CN112154718A

CN112154718A - Component mounting system

Info

Publication number: CN112154718A
Application number: CN201880093646.5A
Authority: CN
Inventors: 大山茂人; 小林春菜
Original assignee: Fuji Corp
Current assignee: Fuji Corp
Priority date: 2018-05-25
Filing date: 2018-05-25
Publication date: 2020-12-29
Anticipated expiration: 2038-05-25
Also published as: CN112154718B; JPWO2019225009A1; JP6986148B2; WO2019225009A1

Abstract

The component mounting system includes: a unit replacing device which moves along the arrangement direction of the plurality of component mounting machines and automatically replaces the component supplying unit between the unit replacing device and the component mounting machines; an information storage part storing unit information including position information of a plurality of mounting positions where component supply units are mounted to the component mounting machine and identification information of the component supply units at the respective mounting positions; an instruction output unit that outputs an automatic replacement instruction to the unit replacement device, the automatic replacement instruction including designation of a mounting/dismounting position of the component supply unit to be automatically replaced among the plurality of mounting positions; the status confirmation unit performs a status confirmation process of confirming, based on the unit information, whether or not there is a difference between the mounting status of the component supply unit at the mounting/dismounting position and the mounting status at the time of outputting the automatic replacement instruction, during a period from when the automatic replacement instruction is output to when the unit replacement device moves and mounting of the component supply unit at the mounting/dismounting position is started.

Description

Component mounting system

Technical Field

The present specification discloses a component mounting system.

Background

Conventionally, in a component mounting system of a component mounting machine including a cassette-type feeder (component supply unit) for supplying components detachably mounted, a unit replacement device such as a robot for automatically replacing the feeder has been proposed (see, for example, patent document 1). In this system, the replacement timing of each feeder is set in advance based on the production schedule of the substrate and the remaining amount of components in each feeder, and the unit replacement device is controlled so that the feeder is attached and detached at the replacement timing to perform automatic replacement. This eliminates the need for the operator to replace the feeder.

Prior art documents

Patent document 1: japanese patent laid-open publication No. 2017-130593

Disclosure of Invention

Problems to be solved by the invention

However, in the component mounting system, the worker may attach and detach the feeder to and from the component mounting machine without authorization. For example, the operator may remove a feeder to be removed by the unit replacement device first, or the operator may attach another feeder after removing the feeder, or the operator may attach another feeder to a portion of the unit replacement device where the feeder is attached. Such attachment and detachment of the feeder by the operator may be performed after an automatic replacement instruction is output to the unit replacement device. In this case, the unit replacement device cannot perform the removal operation because the feeder to be removed does not exist, or removes a feeder different from the instruction, or attempts to attach a feeder to a site to which another feeder is already attached. In this case, the unit replacement device cannot be automatically replaced according to the instruction, and may damage the equipment.

The present disclosure is directed to a structure for automatically replacing a component supply unit, and a main object of the present disclosure is to prevent automatic replacement from being performed differently from an instruction, and to appropriately perform automatic replacement.

Means for solving the problems

In order to achieve the main object, the present disclosure adopts the following aspects.

The component mounting system of the present disclosure is a component mounting apparatus including a plurality of component supply units for detachably mounting components, the component mounting system including: a unit exchanging device which moves along the arrangement direction of the plurality of component mounting machines and automatically exchanges the component supply unit between the unit exchanging device and the component mounting machines; an information storage unit that stores unit information including position information of a plurality of mounting positions at which the component supply unit is mounted in the component mounting machine and identification information of the component supply unit at each mounting position; an instruction output unit configured to output an automatic replacement instruction to the unit replacement device, the automatic replacement instruction including designation of a position of attachment and detachment of the component supply unit to be automatically replaced among the plurality of assembly positions; and a situation confirmation unit that performs a situation confirmation process of confirming, based on the unit information, whether or not there is a difference between the mounting situation of the component supply unit at the mounting/dismounting position and the mounting situation at the time of outputting the automatic replacement instruction, during a period from when the automatic replacement instruction is output to when the unit replacement device moves and mounting of the component supply unit at the mounting/dismounting position is started.

The component mounting system of the present disclosure outputs an automatic replacement instruction to the unit replacement device, the automatic replacement instruction specifying a mounting and dismounting position of the component supply unit as an automatic replacement target in a plurality of mounting positions including a plurality of mounting positions at which the component supply unit is mounted. Further, during a period from when the automatic replacement instruction is output to when the unit replacement device moves to start the removal of the component supply unit at the removal and attachment position, a situation confirmation process is performed to confirm whether or not there is a difference between the attachment situation of the component supply unit at the removal and attachment position and the attachment situation at the time when the automatic replacement instruction is output. Thus, it is possible to grasp that the component supply unit is not automatically replaced as instructed by the operator who has performed the removal or attachment of the component supply unit after the output of the automatic replacement instruction before the removal or attachment of the component supply unit. Therefore, it is possible to prevent automatic replacement from being performed differently from the instruction and to appropriately perform automatic replacement.

Drawings

Fig. 1 is a schematic configuration diagram showing a configuration of a component mounting system 10.

Fig. 2 is a schematic configuration diagram showing the configuration of the component mounter 20.

Fig. 3 is a schematic configuration diagram showing the configuration of the feeder 30.

Fig. 4 is a schematic configuration diagram showing the configuration of the loader 50.

Fig. 5 is a block diagram relating to control of the component mounting system 10.

Fig. 6 is an explanatory diagram showing an example of feeder management information.

Fig. 7 is a flowchart showing an example of the feeder automatic replacement process.

Fig. 8 is a flowchart showing an example of feeder status confirmation processing.

Fig. 9 is a flowchart showing an automatic feeder replacement process according to a modification.

Fig. 10 is a flowchart showing an automatic feeder replacement process according to a modification.

Detailed Description

Next, a mode for carrying out the present disclosure will be described with reference to the drawings.

Fig. 1 is a schematic configuration diagram showing the configuration of a component mounting system 10 according to the present embodiment, fig. 2 is a schematic configuration diagram showing the configuration of a component mounting machine 20, and fig. 3 is a schematic configuration diagram showing the configuration of a feeder 30. Fig. 4 is a schematic configuration diagram showing the configuration of the loader 50, and fig. 5 is a configuration diagram relating to control of the component mounting system 10. In fig. 1, the left-right direction is the X direction, the front-back direction is the Y direction, and the up-down direction is the Z direction.

As shown in fig. 1, the component mounting system 10 includes: printing machine 12, printing inspection machine 14, a plurality of component mounting machines 20, a mounting inspection machine (not shown), loader 50, feeder storage 60, and management device 80 (see fig. 5). The printer 12 prints solder onto the substrate S. The printing inspection machine 14 inspects the state of the solder printed by the printing machine 12. A plurality of component mounters 20 are arranged in line along the conveying direction (X direction) of the substrate S, and mount components supplied from feeders 30 on the substrate S. The mounting inspection machine inspects the mounting state of the components mounted by the component mounting machine 20. The loader 50 supplies a plurality of component mounters 20 with a required feeder 30 or collects and uses a feeder 30 from a component mounter 20. The feeder storage 60 stores the feeder 30 scheduled to be used in the component mounter 20 and the used feeder 30. The management device 80 manages the entire system. The printing machine 12, the printing inspection machine 14, the plurality of component mounting machines 20, and the mounting inspection machine are arranged in this order along the conveyance direction of the substrate S to constitute a production line. The feeder stocker 60 is installed in the production line of the component mounting system 10, and is provided between the component mounting machine 20 on the most upstream side in the conveyance direction of the substrate S among the plurality of component mounting machines 20 and the printing inspection machine 14. In the present embodiment, basically, the operator supplies the feeder 30 to the feeder storage 60 or collects the feeder 30 from the feeder storage 60. In addition to these devices, the component mounting system 10 may further include a reflow apparatus for performing a reflow process of the substrate S on which the components are mounted.

As shown in fig. 2, the component mounting apparatus 20 includes: a substrate transport device 21 that transports the substrate S along the X direction; a head 22 having a suction nozzle for sucking the component supplied from the feeder 30; a head moving mechanism 23 that moves the head 22 in the XY direction; and an attachment control device 28 (see fig. 5) for controlling the entire device. The mounting control device 28 is configured by a well-known CPU, ROM, RAM, and the like, and outputs drive signals to the substrate transport device 21, the head 22, the head moving mechanism 23, and the like.

As shown in fig. 3, the feeder 30 is a tape feeder that feeds a tape that stores components at a predetermined pitch. The feeder 30 includes: a reel 32 on which the tape is wound; a tape feed mechanism 33 that feeds out the tape from the tape reel 32; a connector 35 having two positioning pins 34; a rail member 37 provided at the lower end; and feeder control device 39 (see fig. 5). The feeder control device 39 is composed of a well-known CPU, ROM, RAM, and the like, and outputs a drive signal to the tape feeding mechanism 33. Feeder control device 39 can communicate with a control unit (installation control device 28, management device 80, or the like) at the installation site of feeder 30 via connector 35.

As shown in fig. 2, the component mounter 20 has two upper and lower sections capable of mounting the feeder 30 in front. The upper section is a supply section 20A in which the feeder 30 can supply components, and the lower section is a storage section 20B in which the feeder 30 can be stored. The supply section 20A and the storage section 20B are provided with feeder stands 40 each formed in an L shape in side view and on which a plurality of feeders 30 are mounted. The feeder base 40 includes: a plurality of slots 42 arranged along the X direction at intervals into which the rail members 37 of the feeder 30 can be inserted; two positioning holes 44 into which the two positioning pins 34 can be inserted; and a connector 45 disposed between the two positioning holes 44 and to which the connector 35 is connected. The component mounting apparatus 20 is not limited to the configuration including the feeder storage section 20B, and may not include the feeder storage section 20B.

As shown in fig. 1, loader 50 is movable along X-axis rails 18 provided parallel to the conveyance direction (X direction) of the substrate on the front surfaces of component mounters 20 and the front surface of feeder stocker 60. In fig. 2, the X-axis rail 18 is not shown. As shown in fig. 4 and 5, the loader 50 includes: a loader moving mechanism 51, a feeder transfer mechanism 53, an encoder 57, left and

right monitoring sensors

58a and 58b, and a loader control device 59.

The loader moving mechanism 51 moves the loader 50 along the X-axis rail 18, and includes an X-axis motor 52a such as a servo motor that drives a drive belt, and a guide roller 52b that guides the movement of the loader 50 along the X-axis rail 18. Feeder transfer means 53 transfers feeder 30 to component mounting apparatus 20 or feeder storage 60. The feeder transfer mechanism 53 includes a clamp 54 for clamping the feeder 30, and a Y-axis slider 55 for moving the clamp 54 in the front-rear direction (Y direction) along a Y-axis rail 55b by driving a Y-axis motor 55 a. The feeder transfer mechanism 53 further includes a Z-axis motor 56a that moves a slide base 56, to which the clamp 54 and the Y-axis slider 55 are slidably attached, in the vertical direction (Z direction) along a Z-axis guide rail 56 b.

The encoder 57 detects the movement position of the loader 50 in the X direction. The

monitoring sensors

58a and 58b are for monitoring the presence or absence of an obstacle (including an operator), and are constituted by, for example, infrared sensors. The monitor sensor 58a is attached to the left side of the loader 50 (the side opposite to the conveyance direction of the substrate S), and mainly detects an obstacle in a monitor area Sa (see fig. 1) on the left side of the loader 50. The monitoring sensor 58b is attached to the right side of the loader 50 (the same side as the substrate S in the conveying direction), and mainly detects an obstacle in a monitoring area Sb (see fig. 1) on the right side of the loader 50. The monitoring regions Sa and Sb are regions in which the front region of the component mounting machine 20 can be monitored by the amount of one right and left adjacent to the component mounting machine 20 when the loader 50 is positioned in front of the component mounting machine 20. The loader control device 59 is constituted by a well-known CPU, ROM, RAM, and the like. The loader control device 59 receives the detection signals from the encoder 57 and the

monitoring sensors

58a and 58b, and outputs drive signals to the loader moving mechanism 51 (X-axis motor 52a) and the feeder transfer mechanism 53 (clamp 54, Y-axis motor 55a, and Z-axis motor 56 a).

When the feeder 30 is automatically replaced, the loader control device 59 controls the X-axis motor 52a to move the loader 50 to a position where the Y-axis slider 55 of the loader 50 faces the slot 42 of the component mounter 20 that performs automatic replacement. When the component mounter 20 performs automatic replacement with the supply section 20A, the loader control device 59 controls the Z-axis motor 56a to move the slide base 56 (Y-axis slider 55) to the upper transfer section 50A facing the supply section 20A. On the other hand, when the loader control device 59 performs automatic replacement with the storage section 20B of the component mounter 20, the Z-axis motor 56a is controlled to move the slide base 56 to the lower transfer section 50B facing the storage section 20B. When the feeder 30 in the loader 50 is mounted on the component mounting apparatus 20, the loader control device 59 controls the Y-axis motor 55a to move the Y-axis slider 55 backward (toward the component mounting apparatus 20) in a state where the feeder 30 is clamped by the clamping portion 54. Thereby, rail member 37 of feeder 30 is inserted into slot 42 of feeder base 40. Next, loader control device 59 unlocks feeder 30 from clamping by clamping unit 54 with respect to feeder 30, and thereby mounts feeder 30 on feeder table 40 of component mounter 20. Further, when detaching feeder 30 from component mounting apparatus 20 and collecting the feeder into loader 50, loader control device 59 controls Y-axis motor 55a to move Y-axis slider 55 backward (toward component mounting apparatus 20). Next, loader control device 59 causes clamping unit 54 to clamp feeder 30 attached to feeder base 40, and then controls Y-axis motor 55a to move Y-axis slider 55 forward (toward loader 50). Thereby, the feeder 30 is removed from the feeder base 40 and collected into the loader 50.

Feeder storage 60 is provided with feeder table 40 having the same configuration as feeder table 40 provided in component mounter 20, in order to store a plurality of feeders 30. Further, feeder table 40 of feeder storage 60 is provided at the same height (Z-direction position) as feeder table 40 of supply section 20A of component mounter 20. Therefore, loader 50 can attach and detach feeder 30 to and from feeder table 40 of feeder storage 60 by the same operation as attaching and detaching feeder 30 to and from feeder table 40 of component mounter 20.

Further, a substrate conveying device 62 for conveying the substrate S in the X direction is provided behind the feeder storage 60. The positions of the substrate transport device 62 in the front-rear direction and the up-down direction are the same as the positions of the substrate transport device, not shown, of the printing inspection machine 14 and the substrate transport device 21 of the adjacent component mounting machine 20. Therefore, the substrate transport device 62 can transport the substrate S received from the substrate transport device of the printing inspection machine 14 and deliver the substrate S to the substrate transport device 21 of the adjacent component mounting machine 20.

As shown in fig. 5, the management device 80 is constituted by a well-known CPU80a, ROM80b, HDD80c, RAM80d, and the like, and includes a display 82 such as an LCD, and an input device 84 such as a keyboard or a mouse. Management device 80 stores a production program of substrate S, feeder management information, and the like. The production process of the substrate S is a process for defining which element is mounted on which substrate S, and for producing several substrates S mounted in this manner. Feeder management information is information related to feeders 30 held by each component mounting machine 20 and feeder storage 60. Fig. 6 is an explanatory diagram showing an example of feeder management information. Feeder management information includes, as shown in the figure, a slot number (position information) of feeder base 40 on which each feeder 30 is mounted, a feeder ID (identification information) of feeder 30 mounted on each slot 42, a component type held by each feeder 30, a component remaining amount, and dimensions indicating width W in the X direction and length L in the Y direction of feeder 30. Further, among feeders 30, there is a feeder occupying not only one slot 42 into which the rail member 37 is inserted but also a plurality of adjacent slots 42 because the width W is wide. As an example, fig. 6 shows a case where feeder 30 having width W2 of slot number 004 occupies

slot numbers

004 and 005, and common feeder ID is registered in

slot numbers

004 and 005, and other information is registered in slot number 004. Of course, the same information as the respective information of the slot number 004 may be registered in the slot number 005.

The management device 80 is communicably connected to the mounting control device 28 by wire and the loader control device 59 by wireless, and is also communicably connected to the control devices of the printing press 12, the printing inspection machine 14, and the mounting inspection machine. Management device 80 receives information on the mounting status of component mounter 20, information on attached/detached feeder 30 from mounting control device 28, or information on the driving status of loader 50 from loader control device 59. When receiving information on feeder 30 mounted on feeder table 40 of component mounter 20 or feeder 30 removed from feeder table 40 from mounting control apparatus 28, management apparatus 80 updates feeder management information of component mounter 20. Further, management device 80 outputs a drive signal to substrate conveyance device 62 of feeder storage 60 to cause substrate conveyance device 62 to convey substrate S. Further, management device 80 is communicably connected to feeder control device 39 of feeder 30 mounted on feeder base 40 of feeder storage 60 via

connectors

35 and 45, and can acquire information of feeder 30. Management device 80 updates feeder management information of feeder storage 60 when acquiring information related to feeder 30 attached to feeder base 40 of feeder storage 60 or feeder 30 detached from feeder base 40.

The operation of the component mounting system 10 configured as described above will be described specifically when the loader 50 automatically replaces the feeder 30. Fig. 7 is a flowchart showing an example of the feeder automatic replacement process. This process is executed by the loader control device 59 of the loader 50. In the feeder automatic replacement process, loader control device 59 waits for receiving an automatic replacement instruction of feeder 30 output from management device 80 (S100). The automatic replacement instruction includes an instruction to detach feeder 30 and the detachment position thereof. Management device 80 also sends an instruction to detach feeder 30, which stores components necessary for the next mounting process, from feeder storage 60 and an instruction to mount detached feeder 30 to supply section 20A of each component mounter 20, based on the production program of substrate S. Further, management device 80 transmits an instruction to detach feeder 30, which stores components unnecessary for the next mounting process, from supply section 20A or to remove feeder 30 having a component remaining amount of 0, and an instruction to mount detached feeder 30 to storage section 20B or feeder storage 60. In addition, the automatic replacement instruction for feeder 30 having a wide width occupying a plurality of slots 42 includes a slot number as a mounting/dismounting position of feeder 30 and an adjacent slot number occupied by feeder 30.

When receiving the automatic replacement instruction in S100, loader control device 59 acquires feeder information to be attached and detached and position information of attached and detached feeder 30 from the received automatic replacement instruction (S105). The position information in S105 includes information on which feeder base 40 of feeder storage 60 or supply section 20A or storage section 20B of component mounter 20 feeder 30 is attached to or detached from, and information on the slot number of the attached/detached position of feeder 30 of each feeder base 40. Next, the loader control device 59 sets the target position of the loader 50 based on the position information of S105 (S110). The target position is a position at which loader 50 can attach and detach feeder 30 at the attachment and detachment position.

Next, the loader control device 59 determines whether or not an obstacle (operator) is detected by the monitoring sensor 58a or the monitoring sensor 58b in the traveling direction based on the target position and the current position of the loader 50 (S115). When it is determined that no obstacle is detected in the traveling direction, the loader control device 59 controls the X-axis motor 52a to move the loader 50 to the target position (S120), and determines whether or not the loader 50 has reached the target position based on the position detected by the encoder 57 (S125). On the other hand, when determining that an obstacle is detected, the loader control device 59 stops the loader 50 (S130), and returns to S115. In this way, the loader control device 59 stops the loader 50 when an obstacle (operator) is detected in the traveling direction of the loader 50, and restarts the movement of the loader 50 when an obstacle is not detected. When it is determined in S125 that loader 50 has reached the target position, loader control device 59 stops loader 50 (S135) and executes the feeder status check process (S140). Feeder status confirmation processing is processing for confirming whether or not there is any feeder 30 or identification information of feeder 30 in slot 42 corresponding to the position information acquired in S105.

Fig. 8 is a flowchart showing an example of feeder status confirmation processing. In the feeder status confirmation process, loader control device 59 first determines whether or not the present automatic replacement instruction includes removal of feeder 30 (S200), and proceeds to S220 if it is determined that removal is not included. When loader control device 59 determines that removal of feeder 30 is included, it requests management device 80 for feeder information of slot 42 at the removal position of this time (S205), and waits for receipt of feeder information from management device 80 (S210). Upon receiving the request from loader control device 59, management device 80 reads out information on the presence or absence of feeder 30 in requested slot 42 and identification information of the requested slot in which feeder 30 is mounted, from feeder management information, and transmits the information to loader control device 59. When feeder information is received from management device 80 in S210, loader control device 59 compares the received feeder information with the feeder information acquired in S105 to check whether or not the feeder information matches (S215), and proceeds to S220. Therefore, loader control device 59 can confirm whether or not the mounting state of feeder 30 in slot 42 when the automatic replacement instruction of feeder 30 is output matches the current mounting state. That is, loader control device 59 can grasp that, although removal of feeder 30 is instructed as an automatic replacement instruction, the worker has removed feeder 30 or has attached another feeder 30 after removal.

Next, loader control device 59 determines whether or not the present automatic replacement instruction includes mounting of feeder 30 to the free slot (S220), and if it is determined that mounting is not included, the feeder status confirmation process is terminated. When it is determined that mounting of feeder 30 is included, loader control device 59 requests management device 80 for feeder information of slot 42 at the present mounting position (S225), and waits for receiving feeder information from management device 80 (S230). Upon receiving a request from loader control device 59, management device 80 reads out information on the presence or absence of feeder 30 in requested slot 42 and identification information of the presence or absence of feeder 30 when feeder 30 is mounted from feeder management information, and transmits the read information to loader control device 59. Further, management device 80 transmits feeder information indicating that no feeder 30 is present in slot 42 as long as no feeder 30 is mounted in the free slot. Upon receiving feeder information from management device 80 in S230, loader control device 59 confirms whether slot 42 at the current mounting position is still free from the received feeder information (S235), and ends the feeder status confirmation process. Accordingly, loader control device 59 can confirm whether or not the empty state of slot 42 is maintained when receiving the instruction to automatically replace feeder 30. That is, loader control device 59 can grasp that the worker has attached feeder 30 to slot 42 even though the attachment of feeder 30 to the free slot has been instructed as an automatic replacement instruction. In the case where feeder 30 is mounted to a wide width, management device 80 transmits to loader control device 59 information including the information of slot 42 that is designated as the mounting/dismounting position and information of adjacent slot 42 that feeder 30 occupies. Therefore, the loader control device 59 checks not only the slot 42 designated as the attachment/detachment position but also the empty state of the adjacent slot 42.

When feeder condition confirmation processing at S140 is executed in this manner, loader control device 59 determines whether or not there is no difference between the current feeder condition of slot 42 at the attachment/detachment position (the mounting condition of feeder 30) and the feeder condition at the time of outputting the automatic replacement instruction (at the time of reception) (S145). The loader control device 59 performs the determination of S145 based on the confirmation results of S215 and S235. If loader control device 59 determines that there is no difference in feeder status, feeder attachment/detachment processing is executed (S150), and the process returns to S100. On the other hand, if loader control device 59 determines that there is a difference in feeder status, it notifies management device 80 of the fact that automatic replacement of feeder 30 is suspended and waiting (S155), and the process returns to S100. That is, loader 50 waits without attaching or detaching feeder 30 until receiving a new instruction from management device 80. This prevents feeder 30 from being replaced when the mounting state of feeder 30 in slot 42 at the attachment/detachment position is different from the mounting state when the automatic replacement instruction is output. Therefore, it is possible to prevent the removal of the feeder 30 of a type different from the automatic replacement instruction, or the installation of the feeder 30 although the feeder 30 has been installed in the instructed free slot. When receiving the notification of S155 when the management device 80 transmits an automatic replacement instruction including the installation of the feeder 30, it determines whether or not the feeder 30 to be installed is already installed. If feeder 30 to be mounted is not mounted, management device 80 transmits a new automatic replacement instruction to loader control device 59, such as specifying another free slot and mounting feeder 30. When receiving the notification of S155 when the management device 80 transmits the automatic replacement instruction including the removal of the feeder 30, it determines whether or not the feeder 30 to be removed has been removed. Further, if feeder 30 to be removed is not removed, management device 80 transmits a new automatic replacement instruction to loader control device 59, which designates current slot 42 of feeder 30 and removes feeder 30.

Here, the correspondence relationship between the components of the present embodiment and the components of the present invention is clarified. Feeder 30 of the present embodiment corresponds to a component supply unit, component mounting machine 20 corresponds to a component mounting machine, component mounting system 10 corresponds to a component mounting system, loader 50 corresponds to a unit replacement device, HDD80c of management device 80 corresponds to an information storage unit, CPU80a of management device 80 corresponds to an instruction output unit, and loader control device 59 that executes the processing of S140 and S145 of the feeder automatic replacement processing in fig. 7 (feeder status confirmation processing in fig. 8) corresponds to a status confirmation unit. The

monitoring sensors

58a and 58b correspond to sensors.

In component mounting system 10 described above, loader control device 59 confirms whether or not there is a difference between the mounting state of feeder 30 in slot 42 at the mounting/dismounting position and the mounting state at the time of outputting the automatic replacement instruction during the period from when the automatic replacement instruction is received to when mounting/dismounting of feeder 30 is started. This makes it possible to grasp that automatic replacement cannot be performed in accordance with the instruction due to attachment/detachment of feeder 30 by the operator after the instruction for automatic replacement.

In addition, in component mounting system 10, loader control device 59 confirms the mounting state of feeder 30 at the timing when movement of loader 50 to the target position is completed. Therefore, by quickly attaching and detaching feeder 30 after confirmation, it is possible to prevent automatic replacement from being performed in a manner different from the instruction.

In addition, when confirming that there is a difference in the mounting state of feeders 30, loader 50 waits without performing automatic replacement until the automatic replacement instruction is output again from management device 80. Therefore, the loader 50 can reliably prevent the automatic replacement from being performed differently from the instruction, and can perform the appropriate automatic replacement by the new automatic replacement instruction.

It is to be understood that the present invention is not limited to the above-described embodiments, and various forms can be implemented as long as the present invention falls within the technical scope of the present invention.

For example, in the above-described embodiment, the feeder condition confirmation process is performed when the loader 50 reaches the target position, but the present invention is not limited to this, and the feeder condition confirmation process may be performed during movement of the loader 50 before reaching the target position. Fig. 9 is a flowchart showing an automatic feeder replacement process according to a modification. In the modification, the same processing as in the flowchart of fig. 7 is denoted by the same step number, and detailed description thereof is omitted. In the modification, the loader control device 59 determines whether the target position enters the monitoring area of either the monitoring sensor 58a or the monitoring sensor 58b during the movement of the loader 50 (S121), and determines whether the confirmed flag has a value of 0 (S122). In S121, if the traveling direction of the loader 50 is the left side, the loader control device 59 determines whether the target position enters the monitoring area Sa of the monitoring sensor 58a, and if the traveling direction of the loader 50 is the right side, the loader control device 59 determines whether the target position enters the monitoring area Sb of the monitoring sensor 58 b. As described above, the monitoring regions Sa and Sb are regions in which the front region of the component mounting machine 20 can be monitored for one right and left loader 50. Therefore, the state where loader control device 59 determines in S115 that there is no obstacle and determines in S121 that the target position has entered monitoring areas Sa and Sb is a state where no operator is present in front of component mounting machine 20 including the mounting/dismounting position of feeder 30 and no work such as mounting/dismounting feeder 30 is performed. When the loader control unit 59 determines that the target position is not within the surveillance area or that the target position is within the surveillance area but the confirmed flag has a value of 1, the process proceeds to S125.

On the other hand, if loader control device 59 determines that the target position is within the surveillance area and the confirmed flag is 0, it executes the feeder status confirmation process (S140a), and determines whether there is no difference between the current feeder status in slot 42 to be attached and detached and the status at the time when the automatic replacement instruction is output (S145 a). S140a and S145a are performed in the same manner as S140 (fig. 8) and S145 of the embodiment. If it is determined in S145a that there is no difference in the assembly condition, the loader control device 59 sets the confirmed flag to 1(S123), and proceeds to S125. On the other hand, if it is determined in S145a that there is a difference in the assembly conditions, the loader control device 59 transmits a confirmation request for confirming whether or not to continue the automatic replacement to the management device 80 because of the difference in the assembly conditions (S124), and the process proceeds to S125. Management device 80 checks the status of feeder base 40 and issues a new automatic replacement instruction to loader control device 59. When a new automatic replacement instruction is received, loader control device 59 executes the feeder status confirmation process of S140a based on the instruction, and if no problem is confirmed, sets the confirmed flag to 1 in S123.

When it is determined in S125 and S135 that the loader 50 has reached the target position and stopped the loader 50, the loader control device 59 determines whether or not the confirmed flag has a value of 1 (S137). When determining that the confirmed flag has a value of 1, loader control device 59 skips processing at S140 and S145, executes feeder attachment/detachment processing at S150, and returns the confirmed flag to a value of 0 (S151). As described above, in the modification, the feeder condition confirmation process is executed in parallel in advance during the movement of loader 50, and thus the feeder attachment/detachment process can be executed immediately when loader 50 reaches the target position. Therefore, as compared with the case where the feeder status confirmation process is executed after loader 50 reaches the target position, no waiting time for the feeder status confirmation process occurs, and therefore, the automatic replacement process of feeder 30 can be performed quickly.

When it is determined in S115 and S130 that there is an obstacle in the traveling direction and the loader 50 is stopped, the loader control device 59 determines whether or not the confirmed flag has a value of 1(S131), and returns to S115 if the confirmed flag has a value of 0 instead of 1. On the other hand, when the loader control device 59 determines that the confirmed flag has the value 1, the loader control device returns to S115 after setting the confirmed flag to the value 0 (S132). Thus, even if the confirmed flag is once set to the value 1 in S124, the loader control device 59 can return the confirmed flag to the value 0 when an obstacle is detected in the monitored area. Therefore, for example, after confirming that the feeder status match indication in S140a and S145a, if it is detected that an operator has entered the monitored area, the confirmed flag is returned to 0, and the feeder status confirmation process is executed again. This is because, in some cases, an operator who enters the surveillance area may be unauthorized to attach or detach feeder 30 of feeder base 40, and the state of the feeder of slot 42 to be attached or detached may not be compliant with the instruction. Thus, if the confirmed flag is maintained at a value of 1, after the feeder status confirmation process is executed, the operator does not enter the monitoring area and the feeder status of slot 42 remains as the automatic replacement instruction. Therefore, if the confirmed flag is set to 1 when loader 50 is stopped in S135, feeder attachment/detachment processing in S150 is immediately executed without executing the feeder status confirmation processing again.

In the above embodiment and modification, the case where the feeder status confirmation process is executed at a predetermined timing such as a timing when the loader 50 reaches the target position or a timing when the target position enters the monitoring area has been exemplified, but the present invention is not limited to this. For example, the feeder status confirmation process may be repeated while loader 50 is moving. Fig. 10 is a flowchart showing an automatic feeder replacement process according to a modification. In the modification, loader control device 59 determines whether or not a predetermined time has elapsed since the execution of the previous feeder status confirmation process while loader 50 is moving (S121a), and proceeds to S125 when it is determined that the predetermined time has not elapsed. Further, if the feeder status confirmation process has not been executed once from the start of the movement, loader control device 59 determines in S121a whether or not a predetermined time has elapsed from the start of the movement. On the other hand, when loader control device 59 determines that the predetermined time has elapsed since the execution of the previous feeder status confirmation process, it executes the feeder status confirmation process (S140a) and determines whether there is no difference in the feeder status (S145 a). If it is determined in S145a that there is no difference in feeder status, loader control device 59 proceeds to S125, and if it is determined in S145a that there is a difference in feeder status, it proceeds to S125 after transmitting a confirmation request to management device 80 in S124.

When it is determined in S125 and S135 that loader 50 has reached the target position and loader 50 has stopped, loader control device 59 determines in S145 that there is no difference in feeder status based on the latest feeder status confirmation process that is the feeder status confirmation process executed before stopping among the feeder status confirmation processes repeated during movement, and executes the feeder attachment/detachment process in S150. In this way, in the modification, loader control device 59 executes the feeder status confirmation process every predetermined time, and therefore, it is possible to quickly detect that the feeder status of slot 42 at the attachment/detachment position is different from that at the time of receiving the automatic replacement instruction, and quickly respond to the situation, and therefore, it is possible to more efficiently perform the appropriate feeder automatic replacement operation. In this modification, the feeder condition confirmation process is repeated every predetermined time while the loader 50 is moving, but the feeder condition confirmation process is not limited to this, and may be repeated every predetermined distance while the loader 50 is moving. In this case, loader control device 59 may perform the feeder condition confirmation process each time it is detected that loader 50 has moved by a predetermined distance.

In the above-described embodiment, loader control device 59 executes the feeder status confirmation process via communication with management device 80, but is not limited thereto. For example, the loader control device 59 may execute the feeder status confirmation process via communication with the mounting control device 28 of each component mounter 20. In this case, feeder management information of each component mounter 20 is not limited to being managed by management apparatus 80, and may be managed by each mounting control apparatus 28 of each component mounter 20.

In the above-described embodiment, loader control device 59 executes the feeder status confirmation process, but the present invention is not limited to this, and management device 80 or mounting control device 28 of each component mounting machine 20 may execute the feeder status confirmation process. In such a case, loader control device 59 may acquire the processing result of feeder status confirmation processing from management device 80 or mounting control device 28 of each component mounting machine 20, and determine whether or not to execute feeder attachment/detachment processing or the like. Further, management device 80 or mounting control device 28 of each component mounting machine 20 may be configured to execute feeder status confirmation processing at the timing when loader 50 reaches the target position. Alternatively, management apparatus 80 or mounting control apparatus 28 of each component mounting apparatus 20 may be configured to repeat the feeder status confirmation process during movement of loader 50. For example, as in the above-described modification, the feeder status confirmation process may be repeatedly executed at predetermined time intervals, or may be executed each time feeder 30 is attached to and detached from feeder base 40.

In the component mounting system according to the present disclosure, the status confirmation unit may perform the status confirmation process at a timing when the unit replacement device moves to a predetermined position where the component supply unit can be attached and detached at the attachment and detachment position. By performing the status confirmation processing at the predetermined position, automatic replacement other than the instruction can be prevented more reliably.

In the component mounting system according to the present disclosure, the status confirmation unit may perform the status confirmation process at a timing during movement of the unit replacement device to a predetermined position where the component supply unit can be attached and detached at the attachment and detachment position. Thus, it is possible to appropriately perform automatic replacement while suppressing the occurrence of a waiting time for performing the status confirmation process at a predetermined position.

In the component mounting system of the present disclosure, the unit replacement device may include a sensor that detects presence or absence of an obstacle within a predetermined range, and the situation confirmation unit may perform the situation confirmation process at a timing when the predetermined position is included within the predetermined range of the sensor and the sensor does not detect the obstacle during movement of the unit replacement device. In this way, the situation confirmation processing can be performed at a timing when no operator is present near the predetermined position. Further, since it is possible to grasp that the component supply unit is attached and detached by the operator because the operator has entered the predetermined range after the timing, it is possible to more reliably prevent automatic replacement from being performed in accordance with the instruction.

In the component mounting system according to the present disclosure, the situation confirmation unit may repeat the situation confirmation process at predetermined time intervals or at predetermined distance intervals during the movement of the unit replacement device. In this way, during the movement to the predetermined position, it is possible to quickly grasp that the automatic replacement is not performed according to the instruction, and therefore it is possible to quickly respond to the instruction.

In the component mounting system of the present disclosure, the unit replacement device may be configured to stop the component supply unit from being attached and detached before the automatic replacement instruction is output again from the instruction output unit when it is confirmed by the condition confirmation process that there is a difference in the mounting condition of the component supply unit at the attachment and detachment position. In this way, it is possible to reliably prevent automatic replacement from being performed in a manner different from the instruction, and to perform appropriate automatic replacement by a new automatic replacement instruction.

Usefulness in industry

The present invention can be used in the manufacturing industry of component mounting systems and the like.

Description of the reference numerals

10 parts mounting system, 12 printer, 14 printing inspection machine, 18X axis rail, 20 parts mounter, 20A supply section, 20B storage section, 21 substrate transport device, 22 head, 23 head moving mechanism, 28 mounting control device, 30 feeder, 32 tape reel, 33 tape feeding mechanism, 34 positioning pin, 35 connector, 37 rail member, 39 feeder control device, 40 feeder table, 42 slot, 44 positioning hole, 45 connector, 50 loader, 50A upper transfer section, 50B lower transfer section, 51 loader moving mechanism, 52a X axis motor, 52B guide roller, 53 feeder transfer mechanism, 54 clamp, 55Y axis slide, 55a Y axis motor, 55B Y axis guide rail, 56 slide base, 56a Z axis motor, 56B Z axis guide rail, 57 encoder, 58a, 58B monitoring sensor, 59 loader control device, 60 feeder storage, 62 substrate transport device, 80 management device, 80a CPU, 80b ROM, 80c HDD, 80d RAM, 82 display, 84 input device, S substrate, Sa, Sb monitoring area.

Claims

1. A component mounting system including a plurality of component mounting machines each having a plurality of component supply units for detachably mounting components, the component mounting system comprising:

a unit exchanging device which moves along the arrangement direction of the plurality of component mounting machines and automatically exchanges the component supply unit between the unit exchanging device and the component mounting machines;

an information storage unit that stores unit information including position information of a plurality of mounting positions at which the component supply unit is mounted in the component mounting machine and identification information of the component supply unit at each mounting position;

an instruction output unit that outputs an automatic replacement instruction to the unit replacement device, the automatic replacement instruction including a designation of a mounting/dismounting position of the component supply unit to be automatically replaced among the plurality of assembly positions; and

and a situation confirmation unit that performs a situation confirmation process of confirming, based on the unit information, whether or not there is a difference between the mounting situation of the component supply unit at the mounting/dismounting position and the mounting situation at the time of outputting the automatic replacement instruction, during a period from when the automatic replacement instruction is output to when the unit replacement device moves and mounting of the component supply unit at the mounting/dismounting position is started.

2. The component mounting system according to claim 1,

the situation confirmation unit performs the situation confirmation process at a timing when the unit replacement device moves to a predetermined position where the component supply unit can be attached and detached at the attachment and detachment position.

3. The component mounting system according to claim 1,

the situation confirmation unit performs the situation confirmation process at a timing when the unit replacement device is moving to a predetermined position where the component supply unit can be attached and detached at the attachment and detachment position.

4. The component mounting system according to claim 3,

the unit replacement device has a sensor for sensing the presence or absence of an obstacle within a predetermined range,

the situation confirmation unit performs the situation confirmation process at a timing when the predetermined position is included in the predetermined range of the sensor and the sensor does not detect an obstacle during movement of the unit replacement device.

5. The component mounting system according to claim 3,

the situation confirmation unit repeats the situation confirmation process at predetermined time intervals or at predetermined distance intervals during the movement of the unit replacement device.

6. The component mounting system according to any one of claims 1 to 5,

in a case where it is confirmed by the situation confirmation process that there is a difference in the mounting situation of the component supply unit at the mounting and dismounting position, the unit replacement device suspends mounting and dismounting of the component supply unit until the automatic replacement instruction is output again from the instruction output portion.