JP2004140162A - Method for maintenance of electronic circuit component mounting device, method for monitoring operation state of electronic circuit component mounting device, and electronic circuit manufacturing support system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for the maintenance of an electronic circuit component mounting device which is improved in the productivity of mounting the electronic circuit component on a circuit substrate and to provide a method for monitoring an operating state and an electronic circuit manufacturing support system. <P>SOLUTION: A monitoring/maintenance center 6 is provided at a place separate from all of a plurality of factories 2 each having electronic circuit component mounting devices 12, 14. The center 6 has a monitoring system 310 and a maintenance place 301. The center 6 immediately stores use prohibition when the number of component supply times or the number of supply errors becomes a set number or larger so that a feeder for prohibiting its use is generated in the devices 12, 14 in such a manner that the use prohibiting feeder is not used at a feeder component supply table placing time in the devices 12, 14. The feeders of the plurality of the factories 2 are all repaired, inspected, etc., in the center 6, and when the feeders become usable, the storage of the prohibition is erased to release the prohibition. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a maintenance method, an operation status monitoring method, and an electronic circuit production support system for an electronic circuit component mounting machine, and more particularly to an improvement in productivity.
[0002]
[Prior art]
The electronic circuit component is a component that is mounted on a circuit board such as a printed wiring board to form an electronic circuit. In an electronic circuit component mounting machine, the electronic circuit component is mounted on the circuit board. This mounting is performed in various modes, and various measures have conventionally been taken to improve productivity. For example, if an error occurs when an electronic circuit component is sucked from a component feeder by a suction nozzle and removed, the number of occurrences of the suction error is counted for each feeder arrangement position number, and the error occurrence status of the component feeder is monitored. If there is a component feeder that frequently generates errors, the supply of the electronic circuit component by the component feeder is stopped, and the electronic circuit component is supplied to another component feeder that holds the same type of electronic circuit component. This another component feeder may be a component feeder of a component supply device having a component feeder that frequently generates errors, and may be a component supply device of an electronic circuit component mounter different from the electronic circuit component mounter having the component supply device. May be used. In this way, there is no need to interrupt the mounting work for replacement as in the case of replacing a component feeder whose number of errors has reached the set number of times and supplying electronic circuit components to another component feeder. As a result, productivity is improved (for example, see Patent Document 1).
[0003]
[Patent Document 1]
JP-A-5-343886
[0004]
Problems to be Solved by the Invention, Means for Solving Problems, and Effects
The present invention has been made in view of the above circumstances, and has an object to perform mounting of electronic circuit components on a circuit board with higher productivity.According to the present invention, electronic circuit component mounting machines of the following aspects are provided. A maintenance method, a method for monitoring the operation status of an electronic circuit component mounting machine, an electronic circuit production support system, and an operation status monitoring system are obtained. As in the case of the claims, each aspect is divided into sections, each section is numbered, and the number of another section is cited as necessary. This is for the purpose of facilitating the understanding of the present invention and should not be construed as limiting the technical features and combinations thereof described in the present specification to those described in the following sections. . In addition, when a plurality of items are described in one section, the plurality of items need not always be adopted together. It is also possible to select and adopt only some of the items.
[0005]
In the following items, (1) is equivalent to claim 1, (2) is to claim 2, (4) and (5) are combined to claim 3, ( Item 6) is Claim 4, Item (7) is Item 5 and Item (8), Item (9) and Item (11) are combined in Item 6, Item (12) and Item (13) ), (15) and (16) correspond to claim 7.
[0006]
(1) A maintenance method of an electronic circuit component mounter that is installed in a plurality of factories and intensively performs maintenance of components of a plurality of electronic circuit component mounters each of which mounts an electronic circuit component on a circuit board.
The above components may be components or components. Further, the plurality of factories may be factories of one company or factories of a plurality of companies.
A maintenance place (hereinafter, referred to as a maintenance center) is provided to perform intensive maintenance of the components. The maintenance center may be provided in one of a plurality of factories, or may be provided in a different location from all factories.
The components of a plurality of electronic circuit component mounters installed in a plurality of factories are repaired, inspected, replaced, and the like in a maintenance center. If maintenance is performed intensively, it can be performed more efficiently than in the case where maintenance is performed in individual factories. For example, the number of maintenance jigs and maintenance workers is small, the waiting time of workers is short, and the parts required for maintenance can be collectively obtained at low cost. Costs are reduced and productivity is increased. In addition, information on the components of each electronic circuit component mounter at a plurality of factories can be managed collectively, which facilitates information management.
Each component is dedicated to one of the factories.Even if maintenance is performed intensively, components of multiple factories can be clearly distinguished so that they do not mix. A plurality of factories can be shared, and maintenance can be performed at the maintenance center without distinguishing the components of the plurality of factories. In the latter case, it is desirable that the maintenance center also serves as a supply center for supplying the components to a plurality of factories.
[0007]
(2) The electronic device according to (1), wherein the monitoring of the operation status of the plurality of electronic circuit component mounters is performed in real time by a monitoring system installed at a place distant from at least one of the electronic circuit component mounters. Maintenance method for circuit component mounters.
Although there may be one or more monitoring systems, it is desirable to perform centralized monitoring by one monitoring system as described in the following section.
When there is one monitoring system, the monitoring system may be provided in one of a plurality of factories, or may be provided in a location remote from all factories. Further, it may be provided at the same location as the maintenance center or at a different location.
When there are a plurality of monitoring systems, for example, the same number as a plurality of factories may be provided and one monitoring system may be provided. Alternatively, at least one monitoring system may be provided at a location away from the factories. The number of monitoring systems may be less than the number of factories, and at least one of the monitoring systems may be provided away from the factories.
When a monitoring system is provided in a factory, for example, if there is one electronic circuit component mounter installed in the factory, it is provided in a location away from the electronic circuit component mounter, and the electronic circuit component mounter is installed in the factory. If a plurality of electronic circuit component mounters are installed, the electronic circuit component mounters are installed at a location distant from at least one of the electronic circuit component mounters.
By monitoring the operating conditions, it is possible to determine whether the components require maintenance. In particular, if monitoring is performed in real time, it is possible to immediately recognize the necessity of maintenance, and it is possible to perform maintenance without delay.
If the monitoring system is installed at a location distant from at least one of the plurality of electronic circuit component mounters, the monitoring of the plurality of electronic circuit component mounters can be performed collectively. Therefore, intensive monitoring can be performed together with intensive maintenance, and the cost required for monitoring can be reduced, and productivity can be improved.
[0008]
(3) The maintenance method of the electronic circuit component mounter according to the above item (2), wherein the monitoring of the plurality of electronic circuit component mounters is performed by a single monitoring system.
According to this section, the monitoring cost can be significantly reduced. Also, monitoring information on a plurality of electronic circuit component mounters can be managed collectively, and management is easy.
[0009]
(4) The monitoring system prohibits the use of the component if the component has become unusable or highly likely to be unusable (2) or (3). The maintenance method of the electronic circuit component mounting machine described in the item.
It is possible to prevent a component that has become unusable or a component that is likely to be unusable from being used continuously, thereby avoiding the occurrence of a defective circuit board. One component can be shared by multiple factories, in which case the component can be prohibited from being used across multiple factories, and the efficiency can be improved by sharing the component among multiple factories. With good use, the use of components that should not be used can be reliably avoided. The components that should not be used may be discarded. However, if the use is prohibited, the components are not discarded and can be reused by maintenance.
(5) The electronic circuit component according to (4), wherein when the component whose use has been prohibited by the monitoring system is restored to a usable state by performing maintenance, the monitoring system releases the use prohibition. Mounting machine maintenance method.
The components whose use has been prohibited can be reused by maintenance, and can be used without waste. If one component is shared by multiple factories, components that are prohibited from being used in multiple factories due to centralized monitoring can be reused in multiple factories if they can be reused due to maintenance. Since the prohibition is lifted, it becomes easy to share the components among a plurality of factories.
[0010]
(6) The component includes a component feeder that accommodates at least a large number of electronic circuit components and sequentially supplies the electronic circuit components one by one from a predetermined component supply unit. (1) to (5) The maintenance method of the electronic circuit component mounter according to any one of the above items.
Examples of the component feeder include a tape feeder, a bulk feeder, and a stick feeder. In the tape feeder, a large number of electronic circuit components are held in a component holding tape, and housed in a state of being a taping electronic circuit component.In the bulk feeder, a large number of electronic circuit components are housed in a bulk in a container, In a stick feeder, a large number of electronic circuit components are accommodated in a stick-shaped casing in a state of being arranged in a line. In any of the component feeders, the accommodated electronic circuit components are sent to a component supply unit by a component feeder, and are sequentially supplied one by one. Therefore, members provided in the component feeder and related to the supply of the electronic circuit components, such as the component feeder, frequently operate, are severely deteriorated and consumed, and are likely to require maintenance. The effect of intensive maintenance can be effectively enjoyed. In addition, it is often necessary to have a large number of spare parts for component feeders in order to avoid a decrease in the operating rate of electronic circuit component mounters as much as possible. For example, the number of holdings per factory can be reduced, and the benefits of centralized monitoring and centralized maintenance can be more effectively enjoyed.
[0011]
(7) A method for performing maintenance of components of an electronic circuit component mounter for mounting electronic circuit components on a circuit board,
If the component has become unusable or likely to be unusable, the monitoring system is prohibited from using the component, and the component is used by performing maintenance. A maintenance method for an electronic circuit component mounter that causes a monitoring system to release the prohibition of use when it returns to a possible state. One or a plurality of electronic circuit component mounters may be used. When there are a plurality of electronic circuit component mounters, they may be mounters in the same factory or different factory.
The monitoring may be performed at a place remote from the electronic circuit component mounter, or may be performed at a place where the electronic circuit component mounter is installed. The same applies to maintenance. The monitoring and the maintenance may be performed in different places or may be performed in the same place.
When there are a plurality of electronic circuit component mounters, monitoring may be performed intensively by one monitoring system, or may be performed by a plurality of monitoring systems. When there is one monitoring system, the monitoring system may be provided together with at least one of the plurality of electronic circuit component mounters, or may be installed at a location remote from at least one of the electronic circuit component mounting machines. When there are a plurality of monitoring systems, a monitoring system may be provided for each of the plurality of electronic circuit component mounters, and at least one monitoring system may be provided separately from the electronic circuit component mounters. The same applies to a case where a plurality of electronic circuit component mounters are provided in a plurality of factories. The maintenance may be performed for each electronic circuit production system including the mounting machine, may be performed for each factory, or may be performed intensively for components of the electronic circuit component mounting machines in a plurality of factories.
According to the present mode, for example, the functions and effects described in the modes (4) and (5) can be obtained.
The features of the above item (6) are applicable to the invention of this item.
[0012]
(8) The monitoring of the operation status of a plurality of electronic circuit component mounters, each of which mounts an electronic circuit component on a circuit board, is centralized by a monitoring system installed at a location distant from at least one of the electronic circuit component mounters. To monitor the operating status of electronic circuit component mounting machines.
The present invention is particularly effective when the plurality of electronic circuit component mounters are installed in a plurality of factories.
If the monitoring of the operating status of multiple electronic circuit component mounters is centralized by a monitoring system, monitoring can be performed at low cost, and information obtained by monitoring multiple electronic circuit component mounters can be collectively collected. Can be managed.
[0013]
(9) The monitoring system prohibits the use of the component if the component becomes unusable or highly likely to become unusable (7) or (8) The method of monitoring the operation status of the electronic circuit component mounting machine according to the item (2).
According to the present mode, for example, the operation and effect described in the mode (4) can be obtained.
(10) The electronic circuit component according to (9), wherein when the component whose use has been prohibited by the monitoring system is restored to a usable state by performing maintenance, the monitoring system releases the use prohibition. A monitoring method for the operating status of the mounting machine.
According to this aspect, for example, the operation and effect described in (5) can be obtained.
[0014]
(11) The component includes a component feeder that accommodates at least a large number of electronic circuit components and sequentially supplies the electronic circuit components one by one from a predetermined component supply unit. (8) to (10). Item 13. The method for monitoring the operation status of an electronic circuit component mounting machine according to any one of the items.
The component feeder is described, for example, in the same manner as the component feeder described in the section (6).
[0015]
(12) Each of the plurality of electronic circuit component mounters that mounts electronic circuit components on a circuit board is installed at a location distant from at least one of the plurality of electronic circuit component mounters. Electronic circuit production support system to support.
The support of the production of the electronic circuit is provided, for example, based on monitoring of the operation status of the electronic circuit component mounter. With the support of the production of the electronic circuit, the productivity of the electronic circuit by the electronic circuit component mounter is improved. In particular, since support for a plurality of electronic circuit component mounters is performed by one electronic circuit production support system, the efficiency is high, and in that respect also, the productivity of electronic circuits is improved.
(13) The electronic circuit component mounter includes a use prohibition unit that prohibits use of the component when the component is unusable or highly likely to be unusable. The electronic circuit production support system according to the above mode (12).
According to the present mode, for example, the operation and effect described in the mode (4) can be obtained.
(14) The device according to (13), further including a use prohibition canceling unit for canceling use prohibition of the component whose use is prohibited by the use prohibition unit when the component is returned to a usable state by performing maintenance. Electronic circuit production support system.
According to this aspect, for example, the operation and effect described in (5) can be obtained.
[0016]
(15) The use prohibition unit prohibits the use of the component when at least one of the number of use times and the operation failure of the component occurs under a condition exceeding a preset condition (13). Item) or the electronic circuit production support system according to item 14). The preset condition for the malfunction may be, for example, that the number of malfunction occurrences exceeds the set number, or that the use prohibition is predicted in advance by a statistical method and the time elapses. .
The features of this paragraph are also applicable to the inventions of the above paragraphs (4), (7) and (9).
(16) The components include a component feeder that accommodates at least a large number of electronic circuit components and sequentially supplies the electronic circuit components one by one from a predetermined component supply unit. An electronic circuit production support system according to any one of the above items.
The component feeder is described, for example, in the same manner as the component feeder described in the section (6).
[0017]
(17) Installed at a location away from at least one of a plurality of electronic circuit component mounters each of which mounts an electronic circuit component on a circuit board, and intensively operating the plurality of electronic circuit component mounters. Monitoring system for electronic circuit component mounting machines to monitor the operating conditions.
In the operating condition monitoring system of this section, for example, the method described in (8) is implemented.
The features described in the items (13) to (16) can be applied to the operation status monitoring system of the present item.
[0018]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
An electronic circuit production system 4 is provided in each of the plurality of factories 2 shown in FIG. 1, and electronic circuits are produced. A monitoring and maintenance center 6 is provided at a location distant from any of the factories 2, and the operating status of the electronic circuit component mounting machines constituting each of the electronic circuit production systems 4 of the factories 2 is collectively monitored in real time. In addition to monitoring, maintenance of components of the electronic circuit component mounter is intensively performed. Hereinafter, first, the electronic circuit production system 4 will be described. In the present embodiment, the plurality of factories 2 are factories of the same company, and the configuration of the electronic circuit production system 4 provided in each factory 2 is the same.
[0019]
As shown in FIG. 2, the electronic circuit production system 4 includes a solder coating machine (for example, a screen) that applies creamy solder to a printed wiring board as a circuit board from an upstream side (left side in FIG. 2) to a downstream side. A printing machine) 10, two electronic circuit component mounters 12 and 14 for mounting electronic circuit components (hereinafter abbreviated as components) on a printed wiring board, and a reflow furnace 16 for soldering the components mounted on the printed wiring board. Are arranged. A wiring board transporter 18 connecting each of the above working machines, and a wiring board loader 20 for loading a printed wiring board into the present system is provided upstream of the solder coating machine 10. Downstream, a wiring board unloader 22 for unloading a printed wiring board from the present system is provided, and further, a computer 26 (hereinafter, referred to as a host computer 26, which centrally controls those work machines outside the system, see FIG. 1). )) Is provided. In the electronic circuit component mounter 12 on the upstream side (hereinafter, abbreviated as the component mounter 12 and referred to as the “first mounter 12” to distinguish it from the electronic circuit component mounter 14), the plurality of mounting heads make one turn. This is a rotary head type mounting machine having a component mounting device that can be turned around an axis. The electronic circuit component mounting machine 14 (component mounting machine 14, "second mounting machine 14") on the downstream side has a mounting head of an XY robot. Is an XY robot type mounting machine having a component mounting device that is moved by, for example, a first mounting machine 12 mounts relatively small components, and a second mounting machine 14 mounts relatively large or irregularly shaped components. And perform a component mounting operation on one printed wiring board. In FIG. 1, the electronic circuit production system 4 typically shows a solder coating machine 10, mounting machines 12, 14 and a reflow furnace 16.
[0020]
FIG. 3 is a plan view of the first mounting machine 12, and FIG. 4 is a partial cross-sectional side view mainly showing the component mounting device of the first mounting machine 12. The first mounting machine 12 is mainly provided in the work machine main body 50, a wiring board fixing device 54 for fixing a printed wiring board 52 as a circuit board provided in the work machine main body 50, and the work machine main body 50. Then, an XY table device 56 as a wiring board moving device or a wiring board fixing device moving device for moving the wiring board fixing device 54 in the X-axis direction and the Y-axis direction, and the back of the XY table device 56 of the work implement body 50 (FIG. 2), a component mounting device 60 disposed above the wiring board fixing device 54 and the component supply device 58 of the work machine body 50 and mounting components, and a component mounting device. A wiring board imaging device 62 having a CCD camera as an imaging device, which is arranged in front of 60 so as to be able to image the surface (mounting surface) of the printed wiring board 52, and a first mounting machine control device 64 for controlling these devices. It is constructed from FIG. 5) and. The mounting machine has substantially the same configuration as that described in the unpublished Japanese Patent Application No. 2001-172915 by the present applicant. The component mounting apparatus 60 is described in Japanese Patent Application Laid-Open No. 6-342998. Japanese Patent Application Laid-Open No. 2001-345599 and the like, and the component supply device 58 are configured in substantially the same manner as that described in Japanese Patent Publication No. 8-21791. Stay in.
[0021]
The wiring board fixing device 54 holds and fixes the printed wiring board 52 at a position substantially expected in the mounting operation, and includes a carry-in conveyor and a carry-out conveyor connected to the upstream and downstream wiring board transporters 18. (Not shown). The XY table device 56 supports the wiring board fixing device 54 and moves the wiring board fixing device 54 in the Y-axis direction. The XY table device 56 supports the Y table device 72 and moves the Y table device 72 in the X-axis direction. And an X table device 74 for moving. Each of the Y table device 72 and the X table device 74 has a servomotor serving as a driving source, a ball screw mechanism, and the like.
[0022]
The component supply device 58 mainly includes two component supply tables 78, a component supply table moving device 80 that moves the component supply tables 78 independently of each other in the X-axis direction, and a component supply table 78. A tape feeder 82 (hereinafter, abbreviated as a feeder 82) as a plurality of component feeders capable of sequentially feeding out the components held on the tape. The illustration of the feeders 82 arranged side by side on one component supply table 78 is omitted. ) At a predetermined component supply position so that predetermined components can be taken out according to the mounting order.
[0023]
The electronic circuit components supplied by the feeder 82 are held by component holding tapes to form taping electronic circuit components, and the feeder 82 accommodates a large number of electronic circuit components. The feeder 82 is provided with a tape feeding device (not shown) as a component feeding device. By feeding the tape, the components 90 (see FIG. 4) are sequentially positioned at a predetermined component feeding unit, and the component feeding unit , One by one. The tape is, for example, wound around a reel (not shown) as a tape holder as a component holder and set in the feeder 82.
[0024]
In the present embodiment, a barcode is provided on each of the plurality of feeders 82 and the reels. The barcode provided on the feeder 82 includes feeder information that is information on the feeder 82, for example, the type, number, size, component holding form, and the like of the feeder. In the present embodiment, the number assigned to the feeder 82 is a feeder ID (Identification), and the feeder 82 is specified and identified by the number. The feeder 82 also displays a feeder ID and the like so that the operator can recognize it.
[0025]
The bar code provided on the reel includes component information (reel information) that is information on the reel (that is, component), for example, component name, shape, size, electrical characteristic value, manufacturer, packing form, taping. The number of stored components, the date of manufacture, the lot number, and the like held in the electronic circuit components are stored. In the present embodiment, the electronic circuit component is defined by, for example, a component identification code that is a component identifier. The component identification code includes information that can identify the electronic circuit component by distinguishing it from other electronic circuit components, for example, a type. In the present embodiment, the type is identified by a part name such as 3216C, 2125R, 3317T, a shape, a dimension, an electrical characteristic value, and a manufacturer. The bar code is considered to include a component identification code, and the type of the electronic circuit component is identified by reading the bar code. The barcode is a type of information storage unit that stores information and the like regarding members and the like provided with the barcode, and is also a one-dimensional code that is an identification code, and the stored information is, for example, a barcode reader as an information reading device. Read. The reel also displays a component identification code or the like so that the operator can understand it.
[0026]
As shown in FIG. 4, the component mounting apparatus 60 mainly includes an index table 86, and a plurality of mounting heads 88 held around the index table 86 at right angles to the printed wiring board 52. Each of the mounting heads 88 has a suction nozzle 92 as a component holder for holding the component 90 at the distal end. The suction nozzle 92 is connected to a negative pressure source (not shown) and suctions the component 90 by negative pressure. The mounting heads 88 are held at equal angular intervals by an index table 86. When the index table 86 is intermittently rotated by a constant angle by a table intermittent rotation device 94, each mounting head 88 is connected to the component supply unit shown in FIG. The moving path including the station C and the component mounting station D can be sequentially moved. The index table 86 and the table intermittent rotating device 94 constitute a head turning device as a head moving device. The component mounting device 60 includes a mounting head elevating device 96 shown in FIG. 5 and a mounting head rotating device (not shown). The mounting heads 88 are moved up and down at the component supply station C and the component mounting station D. And, if necessary, rotated about its own axis.
[0027]
As shown in FIG. 3, a component imaging station S exists on the movement path of the mounting head 88, and a component imaging device 102 (an imaging device is a CCD) for imaging the component 90 sucked and held from below the suction nozzle 92. And a component image processing unit 104 (see FIG. 5, which is included in the first mounting machine control device 64) which is an image processing device. 90 holding position error information is acquired. The holding position error includes a position error in the X-axis and Y-axis directions of the component relative to the mounting head 88 at a predetermined reference point, for example, a center point, and a rotation position error of the mounting head 88 around the rotation axis. A head rotation station T is further provided on the movement path of the mounting head 88, where the mounting head rotating device 98 rotates the mounting head 88 based on the rotation position error information in the holding position error information, The rotational position error is corrected.
[0028]
The position of the wiring board imaging device 62 is fixed, and an arbitrary position on the surface of the printed wiring board 52 can be imaged by the movement of the printed wiring board 52 by the XY table device 56. The image data obtained by the wiring board imaging device 62 is processed by a wiring board image processing unit 106 (see FIG. 5, which is included in the first mounting device control device 64), which is an image processing device. A plurality of fiducial marks (not shown) are provided on the surface of the printed wiring board 52, and when these are imaged by the wiring board imaging device 62, wiring board fixing position information of the printed wiring board 52 is obtained. Position information of each of the plurality of mounting points is obtained. This position information includes the position error of the mounting point in the X-axis and Y-axis directions.
[0029]
FIG. 5 is a block diagram of the first mounting machine control device 64 for controlling the first mounting machine 12, mainly showing portions that are deeply related to the present invention. The first mounting device control device 64 is mainly composed of a computer 130 (hereinafter, referred to as a mounting control computer 130) having a CPU 120, a ROM 122, a RAM 124, an input / output interface 126, and a bus 128 connecting them. The input / output interface 126 is connected to the wiring board fixing device 54, the XY table device 56, the component supply device 58, the table intermittent rotation device via the respective drive circuits 132 and the control circuit 140 in the first mounting machine control device 64. 94, a mounting head rotating device 98, a display screen 142 and the like are connected. The mounting head elevating device is driven by a driving source of the intermittent table rotation device 94 in synchronization with the intermittent rotation of the index table 86. The display screen 142 constitutes a display device together with a portion of the control device 64 that controls the display screen 142. The display device is a kind of an output device or a notification device, and outputs and notifies information or the like by display.
[0030]
Further, the component imaging device 102 is connected to the input / output interface 126 via the component image processing unit 104, and the wiring board imaging device 62 is connected via the wiring board image processing unit 106, respectively. The holding posture information 90 and the wiring board fixing position information of the printed wiring board 52 are acquired. Further, an input device 134 mainly composed of a keyboard or the like for operating the first mounting machine 12 is connected, and a bar code reader 136 is connected thereto. It is connected to the device 24 and to each other. The ROM 122 stores a basic operation program of the first mounting machine 12 and the like, and the RAM 124 includes a program for component mounting work corresponding to a printed wiring board to be worked, the above-described holding position error information, The wiring board fixed position information and the like are stored.
[0031]
The operation of the mounting machine 12 in the mounting operation is almost the same as that described in the above-mentioned Japanese Patent Publication No. Hei 8-21791, and will be described only briefly here.
When the component 90 is mounted on the printed wiring board 52, the wiring board fixing device 54 holding and fixing the printed wiring board 52 is moved by the XY table device 56 and set on the mounting surface, which is the surface of the printed wiring board 52. The plurality of mounting points are sequentially positioned at positions corresponding to the component mounting station D of the component mounting device 60.
[0032]
In the component mounting device 60, the index table 86 is intermittently rotated by the table intermittent rotation device 94, and the mounting head 88 receives the component 90 from the feeder 82 at the component supply station C. The component 90 is imaged at the component imaging station S, and the resulting rotational position error is corrected by rotating the mounting head 88 at the head rotation station T. Attached to. Among the holding position errors of the component 90, the position errors in the X-axis and Y-axis directions are corrected by correcting the moving position of the printed wiring board 52. At this time, the positional error of the mounting point of the printed wiring board 52 in the X-axis and Y-axis directions obtained by imaging the reference mark and the shift of the reference point of the component 90 caused by the correction of the rotational position error of the component 90 are also included. Will be modified.
[0033]
In the component supply device 58, the component supply table 78 is moved by the component supply table moving device 80, and the plurality of feeders 82 supply the component 90 with their component supply units sequentially positioned at the component supply position. In the feeder 82, the component feeder is operated each time the component 90 is supplied, and the component 90 to be supplied next is sent to the component supply unit.
[0034]
6 shows a plan view of the second mounting machine 14, FIG. 7 shows a side view, and FIG. 8 shows a component mounting apparatus and its periphery. The second mounting machine 14 mainly includes a work machine main body 150, a wiring board fixing device 152 that is provided in the work machine main body 150, and fixes the printed wiring board 52, and a front side of the wiring board fixing device 152 (FIG. 6). , A tray-type component supply device 156 disposed on the far side (upper side in FIG. 6) of the wiring board fixing device 152, and a mounting unit 158 for mounting components. And a head moving device provided on the work machine main body 150 to move the mounting unit 158 along a plane parallel to the printed wiring board 52 in a space above the two component supply devices 154 and 156 and the wiring board fixing device 152. The surface (mounting surface) of the printed wiring board 52 is moved by the XY robot device 160 together with the XY robot device 160 and the mounting unit 158. The image can be a CCD camera and the wiring board imaging device 162 to the imaging device, and a second mounting device controller 164 for controlling these devices (see Figure 9). The component mounting device 166 is configured by the mounting unit 158 and the XY robot device 160. This mounting machine is configured almost in the same manner as those described in Japanese Patent No. 2824378 and Japanese Patent Application Laid-Open No. 2001-223500, and a tray-type component supply device 156 is disclosed in Japanese Patent Publication No. 2-57719. And the mounting unit 158 is configured substantially the same as that described in Japanese Patent No. 30933339, and will be described only briefly here.
[0035]
The wiring board fixing device 152 is a device for fixing the printed wiring board 52 conveyed by the wiring board conveyor 170 as a wiring board conveying device at a substantially planned position for mounting work. The feeder-type component supply device 154 is configured such that a plurality of tape feeders 172 (hereinafter, abbreviated as feeders 172) are arranged on a component supply table 176 in the X-axis direction (the left-right direction in FIG. 6). The feeder 172 is configured similarly to the feeder 82, and a bar code is provided on each of the reels around which the feeder 172 and the taping electronic circuit component are wound. A plurality of trays 174 storing a plurality of components are stacked in the tray-type component supply device 156, and these trays 174 are sequentially moved so that the mounting unit 158 can take out components from each tray 174. Supply of parts.
[0036]
As shown in FIG. 8, the mounting unit 158 mainly holds the mounting unit main body 180 and a suction nozzle 182 as a component holder capable of suction-holding the component 90 at a distal end portion, and is rotatable with respect to the mounting unit main body 180. A mounting head 184 held so as to be able to move up and down, a mounting head elevating device 188 that raises and lowers the mounting head 184 by using an electric motor 186 as a driving source, and a mounting source 184 rotated around its axis by using an electric motor (not shown) as a driving source. And a mounting head rotating device 190 to be rotated. The mounting head 184 is moved up and down by the mounting head elevating device 188 at the component supply position and the component mounting position, and sucks and holds the component 90 or mounts the component 90 on the surface of the printed wiring board 52. The mounting head 184 is rotated around its own axis by the head rotating device 190 in order to correct the posture according to the holding posture of the held component 90. The suction nozzle 182 is connected to a negative pressure source (not shown), and suctions the component 90 by the negative pressure.
[0037]
As shown in FIG. 6, the XY robot device 160 includes an X slide 204 capable of moving in the X axis direction on the work machine main body 150, an X slide moving device 206 for moving the X slide 204 in the X axis direction, and a Y A Y slide 208 that can move in the axial direction and a Y slide moving device 210 that moves the Y slide 208 in the Y axis direction are provided. Each of the X slide moving device 206 and the Y slide moving device 210 has a servomotor as a driving source and has a ball screw mechanism. The mounting unit 158 is provided on the Y slide 208.
[0038]
The X slide 204 is provided with a component image pickup device 220 (see FIG. 9; only a reflection mirror 222 constituting the light guide device is shown in FIG. 9) using a CCD camera as an image pickup device. The component imaging device 220 captures an image of the component 90 held by the mounting head 184 when the mounting head 184 passes above the reflecting mirror 222. The obtained image data is processed by a component image processing unit 224 (see FIG. 9; included in the second mounting device control device 164), which is an image processing device, so that holding position error information of the component 90 is obtained. ing. The wiring board imaging device 162 is provided on the Y slide 208 and is moved by the XY robot device 160 so that an arbitrary position on the surface of the printed wiring board 52 can be imaged. The image data obtained by the wiring board imaging device 162 is processed by a wiring board image processing unit 226 (see FIG. 9, which is included in the second mounting machine control device 164) which is an image processing device. In the present embodiment, the reference mark provided on the printed wiring board 52 is imaged by the wiring board imaging device 162, and each positional error of the mounting point in the X-axis and Y-axis directions is obtained.
[0039]
FIG. 9 shows a block diagram of the second mounting machine control device 164 that controls the second mounting machine 14, focusing on parts that are deeply related to the present invention. The second mounting machine control device 164 is mainly composed of a computer 240 (hereinafter, referred to as a mounting control computer 240) having a CPU 230, a ROM 232, a RAM 234, an input / output interface 236, and a bus 238 connecting them. The input / output interface 236 is connected to the wiring board fixing device 152, the XY robot device 160, the feeder type component supply device 154, and the tray type via respective drive circuits 242 and control circuits 248 in the second mounting machine control device 164. The component supply device 156, the mounting head elevating device 188, the mounting head rotating device 190, and the display screen 250 are connected. Further, the component imaging device 220 is connected to the input / output interface 236 via the component image processing unit 224, and the wiring board imaging device 162 is connected via the wiring board image processing unit 226. Is obtained. Further, an input device 244 mainly including a keyboard for operating the second mounting machine 14 and a system control device 24 for controlling the entire system are connected. Further, a bar code reader 246 is connected. The ROM 232 stores a basic operation program of the second mounting machine 14 and the like, and the RAM 234 starts a program of a component mounting operation corresponding to the printed wiring board 52 to be operated, and stores the holding position error information. Etc. are stored.
[0040]
The operation of the mounting machine 14 in the mounting operation is substantially the same as that described in the above-mentioned Japanese Patent No. 2824378 and Japanese Patent Application Laid-Open No. 2001-223500, and will be described only briefly here.
[0041]
When mounting the component 90 on the printed wiring board 52, the mounting head 184 is moved by the XY robot device 160, the component 90 is taken out from the component supply device 154 or 156, and the printed wiring board fixed to the wiring board fixing device 152. Attach to 52 attachment points. After taking out the component 90 from the component supply devices 154 and 156, the component 90 is imaged by the component imaging device 220, and a holding position error is acquired. Among the holding position errors, the rotation position error is corrected by rotating the mounting head 184 by the mounting head rotating device 190, and the position error in the X-axis and Y-axis directions is corrected by correcting the moving position of the mounting head 184. Will be modified. At this time, the displacement of the reference point of the component 90 caused by the correction of the position error and the rotational position error in the X-axis and Y-axis directions of the mounting point obtained by imaging the reference mark of the printed wiring board 52 by the wiring board imaging device 162. Will be modified accordingly.
The operation of applying the creamy solder by the solder applicator 10 and the operation of soldering in the reflow furnace 16 are not directly related to the present invention, and therefore description thereof is omitted.
[0042]
The monitoring and maintenance center 6 will be described. As shown in FIG. 1, the monitoring and maintenance center 6 is provided with a monitoring computer 300 and a maintenance place 301. A storage device 302 is connected to the monitoring computer 300, and is configured to store monitoring-related information, which is information related to monitoring, and constitutes a monitoring-related information storage unit. The monitor computer 300 is also connected to a display screen 304 via a control circuit (not shown) and a barcode reader 306. The monitoring computer 300 and the like constitute an operation status monitoring system 310 (hereinafter, abbreviated as the monitoring system 310). In the maintenance place 301, jigs, parts, and the like necessary for maintenance of each component of the mounting machines 12, 14 are prepared. In the present embodiment, the monitoring system 310 for monitoring the operation status of the mounting machines 12 and 14 and the maintenance place 301 are provided in the same place. The monitoring system 310 may be provided in the maintenance place 301 or outside the maintenance place 301 in the monitoring / maintenance center 6. The monitoring-related information storage unit is not limited to the external storage device, and may be provided in the monitoring computer 300.
[0043]
The monitoring / maintenance center 6 is installed at a location distant from any of the plurality of factories 2 and away from all of the mounting machines 12 and 14, and performs intensive maintenance of the components of the mounting machines 12 and 14. In addition, the monitoring of the operation status of all the mounting machines 12 and 14 is intensively performed by one monitoring system 310 installed in a place away from the mounting machines 12 and 14. The monitoring computer 300 is connected via a communication line 312 to a host computer 26 of a system control device 24 for centrally managing each of the electronic circuit production systems 4 of the plurality of factories 2 to exchange information and the like. Has been.
[0044]
The monitoring system 310 monitors, in real time, the operating status of the mounting machines 12 and 14 constituting each of the electronic circuit production systems 4 of the plurality of factories 2, in this embodiment, the supply of the components 90 by the feeders 82 and 172. Therefore, the monitoring program II and the like shown in the flowchart of FIG. 11 are stored in the ROM of the monitoring computer 300.
[0045]
In this embodiment, the mounting machines 12 and 14 monitor the component supply by the mounting control computers 130 and 240, respectively, and the monitoring computer 300 monitors based on the monitoring result. Monitoring by the monitoring computer 300 is performed intensively for each of the mounting machines 12 and 14 in all the factories 2. First, monitoring of component supply of the mounting machine 12 of the electronic circuit production line 4 provided in one of the factories 2 will be described as a representative.
[0046]
The monitoring of component supply will be schematically described.
In the mounting machine 12, various operations are performed to mount the component 90 on the printed wiring board 52. In the mounting machine 12, when a series of mounting work is started, work-related information, which is information related to various works, is created. In the case of information on the supply of the component 90, the number of component supply times is counted for each feeder 82 that has supplied the component 90. If the information on component supply is supply error occurrence information, the number of supply error occurrences is counted for each feeder 82 that has supplied the component 90. When the number of component supply times for one feeder 82 is equal to or more than the set number of times, or when the number of supply mistakes is equal to or more than the set number of times, the feeder 82 has become unusable or used. It is highly probable that maintenance has been required, and the prohibition of use of the feeder 82 is transmitted to the monitoring computer 300. As a result, the monitoring computer 300 sets the use prohibition flag and stores the use prohibition of the feeder 82.
[0047]
The monitoring of component supply in the mounting machine 12 will be described in more detail based on the monitoring program I shown in FIG.
The monitoring program I is stored in the ROM 122 of the mounting control computer 130, and is repeatedly executed while the mounting operation is being performed in the mounting machine 12. In step 1 of the monitoring program I (hereinafter abbreviated as S1; the same applies to other steps), it is determined whether the work-related information created during the mounting work of the mounting machine 12 is information related to component supply. If the information is not component supply related information, the result of the determination in S1 is NO, and the execution of the routine ends. The work-related information is created, for example, every time any operation, detection, confirmation, or the like is performed in the mounting machine 12, and is stored in a predetermined storage area of the RAM 124 of the mounting control computer 130. In S1, the stored work-related information is read, and it is determined whether or not the work-related information is component supply-related information.
[0048]
Work related to component supply such as removal of the component 90 from the feeder 82 by the suction nozzle 92 is performed. If the read work-related information is component supply-related information, the determination result in S1 becomes YES and S2 is executed. Then, it is determined whether the component supply related information is the component supply information by the feeder 82 or not. If it is the component supply information, the result of the determination in S2 becomes YES and S3 is executed, and the count value C1 of the component supply number counter is incremented by one. The component supply information is created, for example, every time the suction nozzle 92 is moved up and down to perform one component removal operation.
[0049]
As shown in FIG. 15, the RAM 124 of the mounting control computer 130 is provided with a counter for counting the number of component supply times and a counter for counting the number of supply error occurrences for each of the plurality of feeders 82. The component supply number counter and the supply error occurrence number counter are stored in association with data specifying the feeder 82 that counts the component supply number and the supply error occurrence number, for example, the feeder ID. The feeder 82 that has supplied the component 90 increases the component supply count by one. The component supply information includes, for example, the feeder ID of the feeder 82 that has supplied the component 90 with the component supply unit positioned at the component supply position. The count value C1 of the component supply count counter corresponding to the feeder 82 is included in the component supply information. It is increased by one.
[0050]
The feeder ID is stored when the feeder 82 is mounted on the component supply table 78. When mounting the feeder 82 on the component supply table 78 according to the component mounting program, the type of the component 90 is confirmed as described later. Therefore, the barcode provided on the feeder 82 is read, and the feeder ID obtained thereby is stored in association with the component supply counter and the supply error counter. At this time, initial values are set for the count values C1 and C2 of both counters. The initial values are the number of parts supply performed by the feeder 82 in the past and the number of supply mistakes generated in the feeder 82, which are stored in the host computer 26 in association with the feeder ID and read from the host computer 26. Set.
[0051]
At the end of a series of component mounting operations in the first mounting machine 12, the count values C1 and C2 increased for each of the plurality of feeders 82 are sent from the mounting control computer 130 to the host computer 26, and the host computer 26 The component supply count and the supply error count stored in association with the feeder ID 82 are updated to the latest values. Accordingly, even when the same feeder 82 is used in a plurality of different mounting operations such as when mounting the component 90 on different types of printed wiring boards 52, the mounting machines 12 and 14 that supply the component 90 are also provided. Are different, the number of times of component supply and the number of times of supply error occurrence are counted in total and compared with the set value.
[0052]
When the feeder ID stored in the mounting control computer 130 in association with the counter becomes unnecessary, for example, a series of component mounting operations is completed, and the printed wiring board 52 on which the component 90 is mounted changes. When it is removed from the component supply table 78, it is deleted. The component supply number counter and the supply error occurrence number counter are reset after the count values C1 and C2 are transmitted to the host computer 26, and the feeder 82 mounted on the component supply table 78 for the next component mounting is set in the feeder. The ID and the like are stored.
[0053]
The data such as the component supply count stored for each of the plurality of feeders 82 is sent to the host computer 26 when the power of the first mounting machine 12 is turned off, for example, when the series of component mounting operations is completed. Stored and stored. When the power is also turned off in the host computer 26 as well, the data is stored and stored in a nonvolatile storage unit as needed. The non-volatile storage unit includes a storage unit that can perform writing and rewriting in addition to reading data. The non-volatile storage unit may be an internal storage unit of the host computer 26 or an external storage unit. The external storage unit includes, for example, a removable recording medium such as a flexible disk which can be attached to and detached from the computer, a magnetic tape, a magnetic disk, a magneto-optical disk and the like which can be read by a reader provided in the computer, and a hard disk. Etc. are included. When the power of the first mounting machine 12 is turned off, the data may be similarly stored in the mounting control computer 130.
[0054]
The host computer 26 has a feeder list. Each time a new feeder 82 or 172 is obtained in the factory 2, feeder information is input, and a list of all feeders in the factory 2 is created. The feeder information includes information for individually specifying a feeder, for example, a feeder ID, and the number of occurrences of component supply and the number of occurrences of supply error are stored in association with the feeder ID obtained from the feeder list. The number of occurrences of component supply and the number of occurrences of supply error are set to 0 when the feeders 82 and 172 are obtained.
[0055]
The component supply number counter and the supply error occurrence number counter may be provided in the host computer 26 for each of the plurality of feeders 82. In this case, in S3 and S8, an instruction to increase the count values C1 and C2 of the counter is output to the host computer 26, and in S4 and S9, the count value of the counter is read from the host computer 26 and compared with the set number of times. It will be. The host computer 26 may compare the count value with the set number of times.
[0056]
S3 to S5 and S8 to S10 are executed in common for all feeders 82 mounted on the component supply table 78. Therefore, the feeder 82 is identified by the feeder ID included in the component supply information, and S3 and the like are executed for the feeder 82 specified by the feeder ID.
[0057]
After execution of S3, S4 is executed, and it is determined whether or not the component supply number C1 has become equal to or greater than the set number Ca for the feeder 82 specified by the feeder ID included in the component supply information. The set number of times Ca is a number indicating a guideline of the expected service life of one feeder 82. For example, the type of the feeder 82 (for example, whether it is a tape feeder, a bulk feeder, or a stick feeder). ) Is set in advance. If the number of times of component supply C1 has not reached the set number of times Ca, the determination result in S4 is NO, and the execution of the routine ends.
[0058]
If the number of times C1 of component supply becomes equal to or greater than the set number Ca, the determination result of S4 becomes YES and S5 is executed, and information indicating that use of the corresponding feeder 82 should be prohibited is output to the host computer 26. The display screen 142 also displays the occurrence of a use-prohibited feeder due to the number of times of supply exceeding the set number, the feeder ID of the feeder 82 whose use is prohibited, the mounting position in the component supply table 78, and information for specifying the mounting machine. Is displayed. Based on the display, for example, the operator can send the feeder 82 whose use is prohibited to the monitoring and maintenance center 6. The display device configured to include the display screen 142 is a type of notification device and is also a maintenance instruction device. Further, the component supply number counter and the supply error occurrence number counter are reset to zero. The feeder ID of the use prohibition feeder 82 may be deleted in the mounting control computer 130.
[0059]
When the use prohibition information is sent from the mounting control computer 130, the host computer 26 transmits the use prohibition information to the monitoring computer 300 via the communication line 312. The use prohibition information includes information indicating use prohibition of the feeder 82 and information specifying the feeder 82 whose use is prohibited, for example, a feeder ID, a factory name where the feeder 82 is used, and the like. Also, the number of component supply times and the number of supply error occurrences stored in the host computer 26 in association with the feeder ID of the feeder 82 are reset to zero. In addition, in the mounting control computer 130, when the use prohibition feeder 82 occurs, the feeder 82 is prevented from being used for supplying the component 90.
[0060]
When the component 90 is supplied by the feeder 82, information as to whether or not the supply has been performed normally is created. In the present embodiment, whether or not the supply of the component 90 by the feeder 82 has been performed normally is determined by a program (not shown) different from the monitoring program I. As described above, in the mounting machine 12, after the suction nozzle 92 takes out the component 90 from the feeder 82, the component 90 is imaged by the component imaging device 102, and a holding position error is acquired based on the acquired image data. You. Therefore, for example, when the holding position error is obtained in the holding position error acquisition program, it is determined whether or not the component supply has been performed normally. For example, if the image of the component 90 has not been acquired even though the image of the component 90 has been taken, the component 90 can be sucked even though the suction nozzle 92 has performed the suction operation. It is said that there was no supply error. If the supply error occurs continuously for the set number of times for the same feeder 82 and the remaining number of the components 90 in the feeder 82 is equal to or greater than the set number, it is determined that the supply error has occurred instead of the component run-out in the feeder 82. , Supply error occurrence information is created. The supply error occurrence information includes the occurrence of the supply error, the feeder ID of the feeder 82 in which the supply error occurred, the mounting position, and the like. If an image of the component 90 has been acquired, normal supply information is created.
[0061]
If the normal supply information or the supply error occurrence information is created, the determination result of S1 is YES, the determination result of S2 is NO, and S6 is executed, and the information related to component supply is the normal supply information or the supply error occurrence. It is determined whether the information is information. If the information is normal supply information or supply error occurrence information, the determination result in S6 becomes YES, and S7 is executed to determine whether the component supply related information is supply error occurrence information. If the component supply has been performed normally, the determination result in S7 is NO, and the execution of the routine ends.
[0062]
If the component supply is not performed normally and a supply error occurs, the supply error occurrence information is created. Therefore, the determination result in S7 becomes YES, and the step S8 is executed to provide the feeder 82 in which the supply error has occurred. The count value C2 of the supplied error occurrence counter is incremented by one. Next, in S9, for the feeder 82 specified by the feeder ID included in the supply error occurrence information, it is determined whether or not the number of supply error occurrences C2 is equal to or greater than a set number of times Cb. Is NO, and the execution of the routine ends. Then, if the number of occurrences C2 of supply errors becomes equal to or greater than the set number Cb, the determination result of S9 becomes YES and S10 is executed. In S10, as in S5, information indicating that use of the corresponding feeder 82 should be prohibited is sent to the host computer 26. In addition, the component supply frequency counter and the supply error frequency counter are reset, and the use of the feeder 82 due to the occurrence of the supply error, the feeder ID of the feeder 82 whose use is prohibited, the display of the mounting position, and the like are performed. The host computer 26 transmits the use prohibition information to the monitoring computer 300 via the communication line 312.
[0063]
If the work-related information is the component supply-related information, but is not the component supply information or the information on whether or not the supply has been performed normally, the determination result in S6 is NO and S11 is executed. , For example, a process according to the content of the information is performed.
[0064]
In the monitoring computer 300, when information is transmitted from the factory 2, a monitoring program II shown in FIG. 11 is executed. In S21 of the monitoring program II, it is determined whether the information sent from the factory 2 is feeder use prohibition information. If the information is feeder use prohibition information, the result of the determination in S21 is YES and S22 is executed, and the use prohibition flag is set for the feeder 82 whose use is prohibited.
[0065]
As shown in FIG. 14, the storage device 302 connected to the monitoring computer 300 stores a feeder ID, a use prohibition flag, and a use prohibition flag set date and time for each of the feeders 82 and 172. I have. In the present embodiment, the feeders 82 and 172 are newly obtained in each of the plurality of factories 2 and transmitted to the monitoring computer 300 each time a feeder list is created and updated. The feeder ID is stored in the storage device 302 based on the list. The monitoring computer 300 has information on all the feeders 82 and 172 of all the factories 2.
[0066]
In the present embodiment, the storage device 302 stores the feeder ID and the like separately for each of a plurality of factories 2. In S22 of the monitoring program II, a storage area in which the corresponding feeder ID is stored is searched in the storage device 302 based on the factory name and the feeder ID included in the use prohibition information, and the use prohibition flag corresponding to the feeder ID is searched. Is set to 1 and the set date and time are stored. As described above, the mounting control computer 130 notifies the monitoring computer 300 each time the feeder 82 whose use is to be prohibited is detected, and the monitoring system 310 including the monitoring computer 300 allows the mounting system 12 to supply the component supply status. Will be monitored in real time. The monitoring program II is executed in common for a plurality of factories 2, but the feeder use prohibition information includes the factory name 2, and in the present embodiment, monitoring is performed by setting the feeders 82 and 172 for each factory 2. It is performed distinctively.
[0067]
In this way, the supply operation of the parts 90 is monitored, and if the use of the feeder 82 is prohibited according to the number of times of supply of the parts or the number of occurrences of the supply mistakes, the use of the feeder 82 becomes unusable or unusable. It is avoided that the feeder 82 likely to be used for supplying the component 90 is used. For example, if the type of the component 90 is confirmed when the feeder 82 is mounted on the component supply table 78 during the setup change, the use-prohibited feeder 82 is found at that time and is not used.
[0068]
When the feeder 82 is mounted on the component supply table 78, the operator inputs the mounting position of the feeder 82 on the component supply table 78 using the input device 134 and reads the barcode provided on the feeder 82 with the barcode reader 136. In the present embodiment, reels holding taping electronic circuit components are mounted on empty feeders 82 and 172 in advance, and the feeders are prepared so that the feeders 82 and 172 can be mounted on the component supply tables 78 and 176. At this time, the barcodes respectively provided on the feeders 82 and 172 and the reels are read by a barcode reader, and the feeder information and component information obtained thereby are stored in the nonvolatile storage area of the RAM of the host computer 26 in association with each other. Have been allowed. Therefore, the type of the component 90 supplied by the feeder 82 at the input mounting position is obtained from the feeder-component information and the feeder information obtained when the feeder 82 is mounted on the component supply table 78, and is created in advance. The type of the component 90 is confirmed based on whether or not the type of the component 90 is set in the component mounting data. The component mounting data includes data that associates the mounting position of the feeder with the component identification code of the electronic circuit component supplied at each of the plurality of mounting positions, and is created for each type of the printed wiring board 52.
[0069]
When the barcode of the feeder 82 is read, the obtained feeder ID is sent to the host computer 26, and the host computer 26 inquires the monitoring computer 300 of information on the feeder 82 based on the feeder ID. The monitoring computer 300 checks the data stored in the storage device 302 based on the factory 2 and the feeder ID that have been inquired, determines whether or not the use of the feeder 82 is prohibited, and sends the result to the host computer 26. Send. The host computer 26 sends the presence or absence of use prohibition to the mounting control computer 130, and causes the display screen 142 to display the information in association with the feeder ID and the like. Therefore, if the use is prohibited, the operator can stop using the feeder 82 and mount another feeder 82, etc., and the defective feeder 82 is mounted on the 90 is not supplied normally, and the occurrence of a situation where a defective printed circuit board is produced is avoided. The feeder ID or the like may be displayed only when the use is prohibited.
[0070]
The use-prohibited feeder 82 found at the time of mounting on the component supply table 78 and the feeder 82 whose use is prohibited at the time of mounting work are sent to the monitoring / maintenance center 6, where they are repaired, inspected, and replaced at the maintenance place 301. Etc. are performed. The use prohibition feeders 82 generated in any of the factories 2 are sent to the same monitoring and maintenance center 6, where repairs and the like are performed in a concentrated manner. In the present embodiment, the feeders 82 and 172 are dedicated to a plurality of factories 2 respectively, and maintenance is performed intensively on the feeders 82 and 172 of the plurality of factories 2. Are clearly distinguished by the factories 2 that have the maintenance, and maintenance is performed so as not to be mixed. For example, data that specifies the factory 2 that owns the feeder 82 is described on the feeder 82. This notation may be performed in the factory 2 or in the monitoring and maintenance center 6. As a result of the inspection, the feeder 82, which has no abnormality and can be used for supplying the component 90, or has been made available for repair or the like, is sent from the monitoring and maintenance center 6 in accordance with the factory name indicated on the feeder 82. It is sent back to the original factory 2 where it is held and used.
[0071]
With respect to the feeder 82 that can be reused, the use prohibition is released. This release is performed according to the use prohibition release program shown in FIG. In the monitoring / maintenance center 6, for example, when a plurality of feeders 82 for canceling the use prohibition are accumulated, the operator performs an operation for canceling the use prohibition. This operation is performed by inputting execution of release of use prohibition to the monitoring computer 300 and reading the barcode of the feeder 82 for releasing use prohibition by the barcode reader 306.
[0072]
The use prohibition release program is executed by the execution prohibition release execution input, and it is determined in S31 whether a feeder ID has been input. If the barcode provided on the feeder 82 is read and the feeder ID is obtained, the determination result of S31 becomes YES, and S32 is executed, and the use prohibition is released. In the storage device 302, the use prohibition flag corresponding to the feeder ID obtained by reading the barcode is reset. Also, the use prohibition flag set date and time is cleared. As a result, the feeder 82 is sent back to the factory 2 and can be used for supplying the parts 90 without being prohibited from being used when it is used.
[0073]
Next, S33 is executed, and it is determined whether or not there is a feeder 82 whose elapsed time since the use was prohibited exceeds the set time among the feeders 82 currently prohibited from use. The elapsed time is obtained from the use prohibition flag set date and time and the current date and time of the data stored for the use prohibition feeder 82, and it is determined whether or not the set time is exceeded. This determination is made for the feeder 82 for which the use prohibition flag is set among all the feeders 82 stored in the storage device 302. If there is a feeder 82 exceeding the set time, the determination result in S33 becomes YES. S34 is executed and a notification is issued. For example, information on the feeder 82 exceeding the set time is sent to the host computer 26 of the factory 2 where the feeder 82 was used to supply the parts 90, and is displayed on the display screen 304. As a result, the operator of the monitoring and maintenance center 6 performs maintenance on the feeder 82 if the monitoring and maintenance center 6 has a feeder 82 whose use-prohibited time exceeds the set time. In the factory 2, for example, the display screen controlled by the host computer 26 includes a feeder 82 whose use is prohibited but whose maintenance is not completed, a feeder ID of the feeder 82 and a monitoring / maintenance center of the feeder 82. 6 is displayed. These may be displayed on the display screens 142 and 250 of the mounting machines 12 and 14. The execution of the use prohibition release program is terminated based on, for example, an input of use prohibition release end. Note that S33 and S34 of the use prohibition release program may be performed separately from release of use prohibition. For example, a maintenance execution confirmation program including steps corresponding to S33 and S34 is created and executed at set time intervals.
[0074]
The operator of the monitoring and maintenance center 6 inputs the feeder 82 that has been repaired but could not be repaired to the monitoring computer 300, if any. The non-repairable processing program shown in FIG. 13 is executed based on an instruction from the operator to execute an unrepairable feeder input, and in S41, it is determined whether a feeder ID has been input. When the operator reads the barcode provided on the unrepairable feeder, the feeder ID is obtained, the determination result in S41 becomes YES, and S42 is executed. In S42, of the data stored in the storage device 302, data on the unrepairable feeder is searched based on the input feeder ID, and the data, that is, the feeder ID and the use prohibition flag set date and time are deleted. , The use prohibition flag is reset. Unrepairable information, for example, information indicating that the unusable feeder 82 is unrepairable, the feeder ID of the unrepairable feeder 82, and the like are transmitted to the host computer 26 of the factory 2 where the unrepairable feeder 82 was used, and the operator is notified. To be done. The host computer 26 deletes the data related to the unrepairable feeder 82 in the feeder list based on the unrepairable information, deletes the part information and the feeder information associated with each other, and further deletes the data associated with the feeder ID. Deleted component supply frequency and supply error occurrence frequency are deleted. Unrepairable data may be stored in association with the deletion. The execution of the non-repairable processing program ends based on, for example, an input of the non-repairable processing end.
[0075]
Although the description is omitted, monitoring of component supply by the feeder-type component supply device 154 in the second mounting machine 14 is performed in the same manner as monitoring of component supply in the first mounting machine 12.
[0076]
As is clear from the above description, in the present embodiment, the part executing S22 of the monitoring computer 300 constitutes a use prohibition unit, the part executing S32 constitutes a use prohibition canceling unit, and executes S33. The part constitutes a maintenance execution confirmation unit, and the part executing S34 constitutes a maintenance prompting unit.
[0077]
In the above-described embodiment, the information transmitted from the host computer 26 to the monitoring computer 300 includes the factory name, and the storage device 302 stores the feeder information and the factory where the feeder is used to supply the electronic circuit components. The monitoring is performed for each factory, and the monitoring is performed by distinguishing the feeder 82 by the factory. However, it is not essential that the monitoring is performed by distinguishing the factory by the factory, and the storage of the factory name is not essential. In this case, when information about the feeder is transmitted from the monitoring computer to the host computer of the factory, if the transmission partner is not determined, for example, the use prohibition of the use prohibition feeder is released and the use prohibition release information is transmitted, the use prohibition is prohibited. Release information is output to all of a plurality of factories. The same applies when an unrepairable feeder occurs. Thus, for example, at a factory where the feeder whose use prohibition has been released is used, it is understood that use prohibition has been released for that feeder.
[0078]
Further, at the time of a change in the setup, information regarding the prohibition of use of all the feeders 82 and the like mounted on the component supply table 78 and the like is supplied from the monitoring system 310 to the host computer 26. It may be determined whether or not the operation has been performed.
[0079]
In the above embodiment, the monitoring system is provided at a location remote from the factory, but may be provided at the factory. For example, a monitoring system is provided in each of a plurality of factories. When a plurality of electronic circuit production systems are provided in a plurality of factories, respectively, a system control device is provided for each of the electronic circuit production systems, and at least a plurality of system control devices are provided to monitor the operation status of the mounting machine. A general control device that supervises the above is provided. This general control device is configured to include a computer, and forms a monitoring system. The monitoring system may be installed at a location distant from all of the plurality of electronic circuit production systems, may be installed at a location away from all of the mounting machines, and may be provided together with one of the plurality of electronic circuit production systems, and You may install together with the mounting machine of an electronic circuit production system. When a plurality of electronic circuit production systems are provided, the feeder is often shared by the plurality of electronic circuit systems. The feeder is shared for a plurality of electronic circuit production systems in the same factory, but if each of the plurality of factories is dedicated, a computer of the monitoring system is used in the factory where the monitoring system is provided. A list is created and stored for all feeders used. If the monitoring system monitors, for example, the supply of electronic circuit components by the feeder, the use-prohibited feeder is detected in the mounting machine as in the above-described embodiment, and the use-prohibited information is sent to the host computer, and Sent to the surveillance system and stored. Thereby, the supply of the electronic circuit components is monitored in real time. In addition, information on use prohibition (presence of use prohibition, date and time of prohibition of use, etc.) is stored for each feeder, and the use of a feeder that has become unusable or that is likely to be unusable is used. In addition to the prohibition, the number of component supply and the number of supply error occurrence are stored when a series of mounting work is completed. Therefore, when the feeder is mounted on the component supply table in the mounting machines of a plurality of electronic circuit production systems and the type of the electronic circuit component is checked, it is determined whether the feeder is a use prohibited feeder or not. From the monitoring system via the host computer to prevent the use prohibited feeder from being used for supplying electronic circuit components. Also, the number of component supply times and the number of supply error occurrence times of the mounted feeder are referred to the monitoring system, and an initial value is set. At the time of setup change, information about all feeders used for supplying electronic circuit components is supplied from the monitoring system to the mounting control computer via the host computer, and it is determined whether the feeder is a prohibited feeder based on the information. You may do so. In any case, the use prohibition feeder is sent to the maintenance center based on the display of the use prohibition information or the like. The maintenance center is provided in common among a plurality of factories, and maintenance is performed intensively. In the maintenance center, for example, a computer is provided and connected to a computer of each monitoring system of a plurality of factories by a communication line. As a result of the maintenance, the feeder that can be used is provided with information to that effect. Send it to the surveillance system so that use prohibition is released. If an unrepairable feeder occurs, information to that effect is sent to the monitoring system so that information about the feeder is deleted from the list. In the maintenance center, for example, the input of the feeder whose use prohibition is canceled and the input of the unrepairable feeder are performed in the same manner as in the above-described embodiment, and the information is sent to the computer of the monitoring system. In the monitoring system, a maintenance execution confirmation and a maintenance prompt are performed. In the case where the number of electronic circuit production systems provided in the factory is one, for example, a host computer may be used as a monitoring computer to configure the monitoring system.
[0080]
The feeder may be shared by a plurality of factories. In this case, a common monitoring system is provided in a plurality of factories, and the supply of components in the mounting machines in all factories is monitored intensively. In this case, the monitoring system may be provided with one of the factories or at a location remote from all factories. It may be provided together with the maintenance center or separately. This shared monitoring system or centralized monitoring system is made to have information about all feeders used in all factories, and for example, monitors the supply of electronic circuit components by feeders in the same manner as the monitoring system 310. When the setup is changed in the mounting machine, for example, the presence or absence of the use prohibition of the feeder may be checked as in the above-described embodiment, or the use of the feeder necessary for supplying the electronic circuit components may be performed at the time of the setup change. Information regarding the prohibition may be sent to the host computer of the factory, and the presence or absence of the use prohibition of the feeder may be determined based on the information.
When a plurality of electronic circuit production systems are provided in one factory, information may be transmitted and received by connecting a host computer provided for each production system and a common monitoring system. A system may be provided, and the individual monitoring system and the shared monitoring system may be connected to transmit and receive information. The individual monitoring system centrally manages all feeders used in the factory where the individual monitoring system is installed, and centrally monitors the supply of electronic circuit components by a plurality of mounting machines. If the use prohibition feeder is generated during the mounting work of the electronic circuit parts, the use prohibition information is sent from the individual monitoring system to the common monitoring system, and if the prohibition is released, the information to that effect is sent from the common monitoring system to the common monitoring system. Sent to the individual monitoring system. At the time of the setup change, the individual monitoring system is inquired about whether or not the use of the feeder is prohibited, or information about the feeder used for supplying the electronic circuit components is supplied from the individual monitoring system to the host computer and the mounting control computer. Information about all feeders shared by a plurality of factories may be supplied from the shared monitoring system to the individual monitoring system, and may be used in each factory to determine whether to prohibit use of the feeders when changing the mounting machine. .
[0081]
When a component such as a feeder is shared by a plurality of factories, maintenance is performed at a maintenance center without discriminating the component between factories. In this case, the feeder whose use prohibition has been canceled due to maintenance is not always returned to the factory where the product was sent. Therefore, at the factory, if the feeder sent from the maintenance center is not registered in the feeder list, Then, information on whether or not use of the feeder is prohibited is obtained. The feeder whose use prohibition has been released is sent from the maintenance center to the factory, for example, in response to a request for replenishment of the feeder from the factory. When sending information about the feeder from the centralized monitoring system to the factory host computer or individual monitoring system, or from the maintenance center to the factory monitoring system, if the factory to which the feeder belongs is unknown, send the information to all factories. Good.
[0082]
Furthermore, the use prohibition information may be stored in the component itself whose driving situation is monitored. For example, a rewritable information storage unit such as a computer and a tag chip is provided as a component to store the use prohibition or erase the use prohibition storage so that the use prohibition is released. A tag chip is usually configured in a chip shape including a memory for storing information, a communication circuit, and a logic circuit connecting the memory and the communication circuit, and can store a large amount of information while being small. Communication is performed with a reader such as a reader / writer, and information stored in the memory is read. Alternatively, the use prohibition may be mechanically stored by operating a switch, attaching a seal, or the like, and the storage may be canceled. The switches and the like constitute a mechanical information storage unit. It suffices that the determination device automatically stores whether or not the use of the constituent element is prohibited by the determination device. The storage of the use prohibition information in the information storage unit provided in the component and the erasure of the stored information may be performed, for example, in a maintenance center or in a factory.
[0083]
Furthermore, in the above-described embodiment, the number of component supply and the number of supply error occurrences by the feeder are counted in the mounting control computer, and it is highly likely that the feeder has become unusable or unusable. Although the above-described determination is performed, the counting and the determination may be performed in the monitoring system. The operating status of the mounting machine may be sent to the monitoring system one by one, and the monitoring may be performed. Only the determination may be performed in the monitoring system.
[0084]
In the above embodiment, the electronic circuit production system is a system including two mounting machines, but may be a system including three or more mounting machines.
[0085]
In the above embodiment, the component of the mounting machine whose operation status is monitored is a component feeder. However, the component is not limited to the component feeder, and may be, for example, a mounting head system, a recognition unit, a servo system, or the like. The mounting head system includes, for example, a suction nozzle and a holder, the recognition unit includes an imaging device, and the servo system includes a servomotor, a ball screw mechanism, and the like. If it is a component that is detachably provided in the mounting machine, maintenance is intensively performed for multiple factories, and even if the maintenance center is provided separately from the factory, the operation is monitored and if necessary, It is easy to remove from the mounting machine and send it to the maintenance center for maintenance.
[0086]
As described above, some embodiments of the present invention have been described in detail. However, these are merely examples, and the present invention has been described in the section [Problems to be Solved by the Invention, Problem Solving Means and Effects]. Various modifications and improvements can be made based on the knowledge of those skilled in the art, including the embodiments.
[Brief description of the drawings]
FIG. 1 is a diagram schematically showing a monitoring / maintenance center and the like including an operation status monitoring system according to an embodiment of the present invention.
FIG. 2 is a diagram showing an electronic circuit production system in which an operation status is monitored by the operation status monitoring system.
FIG. 3 is a plan view showing a first mounting machine of the electronic circuit production system.
FIG. 4 is a partial side sectional view showing the component mounting device of the first mounting machine in an enlarged manner.
FIG. 5 is a block diagram showing a control device of the first mounting machine.
FIG. 6 is a plan view showing a second mounting machine of the electronic circuit production system.
FIG. 7 is a side view showing the second mounting machine.
FIG. 8 is an enlarged front view showing a main part of the second mounting machine.
FIG. 9 is a block diagram showing a control device of the second mounting machine.
FIG. 10 is a flowchart showing a monitoring program I executed by a control device of the first mounting machine.
FIG. 11 is a flowchart showing a monitoring program II executed by a monitoring computer of the operation status monitoring system.
FIG. 12 is a flowchart showing a use prohibition canceling program executed by the monitoring computer.
FIG. 13 is a flowchart showing a non-repairable processing program executed by the monitoring computer.
FIG. 14 is a diagram schematically showing a configuration of a storage device in which data is stored at the time of component supply monitoring by the monitoring computer.
FIG. 15 is a diagram schematically showing a configuration of a memory in which data is stored at the time of component supply monitoring by a mounting control computer of the first mounting machine.
[Explanation of symbols]
2: Factory 6: Monitoring and maintenance center 12, 14: Electronic circuit component mounter 24: System controller 26: Host computer 52: Printed wiring board 64: First mounter controller 82: Tape feeder 88: Mounting head 90: Electronic circuit components 92: suction nozzle 130: mounting control computer 164: second mounting machine control device 172: tape feeder 182: suction nozzle 184: mounting head 300: monitoring computer 310: operation status monitoring system 312: communication line

Claims (7)

A maintenance method for an electronic circuit component mounter, comprising: intensively maintaining components of a plurality of electronic circuit component mounters installed in a plurality of factories, each of which mounts an electronic circuit component on a circuit board. The operating status of the plurality of electronic circuit component mounters is monitored in real time by a monitoring system installed at a location distant from at least one of the electronic circuit component mounters. Maintenance method for electronic circuit component mounters. If the component has become unusable or likely to have become unusable, the monitoring system is prohibited from using the component, and the component is prohibited from being used. 3. The maintenance method for an electronic circuit component mounting machine according to claim 2, wherein when the device is returned to a usable state by performing maintenance, the monitoring system releases the prohibition of use. 4. The component according to claim 1, wherein the component includes at least a component feeder that accommodates a large number of electronic circuit components and sequentially supplies the electronic circuit components one by one from a predetermined component supply unit. The maintenance method of the electronic circuit component mounter according to any one of the above. A method for performing maintenance of components of an electronic circuit component mounter that mounts electronic circuit components on a circuit board,
If the component has become unusable or likely to be unusable, the monitoring system is prohibited from using the component, and the component is used by performing maintenance. A maintenance method for an electronic circuit component mounting machine, wherein a prohibition of use is released by a monitoring system when the state is returned to a possible state. The monitoring of the operation status of a plurality of electronic circuit component mounters, each of which mounts electronic circuit components on a circuit board, is centralized by a monitoring system installed at a location distant from at least one of the electronic circuit component mounters. A component feeder for accommodating a large number of electronic circuit components of the electronic circuit component mounter and sequentially supplying the electronic circuit components one by one from a predetermined component supply unit has become unusable. A method for monitoring the operation status of an electronic circuit component mounter, comprising: prohibiting the use of the component feeder by the monitoring system when it is highly probable that the component feeder cannot be used. Each of the plurality of electronic circuit component mounters, which mounts electronic circuit components on a circuit board, is installed at a location separated from at least one of the plurality of electronic circuit component mounters, and supports electronic circuit production by the plurality of electronic circuit component mounters. A circuit production support system,
A component feeder of the electronic circuit component mounter, which accommodates a large number of electronic circuit components and sequentially supplies the electronic circuit components one by one from a predetermined component supply unit, has become unusable or has become unusable. If it is highly probable that it has become intolerable, it includes a use prohibition unit that prohibits the use of the component feeder, and the use prohibition unit has at least one of the number of times the component is used and a malfunction, An electronic circuit production support system for prohibiting the use of a component when an error occurs under a condition exceeding a preset condition.

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