KR20200087539A - Apparatus and method for detecting an electronic part - Google Patents

Abstract

The present invention discloses an apparatus and a method for detecting an electronic component. The present invention includes: a light source unit; a reflective unit having an opening therein, connected to the light source unit, and refracting the light emitted from the light source unit into the opening; and an imaging unit for photographing a lead when the lead of the electronic component is disposed in the opening.

Description

Electronic part recognition device and electronic part recognition method {Apparatus and method for detecting an electronic part}

The present invention relates to an apparatus and method, and more particularly, to an electronic component recognition apparatus and an electronic component recognition method.

It is very important to locate the electronic components in order to mount them on a circuit board. At this time, various methods can be used to recognize electronic components. In particular, the electronic component can determine the position of the electronic component by radiating light directly onto the electronic component and photographing a reflected image or photographing a shadow.

In this case, in order to obtain an image of the electronic component clearly, light must be irradiated to the electronic component from various directions. At this time, a plurality of devices for generating light may be provided to supply the electronic parts with light in various directions of the electronic parts.

However, in such a case, it may be difficult to obtain a clear image of an electronic component according to interference or positions between devices generating a plurality of lights. In particular, when an electronic component has a lead, since the light must be accurately irradiated to the lead, alignment between the device and the lead generating light may be necessary.

Regarding the apparatus for recognizing such electronic components, Korean Patent Publication No. 1999-0086163 (invention name: image acquisition inspection apparatus using multiple illuminations, Applicant: LG Industrial Systems Co., Ltd.) is specifically disclosed.

Republic of Korea Publication No. 1999-0086163

Embodiments of the present invention are to provide an electronic component recognition device and an electronic component recognition method.

An aspect of the present invention includes a light source unit, an opening portion therein, connected to the light source unit, and a reflecting portion for refracting light emitted from the light source unit into the opening portion, and when an electronic component lead is disposed in the opening portion It is possible to provide an electronic component recognition device including an imaging unit for photographing the lead.

In addition, a body part fixing the reflection part and the imaging part may be included.

In addition, a plurality of the reflective parts are provided to be separated from each other, and the plurality of imaging parts are provided to correspond to the respective reflective parts, and may further include a blocking plate disposed on the body part to partition the imaging parts adjacent to each other.

In addition, the reflector may include a first reflector and a second reflector disposed to be connected to the first reflector.

In addition, the light source unit, the light generating unit is disposed on the first reflecting unit to emit light, and disposed between the first reflecting unit and the second reflecting unit to emit light emitted from the photo-generating unit in the second A light diffusion unit that diffuses into the opening of the reflection unit may be included.

In addition, the light source unit may include a light generating unit for generating light and a light diffusion unit for diffusing light emitted from the light generating unit.

In addition, the light source unit, a light generating unit for generating light, and is disposed on the reflection unit, the light diffusion unit for diffusing the light emitted from the light generation unit, the light generation unit and the light diffusion unit connected to the A light guide guiding light emitted from the light generating unit to the light diffusion unit may be included.

Another aspect of the present invention, the step of emitting light linearly to the outside, the step of infinitely reflecting the light inside the opening, and placing at least a portion of the lower end of the electronic component so as to overlap the opening, the electron It is possible to provide a method for recognizing an electronic component, including photographing a part of the light impinging on the lower part of the component and locating the electronic component.

In addition, the method may further include diffusing the light in a linear form.

Also, the position recognition of the electronic component may be performed simultaneously in a plurality of spaces.

In embodiments of the present invention, it is possible to recognize a lead of a component through a simple structure. Embodiments of the invention are capable of recognizing various types of components.

In embodiments of the present invention, it is possible to photograph a lead of a component with a clear image.

1 is a perspective view showing an electronic component recognition device according to an embodiment of the present invention.
FIG. 2 is a perspective view showing a light source part and a reflection part shown in FIG. 1.
3 is a cross-sectional view showing a light source unit illustrated in FIG. 2.
4 is a plan view showing the reflector shown in FIG. 2.
FIG. 5 is a front view showing a method of recognizing a component through the electronic component recognition device illustrated in FIG. 1.
6 is a plan view showing a light source unit and a reflection unit of the electronic component recognition apparatus according to another embodiment of the present invention.
7 is a cross-sectional view showing the first light source unit shown in FIG. 6.
8 is a plan view showing the first reflector illustrated in FIG. 1.
9 is a perspective view showing an electronic component recognition device according to another embodiment of the present invention.
10 is a plan view showing a light source unit and a reflection unit illustrated in FIG. 9.
11 is a plan view showing a reflector shown in FIG. 10.

The present invention will become apparent with reference to the embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various different forms, and only the present embodiments allow the disclosure of the present invention to be complete, and the general knowledge in the technical field to which the present invention pertains. It is provided to fully inform the holder of the scope of the invention, and the invention is only defined by the scope of the claims. On the other hand, the terms used in this specification are for describing the embodiments and are not intended to limit the present invention. In the present specification, the singular form also includes the plural form unless otherwise specified in the phrase. As used herein, "comprises" and/or "comprising" refers to the components, steps, operations and/or elements mentioned above, the presence of one or more other components, steps, operations and/or elements. Or do not exclude additions. Terms such as first and second may be used to describe various components, but components should not be limited by terms. The terms are only used to distinguish one component from other components.

1 is a perspective view showing an electronic component recognition device according to an embodiment of the present invention. FIG. 2 is a perspective view showing a light source part and a reflection part shown in FIG. 1. 3 is a cross-sectional view showing a light source unit illustrated in FIG. 2. 4 is a plan view showing the reflector shown in FIG. 2. FIG. 5 is a front view showing a method of recognizing a component through the electronic component recognition device illustrated in FIG. 1.

1 to 5, the electronic component recognition device 100 may include a light source unit 110, a reflection unit 120, an imaging unit 130, and a body unit 140.

The light source unit 110 may generate light, and may provide linear light to the outside. The light source unit 110 may include a light generation unit 111, a light diffusion unit 112, and a light source body unit 113. The photo-generating unit 111 may include a laser diode, and may supply linear light to the outside. The light diffusion unit 112 may diffuse the light generated by the light generation unit 111. At this time, the light diffusion unit 112 may be formed integrally with the light generating unit 111 or disposed to be spaced apart from the light generating unit 111. The light diffusion unit 112 may be formed in various forms. For example, the light diffusion unit 112 may include a diffractive optical element (DOE). In addition, the light diffusion unit 112 is arranged perpendicular to the path of the light (for example, in the X direction in FIG. 1), and may include a lens having a circular or elliptical cross section. Hereinafter, for convenience of description, the light diffusion unit 112 will be described in detail mainly in the case of including a diffractive optical element. The light source body portion 113 accommodates the light generating portion 111 and the light diffusion portion 112 therein, and the light generating portion 111 and the light diffusion portion 112 can be fixed to the reflection portion 120. . At this time, a bolt or the like that can adjust the position of the light diffusion unit 112 may be disposed on the light source body unit 113 to contact the light diffusion unit 112.

The reflector 120 may be connected to the light source unit 110 to reflect light supplied from the light source unit 110. At this time, the reflector 120 may repeat light infinitely to form a surface where light overlaps each other. The reflective unit 120 may include a reflective housing 121 and a reflective plate 122. An insertion hole or an insertion groove may be formed in the reflective housing 121 so that the light source unit 110 is inserted. As another embodiment, the reflective housing 121 may further include a separate structure for guiding light emitted from the light source unit 110. In addition, the reflective housing 121 may form a closed loop. At this time, the reflective housing 121 may include an opening 123 therein. The shape of the opening 123 may vary. For example, the shape of the opening 123 may include circular, elliptical, or polygonal shapes. Hereinafter, for convenience of description, the opening 123 will be described in detail mainly in the case of a rectangle. The reflective plate 122 may be in the form of a mirror. For example, the reflective plate 122 may include metal, plastic, or the like, which has been subjected to a mirror surface treatment. In another embodiment, the reflective plate 122 may include glass having a mirror surface. At this time, the reflective plate 122 is not limited to the above, and may include all materials and all shapes that reflect light supplied from the outside. Hereinafter, for convenience of description, the reflection plate 122 will be described in detail mainly in the case of including a mirror. The reflective plate 122 as described above may not be provided with a portion of the reflective housing 121 through which light supplied from the light source unit 110 is incident, and may be disposed in other parts of the reflective housing 121. In this case, the reflective plates 122 may not be completely connected to each other and may be partially cut. In another embodiment, the reflective plate 122 may include a member that reflects light incident from the light source unit 110 while transmitting light supplied from the light source unit 110 to reflect the incident light. In this case, the reflection plate 122 may include a half mirror, and the half mirror may be disposed in a portion of the reflective housing 121 where light is incident from the light source unit 110 toward the opening 123. Hereinafter, for convenience of description, the reflective plate 122 will be described in detail, focusing on the case where the light is not disposed in a portion incident on the opening 123.

The imaging unit 130 may be disposed to face the head unit 10. At this time, the imaging unit 130 may include a lens and an image sensor.

The body unit 140 may connect the imaging unit 130 and the light source unit 110 and the reflection unit 120 to each other. At this time, a space may be formed inside the body 140, and light may not be incident from the outside. That is, the body part 140 may be formed in the form of a dark box. The body part 140 may include a main body part 141 having a space therein and a blocking plate 142 disposed on the main body part 141. At this time, the blocking plate 142 may partition the internal spaces of the main body portion 141 from each other. In particular, the blocking plate 142 can completely separate the inner space of the main body portion 141. In this case, the light source unit 110, the reflection unit 120 and the imaging unit 130 may be provided in plural, respectively. At this time, each light source unit 110, each reflection unit 120 and each imaging unit 130 may be arranged to correspond to each other, one light source unit 110, one reflection unit 120 and One imaging unit 130 may be disposed in one space partitioned by the blocking plate 142. When the light source unit 110, each reflection unit 120 and each imaging unit 130 are arranged to correspond to each other as described above, the blocking plate 142 is adjacent to each light source unit 110, each reflection unit 120 And by being disposed between each imaging unit 130, each imaging unit 130 may obtain an image with no or reduced noise. In particular, in this case, a separate lighting unit (not shown) may be disposed in the main body unit 141.

On the other hand, the electronic component recognition device 100 as described above may be disposed and utilized in various devices. For example, the electronic component recognition device 100 transfers an electronic component P such as a semiconductor chip, a capacitor, and the like, and places the electronic component P on a circuit board (PCB) and mounts the electronic component (P). You can check the posture, etc. Particularly, when the lead L protrudes from the electronic part P, the electronic part recognition apparatus 100 detects the light reflected from the lead L by irradiating light to the lead L, thereby detecting the electronic part P It is possible to check the position and posture.

Specifically, the head unit 10 may pick up the electronic component P from the electronic component supply unit 20 and transfer it to the electronic component mounting unit 30 to be mounted on the circuit board (PCB). At this time, the head unit 10 is capable of linear movement in the vertical direction and vertical movement.

The head unit 10 may pick up the electronic component P from the electronic component supply unit 20 and transfer it to the electronic component recognition device 100. At this time, the light generating unit 111 may generate light and supply it to the light diffusion unit 112. In this case, the light emitted from the light generator 111 may be linear. The light diffusion unit 112 may emit linear light by dividing it into a plurality of lights or emit light by expanding a range of light.

As described above, the light that has passed through the light diffusion unit 112 may collide with the reflection plate 122 at various angles, and may reach and reflect the reflection plates 122 at various positions. In this case, the light may be reflected from the reflective plate 122 in various directions. In addition, the light reflected from a portion of the reflective plate 122 reaches the other portion of the reflective plate 122, and the light reaching the other portion of the reflective plate 122 is reflected to another portion of the reflective plate 122 Can reach In this case, the light may be continuously reflected from the reflective plate 122, and may be infinitely reflected inside the opening 123. In particular, when a certain time has elapsed, the entire opening 123 may be filled with reflected light.

When the head portion 10 arranges the lead L of the electronic component P in the opening 123 as described above, a part of the light passing through the opening 123 collides with each lead L, so that the course is routed. can be changed. Particularly, a part of the light colliding with each lead L may change the path toward the imaging unit 130 and enter the imaging unit 130. In this case, the portion of each lead L may be detected by the imaging unit 130 due to the light colliding with each lead L. At this time, when a plurality of leads L are provided, the outer portion of the plurality of leads L is a dark portion, and the imaging unit 130 can recognize the outline.

When the above process is completed, the imaging unit 130 may transmit the captured image to a separately provided control unit (not shown). At this time, the control unit may determine the position and posture of the electronic component P based on the image taken by the imaging unit 130. When the control unit compares the photographed image with a preset image and determines that the position and posture of the electronic component P is different from the preset position and posture, the control unit controls the head unit 10 to change the posture of the head unit 10. (10) can be controlled. In another embodiment, the control unit may control the head portion 10 by varying the movement path of the head portion 10 so that the electronic component P is mounted on the correct position of the circuit board PCB. Thereafter, the control unit moves the head unit 10 to the electronic component mounting unit 30, and the head unit 10 so that the electronic component P of the head unit 10 is mounted on the correct mounting position of the circuit board (PCB). Can be controlled.

Therefore, the electronic component recognition device 100 can recognize the electronic component P through a simple structure. In particular, the electronic component recognition device 100 can accurately and accurately recognize the lead L of the electronic component P.

The electronic component recognition apparatus 100 may acquire a clear image of the lead L of the electronic component P by arranging the lead L on a surface through which light passes infinitely and repeatedly.

The electronic component recognition apparatus 100 can minimize the overall size of the electronic component recognition apparatus 100 by minimizing the components and can be installed in various places and various apparatuses.

In addition, the electronic component recognition device 100 is disposed in a small area on the movement path of the head portion 10, thereby minimizing the movement path of the head portion 10.

6 is a plan view showing a light source unit and a reflection unit of the electronic component recognition apparatus according to another embodiment of the present invention. 7 is a cross-sectional view showing the first light source unit shown in FIG. 6. 8 is a plan view showing the first reflector illustrated in FIG. 1.

6 to 8, the electronic component recognition device (not shown) may include a light source unit 110-1, a reflector unit 120-1, an imaging unit (not shown), and a body unit (not shown). have. At this time, since the imaging unit and the body unit are the same or similar to those described in FIGS. 1 to 5, detailed descriptions thereof will be omitted.

A plurality of light source units 110-1 and reflector units 120-1 may be provided. At this time, the number of light source units 110-1 and the number of reflection units 120-1 may be the same. Hereinafter, for convenience of description, the light source unit 110-1 and the reflection unit 120-1 will be described in detail focusing on two cases.

The light source unit 110-1 may include a first light source unit 110-1A and a second light source unit 110-1B disposed to be spaced apart from each other. Also, the reflector 120-1 may include a first reflector 120-1A and a second reflector 120-1B connected to each other.

In this case, the first light source unit 110-1A and the second light source unit 110-1B may be disposed on the first reflector 120-1A or the second reflector 120-1B. In this case, the first light source unit 110-1A and the second light source unit 110-1B may be disposed in the same direction as each other based on the relationship between the first reflector 120-1A and the second reflector 120-1B. have.

The first light source unit 110-1A is connected to the first light generator 111-1A and the first light generator 111-1A, and receives light emitted from the first light generator 111-1A. A first light diffusion unit 112-1A for diffusion may be included. Further, the first light source unit 110-1A includes a first light source body unit 113-1A in which the first light generating unit 111-1A and the first light diffusion unit 112-1A are received and fixed therein. It can contain. At this time, the first photo-generation unit 111-1A may include a laser diode as described above. In addition, as described above, the first light diffusion unit 112-1A may include a lens or diffractive optical element having a circular or elliptical columnar cross section. Hereinafter, for convenience of description, the first light diffusion unit 112-1A will be described in detail focusing on a case including a lens. The first light diffusion unit 112-1A may be formed in a column shape. At this time, the longitudinal direction of the first light diffusion unit 112-1A is a direction perpendicular to the traveling direction of the light emitted from the first light generation unit 111-1A (for example, the Y direction in FIG. 7) (eg For example, X direction in FIG. 7 ). In the above case, the light emitted from the first light generator 111-1A passes through the first light diffuser 112-1A, and thus the irradiation range is widened to enter the first reflector 120-1A. Can.

The second light source unit 110-1B may include a second light generation unit 111-1B and a second light diffusion unit 112-1B. At this time, the second light generating unit 111-1B may be disposed on the first reflective housing 121-1A. The second light diffusion unit 112-1B may be spaced apart from the second light generation unit 111-1B and disposed between the first reflective housing 121-1A and the second reflective housing 121-1B. In this case, the light emitted from the second light generator 111-1B may pass through the opening of the first reflective housing 121-1A and enter the opening of the second reflective housing 121-1B. In particular, a groove, a hole, or the like may be formed in the first reflective housing 121-1A and the second reflective housing 121-1B so that light from the second light generating unit 111-1B passes. The second light diffusion unit 112-1B may have the same or similar shape to the first light diffusion unit 112-1A. At this time, the second light diffusion unit 112-1B is emitted from the second light generation unit 111-1B, passes through the first reflection housing 121-1A, and diffuses the incident light to the second reflection housing ( 121-1B).

In this case, the first light source unit 110-1A and the second light source unit 110-1B are disposed in the same direction to reduce the installation space of the electronic component recognition device.

The first reflective unit 120-1A may include a first reflective housing 121-1A and a first reflective plate 122-1A. In this case, the first reflective housing 121-1A may be formed in various forms. In particular, the corner portion of the first reflective housing 121-1A may be curved (or rounded). In addition, the first reflective plate 122-1A may be disposed on the inner surface of the first reflective housing 121-1A along the shape of the corner portion of the curved first reflective housing 121-1A. The first reflective plate 122-1A is a portion through which light emitted from the first light source unit 110-1A passes or a portion of the first reflective housing 121-1A in which the second light generating unit 111-1B is disposed. It may not be placed. In another embodiment, the first reflective plate 122-1A includes a portion through which light emitted from the first light source unit 110-1A passes or a first reflective housing 121 in which the second light generating unit 111-1B is disposed. It is also possible to include a half mirror disposed in the -1A) portion. Since the first reflective plate 122-1A as described above is the same or similar to that described in FIGS. 1 to 5, detailed description will be omitted.

The second reflection unit 120-1B may include a second reflection housing 121-1B and a second reflection plate 122-1B. At this time, the second reflective housing 121-1B may be connected to the first reflective housing 121-1A. Further, the second reflective plate 122-1B may be disposed on the inner surface of the second reflective housing 121-1B. Since the second reflective housing 121-1B and the second reflective plate 122-1B are the same or similar to the first reflective housing 121-1A and the first reflective plate 122-1A described above, the detailed description Will be omitted.

The operation of the recognition device of the electronic component as described above may be the same or similar to that described with reference to FIGS. 1 to 5.

Specifically, when a plurality of head parts (not shown) are disposed on the first reflector 120-1A and the second reflector 120-1B, respectively, the plurality of electronic components (not shown) are respectively disposed on the first light source unit 110-. 1A) may provide light into the first reflector 120-1A, and the second light source unit 110-1B may provide light to the second reflector 120-1B. At this time, the light emitted from the second light generator 111-1B passes through the inside of the first reflector 120-1A and enters the second light diffuser 112-1B, and the second light diffuser ( Light diffused through 112-1B) may enter the second reflector 120-1B and be reflected infinitely.

As described above, when light is infinitely reflected inside each of the first reflector 120-1A and the second reflector 120-1B, the first reflector 120-1A and the second reflector 120-1B It is possible to detect the position, posture, and the like of the electronic component by detecting light hitting the lead of the electronic component disposed in each of the imaging units.

Thereafter, it is possible to adjust the position and posture of the electronic component to a predetermined position and posture by adjusting the head part based on the image taken by the imaging part. As another embodiment, when the electronic component is mounted on a circuit board (not shown) based on an image photographed by the imaging unit, adjusting the operation of the head portion so that the electronic component is disposed at the correct mounting position of the circuit board It is possible.

Therefore, the electronic component recognition apparatus can minimize interference with other components and minimize the installation space of the apparatus itself by arranging each light source unit 110-1 in one direction.

In particular, in the case where the electronic component includes a lead, it is impossible to accurately acquire an image of the lead of the electronic component due to light incident on the lead of the electronic component at various angles in the case of directly irradiating light to the electronic component. By doing so, it may be difficult to accurately locate the electronic component.

However, the electronic component recognition device forms an area through which light reflected by each reflector 120-1 passes through light emitted from each light source unit 110-1, and leads the electronic component to the area. It is possible to accurately and accurately recognize the electronic component by increasing the recognition rate of the electronic component even when the electronic component includes a lead by arranging and detecting light reflected from the lead.

9 is a perspective view showing an electronic component recognition device according to another embodiment of the present invention. 10 is a plan view showing a light source unit and a reflection unit illustrated in FIG. 9. 11 is a plan view showing a reflector shown in FIG. 10.

9 to 11, the electronic component recognition device 100-2 includes a light source unit 110-2, a reflection unit 120-2, an imaging unit 130-2, a body unit 140-2, and A direct light source unit 150-2 may be included. At this time, the body portion 140-2 may include a main body portion 141-2 and a blocking plate 142-2. Since the imaging unit 130-2 and the body unit 140-2 are the same or similar to those described in FIGS. 1 to 5, detailed descriptions thereof will be omitted.

At least one light source unit 110-2 may be provided. Hereinafter, for convenience of description, a description will be given focusing on a case where a plurality of light source units 110-2 are provided.

The light source unit 110-2 may include a light generating unit 111-2, a light diffusion unit 112-2, a light source body unit 113-2, and a light guide 114-2. The light generating unit 111-2 may be accommodated inside the light source body unit 113-2 and disposed on the body unit 140-2. At this time, the photo-generating unit 111-2 may include a laser diode. The light diffusion unit 112-2 may be disposed on each reflection unit 120-2. At this time, the light diffusion unit 112-2 may diffuse light into each reflection unit 120-2. The optical guide 114-2 may include an optical fiber or the like to connect the light diffusion unit 112-2 and the light generation unit 111-2. In this case, the light guide 114-2 may guide the light generated from the light generating unit 111-2 to the light diffusion unit 112-2.

In this case, the light generating unit 111-2 may be disposed in another device or other place in addition to the body unit 140-2. In particular, in the above case, the light generating unit 111-2 may be arranged according to a positional relationship with other devices.

The reflector 120-2 may include a reflective housing 121-2 and a reflective plate 122-2. At this time, the reflective housing 121-2 may include an opening 123-2 therein, and the shape of the opening 123-2 may be an octagonal shape. For example, the opening 123-2 may have a rectangular shape and a chamfered edge. A plurality of reflective plates 122-2 may be provided and disposed on the inner surface of the reflective housing 121-2. In this case, the reflective plate 122-2 is also disposed in the chamfered opening 123-2, so that it is possible to reflect light incident into the opening 123-2 from the entire inner surface of the reflective housing 121-2.

The reflective plate 122-2 as described above is a corner disposed at a chamfered corner portion of the straight reflecting plate 122-2A and the reflective housing 121-2 disposed on a flat portion of the reflective housing 121-2. It may include a reflective plate (122-2B). At this time, the straight reflecting plate 122-2A and the corner reflecting plate 122-2B may be integrally formed. As another embodiment, the straight reflecting plate 122-2A and the corner reflecting plate 122-2B are separated from each other and may be individually disposed on the reflective housing 121-2. Hereinafter, for convenience of description, a description will be given focusing on the case where the straight reflecting plate 122-2A and the corner reflecting plate 122-2B are disposed on the reflective housing 121-2 in a state of being separated from each other.

The direct light source unit 150-2 may directly irradiate light to an electronic component (not shown). At this time, the direct light source unit 150-2 may include an organic light emitting diode, and may be provided in plural. In this case, the plurality of direct light source parts 150-2 are arranged to be spaced apart from each other, and may be arranged inside the body part 140-2 to form columns and rows. Particularly, the direct light source unit 150-2 may be used in the case of an electronic component without a lead, a surface mount device (SMD) such as a shape in which the lead is formed on the side of the electronic component.

Looking at the operation of the electronic component recognition device as described above, when the type of the electronic component is SM, a head (not shown) adsorbs the electronic component and places it on the reflector 120-2 or the electronic component recognition device. After being placed on the image, light may be supplied to the electronic component through the direct light source unit 150-2. The light supplied from the direct light source unit 150-2 may collide with the electronic component itself and be reflected and then enter the imaging unit 130-2. At this time, in order to remove noise of the image of the electronic component adsorbed on the head portion adjacent to each other photographed by each imaging unit 130-2 or to obtain a clear image, the blocking plate 142-2 is the main body portion 141 -2) The interior space can be divided.

On the other hand, if the electronic component is a form in which the lead (not shown) is drawn from the lower surface of the electronic component in the direction of the imaging unit 130-2 vertically, the operation of the direct light source unit 150-2 is stopped. Each light source unit 110-2 may operate. The light generated by each light source unit 110-2 may be supplied into each reflection unit 120-2 through each light guide 114-2 and each light diffusion unit 112-2.

Subsequently, when the light incident from inside each reflector 120-2 is infinitely reflected, the inside of the reflector 120-2 may be shaped like a surface light source. At this time, the head portion may be arranged such that the lead of the electronic component overlaps the reflection portion 120-2.

The light colliding with the lead is reflected and incident on the imaging unit 130-2, and the imaging unit 130-2 can acquire an image of the lead of the electronic component through the reflected light.

Thereafter, the control unit (not shown) may determine the position and posture of the electronic component based on the image taken by the imaging unit 130-2, and may align the position and posture of the electronic component through the head unit. have. In another embodiment, the controller determines the position of the circuit board (not shown) on which the electronic component is to be mounted, and then places the electronic component at the position to be mounted on the circuit board based on the detected result. It is possible to mount.

Therefore, the electronic component recognition device 100-2 can be disposed in a narrow installation place, and interference with other devices can be minimized.

The electronic component recognition device 100-2 may increase the recognition rate of the electronic component having a lead. In addition, the electronic component recognition apparatus 100-2 can recognize the electronic components in various forms.

The electronic component recognition device 100-2 can accurately and accurately recognize the electronic component through a simple structure.

Although the invention has been described in connection with the preferred embodiments mentioned above, it is possible to make various modifications or variations without departing from the spirit and scope of the invention. Therefore, the scope of the appended claims will include such modifications or variations as long as they belong to the subject matter of the present invention.

10: head
20: electronic component supply unit
30: Electronic parts mounting department
100,100-2: Electronic component recognition device
110,110-1,110-2: light source unit
120,120-1,120-2: Reflector
130,130-2: imaging unit
140.140-2: Body part
150-2: direct light source

Claims (10)

Light source unit;
A reflection unit having an opening therein, connected to the light source unit, and refracting light emitted from the light source unit into the opening; And
And an image pickup unit that photographs the lead when the lead of the electronic component is disposed in the opening. According to claim 1,
And a body part fixing the reflection part and the imaging part. According to claim 2,
A plurality of the reflective parts are provided to be separated from each other,
A plurality of imaging units are provided to correspond to the reflection units,
And a blocking plate disposed on the body part and partitioning the imaging parts adjacent to each other. According to claim 1,
The reflector,
A first reflector; And
And a second reflector disposed to be connected to the first reflector. The method of claim 4,
The light source unit,
A light generating unit disposed on the first reflection unit to emit light; And
And a light diffusion unit disposed between the first reflection unit and the second reflection unit to diffuse light emitted from the light generation unit into an opening of the second reflection unit. According to claim 1,
The light source unit,
A light generating unit that generates light;
And an optical diffusion unit that diffuses light emitted from the optical generation unit. According to claim 1,
The light source unit,
A light generating unit that generates light;
A light diffusion unit disposed on the reflection unit and diffusing light emitted from the light generation unit; And
And an optical guide connecting the light generator and the light diffuser to guide light emitted from the light generator to the light diffuser. Emitting light linearly to the outside;
Infinitely reflecting the light inside the opening;
Disposing at least a portion of the lower end of the electronic component so as to overlap the opening; And
And detecting a position of the electronic component by photographing a part of the light impinging on the lower end of the electronic component. The method of claim 8,
And diffusing the light in a linear form. The method of claim 8,
The method of recognizing the position of the electronic component is performed simultaneously in a plurality of spaces.

Images