JP2022164951A - Maintenance support device, maintenance support method and maintenance support program - Google Patents

Abstract

To provide a maintenance support device, a maintenance support method and a maintenance support program capable of creating an efficient maintenance plan which avoids resource conflict.SOLUTION: A maintenance support method supports maintenance of a plurality of production facilities. The method includes: acquiring required work information including information on maintenance work required for each production facility, work time information including necessary time of each maintenance work and the information on required resources, and resource information including the information on a usable resource (ST1); grouping the plurality of maintenance works having associated restriction as one work group, among the plurality of maintenance works (ST2); and creating a maintenance plan in which the work group and single work which does not belong to the work group are arranged in time series so that the resources do not overlap with each other (ST5).SELECTED DRAWING: Figure 12

Description

The present invention relates to a maintenance support device, a maintenance support method, and a maintenance support program for supporting maintenance of a plurality of production facilities.

A production line for producing a product such as a mounting board is configured by including a plurality of production facilities such as a component mounting device. These production facilities include movable parts that are driven by motors and the like, and require periodic maintenance performed by stopping the operation of the production line. A production line includes many pieces of production equipment, and the required maintenance items are different for each piece of production equipment, so the maintenance plan is complicated. Furthermore, since the production of products is stopped during maintenance work, it is necessary to create a maintenance plan that enables maintenance work to be carried out efficiently.

According to Patent Document 1, a maintenance plan is created for each production facility, each production facility group, each maintenance staff, etc. in consideration of work attributes such as the technical level and necessity of maintenance work, work hours, etc., and the work contents. and a system for displaying materials (jigs) required for maintenance.

WO2004/086841

By the way, in maintenance of production equipment, a plurality of jigs are used to support maintenance work. A variety of jigs are available, such as jigs that are commonly used in multiple production facilities, and dedicated jigs that are created according to the type of production equipment. In maintenance of a production line, maintenance work is executed in parallel by a plurality of workers using jigs appropriately. However, in the prior art including Patent Document 1, the number of usable resources such as jigs is not taken into consideration when creating a maintenance plan, and maintenance work may stop while waiting for jigs. there were.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a maintenance support device, a maintenance support method, and a maintenance support program capable of creating an efficient maintenance plan that avoids resource competition.

A maintenance support device according to the present invention is a maintenance support device that supports maintenance of a plurality of production facilities, and includes required work information including information on maintenance work required for each of the production facilities, and required work information for each of the maintenance work. an acquisition unit for acquiring working time information including information on time and required resources and resource information including information on available resources; are grouped as one work group, and a plan for creating a maintenance plan in which the work group and independent work that is maintenance work that does not belong to the work group are arranged in chronological order so that the resources do not overlap. and a creation unit.

A maintenance support method of the present invention is a maintenance support method for supporting maintenance of a plurality of production facilities, and includes required work information including information on maintenance work required for each of the production facilities, and maintenance work required for each of the production facilities. an acquisition step of acquiring working time information including information on hours and required resources and resource information including information on available resources; and a plurality of maintenance tasks having associated constraints among the plurality of maintenance tasks. are grouped as one work group, and a plan for creating a maintenance plan in which the work group and independent work that is maintenance work that does not belong to the work group are arranged in chronological order so that the resources do not overlap. and a creating step.

A maintenance support program of the present invention is a maintenance support program that causes a computer to execute support for maintenance of a plurality of production facilities, and includes required work information including information on maintenance work required for each of the production facilities, and An obtaining step of obtaining work time information including information on required resources and required time for maintenance work, and resource information including information on available resources; A work group creation step of grouping a plurality of maintenance works into one work group, and a maintenance plan in which the work group and independent work that is maintenance work that does not belong to the work group are arranged in chronological order so that the resources do not overlap. and a planning step to create a

According to the present invention, it is possible to create an efficient maintenance plan that avoids resource contention.

1 is an explanatory diagram of the configuration of a component mounting system according to an embodiment of the present invention; FIG. FIG. 1 is a plan view of a component mounting device provided in a component mounting line according to one embodiment of the present invention; FIG. 1 is an explanatory diagram of the configuration of a component mounting apparatus provided in a component mounting line according to an embodiment of the present invention; 1 is a block diagram showing the configuration of a processing system of a management computer (maintenance support device) according to an embodiment of the present invention; FIG. (a) Explanatory diagram of an example of required work information (b) Explanatory diagram of an example of work time information (c) Explanatory diagram of an example of resource information used in a management computer (maintenance support device) according to an embodiment of the present invention (a) (b) Explanatory diagrams of an example of intermediate information created by a management computer (maintenance support device) according to an embodiment of the present invention FIG. 4 is an explanatory diagram of an example of a maintenance plan display screen displayed on the display unit of the management computer (maintenance support device) according to one embodiment of the present invention; FIG. 4 is an explanatory diagram of an example of a maintenance plan display screen displayed on the display unit of the management computer (maintenance support device) according to one embodiment of the present invention; FIG. 4 is an explanatory diagram of an example of a maintenance plan display screen displayed on the display unit of the management computer (maintenance support device) according to one embodiment of the present invention; FIG. 4 is an explanatory diagram of an example of a maintenance plan display screen displayed on the display unit of the management computer (maintenance support device) according to one embodiment of the present invention; FIG. 4 is an explanatory diagram of an example of a maintenance plan display screen displayed on the display unit of the management computer (maintenance support device) according to one embodiment of the present invention; 1 is a flowchart of a maintenance support method according to an embodiment of the present invention; FIG. 2 is a flowchart of a first example of a condition changing step in a maintenance support method according to an embodiment of the present invention; FIG. 4 is a flowchart of a second example of a condition changing step in a maintenance support method according to an embodiment of the present invention;

An embodiment of the present invention will be described in detail below with reference to the drawings. The configuration, shape, etc. described below are examples for explanation, and can be changed as appropriate according to the specifications of the component mounting system, management computer, component mounting line, printer, component mounting device, and the like. In the following, the same reference numerals are given to the corresponding elements in all the drawings, and redundant explanations are omitted. In FIG. 2 and a part described later, the two axes perpendicular to each other in the horizontal plane are the X-axis (horizontal direction in FIG. 2) in the substrate transfer direction and the Y-axis (vertical direction in FIG. 2) perpendicular to the substrate transfer direction. shown. In FIG. 3 and a part to be described later, the Z-axis (vertical direction in FIG. 3) is shown as the height direction orthogonal to the horizontal plane.

First, the configuration of a component mounting system 1 will be described with reference to FIG. The component mounting system has a configuration in which one component mounting line L is connected by a communication network 2 and managed by a management computer 3 . The component mounting line L includes a substrate supply device M1, a printing device M2, component mounting devices M3 to M7, a reflow device M8, a substrate recovery device M9, etc., from upstream (left side of the paper surface) to downstream (right side of the paper surface) in the board conveying direction. of production facilities connected in series. The component mounting line L has a function of producing a mounting board in which components are mounted on the board.

Board supply device M1, printer M2, component mounting devices M3 to M7, reflow device M8, and substrate recovery device M9 are connected to management computer 3 via communication network 2. FIG. Note that the component mounting line L is a group of production facilities connected via the communication network 2, and the production facilities do not have to be physically connected to each other.

In FIG. 1, the substrate supply device M1 includes a storage unit such as a rack for storing a plurality of substrates, and performs a substrate supply operation of supplying the substrates taken out from the storage unit to downstream devices. The printing device M2 performs a solder printing operation of printing a paste such as cream solder on a substrate brought in from the upstream side through a screen mask attached to the printing operation section. The component mounting apparatuses M3 to M7 perform a component mounting operation in which a component tape stored in a reel is fed by a tape feeder to a substrate on which paste is printed, and components are picked up by a suction nozzle attached to a mounting head and mounted. to run.

Note that the component mounting line L is not limited to having five component mounting apparatuses M3 to M7, and may have one to four component mounting apparatuses M3 to M7 or six or more. The reflow device M8 heats the board loaded into the device with the board heating unit to harden the paste (cream solder) on the board, and performs a board heating operation of joining the electrode parts of the board and the parts. The substrate recovery device M9 includes a storage unit such as a rack for storing a plurality of substrates, and performs a substrate recovery operation of receiving the substrates carried out by the upstream device and recovering them in the storage unit. Thus, the printing device M2 and the component mounting devices M3 to M7 are production facilities provided in the component mounting line L (production line).

In FIG. 1, the management computer 3 has a function of creating data and parameters necessary for the operation of the production equipment of the component mounting line L and transmitting them to each production equipment. The management computer 3 also has a function of creating a maintenance plan for a plurality of production facilities provided in the component mounting line L and supporting maintenance of the production facilities. The component mounting line L provided in the component mounting system 1 does not need to be one, and may be two or more. Incidentally, the maintenance of the production equipment here means at least either maintenance of the production equipment itself or maintenance of detachable work units (tape feeder 8, mounting head 11, nozzle 11b, etc., which will be described later) provided in the production equipment. including one or the other.

Next, with reference to FIGS. 2 and 3, the configuration of the component mounting apparatuses M3 to M7 will be described. 3 schematically shows part of the component mounting apparatuses M3 to M7 in FIG. The component mounting apparatuses M3 to M7 have a function of performing a component mounting operation of mounting the components supplied from the component supply section onto the board. A substrate transport mechanism 5 is arranged along the X-axis in the center of the base 4 . The substrate transport mechanism 5 carries the substrate 6 transported from upstream to the mounting work position, positions it, and holds it. Further, the board transfer mechanism 5 carries out the board 6 on which the component mounting work is completed downstream.

Component supply units 7 are arranged on both sides of the substrate transport mechanism 5 (in the front-rear direction of the Y-axis). A plurality of tape feeders 8 are mounted in parallel along the X-axis in each component supply section 7 . The tape feeder 8 pitch-feeds a component tape having pockets for storing the components P in a direction (tape feeding direction) toward the substrate transport mechanism 5 from the outside of the component supply unit 7, thereby feeding the mounting head described below. The component P is supplied to the component supply position 8a from which the component P is taken out by .

In FIGS. 2 and 3, a Y-axis table 9 having a linear driving mechanism is arranged along the Y-axis at both ends of the X-axis on the upper surface of the base 4 . A beam 10, also provided with a linear drive mechanism, is coupled to the Y-axis table 9 so as to be movable along the Y-axis. Beam 10 is arranged along the X-axis. A mounting head 11 is attached to the beam 10 so as to be movable along the X axis. The mounting head 11 has a suction unit 11a that sucks and holds the component P by means of a nozzle 11b attached to the lower end thereof, and that can raise and lower the nozzle 11b that holds the component P. As shown in FIG.

In FIG. 2, the Y-axis table 9 and the beam 10 constitute a head moving mechanism for horizontally moving the mounting head 11 along the X-axis and the Y-axis. The head moving mechanism and the mounting head 11 take out the component P from the component supply position 8a of the tape feeder 8 arranged in the component supply unit 7 by sucking it with the nozzle 11b, and mount the substrate 6 positioned on the substrate transport mechanism 5. Perform a mounting turn to equip the position. That is, the Y-axis table 9, the beam 10, and the mounting head 11 constitute component mounting means for mounting the component P on the substrate 6 while holding the component P supplied to the component supply position 8a of the tape feeder 8 with the nozzle 11b.

2 and 3, a component recognition camera 12 is arranged between the component supply unit 7 and the board transfer mechanism 5. As shown in FIG. When the nozzle 11b of the mounting head 11 that has taken out the component P from the component supply unit 7 moves above the component recognition camera 12, the component recognition camera 12 takes an image of the component P held by the nozzle 11b. recognizes the holding posture of

A substrate recognition camera 13 is attached to the plate 10a to which the mounting head 11 is attached. The board recognition camera 13 moves integrally with the mounting head 11 . As the mounting head 11 moves, the board recognition camera 13 moves above the board 6 positioned by the board transfer mechanism 5, picks up an image of the board mark 6a provided on the board 6, and recognizes the position of the board 6. . In the component mounting operation on the board 6 by the mounting head 11, the mounting position is corrected in consideration of the recognition result of the holding posture of the component P by the component recognition camera 12 and the recognition result of the board position by the board recognition camera 13. will be

In FIG. 2, a touch panel 14 operated by an operator is installed at a position where the operator works on the front surface of the component mounting apparatuses M3 to M7. The touch panel 14 displays various information on its display section, and the operator uses operation buttons displayed on the display section to input data and operate the component mounting apparatuses M3 to M7.

In FIG. 3, a carriage 15 having a plurality of tape feeders 8 preliminarily mounted on a feeder base 15a is set in the component supply section 7. As shown in FIG. The carriage 15 holds a reel 17 that houses a component tape 16 holding the component P in a wound state. The component tape 16 pulled out from the reel 17 is pitch-fed by the tape feeder 8 to the component supply position 8a.

Next, the configuration of the information processing system of the management computer 3 will be described with reference to FIG. Here, among the functions of the management computer 3, the configuration related to the function of supporting the maintenance of the production equipment of the component mounting line L (production line) will be described. That is, the management computer 3 (maintenance support device) creates a maintenance plan in which maintenance work necessary for the production equipment of the component mounting line L is arranged in chronological order. Here, a maintenance plan will be described in which the production of mounted boards on the component mounting line L is stopped and a plurality of workers concurrently perform maintenance work on a plurality of production facilities provided on the component mounting line L.

The management computer 3 includes an input section 31 , a display section 32 , and a communication section 33 in addition to a processing section 20 and a storage section 26 that is a storage device. The processing unit 20 is a data processing device such as a CPU, and includes an acquisition unit 21, a work group creation unit 22, a plan creation unit 23, a display processing unit 24, and a verification unit 25 as internal processing units. Note that the management computer 3 does not need to be composed of one computer, and may be composed of a plurality of devices. For example, all or part of the storage unit and processing unit may be provided in the cloud via a server.

In FIG. 4, an input unit 31 is an input device such as a keyboard, touch panel, mouse, etc., and is used for inputting operation commands and data. The display unit 32 is a display device such as a liquid crystal panel, and displays various data stored in the storage unit 26 as well as various information such as an operation screen and an input screen for operation by the input unit 31 . The communication unit 33 is a communication interface, and performs data transmission/reception with the production equipment (the printing device M2, the component mounting devices M3 to M7, etc.) constituting the component mounting line L via the communication network 2 .

The storage unit 26 stores required work information 27, work time information 28, resource information 29, a maintenance plan 30, and the like. The required work information 27 includes information on maintenance work required for each production facility included in the component mounting line L (production line). The work time information 28 includes information specifying the time required for each maintenance work and resources such as jigs and workers required for the maintenance work. The resource information 29 includes information on the quantity of resources that can be used on the component mounting line L. FIG.

Here, examples of the necessary work information 27, work time information 28, and resource information 29 will be described with reference to FIGS. 5(a) to 5(c). 5(a) to 5(c) show information necessary for creating a maintenance plan for the component mounting apparatuses M3 to M7 provided on the component mounting line L. FIG.

In FIG. 5A, the required work information 27 designates maintenance work (work A to work E) required for each of the component mounting apparatuses M3 to M7 (production facilities). In the required work information 27, "M3" of production equipment indicates the component mounting apparatus M3. In addition, "O" indicates the maintenance work required for the production facility. In this example, work A and work B are performed by the component mounting apparatus M3, work A, work B, work D and work E are performed by the component mounting apparatus M4, and work A, work C and work D are performed by the component mounting apparatus M5. Work A and work D are designated for the mounting apparatus M6, and work A, work B, work C, work D and work E are designated for the component mounting apparatus M7.

Maintenance work for the component mounting apparatuses M3 to M7 includes replenishing grease or the like to the movable parts such as the board transfer mechanism 5 and the linear drive mechanism, disassembling and cleaning the suction unit 11a and the nozzle 11b of the mounting head 11, Work to calibrate by measuring the amount of descent of the nozzle 11b with a load meter such as a load cell, work to adjust the optical axis and illumination of the component recognition camera 12 and the board recognition camera 13, inspection and adjustment of the transport belt of the board transport mechanism 5. The work of replacing the board 6, the work of inspecting and adjusting the sensor for detecting the stop position of the substrate 6, and the like can be mentioned.

In FIG. 5B, the work time information 28 designates the time required for maintenance work, the type of jig required, and the priority work for each maintenance work (work A to work E). A priority task is a task that must be completed before that task. For example, maintenance work on the suction unit 11a to which the nozzle 11b is attached must be completed before maintenance work on the nozzle 11b. Therefore, the maintenance work for the suction unit 11a (mounting head 11) takes priority over the maintenance work for the nozzle 11b. In addition, the maintenance work of the board recognition camera 13 that takes an image of the board mark 6a of the board 6 positioned by the board transport mechanism 5 and the component supply position 8a of the tape feeder 8 arranged in the component supply unit 7 is carried out by the board transport mechanism 5 and the component supply position 8a. This is priority work over maintenance work for the tape feeder 8 .

In the example shown in FIG. 5(b), the work A requires a jig α and takes 10 minutes. Also, the work B requires a jig β, and the required time is "20 minutes". In addition, the work C requires a jig γ, and the required time is "60 minutes". Moreover, the work D requires jigs α and β, and the “work C” is the priority work, and the required time is “30 minutes”. That is, work C must be completed before work D starts. Further, the work E does not require a jig, and the required time is "15 minutes".

In FIG. 5(c), the resource information 29 specifies the number of jigs α, β, and γ, and the number of workers (workpieces) that can be used in the component mounting line L. there is In this example, there are five jigs α, two jigs β, one jig γ, and five workers. For example, jigs such as grease guns for replenishing grease to moving parts are used in maintenance work for all devices, and thus are prepared for more than the number of workers. In addition, only a few special jigs used for cleaning and calibrating the mounting head 11 and nozzle 11b, and special jigs used for adjusting the optical axis and lighting of the camera are provided at the component mounting line L and at the factory. used in common. Thus, resources include the types and number of jigs used in maintenance work, and the number of workers (number of workers) who perform maintenance work.

In FIG. 4, the acquisition unit 21 acquires from the storage unit 26 necessary work information 27, work time information 28, and resource information 29 used to create a maintenance plan. When the required work information 27, the work time information 28, and the resource information 29 are stored in a server other than the storage unit 26 of the management computer 3 (maintenance support device), the acquisition unit 21 obtains the necessary information from the server. Get information.

Based on the relationship between maintenance work and jigs and the information on priority work included in the work time information 28, the work group creation unit 22 determines the relationship of using common jigs among a plurality of maintenance work and the order of the maintenance work. A plurality of maintenance tasks with associated constraints such as are grouped into one task group. In the example of the work time information 28 shown in FIG. Since work D has a priority work relationship, it is grouped as one work group. In other words, the associated constraint is a resource (jig α, jig β) common to a plurality of maintenance works, or a priority order of a plurality of maintenance works (work C is executed before work D).

In FIG. 4, based on the required work information 27, the work time information 28, and the resource information 29, the plan creation unit 23 chronologically divides a work group and a single work that is a maintenance work that does not belong to a work group so that resources do not overlap. Create an ordered maintenance plan. When creating a maintenance plan, the plan creation unit 23 considers that the constraint associated with a work group related to jigs whose usable number is greater than or equal to the number of workers has been resolved, and separates the work group as a single work. Arrange in series. In the case of the work time information 28 shown in FIG. 5B and the resource information 29 shown in FIG. The work groups of A and D are canceled, and a maintenance plan is created for each as an independent work.

Here, a procedure for creating a maintenance plan by the plan creation unit 23 will be described with reference to FIG. 6(a). FIG. 6(a) is created by the plan creation unit 23 when creating a maintenance plan based on the required work information 27, work time information 28, and resource information 29 shown in FIGS. 5(a) to 5(c). It is an example of intermediate information that is processed. In the work in charge shown in FIG. 6(a), information specifying production equipment, information specifying maintenance work, and the required time for the work are displayed separated by slashes "/". That is, "M3/A/10 minutes" means that work A of the component mounting machine M3 is a single work and takes 10 minutes, and "M4/B+D/50 minutes" means that work B and work of the component mounting machine M4. D indicates that the total required time for the task group is 50 minutes.

In FIG. 6(a), first, the planning unit 23 assigns component mounting apparatuses M3 to M7 (production equipment) to five workers W1 to W5. In this example, worker W1 is assigned component mounter M3, worker W2 is assigned component mounter M4, worker W3 is assigned component mounter M5, worker W4 is assigned component mounter M6, and worker W5 is assigned component mounter M7. ing. Next, the plan creation unit 23 divides the tasks in charge of the workers W1 to W5 into a task group (enclosed by a rectangle in the figure) and an individual task, and calculates the total required time for the task group. Next, the plan creation unit 23 creates a maintenance plan by arranging the work group and individual work in chronological order so that the resources (jig β and jig γ) do not overlap for each worker W1 to W5. The created maintenance plan 30 is stored in the storage unit 26 .

In FIG. 4 , the display processing unit 24 causes the display unit 32 to display a maintenance plan display screen including the maintenance plan 30 created by the plan creating unit 23 . Here, an example of the maintenance plan display screen displayed on the display unit 32 will be described with reference to FIGS. 7 to 11. FIG. 7 to 11 show a maintenance plan 30 created based on the necessary work information 27, work time information 28, and resource information 29 shown in FIGS. 5(a) to 5(c).

In FIG. 7 , a resource display frame 41 , a maintenance plan display frame 42 , an undo button 43 , a verification button 44 , and a confirm button 45 are displayed on the maintenance plan display screen 40 . The type and number of resources included in the resource information 29 are displayed in the resource display frame 41 .

In the maintenance plan display frame 42, the maintenance plan 30 is displayed in a rectangle that indicates the required time for maintenance work in the horizontal direction. That is, the rectangles representing the work group and the independent work of the intermediate information shown in FIG. 6A are arranged chronologically for each worker W1 to W5 so that the resources (jig β, jig γ) do not overlap. there is In the maintenance plan display frame 42, the maintenance work of the work group is displayed surrounded by a thick line frame. "M3" shown in the work in charge of the worker W1 in the maintenance plan display frame 42 indicates that the work is maintenance work for the component mounting apparatus M3. "B/β1" indicates work B using jig β1 out of two jigs β.

For example, the jig β1 is used by worker W2 for work B and work D for component mounting machine M4, then by worker W3 for work D for component mounting machine M5, and then by worker W1 for component mounting. A maintenance plan 30 has been created for use in operation B of machine M3. In the maintenance plan display frame 42, the arrangement and transfer of the jig β1 are indicated by dotted lines with arrows. In addition, the maintenance plan 30 is created so that the work C, which is the priority work of the work D, is completed before the work D. For example, work C and work D for component mounting apparatus M5 by worker W3 and work C and work D for component mounting apparatus M7 by worker W5 are maintenance planned so that work D starts after work C is completed. 30 have been created. Thus, the display unit 32 displays the maintenance plan 30 created by the plan creation unit 23 .

In FIG. 8 , on the maintenance plan display screen 46 , the administrator who makes up the maintenance plan operates the input unit 31 to move the rectangle representing the work group or individual work in the maintenance plan display frame 42 , thereby displaying the maintenance plan 30 . can be changed. On the maintenance plan display screen 46 shown in FIG. 8, the work A and work B for the component mounting apparatus M3 assigned to the worker W1 in the maintenance plan display frame 42 of the maintenance plan display screen 40 shown in FIG. Worker W2 is allowed to move (change allocation) without changing (arrow a).

After the work group or the single work rectangle is moved, when the administrator operates (presses the button) the verification button 44 using the input unit 31, the verification unit 25 performs , to verify that resources are not duplicated. After that, the display processing unit 24 displays a verification result display frame 47 displaying the verification result by the verification unit 25 so as to be superimposed on the maintenance plan display frame 42 . In this example, the verification unit 25 verifies that the jig β (resource) used by the worker W2 in the work B for the component mounting apparatus M3 is not duplicated. In this example, both of the two jigs β1 and β2 that can be used on the component mounting line L can be used, and there is no duplication of resources. Therefore, the verification result display frame 47 displays "no problem" as the verification result.

On the maintenance plan display screen 48 shown in FIG. 9, the work A and work B for the component mounting apparatus M3 assigned to the worker W1 in the maintenance plan display frame 42 of the maintenance plan display screen 40 shown in FIG. It is moved to worker W4 earlier (arrow b). That is, work A and work B for component mounting apparatus M3 are assigned after work A and work D for component mounting apparatus M6 of worker W4. In this case, when the verification button 44 is operated, the verification section 25 verifies whether or not the jig β1 or the jig β2 can be assigned to the work B for the component mounting apparatus M3.

During the time period in which work B for component mounting apparatus M3 is assigned on the maintenance plan display screen 48, jig β1 is assigned to work D for component mounting apparatus M5 by worker W3, and jig β2 is for component mounting by worker W5. It is assigned to work B for the mounting device M7. That is, the resources (jig β1, jig β2) allocated to work B for component mounting apparatus M3 overlap with other maintenance work. Therefore, the verification result display frame 47 displays "problem, lack of jig β" as the verification result. That is, in the maintenance plan after the change, it warns that work waiting will occur due to competition for jigs β (resources).

In this way, in the maintenance plan display screens 46 and 48, the input unit 31 can, in the maintenance plan 30 displayed on the display unit 32, at least the order of work groups or individual works (work A to work E), or resources ( Receive changes in the assignment of workers W1 to W5).

In FIG. 10 , the administrator can change the number of resources in the resource display frame 41 by operating the input unit 31 on the maintenance plan display screen 49 . In this example, the number of workers is changed to "two". That is, the input unit 31 receives changes in the resource information 29 . When the resource information 29 is changed on the maintenance plan display screen 49 , the plan creating unit 23 recreates the maintenance plan 30 based on the changed resource information 29 .

In this example, the plan creating unit 23 assigns the component mounting apparatuses M3 to M5 to the worker W1, and the component mounting apparatuses M6 and M7 to the worker W2 (see also FIG. 6B). Since the number of jigs α (5) and the number of jigs β (2) are greater than or equal to the number of workers (2), in addition to the work group of work A and work D, work B and work D work group is eliminated. That is, only work C and work D, which have a priority work relationship, form a work group. The plan creating unit 23 creates a maintenance plan so that the work C for the component mounting apparatus M7 by the worker W2 is started after the work C for the component mounting apparatus M5 by the worker W1 so as not to duplicate jigs γ (resources). Create 30. After that, the display processing unit 24 displays the recreated maintenance plan 30 on the display unit 32 (maintenance plan display frame 42).

In FIG. 11, the maintenance plan display frame 42 of the maintenance plan display screen 50 displays a maintenance plan 30 in which rectangles representing work groups and individual works are arranged in chronological order for each of the component mounters M3 to M7. In this case, the plan creating unit 23 creates intermediate information in which two workers W1 and W2 are assigned to the five component mounting apparatuses M3 to M7. In this example, a worker W1 is assigned to the component mounting apparatuses M3 to M5, and a worker W2 is assigned to the component mounting apparatuses M6 and M7. Next, the plan creating unit 23 creates a maintenance plan 30 so that the work C for the component mounting machine M7 is started after the work C for the component mounting machine M5 so that the jig γ (resource) is not duplicated.

In FIG. 7, when the undo button 43 is operated, the maintenance plan changed by the administrator on the maintenance plan display screens 40, 46, 48, 49, 50 is returned to the maintenance plan 30 (original state) before change. be When the confirmation button 45 is operated, the maintenance plan changed by the administrator on the maintenance plan display screens 40 , 46 , 48 , 49 , 50 is stored in the storage unit 26 as the maintenance plan 30 . That is, the change of the maintenance plan 30 is confirmed.

Thus, the administrator can visually change the maintenance plan 30 by operating the maintenance plan display screens 40, 46, 48, 49, and 50. FIG. Also, the administrator can have the management computer 3 (maintenance support device) verify that resources are not duplicated after changing the maintenance plan 30 . The administrator can also modify the resource information 29 to automatically modify the maintenance plan 30 . This allows the administrator to easily create an efficient maintenance plan 30 that avoids resource contention. Furthermore, the manager can easily consider equalization and reduction of the burdens of the workers W1 to W5.

Next, along the flow of FIG. 12, a maintenance support method (maintenance support program) for supporting maintenance of a plurality of production facilities included in the production line (component mounting line L) will be described with reference to the drawings. First, the acquisition unit 21 acquires required work information 27, work time information 28, and resource information 29 (ST1: acquisition step). Next, the work group creating unit 22 groups a plurality of maintenance tasks with associated constraints among the plurality of maintenance tasks into one work group (ST2: work group creating step).

Next, the plan creation unit 23 determines whether or not there is a work group based on the number of resources and the presence or absence of priority work (ST3). If there is no work group (No in ST3), the plan creation unit 23 creates the maintenance plan 30 without considering optimization (ST4: first plan creation step), and if there is a work group (Yes in ST3 ) Create an optimized maintenance plan 30 in which resources do not overlap (ST5: second plan creation step).

That is, in the first plan creation step (ST4), the plan creation unit 23 creates the maintenance plan 30 in which the maintenance work is arranged in order without considering duplication of resources. In the second plan creation process (ST5), the plan creation unit 23 chronologically arranges the work group and the independent work, which is maintenance work that does not belong to the work group, for each production facility so that resources do not overlap. create a maintenance plan 30;

In FIG. 12, the display processing unit 24 then causes the display unit 32 to display the created maintenance plan 30 as the maintenance plan display screen 40 (FIG. 7) (ST6: display step). Next, when the input unit 31 receives changes to various conditions on the maintenance plan display screen, processing corresponding to the changes is executed (ST7: condition change step).

Next, a first embodiment of the condition changing step (ST7) will be described along the flow of FIG. In the first embodiment, in the maintenance plan 30 displayed on the display unit 32, the input unit 31 accepts changes in at least the order of work groups or individual work or the allocation of resources (workers W1 to W5) ( ST11: first input step) (arrow a in FIG. 8, arrow b in FIG. 9). When the verification button 44 is operated on the maintenance plan display screens 46 and 48, the verification unit 25 verifies that resources do not overlap in the maintenance plan 30 after change (ST12: verification step).

If there is no duplication of resources (No in ST13), the display processing unit 24 displays information indicating that there is no problem with the verification result on the maintenance plan display screen 46 (ST14) (verification result display frame 47 in FIG. 8). If there is duplication of resources (Yes in ST13), the display processing unit 24 displays warning information indicating that there is a problem with the verification result on the maintenance plan display screen 48 (ST15) (verification result display frame 47 in FIG. 9). This makes it possible to easily create an efficient maintenance plan 30 that avoids resource conflicts.

Next, a second embodiment of the condition changing step (ST7) will be described along the flow of FIG. In the second embodiment, the input unit 31 accepts changes in the resource information 29 (ST21: second input step) (resource display frame 41 in FIG. 10). Next, the plan creating unit 23 recreates the maintenance plan 30 based on the changed resource information 29 (ST22: plan recreating step). Next, the display processing unit 24 displays the recreated maintenance plan 30 on the display unit 32 (ST23: redisplay step) (maintenance plan display frame 42 in FIG. 10). This makes it possible to easily create an efficient maintenance plan 30 that avoids resource conflicts.

As described above, the management computer 3 (maintenance support device) of the present embodiment includes the necessary work information 27 including information on maintenance work required for each production facility, the time required for each maintenance work, and the necessary maintenance work. an acquisition unit 21 for acquiring work time information 28 including resource information and resource information 29 including available resource information; A work group creation unit 22 that groups the work groups into one work group, and a plan creation unit 23 that creates a maintenance plan 30 in which work groups and independent work, which is maintenance work that does not belong to a work group, are arranged in chronological order so that resources do not overlap. and have. As a result, an efficient maintenance plan 30 that avoids resource competition can be created to support maintenance of a plurality of production facilities.

In the above-described embodiment, a worker is used as an example of a working body that carries jigs in the component mounting line L and performs maintenance work on the component mounting apparatuses M3 to M7. ) is not limited to For example, the working body may be an automated guided vehicle (AGV) that automatically transports jigs, or an articulated robot that automatically performs maintenance work on production equipment.

The use or non-use of the jig may be managed by the management computer 3, and the use or non-use of the jig may be managed according to the plan created by the maintenance plan 30, for example. Furthermore, an identification code is attached to each jig, and the latest information of the component mounting line L can be obtained by recognizing the identification code with a work terminal owned by the worker or inputting the identification code into the input unit 31 before and after the start of use. may be reflected to manage whether or not it is used.

INDUSTRIAL APPLICABILITY The maintenance support device, maintenance support method, and maintenance support program of the present invention have the effect of being able to create an efficient maintenance plan that avoids resource competition, and are useful in the field of mounting components on boards. .

3 Management computer (maintenance support device)
6 board L component mounting line (production line)
M2 printing equipment (production equipment)
M3~M7 Component Mounting Equipment (Production Equipment)
Parts

Claims (16)

A maintenance support device that supports maintenance of a plurality of production facilities,
Necessary work information including information on maintenance work required for each of the production facilities, work time information including information on the time required for each of the above maintenance work and required resources, and resource information including information on available resources and an acquisition unit that acquires
a work group creation unit for grouping a plurality of maintenance tasks having associated constraints among the plurality of maintenance tasks into one work group;
A maintenance support device, comprising: a plan creation unit that creates a maintenance plan in which the work group and independent work that is maintenance work that does not belong to the work group are arranged in chronological order so that the resources do not overlap. 2. The maintenance support device according to claim 1, wherein said associated constraint is a resource common to multiple maintenance tasks. 3. The maintenance support device according to claim 1 or 2, wherein said associated constraints are priorities of a plurality of maintenance tasks. 4. The maintenance support device according to any one of claims 1 to 3, wherein said resources include the types and number of jigs used in said maintenance work and the number of work bodies for performing said maintenance work. a display unit that displays the maintenance plan created by the plan creation unit;
5. The maintenance plan according to any one of claims 1 to 4, further comprising an input unit that receives changes in at least the order of the work group or the independent work, or the allocation of the resources in the maintenance plan displayed on the display unit. maintenance support device. 6. The maintenance support device according to claim 5, further comprising a verification unit that verifies that the resource is not duplicated in the changed maintenance plan received by the input unit. a display unit that displays the maintenance plan created by the plan creation unit;
an input unit that receives changes in the resource information,
The plan creation unit recreates the maintenance plan based on the changed resource information,
5. The maintenance support device according to any one of claims 1 to 4, wherein said display unit displays said recreated maintenance plan. 8. The maintenance support device according to any one of claims 1 to 7, wherein said production equipment includes at least one of a printing device for printing paste on a substrate and a component mounting device for mounting components on a substrate. A maintenance support method for supporting maintenance of a plurality of production facilities, comprising:
Necessary work information including information on maintenance work required for each of the production facilities, work time information including information on the time required for each of the above maintenance work and required resources, and resource information including information on available resources and an obtaining step of obtaining
a work group creation step of grouping a plurality of maintenance works with associated constraints among the plurality of maintenance work into one work group;
A maintenance support method, comprising: creating a maintenance plan in which the work group and independent work, which is maintenance work that does not belong to the work group, are arranged in chronological order so that the resources do not overlap. a display step of displaying the maintenance plan created in the plan creation step on a display unit;
10. The maintenance support method according to claim 9, further comprising an input step of accepting changes in at least the order of said work group or said independent work, or the allocation of said resources in the maintenance plan displayed on said display unit. 11. The maintenance support method according to claim 10, further comprising a verification step of verifying that said resources are not duplicated in the modified maintenance plan received in said input step. an input step of receiving changes to the resource information;
a plan re-creation step of re-creating a maintenance plan based on the changed resource information;
10. The maintenance support method according to claim 9, further comprising a display step of displaying the maintenance plan created in said plan re-creation step on a display unit. A maintenance support program that causes a computer to support maintenance of a plurality of production facilities,
Necessary work information including information on maintenance work required for each of the production facilities, work time information including information on the time required for each of the above maintenance work and required resources, and resource information including information on available resources and a obtaining step that obtains
a work group creation step of grouping a plurality of maintenance works having associated constraints among the plurality of maintenance work into one work group;
and a plan creation step of creating a maintenance plan in which the work group and independent work, which is maintenance work that does not belong to the work group, are arranged in chronological order so that the resources do not overlap. a display step of displaying the maintenance plan created in the plan creation step on a display unit;
14. The maintenance support program according to claim 13, further comprising an input step of accepting changes in at least the order of said work group or said independent work, or the allocation of said resources in the maintenance plan displayed on said display unit. 15. The maintenance assistance program according to claim 14, further comprising a verification step of verifying that the resources are not duplicated in the modified maintenance plan received in the input step. an input step of receiving changes in the resource information;
a plan re-creation step of re-creating a maintenance plan based on the changed resource information;
14. The maintenance support program according to claim 13, further comprising a display step of displaying the maintenance plan created in said plan re-creation step on a display unit.

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