JP7496530B2 - Component mounting system, replenishment component confirmation device, and replenishment component confirmation method - Google Patents

Description

The present invention relates to a parts mounting system, a parts supply confirmation device, and a parts supply confirmation method for confirming whether parts supplied to a parts supply unit are appropriate.

The component mounting device mounts components supplied from a component supply unit onto a board to manufacture a mounted board. When the number of components held by the component supply unit becomes low during the process of continuing component mounting, the component supply unit is replenished with components. Meanwhile, generic components that are generically mounted on multiple types of boards may be supplied by multiple component manufacturers and have nearly the same shape and electrical characteristics. A mounted board manufacturing factory may purchase and store the same type of generic components from multiple component manufacturers, and use them to manufacture mounted boards by switching between them as appropriate depending on the number of components in stock (see, for example, Patent Document 1).

Patent document 1 describes how, by preparing information in advance that associates each part with the name of a replaceable part, and automatically changing the part name in the mounting program based on the number of parts used and the number in stock, it is possible to easily change to an alternative part when replenishing parts in a part supply unit.

JP 2007-311546 A

However, even if parts have the same shape and electrical characteristics, there are parts with different guaranteed accuracy (tolerance) of the electrical characteristics. Therefore, parts that can withstand low accuracy of electrical characteristics can be replaced with alternative parts with high accuracy if the electrical characteristics are the same, but conversely, parts that require high accuracy may not be replaced with alternative parts with low accuracy. For example, in the case of two resistors that have the same resistance but different resistance accuracy (resistance tolerance), a resistor with low accuracy of resistance value may be replaced with a resistor with high accuracy of resistance value, but the reverse may not be possible. However, in conventional technologies including Patent Document 1, parts specified in the information on replaceable parts are mutually replaced. Therefore, there is room for further improvement in order to enable replacement of parts corresponding to complex conditions as described above and to enable confirmation of the suitability of refill parts during part refill work.

The present invention aims to provide a component mounting system, a replenished parts confirmation device, and a replenished parts confirmation method that can confirm whether the parts being replenished to a component supply unit are appropriate.

The component mounting system of the present invention is a component mounting system that removes components set in a component supply unit and mounts them on component mounting positions on a board, and includes a storage unit that stores first alternative component information in which mutually replaceable components are registered as an alternative component group, and second alternative component information in which replaceable components for each component are registered, a component mounting unit that removes components from the component supply unit and mounts them on the component mounting positions, a replenishment component information acquisition unit that acquires information on components to be replenished to the component supply unit, and a replenishment component confirmation unit that outputs an output to permit replenishment if the component identified by the information acquired by the replenishment component information acquisition unit is the same as a part being supplied from the component supply unit (hereinafter, the current part) or a designated part designated as a part to be supplied by the component supply unit, or if the part is registered in the second alternative component information of the designated part, or if the second alternative component information does not exist and the part is registered in the alternative component group to which the current part or the designated part belongs, and outputs an output to prohibit replenishment if neither of the above cases apply.

The replenishment part confirmation device of the present invention is a replenishment part confirmation device that confirms parts to be replenished to a component supply unit of a component mounting device that removes parts set in a component supply unit and mounts them at component mounting positions on a board, and includes a first information acquisition unit that acquires from a storage unit first substitute part information in which mutually replaceable parts are registered as a substitute part group, and second substitute part information in which replaceable parts for each part are registered, a replenishment part information acquisition unit that acquires information on parts to be replenished to the component supply unit, and a replenishment part confirmation unit that outputs an indication that replenishment is permitted if the part identified by the information acquired by the replenishment part information acquisition unit is the same as the current part or a designated part designated as a part to be supplied by the component supply unit, or if the part is registered in the second substitute part information of the designated part, or if the second substitute part information does not exist and the part is registered in the substitute part group to which the current part or the designated part belongs, and outputs an indication that replenishment is prohibited if neither of the above cases apply.

The replenishment part confirmation method of the present invention is a replenishment part confirmation method for confirming parts to be replenished to a component supply unit of a component mounting device that removes parts set in the component supply unit and mounts them at component mounting positions on a board, and obtains from a storage unit first substitute part information in which mutually replaceable parts are registered as a substitute part group, and second substitute part information in which replaceable parts for each part are registered, obtains information on parts to be replenished to the component supply unit, and outputs a message to permit replenishment if the replenishment part is the same as the current part or a designated part designated as a part to be supplied by the component supply unit, or if the second substitute part information does not exist and the part is registered in the substitute part group to which the current part or the designated part belongs, and outputs a message to prohibit replenishment if neither of the above cases apply.

The present invention makes it possible to check whether the parts being replenished to the parts supply unit are appropriate.

FIG. 1 is a configuration explanatory diagram of a component mounting system according to an embodiment of the present invention; FIG. 1 is a configuration explanatory diagram of a component mounting device according to an embodiment of the present invention; FIG. 1 is a block diagram showing a configuration of a component mounting system according to an embodiment of the present invention. FIG. 1A is a diagram showing an example of component mounting information used in a component mounting system according to an embodiment of the present invention; FIG. 1B is a diagram showing an example of alternative component group information; and FIG. FIG. 1 is a diagram showing an example of supply position information used in a component mounting system according to an embodiment of the present invention. FIG. 1 is a diagram showing an example of a board on which components are mounted by a component mounting device according to an embodiment of the present invention; FIG. 2 is an explanatory diagram of component mounting by a component mounting device according to an embodiment of the present invention; FIG. 2 is a flow diagram of a method for checking replacement parts according to an embodiment of the present invention.

An embodiment of the present invention will be described in detail below with reference to the drawings. The configurations, shapes, etc. described below are examples for explanatory purposes and can be modified as appropriate depending on the specifications of the component mounting system, component mounting device, and information management device. In the following, the same reference numerals are used for corresponding elements in all drawings, and duplicated explanations will be omitted. In FIG. 2 and in some parts described below, the X-axis in the board transport direction (left-right direction in FIG. 2) and the Y-axis perpendicular to the board transport direction are shown as two axes that are mutually perpendicular in the horizontal plane.

First, the configuration of component mounting system 1 will be described with reference to FIG. 1. Component mounting system 1 has the function of mounting components on a board to produce a mounted board. Component mounting system 1 is configured by connecting multiple component mounting devices W1-W3. Component mounting devices W1-W3 are connected to information management device 3 via communication network 2. Information management device 3 manages the production of mounted boards by component mounting system 1, and also supports the task of replenishing components to the component supply units mounted on component mounting devices W1-W3. Note that the number of component mounting devices W1-W3 provided in component mounting system 1 is not limited to three, and may be one, two, four or more.

In FIG. 1, the component mounting system 1 includes a reader T used by an operator. The reader T includes a terminal communication unit Ta that wirelessly communicates with a management wireless communication unit 3a included in the information management device 3 to send and receive information, a reading unit Tb that reads information recorded on a tag attached to a reel or the like that winds and stores a carrier tape that stores components, and a touch panel Tc with display and input functions. If the tag attached to the reel or the like is an identifier that represents component information, such as a barcode or two-dimensional code, the reading unit Tb optically reads the identifier. Also, if the tag is a memory element capable of wireless communication, such as an RFID tag, the reading unit Tb reads component information from the memory element. In this way, the reader T optically reads an identifier that represents component information, or reads component information from a memory element capable of wireless communication.

When a worker performs a part replenishing operation to replenish parts in a part supply unit (tape feeder, tray feeder, stick feeder, etc.), he or she performs a part matching operation by using a reader T to read tags attached to reels, trays, sticks, etc. that store the parts. The reader T reads the information stored in the tag with a reading unit Tb, recognizes the part number that identifies the stored part, and transmits it to the information management device 3 or the part mounting device via the terminal communication unit Ta. The reader T also receives various information transmitted from the information management device 3 or the part mounting device, processes it for display, and displays it on the touch panel Tc.

Next, the configuration of component mounting devices W1 to W3 will be described with reference to Figure 2. Component mounting devices W1 to W3 have the same configuration, and component mounting device W1 will be described here. In component mounting device W1, a board transport unit 5 is installed along the X-axis in the center of base 4. Board transport unit 5 transports board P carried in from upstream along the X-axis, and positions and holds it at a mounting position by the mounting head, which will be described below. Board transport unit 5 also transports board P downstream after component mounting work has been completed. Component supply units 6 are installed on both sides of board transport unit 5 (front and rear directions of the Y-axis).

A tape feeder 7 is attached to each of a plurality of component supply positions provided along the X-axis in each component supply unit 6. The tape feeder 7 feeds a carrier tape, on which pockets for storing components are formed, in a pitch direction from outside the component supply unit 6 toward the board transport unit 5 (tape feed direction) to supply components to a component removal position where the mounting head picks up the components. An operation button 7a and a lamp 7b are provided on the top surface of the tape feeder 7 at a position where the operator can operate the tape feeder 7 when the tape feeder 7 is attached to the component supply unit 6. The operation button 7a is operated by the operator for component replenishment work such as replenishing the tape feeder 7 with components. The lamp 7b displays information such as a replenishment request, permission for component replenishment, and refusal to replenish components by changing color or flashing.

The component supply positions provided in the component supply unit 6 are also equipped with tray feeders that supply components placed on a tray, and stick feeders that supply components aligned and held on hollow sticks. The tape feeder 7, tray feeder, and stick feeder installed in the component supply unit 6 are component supply units that supply components to the mounting head.

When a component supply unit is attached to the component supply section 6, the unit control section of each component supply unit is electrically connected to the component mounting device control section 30 (see FIG. 3) of the component mounting device W1. Each component supply unit is assigned a unique component supply unit number. The component mounting device control section 30 communicates with the unit control section to recognize which component supply position in the component supply section 6 has a component supply unit with which component supply unit number.

In FIG. 2, a Y-axis table 8 equipped with a linear drive mechanism is disposed at both ends of the X-axis on the top surface of the base 4. A beam 9 similarly equipped with a linear mechanism is connected to the Y-axis table 8 so as to be freely movable along the Y-axis. A mounting head 10 is attached to the beam 9 so as to be freely movable along the X-axis. The mounting head 10 is equipped with multiple suction units (not shown) that can hold components and move up and down and rotate around a vertical axis (Z-axis). A suction nozzle (not shown) that suctions and holds the components is attached to the bottom end of each suction unit.

The Y-axis table 8 and beam 9 constitute an XY unit 11 that moves the mounting head 10 along the X-axis and Y-axis. The XY unit 11 and mounting head 10 constitute a component mounting mechanism that performs a component mounting operation of picking up components from the component supply section 6 and mounting them at the component mounting positions on the board P. In the component mounting operation, the mounting head 10 moves above the component supply section 6, picks up specific components with each suction nozzle, moves above the board P, rotates the components held by each suction nozzle in a specific direction, and repeats a series of turns to mount the components at their respective component mounting positions.

In FIG. 2, the beam 9 is equipped with a board recognition camera 12 that is located on the underside of the beam 9 and moves integrally with the mounting head 10. As the mounting head 10 moves, the board recognition camera 12 moves above the board P positioned at the mounting operation position of the board transport section 5, and captures an image of a board mark (not shown) provided on the board P to recognize the position of the board P.

A component recognition camera 13 is installed between the component supply unit 6 and the board transport unit 5. When the mounting head 10, which has removed a component from the component supply unit 6, is positioned above the component recognition camera 13, the component recognition camera 13 captures an image of the component held by the suction nozzle from below. When the mounting head 10 mounts the component on the board P, the component mounting position is corrected taking into account the recognition results of the board P by the board recognition camera 12 and the recognition results of the component by the component recognition camera 13.

In FIG. 2, a touch panel 14 operated by the worker is installed in front of the component mounting device W1 at the position where the worker works. The touch panel 14 displays various information on its display, and the worker inputs data and operates the component mounting device W1 using buttons and other buttons displayed on the display.

Next, the configuration of the component mounting system 1 will be described with reference to FIG. 3. The information management device 3 includes a management memory unit 21, a component replenishing work support unit 26, and a management wireless communication unit 3a. The management memory unit 21 (memory unit) is a storage device, and stores component mounting information 22, supply position information 23, component information 24, alternative component group information 25, and the like. The component replenishing work support unit 26 includes, as internal processing units, an information acquisition unit 26a, a reader read information acquisition unit 26b, and a replenishing component confirmation unit 26c. Note that the information management device 3 does not need to be configured as a single computer, and may be configured as multiple devices. For example, all or part of the storage device may be provided in the cloud via a server.

The component mounting information 22 stores information necessary for component mounting work, such as the names of components to be mounted on the board P and the component mounting positions for each type of mounted board produced in the component mounting system 1. The supply position information 23 includes information identifying the component supply unit (tape feeder 7) mounted for each component supply position provided in the component supply section 6 of the component mounting devices W1 to W3, and information identifying the components supplied from the component supply unit. The component information 24 includes the size and electrical characteristics of the component for each component mounted on the board P. The alternative component group information 25 stores information regarding alternative component groups in which mutually interchangeable parts are registered.

Here, the details of the component mounting information 22 will be described with reference to Figs. 4(a) and 6. Fig. 6 shows the board P on which components are mounted based on the component mounting information 22 shown in Fig. 4(a). The component mounting information 22 includes a component mounting position 40, a component mounting coordinate 41, a component name 42, and mounting component restriction information 43. The component mounting position 40 is information that specifies the mounting position of the component on the board P. The component mounting coordinate 41 is information that includes the mounting coordinate (XY coordinate) of the component and the mounting angle (angle θ with the Z axis as the rotation axis). The component name 42 is information that specifies the component to be mounted at the component mounting position 40. In the component mounting information 22 shown in Fig. 4(a), the component name 42 is specified as the name of a regular component. A regular component is a component that is set before the start of production of the mounted board.

In Figures 4(a) and 6, components are mounted on ten component mounting positions 40, "M01" to "M10", on the board P. A component with a component name 42 of "A" is mounted on the component mounting position 40 "M01". Hereinafter, the component mounting position with the component mounting position 40 "M01" will be referred to simply as "component mounting position M01". Also, a component with a component name 42 of "A" will be referred to simply as "component A". The same applies to the other component mounting positions 40 and component names 42. That is, component B is mounted on component mounting positions M02 to M05, and component C is mounted on component mounting positions M06 to M10.

In FIG. 4(a), the mounting component restriction information 43 is information that specifies (restricts) the components (component names 42) that can be mounted at the component mounting positions 40. At the component mounting positions 40 where the component names 42 are registered in the mounting component restriction information 43, only the components with the registered component names 42 can be mounted. For example, "A" is registered in the mounting component restriction information 43 for the component mounting position M01, and only component A, which is a regular component, can be mounted. Also, "B" is registered in the mounting component restriction information 43 for the component mounting position M05, and only component B, which is a regular component, can be mounted. Note that for component mounting positions 40 where the mounting component restriction information 43 is blank, the component mounting information 22 does not restrict the components that can be mounted, and other parts can be substituted.

Next, the details of the alternative parts group information 25 will be described with reference to FIG. 4(b). The alternative parts group information 25 includes a group number 44 that identifies an alternative parts group, and an alternative parts group 45. In the example shown in FIG. 4(b), parts A and B are registered as mutually interchangeable alternative parts in the alternative parts group 45 with group number 44 "GR001". In other words, part A can be substituted for part B, and part B can also be substituted for part A, which is a two-way substitution condition. In this way, the alternative parts group information 25 is the first alternative parts information in which mutually interchangeable parts are registered as the alternative parts group 45.

Next, the part information 24 will be described in detail with reference to FIG. 4(c). The part information 24 includes part name 42, part size 46, and replaceable part 47. Part size 46 includes information about the size of the part, such as length L, width W, and height H. Replaceable part 47 is information that specifies a part (part name 42) that can be replaced by that part. A part registered in replaceable part 47 (lower part) can be replaced by the registered part (higher part).

For example, part C (a lower-level part) with part name 42 "C" has "A" and "B" registered as replaceable parts 47, and can be substituted for part A or part B (a higher-level part). Also, parts A and B have blank replaceable parts 47, and there are no higher-level parts. In other words, the relationship between part C and parts A or B is a one-way substitution condition, in which a lower-level part can be substituted for a higher-level part, but a higher-level part cannot be substituted for a lower-level part.

In other words, a one-way substitution condition is one in which the upper and lower components have the same size and electrode positions, but different operating conditions and tolerances such as operating temperature range, resistance tolerance, and capacitance tolerance, so one (the upper component) can be substituted for the other (the lower component), but the reverse is not permitted. For example, if there are upper and lower components with the same nominal resistance, the lower component with a resistance tolerance of ±20% can be substituted for the upper component with a resistance tolerance of ±1%, but the reverse is not permitted.

In this way, part information 24 is second substitute part information that registers replaceable parts 47 (substitute parts) for each part (part name 42). If part A (higher-level part) can be used as a substitute for part C (lower-level part), but part C (lower-level part) cannot be used as a substitute for part A (higher-level part), the second substitute part information (replaceable parts 47 in part information 24) for part C (lower-level part) includes part A (higher-level part). Also, there is no second substitute part information for part A (higher-level part). Alternatively, second substitute part information that does not include part C (lower-level part) is registered. In the example of FIG. 4(c), the second substitute part information for part A is left blank.

Next, the supply position information 23 will be described in detail with reference to FIG. 5. The supply position information 23 includes a component supply position 50 set in the component supply section 6, a component supply unit 51, a designated component 52, a supply component 53, and supply component restriction information 54. The component supply unit 51 is information that identifies the component supply unit (tape feeder 7, tray feeder, stick feeder, etc.) that is installed at the component supply position 50.

The designated component 52 and the supplied component 53 are information that identifies the component (component name 42) to be supplied from the component supply unit of the component supply position 50. The designated component 52 is the component name 42 of the component that is designated as the component to be supplied by the component supply unit of the component supply position 50 at the start of production of the mounted board. The supplied component 53 is the component name 42 of the component currently being supplied (current component) from the component supply unit of the component supply position 50. When a component to be supplied is replaced by a component replenishment operation, the designated component 52 is not updated, and only the component name 42 of the supplied component 53 is updated. The supplied component restriction information 54 is information that restricts the replacement of the part (component name 42) to be replenished by the component supply unit of the component supply position 50.

In FIG. 5, the component supply units 51 of "TP01" and "TP02" are attached to the component supply positions 50 of "FP01" and "FP02". The component supply units 51 of "TP01" and "TP02" supply component A as a supply component 53. Hereinafter, the component supply position 50 of "FP01" will be simply referred to as the "component supply position FP01". The component supply unit 51 of "TP01" will be simply referred to as the "component supply unit TP01". The same applies to the other component supply positions 50 and component supply units 51. That is, component B is supplied from the component supply units TP03 to TP05 of the component supply positions FP03 to FP05, and component C is supplied from the component supply units TP06 to TP08 of the component supply positions FP06 to FP06.

"A" is registered as the supply part restriction information 54 at the part supply position FP01. Also, "B" is registered as the supply part restriction information 54 at the part supply position FP05. That is, the parts that can be replenished to the part supply unit TP01 at the part supply position FP01 are limited to part A, which is the same as the designated part 52. Also, the parts that can be replenished to the part supply unit TP05 at the part supply position FP05 are limited to part B, which is the same as the designated part 52. That is, the supply part restriction information 54 is also part substitution prohibition information that prohibits the substitution of parts. Note that the part supply unit at the part supply position 50 where the supply part restriction information 54 is blank is permitted to replenish only parts that are specified as the supply part 52 (current part) or the designated part 52, or parts that are permitted to be substituted in the substitute part group information 25 or the replaceable part 47 of the part information 24.

In FIG. 3, the information acquisition unit 26a (first information acquisition unit) acquires, from the management storage unit 21 (storage unit), first alternative part information (alternative part group information 25) in which mutually replaceable parts are registered as an alternative part group 45, and second alternative part information (part information 24) in which replaceable parts (replaceable parts 47) for each part (part name 42) are registered. The information acquisition unit 26a also acquires from the management storage unit 21 supply part restriction information 54 that restricts the substitution of parts to be replenished to the part supply unit 51 included in the supply position information 23.

The reader read information acquisition unit 26b acquires, via the management wireless communication unit 3a, information on parts that the reader T reads from tags attached to reels or the like that store parts during a part matching operation performed during part replenishing work. In other words, the reader T, the management wireless communication unit 3a, and the reader read information acquisition unit 26b constitute a replenishing part information acquisition unit that acquires information on parts to be replenished in the part supply unit (such as the tape feeder 7).

In FIG. 3, the replenishment part confirmation unit 26c judges whether a part (hereinafter referred to as a "replenishment part") requested to be replenished by a part supply unit (hereinafter referred to as a "replenishment target part supply unit") can be replenished during a part replenishment task in which a worker replenishes parts to a part supply unit (such as a tape feeder 7). In other words, the replenishment part is a part identified by information acquired by the replenishment part information acquisition unit (reader T, management wireless communication unit 3a, reader read information acquisition unit 26b).

During part resupply work, when an operator operates the operation button 7a of the tape feeder 7 of the part to be replenished, the part supply position 50 of the part supply unit to be replenished (hereinafter referred to as the "part supply position to be replenished") is transmitted to the information management device 3 via the part mounting device control unit 30. In addition, when the operator uses the reader T to read the tag attached to the reel that stores the replenished part, the part name of the replenished part transmitted from the reader T is acquired by the reader read information acquisition unit 26b.

In FIG. 3, the replenishment part confirmation unit 26c determines whether to permit or prohibit the replenishment of replenishment parts to the replenishment part supply unit based on the part mounting information 22, supply position information 23, part information 24, and alternative part group information 25 stored in the management memory unit 21, and the acquired replenishment target part supply position and part name of the replenishment part.

Specifically, the replenishment part confirmation unit 26c allows part replenishment if the replenishment part is the same as the supply part 53 (current part) being supplied from the replenishment part supply unit at the replenishment part supply position, or is the same as the specified part 52 at the replenishment part supply position (part matching condition). For example, if the replenishment part is part C and the replenishment part supply unit is part supply unit TP06, the supply part 53 (current part) is part C, which is the same as the replenishment part (see Figure 5), so the replenishment part confirmation unit 26c determines the part matching condition as "match" and allows part replenishment.

The replenishment part confirmation unit 26c allows part replenishment if the replenishment part is registered in the replacement part group 45 (first replacement part information) to which the specified part 52 or the supply part 53 (current part) of the replenishment target part supply position belongs (condition 1). For example, if the replenishment part is part A and the replenishment target part supply unit is part supply unit TP04, the specified part 52 and the supply part 53 are both part B, which do not match the replenishment part (part match condition is "mismatch") (see FIG. 5). However, since part A is registered in the replacement group 45 (group number GR001) to which part B belongs (see FIG. 4(b)), the replenishment part confirmation unit 26c judges that condition 1 (bidirectional substitution condition) is "Yes" and permits part replenishment to substitute part A for part B. When a part is substituted, the supply part 53 is updated to the substituted part name 42. Note that the replenishment part confirmation unit 26c does not judge condition 1 if condition 2 described later is set for the specified part 52.

The replenishment part confirmation unit 26c determines that part replenishment is permitted if the replenishment part is registered in the second substitute part information (substitutable parts 47 in part information 24) of the designated part 52 at the replenishment target part supply position (Condition 2). For example, if the replenishment part is part B and the replenishment target part supply unit is part supply unit TP07, the designated part 52 is part C, which does not match the replenishment part (part match condition is "mismatch") (see Figure 5). However, since part B is registered in the substitutable parts 47 for part C (Figure 4(c)), the replenishment part confirmation unit 26c determines that condition 2 (one-way substitution condition) is "Yes" and permits part replenishment by substituting part B for part C.

In FIG. 3, for a part supply unit in which the parts to be replenished are restricted by the supply part restriction information 54 of the part mounting information 22, the replenishment part confirmation unit 26c determines whether the replenishment part is a part that matches the supply part restriction information 54 (condition 3) regardless of the first substitute part information (condition 1) or the second substitute part information (condition 2). That is, for a part supply position 50 in which condition 3 (restriction condition) is set, the replenishment part confirmation unit 26c does not apply condition 1 (bidirectional substitution condition) and condition 2 (one-way substitution condition), but applies condition 3 to determine whether to allow part replenishment. If the replenishment part is a suitable part (condition 3 is "Yes"), the replenishment part confirmation unit 26c allows replenishment, and if it is not a suitable part (condition 3 is "No"), it prohibits replenishment.

For example, if the replenishment part is part A and the part supply unit to be replenished is part supply unit TP01, "A" is registered in the supply part restriction information 54 and matches the replenishment part (condition 3 is "Yes") (see FIG. 5). Therefore, the replenishment part confirmation unit 26c allows the replenishment of part A. On the other hand, if the replenishment part is part B, which is registered in the same alternative part group as part A, and the part supply unit to be replenished is part supply unit TP01, the replenishment part confirmation unit 26c does not allow the replenishment of part B because it does not match part A registered in the supply part restriction information 54 (condition 3 is "No").

In this way, the replenishment part confirmation unit 26c determines whether to allow replenishment based on the part matching condition, condition 1 (bidirectional substitution condition), and condition 2 (one-way substitution condition).

In the example of FIG. 5, part substitution is restricted at part supply position FP01 due to condition 3 (restriction condition), and only part A is permitted to be replenished. Similarly, part supply position FP05 is permitted to only replenish part B. On the other hand, part supply positions FP02 to FP04 and FP06 to FP08 have blank parts supply restriction information 54, and part substitution is not prohibited. Therefore, in principle, these part supply positions are permitted to substitute parts based on the alternative part group information 25 (condition 1). However, as with part supply positions FP06 to FP08, when a replaceable part 47 is registered in the part information 24 of part C of the specified part 52, the decision is made exceptionally based on condition 2. In other words, part supply positions FP06 to FP08 are permitted to substitute either part A or part B due to condition 2 (one-way substitution condition).

In FIG. 3, the replenishment part confirmation unit 26c outputs to the component mounting devices W1-W3 or the reader T a message indicating that replenishment is permitted if replenishment is permitted, or a message indicating that replenishment is prohibited if replenishment is prohibited. Upon receiving this output, the touch panel 14 of the component mounting devices W1-W3, the lamp 7b of the tape feeder 7, or the touch panel Tc of the reader T displays whether replenishment of the part to be replenished is permitted or prohibited.

In this way, the information management device 3 is a replenishment parts confirmation device that includes an information acquisition unit 26a (first information acquisition unit) that acquires first substitute part information in which mutually replaceable parts are registered as substitute part groups 45, and second substitute part information in which parts that are replaceable for each part (replaceable parts 47) are registered, a replenishment parts information acquisition unit (management wireless communication unit 3a, reader read information acquisition unit 26b) that acquires information on parts to be replenished to the part supply unit, and a replenishment parts confirmation unit 26c that determines whether or not to permit replenishment of parts based on the part match condition, condition 1, condition 2, and condition 3, and that confirms the suitability of parts to be replenished to the part supply units of part mounting devices W1 to W3. This makes it possible to confirm the suitability of parts to be replenished to the part supply units.

In FIG. 3, component mounting devices W1 to W3 have the same configuration, and the following describes component mounting device W1. Component mounting device W1 includes a component mounting device control unit 30, a board transport unit 5, a tape feeder 7 (component supply unit), a mounting head 10, an XY unit 11, a board recognition camera 12, a component recognition camera 13, and a touch panel 14. Component mounting device control unit 30 includes a device memory unit 31, a component mounting control unit 36, a recognition unit 37, and a board transport control unit 38. Component mounting control device 30 (control unit) communicates with information management device 3 via communication network 2.

The device memory unit 31 is a storage device that stores component mounting information 32, supply position information 33, component information 34, alternative group information 35, etc. The component mounting information 32, supply position information 33, component information 34, and alternative group information 35 store information on the component mounting position 40 of the components that the component mounting device W1 mounts on the board P, among the component mounting information 22, supply position information 23, component information 24, and alternative component group information 25 stored in the management memory unit 21 of the information management device 3.

In FIG. 3, the board transport control unit 38 controls the board transport unit 5 to transport the board P brought in from upstream to the mounting work position, position and hold it, and then transport it downstream. The recognition unit 37 recognizes and processes the image of the board mark captured by the board recognition camera 12 to detect the position of the board P. The recognition unit 37 also recognizes and processes the image of the component held by the suction nozzle captured by the component recognition camera 13 to detect the holding position of the component.

The component mounting control unit 36 controls the tape feeder 7 (component supply unit), mounting head 10, XY unit 11, board recognition camera 12, and component recognition camera 13 based on the component mounting information 32 to pick up components from the component supply unit 6 and mount them at component mounting positions 40 on the board P held at the mounting work position. In other words, the component mounting control unit 36, recognition unit 37, tape feeder 7 (component supply unit), mounting head 10, XY unit 11, board recognition camera 12, and component recognition camera 13 are a component mounting work unit 39 that picks up components from the component supply unit and mounts them at component mounting positions 40 based on the component mounting information 32.

Now, referring to FIG. 7, the component mounting work on the board P by the component mounting work unit 39 will be described. FIG. 7 shows a schematic diagram of a component mounting work in which the component mounting work unit 39 mounts components on the component mounting positions 40 of the board P based on the component mounting information 22 (component mounting information 32) shown in FIG. 4(a) from the component supply unit 6, in which the component supply unit 51 is placed at the component supply position 50 based on the supply position information 23 (supply position information 33) shown in FIG. 5. The component mounting work unit 39 mounts components on each of the component mounting positions M01 to M10 on the board P based on the component mounting information 32, supply position information 33, component information 34, and alternative group information 35.

Specifically, because "A" is registered in the mounting component restriction information 43 for component mounting position M01, the component mounting work unit 39 mounts component A supplied by component supply units TP01 and TP02 at component mounting position M01. Similarly, because "B" is registered in the mounting component restriction information 43 for component mounting position M05, the component mounting work unit 39 mounts component B supplied by component supply units TP03 to TP05 at component mounting position M05.

The component mounting restriction information 43 for component mounting positions M02-M04 and M06-M10 is blank. Furthermore, components A and B are registered in the same alternative component group 45 (group number GR001). Therefore, the component mounting work unit 39 mounts either component A supplied by component supply units TP01 and TP02, or component B supplied by component supply units TP03-TP05, at component mounting positions M02-M04. Furthermore, components A and B are registered as replaceable components 47 for component C. Therefore, the component mounting work unit 39 mounts either component A supplied by component supply units TP01 and TP02, or component B supplied by component supply units TP03-TP05, or component C supplied by component supply units TP06-TP08, at component mounting positions M06-M10.

Next, following the flow of FIG. 8, a method of confirming whether the parts to be replenished to the part supply units of the part mounting devices W1 to W3 in the part mounting system 1 are appropriate will be described. First, the information acquisition unit 26a acquires from the management memory unit 21 (memory unit) first alternative part information in which mutually replaceable parts are registered as an alternative part group 45, second alternative part information in which parts that are replaceable for each part (replaceable parts 47) are registered, and supply part restriction information 54 that restricts the substitution of parts to be replenished to the part supply units (ST1). Next, the system waits until the operator operates the operation button 7a of the tape feeder 7 to request parts replenishment (ST2) ("None" in ST3).

When there is a parts supply request (operation button 7a is operated) ("Yes" in ST3), information on the parts supply position to be replenished and the parts supply unit to be replenished is acquired, and the system waits ("No" in ST5) until the worker reads the tag attached to the reel with reader T (ST4). When information on the parts to be replenished to the parts supply unit is acquired from reader T ("Yes" in ST5), replenishment parts confirmation unit 26c determines whether the replenished parts are the same as supplied parts 53 (current parts) or specified parts 52 at the parts supply position to be replenished (parts matching condition) (ST6).

If the replenishment part matches the supply part 53 or the specified part 52 ("Match" in ST6), the replenishment part confirmation unit 26c notifies (outputs) permission to replenish parts (ST7). In this case, the part is not substituted, and a part with the same part name 42 is replenished. For example, if the replenishment part is part A and the part supply unit to be replenished is part supply unit TP02 (Figure 5), the replenishment part matches the supply part 53 (part A). Therefore, the replenishment part confirmation unit 26c determines "Match" in ST6 and notifies (outputs) permission to replenish parts (ST7).

In FIG. 8, if the replenishment part does not match the current part or the specified part 52 of the replenishment target part supply location ("Mismatch" in ST6), the replenishment part confirmation unit 26c judges whether or not supply part restriction information 54 is registered at the replenishment target part supply location, i.e., whether or not condition 3 exists (ST8). If condition 3 exists ("Yes" in ST8), the replenishment part confirmation unit 26c judges whether or not the part matches the supply part restriction information 54 (ST9). If it matches (Yes in ST9), the replenishment part confirmation unit 26c notifies (outputs) permission for part replenishment and also updates the supply part 53 in the supply location information 23 to the replenished part name 42 (ST10).

In FIG. 8, if condition 3 does not exist ("No" in ST8), the refill part confirmation unit 26c judges whether there is second substitute part information (substitutable part 47) for the specified part 52 at the refill target part supply location (ST11). If there is second substitute part information ("Yes" in ST11), the refill part confirmation unit 26c judges whether the refill part is registered in the second substitute part information (substitutable part 47) for the specified part 52 at the refill target part supply location, i.e., whether condition 2 is satisfied (ST12). Then, if the refill part confirmation unit 26c judges that condition 2 is satisfied (Yes in ST12), it notifies permission for part refill (ST10).

For example, if the replenishment part is part B and the part supply unit to be replenished is part supply unit TP08, part B is registered in replaceable parts 47 in the part information 24 of the specified part 52 (part C) (see Figures 4(c) and 5), so the replenishment part confirmation unit 26c judges "Yes" in ST11 and branches to ST12 to determine whether condition 2 is met. Since part B is registered in replaceable parts 47 of part C, the replenishment part confirmation unit 26c judges that condition 2 is met (Yes in ST12) and notifies permission for part replenishment (ST10).

In FIG. 8, if condition 2 does not exist ("None" in ST11), the replenishment part confirmation unit 26c determines whether the replenishment part is registered in the substitute part group 45 (first substitute part information) to which the specified part 52 of the replenishment target part supply position belongs, that is, whether condition 1 (bidirectional substitution condition) is satisfied (ST13). Then, if the replenishment part confirmation unit 26c determines that condition 1 is satisfied (Yes in ST13), it notifies (outputs) permission for part replenishment (ST10).

For example, if the replenishment part is part B and the part supply unit to be replenished is part supply unit TP02, part B is registered in the alternative group 45 (group number GR001) of the specified part 52 (part A) (see Figures 4(b) and 5), so the replenishment part confirmation unit 26c determines that condition 1 is satisfied (Yes in ST13) and notifies permission for part replenishment (ST10).

In FIG. 8, if none of Condition 3 (ST9), Condition 2 (ST12), and Condition 1 (ST13) are satisfied (No), the replenishment part confirmation unit 26c notifies (outputs) that part replenishment is not permitted (ST14).

As described above, the component mounting system 1 of this embodiment includes a management memory unit 21 (memory unit) that stores first alternative part information in which mutually replaceable parts are registered as an alternative part group 45, and second alternative part information in which parts that are replaceable for each part (replaceable parts 47) are registered, a component mounting work unit 39 that removes parts from the component supply unit and mounts them at the component mounting position 40, a replenishment part information acquisition unit (management wireless communication unit 3a, reader read information acquisition unit 26b) that acquires information on parts to be replenished to the component supply unit, and a replenishment part confirmation unit 26c that determines whether or not to permit replenishment of parts based on the component match condition, condition 1, and condition 2. This makes it possible to confirm the suitability of parts to be replenished to the component supply unit.

In the above embodiment, an example has been described in which a worker performs part replenishing work while checking parts with the reader T. However, the part replenishing work may be performed by an automatic part replenishing device having an articulated robot (such as a self-propelled robot). In this case, the reader is built into the automatic part replenishing device, and the part replenishing work is performed in the automatic part replenishing device. In addition, the replenishing part confirmation unit 26c outputs a replenishing permission notice or a replenishing non-permission notice, which is notified to the automatic part replenishing device.

The component mounting system, replenishment component confirmation device, and replenishment component confirmation method of the present invention have the effect of being able to confirm whether the components replenished to the component supply unit are appropriate, and are useful in the field of mounting components on a circuit board.

1 Part mounting system 3 Information management device (supplement part confirmation device)
7 Tape feeder (parts supply unit)
39 Component mounting work section A, B, C Component M01 to M10 Component mounting position P Board T Reader (supplement component information acquisition section)
W1 to W3 Component placement device

Claims (11)

A component mounting system that takes out components set in a component supply unit and mounts them on a component mounting position on a board,
a storage unit that stores first substitute part information in which mutually replaceable parts are registered as a substitute part group, and second substitute part information in which a part that can be replaced for each part is registered;
a component mounting work section that takes out a component from the component supply unit and mounts the component at the component mounting position;
a replenishment part information acquisition unit that acquires information on parts to be replenished to the part supply unit;
and a replenishment part confirmation unit that outputs a message indicating that replenishment is permitted if the part identified by the information acquired by the replenishment part information acquisition unit is the same as a part being supplied from the part supply unit (hereinafter referred to as a current part) or a designated part designated as a part to be supplied by the part supply unit, or if the part is registered in the second alternative part information for the designated part, or if the second alternative part information does not exist and the part is registered in an alternative part group to which the current part or the designated part belongs, and outputs a message indicating that replenishment is prohibited if neither of the above cases apply. The component mounting system of claim 1, wherein, when a higher-level component can be used as a substitute for a lower-level component but the lower-level component cannot be used as a substitute for the higher-level component, the second substitute information for the lower-level component includes the higher-level component, and no second substitute information exists for the higher-level component or second substitute information does not include the lower-level component is registered. The storage unit further stores supply part restriction information that restricts replacement of parts replenished to the part supply unit,
2. The component mounting system of claim 1, wherein the replenishment part confirmation unit determines, for a component supply unit in which the parts to be replenished are restricted by the supply part restriction information, whether a part identified by the information acquired by the replenishment part information acquisition unit is a part that conforms to the supply part restriction information regardless of the first substitute part information or the second substitute part information, and if it conforms, outputs a message indicating that replenishment is permitted, or if it does not conform, outputs a message indicating that replenishment is prohibited. The component mounting system according to claim 1, wherein the replacement component information acquisition unit includes a reader that optically reads an identifier representing component information or a reader that reads component information from a memory element capable of wireless communication. A replenishment component confirmation device for confirming components to be replenished in a component supply unit of a component mounting device that takes out components set in the component supply unit and mounts them at component mounting positions on a board, comprising:
a first information acquiring unit that acquires, from a storage unit, first substitute part information in which mutually replaceable parts are registered as a substitute part group, and second substitute part information in which a part that can be replaced for each part is registered;
a replenishment part information acquisition unit that acquires information on parts to be replenished to the part supply unit;
and a replenishment part confirmation unit that outputs a message indicating that replenishment is permitted if the part identified by the information acquired by the replenishment part information acquisition unit is the same as the current part or a designated part designated as a part to be supplied by the part supply unit, or if the part is registered in the second alternative part information of the designated part, or if the second alternative part information does not exist and the part is registered in an alternative part group to which the current part or the designated part belongs, and outputs a message indicating that replenishment is prohibited if neither of the above cases apply. The replenishment part confirmation device according to claim 5, wherein, when a higher-level part can be used as a substitute for a lower-level part, but the lower-level part cannot be used as a substitute for the higher-level part, the second substitute part information for the lower-level part includes the higher-level part, and for the higher-level part, there is no second substitute part information or second substitute part information not including the lower-level part is registered. the first information acquisition unit acquires, from the storage unit, supply part restriction information that restricts substitution of parts to be replenished to the part supply unit;
6. The replenishment parts confirmation device according to claim 5, wherein, for a part supply unit in which the parts to be replenished are restricted by the supply part restriction information, the replenishment parts confirmation unit determines whether a part identified by the information acquired by the replenishment parts information acquisition unit is a part that conforms to the supply part restriction information regardless of the first substitute part information or the second substitute part information, and if it conforms, outputs a message indicating that replenishment is permitted, or if it does not conform, outputs a message indicating that replenishment is prohibited. The replacement part confirmation device according to claim 5, wherein the replacement part information acquisition unit includes a reader that optically reads an identifier representing part information or a reader that reads part information from a wirelessly communicable memory element. A method for checking replenished components to be replenished in a component supply unit of a component mounting device that removes components set in the component supply unit and mounts them at component mounting positions on a board, comprising:
obtain, from the storage unit, first substitute part information in which mutually replaceable parts are registered as a substitute part group, and second substitute part information in which replaceable parts for each part are registered;
Acquire information on parts to be replenished to the part supply unit;
A replenishment part confirmation method which outputs a message indicating that replenishment is permitted if the part to be replenished is the same as the current part or a designated part designated as a part to be supplied by the part supply unit, or if the part is registered in the second alternative part information of the designated part, or if the second alternative part information does not exist and the part is registered in an alternative part group to which the current part or the designated part belongs, and outputs a message indicating that replenishment is prohibited if neither of the above cases apply. The method for confirming replacement parts according to claim 9, wherein, when a higher-level part can be used as a replacement for a lower-level part, but the lower-level part cannot be used as a replacement for the higher-level part, the second replacement part information for the lower-level part includes the higher-level part, and no second replacement part information exists for the higher-level part, or second replacement part information that does not include the lower-level part is registered. Furthermore, acquiring supply part restriction information for restricting replacement of parts replenished to the part supply unit from the storage unit,
10. The replenishment part confirmation method according to claim 9, further comprising the steps of: when replenishing a part to a part supply unit in which the parts to be replenished are restricted by the supply part restriction information, determining whether the part to be replenished conforms to the supply part restriction information regardless of the first substitute part information or the second substitute part information; and outputting a message indicating that the replenishment is permitted if the part conforms; and outputting a message indicating that the replenishment is prohibited if the part does not conform.

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