JP7129605B2 - Production activity support system - Google Patents

Description

The present invention relates to a production activity support system for supporting production activities including maintenance work in a component mounting system.

A component mounting system that mounts electronic components on a board to produce a mounted board is a component mounting line that connects multiple facilities, such as a printing device that prints solder on the board and a component mounting device that mounts components on the board after printing. It consists of In the component mounting industry, there has been a demand for higher component mounting accuracy and higher productivity. To meet these demands, maintenance work is important to keep the component mounting equipment in good condition at all times. . In order to perform this maintenance work systematically and efficiently, there is known a work support system having a function of making a maintenance work plan (see, for example, Patent Document 1). In the prior art disclosed in Patent Document 1, when creating a work plan for maintenance work, depending on the purpose of use of the plan, such as a plan for each component mounting device, a plan for each component mounting device group, a plan for each maintenance staff, etc. I try to make various plans.

Japanese Patent No. 4478108

A component mounting system is composed of a plurality of component mounting lines, the number of facilities to be subjected to maintenance work is enormous, and the types of units used in these facilities are wide-ranging. In order to efficiently perform maintenance work for such a component mounting system, it is necessary to formulate a medium- to long-term maintenance work plan that predicts when maintenance is required for each piece of equipment and unit in chronological order. become essential. However, in the prior art shown in the above-mentioned patent document examples, when the recommended time for performing maintenance work or the recommended time for performing maintenance work is exceeded, the maintenance work is summarized and a maintenance work plan is created. Therefore, the items subject to maintenance are limited to items that require maintenance at the time the maintenance work plan is drawn up, making it difficult to achieve efficient maintenance work with excellent operability from a medium- to long-term perspective. Met.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a production activity support system capable of realizing efficient maintenance work with excellent operability from a medium- to long-term perspective in a component mounting system.

A production activity support system of the present invention is a production activity support system that supports production activities including maintenance work performed on a plurality of maintenance targets in the component mounting system in a component mounting system that includes a plurality of component mounting apparatuses. a production information acquisition unit for acquiring production information including production work performed by the component mounting system; execution history information and the production information indicating a history of the maintenance work performed for each of the plurality of maintenance targets; for each of the plurality of maintenance targets, based on the obtained usage time and the usage limit time indicating the deadline for performing the maintenance work, a priority calculation unit that calculates which of the plurality of priorities preliminarily divided for each usage time corresponds to which priority, and predicts a transition of the priority with the passage of time and date .

Further, a production activity support system of the present invention is a production activity support system that supports production activities including maintenance work executed for a plurality of maintenance targets in the component mounting system in a component mounting system having a plurality of component mounting apparatuses. a production information acquisition unit that acquires production information including production work performed by the component mounting system; execution history information that indicates a history of the maintenance work performed for each of the plurality of maintenance targets; Based on the production information, the number of times of use since the previous maintenance was performed is obtained, and based on the obtained number of times of use and the maintenance use limit number of times indicating the number of times the maintenance work should be performed, the plurality of maintenance objects are determined. a priority calculation unit that calculates, for each of the plurality of priorities that have been divided in advance according to the number of times of use, to which priority it corresponds , and that predicts the transition of the priority with the passage of time and date ; Prepare.

According to the present invention, it is possible to realize efficient maintenance work in a component mounting system from a medium- to long-term perspective.

1 is an explanatory diagram of the configuration of a component mounting system according to an embodiment of the present invention; FIG. 1 is a partial cross-sectional view of a component mounting apparatus included in a component mounting system according to one embodiment of the present invention; FIG. 1 is a block diagram showing the configuration of a production activity support system according to an embodiment of the present invention; FIG. 2 is an explanatory diagram of maintenance targets in the production activity support system according to one embodiment of the present invention; FIG. 2 is an explanatory diagram of maintenance work contents in the production activity support system according to one embodiment of the present invention; Explanatory drawing of priority table information in the production activity support system according to one embodiment of the present invention FIG. 4 is an explanatory diagram of maintenance priority schedule data in the production activity support system according to the embodiment of the present invention; FIG. 4 is an explanatory diagram of maintenance condition data in the production activity support system according to one embodiment of the present invention; FIG. 2 is an explanatory diagram of a maintenance work plan table in the production activity support system according to one embodiment of the present invention; FIG. 2 is a flowchart showing creation of maintenance priority schedule data in the production activity support system according to one embodiment of the present invention; FIG. 2 is a flowchart showing creation of maintenance priority schedule data in the production activity support system according to one embodiment of the present invention; FIG. 2 is a flowchart showing creation of a maintenance work plan in the production activity support system according to one embodiment of the present invention; FIG. 4 is a diagram showing a display screen when creating a maintenance plan in the production activity support system according to one embodiment of the present invention; FIG. 4 is a diagram showing a display screen when creating a maintenance plan in the production activity support system according to one embodiment of the present invention; FIG. 4 is a diagram showing a display screen when creating a maintenance plan in the production activity support system according to one embodiment of the present invention;

An embodiment of the present invention will be described with reference to the drawings. A configuration of a component mounting system 1 to which a maintenance work support system according to the present embodiment is applied will be described with reference to FIG. The component mounting system 1 has a function of mounting electronic components on boards to produce mounted boards. In this embodiment, a plurality of component mounting lines 4 (here, lines L1 to L3) are connected to a management device 3 via a communication network 2. FIG. The work in each component mounting line 4 is managed by the management device 3 . That is, data necessary for the operation of each facility to which the component mounting line 4 belongs is transmitted to the facility by the management device 3 , and the processing result of each facility is transmitted to the management device 3 .

A maintenance work support device 5 is attached to the management device 3 in the present embodiment. The maintenance work support device 5 has a function of supporting maintenance work performed on maintenance targets in the component mounting system 1, and functions as a production activity support system that supports production activities including maintenance work.

Each component mounting line 4 has a configuration in which a board supply device M1, a board transfer device M2, a solder printing device M3, component mounting devices M4 and M5, a reflow device M6, and a board recovery device M7 are connected in series. The substrate 13 (see FIG. 2) supplied by the substrate supply device M1 is carried into the solder printing device M3 via the substrate transfer device M2, where the solder printing operation of screen-printing solder for joining components onto the substrate 13 is performed. will be

The board 13 after solder printing is sequentially delivered to the component mounting apparatuses M4 and M5, where the component mounting work of mounting electronic components on the board 13 after solder printing is performed. After mounting the components, the substrate 13 is carried into the reflow device M6, where it is heated according to a predetermined heating profile, thereby melting and solidifying the solder for joining the components. As a result, the electronic components are solder-bonded to the substrate 13 to complete a mounting substrate in which the electronic components are mounted on the substrate 13, which is recovered by the substrate recovery device M7.

Next, with reference to FIG. 2, the configuration and functions of the component mounting apparatuses M4 and M5 will be described. In FIG. 2 showing a cross section of the main parts of the component mounting apparatuses M4 and M5, a board transfer mechanism 12 is arranged on a base 11 in the board transfer direction (the X direction, which is the direction perpendicular to the plane of the drawing). The board transfer mechanism 12 has a conveyor 12a for transferring the board 13, and positions and holds the board 13 carried in from the solder printer M3 at a mounting work position by the component mounting mechanism 17. FIG.

The component mounting mechanism 17 is arranged on both sides (the front side (1F) and the rear side (1R) in the operation direction) of the board transfer mechanism 12, and the mounting head 19 (nozzle head) is moved by the head moving mechanism 18 in the X and Y directions. It is configured to move horizontally to A nozzle holder 19 a is provided at the lower end of the mounting head 19 , and an electronic component is picked up from the tape feeder 15 by the nozzle 20 attached to the nozzle holder 19 a and transferred and mounted on the substrate 13 .

A component supply unit 14 is arranged on the side of the board transfer mechanism 12 in the Y direction (direction orthogonal to the X direction). In the component supply unit 14, the carriage 21 is set with the tape feeders 15 preliminarily mounted in a plurality of feeder mounting slots (not shown) provided in the feeder base 21a. A carriage 21 holds tape reels 22 each containing a carrier tape 23 holding electronic components in a wound state. The carrier tape 23 pulled out from the tape reel 22 is pitch-fed by the tape feeder 15 to the component pick-up position by the nozzle 20 .

A component recognition camera 16 is arranged between the component supply unit 14 and the substrate 13. A mounting head 19 picks up an electronic component from the tape feeder 15 by means of a nozzle 20, and moves above the component recognition camera 16. , the electronic component sucked and held by the nozzle 20 is imaged by the component recognition camera 16 . Each of the component mounting apparatuses M4 and M5 includes a power supply section 24, and the power supply section 24 supplies power for operation to the drive section and control device in the apparatus.

The component mounting apparatuses M4 and M5 configured as described above, the conveyor 12a of the substrate transport mechanism, the nozzle holder 19a of the mounting head 19 constituting the component mounting mechanism 17, the nozzle 20 attached to the nozzle holder 19a, the power supply unit 24, etc. Each of them is subject to maintenance, in which maintenance work such as inspection and cleaning is performed periodically. In the component mounting system 1 according to the present embodiment, the work support function of the maintenance work support device 5 described above efficiently manages the maintenance work to be performed for these maintenance targets.

Codes (L1, L2, L3) specifying the component mounting line 4, codes (M4, M5) specifying the component mounting apparatuses M4, M5, and codes such as (1F) and (1R) specifying the component mounting mechanism 17. , a code identifying each part such as a code identifying the mounting head 19, which is a nozzle head, is used as an identification code for identifying the above-described maintenance target when the maintenance work support device 5 designates a work support target.

Next, with reference to FIG. 3, the configuration of the control system of the maintenance work support device 5 will be described. In FIG. 3, the maintenance work support device 5 is connected to the management device 3 of the component mounting system 1 via the communication unit 50, and various signals and data are exchanged between each part of the maintenance work support device 5 and the management device 3. It is possible to send and receive. In the configuration shown here, the maintenance work support device 5 is described as a device independent of the management device 3, but the configuration is such that the functions of the maintenance work support device 5 are part of the processing functions of the management device 3. may In addition, the management device 3 can transmit and receive information from a system that integrates the entire production factory, such as ERP (Enterprise Resource Planning).

The maintenance work support device 5 includes a storage unit 30 that stores various information and data, a production information acquisition unit 51, an input unit 52, a setting unit 53, an extraction unit 54, a comparison unit 55, a priority calculation unit 56, a maintenance A work plan creating unit 57 and a display unit 58 are provided. The function of each part constituting the maintenance work support device 5 will be sequentially described together with the contents of various information stored in the storage part 30 .

First, the information/data stored in the storage unit 30 will be described. The storage unit 30 stores maintenance related information 31 and maintenance plan data 42 . The maintenance-related information 31 is information about one or more maintenance tasks to be performed for each maintenance target. The maintenance-related information 31 includes facility location information 32, maintenance target 33, maintenance work content 34, priority table information 35, actual production information 40, and execution history information 41, which will be described below.

The facility position information 32 and the maintenance target 33 will be described with reference to FIG. As shown in FIG. 4, the maintenance target 33 includes a "line number" 33a, a "unit ID" 33b, a "equipment ID" 33c, a "maintenance location" 33d, and a "work type" 33e. The "line number" 33a is a number specifying the component mounting line 4 shown in FIG. be. "Unit ID" 33b is an item that comprehensively designates a range to be subjected to maintenance work. Here, in the configuration shown in FIG. 2, as the comprehensive range when the mounting head 19 is the work target, the comprehensive range in units of mechanism units such as "nozzle head" 1 and "nozzle head" 2, and the "device" M5. , a comprehensive range that is appropriately set as necessary, such as a comprehensive range for each individual device, is used.

The "equipment ID" 33c is an identification code for specifying a maintenance target for each facility, and is appropriately set in relation to the "unit ID" 33b. Here, "nozzle head" 1 and "nozzle head" 2 as "unit ID" 33b indicate that they are arranged on the back side (1R) shown in FIG. This indicates that the entire component mounting apparatus M5 is included and subject to maintenance work. "Line No." 33a, "Unit ID" 33b, and "Equipment ID" 33c constitute equipment location information 32 that specifies equipment to be subjected to maintenance work in the component mounting system 1. FIG.

The "maintenance location" 33d specifically indicates a location on which maintenance work is to be performed. The "work type" 33e indicates the work that is specifically executed for the "maintenance location" 33d. Details of the "maintenance location" 33d are shown in the maintenance work content 34. FIG. It should be noted that the division of the "unit ID" 33b and the "equipment ID" 33c is for convenience, and may be appropriately selected according to the convenience of maintenance work management.

FIG. 5 shows maintenance work content 34 . Here, a "work type" 34b, a "work time" 34c, and a "work content" 34d are defined for each "maintenance location" 34a. The “maintenance location” 34 a corresponds to the “maintenance location” 33 d of the maintenance target 33 . The "work type" 34b indicates the type of maintenance work to be performed for each item shown in the "maintenance location" 34a, such as cleaning, lubrication, inspection, and the like. "Work Time" 34c indicates the standard time required to execute the work item in minutes. The "work content" 34d indicates detailed execution content of the work item. By comparing the maintenance target 33 and the maintenance work content 34, it is possible to grasp the work type of the maintenance work, the detailed work execution content, and the work load in terms of time.

Next, the priority table information 35 will be described with reference to FIG. In FIG. 6 , “maintenance location” 35 a and “work type” 35 b correspond to “maintenance location” 33 d and “work type” 33 e in maintenance target 33 . Here, "nozzle holders" 38a to 38c, "nozzles" 38d to 38f, "nozzle changer" 38g, "conveyors" 38h and 38i, and "power source" 38j are exemplified for the device main body 38. For 39, a "tape transport path" 39a is illustrated.

A recommended maintenance deadline 36 is defined for each maintenance target item defined by the "maintenance location" 35a and the "work type" 35b. The recommended maintenance deadline 36 indicates the deadline for performing maintenance work on the maintenance target item. Specifically, the period from the start of use of the item subject to maintenance to the date and time when maintenance work should be performed (hereinafter referred to as the usage limit time) or the period from the start of use of the item subject to maintenance to the number of times maintenance work should be performed (hereinafter referred to as the limit number of times of use) defines the time limit. For example, with respect to the item shown in "nozzle holder" 38a, maintenance work for the item must be performed within 140 hours from the time when maintenance work was performed last time, that is, before 140 hours have elapsed in terms of usage time in the actual operating state. should be executed. In addition, the usage time (or number of times of use) of the maintenance object referred to here is the usage time (or number of times of use) after the start of use from an unused state and the time when the maintenance work was performed last time and the use was started. Contains the usage time (or number of usages) from.

In the maintenance priority 37, the priority in which maintenance work should be performed is defined based on the recommended maintenance deadline 36. FIG. The priority classification is obtained by dividing the range up to each recommended maintenance deadline 36 into preset arbitrary ranges. Here, an example in which the priority is divided into three stages of A, B, and C is shown. For example, regarding the item indicated by "nozzle holder" 38a, the maintenance priority 37 is defined as AB and C in descending order of priority for performing maintenance work. Further, the "maintenance priority A" 37a is divided into those corresponding to the usage time of 140H to 100H. The "maintenance priority B" 37b is divided into those corresponding to usage hours of 100H to 40H. The "maintenance priority C" 37c is divided into items whose usage time is 40 hours or less. As shown in FIG. 6, maintenance priority 37 is similarly determined for other items based on the relationship between the recommended maintenance expiration date 36 and the usage time or number of times of use of the maintenance target.

That is, the priority table information 35 defines a maintenance priority 37 that classifies the order of priority for performing maintenance work, based on the relationship between the recommended maintenance deadline 36 and the usage time or number of times the maintenance target has been used. As the recommended maintenance deadline 36 used here, either the usage time indicating the elapsed operating time or the number of times of use indicating the number of operations in a work operation such as a component mounting operation is appropriately selected and adopted.

The production performance information 40 indicates the production performance of the component mounting work executed by the component mounting system 1. In the present embodiment, each item shown in the maintenance object 33 is used based on the production performance information 40. The time/number of times of use 40a can be obtained. In this embodiment, the maintenance work support device 5 includes a production information acquisition unit 51, and the production information acquisition unit 51 acquires production information from the management device 3 of the component mounting system 1 via the communication unit 50. .

These pieces of production information include production result information 40 executed by the component mounting system 1 as well as information on production planning indicating production work scheduled to be executed by the component mounting system 1 . The execution history information 41 is information indicating the history of maintenance work executed for each maintenance target. The execution history information 41 is acquired by the production information acquisition unit 51 from the management device 3 of the component mounting system 1, similarly to the production performance information 40, and is used to calculate the maintenance priority 37 described below.

Based on the execution history information 41 and the priority table information 35 included in the maintenance-related information 31 described above, the priority calculation unit 56 calculates the date and time of each maintenance work indicated by the maintenance target 33 during the operation process of the component mounting system 1 . Processing is performed to calculate the maintenance priority 37 that changes with the passage of time. In calculating the maintenance priority 37, the usage time or the number of times of use since the previous maintenance was performed is obtained based on the execution history information 41, and the determined usage time or the number of times of use is referred to the priority table information 35. , to which of "maintenance priority A" 37a, "maintenance priority B" 37b, and "maintenance priority C" 37c the maintenance priority 37 at that time corresponds.

In calculating the maintenance priority 37, the scheduled usage time or the scheduled number of times of use of each maintenance target is predicted from the production plan acquired by the production information acquisition unit 51, and the scheduled usage time or the scheduled number of times of use of the maintenance target is prioritized. Based on the maintenance priority table information 35, the maintenance priority 37 for the date and time prior to the information acquisition date may be calculated.

Based on the maintenance priority 37 calculated by the priority calculation unit 56, the maintenance work plan creation unit 57 performs a process of creating a work plan for maintenance work to be performed on at least one of the maintenance targets. The created maintenance work plan is displayed by the display unit 58, and the operator who performs the maintenance work performs the work according to the displayed work plan. When creating a maintenance work plan, the date and time of maintenance execution are input via the input unit 52 and set by the setting unit 53 . The maintenance work plan creation unit 57 creates a maintenance work plan so that the maintenance work is performed by the set maintenance implementation date and time. The fact that the maintenance work indicated in the created work plan will be carried out is displayed on the display unit 58 together with the production plan.

The maintenance plan data created by the maintenance work plan creating unit 57 will now be described. The storage unit 30 stores maintenance plan data 42 , and the maintenance plan data 42 includes maintenance condition data 43 , maintenance priority schedule data 44 , and a maintenance work plan table 45 . As shown in FIG. 7, the maintenance priority schedule data 44 includes "with the passage of the maintenance priority date and time" for each individual maintenance work target item 46a to 46g defined by the maintenance target 33 (see FIG. 4). "Transition" 44a, that is, a change in the maintenance priority 37 calculated by the priority calculation unit 56 for the item.

Here, the results of predicting the maintenance priority 37 for each of the dates a1, a2, a3, . are denoted by A, B, and C corresponding to . That is, immediately after maintenance is performed, the maintenance priority 37 is "maintenance priority C" 37c. priority level B" 37b and then to "maintenance priority level A" 37a. Based on the maintenance priority schedule data 44 created in this way, changes in the maintenance priority 37 for each individual maintenance work item can be grasped, and a medium- and long-term maintenance work plan can be created. Able to rationally determine the order of priority for each case.

Here, the update processing flow of the maintenance priority 37 executed when creating the maintenance priority schedule data 44 will be described with reference to FIGS. 10 and 11. FIG. These processes are executed by the function of the priority calculation unit 56 . First, with reference to FIG. 10, a method of setting the maintenance priority 37 based on the premise that the conventional operating state of the apparatus will be continued without reference to the production plan will be described. First, the number of times of use or the time of use of a maintenance object to be updated in the maintenance priority 37 is obtained (ST1). That is, the usage time/number of times of usage 40 a included in the actual production information 40 stored as the maintenance-related information 31 in the storage unit 30 is read. Next, the priority table information 35 corresponding to the acquired maintenance object is acquired (ST2). That is, similarly, the priority table information 35 stored as the maintenance-related information 31 in the storage unit 30 is read.

Then, based on the acquired number of times of use or usage time and the acquired priority table information 35, the maintenance priority 37 on the information acquisition date is calculated (ST3). The calculated maintenance priority 37 is set as the maintenance priority 37 of the information acquisition date (ST4). Next, from the obtained number of times of use or hours of use and the obtained priority table information 35, the maintenance priority 37 for the date before the information acquisition date is predicted (ST5). Here, the number of times of use or the time of use is estimated and predicted based on the results of the operating state of the equipment up to that time, and based on the result of the prediction, a date prior to the information acquisition date (for example, the maintenance priority schedule data shown in FIG. 7) is estimated. Predict maintenance priority 37 on dates a1-a7) in 44). The predicted maintenance priority 37 is set as the maintenance priority 37 of the date before the information acquisition date (ST6).

Here, the track record of the operating state of the equipment up to that time is, for example, the number of times of use, the time of use, or the average based on the number of times of use and the time of use of each maintenance target equipment for a certain period of time such as one day or one week. values, etc. Also, setting the maintenance priority 37 means updating when the maintenance priority 37 of the maintenance target has been calculated in the past. Also, the calculation of the maintenance priority 37 for the date after the information acquisition date may be for a predetermined period such as one week or one month, or may be calculated for a period that does not exceed the recommended maintenance deadline 36. good. By setting the date and time for the calculated maintenance priority 37 and the predicted maintenance priority 37, the maintenance priority schedule data 44 shown in FIG. 7 is created.

Next, referring to FIG. 11, a method of setting the maintenance priority 37 based on the operating state of the equipment scheduled on the production plan with reference to the production plan acquired by the production information acquisition unit 51 will be described. Here, since ST11 to ST14 are the same as ST1 to ST4 described above, description thereof will be omitted. Next, the production plan in the component mounting system 1 is acquired by the production information acquiring section 51 (ST15). Next, from the acquired production plan, the scheduled number of times of use or the scheduled usage time of the maintenance target is predicted (ST16). In addition, the prediction of the scheduled number of times of use or the scheduled time of use of the maintenance target should be predicted including at least the information on the equipment to be used from the acquired production plan and the number of mounting boards to be produced, and the number of times of use or the estimated number of times of use for the maintenance target may be predicted by simulation or the like. A scheduled usage time may be predicted.

Next, based on the obtained information, the predicted number of times of use or the scheduled time of use, and the obtained priority table information 35, the maintenance priority 37 for the date after the information acquisition date is predicted (ST17). Then, based on the predicted maintenance priority 37, the maintenance priority 37 for the date before the information acquisition date is set (ST18).

By setting the date and time for the calculated maintenance priority 37 and the predicted maintenance priority 37, the maintenance priority schedule data 44 shown in FIG. 7 is created. In this way, by referring to the production plan in calculating the maintenance priority 37, the maintenance priority 37 of the maintenance target can be predicted more accurately, and the accuracy of schedule planning can be improved. there is

Next, referring to FIGS. 8 and 12, processing for creating the maintenance work plan table 45 shown in FIG. will be described with reference to The maintenance condition data 43 shown in FIG. 8 defines acceptable conditions for performing maintenance work in the component mounting system 1 . The maintenance condition data 43 may be set in advance by an administrator who manages the production equipment including the component mounting system, or may be obtained from a system that includes operator information such as ERP and information on the time that the operator can perform maintenance work. It is created by acquiring a worker and the time during which the worker can perform maintenance work via the management device 3 . In the following description, a series of flow of obtaining the worker information and the time when the worker can perform the maintenance work from the management device 3 and creating a maintenance work plan will be described.

That is, in pattern 1 shown in FIG. 8(a), a worker 43a (here, ◯◯, ◯×, and XX) who can work in the component mounting system 1 and these workers are for maintenance work. A "work time" 43b that can be allocated to the work is defined in advance. Here, any of workers XX, XX, and XX can spend 60 minutes for maintenance work. Furthermore, in pattern 2 shown in FIG. 8B, component mounting lines L1 and L2 are defined as work target equipment 43c to which each worker shown in worker 43a can be assigned. Here, workers XX and XX can be assigned to the component mounting line L1, and workers XX can be assigned to the component mounting line L2.

FIG. 12 explains the flow of creating a maintenance work plan based on the maintenance priority arranged in the form of a schedule in the maintenance priority schedule data 44 on the premise of the maintenance condition data 43 described above. First, the maintenance condition data 43 is acquired, and the maintenance execution date and time for executing the maintenance work are set by the setting unit 53 (ST21). That is, the setting unit 53 sets the date and time of scheduled maintenance work.

Next, by the set maintenance execution date and time, the extraction unit 54 extracts maintenance targets whose maintenance priority 37 is equal to or higher than the maintenance priority B from the maintenance priority schedule data 44 (ST22). That is, the extraction unit 54 selects maintenance targets for which the maintenance priority 37 at the set maintenance execution date and time is determined to be higher than a predetermined classification (here, maintenance priority B) for which it is determined that it is desirable to perform maintenance. , from the maintenance priority schedule data 44 .

Next, among the extracted maintenance targets, those with the shortest recommended maintenance time limit 36 are grouped based on predetermined maintenance conditions (ST23). This grouping process is performed by the maintenance work plan creation unit 57 . That is, the maintenance work plan creating unit 57 performs maintenance work on the extracted maintenance targets starting from those with the shortest corresponding recommended maintenance deadlines 36, that is, those with the number of times of use or the time of use close to the limit of use or the limit of the number of uses. I am trying to create a work plan.

As a maintenance condition, work time is taken into consideration first. As shown in FIG. 8, when a single worker performs maintenance work, the total work time required does not exceed 60 minutes. This is a condition for grouping. When there is a maintenance target that exceeds the working hours of the worker, the worker is allowed to decide whether to carry over the corresponding maintenance target to the next maintenance work based on the maintenance priority 37 or to reset the maintenance conditions. Therefore, the display unit 58 is caused to display a message to that effect. This allows the operator to easily determine whether to give priority to production or to add resources (maintenance workers and maintenance time) necessary for maintenance work in order to give priority to maintenance.

Next, it is determined whether or not there is a maintenance target that reaches the recommended maintenance deadline 36 earlier than the set maintenance execution date and time among the extracted maintenance targets. (ST24). That is, the comparison unit 55 compares the set maintenance execution date and time with the date and time when the recommended maintenance deadline for the extracted maintenance target is approaching. Then, it is determined whether or not there is a maintenance target whose recommended maintenance deadline will be reached by the set maintenance execution date and time (ST25).

Here, if there is a maintenance target whose recommended maintenance term is due by the set maintenance implementation date and time, the display unit 58 displays that there is a maintenance target whose maintenance recommended term is due by the maintenance implementation date and time (ST26). After displaying it on the display unit 58, the maintenance execution date and time of the group is set to a date and time before the recommended maintenance deadline (for example, the day before the recommended maintenance deadline) (ST27). That is, the maintenance implementation date and time set in (ST21) is brought forward, and the maintenance implementation date and time are reset so that the maintenance implementation date and time when maintenance work is actually carried out is before the recommended maintenance term. After setting the maintenance execution date and time, the flow of the maintenance work plan ends.

That is, the maintenance work plan creation unit 57 determines that, as a result of the comparison by the comparison unit 55, if there is a maintenance work plan that includes a maintenance target object whose recommended maintenance deadline will be reached by the set maintenance execution date and time, the maintenance work plan creation unit 57 Create a maintenance work plan with implementation dates. Thereby, the maintenance work plan table 45 shown in FIG. 9 is created. In the example shown in FIG. 9, six of the seven target items 46a to 46g listed in the maintenance priority schedule data 44 shown in FIG. (2), 45(3)), and a work plan for maintenance work is drawn up.

In the group 45(1) in which the date a2 shown in the maintenance priority schedule data 44 is the maintenance execution date and time, the maintenance work is executed with the target items 46a and 46f in FIG. At this time, the total (required time) of the "work time" 45a for each item given from the maintenance work content 34 shown in FIG. Time) is divided into groups so as to ensure feasibility at the production site.

In addition, in groups 45(2) and 45(3) in which the date a3 shown in the maintenance priority schedule data 44 is the maintenance execution date and time, the target items 46g, 46b, 46c and 46e in FIG. I'm trying to perform maintenance work as. At this time, similarly, the maintenance work time 45b indicating the total (required time) of the "work time" 45a for each item given from the maintenance work content 34 shown in FIG. Grouping is performed so as not to exceed the given "work time" 43b (permissible time).

In this way, by grouping a plurality of maintenance targets based on maintenance conditions defined in advance, it is possible to reduce the number of times the device operation is stopped for maintenance work as much as possible. As a result, it is possible to minimize the decrease in productivity caused by the stoppage of equipment for maintenance work, which frequently occurred each time the equipment and units constituting the component mounting system 1 individually reached the maintenance time in the conventional technology. be able to. In the above example, the maintenance condition data 43 is acquired from the system that includes the worker information and the time that the worker can perform maintenance work, and the maintenance work plan is created. A maintenance work plan may be created by inputting a part. In other words, the operator determines from the production plan and prepares a maintenance work plan so that the maintenance work can be performed during a period when the component mounting line is not in operation.

Next, a series of flows in which the operator inputs the maintenance condition data 43 and creates a maintenance work plan will be described with reference to FIGS. 13 to 15. FIG. First, FIG. 13A shows a state in which a plan display frame 60 and operation buttons 64 are displayed on the display screen 58a of the display section 58. FIG. The plan display frame 60 indicates the type of work to be executed in a plurality of target component mounting lines and the execution timetable. That is, in the plan display frame 60, a date field 61 indicating the execution date, and a line classification field 62 indicating the division of the component mounting line (here, "L1" 62a, "L2" 62b, "L1" 62a, "L2" 62b, " L3" 62c) is displayed. Furthermore, the date field 61 is divided into time zones by time zone display fields 63, so that work can be displayed and input for each displayed time zone.

As the operation buttons 64, "enter plan" 64a, "import" 64b, "export" 64c, and "register" 64d are provided, and these buttons are operated by operating the pointer (arrow a) displayed on the screen. By operating the button, operation input corresponding to each button can be performed. "Plan input" 64a is a button for inputting a maintenance work plan. "Import" 64b is a button for importing information such as a maintenance work plan created in advance, information such as a work support system other than a component mounting system, or ERP into the maintenance work support device. "Import" 64b makes it possible to acquire information on work support systems other than the production plan and component mounting system, and use this information to create a maintenance work plan.

The "export" 64c is a button for exporting information such as the created maintenance work plan to other maintenance work support devices or a higher system such as ERP. Information such as the maintenance work plan created by the "export" 64c can be acquired by the other maintenance work support device 5 and the management device 3 and used to create a work plan for the entire production floor. "Register" 64d is a button for registering the created maintenance work plan.

Here, as the first operation, an example is shown in which the pointer (arrow a) is aligned with the "input plan" 64a. By this operation, the screen shown in FIG. 13(b) is displayed on the display screen 58a. This screen displays a setting operation column 65 having setting columns for setting a "start time" 65a, an "end time" 65b and a "content" 65c of the work to be executed. On this screen, "L1" 62a indicating the target line L1 in the line classification column 62 and target time zone 63a (here, 19:00 to 20:00) intended for work execution are provided in the setting operation column 65. By operating the selected display operation button 65d with the pointer (arrow b), the screen shown in FIG. 14(a) is displayed on the display screen 58a.

On this screen, 19:00 is input as the "start time" 65a and 20:00 is input as the "end time" 65b corresponding to the operation content, and is displayed, along with an option column indicating the selection content in the "content" 65c. 66 is displayed. Here, "preparation" 66a, "production" 66b, and "maintenance" 66c are set in the option column 66, and by operating the "maintenance" 66c with the pointer (arrow c), FIG. is displayed on the display screen 58a. As a result, "maintenance" 65g is displayed in the "contents" 65c in the "setting operation column" 65. FIG.

When the operator confirms this screen display and operates the "confirmation button" 67 with the pointer (arrow d), the screen display for executing the work plan is confirmed. That is, the maintenance execution date and time and the allowable time of the work time 70 are set. The operator at the entered maintenance execution date and time is set by acquiring from the system including the operator information and the time information when the operator can perform the maintenance work.

As a result, the above-described maintenance work plan creation processing flow (flow from ST22) is executed. After execution of the maintenance work plan creation processing flow, when a maintenance plan is created, a maintenance plan work table 68 shown in FIG. 15 is displayed on the display screen 58a. In the maintenance plan work table 68, a "worker name" 69 who performs work together with the maintenance target 33 shown in FIG. Items” 71 are displayed. A "maintenance work time" 72 obtained by totaling the "work time" 70 is displayed for confirmation. The priority update processing flow may be performed before the maintenance work plan creation processing flow ST22. By performing the priority update processing flow before the maintenance work plan creation processing flow ST22, the latest maintenance priority 37 can be extracted. It is possible to grasp it and create a medium- and long-term maintenance work plan.

Along with this, "maintenance condition change" 73 and "operator confirmation" 74 are set on the display screen 58a. It is possible to confirm the person in charge. Then, by operating "return" 75 and "confirm" 76, an operation to restore the settings or an operation to confirm the settings is performed.

That is, in the maintenance work support system and the production activity support system configured as described above, the work plan (maintenance work plan table 45 shown in FIG. ) together with the production plan of the component mounting system 1 is displayed on the display unit 58 . As a result, the idle time generated in the process of executing various works such as production and preparation in the component mounting system 1 can be effectively used, and the maintenance work essential for maintaining production efficiency can be effectively utilized. Work can be performed efficiently.

As described above, the maintenance work support system according to the present embodiment supports the maintenance work to be performed on the maintenance target in the component mounting system 1, with the recommended maintenance deadline 36 indicating the deadline when the maintenance work should be performed. , priority table information 35 that defines a maintenance priority 37 that classifies the priority order for performing maintenance work based on the relationship between the recommended maintenance deadline 36 and the usage time or number of times the maintenance target is used; and maintenance related information 31 including execution history information 41 indicating the history of maintenance work executed for each of Based on this, the priority calculation unit 56 calculates the maintenance priority 37 that changes with the passage of time for each maintenance work, and based on the maintenance priority 37 calculated by the priority calculation unit 56, A work plan for maintenance work to be performed for at least one item is created by the maintenance work plan creation unit 57 . This makes it possible to implement efficient maintenance work in the component mounting system from a medium- to long-term perspective.

In addition, the production activity support system shown in the present embodiment supports production activities including maintenance work performed on maintenance targets in the component mounting system 1. Production information including the actual production information 40 is acquired by the production information acquisition unit 51, and is information on one or more maintenance work to be performed for each maintenance target, and is recommended maintenance deadline indicating the deadline for performing the maintenance work. 36 and execution history information 41 indicating the history of maintenance work performed on each of the maintenance objects is stored in the storage unit 30, and maintenance is performed on at least one of the maintenance objects. A work plan for maintenance work is created by the maintenance work plan creating unit 57, and the maintenance work shown in the work plan created by the maintenance work plan creating unit 57 is performed on the maintenance execution date and time set by the setting unit 53, according to the production plan. are also displayed on the display unit 58 together. As a result, it is possible to easily create a maintenance work plan and notify the operator, and in the component mounting system, it is possible to realize efficient maintenance work with excellent operability from a medium- to long-term perspective. .

The above has been described based on one embodiment of the present invention. It should be understood by those skilled in the art that this embodiment can be modified in various ways in combination of each component and each treatment process, and such modifications are also within the scope of the present invention.

For example, in the above description, the component mounting system 1 is subject to maintenance, but a maintenance target removed from the component mounting system 1 may also be subject to maintenance. The maintenance target removed from the component mounting system 1 refers to the tape feeder 15, the mounting head 19, or the nozzle 20, for example. By including the maintenance object removed from the component mounting system 1 in the maintenance application object, the removed maintenance object used for the production work scheduled to be executed in the production plan can also be maintained before the usage limit time or the usage limit number of times is reached. Since the work is executed, the maintenance work can be executed efficiently.

INDUSTRIAL APPLICABILITY The production activity support system of the present invention has the effect of being able to realize efficient production activities from a medium- to long-term perspective in a component mounting system, and mounts electronic components on boards to produce mounted boards. useful in the field.
Useful.

1 Component Mounting System 2 Communication Network 4 Component Mounting Line 12a Conveyor 15 Tape Feeder 17 Component Mounting Mechanism 19 Mounting Head (Nozzle Head)
19a Nozzle holder 20 Nozzle M4, M5 Component mounter

Claims (6)

A production activity support system for supporting production activities including maintenance work performed on a plurality of maintenance targets in the component mounting system in a component mounting system including a plurality of component mounting apparatuses,
a production information acquisition unit that acquires production information including production work performed by the component mounting system;
Based on the execution history information indicating the history of the maintenance work performed for each of the plurality of maintenance targets and the production information, the usage time from the previous maintenance execution is obtained, and the obtained usage time and the maintenance are obtained. Based on the usage limit time indicating the time limit for performing the work, it is determined which one of the plurality of priorities classified in advance according to the usage time corresponds to each of the plurality of maintenance targets. a priority calculation unit that calculates and predicts a transition of the priority with passage of time and date . A production activity support system for supporting production activities including maintenance work performed on a plurality of maintenance targets in the component mounting system in a component mounting system including a plurality of component mounting apparatuses,
a production information acquisition unit that acquires production information including production work performed by the component mounting system;
Based on the production information and the execution history information indicating the history of the maintenance work performed for each of the plurality of maintenance targets, the number of times of use since the previous maintenance was performed is obtained, and the obtained number of times of use and the maintenance are obtained. Which priority among a plurality of priorities pre-divided according to the number of times of use corresponds to each of the plurality of maintenance targets, based on a maintenance use limit number of times indicating the number of times work should be performed and a priority calculation unit for predicting a transition of the priority with passage of time and date . 3. The production activity support system according to claim 1, wherein the priority calculation unit calculates which priority corresponds to the designated maintenance target range. 4. The production activity support system according to any one of claims 1 to 3, wherein said maintenance target is a mounting head which picks up an electronic component and transfers and mounts it on a substrate. 5. The production activity support system according to any one of claims 1 to 4, wherein said maintenance target is a tape feeder that feeds a carrier tape holding electronic components to a component pickup position. 6. The production activity support system according to any one of claims 1 to 5, wherein the maintenance target includes a maintenance target removed from the component mounting system.

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