WO2020008592A1

WO2020008592A1 - Device and method for optimizing cart constitution of component mounter

Info

Publication number: WO2020008592A1
Application number: PCT/JP2018/025513
Authority: WO
Inventors: 知遥安井; 学牧野
Original assignee: 株式会社日立製作所
Priority date: 2018-07-05
Filing date: 2018-07-05
Publication date: 2020-01-09
Also published as: JP6935593B2; JPWO2020008592A1

Abstract

Provided is a cart constitution optimization device that minimize setup by integrating setup carts of a plurality of groups in a PCBA component mounter. The cart constitution optimization device is constituted by comprising: a target substrate grouping unit that lists varieties of substrates planned to be produced and divides the substrates into groups on the basis of relationship of used components between the substrates; a component arrangement unit that arranges the components in empty carts arrayed so as to correspond to the respective groups on the basis of the shared number of components among sets of the used components in each group and the number of used components in a single group; and a cart constitution optimization unit that compares results indicating arranged components in carts corresponding to each group so as to correspond to a same-component mounter and integrates groups of carts corresponding to a plurality of groups sharing components and having the total number of component varieties within the number of lanes.

Description

Apparatus and method for optimizing cart configuration of component mounting machine

The present invention relates to an apparatus and method for optimizing a cart configuration that reduces production stoppage due to a change in the setup of a component mounting machine that manufactures a plurality of types of boards in a printed circuit board manufacturing line.

At present, surface mount components on printed circuit boards of electronic devices are mainly mounted on SMT (Surface Mount Technology) lines.
A component mounting machine (hereinafter referred to as a mounting machine), which is a core facility of the SMT line, is an apparatus for mounting components on a printed circuit board. In the mounting machine, when changing the type of a board to be manufactured or when reversing the front and back surfaces, a setup operation for replacing components to be used occurs. Particularly, in the case of high-mix low-volume production, an enormous number of setup steps are required.

In order to reduce the setup man-hours in the mounting machine, in Japanese Patent Application Laid-Open No. 2003-163, the parts commonly used among various types of boards are assigned to the mounting machine as completely fixed parts, and the remaining parts are all manufactured in the line. A method has been proposed in which boards are grouped and setup is performed in group units. Specifically, what is called a cart (a cart on which a plurality of types of parts set in a feeder can be installed) (hereinafter referred to as a cart) is prepared for each group, and the parts used in the group are stored. When the group of boards to be manufactured is changed, a set-up operation for changing a cart to a mounting machine is performed.

JP 2017-50362 A

In the method disclosed in Patent Document 1, since the number of groups is proportional to the number of carts, when applied to a high-mix low-volume production line, a large number of carts are required, and as a result, many setups are required.

The present invention has been made in order to solve the above-mentioned problems, and an object of the present invention is to provide a cart configuration optimizing apparatus and a method thereof that reduce setup by integrating carts of a plurality of groups.

A preferred example of the cart configuration optimizing apparatus of the present invention is a cart configuration optimizing apparatus that determines a cart configuration of a component mounting machine installed on a production line, and lists a board type having a production plan, and The target board grouping unit divides each board into groups based on the relationship of the used parts between the boards, and the number of common parts between the set of used parts in each group and the number of used parts in a single group. Comparing the result of parts being placed in the cart corresponding to each group, corresponding to the same component mounting machine, A cart configuration optimizing unit that integrates a cart group corresponding to a plurality of groups whose total number of parts falls within the number of cart lanes is configured.

Further, in a preferred example of the cart configuration optimizing method of the present invention, the computer divides each board into groups based on the relevance of used parts among the boards to be produced, And a process of classifying the used components of each group, and placing the components in empty carts for component mounting machines arranged for each group based on the number of components of each classification. Process and the result of placing parts on carts corresponding to each group corresponding to the same component mounting machine, compare common parts and have the total number of combined parts within the number of cart lanes And a process of integrating cart groups corresponding to a plurality of groups, which are stored in the group.

According to the present invention, it is possible to reduce the setup of a high-mix low-volume production line.

FIG. 2A is a diagram illustrating a configuration of a mounted machine, and FIG. 2B is a diagram illustrating a cart. It is a functional block diagram for realizing a cart configuration optimization device. 9 is a flowchart of a cart configuration optimization process executed by a cart configuration optimization unit. 9 is a flowchart of a target board grouping process executed by a target board grouping unit. It is a figure showing the component use situation for every target board. FIG. 7 is a diagram showing a flow from calculation of a part coincidence rate to grouping of target boards. It is a figure which shows the flow which aggregates the component use situation of a board | substrate in a group unit. It is a figure which shows the similarity investigation between groups. 9 is a flowchart of a component placement process executed by a component placement unit. It is a figure which shows the flow which arrange | positions a part to a cart (the 1). It is a figure showing the flow of arranging parts on a cart (the 2). It is a figure explaining integration of a cart. It is a figure showing the result of having performed cart composition optimization. 12 is a flowchart of a cart configuration optimizing process for changing the arrangement of parts and performing cart integration according to the second embodiment. FIG. 13 is a diagram illustrating a result of arranging parts in a cart according to the second embodiment. FIG. 14 is a diagram illustrating cart integration in the second embodiment. FIG. 14 is a diagram illustrating a display example of a result of a cart configuration optimization process according to a third embodiment. FIG. 14 is a diagram illustrating an example of component placement data downloaded to each mounting machine according to a fourth embodiment. FIG. 18 is a diagram illustrating an example of a setup instruction document notified to a setup worker in a fifth embodiment.

Hereinafter, embodiments will be described with reference to the drawings.

First, the configuration of the mounting machine according to one embodiment and the cart replacement setup will be described with reference to FIGS. 1 (A) and 1 (B).

The main components of the mounting machine 100 according to this embodiment include a cart 110, a feeder 120 for installing parts on the cart, and a mounting head 102.

When supplying the component 121 to the mounting machine 100, the component (reel or the like containing the component) 121 is set in the feeder 120, and furthermore, a lane configured on the cart 110 (in the present embodiment, a configuration example of seven lanes is shown. However, the feeder 120 is actually set to one of the fourteen lanes 114, for example. With the feeder 120 set in each lane on the cart 110, at the time of setup, the cart 110 is replaced with the cart used at the time of the previous production that was connected to the predetermined position of the loading machine 100, connected, and set up. It ends.

Next, when the component 121 is mounted on the printed circuit board by the mounting machine 100, the mounting head 102 grasps the component 121 set in the feeder 120 on the cart 110 and moves to the component arrangement position of the printed circuit board 101. To be mounted there. By repeating this operation for each cart group 111 with a plurality of mounting machines, the printed circuit board 101 can be assembled.
Thus, when assembling a board with a mounting machine, a setup operation for setting components on a cart or a feeder is required, and this is generally performed manually.

Also, in the high-mix low-volume production, for example, since only one cart group 111 cannot cover the components of all the board types, as shown in FIG. There are cases where

cart groups

112 and 113 are prepared in advance for each of the groups A and B. Generally, since the number of carts increases in proportion to the number of types, the setup time tends to greatly increase.

The production time of the SMT line is mainly divided into the setup time and the operation time of the mounting machine.
The setup time is a work time for changing the type of a board to be manufactured or for reversing the front and back surfaces, such as stopping the mounting machine and replacing components to be used.
The operation time is the time during which the mounting machine mounts components. This is because if there is a variation in the number of components to be mounted among a plurality of mounting machines, the other mounting machines are kept waiting while the mounting machine having the largest number of components is operating.
2. Description of the Related Art Conventionally, in order to increase the throughput of an SMT line, efforts have been made to reduce the setup time and level the operation time (mounting time) of a mounting machine. This embodiment proposes a cart configuration optimizing apparatus and a method for a component mounting machine for reducing the number of setup steps. Since it is effective to fine-tune the position of the parts to be placed on the cart in order to equalize the operation time (mounting time), in this embodiment, it is generally realized by a known tool provided by the mounting machine vendor. I do.

Next, a functional block diagram for realizing the cart configuration optimizing device 10 will be described with reference to FIG.

The cart configuration optimizing device 10 can be configured on a general-purpose computer, and its hardware configuration includes an arithmetic unit 20 including a CPU (Central Processing Unit) and a RAM (Random Access Memory), and a ROM (Random Access Memory). A storage unit 30 composed of a read only memory (HDD), a hard disk drive (HDD), a solid state drive (SSD) using a flash memory, etc .; an operation unit 40 composed of input devices such as a keyboard and a mouse; A display unit such as a liquid crystal display (LCD) or an organic EL display, a display unit 50 including various output devices, a communication unit 60 including a NIC (Network Interface Card) and the like are provided.

The communication unit 60 is connected to various databases 1 to 5 on other computers and the like, each mounted machine 100 constituting a production line, a PC 200 for workers, and the like via a wireless or wired network 70.

The calculation unit 20 realizes the following functional units by loading the cart configuration optimization processing program 31 stored in the storage unit 30 into the RAM and executing the program by the CPU. The operation unit 20 groups the production target boards, classifies the components used in each group, and derives an optimal cart configuration according to the number of components for each classification. A target board grouping section 22 for grouping boards at a part matching rate, a component placement section 23 for arranging components in a cart according to the similarity of components between groups, a system user, setup work for cart configuration and component placement results And a cart configuration output unit 25 that outputs component arrangement data to each mounting machine in addition to the output to the user.

In addition, the arithmetic unit 20 executes the leveling processing program 32 to change the arrangement of parts in the cart or across the carts in order to level the operation time of each loading machine using the cart configuration in which the setup is optimized. Is implemented.

The storage unit 30 includes a cart configuration optimization processing program 31 storage area, a leveling processing program 32 storage area, a cart configuration optimization processing data table 33 storage area, and a cart configuration table 34 storage area.

The cart configuration optimizing unit 21 is a database created by a system on another computer when started or appropriately executed, and is a design information 1, a part data 2, a production plan 3, a production line information 4, a part The necessary data is input from the stock 5 via the network 70.

The design information 1 describes the components used for each board to be manufactured. The component data 2 describes size information of each component. The production plan 3 describes the number of sheets to be produced for each substrate. The production line information 4 describes the configuration of the machine on which the production line is mounted. The component stock 5 describes the stock quantity of each component.

A part or all of the system for creating the database (design information 1, component data 2, production plan 3, production line information 4, and component stock 5) includes a computer on which the cart configuration optimizing device 10 is mounted. It is also conceivable that the databases created by those systems are installed on the same computer and coexist.

The cart configuration optimizing unit 21 executes the cart configuration optimizing process shown in the flowchart of FIG.

In step S101, the target substrate grouping unit 22 is started. The target board grouping unit 22 performs a target board grouping process illustrated in the flowchart of FIG. Since an increase in the number of groups causes an increase in setup, the purpose of this step is to group all the substrates with a small number of groups.

In step S201, from the production plan 3, the production plan information relating to the type of the substrate to be manufactured on the production line within a specified period (for example, the next six months) is read, and the production target substrates are listed.

In step S202, information on the components used on the production target board is read from the design information 1, and a table 201 (for example, eight types of boards will be described as production target boards) showing the component usage status for each target board shown in FIG. It is created and stored in the storage area of the cart configuration optimization processing data table 33. Next, the matching rate of the used components between the target boards is calculated by the following equation (Equation 1).
(Equation 1) 一致 Matching rate of used parts between target boards (%)｝ =｝ Number of common parts types used on both boards｝ / 総 Total number of parts types used on both boards｝ × 100 (%)
Table 202 of FIG. 6 shows the result of calculating the part coincidence rate.

(6) In step S203, the combinations of the boards are rearranged in the descending order of the matching rate of the component matching rate calculation result of the table 202 to create the table 203 of FIG.

In steps S204 to S211, the combinations of the substrates rearranged in the table 203 are selected one by one in descending order of the matching rate, and are sequentially allocated to the substrate group allocation table 204.
In step S206, if one of the combinations of the selected substrates has already been assigned to the group in the table 204, basically the other substrate is also assigned to the same group, and the process proceeds to S207. Move to S209.
In step S207, assuming that the other substrate is also assigned to the same group X, the total number of types of components used for all the substrates in the table 204 plus the substrate already assigned to group X in the table 204 is the production line mounting number. Upper limit of the number of possible parts types (e.g., equivalent to the total number of lanes of all carts that can be set simultaneously on all mounting machines installed on the production line. That is, different part types are set on all lanes of all carts) However, for parts with a large number of mounted components, it is conceivable to divide the parts into multiple lanes and set the same parts, and it is also possible to look at the margin of empty lanes, etc. It is conceivable that the upper limit of the number of component types that can be mounted on the production line is set to a value lower than the total number of lanes by a predetermined number.) If it is determined that the number of parts exceeds the number of component types that can be mounted on all mounting machines when the other board is allocated to the same group X, the process proceeds to S210 and the other board is allocated to a new group. If it is determined that it does not exceed, the process proceeds to S208, and the other substrate is assigned to group X.
In step S211, it is determined whether the assignment of the group in the table 204 for all the target boards (eight kinds of boards in this embodiment) has been determined. If not, the process proceeds to S204. finish. The result of ending the group assignment of the boards is as shown in the table 205 of FIG.

Here, a method of performing grouping based on the matching rate of used components between target substrates has been described as an example, but other methods such as a method of performing grouping based on correlation of used components between target substrates may be used. .

In step S102 of FIG. 3, in order to investigate the similarity between the groups according to the grouping of the target substrates (three groups in this embodiment) obtained in S101, first, as shown in FIG. The component use status table 201 is divided into three groups, and is aggregated for each group to generate a component use status table 206 for the group.

Next, the similarity between the groups shown in FIG. 8 is calculated. If the parts used in each group (in this embodiment, "part type" is called "parts") are regarded as elements included in one set of the set theory, the set of each group becomes The set is divided into seven subsets, including the intersection set, as shown in a graph 301, and these are referred to as regions A to G.

A search is made for a common part included in each of the areas A to G or a part included only in a set of a single group, and the number of parts is written in the seven subsets shown in the graph of 301, and the table of FIG. In the column of components included in each area 207, the names of the components included in each area are written. In the processing of S102, the table 207 is created in the storage area of the cart configuration optimization processing data table 33.
Here, the similarity refers to the number of parts included in each area, the number of common parts in the case of an intersection between sets of a plurality of groups, or the number of parts included only in a set of a single group. In some cases.

において In step S103 of FIG. 3, the component placement unit 23 is activated. The component placement unit 23 performs a component placement process shown in the flowchart of FIG.

In step S301 in FIG. 9, the arrangement of empty carts that can be set in all the loading machines installed on the production line is determined based on the number of empty carts corresponding to the number of groups (three groups in this embodiment) determined in S101. Only an array is prepared (see FIG. 10). The number of lanes of the empty cart in FIG. 10 is simplified to four lanes.

An embodiment in which parts are placed on a cart will be described with reference to FIGS. The components are arranged in order from the combination of components included in the region having the highest similarity. Parts in the same area are placed on the cart of the same mounting machine. Parts shared by a plurality of groups are placed in carts corresponding to each group of the same loading machine on a rule, and are arranged in order from the cart of the downstream loading machine. If this cannot be satisfied, the equipment is placed in the empty lane to the cart of the upstream loading machine in order from the downstream loading machine.
In the present embodiment, the components are arranged from the area C having the similarity of eight. Since the area C is a part used only by Gr3, eight parts (parts s to z) are arranged in the Gr3 compatible carts of the

loading machines

3 and 4. Here, the characters described in the lane 115 represent the component names.
Next, the components are arranged in the area D having the similarity of 7. Since the region D is a component that is used in common for Gr1 and Gr2, the component is arranged in a cart that supports both Gr1 and Gr2.
Similarly, the components included in all the areas are arranged (FIG. 11).

In step S302 in FIG. 9, from the table 207 in which the names of the components included in each area created in S102 are written, a combination of components (one (In some cases), one set at a time in order, and the subsequent component placement processing is repeated up to S309.

(4) In step S303, an empty lane in the cart arrangement of the group corresponding to the area selected in step S302 is searched from the downstream mounted machines.

In step S304, it is determined whether a combination of parts can be arranged in the searched empty lane cart. If it can be arranged, the process proceeds to S305. If it cannot be arranged, the process proceeds to S306.

In step S305, a combination of parts is arranged in an empty lane of the cart of the corresponding group, and the flow shifts to S309.

In step S306, it is determined whether the total number of parts of the combination of parts is larger than the total number of lanes of the cart. If YES, the process proceeds to S307, and if NO, the process proceeds to S308.

(4) In step S307, a combination of components is arranged over the corresponding cart and the cart of the mounting machine on the upstream side, and the process proceeds to S309.

(4) In step S308, an empty lane is searched for in the cart of the machine mounted on the upstream side, and the process proceeds to S304.

Next, the cart integration target confirmation and integration availability determination processing will be described with reference to FIG. The cart integration target is determined based on whether there is a cart in which the same parts are arranged in the same machine. In the example of FIG. 12, the cart groups 401 to 404 are targeted.
First, integration of the cart group 401 is examined. In the cart group 401, carts for Gr1, Gr2, and Gr3 are prepared, but only three types of components, ie, component a, component b, and component c are arranged. Therefore, since the three carts can be integrated by preparing the carts in which the three types of parts are arranged in a unified manner, the cart integration is performed.
In the cart group 402, since the number of parts exceeds five and the number of parts that can be mounted on one cart, it is determined that integration is impossible. The determination is similarly performed for the cart groups 403 to 404, and the result of the table 208 is obtained.

戻り Return to step S104 in the flowchart of FIG. If there is a cart integration target, the process proceeds to S105. If there is no cart integration target, the cart configuration optimization processing ends.

において In step S105, it is determined whether or not the cart integration target can be integrated. The criterion is whether the number of component types used in the cart group to be integrated fits in the cart. If the integration is possible, the process proceeds to S106; otherwise, the process proceeds to S107.

In step S106, the cart integration is performed on the cart integration target (a cart in which all the component types used in the target cart group are mounted and the cart group is integrated into one cart), and the process proceeds to S107. Transition.

In step S107, it is confirmed whether or not the integration of all cart integration targets has been determined. If all determinations have been made, the cart configuration optimizing process ends, and if there is an unconfirmed cart integration target, the process proceeds to S105.

FIG. 13 shows a cart configuration in which cart integration has been performed in the cart configuration optimizing process and optimization has been completed. The cart configuration data (the optimized cart configuration and the component arrangement to be stored in the cart) is stored in the cart configuration table 34 storage area.

The mounting time leveling unit 24 adjusts the arrangement of parts in the cart or across the carts so that the operation time of each mounting machine 100 is uniform with respect to the cart configuration data stored in the storage area of the cart configuration table 34. I do. Generally, it is realized by a tool provided by the onboard machine vendor.

In the present embodiment, in order to perform further optimization, adjustment is performed when cart integration becomes impossible in step S105 of the cart configuration optimizing process shown in the flowchart of FIG. 3 in the first embodiment.

FIG. 14 shows a flowchart of the cart configuration optimizing process executed by the cart configuration optimizing unit 21.
In step S105, it is determined whether the cart integration target can be integrated. The criterion is whether the number of component types used in the cart group to be integrated fits in the cart. If integration is not possible, the process moves to S401, which is an additional item in the second embodiment.

In step S401, it is checked one by one whether there is any part whose arrangement can be changed from the cart group in which the parts overflow from the cart. When there are a plurality of change destination candidates, empty lanes are sequentially set as the change destinations from the end mounted machine. If there is a part that can be changed, a change destination is determined, and the process proceeds to S402. If there is no part that can be changed, the process proceeds to S107.

(4) In step S402, it is checked whether the number of component types after the arrangement change fits in the cart. If it does not fit, the process returns to S401 again with the change information remaining, and checks whether there is any other component whose layout can be changed. If it fits, the process moves to S403.

(4) In step S403, the arrangement of the components extracted in step S401 is changed.

In step S404, cart integration is performed on the cart group after the arrangement change. This step is performed in the same procedure as step S106. The processing result stores the cart configuration data in the cart configuration table 34 storage area. After the processing, proceed to S107.

Hereinafter, a specific example will be described in detail.
FIG. 15 shows the results up to S104. Here, since there are five types of parts q, r, o, p, and k in the cart group 405, they cannot be contained in one cart.

Confirm that there is no component whose layout can be changed. Confirmation is performed in order from the parts used in a small group. In the present embodiment, the components q, r, and k are components used only in one group. Therefore, one of them is selected in an arbitrary order from among them, and whether or not the arrangement can be changed is examined.

まで From the consideration of the arrangement change to the cart integration, a description will be given with reference to FIG. Here, first, a change in the arrangement of the component q will be considered. Since the part q is used in Gr2, the arrangement can be changed to another cart 407 in the same group having an empty lane. When the arrangement is changed, the number of parts of the cart group 405 becomes four, and cart integration is possible. Therefore, by creating the cart 406, cart integration can be performed.

In this embodiment, the system user can confirm the result of the cart configuration optimizing process in the first and second embodiments.

The cart configuration output unit 25 displays the cart configuration data (the optimized cart configuration and the parts arrangement to be stored in the cart) stored in the cart configuration table 34 storage area on the display unit 50 so that the user can check the cart configuration data. .

Since the execution result of the mounting time leveling unit 24 is also stored in the cart configuration table 34 storage area, it is similarly displayed on the display unit 50. In this embodiment, however, the mounting time leveling unit 24 changes the component arrangement. It shall not be done.

FIG. 17 shows an example of the displayed result. The display includes a display 501 showing the cart configuration and component arrangement after optimization and a display 502 showing details of each cart.
In the display 501, it is possible to confirm which cart has been integrated, and in the display 502, it is possible to confirm the lane use rate in the cart.

The cart configuration output unit 25, based on cart configuration data (optimized cart configuration and component placement stored in the cart) stored in the storage area of the cart configuration table 34, arranges components for each mounting machine illustrated in FIG. The data is created and downloaded to each mounted device 100 via the communication unit 60 and the network 70.

(4) Each mounting machine 100 confirms whether or not a component to be used is set in a predetermined lane with respect to a board to be manufactured using the component placement data.

In this embodiment, the result of the cart configuration optimizing process in the first and second embodiments is notified to the setup operator.

The cart configuration output unit 25 performs a setup instruction for a setup worker illustrated in FIG. 19 based on the cart configuration data (the optimized cart configuration and the parts arrangement to be stored in the cart) stored in the storage area of the cart configuration table 34. A document is created and downloaded to the worker PC 200 via the communication unit 60 and the network 70.

The setup instruction is created for each cart, and contains information on the groups and parts arrangements produced by the cart. The setup worker prints this and posts it on each cart to confirm the setup required during production.

According to the present embodiment, it is possible to reduce the setup of a high-mix low-volume production line, and to shorten the lead time. Further, according to the present embodiment, the number of carts and feeders used can be reduced, and the capital investment can be reduced.

The present invention is not limited to the above-described embodiment, and includes various modifications. For example, the above-described embodiments have been described in detail in order to explain the present invention in an easy-to-understand manner, and are not necessarily limited to those having all the described configurations. In addition, a part of the configuration of one embodiment can be replaced with the configuration of another embodiment, and the configuration of one embodiment can be added to the configuration of another embodiment. Further, for a part of the configuration of each embodiment, it is possible to add, delete, or replace another configuration. In addition, some or all of the components of the device may be realized by software program processing, a hardware circuit, or the like.

DESCRIPTION OF SYMBOLS 1 ... Design information (DB), 2 ... Parts data (DB), 3 ... Production plan (DB), 4 ... Production line information (DB), 5 ... Parts inventory (DB), 10 ... Cart configuration optimization apparatus, 20 ... Calculation unit, 21 ... Cart configuration optimization unit, 22 ... Target board grouping unit, 23 ... Component placement unit, 24 ... Mounting time leveling unit, 25 ... Cart configuration output unit, 30 ... Storage unit, 31 ... Cart configuration Optimization processing program (storage area), 32: leveling processing program (storage area), 33: cart configuration optimization processing data table (storage area), 34: cart configuration table (storage area), 40: operation unit, 50 ... display unit, 60 ... communication unit, 70 ... network,
100: component mounting machine, 101: printed circuit board, 102: mounting head, 110: cart, 111, 112, 113: cart group, 114: lane, 115: lane on which characters are written, 120: feeder, 121: component.

Claims

A cart configuration optimizing device that determines a cart configuration of a component mounting machine installed on a production line,
A target board grouping unit that lists a board type having a production plan, and divides each board into groups based on relevance of used components between the boards,
A parts placement unit that places parts in empty carts arranged for each group based on the number of common parts between sets of used parts in each group and the number of used parts in a single group;
Comparing the results of parts being placed on carts for each group, corresponding to the same component loading machine, comparing the results, sharing common parts, and the total number of combined parts is within the number of cart lanes A cart configuration optimization unit that integrates cart groups for multiple groups,
A cart configuration optimizing device comprising:
The target board grouping unit lists the board types for which there is a production plan, calculates the matching rate of the components used between the boards, and assigns combinations of boards to groups in descending order of matching rates, and Determine the assignment of the other board according to the group to which one board belongs, and divide each board into groups so that the total number of parts used for all boards in one group falls within the upper limit of the number of parts that can be mounted on the production line The cart configuration optimizing device according to claim 1, wherein:
The component arranging unit is an empty cart in which combinations of corresponding parts are arranged for each group in descending order of similarity defined by the number of common parts between sets of used parts of each group or the number of used parts of a single group. 2. The cart configuration optimizing device according to claim 1, wherein parts are arranged in the cart.
The cart configuration optimizing unit compares the result of arranging the parts in the cart corresponding to each group, corresponding to the same component mounting machine, and has a common part. Consider changing the placement of some parts for cart groups that support multiple groups that exceed the number of lanes.If the total number of remaining parts is within the number of cart lanes due to the placement change, 2. The cart configuration optimizing device according to claim 1, wherein a corresponding cart group is integrated.
The apparatus according to claim 1, further comprising: a cart configuration output unit configured to output, to a display unit, data of the optimized cart configuration created by the cart configuration optimization unit and the component arrangement stored in the cart. 2. The cart configuration optimizing device according to 1.
The cart configuration after optimization output by the cart configuration output unit to the display unit and the data of the component arrangement stored in the cart include a history of integration of the cart group and a lane use rate in the cart. The cart configuration optimizing device according to claim 5, wherein
The cart configuration output unit manufactures, for each mounting machine, based on the optimized cart configuration created by the component placement unit and the cart configuration optimization unit and the component placement data stored in the cart. 6. The cart configuration optimizing device according to claim 5, wherein component arrangement data indicating in which lane the used component related to the board is set is generated and output.
The cart configuration output unit is based on the optimized cart configuration created by the component arrangement unit and the cart configuration optimization unit and the data of the component arrangement stored in the cart. 6. The cart configuration optimizing apparatus according to claim 5, wherein a setup instruction, which is created and includes information on groups and parts arrangements to be produced by the cart, is created and downloaded to an operator's PC.
By the calculator,
A process of grouping each board based on the relevance of used components between the boards to be produced;
Processing to aggregate the parts used in each group for each group,
A process of classifying the used parts for each group that has been aggregated;
Based on the number of parts for each classification, a process of arranging parts in empty carts for component mounting machines arranged for each group,
Comparing the results of parts being placed on carts for each group, corresponding to the same component loading machine, comparing the results, sharing common parts, and the total number of combined parts is within the number of cart lanes And performing a process of integrating cart groups corresponding to a plurality of groups.
With the calculator,
10. The cart configuration optimizing method according to claim 9, further comprising the step of outputting data of the cart configuration after integration and the component arrangement stored in the cart.
With the calculator,
11. The cart according to claim 10, wherein the outputted cart configuration after integration and the data of the component arrangement stored in the cart include a history of integration of the cart group and a lane usage rate in the cart. Configuration optimization method.
With the calculator,
Based on the cart configuration after the integration and the component placement data stored in the cart, for each mounting machine, create component placement data indicating in which lane the used components related to the board to be manufactured are set in which lane. The cart configuration optimizing method according to claim 10, wherein the cart configuration is output.
With the calculator,
Based on the data of the cart configuration after integration and the component arrangement to be stored in the cart, a setup instruction created for the setup operator in cart units and describing information on groups and component arrangements to be produced in the cart is provided. The cart configuration optimizing method according to claim 10, wherein the cart configuration is created and downloaded to a worker's PC.
With the calculator,
List the board types for which there is a production plan, calculate the matching rate of the parts used between the boards, assign the board combinations to groups in descending order of matching rate, and assign them to the group to which one of the boards belongs. In addition, the assignment of the other board is determined, and a process of grouping the boards is performed such that the total number of used parts of all the boards in one group falls within the upper limit of the number of parts that can be mounted on the production line. The cart configuration optimizing method according to claim 9.
The computer further compares the results of the parts being placed on the carts corresponding to each group, corresponding to the same component mounting machine, and has a common part, and the combined total number of parts is the number of cart lanes. Consider changing the placement of some parts for cart groups that support more than one group, and if the total number of remaining parts falls within the number of cart lanes due to the placement change, The cart configuration optimizing method according to claim 9, wherein a process of integrating the groups is performed.