system 10 may be used, and the notification process may be executed by the management PC 40, or another apparatus. For example, the notification process may be executed by a printing apparatus or an inspection apparatus. In the above-described embodiment, the mounting apparatus 11 has the functions of the maintenance management apparatus such as the evaluation value calculation, outlier detection, and maintenance factor estimation. If it is acquired from the mounting apparatus 11, the management PC 40 may have the function of the maintenance management apparatus, or another apparatus may have it. That is, the control unit such as the management PC 40, the printing apparatus, or the inspection apparatus may be a maintenance management apparatus. Even in this case, the maintenance work for the imaging-related member can be performed more appropriately.

In the embodiment described above, the mounting apparatus 11 performs estimation of maintenance factors, maintenance work, and the like. However, the present invention is not particularly limited to this as long as it notifies the worker that the maintenance work is required. Any of these may be omitted. Moreover, although the mounting apparatus 11 shall be provided with the cleaning part 36, it is good also as a thing which abbreviate | omits this. In this case, it is assumed that the worker identifies a maintenance factor based on the notified maintenance information and executes the maintenance work. For example, the mounting apparatus 11 determines whether the maintenance factor is displacement of the imaging-related member or contamination, but any of these may be omitted. Further, although the mounting apparatus 11 specifies whether the reference mark M is contaminated or the glass surface of the component imaging unit 15 is contaminated, these may not be specified. In this mounting apparatus 11 as well, the operator can perform maintenance work for the imaging-related member more appropriately.

In the above-described embodiment, the case where the reference mark M arranged on the mounting head 22 is imaged by the component imaging unit 15 has been described. However, the present invention is not particularly limited thereto, and the housing (base portion) of the mounting apparatus 11 is not limited thereto. The arranged reference mark may be imaged by the mark imaging unit 25, and the reference mark and the mark imaging unit 25 may be used as an imaging-related member. In this case, the cleaning member 37 can clean the mark imaging unit 25, and the cleaning jig 38 can clean the reference mark.

In the above-described embodiment, the present disclosure has been described as the mounting apparatus 11. However, a maintenance management apparatus, a maintenance management method, or a program for executing the maintenance management method may be used.

Here, the mounting apparatus and the mounting method of the present disclosure may be configured as follows. The maintenance management device according to the present disclosure performs a notification process for performing a notification process for notifying maintenance information indicating that a maintenance operation is performed on the imaging-related member based on a determination result of the necessity of the maintenance operation by the determination unit. It is good also as a thing provided with a part. In this maintenance management apparatus, by notifying that maintenance work is required, maintenance work for members related to the imaging unit can be performed more appropriately. Here, the apparatus that performs the notification process may be an apparatus included in the mounting system, and may be executed by the management apparatus of the mounting system or may be executed by the mounting apparatus.

In the maintenance management device of the present disclosure including a notification processing unit, the notification processing unit may execute the notification processing of the cleaning maintenance work of the reference pattern and / or the glass surface of the imaging unit. In this maintenance management device, maintenance work can be appropriately performed against dirt on the reference pattern, dirt on the glass surface of the imaging unit, and the like.

In the maintenance management device of the present disclosure including a notification processing unit, the notification processing unit, when executing the notification processing, captures an image that indicates an outlier when the evaluation value indicates an outlier that exceeds a predetermined reference range. The image and the reference image may be output. In this maintenance management apparatus, an operator can compare an image showing an outlier with a reference image, so that the necessity of maintenance work can be determined more accurately. This “predetermined reference range” may be determined empirically, for example, in a range in which a sudden event occurs in the mounting apparatus and the evaluation value is greatly changed.

In the maintenance management device of the present disclosure, the determination unit may determine that the maintenance work is necessary when the evaluation value indicates an outlier exceeding a predetermined reference range. When the evaluation value indicates an outlier, there may be a case where some dirt is attached or a strong impact is given to the imaging-related member. In this maintenance management device, the operator can perform maintenance work in such a sudden state.

In the maintenance management device according to the present disclosure that uses a predetermined reference range, the determination unit sets the reference range based on a plurality of the evaluation values or two or more predetermined evaluation values obtained within a predetermined period. It may be a thing. In this maintenance management device, the maintenance work of the members related to the imaging unit can be performed more appropriately by using a more appropriate reference range.

The maintenance management device according to the present disclosure is configured to estimate a factor that requires maintenance work based on the imaging result when the determination unit determines that maintenance work is required for the imaging-related member. An estimation unit may be provided. In this maintenance management apparatus, by estimating the factor that required maintenance work, the maintenance work target can be specified, and more appropriate maintenance work can be executed. In this maintenance management apparatus, the maintenance factor estimation unit may estimate a maintenance factor by comparing a captured image showing a deviated value whose evaluation value exceeds a predetermined reference range with a reference image. At this time, the maintenance factor estimation unit is configured to capture the image when the degree of coincidence between the image of the reference pattern indicating the outlier exceeding the predetermined reference range and the reference image of the reference pattern is equal to or greater than a threshold value. The displacement of the related member may be estimated as the maintenance factor. Alternatively, the maintenance factor estimation unit may perform the imaging-related when the degree of coincidence between the captured image of the reference pattern indicating the outlier that exceeds the predetermined reference range and the reference image of the reference pattern is lower than a threshold value. The contamination of the member may be estimated as the maintenance factor. In addition, the maintenance factor estimation unit analyzes the luminance of the captured image, and determines whether the reference pattern is contaminated based on the magnitude of the luminance difference between the captured image and the reference image and the area where the luminance difference is generated. It may be estimated whether the surface is contaminated. When dirt is attached to the glass surface of the image pickup unit, it is not the focal position of the image pickup unit, so the brightness difference is small but the area having the brightness difference tends to be larger than when the dirt is attached to the reference pattern side. . The maintenance factor estimation unit can estimate the target of the maintenance work using such a relationship.

The mounting apparatus of the present disclosure is:
A substrate processing unit for processing the substrate;
A mounting part having a sampling member for sampling the component and arranging the sampled component on the substrate;
An imaging unit for imaging a reference pattern;
One of the maintenance management devices described above;
It is equipped with.

As with the above-described maintenance management device, this mounting device can obtain a stable evaluation value in a calibration process that is periodically and repeatedly performed under the same conditions, so that maintenance work for members related to the imaging unit is more appropriate. Can be executed.

The mounting device of the present disclosure includes a cleaning unit that cleans the imaging-related member with a cleaning member, and the maintenance management device determines that the maintenance work is necessary for the imaging-related member, and then the cleaning unit The imaging related member may be cleaned. In this mounting apparatus, maintenance work can be more reliably performed by the cleaning unit.

The maintenance management method of the present disclosure is:
A maintenance management method for managing maintenance work of at least one of a reference pattern provided in a mounting apparatus for mounting a component on a substrate and an imaging unit that images the reference pattern,
Imaging that is one of the reference pattern and the imaging unit based on an evaluation value obtained from an imaging result captured by the imaging unit during a calibration process periodically performed to maintain the mounting accuracy of the mounting apparatus Determining whether maintenance work is necessary for related members;
Is included.

This maintenance management method can obtain a stable evaluation value in a calibration process that is periodically and repeatedly performed under the same conditions as in the maintenance management apparatus described above. Can be implemented properly. In this maintenance management method, various aspects of the above-described maintenance management apparatus and mounting apparatus may be adopted, or a configuration that realizes the functions of the above-described maintenance management apparatus and mounting apparatus may be added. Good.

The present disclosure can be used in the technical field of devices for mounting components.

10 mounting system, 11 mounting device, 12 substrate processing unit, 14 component supply unit, 15 component imaging unit, 16 operation panel, 17 display unit, 18 operation unit, 20 mounting unit, 21 head moving unit, 22 mounting head, 23 nozzle , 25 mark imaging unit, 31 control unit, 32 CPU, 33 storage unit, 34 mounting condition information, 35 calibration related information, 36 cleaning unit, 37 cleaning member, 38 cleaning jig, 40 management PC, 41 control unit, 42 CPU , 43 storage unit, 44 mounting condition information, 45 calibration related information, 47 display unit, 48 input device, 60 captured image display screen, 61 cursor, 62, 62B, 62C captured image display column, 63 reference image display column, 64 re Calibration command key, 65 Image pickup unit cleaning command key, 66 Mark cleaning command key, 67 Restart key , 68 maintenance information display column, M reference marks, P parts, S substrate.

Claims

A maintenance management device that manages maintenance work of at least one of a reference pattern provided in a mounting device for mounting a component on a substrate and an imaging unit that images the reference pattern,
Imaging that is one of the reference pattern and the imaging unit based on an evaluation value obtained from an imaging result captured by the imaging unit during a calibration process periodically performed to maintain the mounting accuracy of the mounting apparatus A determination unit that determines whether maintenance work is necessary for the related member,
Maintenance management device with
The maintenance management device according to claim 1,
A maintenance management device comprising: a notification processing unit that executes a notification process for notifying maintenance information indicating that a maintenance operation is performed on the imaging-related member based on a determination result of whether or not the maintenance operation is necessary by the determination unit.
The maintenance management device according to claim 2, wherein the notification processing unit executes the notification processing of cleaning and maintenance work of the reference pattern and / or the glass surface of the imaging unit.
The said notification process part outputs the captured image and reference image which show this outlier when the said evaluation value shows the outlier which exceeds a predetermined reference range, when performing the said notification process. 3. The maintenance management apparatus according to 3.
The maintenance management apparatus according to any one of claims 1 to 4, wherein the determination unit determines that the maintenance work is necessary when the evaluation value indicates an outlier exceeding a predetermined reference range.
The maintenance management device according to claim 4 or 5, wherein the determination unit sets the reference range based on a plurality of the evaluation values obtained within a predetermined period or a predetermined number of evaluation values of two or more.
The maintenance management device according to any one of claims 1 to 6,
Maintenance management provided with a maintenance factor estimation unit that estimates a factor that requires maintenance work based on the imaging result when the determination unit determines that maintenance work is required for the imaging-related member apparatus.
A substrate processing unit for processing the substrate;
A mounting part having a sampling member for sampling the component and arranging the sampled component on the substrate;
An imaging unit for imaging a reference pattern;
The maintenance management device according to any one of claims 1 to 7,
Mounting device.
The mounting apparatus according to claim 8, wherein
A cleaning unit for cleaning the imaging-related member with a cleaning member;
The maintenance management device causes the cleaning unit to clean the imaging-related member after determining that the maintenance work is necessary for the imaging-related member.
A maintenance management method for managing maintenance work of at least one of a reference pattern provided in a mounting apparatus for mounting a component on a substrate and an imaging unit that images the reference pattern,
Imaging that is one of the reference pattern and the imaging unit based on an evaluation value obtained from an imaging result captured by the imaging unit during a calibration process periodically performed to maintain the mounting accuracy of the mounting apparatus Determining whether maintenance work is necessary for related members;
Maintenance management method including.