KR102127305B1 - Method for monitoring operation of component mounter - Google Patents

Abstract

The method for monitoring the operation of the component mounting machine of the present invention includes steps (a) to (c). In step (a), each time a part discard operation occurs, a part loss ratio is calculated for each head, nozzle, and slot for supplying parts corresponding to the part discard operation. In step (b), an identification mark icon of a head or a nozzle or slot for supplying a component is displayed in which the component loss ratio exceeds the limit loss ratio. In step (c), among the heads or nozzles or parts supply slots associated with the displayed head or nozzle or parts supply slot, the identification code of the head or nozzle or part supply slot having the highest part loss ratio. The icon is displayed.

Description

Method for monitoring operation of component mounter

The present invention relates to a method for monitoring the operation of the component mounting machine, and more particularly, to monitor the operation of the component mounting machine having a plurality of heads, a plurality of nozzles, and a plurality of slots for supplying parts. It's about how.

The component mounter includes a plurality of heads, a plurality of nozzles, and a plurality of slots for supplying components, and selectively uses them. Here, a mounting program in which the execution order of the operation steps is optimized is executed.

In the component mounting machine as described above, since the operation of the component mounting machine cannot be perfect, a component discarding operation is allowed. If the part discard operation is not allowed, the progress of the part mounting operation will be almost impossible. The part discard operation is performed in two cases.

First, when the nozzle cannot pick up the part normally, the part discard operation occurs.

Second, after the nozzle picks up the component normally, in the process of moving to the designated position of the printed circuit board, the component is discarded when the component is distorted. Here, the distortion of the parts is determined by a line scan camera.

The ratio of the number of part discard operations to the total number of pickups, ie the part loss ratio, is monitored.

In the above component mounting machine, conventionally, the component loss ratio is monitored for each head. When the part loss ratio of one head exceeds the limit loss ratio, an alarm signal is generated, the identification code of the head is displayed based on text, and the operation of the component mounter by an interlock function This ends. Accordingly, the diagnosis of the component mounting machine is started by an operator or a technician.

According to the above-described monitoring method of the component mounting machine, after the operation of the component mounting machine is completed, the operator or the technician can know only the head whose component loss ratio exceeds the limit loss ratio. However, not only the head, but also the related nozzle or slot for supplying parts may cause the part to be discarded. Therefore, it takes a relatively long time for the operator or technician to diagnose the cause of the increase in the part loss ratio.

Korean Registered Patent No. 1153491 (Applicant: Hitachi High-Tech Instruments Co., Ltd.; name; check method for component mounting error, and check system for component mounting error).

An embodiment of the present invention, in a method for monitoring the operation of the component mounting machine, it is intended to provide a method that allows a worker or technician to take a relatively short time to diagnose the cause of the increase in the component loss ratio.

According to an aspect of the present invention, in a method for monitoring the operation of a component mounting machine having a plurality of heads, a plurality of nozzles, and a plurality of component supply slots, steps (a) to (c) are performed. Includes.

In the step (a), each time a part discard operation occurs, a part loss ratio is calculated for each head, nozzle, and slot for supplying parts corresponding to the part discard operation.

In step (b), an identification code icon of a head or a nozzle or a slot for supplying parts is displayed in which the part loss ratio exceeds the limit loss ratio.

In step (c), among the heads or nozzles or parts supply slots associated with the displayed head or nozzle or parts supply slot, identification of the head or nozzle or part supply slot having the highest part loss ratio The sign icon is displayed.

According to the method for monitoring the operation of the component mounting machine according to the embodiment of the present invention, an operator or a technician may not only a head having a component loss ratio exceeding a limit loss ratio, but also a nozzle or component whose component loss ratio exceeds the limit loss ratio. Even supply slots are immediately visible. Furthermore, among the heads or nozzles or parts supply slots associated with the head or nozzle or parts supply slot, the head or nozzle or part supply slot having the highest part loss ratio can be immediately recognized.

Thus, it is possible for a worker or technician to take a relatively short time to diagnose the cause of the increase in the part loss ratio.

1 is a view showing the internal configuration of a component mounting machine to which the method of an embodiment of the present invention is applied.
FIG. 2 is a diagram illustrating an example of icons of a plurality of heads displayed on a monitor when the component mounting machine of FIG. 1 has four mounting regions.
FIG. 3 is a diagram illustrating an example of icons of a plurality of nozzles displayed on a monitor when the component mounting machine of FIG. 1 has four mounting regions.
FIG. 4 is a diagram illustrating an example of icons of slots for supplying a plurality of components displayed on a monitor when the component mounting machine of FIG. 1 has four mounting regions.
5 shows identification icons of a selected head, nozzles used by the selected head, and slots for supplying parts used by the nozzles when a head is selected by the user on the screen of FIG. 2.
FIG. 6 shows an identification code icon of a selected part supply slot, nozzles used for a selected part supply slot, and heads using the nozzles when a part supply slot is selected by a user on the screen of FIG. 4. Show them.
FIG. 7 shows identification code icons of a selected nozzle, a head using the selected nozzle, and slots for supplying parts used by the selected nozzle when a nozzle is selected by the user on the screen of FIG. 3.
8 is a flowchart showing a monitoring method of the present embodiment performed by the main control unit and monitoring device of FIG. 1.
FIG. 9 is a flowchart showing the detailed operation of steps S809 and S811 of FIG. 8 when the part loss ratio of one head exceeds the limit loss ratio.
FIG. 10 is a view showing an example of a screen displayed on a monitor by the operation of FIG. 9.
FIG. 11 is a flowchart showing detailed operations of steps S809 and S811 of FIG. 8 when a part loss ratio of a slot for supplying a part exceeds a limit loss ratio.
12 is a diagram illustrating an example of a screen displayed on a monitor by the operation of FIG. 11.
13 is a flow chart showing the detailed operation of steps S809 and S811 of FIG. 8 when the part loss ratio of one nozzle exceeds the limit loss ratio.
14 is a diagram illustrating an example of a screen displayed on a monitor by the operation of FIG. 13.

The following description and the accompanying drawings are intended to understand the operation according to the present invention, and portions that can be easily implemented by those skilled in the art may be omitted.

The specification and drawings are not provided for the purpose of limiting the invention, and the scope of the invention should be defined by the claims. The terms used in this specification should be interpreted as meanings and concepts consistent with the technical spirit of the present invention in order to best represent the present invention.

In describing the present invention, when it is determined that detailed descriptions of related known technologies may obscure the subject matter of the present invention, the detailed descriptions are omitted.

The present invention can be represented by functional block configurations and various processing steps. These functional blocks can be implemented in various hardware and/or software configurations that perform specific functions. For example, the present invention may be implemented in a programming language such as C, C++, Java, assembler, or a scripting language.

In addition, the present invention may employ conventional techniques for electronic environment setting, signal processing, and/or data processing.

In the present specification and drawings, the same reference numerals are assigned to components having substantially the same functional configuration to omit redundant description.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 shows the internal configuration of a component mounting machine 10 to which the method of an embodiment of the present invention is applied. The method of an embodiment of the present invention is performed by the main control unit 101 and the monitoring device 11 communicating with each other. However, it may be performed alone by the main control unit 101.

Referring to FIG. 1, the component mounting unit 10 to which the monitoring method according to the present invention is applied includes a driving unit 102, a line scan camera (C), an image processing unit 103, a main control unit 101, and a monitor 104 Is provided.

The driving unit 102 selectively drives any one head H among a plurality of heads. The line scan camera C captures a component P, for example, an integrated circuit element, that is adsorbed and moved by the nozzle N of the head H. The image processing unit 103 processes image data from the line scan camera C to generate location information of the component P.

The main control unit 101 controls the driving unit 102 according to the operation information from the driving unit 102 and the position information from the image processing unit 103.

A nozzle N is selectively attached to the head H of the component mounter, and the component P, for example, an integrated circuit element, is adsorbed and mounted by a pressure change in the nozzle N.

The line scan camera C is located on a common path of the head H, and images the component P adsorbed by the nozzle N and outputs image data. That is, as the component P passes through the line scan camera C, the line scan camera C outputs continuous line image data. The image data from the line scan camera C is provided to the image processing unit 103, and image frames are captured in the image processing unit 103. Here, in order to ensure that the illuminance of the illumination system I combined with the line scan camera C is uniform for all imaging areas of the line scan camera C, the illumination system I has a plurality of light sources, for example, 3 Light Emitting Diodes are arranged.

The monitoring device 11 performs the method of an embodiment of the present invention together with the main control unit 101. Content related to this will be described in detail with reference to FIGS. 2 to 14.

FIG. 2 shows icons of a plurality of heads displayed on a monitor (104 in FIG. 1) when the component mounting machine 10 of FIG. 1 has four mounting regions 1F, 1R, 2F, and 2R. Here is an example.

Referring to FIG. 2, the printed circuit board(s) enters the first front region 1F and/or the first rear region 1R, and the second front region 2F and/or the second rear region ( 2R). Each of the four mounting regions 1F, 1R, 2F, and 2R is provided with 16 heads and is used selectively.

When the user clicks an icon of a head on the screen, information related to the head is displayed in a tree structure (see FIG. 5).

FIG. 3 shows icons of a plurality of nozzles displayed on a monitor (104 in FIG. 1) when the component mounting machine 10 of FIG. 1 has four mounting regions 1F, 1R, 2F, and 2R. Here is an example.

Referring to FIG. 3, the printed circuit board(s) enters the first front region 1F and/or the first rear region 1R, and the second front region 2F and/or the second rear region ( 2R). Each of the four mounting areas 1F, 1R, 2F, and 2R is provided with 32 nozzles and is used selectively.

When the user clicks an icon of a nozzle on the screen, information related to the nozzle is displayed as a tree structure (see FIG. 7 ).

4 is a slot for supplying a plurality of components displayed on a monitor (104 in FIG. 1) when the component mounting machine 10 of FIG. 1 has four mounting regions 1F, 1R, 2F, and 2R. Here is an example of the icons of the people.

Referring to FIG. 4, the printed circuit board(s) enters the first front region 1F and/or the first rear region 1R, and the second front region 2F and/or the second rear region ( 2R). 30 slots are provided in each of the 4 mounting regions 1F, 1R, 2F, and 2R, and are selectively used. Each slot has its own part.

When a user selects a slot for supplying a part on the screen, information related to the slot for supplying the part is displayed in a tree structure (see FIG. 6).

FIG. 5 shows identification icons of a selected head, nozzles used by the selected head, and slots for supplying parts used by the nozzles when a head is selected by the user on the screen of FIG. 2. Here, the part codes are displayed under the identification code icons of the slots for supplying parts.

Referring to FIG. 5, the identification code icon 501 includes an icon shape 501i, an identification code (eg, 1F-11) and a component loss ratio (eg, 0.7).

Accordingly, the user can immediately know the information of the nozzles associated with any one head, slots for supplying components, and components.

FIG. 6 shows an identification code icon of a selected part supply slot, nozzles used for a selected part supply slot, and heads using the nozzles when a part supply slot is selected by a user on the screen of FIG. 4. Show them.

Referring to FIG. 6, the identification code icon 601 includes an icon shape 601i, an identification code (eg, S29), and a component loss ratio (eg, 1.2).

Accordingly, the user can immediately know the information of the nozzles and heads associated with the slot for supplying any one component.

FIG. 7 shows identification code icons of a selected nozzle, a head using the selected nozzle, and slots for supplying parts used by the selected nozzle when a nozzle is selected by the user on the screen of FIG. 3. Here, the part codes are displayed under the identification code icons of the slots for supplying parts.

Referring to FIG. 7, the identification icon 701 includes an icon shape 701i, an identification code (eg, N04), and a component loss ratio (eg, 0.3).

Accordingly, the user can immediately know the information of the head(s) associated with any one nozzle, slots for supplying components, and components.

FIG. 8 is a flowchart showing a monitoring method of the present embodiment performed by the main control unit 101 and the monitoring device 11 of FIG. 1. This will be described with reference to FIGS. 1 and 8.

If a part discard operation has occurred (step S801), the monitoring device 11 calculates a part loss ratio for each head, nozzle, and slot for supplying parts corresponding to the part discard operation (step S803).

Next, the monitoring apparatus 11 judges whether there is a head or a nozzle or a slot for supplying parts whose part loss ratio exceeds the limit loss ratio (step S805).

If there is a head or a nozzle or a slot for supplying parts with a part loss ratio exceeding a limit loss ratio, the monitoring device 11 provides relevant information to the main control unit 101, and the main control unit 101 follows steps S807 To S811.

In step S807, the main control unit 101 generates an alarm sound.

Next, the main control unit 101 displays the identification code icon of the corresponding head or nozzle or slot for supplying the component on the monitor 104 (step S809).

In addition, the main control unit 101, among the heads or nozzles or parts supply slots associated with the displayed head or nozzle or parts supply slot, the head or nozzle or parts supply slot having the highest part loss ratio The identification code icon of is displayed on the monitor 104 (step S811).

All of the above steps (S801 to S811) are repeatedly performed until an end signal is generated (step S813).

According to the method for monitoring the operation of the component mounting machine 10 as described above, the operator or technician is not only a head in which the component loss ratio exceeds the limit loss ratio, but also a nozzle or component in which the component loss ratio exceeds the limit loss ratio. Even supply slots are immediately visible. Furthermore, among the heads or nozzles or parts supply slots associated with the head or nozzle or parts supply slot, the head or nozzle or part supply slot having the highest part loss ratio can be immediately recognized.

Thus, it is possible for a worker or technician to take a relatively short time to diagnose the cause of the increase in the part loss ratio.

FIG. 9 shows the detailed operation of steps S809 and S811 of FIG. 8 when the part loss ratio of one head exceeds the limit loss ratio.

10 shows an example of a screen displayed on a monitor (104 in FIG. 1) by the operation of FIG. In Fig. 10, reference numerals 1001, 1002, and 1003 denote identification icons, and 1001i denotes an icon shape. For example, the identification code icon 1001 includes an icon shape 1001i, an identification code 1F-11, and a component loss ratio (0.7%).

1, 9 and 10, when the part loss ratio of one head exceeds the limit loss ratio, the detailed operation of steps S809 and S811 of FIG. 8 will be described as follows.

First, the main control unit 101 displays on the monitor 104 the identification code icon 1001 of any head whose part loss ratio exceeds the limit loss ratio (step S901).

Next, the main control unit 101 displays the identification code icons 1002 and the like of the nozzles operated with the displayed head to be connected to the identification code icon 1001 of the displayed head (step S903).

Next, the main control unit 101 allows the identification code icons 1003 and the like of the slots for supplying parts used by each of the displayed nozzles to be connected with the identification icon 1002 and the like of each of the displayed nozzles. It is displayed (step S905).

In addition, the main control unit 101, the identification code icon 1003 of the slot for supplying the highest component loss ratio among the slots for supplying parts, the identification code of the nozzle having the highest part loss ratio among the displayed nozzles The lines connected between the icon 1002 and the icon 1001 of the displayed head are displayed to be activated (step S907).

11 shows a detailed operation of steps S809 and S811 of FIG. 8 when a part loss ratio of a slot for supplying a part exceeds a limit loss ratio.

FIG. 12 shows an example of a screen displayed on a monitor by the operation of FIG. 11. In Fig. 12, reference numerals 1201, 1202, and 1203 denote identification icons, and 1201i denotes an icon shape. For example, the identification code icon 1201 includes an icon shape 1201i, an identification code S29, and a component loss ratio (1.2%).

1, 11 and 12, when the part loss ratio of the slot for supplying any part exceeds the limit loss rate, the detailed operation of steps S809 and S811 in FIG. 8 will be described as follows.

First, the main control unit 101 displays on the monitor 104 an identification code icon 1201 of a slot for supplying any part whose part loss ratio exceeds the limit loss ratio (step S1101).

Next, the main control unit 101 displays so that the identification code icons 1202 of the nozzles that used the displayed component supply slot are connected with the identification code icon 1201 of the displayed component supply slot ( Step S1103).

Next, the main control unit 101 displays so that the identification code icons 1203 and the like of the heads using each of the displayed nozzles are connected with the identification code icon 1202 of each of the displayed nozzles ( Step S1105).

In addition, the main control unit 101, the identification code icon 1203 of the head having the highest part loss ratio among the displayed heads, the identification code icon 1202 of the nozzle having the highest part loss ratio among the displayed nozzles, and The lines connected between the identification code icon 1201 of the displayed component supply slot are displayed so as to be activated (step S1107).

13 shows a detailed operation of steps S809 and S811 of FIG. 8 when the part loss ratio of one nozzle exceeds the limit loss ratio.

FIG. 14 shows an example of a screen displayed on the monitor (104 in FIG. 1) by the operation of FIG. 13. In Fig. 14, reference numerals 1401, 1402, and 1403 denote identification icon icons, and 1401i denotes an icon shape. For example, the identification code icon 1401 includes an icon shape 1401i, an identification code N04, and a component loss ratio (0.3%).

1, 13 and 14, when the part loss ratio of one nozzle exceeds the limit loss ratio, the detailed operation of steps S809 and S811 of FIG. 8 will be described as follows.

First, the main control unit 101 displays on the monitor 104 the identification code icon 1401 of any nozzle whose part loss ratio exceeds the limit loss ratio (step S1301).

Next, the main control unit 101 displays the identification code icon(s) 1402 (or the like) of the head(s) that used the displayed nozzle to be connected to the identification code icon 1401 of the displayed nozzle. (Step S1303).

Next, the main control unit 101 displays identification code icons 1403 and the like of the slots for supplying parts used by each of the displayed heads. ) And display (step S1305).

In addition, the main control unit 101, the identification code icon 1403 of the slot for supplying the highest component loss ratio among the slots for supplying parts, the identification code of the head having the highest part loss ratio among the displayed heads The lines connected between the icon 1402 and the identification icon 1401 of the displayed nozzle are displayed to be activated (step S1307).

Meanwhile, the present invention can be embodied as computer readable codes on a computer readable recording medium.

Examples of computer-readable recording media include ROM, RAM, CD-ROM, magnetic tapes, floppy disks, optical data storage devices, etc., and also implemented in the form of carrier waves (for example, transmission via the Internet). Includes. In addition, the computer-readable recording medium can be distributed over network coupled computer systems so that code can be stored and executed in a distributed fashion. In addition, functional programs, codes, and code segments for implementing the present invention can be easily inferred by programmers in the technical field to which the present invention pertains.

As described above, according to the method for monitoring the operation of the component mounting machine of the embodiment of the present invention, the operator or the technician may not only the head in which the component loss ratio exceeds the limit loss ratio, but also the component loss ratio indicates the limit loss ratio. Any excess nozzles or slots for supplying parts are immediately known. Furthermore, among the heads or nozzles or parts supply slots associated with the head or nozzle or parts supply slot, the head or nozzle or part supply slot having the highest part loss ratio can be immediately recognized.

Thus, it is possible for a worker or technician to take a relatively short time to diagnose the cause of the increase in the part loss ratio.

So far, the present invention has been focused on preferred embodiments. Those skilled in the art to which the present invention pertains will understand that the present invention can be implemented in a modified form without departing from the essential characteristics of the present invention.

Therefore, the disclosed embodiments should be considered in terms of explanation, not limitation. The scope of the present invention is shown in the claims rather than the foregoing description, and the invention claimed by the claims and the inventions equivalent to the claimed invention should be construed as being included in the present invention.

There is a possibility that it may be used in manufacturing equipment other than a component mounting machine.

10: parts mounting machine, 11: monitoring device,
H: head, N: nozzle,
P: Part, I: Lighting part,
C: line scan camera, 101: main control unit,
102: driving unit, 103: image processing unit,
104: monitor.
501, 601, 701: identification mark icons,
501i, 601i, 701i: icon shapes,
1001, 1002, 1003: identification mark icons,
1001i, 1201i, 1401i: icon shapes,
1201, 1202, 1203: identification mark icons,
1401, 1402, 1403: identification sign icons.

Claims (6)

A method for monitoring the operation of a component mounting machine having a plurality of heads, a plurality of nozzles, and a plurality of component supply slots,
(A) calculating a component loss ratio of each of the head, nozzle, and slot for supplying a component corresponding to the component discarding operation whenever the component discarding operation occurs;
Displaying an identification code icon of a head or a nozzle or a slot for supplying a component, wherein a calculated component loss ratio among the plurality of heads, the plurality of nozzles and the plurality of component supply slots exceeds a predetermined limit loss ratio. Step (b); And
Displaying the identification icon of the head or the nozzle or the part supply slot having the highest part loss ratio among the heads or the nozzles or the part supply slots associated with the displayed head or nozzle or part supply slot ( c); a method of monitoring the operation of a component mounting machine, including. According to claim 1,
A method for monitoring the operation of the component mounting machine, an alarm sound is generated while the steps (b) and (c) are performed. According to claim 1, Each of the identification code icons displayed in the step (b) and step (c),
A method of monitoring the behavior of a component mounter, including icon shape, identification code, and component loss ratio. According to claim 1, When the part loss ratio of any one of the plurality of heads exceeds the limit loss ratio,
In step (b), an identification code icon of any head whose part loss ratio exceeds the limit loss ratio is displayed,
In step (c),
The identification code icons of the nozzles operated with the displayed head are displayed to be connected to the identification code icon of the displayed head,
The identification code icons of the slots for supplying parts used by each of the displayed nozzles are displayed to be connected to the identification icon of each of the displayed nozzles,
Between the identification symbol icon of the slot for supplying the highest component loss ratio among the slots for supplying the displayed components, the identification symbol icon of the nozzle with the highest part loss ratio among the displayed nozzles, and the identification symbol icon of the displayed head A method of monitoring the operation of a component mounter, wherein the connected lines are displayed to be activated. According to claim 1, When the part loss ratio of any one of the plurality of parts supply slots for a part supply slot exceeds the limit loss ratio,
In step (b), an identification code icon of a slot for supplying any part whose part loss ratio exceeds the limit loss ratio is displayed,
In step (c),
The identification code icons of the nozzles using the displayed component supply slot are displayed to be connected to the identification code icon of the displayed component supply slot,
The identification code icons of the heads using each of the displayed nozzles are displayed to be connected to the identification icon of each of the displayed nozzles,
The lines connected between the identification symbol icon of the head with the highest part loss ratio among the displayed heads, the identification symbol icon of the nozzle with the highest part loss ratio among the displayed nozzles, and the identification symbol icon of the slot for supplying the displayed parts A method of monitoring the operation of a component mounter, which is displayed to be activated. According to claim 1, When the part loss ratio of any one of the plurality of nozzles exceeds the limit loss ratio,
In step (b), the identification mark icon of any one of the nozzles in which the part loss ratio exceeds the limit loss ratio is displayed,
In step (c),
The identification code icons of the heads using the displayed nozzle are displayed to be connected to the identification code icon of the displayed nozzle,
The identification code icons of the slots for supplying parts used by each of the displayed heads are displayed to be connected to the identification icon of each of the displayed heads,
Between the identification symbol icon of the slot for supplying the highest component loss ratio among the slots for supplying the displayed component, the identification symbol icon of the head having the highest component loss ratio among the displayed heads, and the identification symbol icon of the displayed nozzle. A method of monitoring the operation of a component mounter, wherein the connected lines are displayed to be activated.

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