JP2002033600A - Component detection method and component mounting machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a component detection method which can sense the defect of a taping state including the existence of every component at a taping component, and to provide a component mounting machine. SOLUTION: The whole image of every component 5 at the taping component 1 is sensed by a sensor unit 10 which can sense the whole image at a wide angle, in such a way that the defect of the taping state can be sensed including the existence of every component 5 at the taping component 1. The whole image of every component at the taping component is imaged by a camera. Image data which is imaged is compared with image data which is stored in advance. Every component at the taping component is sensed three-dimensionally by a plurality of sensors. The whole image of the component is sensed. The state of the component can be discriminated precisely.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for detecting a defective taping state including the presence or absence of a component when transferring a component from a component supply unit to a mounting unit in a component mounting machine such as an electronic component insertion mounting machine. The present invention relates to a component detection method and a component mounting machine applied to the present invention.

[0002]

2. Description of the Related Art FIG. 3 and FIGS. 21 to 24 show an example of a component presence / absence detecting device in a conventional electronic component insertion / mounting machine.
This will be described with reference to FIG.

In FIG. 3, reference numeral 1 denotes a taping component, which is constituted by holding both ends of leads of a number of components 5 with a tape 1a. FIG. 3 shows components from a component supply means 4 on which the taping component 1 is set. 5 shows a step of sequentially transferring the reference numbers 5 to the mounting means 6. As shown in FIG. 3A, the tape 1 of the taping component 1 set in the component supply means 4
a and the lead wire of the component 5 as shown in FIG.
After being gripped by the chuck 6a of the mounting means 6, the chuck 6
a to move the taping part 1 forward and backward.
Withdrawal for the pitch, and then, as shown in FIG.
By cutting the tape 1 a with the tape cutter 7, the component 5 is delivered to the mounting means 6.

Conventionally, in this step, as shown in FIG. 21, in order to detect the presence or absence of the component 5 in the tape cutter unit 21, a sensor unit 2 comprising a light emitter and a light receiver is used.
2 and the chuck 6 as shown in FIGS.
The presence or absence of the component 5 is determined by recognizing only the main body of the component 5 before the component 5 is pulled out by a. FIG.
Shows a state where a part is present, and FIG. 23 shows a state where a part break has occurred.

[0005]

However, in the above-described conventional configuration, it is not possible to detect a difference between whether the supply of the component 5 has been performed normally, whether an abnormality has occurred, or whether the component has run out. There was a problem. For example, even when the leads of the component 5 are tapered in an oblique state, the sensor unit 22 detects the component 5 and determines that the component 5 is present as shown in FIG. There is a problem that a case where the delivery is not performed occurs.

For this reason, even though the component has not actually run out, the component run-out is erroneously detected, a useless mounting failure occurs due to a defective taping state, and the delivery of the component 5 is abnormal. There is a problem that the mechanical mechanism is damaged if the operation is performed in the state.

SUMMARY OF THE INVENTION In view of the above-mentioned conventional problems, an object of the present invention is to provide a component detection method and a component mounting machine capable of detecting a defective taping state including the presence or absence of each of the taping components.

[0008]

SUMMARY OF THE INVENTION A component detecting method according to the present invention is a component detecting method for detecting a defective taping state including the presence or absence of each component of a taping component. By detecting the entire image, or by capturing the entire image of each component of the taping component by a camera, and comparing the captured image data with previously stored image data, or by using a plurality of sensors for each of the taping components By detecting the component three-dimensionally, the entire image of the component is detected, and the state of the component fixed to the taping can be accurately identified. It is possible to prevent occurrence of mounting failure, damage to the mounting mechanism, and the like.

Further, the component mounter of the present invention is a component mounter that transfers each component of a taping component mounted on a component supply unit to a mounting unit and mounts the component on the taping component mounted on the component supply unit. It is equipped with a whole image detecting means for detecting the whole image of each part, and the whole image detecting means detects the whole image of the part, so that the state of the part fixed to the taping can be accurately identified, and the part If there is a defect in the taping state, including the presence or absence of a component, it is possible to determine the state of the component and stop mounting before moving the component to the mounting process, and useless components generated by the defective taping state It is possible to prevent exchange work, mounting failure, and damage to the mounting mechanism.

The whole image detecting means is constituted by a wide-angle sensor or a camera for picking up the whole image of each component;
Storing the captured image data, and determining means for determining the failure of the component by comparing the image data captured during the actual mounting process with the previously stored image data, or a configuration in which each component has a plurality of sensors. Thus, it can be configured to detect three-dimensionally.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS (First Embodiment) Hereinafter, a component insertion mounting machine according to a first embodiment of the present invention will be described with reference to FIGS.

1 and 2 showing the component supply means in the component insertion and mounting machine, reference numeral 1 denotes a taping component formed by holding both ends of leads of a large number of components 5 with a tape 1a, and 2 denotes a taping component. The component boxes 3 and 3 are cartridges provided with a support portion for the component box 2 and a supply guide for the extracted taping component 1. Reference numeral 4 denotes a component supply means on which a taping component 1 is set as shown in FIG.

FIG. 3 shows a process of transferring the component 5 from the component supply means 4 on which the taping component 1 is set to the chuck 6a of the mounting means 6. 7 is a tape cutter. The chuck 6a grasps the tape 1a of the taping component 1 set on the component supply means 4 and the lead wire of the component 5, and moves the chuck 6a back and forth to pull out the component 5 by one pitch. Then, the component 5 is delivered to the mounting means 6 by cutting the tape 1 a with the tape cutter 7.

In the present embodiment, before the component 5 is pulled out by the chuck 6a, the entire image of the component 5 including the state with the lead is detected, and the taping state of the component 5 including the presence or absence of the component 5 is detected. .

FIG. 4 shows a configuration in which the taping state of the component 5 is detected by a sensor unit 10 as a wide-angle sensor capable of detecting a wide-angle range, comprising a light-transmitting unit 8 and a light-receiving unit 9. A plurality of light emitters 8 and light receivers 9 are built in the light receiver unit 9 so as to face each other in a line.

In the normal state shown in FIG. 4, a plurality of optical axes emitted from the projector unit 8 of the sensor unit 10 are interrupted by the component 5 and its lead wire, and the light receiving unit 9 receives a small amount of light. . In this way, the plurality of optical axes emitted from the projector unit 8 are
And the amount of light received by the light receiver unit 9 is not interrupted when the light is interrupted by the entire component 5 including the lead wire, or when the light is interrupted only by the component or only the lead wire. In this case, the amount of received light changes to small, medium, and large, respectively. Therefore, the supply state of the component 5 can be determined by using the information.

FIG. 5 shows a case in which a defect has occurred in the taping state of the electronic component. Since the lead wires are slanted, the light emitted from the projector unit 8 is lower than when the component supply shown in FIG. 4 is normally performed. Since the shaft cannot be completely interrupted by the lead wire of the component 5, the light receiving amount of the light receiving unit 9 slightly increases and the light receiving amount becomes medium.

FIG. 6 shows a case in which the component 5 has run out. Since there is no component that interrupts the optical axis of the projector unit 8, the amount of light received by the light receiver unit 9 is the largest, and the amount of light received is large. Become.

FIG. 7 shows a hardware configuration of a component detection device for determining the supply state of components by the sensor unit 10.
Reference numeral 11 denotes a main controller, which includes an input unit 12 and a control unit 13. The sensor unit 10 separates the signal into a signal a when the light reception amount is high and a signal b when the light reception amount is high according to the difference in the detected light reception amount.
1 to the input unit 12. If the amount of received light is small, the sensor unit 10 determines that there is no detection, and the signal to the main controller 11 is not transmitted. Then, depending on whether the received signal is a or b, the control unit 13 determines the operation of the device in the next step.

FIG. 8 shows a method of controlling the operation of the apparatus by a signal input from the sensor unit 10. First, it is checked whether a signal has been input from the sensor unit 10,
If there is no input, continue implementation as it is. If there is an input, according to the received light amount, if the signal a indicates that the received light amount is medium, it is determined that the supply state of the electronic component is abnormal, the mounting operation is stopped, and an abnormality occurs in the electronic component supply unit. Is displayed by a warning message to urge the operator to repair the taping component 1. When the signal b has a large amount of received light, it is determined that the component has run out, the mounting operation is stopped, the component supply unit is operated to the component replacement position, and the fact that the component has run out is displayed by a warning message, Encourage the operator to replace parts.

In the description of the present embodiment, the sensor unit 1
Although the example in which 0 is constituted by a transmissive sensor composed of a light emitting unit 8 and a light receiving unit 9 has been described, the present invention can be similarly implemented by using a reflective sensor or other sensors.

(Second Embodiment) Next, a component insertion mounting machine according to a second embodiment of the present invention will be described with reference to FIGS.

In FIG. 9, reference numeral 14 denotes a recognition camera, and reference numeral 15 denotes a projector for the recognition camera, which shows a state where the electronic components 5 are normally supplied. FIG. 10 shows a configuration of a component detection device using the recognition camera 14. Reference numeral 16 denotes a recognition controller.
, A storage unit 18 and a control unit 13.

In the above configuration, as a preliminary preparation before component mounting, all components to be mounted are sequentially recognized by the camera 14.
To image. Recognition controller 1
The image data is taken in as image data. The captured image data is binarized, and the binarized data of each point of the upper lead portion, the component, and the lower lead portion of the component shape is stored in the storage unit 18 in the main controller 11 as the binarized data check point part. It is stored as data for each part.

At the time of actual mounting, a component is imaged by the recognition camera 14, and the image data of the imaged component and the storage unit 18 are stored.
, And whether or not the binarization level matches is determined at each binarization data checkpoint, and the ratio of the checkpoint that matches the checkpoint with respect to all the checkpoints is determined. The taping state of the component including the presence / absence is determined.

In the state shown in FIG. 9 where the parts 5 are normally supplied, the check points almost completely coincide. FIG.
Indicates a case where an abnormality has occurred in the taping state of the part 5, and since the lead is oblique, the binarization level of the part data and the 30
Only% match. FIG. 12 shows a case in which a part has run out. Since there is no part, it does not match the binarization level of the part data at all, and the same ratio is 0%.

Thus, the checkpoint match rate is 9
If the values are equal to each other by 0% or more, no signal is transmitted from the recognition controller 16 to the main controller 11, and the mounting is continued. If the same is less than 10% to 90%, a signal A is transmitted from the recognition controller 16 to the main controller 11 as an abnormality of the component supply unit. If it is less than 10%, the signal B is transmitted as a component exhaustion.

FIG. 13 shows a method of controlling the operation of the apparatus based on an input signal from the recognition controller 16. First, it is checked whether or not a signal has been input from the recognition controller 16, and if there is no input, the mounting is continued as it is. If there is an input, the signal A in which the same ratio of the checkpoints of the binarization level is less than 10% to less than 90% indicates that the mounting operation has stopped and that an abnormality has occurred in the component supply unit. A warning message is displayed to prompt the operator to repair the taping component 1. In the case of the signal B in which the same ratio is less than 10%, it is determined that the component has run out and the mounting operation is stopped.
The component supply unit is operated to the component replacement position, a warning message indicating that the component has run out is displayed by a warning message, and the operator is prompted to replace the component.

In the example of this embodiment, the binarization level comparison between the part data and the image data being mounted is 90 points each.
% Or more, less than 10% to less than 90%, and less than 10%, the determination example is shown, but this determination criterion can be changed and set.

In the above description, an example in which the data of the recognition camera 14 is converted into a binarized level has been described. However, the present invention can be similarly implemented when other determination processing is used.

(Third Embodiment) Next, a component insertion mounting machine according to a third embodiment of the present invention will be described with reference to FIGS.

FIG. 14 shows a configuration of a component detection device using a plurality of sensor units 10a each including a single light emitting device 8a and a light receiving device 9a, and shows a state where the component 5 is normally supplied. In order to confirm the shape of the component from right beside the taping component 1, a plurality of sensor units 10a are installed vertically for component detection, for lead detection above the component, and for lead detection below the component. In order to confirm whether the shape of the component does not protrude from the line on the tape from just above the taping component 1, a pair of components are provided on both sides for detecting the left side of the tape and detecting the right side of the tape. Note that the pair of sensor units 10a on both sides are configured to output inverted signals.

If all of the sensor units 10a detect the component 5 during mounting, mounting is continued. If any one of the sensor units 10a is not detected, the component 5 is detected. Is determined to be defective, the mounting operation is stopped, and the tape is repaired. If all of the sensor units 10a have not been detected, it is determined that the components are out of components, and mounting is stopped and component replacement is performed.

FIG. 15 shows a configuration of a three-dimensional component detecting device using a plurality of sensor units 10a. The result detected by each of the plurality of sensor units (1 to n) 10 is transmitted to the input unit 12 of the main controller 11. Input unit 1
2 is transmitted to the control unit 13 as it is, and the control unit 1
In step 3, it is confirmed how many sensor units 10a have been detected out of the plurality of sensor units, and the operation of the apparatus in the next process is determined based on the result.

FIGS. 16 to 18 show a case where a defect occurs in the taping state of the electronic component. In FIG. 16, since the leads are oblique, the component detection sensor has not been detected. FIG. 17 shows that the tape left-side detection sensor has not been detected because the lead protrudes from the line on the tape. FIG. 18 is a view taken in the direction of arrow A in FIG. 17, 19 is a tape left detection sensor range, 20 is a tape right detection sensor range, and in the normal state of FIG. At the time of abnormality shown in FIG. 18B, the component blocks the detection range on the left side of the tape. FIG. 19 shows a case in which a component has run out, and all of the sensor units 10a are in an undetected state.

FIG. 20 shows a method of controlling the operation of the apparatus based on the result of the input signals of the plurality of sensor units 10a. First, it is confirmed whether or not all of the plurality of sensor units 10a have been detected, and if all have been detected, mounting is continued. If there is no detection, all sensor units 10a
Is determined based on whether or not is detected. If all of the sensor units 10a have not been detected, it is determined that the component has run out, the mounting operation is stopped, and the component supply unit is operated to the component replacement position.
In addition, a warning message indicating that parts are running out is displayed to urge the operator to replace parts.

If not all are not detected, it is determined that the supply state of the component 5 is abnormal, and a stop message is displayed by a warning message indicating that the mounting operation has stopped and an abnormality has occurred in the component supply unit. Encourage the repair of 1.

In the description of the present embodiment, an example is shown in which the sensor unit 10a is constituted by a transmission type sensor. However, a case where a reflection type sensor or another sensor is used can be similarly applied.

[0039]

According to the component detecting method of the present invention, as described above, in the component detecting method for detecting a defective taping state including the presence or absence of each component of the taping component, the wide angle sensor detects each component of the taping component. By detecting the entire image, or by capturing the entire image of each component of the taping component by a camera, and comparing the captured image data with previously stored image data, or by using a plurality of sensors for each of the taping components Since the whole image of the component is detected by detecting the component three-dimensionally, the state of the component fixed to the tape can be accurately identified, and unnecessary component replacement work caused by a defective taping state. Or mounting failure, damage to the mounting mechanism, etc. can be prevented.

Further, the component mounter of the present invention is a component mounter that transfers each component of the taping component mounted on the component supply unit to the mounting unit and mounts the component on the taping component mounted on the component supply unit. Since there is a whole image detecting means for detecting the whole image of each part, the whole image detecting means can detect the whole image of the part and accurately identify the state of the part fixed to the tape, and the presence or absence of the part If there is a defect in the taping state including the part, the mounting of the part can be stopped by judging the state of the part before moving the part to the mounting process, and unnecessary part replacement work caused by the defective taping state Or mounting failure, damage to the mounting mechanism, etc. can be prevented.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of a component supply unit of a component mounter according to a first embodiment of the present invention and a detailed perspective view of a part thereof.

FIG. 2 is a detailed view of a main part of a component supply unit in the embodiment.

FIG. 3 is an explanatory diagram of a delivery step from a component supply unit to a mounting unit in the embodiment.

FIG. 4 is a perspective view of a detection state in a normal state in the component detection device of the embodiment.

FIG. 5 is a perspective view of a detection state when the taping state is abnormal in the embodiment.

FIG. 6 is a perspective view of a detection state when a component runs out in the embodiment.

FIG. 7 is a configuration diagram of a component detection device in the embodiment.

FIG. 8 is a flowchart showing a control operation of the apparatus based on component detection in the embodiment.

FIG. 9 is a perspective view of a normal state of a component detection device according to a second embodiment of the present invention.

FIG. 10 is a configuration diagram of a component detection device in the embodiment.

FIG. 11 is a perspective view of a detection state when the taping state is abnormal in the embodiment.

FIG. 12 is a perspective view of a detection state when a component runs out in the embodiment.

FIG. 13 is a flowchart showing a control operation of the apparatus based on component detection in the embodiment.

FIG. 14 is a perspective view of a normal state of a component detection device according to a third embodiment of the present invention.

FIG. 15 is a configuration diagram of a component detection device in the embodiment.

FIG. 16 is a perspective view of a detection state when the taping state is abnormal in the embodiment.

FIG. 17 is a perspective view of a detection state when another taping state is abnormal in the embodiment.

18 is an explanatory diagram of a normal state and an abnormal state when viewed from the direction A in FIG. 17;

FIG. 19 is a perspective view of a detection state when a component runs out in the embodiment.

FIG. 20 is a flowchart showing a control operation of the apparatus based on component detection in the embodiment.

FIG. 21 is a perspective view showing an arrangement state of a component detection device in a conventional example and details of a main part thereof.

FIG. 22 is a perspective view of a detection state in a normal state in the conventional example.

FIG. 23 is a perspective view of a detection state when a component runs out in the conventional example.

FIG. 24 is a perspective view showing an undetected state when the taping state is abnormal in the conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Taping component 4 Component supply means 5 Component 6 Mounting means 10 Sensor unit (wide-angle sensor) 10a Sensor unit 11 Main controller 13 Control unit 14 Recognition camera 16 Recognition controller 18 Storage unit

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Takeshi Kuribayashi 1006 Kadoma Kadoma, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (72) Inventor Hideaki Watanabe 1006 Odaka Kadoma Kadoma City, Osaka Matsushita Electric Industrial F Terms (reference) 2F065 AA02 AA16 AA22 AA37 BB05 BB15 CC25 DD00 DD16 FF02 GG14 HH04 HH13 JJ02 JJ03 JJ05 JJ25 JJ26 PP12 QQ04 QQ21 QQ24 QQ25 QQ38 SS04 SS09 SS13 UU02 UU04 5E313 AA31 CC04 DD

Claims (7)

[Claims] 1. A component detecting method for detecting a defective taping state including the presence or absence of each component of a taping component, wherein an entire image of each component of the taping component is detected by a wide-angle sensor, and the component is fixed. A component detection method, wherein the defect is detected in a state. 2. A component detection method for detecting a defective taping state including presence / absence of each component of a taping component, wherein a whole image of each component of the taping component is captured by a camera, and the captured image data and the A component detection method, comprising comparing the stored image data with the stored image data and detecting a defect while the component is fixed. 3. A component detecting method for detecting a defective taping state including presence or absence of each component of a taping component, wherein each component of the taping component is three-dimensionally detected by a plurality of sensors, and the component is fixed. A component detection method comprising: detecting a defect in a state where the component is present. 4. A component mounting machine that transfers each component of a taping component mounted on a component supply unit to a mounting unit and mounts the component, and detects an overall image of each component of the taping component mounted on the component supply unit. A component mounting machine comprising a whole image detecting means. 5. The component mounting machine according to claim 4, wherein the whole image detecting means comprises a wide angle sensor. 6. A whole image detecting means, comprising: a camera for picking up the whole image of each component; storing the picked-up image data; and comparing the image data picked up during the actual mounting process with the previously stored image data. 5. The component mounting machine according to claim 4, further comprising: a determination unit configured to determine whether the component is defective. 7. The component mounting machine according to claim 4, wherein the whole image detecting means is configured to three-dimensionally detect each component by a plurality of sensors.