JP5788246B2 - Electronic component mounting system - Google Patents

Description

  The present invention relates to an electronic component mounting system for mounting electronic components on a circuit board.

  Many electronic component mounting systems include a plurality of work execution devices that perform work necessary for mounting electronic components on a circuit board, and information processing that processes information necessary for each of the work execution devices. And a structure in which each of the plurality of work execution devices is controlled based on information processed by the information processing device. As described above, the electronic component mounting system is configured by many devices, and the electronic components are mounted on the circuit board by the continuous operation, processing, and the like of these many devices. For this reason, the operation of the system may stop due to a failure of one of the many devices constituting the electronic component mounting system, and it is important to manage the conditions of these many devices. . In view of this, in the electronic component mounting system, as described in the following patent documents, the malfunctions of many devices are determined based on information on the operating states of many devices constituting the system. There is something.

JP 2004-246727 A

  In the electronic component mounting system described in the above-mentioned patent document, it is determined whether the device is normal or defective based on information on the operating state of the work execution device or the like, and whether or not the device is likely to be defective. Can also be determined. Based on the determination result, it is possible to determine whether or not the apparatus is to be maintained. However, for example, even if it is determined that a certain device is likely to be defective, it is not known how much time is left before the device becomes defective, and maintenance can be performed at an appropriate timing. It was difficult. This invention is made | formed in view of such a situation, and makes it a subject to provide the electronic component mounting system which can perform a maintenance at an appropriate timing.

In order to solve the above problems, each of the electronic component mounting systems according to claim 1 of the present application has a drive source, and is necessary for mounting the electronic component on the circuit board by the operation of the drive source. Based on a plurality of work execution devices that perform work, an information processing device that processes information necessary for operation of each drive source of the plurality of work execution devices, and information processed by the information processing device, An electronic component mounting system including a control device that controls the operation of each drive source of the plurality of work execution devices, wherein the control device performs work by operating the drive source of one of the plurality of work execution devices. time required to run, the work-processing time is at least one time with the time required for processing information by the information processing apparatus, the plurality of work-performing instrumentation For each of the measurement unit for measuring, a storage unit for storing been the work-processing time measured by the measurement unit, based on the total to stored the work-processing time in the storage unit, the work and processing time possess a grace time estimation unit that estimates a a a grace period time to exceed the threshold time set in advance in correspondence with the work-processing time, the electronic component mounting system, the plurality, Mounting work machine constituted by the plurality of work execution devices, a plurality of the control devices provided corresponding to the plurality of mounting work machines, and an overall control device that controls each of the plurality of control devices If, connected to said integrated control unit, a grace time estimated by the delay time estimating unit, Ru and a display device for displaying for each of the plurality of work-performing apparatus of each of the plurality of mounting the work machine Configured.

  Further, in the electronic component mounting system according to claim 2, in the electronic component mounting system according to claim 1, the grace time estimation unit specifies the operation / processing time cumulatively stored in the storage unit. The delay time is configured to be estimated based on the specific function.

  Further, the electronic component mounting system according to claim 3 is configured such that in the electronic component mounting system according to claim 2, the grace time estimation unit approximates the specific function using a least square method. Is done.

  An electronic component mounting system according to a fourth aspect of the present invention is the electronic component mounting system according to any one of the first to third aspects, wherein the plurality of work execution devices are provided on a base, A transport device that transports a board and holds the circuit board at a position where work is performed on the circuit board, a work head device that performs work on the circuit board held by the transport device, and the work head device It is comprised so that it may become two or more of the moving apparatus which moves to the arbitrary positions on a base, and the supply apparatus which supplies an electronic component to an arbitrary position.

Moreover, the electronic component mounting system according to claim 5 is the electronic component mounting system according to any one of claims 1 to 4 , wherein each of the plurality of control devices has the grace time. configured with a centralized storage equipment for storing as well as receive information about been the grace time estimated by the estimation unit.

  The electronic component mounting system according to claim 6 is the electronic component mounting system according to claim 5, wherein the overall storage device stores information necessary for each work of the plurality of mounting work machines. In response to a request from each of the plurality of control devices, information is transmitted to each of the control devices to function as the information processing device.

In the electronic component mounting system according to the first aspect, it is possible to know how much time is left before a device constituting the system becomes defective, and it is possible to perform maintenance at an appropriate timing. Specifically, for example, the grace time, which is the time until the device becomes defective, is only about 5 days, but if it is necessary to manufacture a large number of substrates, the system should be operated for as long as possible. It is possible to make a decision to perform maintenance immediately before the grace period, and there is a grace period of about 20 days, but when it is planned to manufacture a large number of substrates after 5 days, It is possible to make a decision to perform maintenance before the plan. Thus, according to the electronic component mounting system according to claim 1, maintenance according to the manufacturing plan is performed by grasping the time during which the devices constituting the system can be operated in a normal state. Is possible. In the electronic component mounting system according to the first aspect, the grace time is displayed for each of the plurality of work execution devices of each of the plurality of mounting work machines. For this reason, the worker can easily compare the grace times of the plurality of work execution devices constituting the plurality of mounting work machines. Thereby, the operator can easily make a maintenance plan according to the production plan.

  In the electronic component mounting system according to claim 2, for example, the relation between the operation / processing time and the time when the operation / processing time is measured is approximated to a specific function, and the approximated function By calculating the time when the operation / processing time reaches the threshold time using, it is possible to appropriately estimate the grace time. Incidentally, the “time” here means an elapsed time from a specific time point. The “specific point in time” that is the starting point of this elapsed time can be arbitrarily set by an operator or the like, but considering the fact that the system is suitably maintained, the point in time when the previous maintenance was performed It is desirable to do. The “elapsed time from a specific time” is not only the time actually elapsed from a specific time but also the total operating time of the system from a specific time, that is, the total system time from a specific time. It also includes operating hours.

  Further, in the electronic component mounting system according to claim 3, the approximation by the function is specifically limited, and the grace time is suitably estimated by approximating the operation / processing time to a specific function by the least square method. It becomes possible to do.

  Further, in the electronic component mounting system according to the fourth aspect, the work execution device is specifically limited, and it is possible to suitably perform the mounting operation of the electronic component on the circuit board. The “work head device” may be any device that can perform work on the circuit board, and a device that performs various work such as mounting work, processing work, and inspection work can be employed. Specifically, a mounting head that holds and removes electronic components, a coating head that applies a processing agent such as an adhesive to a circuit board, and an inspection head that inspects a circuit board on which electronic components are mounted, etc. Is possible.

  In the electronic component mounting system according to the fifth aspect, the grace time of each of the plurality of mounting work machines is transmitted and stored in one central storage device. As a result, the operator can grasp the conditions of each of the many mounting work machines by looking at the overall control device, and can perform maintenance of these many mounting work machines according to the manufacturing plan. . Specifically, for example, during a busy period, it is possible to perform maintenance of only a mounting work machine having an extremely short margin time among a plurality of mounting work machines. On the other hand, in the off-season, it is possible to prepare a large number of well-equipped mounting work machines for busy periods by performing maintenance even for mounting work machines having a relatively long margin.

  In the electronic component mounting system according to the sixth aspect, the state of the general storage device is monitored. As described above, the general storage device manages the grace time of each of the plurality of mounting work machines, and is a very important device in the system. Furthermore, since the overall storage device also manages information necessary for each of the plurality of mounting work machines, there is a possibility that the entire plurality of mounting work machines may stop if a failure occurs in this apparatus. Therefore, it is very meaningful to monitor the state of the overall control device, and it is possible to make full use of the effect of a system that can perform maintenance at an appropriate timing.

It is a schematic diagram which shows the electronic component mounting system which is an Example of this invention. It is a figure which shows the mounting work machine with which the electronic component mounting system shown in FIG. 1 is provided from the viewpoint from upper direction. It is a block diagram which shows the separate control apparatus with which the electronic component mounting system shown in FIG. 1 is provided, and a comprehensive control apparatus. It is a graph which shows the relationship between the elapsed time used for estimating the grace time in an Example, and an operation | movement and process time. It is a table | surface which shows the grace time of the component apparatus for every mounting work machine. It is a graph which shows the relationship between the elapsed time used for estimating the grace time in a modification, and operation | movement and processing time.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings as modes for carrying out the present invention.

<Configuration of electronic component mounting system>
FIG. 1 shows an electronic component mounting system (hereinafter sometimes abbreviated as “mounting system”) 10 according to an embodiment of the present invention. The mounting system 10 includes a plurality of mounting work machines 12, a plurality of individual control devices 14 provided according to the plurality of mounting operations 12, and a general control device 16 that controls the plurality of individual control devices 14 in an integrated manner. And. Each of the plurality of individual control devices 14 is connected to the mounting work machine 12 corresponding to each of the individual control apparatuses 14 by a communication cable 18 so that the mounting work machine 12 corresponding to each of the individual control apparatuses 14 can be individually controlled. Further, each of the plurality of individual control devices 14 is connected to the overall control device 16 by a communication cable 20 so that information, commands, and the like can be transmitted to and received from the overall control device 16.

  Each mounting work machine 12 performs mounting work of electronic components on the circuit board 22, and as shown in FIG. 2, a transport device 24 that transports the circuit board 22 and electronic components on the circuit board 22. Is provided with a work head 26 for mounting the electronic device, a moving device 28 for moving the work head 26, and a pair of supply devices 30 and 32 for supplying electronic components.

  The transport device 24 has a pair of conveyor belts 34 provided in parallel on the base 33, and the pair of conveyor belts 34 is circulated by an electromagnetic motor 36 (see FIG. 3). The circuit board 22 supported by the pair of conveyor belts 34 is transported. In addition, the transport device 24 includes a substrate holding device 38 (see FIG. 3) configured by an air cylinder, and the circuit board 22 at a predetermined position (a position where the circuit board 22 in FIG. 2 is illustrated). It is set as the structure which hold | maintains fixedly. More specifically, a lifting platform 39 is provided at a predetermined position, and the lifting platform 39 is lifted by an air cylinder of the substrate holding device 38 so that the lifting platform 39 and each of the pair of conveyor belts 34 are located above. The circuit board 22 is sandwiched and fixed between the flanges (not shown) provided on the board. In this embodiment, the transport direction of the circuit board 22 by the transport device 24 (the left-right direction in FIG. 2) is referred to as an X-axis direction, and a direction perpendicular to the direction is referred to as a Y-axis direction.

  The work head 26 is a mounting head for mounting an electronic component on the circuit board 22 held by the transport device 24 and having a suction nozzle 40 for sucking the electronic component on the lower surface. The suction nozzle 40 communicates with the negative pressure air and the positive pressure air passage via a positive / negative pressure supply device 42 (see FIG. 3), sucks and holds the electronic component with a negative pressure, and supplies a slight positive pressure. In this way, the held electronic component is detached. Furthermore, the work head 26 has a nozzle lifting device (see FIG. 3) 44 that lifts and lowers the suction nozzle 40 and a nozzle rotation device (see FIG. 3) 46 that rotates the suction nozzle 40 about its axis. It is possible to change the vertical position of the electronic component to be held and the holding posture of the electronic component.

  The working head 26 can be moved to an arbitrary position on the base 33 by the moving device 28. Specifically, the moving device 28 includes an X-axis direction slide mechanism 50 for moving the work head 26 in the X-axis direction, and a Y-axis direction slide mechanism 52 for moving the work head 26 in the Y-axis direction. ing. The X-axis direction slide mechanism 50 has an X-axis slider 54 provided on the base 33 so as to be movable in the X-axis direction, and an electromagnetic motor (see FIG. 3) 56. The shaft slider 54 can be moved to an arbitrary position in the X-axis direction. The Y-axis direction slide mechanism 52 includes a Y-axis slider 58 provided on the side surface of the X-axis slider 54 so as to be movable in the Y-axis direction, and an electromagnetic motor (see FIG. 3). The motor 60 can move the Y-axis slider 58 to an arbitrary position in the Y-axis direction. The work head 26 is attached to the Y-axis slider 58 so that the work head 26 can be moved to an arbitrary position on the base 33 by the moving device 28. The work head 26 can be attached to and detached from the Y-axis slider 58 with a single touch, and can be changed to a different type of work head, such as a dispenser head.

  The pair of supply devices 30 and 32 are disposed on both sides of the base 33 in the Y-axis direction so as to sandwich the transport device 24. One of the pair of supply devices 30 and 32 is a feeder-type supply device 30, and the other is a tray-type supply device 32. The feeder-type supply device 30 has a plurality of tape feeders 70 that hold the taped electronic components and send out the electronic components one by one, and each of the plurality of tape feeders 70 supplies the work head 26 to the work head 26. The electronic component is supplied to the supply position. On the other hand, the tray-type supply device 32 has a plurality of component trays 72 on which a plurality of electronic components are placed, and any one of the plurality of component trays 72 can be moved to a tray moving mechanism 74 (see FIG. 3). ) To move to the supply position to the work head 26.

  The mounting work machine 12 is provided with a mark camera 80 and a parts camera 82. The mark camera 80 is fixed to the lower surface of the Y-axis slider 58 so as to face downward, and is moved by the moving device 28 so that the surface of the circuit board 22 can be imaged at an arbitrary position. ing. On the other hand, the parts camera 82 is provided on the base 33 in a state of facing upward, and can pick up an image of the electronic component sucked and held by the suction nozzle 40 of the work head 26. The image data obtained by the mark camera 80 and the image data obtained by the parts camera 82 are processed in the image processing device 84 (see FIG. 3), and information on the circuit board 22 and the circuit board 22 by the board holding device 38 are processed. A holding position error, a holding position error of the electronic component by the suction nozzle 40, and the like are acquired.

  Further, as shown in FIG. 3, the individual control device 14 provided corresponding to the mounting work machine 12 includes a controller 86 mainly composed of a computer having a CPU, a ROM, a RAM and the like, and the electromagnetic motors 36, 56. , 60, a substrate holding device 38, a positive / negative pressure supply device 42, a nozzle lifting / lowering device 44, a nozzle rotation device 46, a tape feeder 70, and a plurality of drive circuits 88 corresponding to the tray moving mechanism 74. The controller 86 is connected to driving sources such as the transport device 24 and the moving device 28 via each drive circuit 88, and can control the operations of the transport device 24, the moving device 28, and the like. The controller 86 is connected to the image processing device 84 that processes the image data obtained by the mark camera 80 and the part camera 82, and the overall control device 16. A display device 90 is connected to the overall control device 16, and various information can be displayed.

<Mounting work by mounting machine>
In the mounting work machine 12, with the configuration described above, it is possible to perform mounting work by the work head 26 on the circuit board 22 held by the transfer device 24. More specifically, the circuit board 22 is first transported to the mounting work position by the transport device 24, and the circuit board 22 is fixedly held at that position. Next, the working head 26 is moved onto the circuit board 22 by the moving device 28, and the circuit board 22 is imaged by the mark camera 80. By the imaging, the type of the circuit board 22 and the holding position error of the circuit board 22 by the transfer device 24 are acquired. The electronic component corresponding to the acquired type of the circuit board 22 is supplied by the tape feeder 70 of the tape type supply device 30 or the component tray 72 of the tray type supply device 32, and the electronic component is supplied to the electronic component supply position. The head 26 is moved by the moving device 28. At that position, the suction nozzle 40 of the work head 26 is lowered, and the electronic component is sucked and held by the suction nozzle 40. Subsequently, after raising the suction nozzle 40 in a state where the electronic component is held, the work head 26 is moved onto the parts camera 82 by the moving device 28. Then, the parts camera 82 captures an image of the electronic component held by the work head 26, and an electronic component holding position error is acquired by the imaging. Then, after the working head 26 is moved to the mounting position on the circuit board 22 by the moving device 28 and the mounting nozzle 40 is rotated by the working head 26 based on the holding position error of the circuit board and the electronic component, the working head 26 is lowered. , Electronic components are mounted on the circuit board 22.

  Note that, before the mounting operation described above is started, it is determined whether or not the electronic components housed in the supply devices 30 and 32 are to be mounted on the circuit board 22. Specifically, first, the ID number of the tape feeder 70 of the tape type supply device 30 or the component tray 72 of the tray type supply device 32 is transmitted to the overall control device 16 via the individual control device 14. The work information storage unit 92 of the overall control device 16 stores information on electronic components according to the ID number, and the overall control device 16 individually controls information on the electronic components according to the transmitted ID number. To the controller 86 of the device 14. Then, in the controller 86 of the individual control device 14, the electronic components accommodated in the supply devices 30 and 32 are determined based on the transmitted information on the electronic components and the information on the circuit board obtained by the mark camera 80. It is determined whether or not the circuit board 22 should be attached.

<Maintenance management by central control device>
As described above, the mounting work machine 12 is configured by many devices such as the transport device 24, the moving device 28, and the image processing device 84, and the circuit board 22 is obtained by continuous work, processing, and the like of these many devices. An electronic component is mounted on. For this reason, the operation of the mounting work machine 12 may stop due to a failure of one of the many devices, and it is important to manage the conditions of these many devices. Further, since the mounting system 10 includes a plurality of mounting work machines 12, the number of devices constituting the plurality of mounting work machines 12 is considerably increased. Although it is difficult to manage the conditions of such a large number of component devices, it is necessary to perform maintenance before the condition deteriorates if the conditions are reliably managed and the condition is not good.

  Therefore, in the present mounting system 10, based on the operation time that is the time required for the operation of each of the plurality of devices constituting the mounting work machine 12, or the processing time that is the time required for each processing, We estimate how much time is left before the condition gets worse. Specifically, first, the operating time and processing time of each device are measured for each operation and processing of each device. Specifically, as the operation time of the transport device 24, the time required to transport the circuit board 22 to the mounting work position by the electromagnetic motor 36, that is, the transport command by the controller 86 is transmitted to the drive circuit 88 of the electromagnetic motor 36. The time until the completion report from the drive circuit 88 is returned to the controller 86 is measured. Further, as the operation time of the transfer device 24, the time required to hold the circuit board 22 by the substrate holding device 38, that is, after the transfer command by the controller 86 is transmitted to the drive circuit 88 of the substrate holding device 38, The time until the completion report by the drive circuit 88 is returned to the controller 86 is measured.

  Also, as the operation time of the feeder type supply device 30, the time required to send out the electronic components taped by the tape feeder 70 to the supply position, that is, the supply command by the controller 86 is transmitted to the drive circuit 88 of the tape feeder 70. The time until the completion report from the drive circuit 88 is returned to the controller 86 is measured. As the operation time of the tray type supply device 32, the time required to send the component tray 72 to the supply position by the tray moving mechanism 74, that is, the supply command by the controller 86 is transmitted to the drive circuit 88 of the tray moving mechanism 74. The time until the completion report by the drive circuit 88 is returned to the controller 86 is measured.

  Further, as the operation time of the moving device 28, the time required to move the work head 26 from the electronic component supply position by the tape feeder 70 to the part camera 82 by the electromagnetic motors 56, 60, that is, the movement command by the controller 86. Is transmitted to the drive circuit 88 of the electromagnetic motors 56 and 60, and the time from when the completion report by the drive circuit 88 is returned to the controller 86 is measured. The operating time of the mounting head 26 is the time required for the nozzle lifting device 44 to lower and raise the suction nozzle 40 of the work head 26, that is, the movement command from the controller 86 is transmitted to the drive circuit 88 of the nozzle lifting device 44. The time until the completion report from the drive circuit 88 is returned to the controller 86 is measured.

  Further, the processing time of the image processing device 84 is the time required to process the image data captured by the mark camera 80 and the part camera 82, that is, after the imaging command from the controller 86 is transmitted to the image processing device 84. A time until information such as a holding position error of the circuit board processed by the image processing device 84 is transmitted to the controller 86 is measured. Furthermore, the time required for the overall control device 16 to process information on the electronic component in response to a request from the individual control device 14 is also measured as the processing time. That is, the time from when the ID number of the tape feeder 70 or the like is transmitted from the controller 86 to the overall control device 16 until the information regarding the electronic component is transmitted to the controller 86 by the overall control device 16 is measured. As a functional unit for measuring the operation / processing time, a measuring unit 100 is provided in the controller 86 of the individual control device 14 as shown in FIG.

  The operation / processing time measured as described above is stored for each device in the operation / processing time storage unit 102 provided in the controller 86 of the individual control device 14. -The time when the processing time is measured is also stored. Incidentally, the operation time of the feeder type supply device 30 is stored for each of the plurality of tape feeders 70, and the operation time of the tray type supply device 32 is stored for each of the plurality of component trays 74. The operating time of the moving device 28 is stored for each electronic component supply position by the plurality of tape feeders 70.

Next, based on the operation / processing time cumulatively stored in the operation / processing time storage unit 102 and the measured time of the operation / processing time, how much time is left before the condition of each device deteriorates. Estimate if there is. Specifically, first, the accumulated operation / processing time and the measured time of the operation / processing time are approximated using a specific function by the least square method. Here, the measured time of the operation and processing time, a time elapsed from a particular point in time, in this embodiment, there is a lapse of time T _K from the previous maintenance. That is, the elapsed time _TK is reset to 0 every maintenance.

Since the approximation to a specific function by the least square method is a known technique, a detailed description thereof will be omitted, but simply speaking, values of the operation / processing time t _S and the elapsed time T _K are shown in FIG. When plotted on a simple graph, the plotted value is approximated to a specific function (solid line and dotted line in the figure). In this way, the relationship between the operation-processing time t _S and the elapsed time T _K is approximated by the following equation.
t _S = f (T _K )

In the operation / processing time t _S , a threshold time t _S0 is set for each device such as the transport device 24 and the moving device 28, and when the threshold time t _S0 exceeds the operation / processing time t _S , Since it is highly likely that some sort of abnormality has occurred, it is desirable to perform maintenance. Specifically, for example, when the transport device is in a normal state and the transport time to the mounting work position by the transport device 24 is about 5 seconds, the threshold time of the transport time is set to 10 seconds. For example, in a state where the transport time exceeds 10 seconds, it is desirable that maintenance is performed considering that some abnormality has occurred in the transport device 24. That is, until the operation / processing time t _S reaches the threshold time t _S0 , the apparatus is considered to operate normally, and maintenance may be performed before the processing time t _S exceeds the threshold time t _S0 .

Therefore, operation and processing time t _S is the grace period T _Y is the time to more than the threshold time t _S0, is calculated using the approximation formula. Specifically, the operation / processing time t _S in the above approximate expression is set as the threshold time t _S0 , and the elapsed time T _K is calculated. The calculated elapsed time T _K is the threshold time arrival time T _K0 when the operation / processing time t _S becomes the threshold time t _S0 . Then, if the current elapsed time T _K1 is subtracted from the threshold time arrival time T _K0 , the grace time _TY is calculated (see FIG. 4). As shown in FIG. 3, a grace time estimation unit 104 is provided in the controller 86 of the individual control device 14 as a functional unit for estimating the grace time _TY by the above calculation method.

Estimated delay time T _Y as described above is transmitted from the grace time estimation unit 104 to the integrated control unit 16, it is stored in the delay time storage unit 106 of the integrated control unit 16. Then, on the display device 90 connected to the overall control device 16, as shown in FIG. 5, the grace time of the component device for each mounting work machine 12 is displayed. Incidentally, the unit of the grace time shown in the figure is hour.

  By displaying the grace time in this way, the operator manages the condition of each component device of the mounting system 10 only by looking at the display screen 90, and how much time is left before each device becomes defective. It becomes possible to know and to perform maintenance of each device at an appropriate timing. Specifically, for example, regarding the maintenance of the first mounting work machine, only the moving device among the plurality of component devices has an extremely short margin time. For this reason, if the maintenance of only the mobile device is performed, the maintenance time can be shortened. In addition, when there is a margin in the manufacturing plan, it is possible to refresh the entire first mounting work machine by performing maintenance on the entire first mounting work machine. On the other hand, when there is no allowance in the manufacturing plan and it is desired to operate the first mounting work machine as much as possible, it is possible to select to operate for about 200 hours later.

  As for the maintenance of the entire system, for example, it is planned to manufacture a large number of substrates after 20 days (after 480 hours). Only the third mounting work machine having a long component device is operated, and maintenance of the first, second, and fourth mounting work machines is performed, so that the state of the entire system is improved for a large number of manufacturing plans. be able to. Thus, in this mounting system 10, it is possible to perform maintenance according to the manufacturing plan.

  On the other hand, when a large number of board orders are suddenly entered and as many mounting work machines as possible are to be operated, for example, maintenance is performed only on the moving device of the first mounting work machine, and after the maintenance is completed, for example. It is also possible to perform maintenance of the substrate holding device and the electromagnetic motor of the transport device of the second mounting work machine. In this case, if the maintenance time is to be further shortened, it is possible to perform not only full-scale maintenance but also emergency maintenance such as cleaning of the drive unit and application of grease to the drive unit. As described above, in the present mounting system 10, it is possible to appropriately perform maintenance even when a sudden plan is changed, and a highly practical system is realized.

  Incidentally, in the above embodiment, the mounting system 10 is an example of an electronic component mounting system, and the mounting work machine 12 and the individual control device 14 constituting the mounting system 10 are examples of a mounting work machine and a control device. is there. The transfer device 24, the work head 26, the moving device 28, and the supply devices 30 and 32 constituting the mounting work machine 12 are examples of work execution devices, and are examples of the transfer device, the work head device, the moving device, and the supply device. is there. The electromagnetic motors 36, 56, 60, the substrate holding device 38, the positive / negative pressure supply device 42, the nozzle lifting / lowering device 44, the nozzle rotation device 46, the tape feeder 70, and the tray moving mechanism 74 of these devices are drive sources of the work execution device. It is an example. In addition, the measurement unit 100, the operation / processing time storage unit 102, and the grace time estimation unit 104 of the individual control device 14 are examples of a measurement unit, a storage unit, and a grace time estimation unit, and the image processing device 84 is an information processing device. It is an example. Furthermore, the overall control device 16 is an example of an overall storage device and an example of an information processing device.

In addition, this invention is not limited to the said Example, It is possible to implement in the various aspect which gave various change and improvement based on the knowledge of those skilled in the art. Specifically, for example, in the above embodiment, the grace time is estimated using only the approximate expression for the measured value, but not only the approximate expression but also the deviation of the measured value from the approximate expression is approximated. The grace time may be estimated using an equation. Specifically, first, as shown in FIG. _6A , the relationship between the elapsed time _TK and the operation / processing time t _S is approximated to a specific function (solid line in the figure) by the least square method. . Next, a deviation time | Δt _S | which is an absolute value of a difference between the specific function and the measured operation / processing time t _S is calculated, and the calculated deviation time | Δt _S | and the elapsed time T _K are calculated. 6 is approximated to another function (dotted line in the figure) by the method of least squares as shown in FIG. Then, as shown in FIG. 6C, a specific formula approximated from the measured value (solid line in the figure) is added with a specific formula approximated from the deviation time | Δt _S | (dotted line in the figure). ) May be used to estimate the grace time. In addition to the least square method, various methods can be adopted as long as the method can approximate the measured value to a function. Specific examples include a spline interpolation method, a Lagrange interpolation method, and a Newton interpolation method.

  Moreover, in the mounting system 10 of the said Example, although a grace time is alert | reported to an operator only by display, you may leave it using a buzzer etc. Specifically, for example, it is possible to make a buzzer sound when the grace time is considerably shortened. Moreover, in the mounting system 10 of the said Example, although the grace time is displayed on the display apparatus 90 with a number and a character, you may display using a color. Specifically, for example, in the table shown in FIG. 5, the column of the component device whose grace time is less than 300 hours is displayed in red, and the component device whose grace time is 300 hours or more and less than 700 hours is displayed. The column can be displayed in yellow, and the column of the component device whose grace time is 700 hours or more can be displayed in blue. According to such a configuration, the operator can grasp the condition of each work execution device at a glance.

  10: Electronic component mounting system 12: Mounting work machine 14: Individual control device (control device) 16: Overall control device (overall storage device) (information processing device) 24: Transport device (work execution device) 26: Work head (work) Head device) (work execution device) 28: moving device (work execution device) 30: supply device (work execution device) 32: supply device (work execution device) 36: electromagnetic motor (drive source) 38: substrate holding device (drive) 44): Nozzle lifting device (drive source) 56: Electromagnetic motor (drive source) 60: Electromagnetic motor (drive source) 70: Tape feeder (drive source) 74: Tray moving mechanism (drive source) 84: Image processing device ( Information processing apparatus) 100: Measurement unit 102: Operation / processing time storage unit (storage unit) 104: Grace time estimation unit

Claims (6)

A plurality of work execution devices each having a drive source and performing work necessary for mounting electronic components on a circuit board by operation of the drive source;
An information processing device that processes information necessary for the operation of each drive source of the plurality of work execution devices; and
In an electronic component mounting system comprising: a control device that controls the operation of each drive source of the plurality of work execution devices based on information processed by the information processing device;
The controller is
A work that is at least one of a time required to execute a work by operating a drive source of one of the plurality of work execution apparatuses and a time required to process information by the information processing apparatus A measuring unit that measures processing time for each of the plurality of work execution devices ;
A storage unit for storing the work / processing time measured by the measurement unit;
Based on the work / processing time stored cumulatively in the storage unit, a grace time is a time until the work / processing time exceeds a preset threshold time corresponding to the work / processing time. have a grace and time estimation unit that estimates,
The electronic component mounting system is
A plurality of mounting work machines configured by the plurality of work execution devices;
A plurality of the control devices provided corresponding to the plurality of mounting work machines;
A central control device that controls each of the plurality of control devices;
A display device connected to the overall control device and displaying the grace time estimated by the grace time estimation unit for each of the plurality of work execution devices of each of the plurality of mounting work machines;
Electronic component mounting system equipped with. The grace time estimation unit
The electronic component mounting according to claim 1, wherein the operation / processing time accumulated in the storage unit is approximated to a specific function, and the grace time is estimated based on the specific function. system. The grace time estimation unit
The electronic component mounting system according to claim 2, wherein the electronic component mounting system is configured to approximate the specific function using a least square method. The plurality of work execution devices include:
A transport device provided on the base for transporting the circuit board and holding the circuit board at a position where work is performed on the circuit board;
A work head device for performing work on the circuit board held by the transfer device;
A moving device for moving the working head device to an arbitrary position on the base;
The electronic component mounting system according to any one of claims 1 to 3, wherein the electronic component mounting system is a plurality of supply devices that supply electronic components to an arbitrary position. The electronic component mounting system,
From each of the plurality of control devices, any of claims 1 to 4 with a centralized storage equipment for storing as well as receive information about been the grace time estimated by the delay time estimating unit for each 1 Electronic component mounting system described in 1. The overall storage device is
6. The information necessary for each of the plurality of mounting work machines is stored, and information is transmitted to each of the plurality of control devices in response to a request from each of the plurality of control devices, thereby functioning as the information processing device. The electronic component mounting system described in 1.

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