JP7535148B2 - Board Work System - Google Patents

Description

This specification discloses a board working system.

Conventionally, in a mounting device that uses a suction nozzle to pick up components supplied from a tape feeder and mount them on a board, a system has been proposed in which the tape feeder can move between a supply stage where the components are supplied and a maintenance stage where maintenance is performed (see, for example, Patent Document 1). In this system, when a component runs out or during a changeover, the tape feeder is automatically transported from the maintenance stage to the supply stage and automatically replaced, thereby preventing a decrease in operating rate.

Japanese Patent Application Publication No. 04-127600

In such a board work system, it is important not only to prevent a decrease in the operating rate but also to improve the quality of work, such as mounting accuracy, and maintenance of units such as tape feeders is also necessary to improve the quality of work. However, the above-mentioned system does not take into consideration replacement and maintenance of tape feeders at times other than when parts run out or when changing over, or maintenance of units used in production other than tape feeders. In addition, if the timing of such maintenance is determined by the worker and the worker is required to replace the unit, work may have to be interrupted depending on the timing of replacement, leading to a decrease in the operating rate.

The primary objective of this disclosure is to improve work quality without reducing operating rates by enabling maintenance of work units at appropriate times.

This disclosure takes the following steps to achieve the above-mentioned primary objective:

The board work system disclosed herein is a board work system including a work device that uses replaceable work units to perform a specified work on a board, and includes a storage unit that stores the work units, a maintenance device that performs maintenance on the work units, a transport device that can transport the work units, a determination unit that determines when maintenance is required for the work unit used by the work device based on quality information related to the work quality of the specified work, and a control unit that controls the transport device, the work device, and the maintenance device when the determination unit determines that maintenance is required, to transport a replacement work unit from the storage unit, transport it to the work device and replace it with the work unit that was used in the work device, and transport the replaced used work unit to the maintenance device for maintenance.

The substrate work system disclosed herein determines when maintenance is required for a work unit used in a work device based on quality information of a specified work performed on a substrate. If it is determined that maintenance is required, a replacement work unit is removed from a storage section, transported to the work device and replaced with the work unit used in the work device, and the replaced, used work unit is transported to the maintenance device for maintenance. This allows maintenance of the work unit to be performed at an appropriate time based on the quality information, improving work quality. Furthermore, without the need for replacement or maintenance by a worker, the work unit can be automatically replaced and maintenance performed at an appropriate time according to the work situation. Therefore, work quality can be improved without reducing the operating rate of the work device.

FIG. 1 is an explanatory diagram showing an example of a schematic configuration of a board working system 10. 1 is a schematic diagram of a work line 20, a management device 90, and an automated guided vehicle 100. FIG. FIG. 2 is a schematic diagram of a printing device 30. FIG. 2 is a schematic diagram of a mounting device 40. FIG. 2 is a schematic diagram of a feeder 50. FIG. 2 is a schematic configuration diagram of a nozzle replacement unit 150. FIG. 2 is an explanatory diagram showing the connection relationship of the board working system 10. FIG. 6 is an explanatory diagram showing an example of print inspection result information. FIG. 11 is an explanatory diagram showing an example of mounting work status information. FIG. 11 is an explanatory diagram showing an example of mounting inspection result information. 11 is a flowchart showing a mask maintenance processing routine. 13 is a flowchart showing a nozzle/feeder maintenance processing routine. 10 is a flowchart showing a maintenance processing routine according to a modified example.

Next, an embodiment of the present disclosure will be described with reference to the drawings. FIG. 1 is an explanatory diagram showing an example of the general configuration of a board work system 10, FIG. 2 is a schematic diagram of a work line 20, a management device 90, and an automated guided vehicle 100, FIG. 3 is a schematic diagram of a printing device 30, and FIG. 4 is a schematic diagram of a mounting device 40. FIG. 5 is a schematic diagram of a feeder 50, FIG. 6 is a schematic diagram of a nozzle replacement unit 150, and FIG. 7 is an explanatory diagram showing the connection relationship of the board work system 10. In addition, in FIGS. 1 to 4, the left-right direction is the X-axis direction, the front-back direction is the Y-axis direction, and the up-down direction is the Z-axis direction.

As shown in FIG. 1, the board work system 10 comprises a work line 20, a storage facility 70, a maintenance area 80, a management device 90, and an automated guided vehicle 100. The work line 20 comprises multiple work devices that perform various tasks. The storage facility 70 stores various work units required for the tasks. The maintenance area 80 comprises multiple maintenance devices that perform maintenance on the various work units. The management device 90 manages the entire system. The automated guided vehicle 100 transports the various work units between the work line 20, the storage facility 70, and the maintenance area 80.

As shown in FIG. 2, the work line 20 includes a printing device 30, a printing inspection device 22, a temporary storage area 24, multiple mounting devices 40, and a mounting inspection device 26, which are arranged in this order in the transport direction (X-axis direction) of the board S (see FIG. 4). The temporary storage area 24 includes a feeder table 24a (see FIG. 7), and multiple feeders 50 can be transferred from the automated guided vehicle 100 to the feeder table 24a. The work line 20 also includes an exchange robot 60 that can move along an X-axis rail 25 provided in the X-axis direction and automatically exchanges the feeders 50 between the temporary storage area 24 and each mounting device 20. In addition to these devices, the work line 20 may also include a reflow device that performs a reflow process on the board S on which components are mounted.

The printing device 30 includes a substrate transport device 31 that transports and fixes the substrate S, a print head 33 to which a squeegee 34 is attached, a head moving device 35 that moves the print head 33 in the XY direction, and a fixed frame 36 to which a screen mask M is fixed. The screen mask M has pattern holes (openings) formed therein according to the wiring pattern, and is fixed to the fixed frame 36 with a predetermined tension. The printing device 30 also includes an extrusion device 37 that extrudes the screen mask M together with the fixed frame 36 forward, and a print control unit 39 (see FIG. 7) that controls the entire device. The printing device 30 prints solder on the substrate S by pushing the solder into the pattern holes of the screen mask M using the squeegee 34. The extrusion device 37 includes an abutment plate that abuts against the fixed frame 36, a cylinder that moves the abutment plate along the Y-axis direction, and the like. When the automated guided vehicle 100 is positioned in front of it, the printing device 30 can push the screen mask M forward using the push-out device 37, thereby transferring the screen mask M to the automated guided vehicle 100. The print inspection device 22 inspects the condition of the solder printed on the board S by the printing device 30.

As shown in FIG. 4, the mounting device 40 includes a board conveying device 41 that conveys and fixes the board S, a feeder table 42 on which a plurality of feeders 50 that supply components are mounted, a mounting head 43 having a nozzle 44 (see FIG. 7) that picks up the components supplied by the feeder 50, and a head moving device 45 that moves the mounting head 43 in the XY direction. The mounting device 40 also includes a parts camera 46 that is installed between the feeder 50 and the board conveying device 41 and picks up the components picked up by the nozzle 44 from below, a nozzle station 47 that houses a plurality of types of nozzles 44 according to the types of components to be picked up, and a mounting control unit 49 (see FIG. 7) that controls the entire device. The mounting device 40 picks up the components supplied from the feeder 50 with the nozzle 44 according to the type of component and mounts them on the board S. The mounting inspection device 26 inspects the mounting state of the components mounted by the mounting device 40.

As shown in FIG. 5, the feeder 50 includes a tape reel 52, a tape feed mechanism 53, a connector 55, and a rail member 57. The tape reel 52 is wound with a tape having a plurality of recesses formed at equal intervals along the longitudinal direction to accommodate components. The tape feed mechanism 53 feeds out a predetermined amount of tape from the tape reel 52 by driving a drive motor (not shown), and sequentially supplies the components accommodated in the tape to the supply position. The rail member 57 is provided at the lower end of the feeder 50 and extends in the mounting direction of the feeder 50. The feeder 50 is set by inserting the rail member 57 into the slot 42a of the feeder table 42 of the mounting device 40 or the slot of the feeder table 24a of the temporary storage area 24. In addition, when the feeder 50 is set, the connector 55 is electrically connected to the connector 42b of the feeder table 42 or the connector of the feeder table 24a. Information such as the type, number, and position of the feeders 50 set on the feeder table 24a in the temporary storage area 24 is managed by the management device 90.

In addition, in this embodiment, the nozzle replacement unit 150 is configured similarly to the feeder 50 and can be used to replace the nozzle 44. As shown in FIG. 6, the nozzle replacement unit 150 is provided with a connector 155 and a rail member 157, as in the feeder 50, and is provided with a disk-shaped nozzle station 154 at the location where the tape feed mechanism 53 is disposed. The nozzle station 154 has a plurality of recesses provided on its side surface to which the nozzles 44 are detachably attached, and is connected to the output shaft of the same drive motor as the tape feed mechanism 53. The nozzle replacement unit 150 supplies each nozzle 44 to the supply position in sequence by rotating the nozzle station 154 by driving the drive motor while attached to the mounting device 40. The mounting device 40 not only attaches the nozzle 44 supplied to the supply position to the mounting head 43, but also can switch the nozzle 44 between the nozzle stations 47 and 154. The mounting device 40 may be configured to automatically replace the nozzle station 47.

As shown in FIG. 7, the exchange robot 60 includes a robot movement mechanism 62 that moves the exchange robot 60 along the X-axis rail 25, a feeder transfer mechanism 64 that transfers the feeder 50 to the mounting device 40 or the temporary storage area 24, and a robot control unit 66 that controls the entire robot. The robot movement mechanism 62 includes a drive motor as a drive source and guide rollers that guide the movement along the X-axis rail 25. The feeder transfer mechanism 64 includes a clamping unit that clamps the feeder 50 and a slider that moves the clamping unit in the Y-axis direction.

Although not shown, the storage 70 includes a mask storage section for storing the screen mask M fixed to the fixed frame 36, a feeder storage section for storing the feeder 50, and the like. Storage information regarding the type and position of the screen mask M stored in the mask storage section and storage information regarding the type and position of the feeder 50 stored in the feeder storage section are managed by the management device 90.

As shown in FIG. 7, the maintenance area 80 includes a mask maintenance device 81, a feeder maintenance device 84, and a nozzle maintenance device 87. The mask maintenance device 81 includes a mask maintenance section 82 that performs maintenance on the screen mask M, and a control section 83 that controls the entire device. Although not shown, the mask maintenance section 82 cleans the screen mask M by removing solder adhering to the surface and solder clogging the pattern holes, for example by supplying a cleaning agent to the screen mask M. The mask maintenance section 82 may also re-fix the cleaned screen mask M to the fixing frame 36 with a predetermined tension.

The feeder maintenance device 84 includes a feeder maintenance unit 85 that performs maintenance on the feeder 50, and a control unit 86 that controls the entire device. Although not shown, the feeder maintenance unit 85 blows air onto the tape feed mechanism 53 of the feeder 50 to blow away dirt and dust adhering to the sprockets, etc., and then cleans the feeder 50 by supplying a maintenance liquid in which grease is dissolved in a solvent (cleaning agent).

The nozzle maintenance device 87 includes a nozzle maintenance section 88 that performs maintenance on the nozzle 44, and a control section 89 that controls the entire device. Although not shown, the nozzle maintenance section 88 blows air onto the nozzle 44 removed from the nozzle replacement unit 150 to blow away dust and dirt adhering to the nozzle 44, and then cleans the nozzle 44 by supplying maintenance liquid to the internal passage of the nozzle 44. The nozzle maintenance device 87 may store the nozzle 44 for which maintenance has been completed in the nozzle replacement unit 150, and store the nozzle replacement unit 150 in the storage 70. Alternatively, the nozzle maintenance device 87 may include a nozzle storage section that stores the nozzle 44.

As shown in FIG. 7, the management device 90 includes a management control unit 91, a memory unit 92, a communication unit 93, an input device 94, and a display 95. The management control unit 91 is configured as a microprocessor centered on a CPU. The memory unit 92 is a device such as an HDD that stores various information. The communication unit 93 is connected to each device so that it can communicate with each device by wire or wirelessly. The input device 94 includes a keyboard and a mouse through which the worker inputs various commands. The display 95 is a liquid crystal display device that displays various information. The memory unit 92 stores a production program for the board S. The production program specifies the number of components mounted for each component type, the mounting order, the mounting position, the number of boards S produced, etc. for each type (board type) of board S. The management control unit 91 transmits information such as work instructions and production programs to each device via the communication unit 93, and receives information on the work status and work results from each device.

2, the unmanned guided vehicle 100 includes a vehicle body 101 to which wheels 102 are attached, a mounting table 103 arranged on the vehicle body 101, a push-out device 104 capable of pushing out a work unit mounted on the mounting table 103, a vehicle control unit 106 (see FIG. 7) that controls the entire vehicle, and a communication unit 108 (see FIG. 7) that performs wireless communication with the management device 90. The unmanned guided vehicle 100 can automatically travel by transmitting the power of a driving motor (not shown) to the wheels 102, and transmits the current position and vehicle status to the management device 90 via the communication unit 108. The push-out device 104 also includes a transfer member that clamps the feeder 50 on the mounting table 103 and abuts against the screen mask M (fixed frame 36), a slider that moves the transfer member in the Y-axis direction, and the like. The unmanned transport vehicle 100 can place the feeder 50 and the screen mask M on the front and rear loading sections 103a and 103b of the loading platform 103 with the transfer member positioned in the center, and a sensor (not shown) detects whether the feeder 50 and the screen mask M are loaded. The loading platform 103 is raised and lowered by a lifting device (not shown). The unmanned transport vehicle 100 can transfer the screen mask M between the printing device 30, the mask maintenance device 81, and the mask storage section of the storage 70 and the loading platform 103. The unmanned transport vehicle 100 can transfer the feeder 50 and the nozzle replacement unit 150 between the temporary storage area 24, the feeder maintenance device 84, the nozzle maintenance device 87, the feeder storage section of the storage 70, and the loading platform 103.

Next, the operation of the mounting system 10 thus configured will be described. In the mounting system 10, each device performs work based on information such as work instructions and production programs transmitted from the management control unit 91 of the management device 90. In addition, the management control unit 91 creates information on the quality of each work. The management control unit 91 receives information on the printing inspection result for each board S from the printing inspection device 22 and creates the printing inspection result information shown in FIG. 8, receives information on the mounting work for each board S from the mounting device 40 and creates the mounting work status information shown in FIG. 9, and receives information on the mounting inspection result for each board S from the mounting inspection device 26 and creates the mounting inspection result information shown in FIG. 10. These pieces of information are stored in the memory unit 92. The printing inspection result information in FIG. 8 is information that associates the board ID of the board S, the mask ID of the screen mask M, the printing pattern ID for each printing location, and information on the printing state such as width misalignment, position misalignment, and height misalignment. The mounting work status information in FIG. 9 is information that associates a board ID, a component type, a component number, a mounting position, a feeder ID of the feeder 50 that supplied the component, a nozzle ID of the nozzle 44 that picked up the component, and a suction state. The suction state is information about the positional and angular misalignment of the component obtained by photographing the component picked up by the nozzle 44 with the parts camera 46 and processing the photographed image. The mounting inspection result information in FIG. 10 is information that associates a board ID, a component type, a component number, a mounting position, and a mounting state. The mounting state is information about the positional and angular misalignment of the component measured by the mounting inspection device 26.

Next, the operation related to the maintenance of various units in the mounting system 10 will be described. FIG. 11 is a flowchart showing a mask maintenance processing routine. This routine is executed by the management control unit 91 of the management device 90 when the above-mentioned printing inspection result information is updated. In this routine, the management control unit 91 first analyzes the printing inspection result information (S100) and determines whether or not there is a sign of an abnormality caused by the screen mask M (S110). Here, if the screen mask M is deformed such as distorted, the pattern hole widens or shifts in position, the solder application area increases and the solder width shift abnormality occurs, or the solder application position shifts and the solder position shift abnormality occurs. Also, if the solder is clogged in the pattern hole, the solder application area decreases and the solder width shift abnormality occurs, and if the thickness becomes thin due to the surface of the screen mask M being scraped, the filling height of the solder in the pattern hole decreases and the solder height abnormality occurs. Such abnormalities caused by the screen mask M often occur as the screen mask M is used repeatedly. Therefore, the management control unit 91 can analyze the print inspection result information and determine whether there is a pre-existing condition before an abnormality occurs based on the tendency of changes in the numerical values of the width misalignment, position misalignment, and height misalignment. If the management control unit 91 determines in S110 that there is no pre-existing condition, it ends the mask maintenance processing routine.

In addition, when the management control unit 91 determines in S110 that the warning state is present, it determines that it is time for maintenance of the screen mask M (S120), transmits an instruction to the automated guided vehicle 100 to remove the screen mask M with the same pattern holes formed therein from the mask storage unit of the storage facility 70 and transport it to the printing device 30 (S130), and waits for the automated guided vehicle 100 to arrive at the printing device 30 (S140). The automated guided vehicle 100 that receives the instruction in S130 automatically removes the screen mask M from the mask storage unit and transports it to the printing device 30. Then, when the automated guided vehicle 100 arrives at the printing device 30, the management control unit 91 waits for the screen mask M to be replaced based on the printing status of the printing device 30 (S150). When the management control unit 91 determines that the substrate S being printed by the printing device 30 has been removed and can be replaced, it transmits an instruction to the printing device 30 and the automated guided vehicle 100 to replace the used screen mask M used in the printing device 30 with the new screen mask M that has been transported this time (S160), and waits for the replacement to be completed (S170). For example, when a new screen mask M is placed on the rear placement unit 103b, the automated guided vehicle 100 first receives the used screen mask M pushed out from the printing device 30 by moving the front placement unit 103a toward the printing device 30. Next, the automated guided vehicle 100 replaces the screen mask M by pushing the new screen mask M with the push-out device 104 toward the printing device 30 and carrying it into the printing device 30.

When the screen mask M is replaced in this way, the management control unit 91 transmits an instruction to the unmanned guided vehicle 100 to transport the used screen mask M to the mask maintenance device 81 (S180), and waits for the unmanned guided vehicle 100 to arrive at the mask maintenance device 81 (S190). When the unmanned guided vehicle 100 arrives at the mask maintenance device 81, the management control unit 91 transmits an instruction to the mask maintenance device 81 and the unmanned guided vehicle 100 to transfer the used screen mask M to the mask maintenance device 81 and perform maintenance (S195), and ends the mask maintenance processing routine. As a result, when a sign of an abnormality caused by the screen mask M is determined, the screen mask M can be automatically replaced and maintained, so that frequent occurrence of quality abnormalities such as printing defects can be prevented in advance. In addition, the screen mask M can be automatically replaced and maintained at an appropriate timing according to the working status of the printing device 30 without requiring replacement or maintenance by an operator. When maintenance of the screen mask M is completed, the management control unit 91 can send an instruction to the automated guided vehicle 100 to transport the screen mask M to the mask storage section of the storage facility 70, and store the screen mask M in the mask storage section. This allows the automated guided vehicle 100 to automatically perform the process of replacing the screen mask M in the printing device 30, maintaining it, and then storing it, without the need for an operator.

Also, FIG. 12 is a flowchart showing the nozzle/feeder maintenance processing routine. This routine is executed by the management control unit 91 when the above-mentioned mounting work state information or mounting inspection result information is updated. In this routine, the management control unit 91 first analyzes the mounting work state information or mounting inspection result information (S200) and judges whether or not the mounting work state is in a predictive state where a symptom of an abnormality caused by a specific feeder 50 is observed (S210), and whether or not the mounting work state is in a predictive state where a symptom of an abnormality caused by a specific nozzle 44 is observed (S220). The management control unit 91 may analyze both the mounting work state information and the mounting inspection result information in S200. Here, if a feed failure occurs in the tape feed mechanism 53 of the feeder 50, a deviation occurs in the supply position of the components supplied from the feeder 50, and there is a tendency for the positional deviation and angle deviation of the components supplied from the feeder 50 to occur frequently. In addition, if the nozzle 44 is bent or has a lot of dust or dirt attached thereto, there is a tendency for suction failure to occur, and there is a tendency for the positional deviation and angle deviation of the components sucked by the nozzle 44 to occur frequently. For this reason, the management control unit 91 can analyze the mounting work status information or mounting inspection result information, and determine a predictive state for a specific feeder 50 or a specific nozzle 44 from the tendency of changes in the numerical values of positional misalignment and angle misalignment, and the presence or absence of a correlation with the feeder ID or nozzle ID. If the management control unit 91 determines that none of the predictive states exist in S210, S210, it ends the nozzle/feeder maintenance processing routine.

When the management control unit 91 determines in S210 that a specific feeder 50 is in a predictive state, it determines that it is time for maintenance of the specific feeder 50 and sets it as the work unit to be maintained (S230). When the management control unit 91 determines in S220 that a specific nozzle 44 is in a predictive state, it determines that it is time for maintenance of the specific nozzle 44 and sets it as the work unit to be maintained (S240). Next, the management control unit 91 transmits an instruction to the unmanned guided vehicle 100 to transport the replacement work unit from the feeder storage unit of the storage 70 to the temporary storage area 24 (S250). If the maintenance target is a feeder 50, the management control unit 91 instructs the removal and transportation of a replacement feeder 50 containing the same type of parts, and if the maintenance target is a nozzle 44, it instructs the removal and transportation of a nozzle replacement unit 150 containing the same type of nozzle 44. Next, the management control unit 91 sends an instruction to the mounting device 40 and the exchange robot 60 to transport the used work unit to the temporary storage site 24 (S260), and waits for the automated guided vehicle 100 to arrive at the temporary storage site 24 (S270). The automated guided vehicle 100 waits for the exchange robot 60 to complete the work of transferring the used work unit to the temporary storage site 24 by communicating with the management control unit 91, and then moves to the front of the temporary storage site 24. Then, when the automated guided vehicle 100 arrives at the temporary storage site 24, the management control unit 91 sends an instruction to the automated guided vehicle 100 to exchange the used work unit with the new work unit that was just transported (S280), and waits for the exchange to be completed (S290).

When the working unit is replaced in this way, the management control unit 91 transmits an instruction to the unmanned guided vehicle 100 to transport the used working unit to the corresponding maintenance device (S300), and waits for the unmanned guided vehicle 100 to arrive at the maintenance device (S310). If the maintenance target is a feeder 50, the management control unit 91 instructs the transportation to the feeder maintenance device 84, and if the maintenance target is a nozzle 44 (nozzle replacement unit 150), the management control unit 91 instructs the transportation to the nozzle maintenance device 87, and so on. Then, when the unmanned guided vehicle 100 arrives at the maintenance device, an instruction to transfer the used working unit to the maintenance device and perform maintenance is transmitted to the maintenance device and the unmanned guided vehicle 100 (S320), and the nozzle/feeder maintenance processing routine is terminated. As a result, at the timing when a sign of an abnormality caused by a specific feeder 50 or a specific nozzle 44 is determined, the feeder 50 or nozzle 44 can be automatically replaced and maintained, so that frequent occurrence of quality abnormalities such as mounting defects can be prevented in advance. When maintenance of the feeder 50 and the nozzle 44 is completed, the management control unit 91 can send an instruction to the automated guided vehicle 100 to transport them to the storage facility 70 and store them there. This allows the automated guided vehicle 100 to automatically perform the replacement and maintenance of the feeder 50 and the nozzle 44, as well as subsequent storage, without the need for an operator.

The correspondence between the components of this embodiment and the components of this disclosure will now be clarified. In this embodiment, the printing device 30 and mounting device 40 correspond to the work device, the storage 70 corresponds to the storage unit, the maintenance devices 81, 84, and 87 correspond to the maintenance devices, the automated guided vehicle 100 corresponds to the transport device, the management control unit 91 that executes the processes of S100 to S120 of the mask maintenance processing routine and S200 to S240 of the nozzle/feeder maintenance processing routine corresponds to the determination unit, and the management control unit 91 that executes the processes from S130 onwards of the mask maintenance processing routine and the processes from S250 onwards of the nozzle/feeder maintenance processing routine corresponds to the control unit.

In the mounting system 10 of the present embodiment described above, when the maintenance time for the screen mask M is determined based on the printing inspection result information, the automatic guided vehicle 100 automatically exchanges the replacement screen mask M with the used screen mask M, and the mask maintenance device 81 maintains the used screen mask M. This can improve the printing quality. In addition, in the mounting system 10, when the maintenance time for the feeder 50 is determined based on the mounting work status information or the mounting inspection result information, the automatic guided vehicle 100 automatically exchanges the replacement feeder 50 with the used feeder 50, and the feeder maintenance device 84 maintains the used feeder 50. Similarly, the maintenance time for the nozzle 44 is determined and automatic replacement and maintenance are performed. This can improve the mounting quality.

In addition, the mounting system 10 can automatically replace and maintain each work unit at an appropriate time according to the work situation, without requiring replacement or maintenance by an operator, so it is possible to improve printing quality and mounting quality without reducing the operating rate of the printing device 30 and mounting device 40.

In addition, the mounting system 10 performs maintenance on a particular feeder 50 when the particular feeder 50 is in a predictive state, and performs maintenance on a particular nozzle 44 when the particular nozzle 44 is in a predictive state, thereby preventing abnormalities from occurring.

It goes without saying that the mounting system 10 disclosed herein is in no way limited to the above-described embodiment, and may be implemented in various forms as long as they fall within the technical scope of the present disclosure.

For example, in the above embodiment, the maintenance timing of both the feeder 50 and the nozzle 44 is determined, but this is not limited thereto, and the maintenance timing of only one of them may be determined, or the maintenance timing of another work unit such as the head 43 may be determined. In addition, the maintenance timing of the work unit in either one of the work devices, the printing device 30 or the mounting device 40, may be determined.

In the above-described embodiment, the maintenance timing of the working unit being used by the working device is determined, but this is not limited to this. The maintenance timing of the working unit stored in the storage 70 may be determined, such as the screen mask M that was used in the printing device 30 and then removed for a change in the board type or the like and stored in the storage 70, or the feeder 50 or nozzle 44 (nozzle replacement unit 150) that was used in the mounting device 40 and then removed for a change in the board type or the like and stored in the storage 70. FIG. 13 is a flowchart showing a periodic maintenance processing routine of a modified example. This processing is executed by the management control unit 91 of the management device 90 at regular intervals.

In this regular maintenance processing routine, the management control unit 91 first selects a work unit stored in the storage 70 as the processing target (S400). The management control unit 91 selects, for example, a new work unit stored in the storage 70 as the processing target. Next, the management control unit 91 acquires the number of uses and the usage time of the selected work unit (S410). The number of uses is the number of times printing (number of prints) is performed on the substrate S using the screen mask M, the number of parts supplied by the feeder 50, the number of parts adsorbed by the nozzle 44, etc., and is reset by maintenance. The usage time is the time from when the work unit is attached to the work device and the work on the first substrate S is started to when the work unit is removed from the work device, etc. Next, the management control unit 91 determines whether the number of uses of the work unit is a predetermined number or more (S420) and whether the usage time of the work unit is a predetermined time or more (S430). When the management control unit 91 determines that the number of uses is equal to or greater than a predetermined number of times or the usage time is equal to or greater than a predetermined time, it determines that it is time for regular maintenance of the selected work unit (S440), and when it determines that the number of uses is not equal to or greater than a predetermined number of times and the usage time is not equal to or greater than a predetermined time, it ends the regular maintenance processing routine. The management control unit 91, which has determined that it is time for regular maintenance, transmits an instruction to the unmanned guided vehicle 100 to take out the work unit from the storage 70 and transport it to the corresponding maintenance device (S450), and waits for the unmanned guided vehicle 100 to arrive at the maintenance device (S460). Then, when the unmanned guided vehicle 100 arrives at the maintenance device, the management control unit 91 transmits an instruction to the maintenance device and the unmanned guided vehicle 100 to transfer the work unit to the maintenance device and perform maintenance (S470), and ends the regular maintenance processing routine. This makes it possible to reliably perform maintenance of the work unit at regular timing without requiring transportation or maintenance by an operator. In addition, there is no effect on the operation rate of the work device. Therefore, it is possible to improve the work quality without reducing the operation rate. Note that the determination is not limited to using both the number of uses and the duration of use, and it may be possible to determine the time for maintenance using either the number of uses or the duration of use. It may also be possible to determine that it is time for maintenance when the period of storage in the storage facility 70 is longer than a predetermined period.

The determination of when to perform maintenance based on the number of times of use or the duration of use may also be applied to a work unit being used by a work device. That is, the management control unit 91 may determine when to perform regular maintenance on a work unit being used by a work device based on either or both of the number of times of use and the duration of use, and when it is determined that it is time for regular maintenance, the automatic guided vehicle 100 may automatically replace the work unit and perform maintenance.

In the above-described embodiment, the working unit is transported by an automated guided vehicle 100 capable of automatic travel, but any device capable of automatically transporting the working unit may be used, and the working unit may be transported by a conveyor device or an automatic flying object such as a drone. In addition, an exchange robot 60 is provided on the mounting line 20, and the automated guided vehicle 100 transfers the feeder 50 and the like to the temporary storage area 24, but this is not limited, and the automated guided vehicle 100 may directly transfer the feeder 50 and the like to each mounting device 40.

In the board work system disclosed herein, the work device is a mounting device that uses a feeder that supplies components and a nozzle that picks up the components as the work unit, and performs mounting work in which the components supplied from the feeder are picked up by the nozzle and mounted on the board as the specified work, and the determination unit can also determine the maintenance timing for the feeder and the nozzle based on status information related to at least one of the pickup status of the components and the mounting status of the components as the quality information. This allows the feeder and nozzle used in the mounting work of the mounting device to be automatically replaced and maintained at the appropriate time, thereby improving the mounting quality without reducing the operation rate of the mounting device.

In the board work system disclosed herein, the determination unit can determine whether or not at least one of the pickup state and the mounting state is in a predictive state prior to an abnormal state based on the state information, and determine that it is time for maintenance of a particular feeder when the components supplied from the particular feeder are in the predictive state, and determine that it is time for maintenance of the particular nozzle when the components picked up by the particular nozzle are in the predictive state. This allows maintenance to be performed before an abnormality caused by the feeder or nozzle occurs. This makes it possible to prevent abnormalities caused by the feeder or nozzle from occurring, and further improve mounting quality while further suppressing a decrease in the operating rate of the mounting device.

In the substrate work system of the present disclosure, the work device is a printing device that uses a mask with an opening formed therein as the work unit, and performs a printing operation in which a viscous fluid is printed on the substrate by filling the opening of the mask with the viscous fluid as the specified operation, and the determination unit can also determine the maintenance timing of the mask based on status information on the printing status of the viscous fluid as the quality information. This allows the mask used in the printing operation to be automatically replaced and maintained at an appropriate time, thereby improving printing accuracy without reducing the operating rate of the printing device.

The board work system disclosed herein is a board work system equipped with a work device that performs a specified work on a board using replaceable work units, and is equipped with a storage unit that stores the work units, a maintenance device that performs maintenance on the work units, a transport device that can transport the work units, a determination unit that determines when regular maintenance is due for the work units stored in the storage unit, and a control unit that controls the transport device and the maintenance device when the determination unit determines that it is time for maintenance, so that the work unit to be maintained is removed from the storage unit and transported to the maintenance device for maintenance.

When the board work system of the present disclosure determines that it is time for regular maintenance of a work unit stored in the storage section, it removes the work unit to be maintained from the storage section and transports it to a maintenance device to perform the maintenance. This makes it possible to use the work unit that has undergone regular maintenance on the work device, which can lead to improved work quality. In addition, since the work unit can be automatically replaced and maintained at regular intervals without the need for transportation or maintenance by a worker, it is possible to ensure that there is no impact on the operating rate of the work device. Therefore, it is possible to improve the quality of work without reducing the operating rate. Note that regular maintenance can be determined based on the number of times and/or the duration of use of the work unit.

This disclosure is applicable to technical fields in which a given operation is performed on a substrate using an interchangeable operating unit.

10 Board work system, 20 Work line, 22 Printing inspection device, 24 Temporary storage area, 24a Feeder table, 25 X-axis rail, 26 Mounting inspection device, 30 Printing device, 31 Board transport device, 33 Printing head, 34 Squeegee, 35 Head moving device, 36 Fixed frame, 37 Extrusion device, 39 Printing control unit, 40 Mounting device, 41 Board transport device, 42 Feeder table, 42a Slot, 42b Connector, 43 Mounting head, 44 Nozzle, 45 Head moving device, 46 Parts camera, 47 Nozzle station, 49 Mounting control unit, 50 Feeder, 52 Tape reel, 53 Tape feed mechanism, 55, 155 Connector, 57, 157 Rail member, 60 Exchange robot, 62 Robot moving mechanism, 64 Feeder transfer mechanism, 66 Robot control unit, 70 Storage, 80 Maintenance area, 81 mask maintenance device, 82 mask maintenance unit, 83, 86, 89 control unit, 84 feeder maintenance device, 85 feeder maintenance unit, 87 nozzle maintenance device, 88 nozzle maintenance unit, 90 management device, 91 management control unit, 92 memory unit, 93 communication unit, 94 input device, 95 display, 100 automated guided vehicle, 101 vehicle body unit, 102 wheels, 103 placement table, 103a, 103b placement unit, 104 extrusion device, 106 vehicle control unit, 108 communication unit, 150 nozzle replacement unit, 154 nozzle station, M screen mask, S substrate.

Claims (4)

A substrate working system including a working device that performs a predetermined operation on a substrate using an exchangeable working unit,
A storage unit for storing the operational unit;
a maintenance device for performing maintenance on the operational unit;
A transport device capable of transporting the operational unit;
a determination unit that determines a time for periodic maintenance of the operational unit stored in the storage unit based on at least one of the number of times the operational unit has been used and the duration of use of the operational unit;
a control unit that controls the transport device and the maintenance device so that, when the determination unit determines that it is time for maintenance, the transport device carries out the operation unit that is the maintenance target from the storage unit, transports it to the maintenance device, and hands it over to the maintenance device, and the maintenance device performs maintenance on the operation unit;
Equipped with
The determination unit and the control unit are a control unit of a management device that manages the entire board working system.
Board work system. 2. The board working system according to claim 1,
the work device is a mounting device that uses a feeder that supplies components as the work unit and performs a mounting operation of mounting the components supplied from the feeder onto the board as the predetermined operation,
the number of uses is the number of parts supplied by the feeder,
A board working system, wherein the usage time is the time from when the operational unit is attached to the working device and work on a first board is started to when the operational unit is detached from the working device. 3. The board working system according to claim 1,
the working device is a mounting device that uses a nozzle for suctioning a component as the working unit, and performs a mounting operation of suctioning the component by the nozzle and mounting it on the board as the predetermined operation,
the number of uses is the number of times the nozzle has picked up the component,
A board working system, wherein the usage time is the time from when the operational unit is attached to the working device and work on a first board is started to when the operational unit is detached from the working device. 2. The board working system according to claim 1,
the working device is a printing device that uses a mask having openings formed therein as the working unit, and performs a printing operation of printing the viscous fluid on the substrate by filling the openings of the mask with a viscous fluid as the predetermined operation,
the number of uses is the number of times the mask is used to print on the substrate,
A board working system, wherein the usage time is the time from when the operational unit is attached to the working device and work on a first board is started to when the operational unit is detached from the working device.

Images