JP2006339388A - Method for managing packaging work, packaging line and packaging machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To simplify the arrangement work in a packaging line equipped with a plurality of packaging machines to which a plurality of component feeders can be attached. <P>SOLUTION: Current arrangement of component feeders attached to its own facility and arrangement of component feeders required for the production program in each packaging machine are transmitted mutually among respective packaging machines. A packaging work assigned to each packaging machine is shifted to other packaging machine attached with a component feeder for that packaging work. Since the packaging work for a substrate of production object can be assigned to each packaging machine depending on the current arrangement of component feeders in each packaging machine, arrangement work such as the attaching work of component feeders by an operator is reduced. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a method for managing a mounting operation for mounting an electronic component on a printed circuit board.

  2. Description of the Related Art As a mounting machine for mounting electronic components on a printed circuit board, there is known a mounting machine that transports and mounts electronic components such as ICs on a printed circuit board with a suction head from a plurality of mounted component supply devices. In addition, a method is known in which a plurality of mounting machines are connected to form a mounting line and a mounting operation for mounting electronic components on a board is shared by the mounting machines.

  Various arrangements of optimization methods for improving the mounting efficiency have been proposed for the arrangement of the component supply devices in such a mounting machine (see Patent Document 1 below).

Then, when switching the type of board to be produced, etc., the operator performs a setup operation for attaching the component supply device to each mounting position of each mounting machine according to the arrangement instruction calculated and set in advance in this way.
Japanese Patent Laid-Open No. 10-209681

  However, in such a setup work, a large number of component supply devices must be accurately attached to the designated mounting position of the designated mounting machine, and there is room for improvement from the viewpoint of improving the workability of the setup work. there were.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a mounting work management method and the like that can simplify the setup work.

  The present invention provides the following means.

[1] A method for managing a mounting operation in a mounting line including a plurality of mounting machines to which a plurality of component supply devices can be attached,
Obtain the current arrangement of the component supply devices attached to each mounting machine,
A mounting work management method, wherein a mounting work of each component on a production target board is assigned to each mounting machine according to a current arrangement of a component supply device in each mounting machine.

  [2] The mounting work management method according to item 1 above, in which when a component supply device currently attached to each mounting machine is insufficient for mounting a production target board, the fact is notified.

  [3] Production can be started when at least one component supply device that supplies each type of component is attached to any of the mounting machines for the component types necessary for the mounting operation of the board to be produced. The management method of the mounting work according to the preceding item 1 or 2.

  [4] The mounting work management method according to any one of the preceding items 1 to 3, wherein the current arrangement of the component supply device is acquired by detecting the component supply device attached to each mounting machine.

  [5] The mounting work management method according to any one of [1] to [4] above, wherein the mounting work is assigned by moving a mounting work assigned to each mounting machine in advance between the mounting machines.

  [6] When a change occurs in the arrangement of the component supply device in any of the mounting machines during the production operation, the mounting work is allocated to each mounting machine in accordance with the changed arrangement of the component supply apparatus. 6. The mounting work management method according to any one of items 1 to 5, which is changeable.

  [7] The mounting work management method according to [6], wherein the change in the arrangement of the component supply devices includes a component cut in any of the component supply devices.

  [8] The mounting work management method according to [6] or [7], wherein the change of the mounting work assignment can be executed even in a state where a board in production exists in each mounting machine.

  [9] When all or part of the mounting work assigned to the upstream mounting machine moves to the downstream mounting machine in a state where there is a board in production in the upstream mounting machine, the upstream mounting machine 9. The mounting work management method according to item 8, wherein the mounting work that has not been executed on the board among the mounting work assigned to the step can be executed in the downstream mounting machine.

[10] A mounting line including a plurality of mounting machines to which a plurality of component supply devices can be attached,
Current arrangement acquisition means for acquiring the current arrangement of the component supply device attached to each mounting machine;
In accordance with the current arrangement of the component supply device in each mounting machine, the assignment determination means for allocating the mounting work of each component on the production target board to each mounting machine,
A mounting line characterized by comprising

[11] A mounting machine to which a plurality of component supply devices can be attached,
A transmission means for transmitting the current arrangement of the attached component supply device to the outside;
With respect to the production target board assigned to the mounting machine according to the current arrangement of the component supply apparatus in the other mounting machines that constitute the mounting line together with the mounting machine and the current arrangement of the component supply apparatus in the mounting machine A mounting machine that performs mounting work.

  According to the above invention [1], since the mounting work is assigned to each mounting machine according to the current arrangement of the component supplying apparatus in each mounting machine, the setup work by the operator who attaches the component supplying apparatus to each mounting machine is reduced. Can do.

  According to the above invention [2], when there is a shortage of component supply devices, this is notified, so that the setup work for attaching the necessary component supply devices to the production target board can be performed reliably.

  According to the above invention [3], since the production can be started if the necessary types of parts are prepared, the production can be performed even during the time until the preferred number of parts supply devices is satisfied.

  According to the invention [4], since the component supply device attached to each mounting machine is detected, it is possible to accurately grasp the current arrangement of the component supply devices in each mounting machine.

  According to the above invention [5], in order to move the mounting work allocated in advance to each mounting machine between the mounting machines, the allocation of each mounting work in the ideal arrangement of the component supply apparatus is determined according to the current arrangement. By changing, it is possible to easily perform mounting work according to the current arrangement.

  According to the invention [6], since the allocation of the mounting work can be changed in accordance with the change in the arrangement of the component supply apparatus that occurs during the production operation, it can flexibly cope with the change in the arrangement of the component supply apparatus that occurs during the production operation. Efficient production.

  According to the above invention [7], it is possible to flexibly cope with a case where any component supply device has run out.

  According to the invention [8], since the assignment of mounting work can be changed even in the state where there is a board in the middle of production, the production can be flexibly dealt with by changing the arrangement of the component supply device that occurs during the production operation. It can be performed.

  According to the above invention [9], when all or part of the mounting work assigned to the upstream mounting machine is moved to the downstream mounting machine in a state where there is a board in production in the upstream mounting machine, Of the mounting work assigned to the upstream mounting machine, the mounting work that has not been performed on the board can be executed in the downstream mounting machine, so the change in the arrangement of the component supply devices that occurs during the production operation This enables more flexible and efficient production.

  According to the above invention [10], since the mounting work is assigned to each mounting machine according to the current arrangement of the component supplying apparatus in each mounting machine, the setup work for attaching the component supplying apparatus to each mounting machine can be easily performed. it can.

  According to the above invention [11], the mounting operation executed by the mounting machine is assigned according to the current arrangement of the component supply devices in the mounting machine and the other mounting machines, so that the mounting line including the mounting machine is configured. It is possible to easily perform the setup work for attaching the component supply device to each mounting machine.

  FIG. 1 is a schematic side view of a mounting line to which a mounting work management method according to an embodiment of the present invention is applied. As shown in the figure, the mounting line 90 includes, from the upstream side to the downstream side of the production line, a substrate carry-in machine 91, a printing machine 92, a plurality of (three) mounting machines 10 ..., an inspection machine 93, and a reflow furnace 94. And equipments such as a substrate unloader 95 are arranged side by side.

  The substrate carry-in machine 91 accommodates a large number of substrates and sequentially carries the substrates into the printing machine 92. The printing machine 92 applies cream solder to the processing area of the substrate that has been carried in by printing. The mounting machines 10 are for mounting electronic components at predetermined positions on a substrate. The inspection machine 93 inspects the mounting state of the electronic component mounted on the board. The reflow furnace 94 reflows the cream solder and solders the substrate and the component. Further, the substrate unloader 95 sequentially accommodates the substrates unloaded from the reflow furnace 94.

  Each equipment such as the mounting machine 10 constituting the mounting line includes a control device 99 configured by a personal computer or the like, and the driving of each facility is controlled by each control device 99. . Further, each control device 99 is connected via a communication means, and is configured so that the operation described in detail later as the entire mounting line is performed by transmitting and receiving signals between the control devices 99. Yes.

  Each of these facilities is provided with a display device 98... Such as a monitor for displaying the operation status.

  FIG. 2 is a plan view showing an example of a mounting machine. As shown in the figure, the mounting machine 10 is disposed on a base 11 and conveys a printed circuit board P, a component supply unit 30 disposed on both sides of the conveyor, and above the base 11. The electronic component mounting head unit 40 is provided.

  The component supply unit 30 is provided on the upstream side and the downstream side of the conveyor 20 on the front side and the rear side, respectively. In this embodiment, a component supply unit 31 capable of mounting a plurality of component supply devices such as tape feeders side by side is provided on the front side and the rear side upstream portion, and a component supply device such as a pallet is stacked on the rear side downstream portion. A tray-type component supply unit 32 that can be attached is provided. The components supplied from these component supply units 30 can be picked up by the head unit 40.

  The head unit 40 is movable in a region extending between the component supply unit 30 and the mounting position on the printed circuit board P so that components can be picked up from the component supply unit 30 and mounted on the printed circuit board P. Specifically, the head unit 40 is supported by a head unit support member 42 extending in the X axis direction (substrate transport direction of the conveyor 20) so as to be movable in the X axis direction. The guide rails 43, 43 extending in the Y-axis direction (a direction orthogonal to the X-axis in the horizontal plane) are supported so as to be movable in the Y-axis direction. The head unit 40 is driven in the X axis direction by the X axis motor 44 via the ball screw 45, and the head unit support member 42 is driven in the Y axis direction by the Y axis motor 46 via the ball screw 47. To be done.

  In addition, a plurality of heads 41 are mounted on the head unit 40 side by side in the X-axis direction. Each head 41 is driven in the vertical direction (Z-axis direction) by an elevating mechanism using a Z-axis motor as a drive source, and is driven in the rotation direction (R-axis direction) by a rotation drive mechanism using an R-axis motor as a drive source. It has come to be.

  At the tip of each head 41, a suction nozzle for picking up electronic components and mounting them on the substrate is provided. Each nozzle is supplied with a negative pressure from a negative pressure means (not shown) at the time of component suction, and can suck the electronic component with a suction force by the negative pressure.

  In FIG. 1, reference numeral 12 denotes a camera, which captures an image of the state of a component sucked by the head unit 40 so that a positional deviation of the component can be detected.

  FIG. 3 is a functional explanatory diagram of a component supply unit of the mounting machine. As shown in the figure, in the component supply unit 31 to which the tape feeder 35 and the like are attached, a plurality of feeder attachment portions 332 are provided on the feeder plate 33, and a feeder 35 such as a tape feeder can be attached to each of them.

  If each feeder 35 is a tape feeder, a reel 353 around which a tape storing small pieces of components such as ICs and transistors is stored at predetermined intervals is mounted, and the tape is intermittently fed out from the reel 353. Thus, the parts stored on the tape can be supplied sequentially. Each feeder 35 or the like constitutes a component supply device.

  Each feeder 35 is provided with a storage medium 351 in which feeder ID information that can identify each feeder 35 is stored. The feeder 35 is attached to each feeder attachment portion 332 by a feeder ID reading portion 331 provided on the feeder plate 33. The feeder ID of the feeder 35 is read.

  Further, a recording medium 352 made of a bar code seal or the like on which feeder ID information is recorded is also attached to the side surface of each feeder 35, and this bar code seal is mounted before the feeder 35 is attached to the feeder plate 33. By reading with a barcode reader 13 or the like connected to the machine 10, the feeder ID or the like can be known.

  The tray-type component supply unit 32 includes a magazine 34 that accommodates the pallet 36, and the pallet 36 can be attached in a stacked manner.

  A component tray 363 containing an electronic component C such as an IC is placed on each pallet 36, and when each pallet 36 is pulled out from the magazine 34, it is appropriately picked up by each head 41 of the head unit 40. Yes. Each pallet 36 constitutes a component supply device.

  Each pallet 36 is provided with a storage medium 361 in which pallet ID information that can be identified is stored. The pallet 36 is attached to each storage stage of the magazine 34 by a pallet ID reading unit 341 provided in the magazine 34. The pallet ID of the pallet 36 is read.

  In addition, a recording medium 362 made of a bar code seal or the like on which pallet ID information is recorded is also attached to the front side of each pallet 36. This bar code seal is mounted before each pallet 36 is accommodated in the magazine 34. By reading with a barcode reader 13 or the like connected to the machine 10, the pallet ID or the like can be known.

  Since the types of parts supplied by each feeder 35 and pallet 36 depend on the tape 353 and tray 363 mounted, when the tape 353 or tray 363 is mounted on the feeder 35 or pallet 36, the feeder ID, pallet ID, and component information Are stored in advance in the component identification information database.

  When the feeder ID or pallet ID is read by the feeder ID reading unit 331, the pallet ID reading unit 341, the bar code reader 13 or the like, the control device (controller) 99 of the mounting machine 10 makes an inquiry to the component identification information database to inquire the feeder. It is possible to obtain part information about parts supplied by 35 and the pallet 36.

  Such a component identification information database may be provided in each mounting machine 10, or may be provided in a higher-level computer or the like capable of transmitting and receiving information via the communication line of the mounting line 90.

  The feeder ID reading unit 331 and the pallet ID reading unit 341 of the mounting machine 10 function as a current arrangement acquisition unit that acquires the current arrangement of the component supply devices such as the feeder 35 and the pallet 36 that are attached.

  In the mounting line 90 provided with a plurality of such mounting machines 10..., After the cream solder is printed by the printing machine 92 on the board carried in from the board carry-in machine 91, the electronic components are placed by the plurality of mounting machines 10. Although mounting is performed, a mounting operation for mounting components on each board to be produced is shared by a plurality of mounting machines 10... So that the board can be efficiently produced.

  From the viewpoint of improving the production efficiency of the entire mounting line 90, it can be determined by a known optimization method to which mounting machine 10 each mounting operation is assigned.

  In this embodiment, when allocation of mounting work to each mounting machine 10 optimized in this way is required, the assigned mounting work is performed on the storage devices provided in the control devices 99 of each mounting machine 10. The production program is stored as the initial production program. In this production program, for each mounting operation, in addition to data on the type of component to be mounted, mounting coordinate position on the board, etc., a component supply device for supplying a component for performing each mounting operation is located anywhere on each mounting machine 10. It also has information on the arrangement of the component supply device that is attached.

  When production is performed based on such an optimized mounting work allocation (original production program), the arrangement of the component supply devices in each mounting machine 10... Is specified, and the component supply device is assigned to each mounting machine 10. In the installation work to be installed, a plurality of component supply devices must be installed so that the specified arrangement is obtained.

  However, since such a setup operation requires accuracy, it places a heavy burden on the operator and may cause a setup error such as a wrong installation position.

  Further, at the time of actual setup work, a component supply device for a board produced immediately before is already attached to each mounting machine 10..., And a specified arrangement is realized while removing this. For example, even if a component supply apparatus already attached to the mounting machine 10 is used on a board that is newly produced, a mounting operation using the component supply apparatus is performed on another mounting machine on the new board. If a different mounting position is designated even if it is assigned to 10 or the same mounting machine, the component supply device must be removed once and moved.

  Therefore, in this embodiment, the work performance of the setup work can be improved by changing the pre-assigned mounting work (original production program) according to the current arrangement of the component supply devices. ing.

  In addition, since this is changed according to the current layout based on the optimized mounting work allocation (original production program), it is easy to set the mounting work allocation according to the current layout. Can do. In addition, since the optimized mounting work assignment remains for the mounting work that may affect the current arrangement, it is possible to set the mounting work assignment capable of realizing efficient production.

  FIG. 4 is an explanatory diagram conceptually showing an example of the movement of the mounting work between the mounting machines. As shown in FIG. 5A, in the mounting machine A of this example, according to the initial production program, it is required to attach a component supply device that supplies a component having the component name CCCCC to the set position F18. At the set position F18, a component supply device for supplying a component having a component name AAAAA is attached. Further, in the mounting machine B, it is required to attach a component supply device that supplies a component named AAAAA to the set position F12. Currently, a component supply device that supplies a component named CCCCC is installed at the set position F12. It is attached.

  In this case, if the setup work is performed in accordance with the initial production program, the component supply device for the component AAAAA attached to the mounting machine A is moved to the set position F12 of the mounting machine B and attached to the mounting machine B. The component supply device for the component CCCCC must be moved to the set position F18 of the mounting machine A.

  In such a case, the mounting work is moved so that the mounting work assigned to each mounting machine is performed by another mounting machine to which the component supply device for the mounting work is attached. In this embodiment, as shown in FIG. 4B, the mounting operation (and its mounting data) of the component CCCCC that was initially assigned to the mounting machine A is moved to the mounting machine B and assigned to the mounting machine B. The mounting work (and its mounting data) of the part AAAAA that has been performed is moved to the mounting machine A.

  In other words, instead of the setup work of moving the component supply device actually attached to each mounting machine by the operator, the mounting work assigned to each mounting machine is moved. As a result, it is possible to produce a substrate to be produced while reducing the setup work by the operator and reducing the burden.

  In this example, the mounting work assigned to each of the mounting machines A and B is moved so as to be exchanged. However, the mounting work may be moved only from one to the other. .

  FIG. 5 is an explanatory diagram conceptually showing transmission / reception of information between each mounting machine. As shown in FIG. 5A, each mounting machine intermittently arranges the arrangement of the component supply devices required by the production program and the actual current arrangement as setup information in the mounting machine (own equipment setup information). Therefore, it is transmitted (broadcast) to all other mounting machines. Each mounting machine receives setup information (other equipment setup information) of other mounting machines transmitted from the other mounting machines. The communication means included in the control device 99 of each mounting machine functions as a transmitting means for transmitting the current arrangement of the component supply devices attached to each mounting machine to the outside.

  Each mounting machine that obtains setup information in another mounting machine in this manner is checked against the setup information of the mounting machine and moved from the mounting work assigned to the mounting machine to any other specific mounting machine. However, preferable mounting operations are extracted as appropriate.

  Each mounting machine, if there is a mounting work that is preferably moved to any other mounting machine, a setup movement request including mounting data for performing this mounting work, as shown in FIG. Send it to another specific mounting machine that you want to move to. The other specific mounting machine that has received the request, if it can accept the request, sends a message to that effect to the mounting machine that is the movement source of the mounting operation, and the moving mounting machine receives the request, It can be confirmed that the mounting work assigned to the mounting machine has been moved.

  As described above, in this embodiment, the control devices 99 of the respective mounting machines cooperate with each other to perform the mounting work of each component on the production target board according to the current arrangement of the component supply devices in each mounting machine. Each control device 99 functions as an assignment determination means.

  FIG. 6 is a flowchart showing the overall flow of board production in this mounting line. As shown in the figure, in the production of a new type of board, first as production preparation (step S1), a production program for the board to be produced is called in each mounting machine (step S2), and the called production is performed. Based on the program, the conveyor width of each mounting machine, the height position of the substrate support plate, and the like are automatically set (step S3).

  Subsequently, as a so-called setup operation, a component supply device for supplying electronic components necessary for a substrate to be produced and an electronic substrate to be mounted are prepared by an operator (step S4), and if ready, operation is started (step S5). ) And production is performed (step S6).

  During such production, electronic parts and electronic substrates are appropriately supplied (step S7), and when the planned production number is produced, the production is terminated (step S8), and the production returns to the next substrate.

  FIG. 7 is a flowchart showing the procedure of the setup work performed prior to the start of production. This setup work is performed in step S4 in FIG. 6. In FIG. 6, a mounting work source that requests other mounting machines to perform a mounting work that is pre-assigned as an initial production program among a plurality of mounting machines. And the processing at the mounting work transfer destination that receives the request are expressed in parallel.

  As shown in the figure, at the time of setup work, each mounting machine is intermittently assigned in advance to the current arrangement (current setup) of the component supply device attached to the mounting machine (own equipment) and the mounting machine. The information on the mounting work (production program) being transmitted is mutually transmitted (step S10).

  In this state, each mounting machine determines whether or not a setup movement for moving the mounting work assigned to the mounting machine (own equipment) to another mounting machine is necessary (step S12). This determination is made, for example, by evaluating whether there is any assigned mounting operation that cannot be executed by the component supply apparatus currently attached to the mounting machine. If the setup movement is not necessary (NO in step S12), the mounting machine can start production, so that it can receive a setup movement request from another mounting machine while permitting production start (step S13). Then, the process returns to the mutual communication such as the current arrangement (step S10).

  If setup movement is necessary (YES in step S12), the mounting work to be moved is extracted (step S14), and it is determined whether there is another mounting machine that can be the destination of the extracted mounting work (step S14). Step S16). This determination is made, for example, by evaluating whether there is another mounting machine to which a component supply device necessary for the mounting operation to be moved is attached.

  If there is no other mounting machine that can be the destination (NO in step S16), the component supply device currently attached to each mounting machine on this mounting line is insufficient for mounting the production target board. Therefore, a setup work instruction screen is displayed to the operator by an output means such as a monitor so as to notify that effect (step S18), and the current arrangement and the like are returned to each other (step S10). For example, when a component supply device for a certain mounting work is not attached to the mounting machine and cannot be moved to because it is not attached to another mounting machine, the component supply for the mounting work is performed. A setup instruction to install the device is issued.

  If there is another mounting machine that can be the moving destination (YES in step S16), the mounting data of the mounting operation that is to be moved to the mounting machine that can be the moving destination is extracted (step S20), and becomes the moving destination as a setup movement request. To the mounter that can be used (step S22). The setup movement request may include a plurality of mounting operations at the same time, and the mounting data of each mounting operation includes a component name and mounting coordinate data on the board.

  When receiving the setup movement request (step S24), the mounting machine that is the destination of the mounting operation determines whether or not the setup movement request can be accepted (step S26). This determination is made, for example, by evaluating whether or not a component supply device as a target has run out. At this time, if the target component supply device receives the setup movement request, it is determined that the component supply device can be accepted even if it is used in duplicate with other mounting operations.

  If the setup movement request cannot be accepted (NO in step S26), a response indicating that the setup movement is rejected is returned to the movement source (step S28), and the movement source receives this rejection result (step S30). A display for notifying that the component supply device attached to the mounting machine is insufficient is displayed (step S18), and the mutual communication such as the current arrangement is returned (step S10).

  If the setup movement request can be accepted at the mounting work destination (YES in step S26), the fact that the setup movement request is accepted is returned to the movement source (step S32), and the received mounting work is transferred to the production program of the destination. (Step S38).

  On the other hand, when the moving source receives the acceptance result (step S34), the moving source performs a process of skipping the moved mounting operation in the moving source production program (step S36). This is because it is preferable that the mounting machine performs the moved mounting operation if the ideal component supply device arrangement is optimized, without deleting from the production program of the mounting machine, This can be done by temporarily skipping.

  Thus, if it is determined that there is no need for setup movement for each mounting machine and the start of production is permitted (step S13), the entire mounting line can be produced.

  According to the setup work to manage the mounting work as described above, the mounting work assigned in advance to each mounting machine is moved according to the current arrangement of the component supply devices attached to each mounting machine, Since the mounting work is newly assigned to the machine, it is possible to make the setup work easy by reducing the work involving the attachment, removal and movement of the component supply device by the operator.

  In addition, if an operator attaches an insufficient component supply device to an arbitrary mounting position of an arbitrary mounting machine, it is reflected in the current arrangement of the mounting machine component supply device, and mounting work is assigned based on the arrangement. Therefore, the installation work of the parts supply device which is insufficient and the setup work such as it become extremely simple.

  In addition, if at least one component supply device that supplies each type of component is attached to any of the mounting machines for the component types required for the mounting operation of the board to be produced, this means that a plurality of mounting operations are performed. It is possible to start production even if it is used redundantly, so that production can be started for the time being even if the number of preferred parts supply devices is not satisfied for efficient production, which is preferable The time until the number of component supply devices is satisfied can be used effectively.

  Next, a description will be given of a response to a case where the arrangement of the component supply device is changed during the production operation.

  FIG. 8 is a flowchart showing a procedure for moving the mounting operation performed when the arrangement of the component supply apparatus is changed during the production operation. This correspondence during production is performed in step S7 of FIG. 6, and in the same manner as the flowchart of FIG. 7, in FIG. 7, the mounting work pre-assigned as the initial production program among a plurality of mounting machines is performed. Processing in a mounting work movement source that requests another mounting machine and a mounting work movement destination that receives the request are expressed in parallel.

  As shown in the figure, even during production, each mounting machine is intermittently assigned in advance to the current arrangement (current setup) of the component supply device attached to the mounting machine (own equipment) and to the mounting machine. The information on the mounting work (production program) being transmitted is mutually transmitted (step S50).

  In this state, each mounting machine determines whether or not a setup movement for moving the mounting work assigned to the mounting machine (own equipment) to another mounting machine is necessary (step S52).

  The determination that the setup movement is necessary includes, for example, the case where the component supply apparatus used for the assigned mounting operation is removed and the case where the component is cut off. In the present invention, when a component breakage occurs, the component supply device does not substantially function. Therefore, the component supply device is treated as a kind of a case where an arrangement change occurs in which the component supply device is removed.

  In addition, when a component supply device is newly attached to the mounter or another mounter, all or part of the mounting work using the same type of component as that component supply device is moved to the new component supply device. However, the necessity of the setup movement is determined based on whether it is advantageous to reduce the load (work amount) of the mounting machine and to shorten the tact time of the entire mounting line. This determination is preferably made according to the load (work amount) of the mounting machine compared to other mounting machines, such as whether the mounting machine is a bottleneck for the tact time of the entire mounting line. .

  If setup movement is not necessary (NO in step S52), it is advantageous to continue production for the mounting machine as it is, so mutual transmission of the current arrangement etc. so that a setup movement request from another mounting machine can be received. Return to (step S50).

  If the setup movement is necessary (YES in step S52), the mounting work to be moved is extracted (step S54), and it is determined whether there is another mounting machine that can be the destination of the extracted mounting work (step S54). Step S56). This determination is made, for example, whether there is another mounting machine on which a component supply device necessary for the mounting operation to be moved is present, whether the load of the other mounting machine is compared with the mounting machine, etc. To evaluate.

  If there is no other mounting machine that can be the destination (NO in step S56), a setup work instruction screen is displayed to the operator by an output means such as a monitor to notify that fact (step S58). It is determined whether the production cannot be continued because there is no part supply device that supplies parts (step S59). If the production cannot be continued (NO in step S59), the production is interrupted (step S92). If it can be continued (YES in step S59), it returns to the mutual transmission of the current arrangement (step S50).

  If there is another mounting machine that can be the movement destination (YES in step S56), the mounting data of the mounting work that is to be moved to the mounting machine that can be the movement destination is extracted (step S60), and becomes the movement destination as a setup movement request. To the mounter that can be used (step S62). The setup movement request may include a plurality of mounting operations at the same time, and the mounting data of each mounting operation includes a component name and mounting coordinate data on the board.

  In addition, when the mounting work movement source is upstream from the movement destination, the setup movement request includes a board (hereinafter referred to as a board) to be produced in a state where the mounting machine performing the mounting work is changed by the setup movement. Such a substrate is referred to as a workpiece after setup movement). Further, when there is a substrate in production in the mounting machine at the movement source and an unexecuted mounting operation is moved with respect to the substrate, the substrate in production (hereinafter, this substrate is referred to as a division processing target workpiece). .) Is also included. Examples of the information specifying these substrates include a serial management number of the substrate and a serial number in the lot. The information for specifying such a board is included because the post-setup moving work and the distributed processing target work produced with the mounting work moved are specified by the upstream apparatus.

  When receiving the setup movement request (step S64), the mounting machine side to which the mounting operation is moved determines whether or not the setup movement request can be accepted (step S66).

  This determination is made, for example, whether the number of remaining parts of the target component supply device is sufficient, whether the component supply device is in the operation of switching to a spare part in the movement destination mounting machine, If it is on the upstream side, it is evaluated by checking whether the production of the next type of substrate has already been started after the planned number of substrates to be set up is reached.

  If the setup movement request cannot be accepted (NO in step S66), a response to reject the setup movement is returned to the movement source (step S68), and the movement source receives this rejection result (step S70). Is displayed (step S58), it is determined whether the production cannot be continued (step S59). If the production cannot be continued (NO in step S59), the production is interrupted (step S92). If it can be continued (YES in step S59), it returns to the mutual transmission of the current arrangement (step S50).

  If it is possible to accept the setup movement request at the mounting work movement destination (YES in step S66), the fact that the setup movement request is accepted is returned to the movement source (step S72). When the mounting work movement destination is upstream from the movement source, information specifying the post-setup movement work or the distributed processing target work is included in the reply to accept the setup movement request. The reason why such information is included is that the post-setup moving work and the distributed processing target work produced in a state where the mounting work is moved are specified by the upstream apparatus.

  When the movement source mounting machine receives this acceptance result (step S74), it is determined whether the board that is the production target in the movement source mounting machine is a workpiece after setup movement or a distributed processing target workpiece (step S74). If neither of them (S76 and S80) (NO in both steps S76 and S80), the production is continued with the production program before the setup movement.

  If the work is after the setup movement (YES in step S76), the moved mounting work is skipped (step S78), and thereafter, the production is performed with the production program after the setup movement that has moved the mounting work.

  If it is a distributed processing target work (YES in step S80), distributed processing is performed on the work (step S82). Distributed processing refers to work that has been sent to the downstream mounting machine in a state where part of the mounting work before the setup change has not been executed on the upstream mounting machine (distributed processing target work). This process complements the implementation work. After the distributed processing target work, since the work is sent after the setup movement, the moved mounting work is skipped (step S78), and thereafter, the production is performed by the production program after the setup movement after moving the mounting work. .

  On the other hand, in the same way, it is determined whether the board that is the production target in the destination mounting machine is the post-setup movement work or the distributed processing target work in the mounting machine that is the mounting work movement destination that has accepted the setup movement. If neither of them (steps S84 and S88) (NO in steps S84 and S88), the production is continued with the production program before the setup movement.

  If the work is after the setup movement (YES in step S84), the received mounting work is added to the production program (step S86), and thereafter, the production is performed with the production program after the setup movement that has moved the mounting work. .

  If the work is a distributed processing target work (YES in step S88), the distributed work is performed on the work (step S90), then the received mounting operation is added to the production program (step S86). Production is performed with the production program after the setup movement that moved the mounting work.

  FIG. 9 is an explanatory diagram of an example of the mounting work movement performed when a part cut occurs during the production operation. As shown in FIG. 5A, during normal production, a component supply device that supplies components A, B, and C is attached to the upstream mounting machine A, and a mounting operation for mounting these components is assigned. ing. Further, a component supply device for supplying components D and E is attached to the downstream mounting machine B, and a mounting operation for mounting these components is assigned.

  Here, when attention is paid to the component A, a plurality of components A are to be mounted on each substrate, and a plurality of mounting operations for mounting the plurality of components A on the substrate are assigned to the mounting machine A. . Therefore, in the board (1) produced during normal production, all components A are mounted by the mounting machine A.

  As shown in FIG. 4B, when the component A in the mounting machine A is out of parts, the mounting machine A becomes unable to perform the mounting operation assigned to itself, and thus another mounting machine that can be the destination of the mounting. Looking for.

  At this time, when a component supply device that supplies the component A to the mounting machine B on the downstream side of the mounting machine A is attached by an operator or the like, the mounting machine A changes to the mounting machine in response to a change in the arrangement of the component supplying apparatus. When B is requested to perform setup movement and the mounting machine B accepts this, all the mounting operations for the component A move from the mounting machine A to the mounting machine B.

  By the way, the production | generation of the board | substrate (2) which was in the middle of production with the mounting machine A at the time of component outage has stopped in the state in which some mounting operations about the component A were not performed. However, in this example, since the mounting operation of the mounting machine A has moved to the downstream mounting machine B, the mounting machine A informs the mounting machine B that the board (2) is a distributed processing target work board (2). The mounting machine B supplements the mounting work that has not been executed by the mounting machine A with the mounting machine B. As shown in FIG. 6C, a part of the component A is mounted on the mounting machine A and the rest is mounted on the mounting machine B on the board (2) which is the work to be distributed.

  When production is resumed by moving the mounting operation for the component A to the mounting machine B in this way, the substrate (3) manufactured after the movement of the mounting operation, as shown in FIG. All are mounted on the mounting machine B.

  FIG. 10 is an explanatory diagram of an example of the mounting work movement performed when the component supply device is added during the production operation. As shown in FIG. 5A, during normal production, a component supply device that supplies components A, B, and C is attached to the upstream mounting machine A, and a mounting operation for mounting these components is assigned. ing. Further, a component supply device for supplying components D and E is attached to the downstream mounting machine B, and a mounting operation for mounting these components is assigned.

  Here, paying attention to the component A, a plurality of components A are to be mounted on each substrate. In the initial component arrangement (arrangement of component supply devices), a plurality of components A are mounted on the substrate. The mounting operation is assigned to the mounting machine A, and all components A are mounted on the mounting machine A on the board (1) that was originally produced.

  As shown in FIG. 5B, it is assumed that a component supply device for supplying the component A is attached to the mounting machine B by an operator or the like. At this time, the mounting machine A that knows that the spare part of the part A is attached to the mounting machine B moves a part of the mounting operation for the part A assigned to the mounting machine A to the mounting machine B. It is assumed that sharing a plurality of mounting operations for the component A is preferable from the load balance between the mounting machine A and the mounting machine B, and is advantageous from the viewpoint of improving the production efficiency of the entire mounting line.

  In this case, a setup movement is requested from the mounting machine A to the mounting machine B, and when the mounting machine B accepts this, a part of the mounting operation for the component A moves from the mounting machine A to the mounting machine B.

  Then, as shown in FIG. 4C, in the board (2) that has been carried into the mounting machine A during the setup movement, all the parts A are mounted on the mounting machine A, but as shown in FIG. As described above, in the substrate (3) which is the workpiece after the setup movement that is carried into the mounting machine A after the setup movement, a part of the component A is mounted on the mounting machine A and the rest is mounted on the mounting machine B.

  As described above, in this embodiment, since the assignment of the mounting work can be changed in accordance with the change in the arrangement of the component supply apparatus that occurs during the production operation, the change in the arrangement of the component supply apparatus that occurs during the production operation can be performed. Efficient production can be performed flexibly.

  Specifically, during a production operation, a component supply device that supplies the same type of component to other mounting machines is attached in a flexible manner in the event that any component supply device runs out of parts. In this case, the production work can be continued by changing the assignment of the mounting work for the component.

  In addition, even when any component supply device is out of production and production is temporarily stopped, the component supply device supplies the same type of component to the mounting machine in which the component has run out or its downstream mounting machine If mounting is performed, the mounting work is moved to the downstream mounting machine, so that the board that has not been executed on the upstream mounting machine that has run out of parts is sent to the downstream mounting machine, and the remaining mounting work is supplemented. can do.

  In addition, when a component supply device that supplies components with a large number of mounted components is additionally installed on any of the mounting machines, the mounting operation for mounting the components can be allocated in a balanced manner to multiple mounting machines. By moving the mounting operation, the occurrence of a mounting machine that becomes a bottleneck in production tact time can be suppressed, and the production efficiency of the entire mounting line can be improved.

  The present invention has been described based on one embodiment. However, the present invention is not limited to the above-described configuration, and may be appropriately changed as follows.

  For example, in the above embodiment, a tape feeder and a pallet are used as an example of the component supply device. Other types of component supply devices may be used.

  In the above embodiment, a head for mounting a component on a substrate as a mounting machine can move in a linear uniaxial direction, can move freely in two directions on a plane, or can move on a circumference. It may be a thing. In addition, although the mounting machine is an example that mounts a component supply device, the component of the supply device is mounted on the board even if it is connected to an external component supply device or just placed in the vicinity. Anything that can be mounted is acceptable. The mounting line according to the present invention can be formed by combining one or more of these various mounting machines.

  In the above embodiment, the optimized mounting work allocation (initial production program) is changed according to the current arrangement of the component supply apparatus, but without assigning the mounting work to each mounting machine in advance, You may make it distribute according to arrangement | positioning of the present component supply apparatus in each mounting machine. In this case, the setting of the assignment of the mounting work can be performed by a higher-level computer or the like that comprehensively manages the mounting line, at any of the facilities (mounting machines), or while communicating between the mounting machines. good.

  In addition, even if the mounting work assigned in advance to each mounting machine is moved according to the current arrangement of the component supply devices of each mounting machine, the mounting data stored in the storage device of each mounting machine is moved. Rather than letting the implementation work assigned to each mounting machine on the higher-level computer that oversees the mounting line, change the assignment as mounting work for other mounting machines, and finally change each mounting as a result of the change. Only the production program based on the mounting work assigned to the machine may be transmitted to each mounting machine and stored in the storage device of each mounting machine.

It is a schematic side view of a mounting line to which a mounting work management method according to an embodiment of the present invention is applied. It is a top view which shows an example of a mounting machine. It is function explanatory drawing of the component supply part of a mounting machine. It is explanatory drawing which showed notionally the example of the movement of the mounting operation | work between each mounting machine. It is explanatory drawing which showed notionally the transmission / reception of the information between each mounting machine. It is a flowchart which shows the flow of the whole board production in this mounting line. It is a flowchart which shows the procedure of the setup operation performed prior to the start of production. It is a flowchart which shows the procedure of the movement of the mounting work performed when a change arises in arrangement | positioning of components supply apparatus during production operation | movement. It is explanatory drawing of the example of the movement of the mounting operation | work performed when components run out during production operation. It is explanatory drawing of the example of the movement of the mounting operation performed when a components supply apparatus is added during production operation.

Explanation of symbols

10 Mounting Machine 35 Feeder (Part Supply Device)
36 Pallet (part supply device)
90 Mounting line P PCB (printed circuit board)

Claims (11)

A method for managing a mounting operation in a mounting line having a plurality of mounting machines to which a plurality of component supply devices can be attached,
Obtain the current arrangement of the component supply devices attached to each mounting machine,
A mounting work management method, wherein a mounting work of each component on a production target board is assigned to each mounting machine according to a current arrangement of a component supply device in each mounting machine.   The mounting work management method according to claim 1, wherein when a component supply device currently attached to each mounting machine is insufficient for a mounting work of a production target board, the fact is notified.   A request to start production when at least one component supply device for supplying each type of component is attached to any of the mounting machines for the component types required for the mounting operation of the board to be produced. Item 3. The method for managing the mounting work according to Item 1 or 2.   The mounting work management method according to claim 1, wherein a current arrangement of the component supply devices is acquired by detecting a component supply device attached to each mounting machine.   The mounting work management method according to any one of claims 1 to 4, wherein the mounting work is assigned by moving a mounting work previously assigned to each mounting machine between the mounting machines.   If there is a change in the placement of the component supply device in any of the mounting machines during production operation, the assignment of mounting work to each mounting machine can be changed according to the changed placement of the component supply device. A method for managing a mounting operation according to any one of claims 1 to 5.   The mounting work management method according to claim 6, wherein the change in the arrangement of the component supply device includes a component cut in any of the component supply devices.   The mounting work management method according to claim 6 or 7, wherein the change of the mounting work assignment can be performed even in a state where a board in production exists in each mounting machine.   When all or part of the mounting work assigned to the upstream mounting machine moves to the downstream mounting machine in a state where there is a board in production on the upstream mounting machine, it is assigned to the upstream mounting machine. The mounting work management method according to claim 8, wherein a mounting work that has not been performed on the board among the mounting work that has been performed can be executed by a downstream mounting machine. A mounting line including a plurality of mounting machines to which a plurality of component supply devices can be attached,
Current arrangement acquisition means for acquiring the current arrangement of the component supply device attached to each mounting machine;
According to the current arrangement of the component supply device in each mounting machine, the assignment determination means for allocating the mounting work of each component on the production target board to each mounting machine,
A mounting line characterized by comprising A mounting machine to which a plurality of component supply devices can be attached,
A transmission means for transmitting the current arrangement of the attached component supply device to the outside;
With respect to the production target board assigned to the mounting machine according to the current arrangement of the component supply apparatus in the other mounting machines that constitute the mounting line together with the mounting machine and the current arrangement of the component supply apparatus in the mounting machine A mounting machine that performs mounting work.

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