JP7474311B2 - Maintenance Management Device - Google Patents

Description

This specification relates to a maintenance management device.

As disclosed in Patent Document 1, replacement elements such as suction nozzles used in component mounting machines are inspected by an inspection device in order to maintain proper performance. Depending on the results of the inspection, the replacement elements are subjected to maintenance such as cleaning and repair. This prevents mounting errors caused by replacement elements during the mounting process by the component mounting machine.

International Publication No. 2016/016929

However, the performance of the replaced element that has undergone maintenance may be degraded compared to a new replaced element, or the maintenance may be insufficient and may cause a mounting error again.Therefore, there is a demand for more reliable prevention of mounting errors and suppression of a decrease in production efficiency in the mounting process by a component mounting machine.
An object of the present specification is to provide a production management device that manages the results of inspections performed by an inspection device as statistical information and makes it possible to use the information for maintenance to maintain production efficiency.

The maintenance management device disclosed in this specification comprises an inspection device that determines the quality of a replacement element by inspecting the replacement element in a component mounting machine that mounts components onto a circuit board, and an information management unit that stores statistical information associated with the results of multiple inspections by the inspection device for each of the identification information of the replacement elements , and adds the type of maintenance that has been previously performed on the replacement element to the statistical information stored in the information management unit.

With this configuration, for example, an operator can receive a notification based on statistical information and obtain information about the test object. This statistical information is useful information that can be used in analysis to grasp the performance level of the test object and the trend of changes in the performance level of the test object when identifying the cause of the mounting error. Conventionally, the measured values by the inspection unit were simply accumulated, and it was difficult to grasp trends such as the deterioration state of individual test objects from the accumulated information. In contrast, with the above configuration, a notification is issued to alert the operator, and measures can be taken such as targeting the test object for maintenance before it becomes defective. As a result, maintenance can be managed to maintain production efficiency.

2 is an explanatory diagram illustrating a configuration of a component mounting machine and functional blocks of a maintenance management device according to an embodiment; FIG. FIG. 2 is a perspective view showing a suction nozzle used in the component mounting machine. FIG. 2 is an explanatory diagram showing the appearance and functional blocks of a nozzle cleaner. 13A to 13C are diagrams showing results of various tests on suction nozzles and statistical information in which the test results are associated with identification information of the suction nozzles. 13 is a flowchart showing a maintenance management process. FIG. 2 is an explanatory diagram showing the appearance and functional blocks of a mounting head used in the component mounting machine. FIG. 2 is an explanatory diagram showing the appearance and functional blocks of a head cleaner. 13A and 13B are diagrams showing results of various inspections of the mounting head and statistical information in which the inspection results are associated with identification information of the mounting head. FIG. 2 is a side view showing a tape feeder used in a component mounting machine. 2 is an explanatory diagram showing the appearance and functional blocks of the feeder maintenance device. FIG. 11A and 11B are diagrams showing the results of various inspections of tape feeders and statistical information in which the inspection results are associated with the identification information of the tape feeders.

1. Embodiment 1-1. Overview of the maintenance management device The maintenance management device manages replacement elements in component mounting machines that make up a production line that produces various board products. The production line produces board products by sequentially transporting circuit boards (hereinafter simply referred to as "boards") Bd in production devices such as component mounting machines, and executing production processes such as mounting processes for each production device. In addition, each of the multiple production devices is connected to be able to communicate with each other and with a host computer (hereinafter referred to as a "host PC").

1, the component mounting machine 10 includes a board transport device 11, a component supply device 12, a component transfer device 13, a nozzle station 14, a component camera 15, and a board camera 16. The board transport device 11 is configured with a belt conveyor or the like, and transports the board Bd sequentially in a transport direction. The board transport device 11 transports the board Bd into the component mounting machine 10 and positions the board Bd at a predetermined position within the machine. After the component mounting process by the component mounting machine 10 is completed, the board transport device 11 transports the board Bd out of the component mounting machine 10.

The component supply device 12 supplies components to be mounted on the board Bd. The component supply device 12 has a number of slots 121 arranged in a line in the X-axis direction. A feeder 90 is replaceably set in each of the slots 121. The feeder 90 is a tape feeder that feeds and moves a carrier tape 95 (see FIG. 9) containing a large number of components, and supplies the components so that they can be picked up at a supply position located at the tip side of the feeder 90. The configuration of the feeder 90 will be described later.

The component transfer device 13 includes a head drive device 131 and a movable stage 132. The head drive device 131 is configured to be able to move the movable stage 132 in the X-axis direction and the Y-axis direction using a linear motion mechanism. A mounting head 80 is replaceably fixed to the movable stage 132 by a clamp member (not shown). The mounting head 80 picks up components supplied by the component supply device 12 and mounts them at a predetermined mounting position on the board Bd.

One or more suction nozzles 70 are removably attached to the mounting head 80. In this embodiment, the mounting head 80 is a rotary type that holds multiple suction nozzles 70 on a circumference centered on the R axis parallel to the Z axis. The configurations of the suction nozzles 70 and mounting head 80 will be described later. The nozzle station 14 holds multiple suction nozzles 70 with the nozzle axis 73 facing downward. The nozzle station 14 is removably installed on the base of the component mounting machine 10.

The component camera 15 and the board camera 16 are digital imaging devices that have imaging elements such as a CCD (Charge Coupled Device) or a CMOS (Complementary Metal Oxide Semiconductor). The component camera 15 and the board camera 16 capture images based on control signals input from the outside. The component camera 15 and the board camera 16 send out image data acquired by capturing images.

The component camera 15 is fixed to the base of the component mounting machine 10 so that its optical axis faces upward in the Z-axis direction. The component camera 15 is configured to be able to image the component held by the suction nozzle 70 from below. The board camera 16 is mounted on the moving stage 132 of the component transfer device 13 so that its optical axis faces downward in the Z-axis direction. The board camera 16 is configured to be able to image the board Bd from above.

The placement control device 17 is mainly composed of a CPU, various memories, and a control circuit. In the placement process of placing components on the board Bd, the placement control device 17 inputs information output from various sensors provided in the component placement machine 10 and the results of recognition processing such as image processing. The placement control device 17 then sends a control signal to the component transfer device 13 based on the control program and predetermined specified placement conditions. This controls the position and rotation angle of the suction nozzle 70 supported by the placement head 80.

1-3. Overview and configuration of the maintenance management device 20 The replaceable elements in the component mounting machine 10 configured as described above need to be properly maintained in performance so that no mounting errors occur during the mounting process by the component mounting machine 10. The replaceable elements in the component mounting machine 10 are replaceably set in the component mounting machine 10. Specifically, the replaceable elements include the suction nozzle 70, the mounting head 80, and the feeder 90.

Other replaceable elements may include the nozzle station 14 that holds multiple suction nozzles 70, the nozzle tool 82 (see FIG. 6) that is replaceably held by the mounting head 80, and the tool station (not shown) that holds the nozzle tool. These replaceable elements may be replaced by the operator or automatically by the component mounting machine 10 or an external device. The maintenance management device 20 statistically grasps the status of replaceable elements such as the suction nozzles 70 to prevent mounting errors from occurring and maintain production efficiency.

As shown in FIG. 1, the maintenance management device 20 includes a storage device 21, an information management unit 22, a nozzle cleaner 30, a head cleaner 40, and a feeder maintenance device 50. In this embodiment, the storage device 21 and the information management unit 22 are incorporated in a host PC that monitors the operating status of the production line and generally manages the production line. The storage device 21 is composed of a hard disk, a flash memory, and the like. The storage device 21 stores information such as the results of inspections of replacement elements (MiN, MiH, MiF), statistical information (MsN, MsH, MsF) generated based on the results of the inspections, and the production plan for the production line.

The information management unit 22 stores in the storage device 21 statistical information (MsN, MsH, MsF) that associates the results of multiple inspections by the inspection device with the identification information of the multiple replacement elements that were the subject of the inspection. The process of updating the statistical information by the information management unit 22 will be described later. In this embodiment, the inspection of the replacement elements is performed by multiple inspection devices that differ for each type of replacement element. Specifically, the inspection devices are the nozzle cleaner 30, the head cleaner 40, and the inspection units 32, 42, and 52 (see Figures 3, 7, and 10) built into the feeder maintenance device 50.

1-4. Configuration of the suction nozzle 70 As shown in Fig. 2, the suction nozzle 70 has a body shaft 71 formed in a cylindrical shape. The body shaft 71 functions as a main body portion held by the mounting head 80. A disk-shaped flange 72 is formed on one axial end side (the lower side in Fig. 2) of the body shaft 71. The suction nozzle 70 has a nozzle shaft 73 formed in a tubular shape that extends in the axial direction from the body shaft 71. The body shaft 71 and the nozzle shaft 73 form a negative pressure flow path in the suction nozzle 70. The nozzle shaft 73 holds a component in contact with its tip by negative pressure supplied via the body shaft 71.

The nozzle shaft 73 is configured to be extendable and retractable in the axial direction relative to the body shaft 71. More specifically, the nozzle shaft 73 is biased in a direction extending from the body shaft 71 by an elastic member (not shown). When a load is applied to the tip of the nozzle shaft 73 toward the body shaft 71, the extension section of the suction nozzle 70, which is configured by the body shaft 71 and the nozzle shaft 73, slides against the body shaft 71 and contracts against the elastic force of the elastic member. An identification code 74 is attached to the top surface of the flange 72. The identification code 74 includes unique information such as the identification information (ID) and type of the suction nozzle 70.

1, the nozzle cleaner 30 is an external device for the component mounting machine 10. In this embodiment, the nozzle cleaner 30 is a nozzle management device that receives the nozzle station 14 holding a plurality of suction nozzles 70 and cleans, inspects, and stores the suction nozzles 70.

The nozzle cleaner 30 also has the function of transferring the stored suction nozzles 70 to the nozzle station 14 upon request, thereby supporting the changeover of the component mounting machine 10. As shown in FIG. 3, the nozzle cleaner 30 includes a cleaning unit 31, an inspection unit 32, a nozzle stocker 33, a nozzle moving device 34, a control device 35, and a discharge box 36.

The cleaning unit 31 cleans the negative pressure flow path and the expandable portion of the suction nozzle 70. More specifically, the cleaning unit 31 cleans and dries the suction nozzle 70 in a cleaning chamber (not shown). In the cleaning process, the cleaning unit 31 cleans the suction nozzle 70 by, for example, circulating high-pressure cleaning fluid (air, cleaning liquid) inside the suction nozzle 70 and spraying high-pressure air or cleaning liquid such as water onto the outer surface of the suction nozzle 70. The cleaning unit 31 also performs a drying process in which the suction nozzle 70 that has been subjected to the cleaning process is dried by blowing off moisture with a blowing device (not shown).

The inspection unit 32 is an inspection device that performs various inspections of the suction nozzle 70 in the nozzle cleaner 30. In this embodiment, the items inspected by the inspection unit 32 include the outer shape of the suction nozzle 70, the flow rate of the negative pressure flow path, and the sliding resistance of the expansion and contraction section, as shown in Table 1 of FIG. 4. More specifically, the inspection unit 32 captures an image of the suction nozzle 70 held by the nozzle movement device 34, for example, with a camera (not shown), and inspects the outer shape of the suction nozzle 70 based on the image data acquired by the image capture. This allows the suction nozzle 70 to be checked for distortion, defects, the presence or absence of attachments, etc.

The inspection unit 32 also uses a load cell (not shown) to detect the load when the nozzle shaft 73 of the suction nozzle 70 slides toward the inside of the body shaft 71. It is assumed that a suction nozzle 70 for which the load cell measurement is greater than a specified value has high sliding resistance due to factors such as dirt on the sliding part. The inspection unit 32 judges the pass/fail status of each type of inspection and records the degree of pass/fail in the pass/fail judgment results. The inspection unit 32 may also perform appropriate types of inspections on the suction nozzle 70 cleaned by the cleaning unit 31 and make another pass/fail judgment.

Specifically, as shown in Table 1 of FIG. 4, the inspection unit 32 records the inspection date and time (d1:h1, d2:h1, ...) and the measurement values of each inspection item for each identification information (ID: Nx511, Nx512, ...) of the suction nozzle 70 being inspected. For example, the measurement values (Sa20, Sa19, ...) of the outer shape of the suction nozzle 70 indicate the degree of deformation relative to the ideal outer shape. The inspection unit 32 records the pass/fail result (○, NG) of each inspection item based on the measurement value and the pass/fail criteria. In other words, each measurement value indicates the degree of pass/fail in the pass/fail judgment results for various inspection items.

The nozzle stocker 33 is a storage facility configured to store multiple suction nozzles. The nozzle stocker 33 transfers the suction nozzles 70 onto storage pallets (not shown) and stores the storage pallets in different storage positions for each of the multiple storage pallets. In this embodiment, the nozzle stocker 33 is provided with a general area 331 where the operator can remove the suction nozzles 70, and a management area 332 where only an administrator with specified authority can remove the suction nozzles 70.

The general area 331 of the nozzle stocker 33 is an area where an operator can access the storage pallet by opening the door of the nozzle cleaner 30. In contrast, the management area 332 of the nozzle stocker 33 is an area where access to the storage pallet is restricted by a locked door that can be unlocked with a key held by an administrator, for example. In this way, the nozzle stocker 33 is configured to be able to manage the suction nozzles 70 stored in the management area 332 so that the operator cannot freely remove them.

The nozzle moving device 34 moves the suction nozzle 70 between the cleaning unit 31, the inspection unit 32, the nozzle stocker 33, the installation position of the nozzle station 14, and the discharge box 36. The nozzle moving device 34 has a mechanism for gripping each suction nozzle 70 with a holding chuck (not shown) and moving the suction nozzle 70 in three-dimensional directions. This allows the suction nozzle 70 to be transferred appropriately between the nozzle station 14 and a pallet depending on cleaning, inspection, or storage.

The nozzle moving device 34 further includes a mechanism for moving the storage pallet to the general area 331 or the management area 332 of the nozzle stocker 33. The nozzle moving device 34 also includes a code reader (not shown) capable of reading the identification code 74 of the suction nozzle 70 and the identification code attached to the nozzle station 14.

The control device 35 is a controller mainly composed of a CPU, various memories, and a control circuit. The control device 35 is connected to a host computer, which is an external device, so that it can communicate with it and share various information. The control device 35 controls various cleaning processes, various inspection processes, and storage processes including the transfer of the suction nozzles 70. The discharge box 36 stores suction nozzles 70 that have been determined to be defective based on the inspection results by the inspection unit 32, for example. The discharge box 36 is divided into multiple spaces and is used, for example, to sort the nozzles according to the cause of the defect.

1, the information management unit 22 of the maintenance management device 20 stores statistical information and the like in which the results of multiple inspections by an inspection device (such as the inspection unit 32) are associated with each piece of identification information of multiple replacement elements (such as the suction nozzle 70). In the following, for ease of explanation, the "replacement element" in this embodiment will be described as the "suction nozzle 70."

The information management unit 22 generates or updates statistical information MsN of the suction nozzle 70 when the inspection unit 32 inspects multiple suction nozzles 70 and obtains or updates the inspection results MiN (see Table 1 in FIG. 4). As a result, the statistical information MsN statistically indicates the results of multiple inspections for each inspection item (external shape, flow rate, sliding resistance) of the identification information (Nx511, Nx512, ...) of the suction nozzle 70, as shown in Table 2 in FIG. 4. In this way, the statistical information MsN can be used for various judgments and analyses as an indication of the performance level of the suction nozzle 70, which is a replacement element.

In this embodiment, the information management unit 22 associates the pass rate, which indicates the ratio of the number of times pass/fail judgments are performed on the suction nozzle 70, with the identification information of the suction nozzle 70 and stores it as statistical information MsN. After being judged as failing in a pass/fail judgment, the suction nozzle 70 stored in the nozzle cleaner 30 may be subjected to a predetermined cleaning process, for example, by the cleaning unit 31, and judged as passing in a new pass/fail judgment.

The stored suction nozzles 70 may include those that were rejected as a result of pass/fail judgment, but were subsequently repaired by an operator and then approved for use. Although suction nozzles 70 such as those described above are currently approved for use in mounting processes, they are recorded as having been judged defective in the past due to some factor. If the pass rate of a suction nozzle 70 decreases, there is a high probability that it will be judged defective in subsequent inspections, depending on the factor of the defect; in other words, it is considered that it may be a factor in mounting errors if used in mounting processes.

The information management unit 22 then determines whether or not to allow the suction nozzle 70 to be used in the mounting process based on the pass rate for each inspection item of the suction nozzle 70. For example, by excluding a suction nozzle 70 whose pass rate for a certain inspection item is below a threshold from use in the mounting process, it is possible to prevent mounting errors from occurring. In addition, since unnecessary cleaning processes can be prevented from being performed, management costs can be reduced.

In addition, in this embodiment, the information management unit 22 associates a recovery rate, which indicates the recovery rate of the current state of the suction nozzle 70 relative to the reference state, with the identification information of the suction nozzle 70 based on the degree of pass/fail in the result of the pass/fail judgment for the suction nozzle 70, and stores it as statistical information MsN. Replacement elements such as the suction nozzle 70 are cleaned and adjusted every time they are used in a mounting process, for example, to maintain proper performance. However, even if maintenance such as cleaning is performed, there are cases in which performance is not fully restored.

The above "reference state" refers to a state in which a replaceable element such as the suction nozzle 70 exhibits initial or ideal performance. In other words, if the inspection item is the external shape of the suction nozzle 70, the reference state corresponds to the ideal external shape of the suction nozzle 70. Also, if the inspection item is the flow rate of the negative pressure flow path of the suction nozzle 70, the reference state corresponds to the flow rate according to the specifications or the flow rate when newly received. And the recovery rate indicates to what extent the current state of the suction nozzle 70 has been restored to the reference state by maintenance such as cleaning of the suction nozzle 70.

When the recovery rate of the suction nozzle 70 decreases, depending on the cause of the defect, there is a high probability that subsequent maintenance such as cleaning will not be able to restore the nozzle to a standard state; in other words, it is considered that this could be a cause of a mounting error when used in a mounting process. Therefore, the information management unit 22 determines whether or not to allow the suction nozzle 70 to be used in a mounting process based on the recovery rate for each test item of the suction nozzle 70. For example, by excluding a suction nozzle 70 whose recovery rate for a certain test item falls below a threshold from use in the mounting process, it is possible to prevent the occurrence of a mounting error. In addition, since unnecessary cleaning processes can be prevented from being performed, management costs can be reduced.

The maintenance management process by the maintenance management device 20 will be described with reference to FIG. 5. The maintenance management process is executed, for example, when a plurality of suction nozzles 70 are carried into the nozzle cleaner 30 while being held in the nozzle station 14. Here, it is assumed that an operating mode is selected in the nozzle cleaner 30 for carrying out maintenance such as cleaning on the carried-in suction nozzles 70. The maintenance management device 20 first acquires identification information (S11) as a maintenance process (step 10 (hereinafter, "step" will be abbreviated as "S")).

In detail, the information management unit 22 acquires the identification information from the nozzle cleaner 30 by having the nozzle cleaner 30 read the identification code 74 of the suction nozzle 70 using a code reader. Next, the information management unit 22 sets the type, combination, and number of times to perform cleaning for the suction nozzle 70 based on the statistical information MsN indicating the results of past inspections associated with the read identification information (S12). Specifically, if the pass rate or recovery rate of the suction nozzle 70 is lower than a specified value, oil mist is set as the cleaning fluid, and the flow rate of the oil mist, cleaning time, and number of times to perform cleaning are set according to the recovery rate, etc.

Then, the nozzle cleaner 30 performs the maintenance set in S12 (S13). As a result, the suction nozzles 70 undergo maintenance such as cleaning based on the statistical information MsN. Note that the nozzle cleaner 30 may set a maintenance type for each of the multiple suction nozzles 70 held in the loaded nozzle station 14 (S12), sort them into corresponding pallets, and then collectively perform the corresponding maintenance such as cleaning (S13).

Then, the maintenance management device 20 proceeds to the inspection process (S20). The inspection unit 32 of the nozzle cleaner 30 reads the identification code 74 with a code reader to obtain the identification information of the suction nozzle 70 to be inspected (S21). The inspection unit 32 then executes various inspection processes for the predetermined inspection items (external shape, flow rate, sliding resistance) (S22). As a result, the inspection unit 32 records the measurement values for each inspection item, and judges the pass/fail (○, NG) of each inspection item based on the measurement values and the pass/fail criteria.

The results MiN of various tests of the suction nozzle 70 are updated by adding the measured values and the judgment results. Accordingly, the statistical information MsN of the suction nozzle 70 is also updated in the same way. Specifically, the current values of "Latest result", "Pass rate", and "Recovery rate" are updated. In addition, the "average value" and "trend" of the measured values obtained by collating statistics on only the most recent N test results, and the "average value" and "trend" of the measured values obtained by collating statistics on all test results are updated.

The above "average value" is a value obtained by averaging the measured values. The above "trend" is a value that indicates the degree of change in the measured values. Specifically, the information management unit 22 may calculate the above "trend" as the slope of a straight line obtained by approximating three or more measured values using the least squares method, or may calculate the above "trend" as the slope of a tangent to the last measured value obtained by curve approximation of three or more measured values.

The maintenance management device 20 sets the type of disposition (storage, re-cleaning, repair, disposal, etc.) for the suction nozzle 70 based on the pass/fail results of the inspection items of the suction nozzle 70 (S23). Specifically, if the suction nozzle 70 passes all the inspection items, the maintenance management device 20 sets the disposition to store the suction nozzle 70 so that it can be used for the next and subsequent mounting processes (S23). The maintenance management device 20 transfers the suction nozzle 70 to the corresponding pallet so that the suction nozzle 70 is stored in the general area 331 of the nozzle stocker 33 (S24).

On the other hand, if the suction nozzle 70 does not pass all the inspection items, the maintenance management device 20 sets the type of disposition for the suction nozzle 70, such as re-cleaning with the cleaning unit 31, cleaning with an ultrasonic cleaner, repair by an operator, or disposal, based on the pass rate, etc. (S23). Specifically, if the sliding resistance of the extension/contraction section fails and the recovery rate is within a predetermined value from the threshold, the maintenance management device 20 sets the type of disposition to change the cleaning fluid to oil mist and perform the cleaning process again, or to perform cleaning with an ultrasonic cleaner.

In response to this, if the maintenance management device 20 finds any defects in the external shape of the suction nozzle 70 or if the difference between the recovery rate of the failed inspection item and the threshold value is equal to or exceeds a predetermined value, it sets the type of disposal to have the suction nozzle 70 repaired by an operator or to move the suction nozzle 70 to a disposal box. Furthermore, if, for example, the pass rate of the failed inspection item is lower than a second threshold value different from the pass/fail judgment threshold value, the maintenance management device 20 transfers the suction nozzle 70 to the corresponding pallet so that the suction nozzle 70 is stored in the management area 332 of the nozzle stocker 33 (S24).

In this way, by storing a specific suction nozzle 70 in the management area 332, the maintenance management device 20 restricts the suction nozzle 70 from being mistakenly taken out and used in subsequent mounting processes. As described above, when the maintenance management device 20 moves the suction nozzle 70 from the inspection unit 32 to the nozzle stocker 33 using the nozzle moving device 34, it switches between the general area 331 and the management area 332 based on the statistical information MsN related to the suction nozzle 70. In this way, based on the statistical information MsN, suction nozzles 70 that have potential defective factors, such as those that are difficult to determine as defective at first glance, can be managed under specified authority. This makes it possible to prevent a defective suction nozzle 70 from being used in subsequent mounting processes due to an operator's mistaken recognition.

The maintenance management device 20 then determines in S23 that the suction nozzle 70 is defective and should be discarded (including storage in the management area 332), and determines whether the number of types of suction nozzles that can be substituted for the suction nozzle 70 in stock is less than a predetermined value (S25). The suction nozzles 70 are classified into various types according to the type of component to be picked up, and some types are substitutable for each other. Furthermore, even if the suction nozzles 70 have been subjected to maintenance such as cleaning, they are discarded when a certain degree of deterioration has occurred. Therefore, even if the number of discarded suction nozzles 70 reaches a certain value, it is necessary to secure the quantity required for subsequent mounting processes.

Therefore, when the inventory quantity of a type that can be substituted for the suction nozzle 70 is less than a predetermined value (S25: Yes), the maintenance management device 20 transmits information regarding the shortage of suction nozzles 70 (S26). Specifically, the maintenance management device 20 transmits information including the type and quantity of the suction nozzles 70 that are in short supply to, for example, an operator or a nearby warehouse that stores suction nozzles 70 of the replaceable type. As a result, suction nozzles 70 are dispensed from the warehouse in response to the shortage information, and the operator is guided to collect the suction nozzles 70 from the warehouse. In addition, the above-mentioned shortage information may be used to automatically order suction nozzles 70 of the type that is in short supply.

Next, if the suction nozzle 70 passes all the inspection items, or if the stock quantity of the type that can replace the suction nozzle 70 to be discarded is equal to or greater than a predetermined value (S25: No), or after sending information about the shortage in S26, the information management unit 22 of the maintenance management device 20 determines whether the results of the inspection of the suction nozzle 70 in the statistical information MsN satisfy a certain criterion (S27). The above-mentioned "certain criterion" is a criterion for whether or not to notify as an inspection result, and is set arbitrarily by the operator or administrator separately from the criterion for pass/fail of the measurement value related to the inspection item.

Specifically, certain criteria may be set for each inspection item, such as a value indicating that the measured value is significantly below the expected range, a value indicating that the measured value passes but the pass rate or recovery rate has deteriorated, and a value indicating that the suction nozzle 70 to be discarded has been determined to be stored in the management area 332 of the nozzle stocker 33. If the results of the inspection of the suction nozzle 70 in the statistical information MsN do not satisfy certain criteria (S27: No), the information management unit 22 notifies the operator of the corresponding part of the identification information of the suction nozzle 70 and the statistical information MsN (S28).

As a result, the operator can obtain information about the suction nozzle 70 in question by receiving a notification based on the statistical information MsN, in addition to determining whether the measured values for the inspection items are pass or fail. Conventionally, the measured values from the inspection unit 32 were simply accumulated, and it was difficult to grasp trends, such as the deterioration state of individual suction nozzles 70, from the accumulated information. In contrast, with the above-described configuration, the operator is alerted by the notification, and measures can be taken, such as targeting the suction nozzle 70 for maintenance before it becomes defective.

The maintenance management device 20 executes the maintenance process (S10) and the inspection process (S20) as described above, and then ends the maintenance management process. In addition, the suction nozzles 70 for which a disposition has been set in S23 to perform maintenance such as cleaning again are cleaned by the cleaning unit 31 and are again judged to be pass or fail by the inspection unit 32. The maintenance management device 20 further inputs the results of such a second inspection and updates the statistical information MsN. Then, the maintenance management process is executed in the same manner as described above.

As described above, the maintenance management device 20 is configured to select an operating mode for performing maintenance such as cleaning in the maintenance management process, and to sequentially perform the maintenance process (S10) and the inspection process (S20). In contrast, the maintenance management device 20 may perform an inspection process related to at least one of various inspection items (external shape, flow rate, sliding resistance, etc.) in the maintenance management process, and then set a type of disposal (storage, cleaning, repair, disposal, etc.) based on the pass/fail result of the inspection, and perform the maintenance process (S10) as necessary.

2. First modified embodiment 2-1. Overview of the first modified embodiment In the embodiment, a configuration has been described in which the replaceable element of the component mounting machine 10 targeted by the maintenance management device 20 is the suction nozzle 70. In contrast, the replaceable element of the component mounting machine 10 targeted by the maintenance management device 20 may be the mounting head 80. The following describes the first modified embodiment in which the "replaceable element" is the "mounting head 80."

2-2. Configuration of the mounting head 80 As shown in FIG. 6, the mounting head 80 has a head body 81 that is clamped to the moving stage 132 of the component transfer device 13. The head body 81 is provided with a nozzle tool 82, a tool driving device 83, and an air supply device 84. The nozzle tool 82 holds a plurality of suction nozzles 70 at equal intervals in the circumferential direction on a circumference concentric with the R axis so that the nozzle tool 82 can slide in the Z axis direction and can rotate around the θ axis. There are two types of mounting heads 80: one in which the nozzle tool 82 is detachable, and one in which the nozzle tool 82 is fixed integrally. The θ axis is the rotation axis of the suction nozzles 70 that is parallel to the R axis and passes through the axis of each suction nozzle 70.

The tool driving device 83 is composed of a motor, a reduction gear, a linear motion mechanism, etc., and determines the angle of the suction nozzle 70 around the θ axis and positions it in the Z axis direction. The tool driving device 83 includes an R axis driving unit 831, a θ axis driving unit 832, and a Z axis driving unit 833. The R axis driving unit 831 rotates the nozzle tool 82 around the R axis relative to the head body 81. The θ axis driving unit 832 rotates each of the multiple suction nozzles 70 around the θ axis. The Z axis driving unit 833 raises and lowers one of the multiple suction nozzles 70 that is indexed to a specified position on the head body 81 in the Z axis direction.

The air supply device 84 generates negative or positive pressure using an air pump (not shown) and supplies negative or positive pressure to the suction nozzle 70 via an air flow path formed inside the mounting head 80. The air supply device 84 includes a negative pressure flow path 841, a positive pressure flow path 842, and a valve 843. The negative pressure flow path 841 is an air flow path used when supplying negative pressure to the suction nozzle 70. The positive pressure flow path 842 is an air flow path used when supplying positive pressure to the suction nozzle 70. The valve 843 is operated by, for example, a stepping motor (not shown), and switches between supplying negative pressure, supplying positive pressure, and blocking the air flow path.

1, the head cleaner 40 is an external device for the component mounting machine 10. In this embodiment, the head cleaner 40 is a head management device that receives the mounting head 80 and performs cleaning and inspection of the mounting head 80. When the mounting head 80 is attached to the head cleaner 40 by the clamping mechanism, the head cleaner 40 operates the tool driving device 83 of the mounting head 80 and is also capable of circulating air through the air flow path of the air supply device 84.

As shown in FIG. 7, the head cleaner 40 includes a cleaning unit 41, an inspection unit 42, and a control device 43. The cleaning unit 41 cleans the negative pressure flow path 841 and the positive pressure flow path 842 of the air supply device 84 in the mounting head 80. In detail, the cleaning unit 41 supplies cleaning fluid consisting of positive pressure air or oil mist to the air flow path of the mounting head 80 during the cleaning process. In addition, the cleaning unit 41 appropriately operates the tool driving device 83 and the air supply device 84 while supplying the cleaning fluid during the cleaning process.

Specifically, while supplying the cleaning fluid, the cleaning unit 41 operates the Z-axis drive unit 833 of the tool drive device 83 to raise and lower the nozzle shaft holding the suction nozzle 70, and operates the valve 843 of the air supply device 84 to switch the flow path of the cleaning fluid. Note that the type of cleaning fluid supplied in the cleaning process, the supply amount, and the operation of the tool drive device 83 and air supply device 84 during supply are appropriately set depending on the cleaning type.

The inspection unit 42 is an inspection device that performs various inspections of the mounting head 80 in the head cleaner 40. In this embodiment, the items inspected by the inspection unit 42 include the drive load of the drive units (R-axis drive unit 831, θ-axis drive unit 832, Z-axis drive unit 833) of the mounting head 80, the flow rate of the negative pressure flow path 841, and the flow rate of the positive pressure flow path 842, as shown in Table 1 of FIG. 8. In detail, the inspection unit 42 instructs the drive unit of the mounting head 80 to perform a specified operation, for example, and inspects the drive load of the drive unit based on the time required for that operation. This allows the degree of dirt on the drive unit to be confirmed.

The inspection unit 42 also supplies negative or positive pressure to the air flow path of the mounting head 80, and measures the air flow rate in the negative pressure flow path 841 and the positive pressure flow path 842 using a flow rate measurement sensor (not shown). In the inspection process, the inspection unit 42 rotates the nozzle tool 82 around the R axis while supplying negative or positive pressure, rotates the nozzle shaft holding the suction nozzle 70 around the θ axis, and raises and lowers it in the Z axis direction to inspect whether the flow rate is appropriate in various states. If the flow rate in the air flow path of the mounting head 80 is reduced, it is assumed that the air flow path is dirty or the lubricity of the moving parts has decreased.

The inspection unit 42 judges the pass/fail result of each type of inspection and records the degree of pass/fail in the pass/fail judgment result. The inspection unit 42 may also perform an appropriate type of inspection on the mounting head 80 cleaned by the cleaning unit 41 and judge the pass/fail result again. Specifically, as shown in Table 1 of FIG. 8, the inspection unit 42 records the inspection date and time (d4:h1, d5:h1, ...) and the measurement value of each inspection item for each identification information (ID:Hx621, Hx622, ...) of the mounting head 80 being inspected.

For example, the measured values of the drive load of the drive unit of the mounting head 80 (DAa30, DAa29, ...) indicate the drive load of the R-axis drive unit 831 and the like. The drive load of the drive units includes the drive load of the θ-axis drive unit 832 and the Z-axis drive unit 833 (not shown) in addition to the R-axis drive unit 831. The inspection unit 42 records the pass/fail (○, NG) of each inspection item based on the measured values and the pass/fail criteria. In other words, each measured value indicates the degree of pass/fail in the pass/fail judgment results for various inspection items.

The control device 43 is a controller that is mainly composed of a CPU, various memories, and a control circuit. The control device 43 is connected to an external device, a host PC, so that it can communicate with the host PC, and is configured to be able to share various information. The control device 43 controls various cleaning processes and various inspection processes. The control device 43 also communicates with the mounting head 80 to obtain the identification information (ID) stored in the mounting head 80.

2-4. Maintenance management processing by the maintenance management device 20 As described above, when the "replacement element" is the "mounting head 80," the information management section 22 generates or updates statistical information MsH of the mounting head 80 when the inspection unit 42 inspects the mounting head 80 and the inspection result MiH (see Table 1 in FIG. 8) is acquired or updated. As a result, the statistical information MsH statistically indicates the results of multiple inspections for each inspection item (driving load, negative pressure flow rate, positive pressure flow rate) of the identification information (Hx621, Hx622, ...) of the mounting head 80, as shown in Table 2 in FIG. 8.

In this modified embodiment, the information management unit 22 associates the pass rate, which indicates the ratio of the number of pass/fail judgments performed on the mounting head 80 to the number of pass/fail judgments, with the identification information of the mounting head 80 and stores it as statistical information MsH. After being judged as failing the pass/fail judgment, the mounting head 80 that has been brought into the head cleaner 40 may be subjected to a predetermined cleaning process, for example, by the cleaning unit 41, and may be judged as passing in another pass/fail judgment.

Note that the pass rate, recovery rate, average value and trend of the most recent N times, and average value and trend of the total number in the statistical information MsH of the mounting head 80 correspond to the statistical information MsH of the suction nozzle 70 exemplified in the embodiment, and therefore detailed explanations are omitted. Similarly, the maintenance management process by the maintenance management device 20 described above is substantially the same as the aspect exemplified in the embodiment in which the suction nozzle 70 is the replacement element, and therefore detailed explanations are omitted. Below, only the differences will be explained.

Here, in the inspection step (S20) of the maintenance management process in this embodiment, the type of disposal for the suction nozzle 70, which is a replacement element, is set (S23), and then the suction nozzle 70 is transferred to the corresponding pallet (S24). In contrast, the head cleaner 40 that targets the mounting head 80 does not have a storage unit for storing the mounting head 80, so the above-mentioned transfer process of the replacement element (S24) is omitted.

The type of disposal set in S23 may include repair involving replacement of replacement parts constituting the mounting head 80 as the repair of the mounting head 80, which is the replacement element. Therefore, in S25, the maintenance management device 20 determines in S23 based on the statistical information MsH to repair the mounting head 80, and determines whether the inventory of replacement parts required for the repair is less than a predetermined value (S25). If the inventory is less than the predetermined value (S25: Yes), the maintenance management device 20 transmits information regarding a shortage of replacement parts (S26). The information regarding the shortage may also be used to automatically order the missing replacement parts.

3. Second modified mode of the embodiment 3-1. Overview of the second modified mode In the embodiment, a configuration has been described in which the replaceable element of the component mounting machine 10 targeted by the maintenance management device 20 is the suction nozzle 70. In contrast, the replaceable element of the component mounting machine 10 targeted by the maintenance management device 20 may be the feeder 90. The following describes the second modified mode in which the "replaceable element" is the "feeder 90."

3-2. Configuration of Feeder 90 As shown in Fig. 9, the feeder 90 includes a feeder body 91, a drive unit 92, and a tape sensor 93. The feeder body 91 is set in a slot 121 of the component supply device 12. The feeder body 91 is formed with rails that support an inserted carrier tape (hereinafter simply referred to as "tape") 95. The drive unit 92 is disposed on the front side of the feeder body 91, which supplies the components so that they can be picked up. The drive unit 92 has a plurality of sprockets provided below the feeder body 91.

Each of the multiple sprockets engages with an engagement hole provided in the tape 95. The drive unit 92 rotates a stepping motor, which serves as a drive source (not shown), to rotate the multiple sprockets a predetermined amount in a predetermined direction. This allows the feeder 90 to move and feed the tape 95 along the rails of the feeder body 91.

In this modified embodiment, the tape sensor 93 detects the joint of the tape 95. Some types of feeders 90 splice together the ends of multiple tapes 95 to prevent interruptions in the supply of parts due to a shortage of parts. As described above, a metal splicing member is used for the splicing process that joins the tape ends together. The tape sensor 93 detects that the splicing member (i.e., the joint of the tape 95) has passed a predetermined position on the rail of the feeder body 91 by detecting a change in capacitance with the detection unit.

The feeder 90 is of a type that automatically loads the tape 95 by feeding and moving the tape 95 toward the component removal section when the tape 95 is inserted into the tape insertion section located at the rear of the feeder body 91. In the case of such an autoloading type, a drive device similar to the drive device 92 described above is provided below the rail near the insertion section. In addition, in the case of the autoloading type, the tape sensor 93 can be used to detect the presence or absence of the tape 95 and the end of the tape.

3-3. Configuration of the feeder maintenance device 50 As shown in FIG. 1, the feeder maintenance device 50 is an external device for the component mounting machine 10. In this modified embodiment, the feeder maintenance device 50 receives the feeder 90 with its cover removed and performs cleaning, adjustment, and inspection of the feeder 90. When the feeder 90 is carried in, the feeder maintenance device 50 operates the drive device 92 of the feeder 90 and becomes capable of acquiring the detection value of the tape sensor 93. The feeder maintenance device 50 includes a cleaning unit 51, an inspection unit 52, an adjustment unit 53, and a control device 54.

The cleaning unit 51 cleans the drive device 92 of the feeder 90 and the detection unit of the tape sensor 93. In detail, in the cleaning process, the cleaning unit 51 blows air against the sprocket of the drive device 92 and removes foreign matter such as dust. In addition to the sprocket of the drive device 92, the objects to be cleaned include a transmission mechanism such as a gear that transmits the rotational force of the drive source to the sprocket, and a roller (not shown) that assists the feed movement of the tape 95. In addition, in the cleaning process, the cleaning unit 51 sprays cleaning liquid onto the meshing parts of the gears in the drive device 92 to remove old lubricant adhering to the meshing parts. The type of cleaning fluid (air, cleaning liquid) used in the cleaning process, the supply amount, and the cleaning parts are appropriately set depending on the cleaning type.

The inspection unit 52 is an inspection device that performs various inspections of the feeder 90 in the feeder maintenance device 50. In this modified embodiment, the items inspected by the inspection unit 52 include the operating accuracy of the drive device 92 of the feeder 90, the driving load of the drive device 92, and the detection sensitivity of the tape sensor 93, as shown in Table 1 of FIG. 11. In detail, the inspection unit 52 detects the operating accuracy and driving load of the drive device 92, for example, by operating the drive device 92 of the feeder 90, based on the amount of actual feed movement of the tape 95 or the inspection master tape, and the torque required for the operation. This allows the degree of dirt and lubricity of the drive device 92 to be confirmed.

In addition, the inspection unit 52 measures the detection sensitivity of the tape sensor 93 by having the tape sensor 93 detect a metal specimen. As a result, if the tape sensor 93 cannot normally detect the joint of the tape 95, it is assumed that dirt has adhered to the detection portion of the tape sensor 93.

The inspection unit 52 judges the pass/fail status of each type of inspection and records the degree of pass/fail in the pass/fail judgment results. The inspection unit 52 may also perform an appropriate type of inspection on the feeder 90 cleaned by the cleaning unit 51 or the feeder 90 adjusted by the adjustment unit 53 described below, and make another pass/fail judgment. Specifically, as shown in Table 1 in FIG. 11, the inspection unit 52 records the inspection date and time (d7:h1, d8:h1, ...) and the measurement value of each inspection item for each identification information (ID: Fx841, Fx842, ...) of the feeder 90 being inspected.

For example, the measured values (Ca15, Ca14, ...) of the operating accuracy of the drive unit 92 of the feeder 90 indicate the deviation of the actual movement amount of the tape 95 relative to the amount of operation of the drive source in the drive unit 92. The inspection unit 52 records the pass/fail (○, NG) of each inspection item based on the measured values and the pass/fail criteria. In other words, each measured value indicates the degree of pass/fail in the pass/fail judgment results for various inspection items.

The adjustment unit 53 adjusts the drive device 92 of the feeder 90. In detail, in the adjustment process, the adjustment unit 53 calculates a correction value for the command amount of operation to the drive source according to the angle of the sprocket relative to the feeder body 91 in order to rotate the sprocket of the drive device 92 by a fixed amount to accurately pitch feed the tape 95. In addition, in the adjustment process, the adjustment unit 53 supplies lubricant to the meshing portion of the gears in the drive device 92. The type of lubricant used in the adjustment process, the supply amount, and the supply location are appropriately set depending on the adjustment type.

The control device 54 is a controller mainly composed of a CPU, various memories, and a control circuit. The control device 54 is connected to an external device, a host PC, so that it can communicate with the host PC, and is configured to be able to share various information. The control device 54 controls various cleaning processes and various inspection processes. The control device 54 also communicates with the feeder 90 to obtain the identification information (ID) stored in the feeder 90.

3-4. Maintenance management processing by the maintenance management device 20 As described above, when the "replacement element" is the "feeder 90," the information management unit 22 generates or updates statistical information MsF of the feeder 90 when the feeder 90 is inspected by the inspection unit 52 and the inspection result MiF (see Table 1 in FIG. 11) is acquired or updated. As a result, the statistical information MsF statistically indicates the results of multiple inspections for each inspection item (operation accuracy, drive load, detection sensitivity) of the identification information (Fx841, Fx842, ...) of the feeder 90, as shown in Table 2 in FIG. 11.

In this modified embodiment, the information management unit 22 associates the pass rate, which indicates the ratio of the number of pass/fail judgments performed on the feeder 90 to the number of pass/fail judgments, with the identification information of the feeder 90 and stores it as statistical information MsF. After being judged as failing the pass/fail judgment, the feeder 90 brought into the feeder maintenance device 50 may be judged as passing in a second pass/fail judgment after undergoing, for example, a predetermined cleaning process by the cleaning unit 51 or a predetermined adjustment process by the adjustment unit 53.

Note that the pass rate, recovery rate, average value and trend of the most recent N times, and average value and trend of the total number in the statistical information MsF of the feeder 90 correspond to the statistical information MsF of the suction nozzle 70 exemplified in the embodiment, and therefore detailed explanations are omitted. Similarly, the maintenance management process by the maintenance management device 20 described above is substantially the same as the example in which the mounting head 80 is exemplified as a replaceable element in the first modified embodiment, and therefore detailed explanations are omitted.

4. Other Modifications In the embodiment, the first modification, and the second modification, the maintenance management device 20 is configured such that the information management unit 22 is incorporated in the host PC. In contrast, the information management unit 22 may be incorporated in the device (30, 40, 50) that includes the inspection device (inspection unit 32, 42, 52). In a configuration in which the information management unit 22 is incorporated in each device, each device may cooperate with each other to form a single maintenance management device 20, or each device may operate independently.

The inspection device (inspection unit 32, 42, 52) may also be configured so that at least some of its functions are incorporated into a production device such as a component mounting machine. For example, if the mounting head 80 is provided with a pressure sensor that measures the air pressure in the air flow path, the maintenance management device 20 may use the pressure sensor to measure the air flow rate in the negative pressure flow path 841 and the positive pressure flow path 842. The maintenance management device 20 may also use the component camera 15 or the board camera 16 to capture an image of the suction nozzle 70 and inspect the external shape of the suction nozzle 70 based on the image data acquired by the image capture. Furthermore, if a calibration load cell is provided inside the component mounting machine to adjust the pressing force when the suction nozzle 70 mounts a component on a board, for example, the maintenance management device 20 may use the load cell to measure the sliding resistance of the suction nozzle 70.

Furthermore, the cleaning units 31, 41, and 51 may be configured so that at least some of their functions are incorporated into a production device such as a component mounting machine. For example, when positive pressure air is supplied to the mounting head 80 of the component mounting machine, the maintenance management device 20 may supply this air as a cleaning fluid to the mounting head 80 and the suction nozzle 70 held by the mounting head 80, and clean the air flow path formed in the mounting head 80 and the negative pressure flow path of the suction nozzle 70. The inspection process and cleaning process in the production device as described above can be performed appropriately between successive production processes (for example, mounting processes by the component mounting machine). In addition, the inspection process and cleaning process in the production device can be performed by using existing equipment, which can reduce equipment costs. In addition, the production device may be configured so that dedicated inspection units and cleaning units are provided.

The replaceable element targeted by the maintenance management device 20 is the suction nozzle 70 in the embodiment, the mounting head 80 in the first modified embodiment, and the feeder 90 in the second modified embodiment. In contrast, as described in the embodiment, the maintenance management device 20 is set in the component mounting machine 10 in an exchangeable manner, and the replaceable element may be a nozzle station 14, a nozzle tool 82, a tool station, or a work head other than the mounting head 80 (inspection head, adhesive application head), as long as it is a component to be inspected.

In the embodiments, the statistical information (MsN, MsH, MsF) includes the pass rate, recovery rate, average value, and trend. In contrast, various information can be added to the statistical information (MsN, MsH, MsF) as long as the information is further associated with the identification information of the replacement element. Specifically, information indicating the mounting conditions (movement speed, number of uses, frequency of use, etc.) when the replacement element was used in the mounting process, the management status and supplier of the replacement element, the operator who set the replacement element on the component mounting machine 10 and the time, the type of maintenance performed in the past, the worker who performed the maintenance, etc. is expected.

By adding the above information to the statistical information (MsN, MsH, MsF), for example, when a defect occurs, it is possible to assist in identifying the cause of the defect based on information common to replacement elements in which a similar defect has occurred. Once the cause of the defect has been identified, it is possible to prevent the occurrence of an installation error by changing the installation conditions, etc. In this way, the maintenance management device 20 can improve the manageability of maintenance by statistically managing various information. As a result, it is possible to prevent the occurrence of installation errors and maintain production efficiency.

5. Effects of the Configuration of the Embodiments and Modified Examples The maintenance management device 20 described above includes an inspection device (e.g., inspection units 32, 42, 52) that inspects replaceable elements (e.g., suction nozzle 70, mounting head 80, feeder 90) in a component mounting machine 10 that mounts components on a board Bd, and an information management unit 22 that stores statistical information MsN, MsH, and MsF that associates the results of multiple inspections by the inspection device with identification information of the multiple replaceable elements that are the subject of inspection.

According to this configuration, the results of the inspection by the inspection unit 32 are associated with the identification information (ID) of the corresponding replacement element (suction nozzle 70, mounting head 80, feeder 90, etc.) and stored as statistical information MsN, MsH, MsF. Such statistical information MsN, MsH, MsF is useful information that can be used for analysis to grasp the performance level of the replacement element and the trend of change in the performance level of the replacement element when identifying the cause of a mounting error. For example, grasping the trend of change in the performance level of a certain replacement element can be used as a basis for determining whether or not the replacement element can be used in a mounting process. As a result, maintenance can be managed to maintain production efficiency.

10: component mounting machine, 20: maintenance management device, 21: storage device, 22: information management section, 30: nozzle cleaner, 31: cleaning unit, 32: inspection unit (inspection device), 33: nozzle stocker (storage), 331: general area, 332: management area, 34: nozzle moving device (moving device), 35: control device, 36: discharge box, 40: head cleaner, 41: cleaning unit, 42: inspection unit (inspection device), 43: control device, 50: feeder maintenance device, 51: cleaning unit, 52: inspection unit (inspection device), 53: adjustment unit, 54: control device, 70: suction nozzle (replacement element), 71: body shaft, 72: flange, 73: nozzle shaft, 74: identification code, 80: mounting head (replacement element), 81: head body, 82: nozzle tool, 83: tool drive device, 831: R-axis drive unit, 832: θ-axis drive unit, 833: Z-axis drive unit, 84: Air supply unit, 841: Negative pressure flow path, 842: Positive pressure flow path, 843: Valve, 90: Tape feeder (replacement element), 91: Feeder body, 92: Drive unit, 93: Tape sensor, 95: Carrier tape

Claims (6)

an inspection device for inspecting a replaceable element in a component mounting machine that mounts components on a circuit board, the inspection device determining whether the replaceable element is good or bad;
an information management unit that stores statistical information that associates trends in results of a plurality of tests performed by the test device with each of the identification information of the plurality of replacement elements;
A maintenance management device that adds a type of maintenance that has been performed in the past on the switching element to the statistical information stored in the information management unit. an inspection device for inspecting a replaceable element in a component mounting machine that mounts components on a circuit board, the inspection device determining whether the replaceable element is good or bad;
an information management unit that stores statistical information that associates trends in results of a plurality of tests performed by the test device with each of the identification information of the plurality of replacement elements;
a maintenance management device that adds at least one of an operator who set the replacement element in the component mounting machine and a time to the statistical information stored in the information management section; an inspection device which is a replaceable element in a component mounting machine which mounts components on a circuit board and which inspects a suction nozzle which picks up the components and judges whether the suction nozzle is good or bad;
an information management unit that stores statistical information that associates trends in results of a plurality of inspections performed by the inspection device with each of the identification information of the plurality of suction nozzles,
The maintenance management device adds a type of maintenance that has been performed in the past on the suction nozzle to the statistical information stored in the information management unit. an inspection device which is a replaceable element in a component mounting machine which mounts components on a circuit board and which inspects a suction nozzle which picks up the components and judges whether the suction nozzle is good or bad;
an information management unit that stores statistical information that associates trends in results of a plurality of inspections performed by the inspection device with each of the identification information of the plurality of suction nozzles,
a maintenance management device that adds at least one of an operator who set the suction nozzle on the component mounting machine and a time to the statistical information stored in the information management section; an inspection device for inspecting a nozzle tool, which is a replaceable element in a component mounting machine that mounts components on a circuit board and has a plurality of suction nozzles that suck up the components, and for determining whether the nozzle tool is good or bad;
an information management unit that stores statistical information that associates trends in results of a plurality of inspections performed by the inspection device with each of the identification information of the plurality of nozzle tools,
A maintenance management device that adds a type of maintenance that has been performed on the nozzle tool in the past to the statistical information stored in the information management unit. an inspection device for inspecting a nozzle tool, which is a replaceable element in a component mounting machine that mounts components on a circuit board and has a plurality of suction nozzles that suck up the components, and for determining whether the nozzle tool is good or bad;
an information management unit that stores statistical information that associates trends in results of a plurality of inspections performed by the inspection device with each of the identification information of the plurality of nozzle tools,
a maintenance management device that adds at least one of an operator who set the nozzle tool on the component mounting machine and a time to the statistical information stored in the information management unit.

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