KR100725485B1 - Electronic parts inspection system - Google Patents

Abstract

A system for inspecting electronic components is provided to shorten a period of inspection time by aligning electronic components in parallel. An electronic component supply unit(100) includes a hopper(110) and feeders(120,130) for feeding electronic components. An electronic component alignment unit(200) aligns the electronic components on a glass disk(300). An electronic component position detection unit detects positions of the electronic components arranged on the glass disk. An electronic component photographing unit includes a plurality of cameras(510) for photographing the electronic components and an illuminating device for illuminating the electronic components. An electronic component discharge unit(600) classifies the electronic components by discharging the compressed air. A control unit(700) controls the cameras and the illuminating device of the electronic component photographing unit, and a solenoid valve of the electronic component discharge unit. The electronic components are sequentially transferred to the glass disk via a non-vibration shoot(210) and an aligner(220).

Description

Electronic Parts Inspection System

1 is a plan view of the electronic component inspection system according to an embodiment of the present invention.

Figure 2 is a plan view of the electronic component inspection system according to another embodiment of the present invention.

3 is a diagram illustrating a difference in characteristics between a general lens and a telecentric lens.

Figure 4 is a plan view of the electronic component inspection system according to another embodiment of the present invention.

5 is a view for explaining the configuration of a mechanism used for photographing the left and right sides of the electronic component in the electronic component inspection system according to the embodiment of FIG.

Figure 6 is a plan view of the electronic component inspection system according to another embodiment of the present invention.

7 and 8 illustrate a preferred embodiment of the electronic component photographing unit according to the spirit of the present invention.

<Explanation of symbols for the main parts of the drawings>

100: electronic component supply unit 200: electronic component alignment unit

300: glass disc 400: electronic component position detection unit

500: electronic component photographing unit 600: electronic component discharging unit

700: control unit 800: motor

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic component inspection system, and more particularly, to an electronic component sorting apparatus, an electronic component discharging apparatus, and an electronic component that automatically sorts electronic components, makes a determination of good value, and discharges and sorts electronic products according to the determination result. Relates to an inspection system.

In this case, the electronic component inspection system refers to a multilayer ceramic capacitor (MLCC) or a similar type of electronic component, and photographs an image, determines whether the electronic component is taken using the captured image, and then blows compressed air. Refers to a system that automatically classifies electronic components based on results.

In general, the electronic parts such as MLCC is required to determine the quality of the electronic parts such as size, cracks, plating amount, plating area, etc. before being released.

Meanwhile, examples of the conventional electronic component inspection system used for such an electronic component inspection have been disclosed in Korean Patent Publication Nos. 2002-73957 and 2004-82564.

However, the conventional electronic component inspection system checks the quality of parts by arranging the electronic parts that are conveyed to the glass disc and inspected in a single line. There was a problem that is limited depending on the speed and the like to determine the discharge means.

Disclosure of Invention The present invention has been made to solve the above problems, and an object of the present invention is to double-align an electronic component transmitted from a hopper through a ball feeder, an electronic component supply unit and an aligner, and to double the inspection speed of the electronic component. .

In addition, an object of the present invention is to simplify the configuration of the apparatus by reducing the appearance of the electronic parts arranged in a row through the minimum camera means, and to reduce the manufacturing cost of the apparatus.

In addition, it is an object of maximizing the efficiency of the electronic component inspection by enabling the inspection of both parts of at least two or more electronic components at the same time through a glass disk made of a multilayer.

The present invention for achieving the above object is an electronic component supply unit 100 including a hopper (110) for loading a plurality of electronic components and feeders (120, 130) for feeding the electronic components sequentially from the hopper (110) ; An electronic component alignment unit 200 for arranging and arranging the electronic components supplied from the electronic component supply unit 100 to the glass original plate 300 without vibration; A glass original plate 300 on which electronic components aligned through the electronic component alignment unit 200 are disposed; An electronic component position detector 400 for detecting a position of the electronic component disposed on the glass disc 300; Electronic component photographing unit 500 including a plurality of cameras 510 for photographing the four upper, lower, left, and right sides of the electronic component and lighting means 520 attached to each of the cameras 510 to provide illumination to the electronic component to be photographed. ); The electronic component photographing unit 500 based on the signal received from the electronic component discharging unit 600 and the electronic component position detecting unit 400 to classify the electronic components by discharging the compressed air according to the determination of the quality of the electronic component. In the electronic component inspection system including a control unit 700 for controlling the camera 510 and the lighting means 520 and the solenoid valve 612 of the electronic component discharge unit 600, the electronics supplied to the feeder from the hopper The parts are arranged in a row, and the electronic parts arranged in a row are sequentially transferred to the glass disc 300 via the vibration-free chute 210 and the aligner 220.

Here, the feeder may be formed in plural to transfer electronic components in a double row.

The electronic component photographing unit may include two cameras for photographing the upper and lower surfaces of the electronic component proceeding in a double row, two cameras capable of photographing the left and right surfaces of the electronic component irrespective of the heat of the electronic component, and the camera. It is characterized in that it comprises a lighting means attached to each of the illumination means for providing the electronic component to be photographed.

The electronic component photographing unit may include two cameras for photographing the upper and lower surfaces of the electronic component proceeding in a double row, two cameras for photographing the left and right surfaces of the electronic component simultaneously according to each row of the electronic component, and the camera. It is characterized in that it comprises a lighting means attached to each of the lighting means for providing illumination to the electronic component to be photographed, and the left and right surfaces of the electronic component according to the respective columns at the same time with a single camera. The apparatus includes a primary mirror that primarily reflects the left and right images of the electronic component toward the camera, and 2 which modifies the path of the image signal such that the image signal reflected through the primary mirror is incident perpendicularly to the camera lens. And a car mirror.

According to another embodiment of the present invention, the present invention provides an electronic component supply unit including a hopper (110) for loading a plurality of electronic components and feeders (120, 130) for feeding the electronic components sequentially from the hopper (110) 100; An electronic component alignment unit 200 for arranging and arranging the electronic components supplied from the electronic component supply unit 100 to the glass original plate 300 without vibration; A glass original plate 300 on which electronic components aligned through the electronic component alignment unit 200 are disposed; An electronic component position detector 400 for detecting a position of the electronic component disposed on the glass disc 300; Electronic component photographing unit 500 including a plurality of cameras 510 for photographing the four upper, lower, left, and right sides of the electronic component and lighting means 520 attached to each of the cameras 510 to provide illumination to the electronic component to be photographed. ); The electronic component photographing unit 500 based on the signal received from the electronic component discharging unit 600 and the electronic component position detecting unit 400 to classify the electronic components by discharging the compressed air according to the determination of the quality of the electronic component. In the electronic component inspection system including a control unit 700 for controlling the camera 510 and the lighting means 520 and the solenoid valve 612 of the electronic component discharge unit 600, the glass disc is composed of a multi-layer The electronic parts supplied from the hopper to the feeder are each conveyed to the glass original plate composed of the multilayer via the vibration-free chute 210 and the aligner 220.

Here, the electronic component photographing unit includes two cameras for photographing the upper and lower surfaces of the electronic component proceeding in multiple layers, two cameras capable of simultaneously photographing the left and right surfaces of the electronic component irrespective of the layer where the electronic component proceeds. And lighting means attached to each of the cameras to provide illumination to the electronic component to be photographed.

In addition, the camera uses a telecentric lens that does not change the size and focus of the object image according to the distance between the electronic component and the lens.

In addition, the feeder is formed in plural, characterized in that for transmitting the electronic component in multiple layers.

In addition, the feeder is characterized in that it comprises a ball feeder (120) and a line feeder (Linear feeder) 130 that vibrates by the attraction and repulsive force of the magnet.

In addition, the electronic component position detection unit 400 calculates the number of pulses according to the rotation of the motor and the trigger sensor 410 for generating a position determination signal of the electronic component disposed on the glass disc 300 to determine the position of the electronic component. It characterized in that it comprises a motor controller to recognize.

In addition, the electronic component position detector 400 may include a trigger sensor 410 for generating a trigger signal when the electronic component passes, and an encoder for generating an encoder value corresponding to the trigger signal.

The present invention through the above configuration has the effect of doubling the inspection speed of the electronic component by aligning the electronic components transmitted from the hopper through the ball feeder, the electronic component supply unit and the aligner in a double row. In addition, it is possible to simplify the configuration of the instrument by reducing the appearance of the electronic parts arranged in a row through the minimum camera means, it is possible to reduce the manufacturing cost of the instrument. In addition, it is possible to maximize the efficiency of the electronic component inspection by enabling the inspection of both parts of at least two or more electronic components at the same time through a glass disk made of a multilayer.

In order to fully understand the present invention, the advantages of the operability of the present invention, and the objects achieved by the practice of the present invention, reference should be made to the accompanying drawings which illustrate preferred embodiments of the present invention and the contents described in the accompanying drawings.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Like reference numerals in the drawings denote like elements.

1 is a plan view illustrating an electronic component inspection system according to an exemplary embodiment of the present invention.

Referring to FIG. 1, the electronic component inspection system includes an electronic component supply unit 100, an electronic component alignment unit 200, a glass disc 300, an electronic component position detection unit 400, an electronic component photographing unit 500, and an electronic component. The discharge unit 600 and the control unit 700 is included.

The electronic component may be a multilayer ceramic capacitor (MLCC) and a similar chip type ceramic device. Inspection also includes ceramic defects such as chip outs and cracks, termination defects such as scratches, and dimension defects caused by errors in length, thickness, and width. It refers to the process of determining and classifying the quality of electronic parts according to the presence or absence of defects in the electronic parts.

Hereinafter, each component constituting the electronic component inspection system will be described in detail.

The electronic component supply unit 100 is a component that sequentially feeds a plurality of electronic components that are subject to a good judgment, and includes a hopper 110 that accommodates a plurality of electronic components, and the hopper 110. It may be configured to include at least one feeder (120,130) for sequentially transferring the electronic products supplied from the vibration by vibration.

In the present embodiment, an electronic component supply unit 100 including a ball feeder 120 and a line feeder 130 vibrating by the attraction force and the repulsive force of the magnet is illustrated, but is not limited thereto. Other feeding means can be used which can sequentially supply a plurality of electronic components. The line feeder 130 preferably includes a cover that prevents the component from being separated by vibration or the like when the electronic component moves.

The electronic parts supplied from the ball feeder 120 to the line feeder 130 are arranged in a row, and the electronic parts arranged in the row are sequentially passed through the vibration-free chute 210 and the aligner 220, and the glass disc 300. Is returned.

The electronic component aligning unit 200 is a component for aligning and arranging the electronic component supplied from the electronic component supply unit 100 to the glass disc 300 in a non-vibration state, and is composed of a non-vibrating chute 210 and two jigs. The aligner 220. In this embodiment, one electronic component alignment unit 200 is formed for each column of electronic components that are aligned and transmitted. However, when precision of alignment of electronic components is required, one or more electronic component alignment units 200 may be installed. Of course.

The glass disc 300 is a component in which the electronic components arranged through the electronic component alignment unit 200 are disposed, and rotates at a constant rotation speed by the motor 800. Therefore, as the glass disc 300 rotates, the electronic parts arranged on the glass disc 300 also rotate together, and the state of the top, bottom, left, and right sides of the electronic parts arranged on the glass disc 300 is set to an appropriate position. It may be photographed by the photographing unit 500.

Here, the lower surface of the electronic component refers to the surface of the electronic component that is in contact with the glass disc 300, the upper surface of the electronic component refers to the opposite side of the lower surface, and the left side of the electronic component is the electronic component observed from the outer circumference of the glass disc 300 The surface of the electronic component refers to the surface opposite to the seat surface.

The electronic component position detector 400 is a component that generates a signal for determining the position of the electronic component disposed on the glass disc 300 and transmits the signal to the controller 700. The trigger sensor 410 generates a trigger signal. And it may include a motor controller for measuring the number of pulses according to the degree of rotation of the motor. The trigger sensor 410 may be separately installed for each column of the electronic component that passes through the electronic component alignment unit 200, and the motor controller transmits the measured pulse number to the controller 700 to transmit the pulse. To identify the location of electronic components.

However, the tool for recognizing the position of the electronic component is not limited to the trigger sensor 410 or the motor controller, and the position recognition tool of the electronic component, which is well known in the art, may be used instead of the trigger sensor 410 or the motor controller. Of course it can.

For example, as a component for generating a signal for determining the position of the electronic component disposed on the glass disc 300 and transmitting it to the control unit 700, the trigger sensor 410 and the encoder value for generating a trigger signal You can use the encoder to generate in real time. The trigger sensor 410 may be installed separately for each column of the electronic component that proceeds through the electronic component alignment unit, and position information of the electronic component that proceeds in a row using one encoder formed at the rotation center of the glass disc. You can see all of them.

Here, the encoder value is a number of pulses pre-assigned corresponding to the rotation angle of the glass disc 300, and indicates the position of the electronic component, the position of the camera 510 for photographing the electronic component, and the position of the through hole for discharging the electronic component. Provide information that can be judged. The number of pulses may be gradually increased as the rotation angle of the glass disc 300 increases based on the reference point, for example, the trigger sensor 410. The rotation angle to which the number of pulses is allocated can be adjusted according to the size of the electronic component.

Meanwhile, the position of the camera 510 of the electronic component photographing unit 500 and the position of the through hole (outlet) of the electronic component discharging unit 600 may be defined as an offset pulse number. For example, the position of the first camera 510 may have an offset of 1000 pulses based on the trigger sensor 410.

In other words, the trigger sensor 410 generates a trigger signal and transmits the trigger signal to the controller 700 when the electronic component disposed on the glass original plate 300 of the electronic component passes through the trigger sensor 410, and the motor controller. Transmits the corresponding pulse number according to the movement of the electronic component to the controller 700.

When the trigger sensor 410 and the encoder are used as the electronic component position detecting unit 400, the trigger signal generated when the electronic component passes the trigger sensor and the glass disc are divided by a predetermined angle to generate the trigger signal. The position of the electronic component is detected by using an encoder signal that generates position information of the generated electronic component, and photographing is performed when the electronic component passes the camera 510 of the electronic component photographing unit 500. .

The electronic component photographing unit 500 is a component for photographing the top, bottom, left and right four sides of the electronic component disposed on the glass disc 300, two cameras 510 for photographing the upper and lower surfaces of the electronic component proceeding in a double row; Four cameras 510 for photographing the left and right surfaces of the electronic component, and lighting means 520 attached to each of the cameras 510 to provide illumination to the electronic component to be photographed, according to the progress of the electronic components. Include. The electronic component photographing unit 500 is preferably installed at a place suitable for photographing the top, bottom, left, and right four sides of the electronic component.

The camera 510 is capable of acquiring 120 frames per second. Preferably, the camera 510 is a high speed photographing camera 510 capable of photographing a corresponding surface of an electronic component twice in succession. In this case, the continuous shooting provides an image of the corresponding surface of the electronic component disposed on the rotating glass disc 300 photographed from a different angle. In other words, the images continuously photographed has the effect of improving the selection power of the good judgment for the electronic components.

The camera 510 may be implemented as, for example, a charge coupled device (CCD) of 640 x 480 pixels. However, the camera 510 is not limited thereto, and may be appropriately selected according to the size of the electronic component and the rotation speed of the glass original plate 300.

When the camera 510 is described in more detail, the control unit 700 receives a pulse value at the time of receiving the trigger signal from the electronic component position detecting unit 400, and the input pulse value has a predetermined number. The electronic component photographing unit 500 is controlled to perform photographing at an increased time point.

The electronic component discharging unit 600 is a component for discharging and classifying the electronic component into compressed air according to the determination of the quality of the control unit 700, the solenoid valve 612, the air hose to control the flow of compressed air (air) 614, a discharge end 616 having a through hole, and a storage container 618 collecting the discharged electronic components. Since the electronic component proceeds in a row, a plurality of configurations of the electronic component discharge unit 600 are also required.

The controller 700 is a solenoid valve of the camera 510 of the electronic component photographing unit 500, the lighting unit 520, and the electronic component discharge unit 600 based on the signal received from the electronic component position detecting unit 400. 612, a component for controlling the camera 510, an image processor for acquiring a captured image, a trigger signal, a controller for controlling a motor 800 for rotating the glass disc 300, and a feeder. And a computer including an input / output (I / O) controller for controlling the luminaire 520 and the solenoid valve, a monitor for providing a user interface, and the like.

The control unit 700 uses the trigger signal and the pulse value received from the electronic component position detecting unit 400, and when the corresponding electronic component reaches the position of each camera 510 of the electronic component photographing unit 500, 4 of the electronic component is detected. Each camera 510 of the electronic component photographing unit 500 is controlled so as to sequentially photograph a surface, thereby obtaining a four-sided photographed image of the electronic component, performing both parts determination of the electronic component from the obtained image, and then determining According to the result, the solenoid valve 612 of the electronic component discharge part 600 is controlled so that the electronic components can be collected and sorted in the container.

Like the method of measuring the shooting timing of the electronic component through the camera 510, the solenoid valve may be controlled. That is, when the number of pulses is increased by an offset value assigned to the exit position of each through hole of the electronic component discharge part 600 from the pulse value for the corresponding electronic component, the controller 700 moves to the outlet of the through hole. The solenoid valve of the electronic component outlet 600 is controlled to inject compressed air.

2 is a plan view illustrating an electronic component inspection system according to another exemplary embodiment of the present invention.

Referring to FIG. 2, it can be seen that the embodiment disclosed in FIG. 2 is not significantly different in configuration from the embodiment disclosed in FIG. 1. Therefore, components different from those described in the embodiment of FIG. 1 will be described.

The electronic component inspection system disclosed in FIG. 2 also includes an electronic component supply unit 100, an electronic component alignment unit 200, a glass disc 300, an electronic component position detection unit 400, an electronic component photographing unit 500, and an electronic component discharge unit. It is configured to include a unit 600 and the control unit 700.

The electronic component supply unit 100 may include a hopper 110 accommodating a plurality of electronic components, and one or more feeders 120 and 130 that sequentially transfer electronic products supplied from the hopper 110 by vibration. It may be configured to include).

The electronic parts supplied from the ball feeder 120 to the line feeder 130 are arranged in a row, and the electronic parts arranged in the row are sequentially passed through the vibration-free chute 210 and the aligner 220, and the glass disc 300. Is returned.

The electronic component aligning unit 200 is a component for aligning and arranging the electronic component supplied from the electronic component supply unit 100 to the glass disc 300 in a non-vibration state, an alignment consisting of a non-vibrating chute 210 and two jigs. Group 220.

The glass disc 300 is a component in which the electronic components arranged through the electronic component alignment unit 200 are disposed, and rotates at a constant rotation speed by the motor 800. Therefore, as the glass disc 300 rotates, the electronic parts arranged on the glass disc 300 also rotate together, and the state of the top, bottom, left, and right sides of the electronic parts arranged on the glass disc 300 is set to an appropriate position. It may be photographed by the photographing unit 500.

The electronic component position detector 400 is a component that generates a signal for determining the position of the electronic component disposed on the glass disc 300 and transmits the signal to the controller 700. The trigger sensor 410 generates a trigger signal. And it may include a motor controller for measuring the number of pulses according to the degree of rotation of the motor. The trigger sensor 410 may be separately installed for each column of the electronic component that passes through the electronic component alignment unit 200, and the motor controller transmits the measured pulse number to the controller 700 to transmit the pulse. To identify the location of electronic components.

As another example of the electronic component position detecting unit 400, the trigger sensor 410 for generating a trigger signal when the electronic component passes and an encoder for generating an encoder value corresponding to the trigger signal in real time can be used. As shown.

The electronic component photographing unit 500 is a component for photographing the top, bottom, left and right four sides of the electronic component disposed on the glass disc 300, two cameras 510 for photographing the upper and lower surfaces of the electronic component proceeding in a double row; Unlike the embodiment disclosed in FIG. 1, two cameras 510 photographing the left and right surfaces of the electronic component, regardless of the heat that the electronic component proceeds, are attached to each of the cameras 510 to illuminate the electronic component to be photographed. It includes a lighting means 520 to provide.

In the case of the camera 510 photographing the left and right sides of the electronic component, there is a problem in that the side sizes of the electronic components in the inner row and the outer row may be measured differently due to the difference in the trajectory of the electronic parts proceeding in a double row. That is, in the case of the camera 510 photographing the left side based on the moving direction of the electronic component, the size of the electronic component proceeding in the outer row may be measured larger than the inner row, and the camera 510 photographing the left side. In the case of an image taken with a reverse, the opposite may occur.

This problem can be overcome by attaching a telecentric lens to the camera 510 to photograph the exterior of the electronic component as shown in FIG. 3. More specifically, when photographing the exterior of an electronic component using a general lens, the size and focus of an object image may vary depending on the distance between the electronic component and the lens, but the exterior of the electronic component is photographed using the telecentric lens. In this case, even if the distance between the electronic component and the lens is changed, the size and focus of the object image do not change. By using the characteristics of the telecentric lens, since the left and right side images of the electronic parts having the same size can be obtained regardless of the inner row and the outer row, the left and right sides of the electronic parts proceeding in the inner row and the outer row with only two cameras 510. Both sides can be measured. As a result, the manufacturing cost of the electronic component inspection system can be reduced, and the system configuration can be simplified to improve the reliability of the system.

The electronic component discharging unit 600 is a component for discharging and classifying the electronic component into compressed air according to the determination of the quality of the control unit 700, the solenoid valve 612, the air hose to control the flow of compressed air (air) 614, a discharge end 616 having a through hole, and a storage container 618 collecting the discharged electronic components.

The controller 700 is a solenoid valve of the camera 510 of the electronic component photographing unit 500, the lighting unit 520, and the electronic component discharge unit 600 based on the signal received from the electronic component position detecting unit 400. 612, a component for controlling the camera 510 to obtain a captured image, a controller for receiving a trigger signal, and controlling a motor 800 for rotating the glass disc 300; It may be a computer including an input / output (I / O) controller for controlling the feeders 120 and 130, the lighting means 520, and the solenoid valve, a monitor for providing a user interface, and the like.

4 is a plan view illustrating an electronic component inspection system according to another exemplary embodiment of the present invention.

As in FIG. 2, it can be seen that the embodiment disclosed in FIG. 4 is not significantly different in configuration from the embodiment disclosed in FIG. 1. Therefore, components different from those described in the embodiment of FIG. 1 will be described.

Referring to FIG. 4, the electronic component inspection system disclosed in FIG. 4 may also include an electronic component supply unit 100, an electronic component alignment unit 200, a glass disc 300, an electronic component position detection unit 400, and an electronic component photographing unit. It can be seen that it comprises a 500, the electronic component discharge unit 600 and the control unit 700.

The electronic component supply unit 100 may include a hopper 110 accommodating a plurality of electronic components, and one or more feeders 120 and 130 that sequentially transfer electronic products supplied from the hopper 110 by vibration. It may be configured to include).

The electronic parts supplied from the ball feeder 120 to the line feeder 130 are arranged in a row, and the electronic parts arranged in the row are sequentially passed through the vibration-free chute 210 and the aligner 220, and the glass disc 300. Is returned.

The electronic component aligning unit 200 is a component for aligning and arranging the electronic component supplied from the electronic component supply unit 100 to the glass disc 300 in a non-vibration state, and is composed of a non-vibrating chute 210 and two jigs. The aligner 220.

The glass disc 300 is a component in which the electronic components arranged through the electronic component alignment unit 200 are disposed, and rotates at a constant rotation speed by the motor 800. Therefore, as the glass disc 300 rotates, the electronic parts arranged on the glass disc 300 also rotate together, and the state of the top, bottom, left, and right sides of the electronic parts arranged on the glass disc 300 is set to an appropriate position. It may be photographed by the photographing unit 500.

The electronic component position detector 400 is a component that generates a signal for determining the position of the electronic component disposed on the glass disc 300 and transmits the signal to the controller 700. The trigger sensor 410 generates a trigger signal. And it may include a motor controller for measuring the number of pulses according to the degree of rotation of the motor. The trigger sensor 410 may be separately installed for each column of the electronic component that passes through the electronic component alignment unit 200, and the motor controller transmits the measured pulse number to the controller 700 to transmit the pulse. To identify the location of electronic components.

As another example of the electronic component position detecting unit 400, the trigger sensor 410 for generating a trigger signal when the electronic component passes and an encoder for generating an encoder value corresponding to the trigger signal in real time can be used. As shown.

The electronic component photographing unit 500 includes two cameras 510 for photographing the top, bottom, left, and right sides of the electronic component disposed on the glass disc 300, and photographing the top and bottom surfaces of the electronic component arranged in a row. Unlike the embodiment disclosed in FIG. 1, two cameras 510 for photographing the left and right surfaces of the electronic component, respectively, according to each row of the electronic component, and are attached to each of the cameras 510 to be photographed. Lighting means 520 for providing illumination, and a mechanism 530 for simultaneously photographing the left and right surfaces of the electronic component with a single camera 510 is included.

FIG. 5 is a diagram illustrating a configuration of a mechanism used when photographing the left and right surfaces of an electronic component in the electronic component inspection system according to the embodiment of FIG. 4.

Referring to FIG. 5, in order to photograph the left and right surfaces of the electronic components according to the columns with one camera 510, a structural camera 510 should be formed on the glass disc, and through a separate mechanism 530. It should be able to receive images from the left and right sides of electronic components. At least one mirror combination may be used as a representative embodiment of the apparatus 530. According to a preferred embodiment, the apparatus 530 may primarily reflect left and right images of the electronic component toward the camera 510. And a secondary mirror 532 that modifies the path of the image signal such that the image signal reflected through the primary mirror 531 is incident perpendicularly to the lens of the camera 510. have.

Through the apparatus 530, both left and right side surfaces of the electronic component that proceed with each of the two cameras 510 may be measured. As a result, the manufacturing cost of the electronic component inspection system can be reduced, and the system configuration can be simplified to improve the reliability of the system.

The electronic component discharging unit 600 is a component for discharging and classifying the electronic component into compressed air according to the determination of the quality of the control unit 700, the solenoid valve 612 to control the flow of compressed air (air), It may be configured to include an air hose 614, a discharge end 616 formed with a through hole, and a storage container 618 for collecting the discharged electronic components.

The controller 700 is a solenoid valve of the camera 510 of the electronic component photographing unit 500, the lighting unit 520, and the electronic component discharge unit 600 based on the signal received from the electronic component position detecting unit 400. 612, a component for controlling the camera 510, an image processor for acquiring a captured image, a trigger signal, a controller for controlling a motor 800 for rotating the glass disc 300, and a feeder. And a computer including an input / output (I / O) controller for controlling the luminaire 520 and the solenoid valve, a monitor for providing a user interface, and the like.

6 is a plan view illustrating an electronic component inspection system according to another exemplary embodiment of the present invention.

The electronic component inspection system disclosed in the drawing also includes an electronic component supply unit 100, an electronic component alignment unit 200, a glass original plate 300, an electronic component position detection unit 400, an electronic component photographing unit 500, and an electronic component discharge unit. It is configured to include a unit 600 and the control unit 700.

The electronic component supply unit 100 may include a hopper 110 accommodating a plurality of electronic components, and one or more feeders 120 and 130 that sequentially transfer electronic products supplied from the hopper 110 by vibration. It may be configured to include).

The electronic components supplied from the ball feeder 120 to the line feeder 130 are arranged insulated or double rowed, and the aligned electronic components are sequentially passed through the vibration-free chute 210 and the aligner 220, and the glass disc 300. Is returned.

The electronic component aligning unit 200 is a component for aligning and arranging the electronic component supplied from the electronic component supply unit 100 to the glass disc 300 in a non-vibration state, an alignment consisting of a non-vibrating chute 210 and two jigs. Group 220.

The glass original plate 300 is a component in which the electronic components arranged through the electronic component alignment unit 200 are arranged. According to a preferred embodiment, the glass original plate is composed of a plurality of layers spaced apart by a predetermined distance. Each of the plurality of glass discs are electronic components are aligned or transported in a single row or a double row, and rotates at a constant rotation speed by a motor 800 formed on a central axis of rotation. As the glass disc 300 rotates, the electronic parts arranged on the glass disc 300 also rotate together, and the top, bottom, left, and right sides of the electronic parts arranged on the glass disc 300 have electronic parts installed at appropriate positions. It may be photographed by the photographing unit 500.

The electronic component position detector 400 is a component that generates a signal for determining the position of the electronic component disposed on the glass disc 300 and transmits the signal to the controller 700. The trigger sensor 410 generates a trigger signal. And it may include a motor controller for measuring the number of pulses according to the degree of rotation of the motor. The trigger sensor 410 may be separately installed for each column of the electronic component that passes through the electronic component alignment unit 200, and the motor controller transmits the measured pulse number to the controller 700 to transmit the pulse. To identify the location of electronic components.

As another embodiment of the electronic component position detector 400, it is possible to use a trigger sensor 410 that generates a trigger signal when the electronic component passes and an encoder that generates an encoder value corresponding to the trigger signal in real time. As we have seen.

7 and 8 illustrate a preferred embodiment of the electronic component photographing unit according to the spirit of the present invention.

The electronic component photographing unit 500 is a component for photographing four upper, lower, left, and right sides of the electronic component disposed on the glass master 300, and photographs the upper and lower surfaces of the electronic component which proceeds with the glass master 300 having multiple layers. A plurality of cameras 510, a plurality of cameras 510 photographing the left and right sides of the electronic component, and lighting means 520 attached to each of the cameras 510 to provide illumination to the electronic component to be photographed. It includes.

According to the exemplary embodiment shown in FIG. 7, four upper, lower, left, and right sides of the electronic component which proceeds on the glass disc 300 configured as the multilayer may be photographed using a total of eight cameras 510. In the case of a camera photographing a side close to the central axis of the glass disc 300, since the installation space is narrow, it may be installed in parallel with the camera photographing the upper surface of the electronic component. The side photographing camera installed side by side with the top photographing camera makes it possible to smoothly photograph the side of the electronic component by reflecting the light at an angle using a mechanism capable of reflecting light such as a mirror.

According to the embodiment shown in FIG. 8, only four cameras 510 can be photographed on all four sides of the electronic component. That is, by photographing each side of at least two or more electronic components transferred to the multilayer layer with only one camera, the camera means can be reduced by half compared to the embodiment shown in FIG. 7, thereby reducing the manufacturing cost of the electronic component inspection system. It is possible to improve the reliability of the system by simplifying the configuration of the system.

The electronic component discharging unit 600 is a component for discharging and classifying the electronic component into compressed air according to the determination of the quality of the control unit 700, the solenoid valve 612, the air hose to control the flow of compressed air (air) 614, a discharge end 616 having a through hole, and a storage container 618 collecting the discharged electronic components.

The controller 700 is a solenoid valve of the camera 510 of the electronic component photographing unit 500, the lighting unit 520, and the electronic component discharge unit 600 based on the signal received from the electronic component position detecting unit 400. 612, a component for controlling the camera 510, an image processor for acquiring a captured image, a trigger signal, a controller for controlling a motor 800 for rotating the glass disc 300, and a feeder. And a computer including an input / output (I / O) controller for controlling the luminaire 520 and the solenoid valve, a monitor for providing a user interface, and the like.

Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. . Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

The present invention through the above configuration has the effect of doubling the inspection speed of the electronic component by aligning the electronic components transmitted from the hopper through the ball feeder, the electronic component supply unit and the aligner in a double row.

In addition, by making it possible to photograph the appearance of the electronic parts that are aligned in a row through the minimum camera means, it is possible to simplify the configuration of the device and reduce the manufacturing cost of the device.

In addition, it is possible to maximize the efficiency of the electronic component inspection by enabling the inspection of both parts of at least two or more electronic components at the same time through a glass disk made of a multilayer.

Claims (12)

delete An electronic component supply unit (100) including a hopper (110) for loading a plurality of electronic components and a feeder (120,130) for feeding electronic components sequentially from the hopper (110); An electronic component alignment unit 200 for arranging and arranging the electronic components supplied from the electronic component supply unit 100 to the glass original plate 300 without vibration; A glass original plate 300 on which electronic components aligned through the electronic component alignment unit 200 are disposed; An electronic component position detector 400 for detecting a position of the electronic component disposed on the glass disc 300; Electronic component photographing unit 500 including a plurality of cameras 510 for photographing the four upper, lower, left, and right sides of the electronic component and lighting means 520 attached to each of the cameras 510 to provide illumination to the electronic component to be photographed. ); Electronic component discharge unit 600 for classifying the electronic component by discharging the compressed air according to the determination of the quality of the electronic component and The solenoid valve 612 of the camera 510, the lighting unit 520, and the electronic component discharge unit 600 of the electronic component photographing unit 500 is controlled based on the signal received from the electronic component position detecting unit 400. In the electronic component inspection system comprising a control unit 700, The electronic parts supplied from the hopper to the plurality of feeders are arranged in a row, and the electronic parts arranged in the row are sequentially conveyed to the glass disc 300 through the vibration-free chute 210 and the aligner 220. Electronic component inspection system characterized by. The method of claim 2, The electronic component photographing unit includes two cameras for photographing the upper and lower surfaces of the electronic component proceeding in a double row, two cameras capable of photographing the left and right surfaces of the electronic component independently of the heat traveling by the electronic component, and each of the cameras. And an illumination means attached to provide illumination to the electronic component to be photographed. The method of claim 2, The electronic component photographing unit includes two cameras for photographing the upper and lower surfaces of the electronic component proceeding in a double row, two cameras for photographing the left and right surfaces of the electronic component at the same time according to each row of the electronic component, and each of the cameras. And a lighting unit attached to provide illumination to the electronic component to be photographed, and a mechanism for simultaneously photographing the left and right surfaces of the electronic component according to each row with a single camera. The method of claim 4, wherein The apparatus includes a primary mirror that primarily reflects the left and right images of the electronic component toward the camera, and a secondary that modifies the path of the image signal such that the image signal reflected through the primary mirror is incident perpendicularly to the camera lens. Electronic component inspection system comprising a mirror. An electronic component supply unit (100) including a hopper (110) for loading a plurality of electronic components and a feeder (120,130) for feeding electronic components sequentially from the hopper (110); An electronic component alignment unit 200 for arranging and arranging the electronic components supplied from the electronic component supply unit 100 to the glass original plate 300 without vibration; A glass original plate 300 on which electronic components aligned through the electronic component alignment unit 200 are disposed; An electronic component position detector 400 for detecting a position of the electronic component disposed on the glass disc 300; Electronic component photographing unit 500 including a plurality of cameras 510 for photographing the four upper, lower, left, and right sides of the electronic component and lighting means 520 attached to each of the cameras 510 to provide illumination to the electronic component to be photographed. ); Electronic component discharge unit 600 for classifying the electronic component by discharging the compressed air according to the determination of the quality of the electronic component and The solenoid valve 612 of the camera 510, the lighting unit 520, and the electronic component discharge unit 600 of the electronic component photographing unit 500 is controlled based on the signal received from the electronic component position detecting unit 400. In the electronic component inspection system comprising a control unit 700, The glass disc is composed of multiple layers, and the electronic components supplied to the feeders formed in plural from the hopper are conveyed to the glass discs composed of the multilayers via the vibration-free chute 210 and the aligner 220, respectively. Electronic component inspection system. The method of claim 6, The electronic component photographing unit includes two cameras for photographing the upper and lower surfaces of the electronic component proceeding in multiple layers, two cameras capable of simultaneously photographing the left and right surfaces of the electronic component irrespective of the layer where the electronic component proceeds, and the camera And an illuminating means attached to each one to provide illumination to the electronic component to be photographed. The method according to claim 3 or 7, The camera is an electronic component inspection system using a telecentric lens that does not change the size and focus of the object image according to the distance between the electronic component and the lens. delete The method according to claim 2 or 6, The feeder includes an electronic component inspection system comprising a ball feeder (120) and a line feeder (130) that vibrates by the attraction and repulsive force of the magnet. The method according to claim 2 or 6, The electronic component position detecting unit 400 recognizes the position of the electronic component by calculating the number of pulses according to the rotation of the motor and the trigger sensor 410 for generating a position determination signal of the electronic component disposed on the glass disc 300. Electronic component inspection system comprising a motor controller. The method according to claim 2 or 6, The electronic component position detecting unit 400 includes a trigger sensor for generating a trigger signal when the electronic component passes, and an encoder for generating an encoder value corresponding to the trigger signal.

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