JP6767627B2 - Part placement determination method and component placement determination device - Google Patents

Description

The present invention relates to a method for determining component arrangement and a component arrangement determining device for determining component arrangement in which component arrangement of a component mounting device is common to a plurality of types of mounting boards to be produced.

In a component mounting line configured by connecting a plurality of component mounting devices for mounting components on a board, a plurality of types of mounting boards are produced in order. When producing multiple types of mounting boards on a component mounting line, a so-called common component supply means for supplying components necessary for producing multiple types of mounting boards is arranged in advance on a component supply carriage that can be attached to and detached from the component mounting device. The placement is done. By arranging the component supply means in common, production can be continued without changing the component supply means on the component supply carriage when the mounting board to be produced changes (see, for example, Patent Document 1). ..

In Patent Document 1, the common arrangement is determined so that the number of setups for exchanging the parts supply means is reduced and the setup work time is shortened.

Japanese Patent No. 3830642

However, in the prior art including Patent Document 1, the setup work is executed according to the common arrangement optimized so as to reduce the production time of the board, and the mounting board is produced. However, the mounting board is produced in advance for the replacement parts supply carriage. The time required for the external setup work for arranging the parts supply means is not taken into consideration. Therefore, during the external setup work, the previous production is completed and the component mounting line is suspended, and as a result, the time until the production is completed may be long, and there is a problem that there is room for further improvement. ..

Therefore, an object of the present invention is to provide a component arrangement determination method and a component arrangement determination device for determining a component arrangement that can obtain higher productivity than before.

The method for determining the component arrangement of the present invention is to mount a plurality of types to be produced in a component mounting line in which a plurality of component mounting devices to which a plurality of component supply means capable of arranging a plurality of component supply means can be arranged are connected. It is a method of determining the component arrangement for determining the arrangement of the component supply means for each of a plurality of groups in which the board is divided so that the arrangement of the component supply means in the component mounting device is common. At least one or more of the parts supply means used in any of the other groups produced in front of the one group using the parts supply carriage used in the production and the one group are described above. The parts placement creation process for creating the parts placement so that the placement positions on the parts supply carriage are the same for one said group and the other said group, and the production of all the mounting boards to be produced are completed. The arrangement of the parts supply means for each group is determined so that the production completion time is shortened, including the production completion time calculation step for calculating the production completion time.

The component placement determining device of the present invention is a plurality of types of mounting to be produced in a component mounting line in which a plurality of component mounting devices to which a plurality of component supply means capable of arranging a plurality of component supply means can be attached and detached are connected. A component placement determination device for determining the arrangement of the component supply means for each of a plurality of groups in which the board is divided so that the arrangement of the component supply means in the component mounting device is common. At least one or more of the parts supply means used in any of the other groups produced in front of the one group using the parts supply carriage used in the production and the one group. The production of the component placement creation unit that creates the component placement so that the placement position on the parts supply carriage is the same in one said group and the other said group, and the production of all the mounting boards to be produced are completed. It is provided with a production completion time calculation unit that calculates the production completion time to be performed, and a parts arrangement determination unit that determines the arrangement of the parts supply means for each group so that the production completion time is shortened.

According to the present invention, it is possible to determine the arrangement of parts that can obtain higher productivity than before.

Configuration explanatory view of the component mounting system according to the embodiment of the present invention Configuration explanatory view of the component mounting line provided in the component mounting system according to the embodiment of the present invention. Top view of the component mounting device included in the component mounting system according to the embodiment of the present invention. Partial sectional view of the component mounting apparatus included in the component mounting system according to the embodiment of the present invention. A block diagram showing a configuration of a control system of a component mounting system according to an embodiment of the present invention. In the component mounting system according to the embodiment of the present invention, (a) explanatory diagram of production completion time in initial component arrangement (b) explanatory diagram of production completion time after optimization of component arrangement. Flow chart of the method of determining component arrangement in the component mounting system according to the embodiment of the present invention. Flow chart for calculating production completion time in the component mounting system according to the embodiment of the present invention (A) (b) Explanatory drawing of optimization of component arrangement in the component mounting system according to the embodiment of the present invention.

An embodiment of the present invention will be described in detail below with reference to the drawings. The configurations, shapes, and the like described below are examples for explanation, and can be appropriately changed according to the specifications of the component mounting system, component mounting line, and component mounting device. In the following, the corresponding elements are designated by the same reference numerals in all the drawings, and duplicate description will be omitted. In FIG. 3 and a part described later, the two axial directions orthogonal to each other in the horizontal plane are the X direction of the substrate transport direction (horizontal direction in FIG. 3) and the Y direction orthogonal to the substrate transport direction (vertical direction in FIG. 3). Is shown. In FIG. 4, the Z direction (vertical direction in FIG. 4) is shown as a height direction orthogonal to the horizontal plane. The Z direction is a vertical direction or an orthogonal direction when the component mounting device is installed on a horizontal plane.

First, the configuration of the component mounting system 1 will be described with reference to FIG. The component mounting system 1 has a configuration in which three component mounting lines L1 to L3 arranged on the floor F are connected by a communication network 2 and managed by a management computer 3. Each component mounting line L1 to L3 is configured by connecting a plurality of component mounting devices including a component mounting device as described later, and has a function of producing a mounting board in which components are mounted on the board. That is, the component mounting system 1 has component mounting lines L1 to L3 configured by connecting a plurality of component mounting devices. The component mounting lines L1 to L3 included in the component mounting system 1 do not have to be three, and may be one, two, or four or more.

A setup work support device 4 is arranged in the outer setup area Ap provided on the floor F. The setup work support device 4 is connected to the management computer 3 via the communication network 2. A plurality of replacement parts supply trolleys 5 (here, four parts supply trolleys 5A, 5B, 5C, 5D) to be the target of the setup work are connected to the setup work support device 4. Hereinafter, the replacement parts supply carriage 5 will be referred to as a "spare carriage 5 *".

A plurality of tape feeders 9 (see FIG. 4) for supplying parts are mounted on the spare carriage 5 * (parts supply carriage 5) connected to the setup work support device 4 by a worker in charge of the setup work. When the tape feeder 9 is attached to the spare trolley 5 *, power is supplied to the tape feeder 9 from the setup work support device 4 via the spare trolley 5 *, and the feeder control unit built in the tape feeder 9 (not shown). Is ready to communicate with the management computer 3. As a result, the management computer 3 acquires the status of the setup work such as the mounting status of the tape feeder 9 on the spare carriage 5 * and the replenishment status of the carrier tape 15 (see FIG. 4) holding the component D on the tape feeder 9. can do.

In this way, in the spare carriage 5 * connected to the setup work support device 4, the setup work can be executed without stopping the production of the mounting boards on the component mounting lines L1 to L3. That is, the setup work support device 4 supports the setup work (hereinafter, referred to as “outer setup work”) that is executed without stopping the production of the mounting board on the component mounting lines L1 to L3. The spare trolley 5 * (replacement parts supply trolley 5) for which the outer setup work has been completed is a setup work (hereinafter referred to as "inner setup work") executed by stopping the production of mounting boards on the parts mounting lines L1 to L3. ), It is replaced with the component supply carriage 5 to be replaced, which is mounted on the component mounting device.

Next, a detailed configuration of the component mounting lines L1 to L3 will be described with reference to FIG. The component mounting lines L1 to L3 have the same configuration, and the component mounting lines L1 will be described below. The component mounting line L1 is a solder printing device M1, a printing inspection device M2, a component mounting device M3 to M6, a mounting inspection device M7, and a reflow from the upstream side (left side of the paper surface) to the downstream side (right side of the paper surface) in the substrate transport direction. It is configured by connecting components mounting devices such as the device M8 in series.

The solder printing device M1, the printing inspection device M2, the component mounting devices M3 to M6, the mounting inspection device M7, and the reflow device M8 are connected to the management computer 3 via the communication network 2. The solder printing apparatus M1 executes a solder printing operation of printing solder on a substrate B carried in from the upstream side by a solder printing work unit via a mask. The print inspection device M2 executes a print inspection operation for inspecting the state of the solder printed on the substrate B by a print inspection work unit including a solder inspection camera.

The component mounting devices M3 to M6 execute the component mounting work of mounting the component D on the board B by the component mounting work unit. The component mounting line L1 is not limited to the configuration of four component mounting devices M3 to M6, and the component mounting devices M3 to M6 may be one to three or five or more. The mounting inspection device M7 executes a mounting inspection work for inspecting the state of the component D mounted on the substrate B by the mounting inspection work unit including the component inspection camera. The reflow device M8 heats the substrate B carried into the device by the substrate heating unit to cure the solder on the substrate B, and executes a substrate heating operation for joining the electrode portion of the substrate B and the component D.

Next, the configurations of the component mounting devices M3 to M6 will be described with reference to FIGS. 3 and 4. The component mounting devices M3 to M6 have the same configuration, and the component mounting device M3 will be described here. FIG. 4 partially shows the AA cross section in FIG. The component mounting device M3 has a function of mounting the component D on the substrate B.

In FIG. 3, a substrate transfer mechanism 7 is arranged in the X direction at the center of the base 6. The board transfer mechanism 7 transports the board B carried in from the upstream side, positions it at a position for executing the component mounting work, and holds it. Parts supply units 8 (1) and 8 (2) are provided on both sides of the substrate transfer mechanism 7. A plurality of parts feeders for supplying parts D are mounted side by side on the parts supply units 8 (1) and 8 (2). Feeder addresses 8a for specifying the mounting positions of these parts feeders are set in the parts supply units 8 (1) and 8 (2).

In the example shown in the present embodiment, the feeder address 8a in the component supply unit 8 (1) is 1-1L / R, 1-2L / R, 1 from the downstream side (right side in FIG. 3) to the upstream side. -3L / R ... is set. By designating these feeder addresses 8a, it is possible to individually identify the part feeders mounted on the component mounting device M3. Similarly, as the feeder address 8a in the component supply unit 8 (2), 2-1L / R, 2.2L / R, 2-3L / R ... Are set from the downstream side to the upstream side. The order setting method for the feeder address 8a is arbitrary, and the address order of the component supply units 8 (1) and 8 (2) may be set in reverse.

Here, an example is shown in which a tape feeder 9 having a function of pitch-feeding a carrier tape holding a component to be mounted is mounted as a parts feeder. The tape feeder 9 supplies the component D to the component take-out position by the mounting head of the component mounting mechanism described below by pitch-feeding the carrier tape containing the component D in the tape feeding direction. That is, the tape feeder 9 serves as a component supply means for supplying the component D.

In FIG. 3, a Y-axis beam 10 having a linear drive mechanism is arranged along the Y direction at one end of the upper surface of the base 6 in the X direction. Two X-axis beams 11 similarly provided with a linear drive mechanism are coupled to the Y-axis beam 10 so as to be movable in the Y direction. The X-axis beam 11 is arranged along the X direction. A mounting head 12 is mounted on each of the two X-axis beams 11 so as to be movable in the X direction. As shown in FIG. 4, the mounting head 12 includes a plurality of suction units 12a that can suck and hold the component D and move up and down. A suction nozzle 12b is provided at each tip of the suction unit 12a.

By driving the Y-axis beam 10 and the X-axis beam 11, the mounting head 12 moves in the X-direction and the Y-direction. As a result, the two mounting heads 12 suck and take out the component D from the component take-out positions of the tape feeders 9 arranged in the corresponding component supply units 8 (1) and 8 (2) by the suction nozzle 12b, and take out the board. It is mounted at the mounting point of the substrate B positioned on the transport mechanism 7. The Y-axis beam 10, the X-axis beam 11, and the mounting head 12 form a component mounting mechanism for mounting the component D on the substrate B by moving the mounting head 12 holding the component D.

The mounting time from taking out the component D from the tape feeder 9 and mounting it on the board B depends on the distance that the mounting head 12 moves from the tape feeder 9 to the mounting point of the board B. That is, the mounting time increases or decreases depending on the position of the tape feeder 9. For example, by arranging the tape feeder 9 that supplies the component D having a large number of mounts on the substrate B so as to be near the center of the component supply units 8 (1) and 8 (2), the moving distance of the mounting head 12 Can be shortened and the mounting time can be reduced.

In FIG. 3, a component recognition camera 13 is arranged between the component supply unit 8 and the substrate transfer mechanism 7. When the mounting head 12 from which the component is taken out from the component supply unit 8 moves above the component recognition camera 13, the component recognition camera 13 takes an image of the component D held by the mounting head 12 and holds the component D in a holding posture. Recognize. A board recognition camera 14 is attached to the plate 11a to which the mounting head 12 is attached. The board recognition camera 14 moves integrally with the mounting head 12.

When the mounting head 12 moves, the board recognition camera 14 moves above the board B positioned by the board transfer mechanism 7, and images the board mark (not shown) provided on the board B to image the board B. Recognize the position. In the component mounting operation of the mounting head 12 on the board B, the mounting position is corrected in consideration of the recognition result of the component D by the component recognition camera 13 and the recognition result of the board position by the board recognition camera 14.

In FIG. 4, the parts supply units 8 (1) and 8 (2) are composed of a parts supply carriage 5 in which a plurality of tape feeders 9 are previously mounted on the feeder base 5a. The parts supply carriage 5 is detachably configured with respect to the base 6. When the tape feeder 9 is mounted on the feeder base 5a, the feeder control unit built in the tape feeder 9 is electrically connected to the mounting control unit 21 (see FIG. 5) of the component mounting devices M3 to M6. The parts supply carriage 5 holds a reel 16 for storing the carrier tape 15 in a wound state. The carrier tape 15 drawn from the reel 16 is attached to the tape feeder 9. The tape feeder 9 pitch-feeds the carrier tape 15 to the component take-out position by the suction nozzle 12b.

In this way, the component supply carriage 5 to which a plurality of component supply means (tape feeders 9) for supplying the component D can be arranged can be attached to and detached from the component mounting device M3. Then, in the component mounting device M3, the board transport mechanism 7, the component mounting mechanism (Y-axis beam 10, X-axis beam 11, mounting head 12), the component recognition camera 13, and the board recognition camera 14 transport the board B to the component. A component mounting work unit 17 (see FIG. 5) is configured to mount the component D supplied by the supply units 8 (1) and 8 (2) on the conveyed board B.

Next, the configuration of the control system of the component mounting system 1 will be described with reference to FIG. The component mounting lines L1 to L3 included in the component mounting system 1 have the same configuration, and the component mounting lines L1 will be described below. The component mounting devices M3 to M6 included in the component mounting line L1 have the same configuration, and the component mounting device M3 will be described below.

In FIG. 5, the component mounting device M3 includes a mounting control unit 21, a mounting storage unit 22, a component supply unit 8, a component mounting work unit 17, and a communication unit 23. The communication unit 23 is a communication interface, and exchanges signals and data with other component mounting devices M4 to M6, other component mounting lines L2 and L3, and a management computer 3 via a communication network 2. The mounting control unit 21 controls the tape feeder 9 and the component mounting work unit 17 mounted on the component supply unit 8 based on the component mounting data stored in the mounting storage unit 22, so that the component mounting work is performed on the component mounting device M3. To execute.

In FIG. 5, the management computer 3 includes a management control unit 31, a management storage unit 32, an input unit 33, a display unit 34, and a communication unit 35. The input unit 33 is an input device such as a keyboard, a touch panel, and a mouse, and is used when inputting an operation command or data. The display unit 34 is a display device such as a liquid crystal panel, and displays various information such as an operation screen for operation by the input unit 33. The communication unit 35 is a communication interface, and exchanges signals and data with the component mounting devices M3 to M6 and the setup work support device 4 of the component mounting lines L1 to L3 via the communication network 2.

The management control unit 31 is an arithmetic unit such as a CPU, and manages the component mounting system 1 based on the information stored in the management storage unit 32. The management control unit 31 includes a component arrangement creation unit 31a, a production time calculation unit 31b, a setup work time calculation unit 31c, a production completion time calculation unit 31d, and a component arrangement determination unit 31e as internal processing functions. The management storage unit 32 is a storage device, and stores mounting data 32a, group information 32b, component placement information 32c, calculation time information 32d, and the like.

In FIG. 5, the mounting data 32a is data such as a component type of the component D to be mounted and a mounting point on the board B, and is stored for each mounting board V to be produced. In the group information 32b, a plurality of types of mounting boards V to be produced on the component mounting lines L1 to L3 are arranged with tape feeders 9 (component supply means) in the component mounting devices M3 to M6 (hereinafter, referred to as "component arrangement"). .) Is stored so that the information of the group G of the mounting board V of the common arrangement divided so as to be common is stored. The group G of the mounting board V is predetermined based on the type of the mounting board V whose production is planned on the component mounting lines L1 to L3 in a predetermined period (for example, one day), the number of sheets to be produced, and the like.

The component placement creation unit 31a is a spare trolley 5 * (or a component supply unit) mounted on the component supply unit 8 of the component mounting devices M3 to M6 included in the component mounting lines L1 to L3 based on the mounting data 32a and the group information 32b. The parts supply trolley 5) mounted on the 8 and the feeder address 8a in the parts supply unit 8 of the tape feeder 9 (part D) mounted on the spare trolley 5 * (or the parts supply trolley 5) are linked. The component arrangement is created for each group G and stored in the management storage unit 32 as the component arrangement information 32c. The component layout creating unit 31a creates a component layout based on predetermined conditions such as a condition in which the production time Tv of the mounting board V, which will be described later, is shortened, and a condition in which the external setup work time Tw is shortened.

In FIG. 5, the production time calculation unit 31b is planned in the component mounting lines L1 to L3 in which the tape feeder 9 (component D) is arranged according to the created component arrangement based on the mounting data 32a and the component arrangement information 32c. The production time Tv required for producing the number of mounted boards V to be produced is calculated for each mounted board V and stored in the management storage unit 32 as the calculated time information 32d.

The setup work time calculation unit 31c calculates and calculates the outer setup work time Tw required for the outer setup work and the inner setup work time Tc required for the inner setup work based on the mounting data 32a, the group information 32b, and the component arrangement information 32c. It is stored in the time information 32d. That is, the setup work time calculation unit 31c serves as an outer setup work calculation unit for calculating the outer setup work time Tw for the outer setup work and an inner setup work calculation unit for calculating the inner setup work time Tc for the inner setup work. It has a function.

In the external setup work, the tape feeder 9 (parts supply means) used in the group G to be produced next to the group G being produced on the component mounting lines L1 to L3 is removed from the component mounting lines L1 to L3. This is a work of arranging (mounting) the parts supply trolley 5 (spare trolley 5 *) according to the parts arrangement. In the component mounting system 1 of the present embodiment, the external setup work is executed on the spare carriage 5 * connected to the setup work support device 4 in the external setup area Ap.

In the inner setup work, when the parts mounting lines L1 to L3 are set up for the next production target group G, the parts supply carriages 5 mounted on the parts mounting devices M3 to M6 are set up by the outer setup work. Next, the work is to replace the tape feeder 9 used in the group G to be produced with the spare carriage 5 * (parts supply carriage 5) on which the tape feeder 9 is arranged.

In FIG. 5, the production completion time calculation unit 31d can produce all the mounting boards V to be produced based on the production time Tv, the outer setup work time Tw, and the inner setup work time Tc included in the calculation time information 32d. The completed production completion time Tf is calculated and stored in the calculated time information 32d. The parts arrangement determination unit 31e creates the parts arrangement by the parts arrangement creation unit 31a, calculates the production time Tv by the production time calculation unit 31b, and calculates the outer setup work time Tw and the inner setup work time Tc by the setup work time calculation unit 31c. , The production completion time calculation unit 31d repeatedly executes the calculation of the production completion time Tf, and determines the component arrangement for each group G so that the production completion time Tf is shortened.

Here, with reference to FIG. 6A, the group G of the mounting board V, the production time Tv, the outer setup work time Tw, the inner setup work time Tc, and the production completion time Tf will be described. Here, an example will be described in which six types of mounting boards V1 to V6 are produced by dividing them into four groups G1 to G4 in the component mounting line L1. The grouping is stored in the group information 32b in advance. Here, the mounting boards V1 and V2 are divided into group G1, the mounting board V3 is divided into group G2, the mounting board V4 is divided into group G3, and the mounting board V5 is divided into group G4.

FIG. 6A shows an example of the initial component arrangement in which the component arrangement is created by the component arrangement creation unit 31a under the condition that the production times Tv1 to Tv5 of the mounting boards V1 to V5 are the shortest. At the start of production, the component mounting devices M3 to M6 of the component mounting line L1 have a plurality of component supply carriages 5 (hereinafter, "trolley group R1") in which the components used in the group G1 (mounting boards V1 and V2) are arranged. ”) Is installed.

Further, a plurality of component supply carriages 5 (hereinafter referred to as "trolley group R2") used in the group G2 (mounting board V3) are connected to the setup work support device 4 in the outer setup area Ap, and are connected to the component mounting line. In parallel with the production of the mounting boards V1 and V2 of the group G1 in L1, the external setup work for the group G2 (mounting board V3) is performed.

In FIG. 6A, after the production of the mounting board V2 of the group G1 is finished, the trolley group R1 is removed from the component mounting devices M3 to M6, and the trolley group R2 for which the component arrangement for the group G2 (mounting board V3) is completed is completed. It is mounted on the component mounting devices M3 to M6. The removed carriage group R1 is transported to the outer setup area Ap, connected to the setup work support device 4, and the outer setup work for the group G3 (mounting board V4) is performed.

Similarly, after the production of the mounting board V3 of the group G2 is finished, the trolley group R2 is removed from the component mounting devices M3 to M6, and the trolley group R1 for which the component placement for the group G3 (mounting board V4) is completed is the component mounting device. It is attached to M3 to M6. The removed trolley group R2 is subjected to external setup work for the group G4 (mounting board V5). Then, after the production of the mounting board V4 of the group G3 is completed, the trolley group R1 is removed from the component mounting devices M3 to M6, and the trolley group R2 for which the component arrangement for the group G4 (mounting board V5) is completed is the component mounting device M3 to M3. It is attached to M6.

In FIG. 6A, the setup work time calculation unit 31c changes the component arrangement of the component mounting line L1 from group G1 to group G2. Internal setup work time Tc1 required for setup change C1 and from group G2 to group G3. The internal setup work time Tc2 required for the setup change C2 to be changed and the internal setup work time Tc3 required for the setup change C3 to be changed from the group G3 to the group G4 are calculated.

Further, the setup work time calculation unit 31c arranges the parts for the group G2 (mounting board V3) in the trolley group R2 and the parts for the group G3 (mounting board V4) in the trolley group R1. The outer setup work time Tw2 and the outer setup work time Tw3 for arranging the parts for the group G4 (mounting board V5) in the carriage group R2 are calculated.

In FIG. 6A, the production completion time calculation unit 31d is a trolley group for the next group G2 to G4 based on the production time Tv1 to Tv5, the inner setup work time Tc1 to Tc3, and the outer setup work time Tw1 to Tw3. The production completion time Tf0 is calculated on the condition that the setup changes C1 to C3 are started when the component placement (outer setup work) on R1 and R2 is completed.

Specifically, the end time of the outer setup work time Tw1 for the group G2 (mounting board V3) is earlier than the end time of the production of the mounting boards V1 and V2 of the group G1. Therefore, immediately after the production of the mounting board V2 is completed, the setup change C1 for changing the component mounting line L1 from the group G1 to the group G2 is started.

The end time of the outer setup work time Tw2 for the group G3 (mounting board V4) is later than the end time of the production of the mounting board V3 of the group G2. Therefore, from the completion of the production of the mounting board V3 to the start of the setup change C2 to the group G3, the external setup work waiting time Tq1 in which the production of the mounting board V is suspended occurs (Tq1 = Tw2- (Tc1 + Tv3)). .. Similarly, an external setup work waiting time Tq2 occurs from the completion of production of the mounting board V4 to the start of the setup change C3 to the group G4 (Tq2 = Tw3- (Tc2 + Tv4)).

Then, the production completion time calculation unit 31d calculates the production completion time Tf0 by adding the production time Tv1 to Tv5, the inner setup work time Tc1 to Tc3, and the outer setup work waiting time Tq1 and Tq2 (Tf0 = Tv1 + Tv2 + Tc1 + Tv3 + Tq1 + Tc2 + Tv4 + Tq2 + Tc3). In this way, the production completion time calculation unit 31d considers the external setup work time Tw, and in the group G2 (G3) in which the completion of the external setup work to the group G3 (G4) to be produced next is being produced. Production of all mounting boards V1 to V5, including the external setup work waiting time Tq1 (Tq2), in which the component mounting line L1 is suspended (production is stopped) due to being later than the completion of production of the mounting board V3 (V4). The production completion time Tf0 at which is completed is calculated.

As described above, the management computer 3 of the present embodiment includes the component arrangement creating unit 31a for creating the component arrangement (arrangement of the component supply means in the component mounting devices M3 to M6) and the production for calculating the production completion time Tf. It is a component placement determination device that includes a completion time calculation unit 31d and a component placement determination unit 31e that determines component placement for each group G so that the production completion time Tf is short.

In FIG. 5, the setup work support device 4 includes a support control unit 41, a support storage unit 42, a trolley connection unit 43, an input unit 44, a display unit 45, and a communication unit 46. The input unit 44 is an input device such as a keyboard, a touch panel, and a mouse, and is used when inputting an operation command or data. The display unit 45 is a display device such as a liquid crystal panel, and displays various screens such as an operation screen for operation by the input unit 44, as well as various information such as a setup work procedure and a progress status of the setup work.

The communication unit 46 is a communication interface, and exchanges signals and data with and from the management computer 3 via the communication network 2. The support control unit 41 is an arithmetic unit such as a CPU, and controls the setup work support device 4 based on the information stored in the support storage unit 42. The support storage unit 42 is a storage device, and stores parts arrangement, setup work procedure, and the like. A spare carriage 5 * (part supply carriages 5A, 5B, etc. in FIG. 1) is connected to the carriage connection portion 43. The carriage connection unit 43 communicates with a feeder control unit built in each tape feeder 9 mounted on the component supply carriage 5 via the component supply carriage 5.

Next, along the flow of FIGS. 7 and 8, referring to FIGS. 6 and 9, a component mounting device is used for each group G of a plurality of types of mounting boards V to be produced on the component mounting lines L1 to L3. A method of determining the component arrangement for determining the arrangement (part arrangement) of the component supply means (tape feeder 9) in M3 to M6 will be described. Here, an example in which six types of mounting boards V1 to V6 are divided into four groups G1 to G4 and produced in the component mounting line L1 shown in FIGS. 6A and 6B will be described.

In FIG. 7, the component arrangement creating unit 31a arranges the initial components under the condition that the production times Tv1 to Tv6 of the mounting boards V1 to V6 are the shortest, based on the information of the group G and the mounting data 32a included in the group information 32b. (ST1: Initial component placement creation process). The created initial component arrangement is stored in the component arrangement information 32c. Next, the production completion time Tf0 is calculated (ST2: production completion time calculation step).

Here, the details of the production completion time calculation step (ST2) will be described with reference to FIG. First, the production time calculation unit 31b calculates the production times Tv1 to Tv6 of the mounting boards V1 to V6 in the created component arrangement for each mounting board V1 to V6 (ST11: production time calculation step). Next, the setup work time calculation unit 31c calculates the inner setup work time Tc (ST12: inner setup work time calculation step).

Next, the setup work time calculation unit 31c uses the tape feeder 9 (parts supply means) used in the group G2 (G3, G4) to be produced next to the group G1 (G2, G3) being produced on the component mounting line L1. Calculate the external setup work time Tw1 (Tw2, Tw3) required for the external setup work to be placed on the parts supply carriage 5 (spare carriage 5 *) removed from the component mounting line L1 (ST13: External setup work time calculation process). .. Next, the production completion time calculation unit 31d calculates the production completion time Tf0 based on the production time Tv, the inner setup work time Tc, and the outer setup work time Tw (ST14: production completion time calculation step). The calculated production completion time Tf0 is stored in the calculated time information 32d.

As shown in FIG. 6A, the production completion time Tf0 includes an external setup work waiting time Tq1 (Tq2) in which the production of the mounting substrate V4 (V5) on the component mounting line L1 is suspended. Therefore, optimization of the component layout is executed in which the component layout is changed so that the external setup work waiting time Tq1 (Tq2) is reduced and the production completion time Tf is shortened. In the initial component arrangement, the feeder addresses 8a of the tape feeders 9 arranged in the carriage groups R1 and R2 in the external setup work are optimized so that the production times Tv1 to Tv6 of the mounting boards V1 to V6 are the shortest. However, in the external setup work, since the tape feeder 9 specified at the optimized feeder address 8a is attached, the external setup work times Tw1 to Tw3 are long.

Therefore, in the optimization of the component arrangement of the present embodiment, the trolley groups R1 and R2 removed from the component mounting devices M3 to M6 are then mounted on the component mounting devices M3 to M6 for the group G to be produced. During the work, the component layout is changed so as not to change the layout of the tape feeder 9 that supplies the component D (hereinafter, referred to as “takeover component D *”) to be used in the next production.

For example, in FIG. 6A, the parts arrangement creation unit 31a uses the trolley group R1 (parts supply trolley 5) used in the production of the group G3 (one group) in front of the group G3 (one group). At least one or more tape feeders 9 (parts supply means) used in both the produced group G1 (another group) and the group G3 (one group) are used in the group G3 (one group) and the group G1 (one group). The parts arrangement is created so that the arrangement positions on the carriage group R1 (parts supply carriage 5) are the same as those of the other groups). As a result, the number of times the tape feeder 9 is attached / detached can be reduced, and the external setup work time Tw2 can be shortened.

In FIG. 7, in optimizing the component arrangement, first, the component arrangement creating unit 31a determines the position of one of the tape feeders 9 * that supplies the takeover component D * from the component arrangement stored in the component arrangement information 32c. Create a changed component layout (ST3: component layout change process).

An example of the takeover component D * will be described with reference to FIG. In FIG. 9A, a part of the component arrangement of the trolley group R1 to be externally set up for the group G3 mounts the component supply trolley 5 on the component supply unit 8 (1) of the component mounting devices M3 to M6. Shown in state. In FIGS. 9 (a) and 9 (b), the tape feeder 9 * that supplies the takeover component D * from the group G1 is hatched with diagonal lines.

The component arrangement creating unit 31a is different from the creation of the initial component arrangement in which the positions of the plurality of tape feeders 9 * are changed so that the production time Tv4 of the mounting board V4 of the group G3 is the shortest from the state of FIG. 9A. Change only the position of one tape feeder 9 *. For example, the position of the tape feeder 9 * (1) that supplies the takeover component D * with the feeder address 8a mounted on 1-1L / R is 1-8L / R for the feeder address 8a shown in FIG. 9B. Change to the position of (arrow a).

In FIG. 7, the production completion time calculation step (ST2) is then executed, and the production completion time Tf in the component arrangement changed in the component arrangement change step (ST3) is calculated. If there is another tape feeder 9 * that supplies the takeover part D * whose position can be changed (Yes in ST4), the part arrangement change step (ST3) and the production time calculation step (ST2) are executed, and one is executed. The production completion time Tf in the component arrangement in which the position of the tape feeder 9 * is changed is calculated.

When the production completion time Tf is calculated for all the component arrangements of the combination in which the position of the tape feeder 9 * that supplies the takeover component D * is changed (No in ST4), the component arrangement determination unit 31e has the production completion time Tf. The component placement is determined for the shortest component placement (ST5: component placement determination process).

Here, an example of the production completion time Tf1 after optimizing the component arrangement will be described with reference to FIG. 6B. External setup work time Tw1 * for arranging parts for group G2 (mounting board V3) in trolley group R2 based on optimized component arrangement by setup work time calculation unit 31c, group G3 (mounting) in trolley group R1 The external setup work time Tw2 * for arranging the parts for the board V4) and the external setup work time Tw3 * for arranging the parts for the group G4 (mounting board V5) in the carriage group R2 are calculated. Due to the optimization, the outer setup work time Tw2 * is shorter than the outer setup work time Tw2 of the initial component arrangement (Tw2 * <Tw2). Further, the outer setup work time Tw3 * is shorter than the outer setup work time Tw3 of the initial component arrangement (Tw3 * <Tw3).

Further, based on the optimized component arrangement by the setup work time calculation unit 31c, the internal setup work time Tc1 * required for the setup change C1, the internal setup work time Tc2 * required for the setup change C2, and the inside required for the setup change C3. The setup work time Tc3 * has been calculated. Further, the production time calculation unit 31b calculates the production times Tv1 * to Tv5 * of the mounting boards V1 to V5 based on the optimized component arrangement. The production times Tv1 * to Tv5 * after the optimization of the component arrangement are longer than the production times Tv1 to Tv5 of the initial component arrangement (Tv1 *> Tv1, Tv2 *> Tv2, ...).

In FIG. 6B, the outer setup work waiting time Tq1 and the group when changing from the group G2 to the group G3, which occurred in the initial component arrangement, due to the shortening of the outer setup work time Tw1 * to Tw3 *. There is no external setup work waiting time Tq2 when changing from G3 to group G4. Therefore, the production time Tv1 * to Tv5 * is longer after the component placement is optimized, but the production completion time Tf1 (Tf1 = Tv1 * + Tv2 * + Tc1 * + Tv3 * + Tc2 * + Tv4 * + Tc3 * + Tv5 *) is the initial part placement. The production completion time is shorter than Tf0 (Tf1 <Tf0).

As described above, in the component arrangement determination method of the present embodiment, the component arrangement determination unit 31e repeatedly executes the component arrangement change step (ST3) and the production time calculation step (ST2), and the production completion time Tf. The component arrangement is optimized by determining the component arrangement (arrangement of the component supply means) for each group G1 to G4 so that This makes it possible to determine the component arrangement that can obtain higher productivity than before.

In the above method for determining the parts arrangement, the spare trolleys 5 * (parts supply trolleys 5) constituting the trolley groups R1 and R2 are created under the condition that they do not change even if the group G changes. Arrangement creation is not limited to this. For example, the spare trolley 5 * removed from the component mounting lines L2 to L3 may be added to form the trolley group R to create a component arrangement, or the spare trolley 5 * removed from the component mounting line L1 may be a component. In addition to the carriage group R to be mounted on the mounting lines L2 to L3, a component arrangement may be created.

The component arrangement determination method and component arrangement determination device of the present invention have the effect of being able to determine the component arrangement that can obtain higher productivity than before, and component mounting for mounting components on a substrate. Useful in the field.

3 Management computer (device for determining component placement)
5 Parts supply trolley 9 Tape feeder (parts supply means)
D component G1 to G4 group L1 to L3 component mounting line M3 to M6 component mounting device Tw1 to Tw3, Tw1 * to Tw3 * External setup work time V1 to V5 mounting board

Claims (4)

In a component mounting line in which a plurality of component mounting devices to which a plurality of component supply means capable of arranging a plurality of component supply means can be arranged are connected, a plurality of types of mounting boards to be produced are supplied to the component mounting device. It is a method of determining the component arrangement for determining the arrangement of the component supply means for each of a plurality of groups divided so that the arrangement of the means is common.
At least one or more of the parts used in any of the other groups produced in front of the one group using the parts supply carriage used in the production of the one group and the one group. The supply means includes a component arrangement creating step of creating a component arrangement so that the one group and the other group have the same arrangement position on the parts supply carriage.
The parts supply means for each group are arranged so as to shorten the production completion time, including a production completion time calculation step for calculating the production completion time for completing the production of all the mounting substrates to be produced. How to determine the component placement. External setup for external setup work in which the component supply means used in the group to be produced next to the group being produced on the component mounting line is placed on the component supply carriage removed from the component mounting line. Including the external setup work time calculation process to calculate the work time
The method for determining component arrangement according to claim 1, wherein in the production completion time calculation step, the production completion time is calculated in consideration of the external setup work time. In a component mounting line in which a plurality of component mounting devices to which a plurality of component supply means capable of arranging a plurality of component supply means can be arranged are connected, a plurality of types of mounting boards to be produced are supplied to the component mounting device. It is a component arrangement determining device that determines the arrangement of the component supply means for each of a plurality of groups divided so that the arrangement of the means is common.
At least one or more of the parts used in any of the other groups produced in front of the one group using the parts supply carriage used in the production of the one group and the one group. The supply means includes a component arrangement creating unit that creates component arrangements so that the one group and the other group have the same arrangement positions on the parts supply carriage.
A production completion time calculation unit that calculates a production completion time for completing the production of all the mounting boards to be produced,
A component arrangement determination device including a component arrangement determination unit that determines the arrangement of the component supply means for each group so that the production completion time is shortened. External setup for external setup work in which the component supply means used in the group to be produced next to the group being produced on the component mounting line is placed on the component supply carriage removed from the component mounting line. It also has an external setup work time calculation unit that calculates the work time.
The component arrangement determining device according to claim 3, wherein the production completion time calculation unit calculates the production completion time in consideration of the external setup work time.

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