KR101645133B1

KR101645133B1 - Jig for harness vision inspecting, apparatus for vision inspecting, method for vision inspecting, and system for vision inspecting using the jig

Info

Publication number: KR101645133B1
Application number: KR1020150062694A
Authority: KR
Inventors: 이용호
Original assignee: 이용호
Priority date: 2015-05-04
Filing date: 2015-05-04
Publication date: 2016-08-12

Abstract

The present invention relates to a jig for inspecting a harness vision, a vision inspecting apparatus using the same, a vision inspecting method, and a vision inspecting system. The jig for inspecting a harness vision according to an embodiment of the present invention includes a connector insertion part into which the connector of a harness is inserted, and a reflection part which is located on one side of the connector insertion part, has a V-shaped cross section due to external lighting, and reflects a multilayered cable connected to the connector of the harness with a predetermined reflectivity. Thereby, vision inspection can be performed on the harness cable which is arranged with a multilayer through a reflected image.

Description

TECHNICAL FIELD The present invention relates to a jig for harness vision inspection, a vision inspection apparatus, a vision inspection method, and a vision inspection system using the jig, a vision inspection system, a vision inspection system,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a jig for harness vision inspection, a vision inspection apparatus, a vision inspection method, and a vision inspection system using the same, and more particularly, Technology is disclosed.

Harness is a part that plays an essential role in automobiles and electronics. In particular, since the automobile is used for a variety of purposes such as an engine system harness, a control system harness, and a battery system harness, if there is a problem in the harness connection, it can cause a fatal problem that may cause malfunction of each connection device. Therefore, in order to prevent the failure of assembled products due to the harness, harness manufacturers conduct full inspection.

Since the wire color inspection of the harness inspection equipment which is currently being developed is developed by focusing on the pixel inspection method, the pixel inspection method is to fix the individual wires by fixing a jig for securing the wire to recognize and process the accurate color information, There was a hassle.

Korean Patent Laid-Open Publication No. 10-2004-0096894 (November 17, 2004) discloses a method for automatically detecting a harness defect, wherein a reverse inspection of a wire is performed using a color data reference value, Setting an error range; photographing a wire with a CCD camera by reflecting light while irradiating the wire; Generating a color data value of the color acquisition area; and comparing the generated color data value and the reference value within an allowable error range.

However, in the above-described prior art, when the wires of a harness are formed as a single layer and multiple wires are arranged in multiple stages, there is a limit in discriminating whether the wire is reversed, misplaced, or not inserted from the upper and lower vision inspection.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to provide a method and apparatus for visually inspecting a harness cable arranged in multiple stages through a reflection image and to obtain a clear reflection image by rotating the reflection unit according to the arrangement of the harness cable, And to provide a vision inspection apparatus, a vision inspection method, and a vision inspection system using the jig for harness vision inspection.

A harness vision inspection jig according to an embodiment of the present invention includes a connector insertion portion into which a connector of a harness is inserted, and a connector insertion portion which is located at one side of the connector insertion portion, And a reflector for reflecting the multi-stage cable connected to the connector at a predetermined reflectance.

The apparatus may further include a driving unit positioned below the reflection unit and rotating the reflection unit to adjust the angle of the reflection unit.

According to another aspect of the present invention, there is provided an apparatus for inspecting a vision using a jig for harness vision inspection, including a sensing unit for sensing whether a harness connector is inserted into a harness vision inspection jig, An image acquiring unit for acquiring a reflection image by irradiating a reflection part formed in a V-shape in cross section to a lower part of the multi-end cable of the harness when the connector is inserted; And determining whether the harness is defective by analyzing the arrangement.

A vision inspection method of a vision inspection apparatus according to another embodiment of the present invention includes the steps of sensing whether a connector of a harness is inserted into a harness vision inspection jig and a step of inserting the connector of the harness into a harness vision inspection jig The method comprising the steps of: obtaining a reflection image by irradiating illumination with a cross section formed in a V-shape and positioned at a lower portion of the multi-end cable of the harness; and analyzing the arrangement of the multi- And judging whether or not it is defective.

According to another aspect of the present invention, there is provided a vision inspection system using a jig for harness vision inspection, comprising: a connector insertion portion into which a connector of a harness is inserted; a connector insertion portion which is located at one side of the connector insertion portion, And a reflector for reflecting the multi-stage cable connected to the connector of the harness at a predetermined reflectance, an illuminator for illuminating the multi-stage cable at an upper portion of the reflector with a predetermined angle, A harness vision inspection device for acquiring a reflection image of the multi-stage cable reflected through the reflector and determining whether the harness connector is defective when insertion of the harness connector is detected in the connector housing part; , An arm that receives the vision inspection device and blocks light from the outside It includes parts.

Accordingly, the harness cable arranged in multiple stages can be visually inspected through the reflection image. In addition, a clear reflection image can be obtained by rotating the reflecting portion according to the arrangement of the harness cable. In addition, vision inspection can be performed using a wireless communication device.

1 is a configuration diagram of a harness vision inspection system according to an embodiment of the present invention;
Fig. 2 is a configuration diagram of a harness vision inspection jig included in the harness vision inspection system of Fig. 1,
FIG. 3 is an exemplary view for explaining a modified embodiment of the harness vision inspection jig according to FIG. 2;
FIG. 4 is a configuration diagram of a harness vision inspection apparatus included in the harness vision inspection system according to FIG.
5 is a configuration diagram of a harness vision inspection apparatus according to another embodiment of the present invention.
FIG. 6 is a flowchart of a vision inspection method of the harness vision inspection apparatus according to FIG. 5,
7 is an exemplary view for explaining a reflection image according to the vision inspection method according to FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The terms used are terms selected in consideration of the functions in the embodiments, and the meaning of the terms may vary depending on the user, the intention or the precedent of the operator, and the like. Therefore, the meaning of the terms used in the following embodiments is defined according to the definition when specifically defined in this specification, and unless otherwise defined, it should be interpreted in a sense generally recognized by those skilled in the art.

1 is a configuration diagram of a harness vision inspection system according to an embodiment of the present invention.

Referring to FIG. 1, a harness vision inspection system 100 according to an embodiment of the present invention includes a harness vision inspection jig 110, an illumination unit 120, a harness vision inspection apparatus 130, .

The harness vision inspection jig 110 receives and fixes the harness. In this case, the harness is formed by connecting a cable formed in multiple stages to the connector. The harness vision inspection jig 110 reflects a predetermined angle when external illumination is incident in a state where the harness is fixed, and generates a reflection image to provide a vision inspection device 130 to be described later. In addition, the harness vision inspection jig 110 can detect whether or not the harness is electrically inserted through the connection terminal. A specific description of the harness vision inspection jig 110 will be described later with reference to Figs. 2 and 3. Fig.

The illumination unit 120 illuminates the multi-stage cable of the harness located at the upper portion of the harness vision inspection jig 110 at a preset angle. Since a plurality of cables are formed up and down in the multi-end cable of the harness, only some cables are visible at the top. The illumination unit 120 irradiates illumination on the multi-stage cable of the harness in a state where the interior is darkened, and the intensity and color of the illumination may be changed according to user setting.

The harness vision inspection apparatus 130 detects whether a connector is inserted into the harness vision inspection jig 110 and acquires a reflection image of the harness with respect to the multistage cable. For example, the harness vision inspection apparatus 130 can be implemented using a portable terminal device such as a smart phone, a tablet PC, and a notebook, but is not limited thereto. The harness vision inspection apparatus 130 analyzes the reflection image acquired from the harness vision inspection jig 110 to determine whether the harness is defective or not. In this case, the reflection image means an image for a multi-stage cable, and color information, arrangement information, and position information of all the cables can be analyzed to determine whether or not the cable is defective. A detailed description of the harness vision inspection apparatus 130 will be given later with reference to Figs. 4 and 5. Fig.

The darkroom unit 140 receives the harness vision inspection jig 110, the illumination unit 120, and the harness vision inspection apparatus 130 to block light from the outside. This is to prevent misjudgment from being interfered with outside light during vision inspection. For example, the dark room 140 preferably uses an acrylic plate having an inner wall treated with bead blasting or an anodized aluminum, but the present invention is not limited thereto. This is because the illumination applied to the harness vision inspection jig 110 through the illumination unit 120 is reflected on the inner wall surface of the dark room 140 and the distorted reflected image is reflected on the harness vision inspection apparatus 130 by the subsequent re- To block what is provided.

Fig. 2 is a configuration diagram of a harness vision inspection jig included in the harness vision inspection system of Fig. 1;

2, the harness vision inspection jig 110 includes a connector insertion portion 111 and a reflection portion 112. [ The connector insertion portion 111 has a connector of a harness inserted therein to fix the connector. In this case, the connector insertion portion 111 can be formed to be variable in accordance with the size and position of the connector of the harness. Further, when the connector of the harness is changed, it is also possible that the connector insertion portion 111 is replaced with another model. Preferably, the position of the harness connector maintains a distance capable of reflecting all of the multi-stage cables of the harness through a distance adjustment to the reflection section 112, which will be described later.

The reflective portion 112 is located at one side of the connector insertion portion 111 and is positioned below the multi-end cable of the harness. The reflector 112 has a V-shaped cross section. In this case, the multi-end cable of the harness is aligned with the center of the reflecting portion 112 when the connector is inserted into the connector inserting portion 111. The plurality of reflective portions 112 are inclined and positioned to face each other at a predetermined angle. When the external illumination is irradiated on the harness, a reflection image is generated from the reflection unit 112 and is transmitted to the outside. In this case, the surface of the reflecting portion 112 is formed to have a predetermined reflectance, and the reflectance may be changed by user setting.

3 is an exemplary view for explaining a modified embodiment of the harness vision inspection jig according to FIG.

3, the harness vision inspection jig includes a connector insertion portion 111, a reflection portion 112, and a driving portion 113.

The connector insertion portion 111 has a connector of a harness inserted therein to fix the connector. In this case, the connector insertion portion 111 can be formed to be variable in accordance with the size and position of the connector of the harness. Or when the connector of the harness is changed, the connector insertion portion 111 may be replaced with another model. Preferably, the position of the harness connector maintains a distance capable of reflecting all of the multi-stage cables of the harness through a distance adjustment to the reflection section 112, which will be described later.

The connector insertion portion 111 includes a connection terminal 111-1. When the connector of the harness is inserted, it can be contacted with the connection terminal 111-1 to sense whether it is electrically connected or not. The connector inserting unit 111 is electrically connected to the vision inspecting apparatus 130 to transmit an electrical signal to the outside of the harness. In this case, it is also possible to detect whether the harness is erroneously inserted or not inserted by using an electric signal according to the electrical connection.

Further, the reflection portion 112 can be rotated by forming a hinge axis at the center thereof. For example, the reflection unit 112 can generate a clear reflection image by adjusting the reflection angle according to the alignment position or the number of the multi-end cables of the harness. The reflecting portion 112 can be rotated by a driving portion 113 described later. Further, the plurality of reflecting portions 112 may be formed in multiple layers. For example, the reflector 112 may have a cross-sectional shape of 'V' or 'V'.

The driving unit 113 is positioned below the reflection unit 112 and rotates to adjust the angle of the reflection unit 112. The driving unit 113 may be a servo motor or a pneumatic cylinder, but is not limited thereto. The driving unit 113 is pivotally coupled to both sides of the reflection unit 112 and the angle of the reflection unit 112 can be changed according to the upward and downward movement. The driving unit 113 may rotate both sides of the reflecting unit 112 at the same rotation angle or both sides may rotate at different rotation angles. The operation displacement of the driving unit 113 can be set differently depending on the type and shape of the multi-stage cable of the harness.

FIG. 4 is a configuration diagram of a harness vision inspection apparatus included in the harness vision inspection system according to FIG. 1;

Referring to FIG. 4, the harness vision inspection apparatus 130 includes a reflection mirror 131, a camera 132, a communication unit 133, and a display 134. The harness vision inspection apparatus 130 may be implemented as a portable terminal device such as a smart phone, a tablet PC, a notebook, and the like.

The reflection mirror 131 is a member that reflects the reflection image reflected from the reflection portion to the camera 132, which will be described later. For example, the reflection mirror 131 forms a reflection surface inclined at an angle of 45 degrees on the upper part of the reflection part, and transmits a reflection image reflected from the reflection part to the camera 132. It is also possible to use the reflecting mirror 131 instead of a prism (not shown). Specifically, the reflection mirror 131 includes a bracket 131-1, a lens 131-2, and a reflector 131-3. The bracket 131-1 may have a through hole 131-11 formed at one side thereof and may be fixed to one side of the harness vision inspection apparatus 130 so as to be rotatable. The lens 131-2 serves to refract the reflection image at a predetermined refractive index. The reflector 131-3 serves to reflect an image passed through the lens 131-2 at a predetermined reflectance. In this case, the lens 131-2 and the reflector 131-3 can be formed so as to be rotatable from one side of the bracket 131-2.

The camera 132 acquires a reflection image reflected through the reflection mirror 131. For example, the camera 132 may be a CCD or CMOS type, but is not limited thereto. The camera 132 may use a predetermined magnification lens capable of obtaining a reflection image, and may be implemented in a stereo manner for analyzing a stereoscopic image, but the present invention is not limited thereto.

The communication unit 133 establishes network communication with an external communication device. The communication unit 133 is capable of Bluetooth, Wi-Fi, ZigBee, 3G, and 4G network communication. The communication unit 133 can transmit the information obtained from the reflection image to an external processing device.

The display 134 displays an image of the harness 10 acquired from the camera 132. The display 134 may be implemented as an LCD, LED lighting device. The display 134 outputs an analysis image so that the user can judge whether the user is bad or not.

FIG. 5 is a configuration diagram of a harness vision inspection apparatus according to another embodiment of the present invention, and FIG. 6 is a flowchart of a vision inspection method of the harness vision inspection apparatus according to FIG.

Referring to FIGS. 5 and 6, the harness vision inspection apparatus 500 includes a sensing unit 510, an image acquisition unit 520, and a failure determination unit 530.

The sensing unit 510 senses whether the connector of the harness is inserted into the harness vision inspection jig (S610). For example, as shown in FIG. 3, it is possible to detect whether or not the harness is inserted through the connector terminal into the connector insertion portion 111. The sensing unit 510 may detect whether the harness is inserted or not through the electrical connection, or may detect whether the harness is inserted through the sensor.

When the connector of the harness is inserted into the harness vision inspection jig, the image acquiring unit 520 acquires a reflection image irradiated by the illumination from the reflector located under the multi-stage cable of the harness (S620). In this case, the reflector may be formed in a V-shape in cross section as described above.

The failure determination unit 530 analyzes the arrangement of the harness multi-stage cable using the reflection image to determine whether the harness is defective (S630). For example, the failure determination unit 530 may perform binary processing on the reflection image or color processing to obtain the type and arrangement information of the multi-stage cable. Using the color information of the harness multi-stage cable, it is possible to judge whether or not the harness is erroneously inserted. In this case, the reflection image is expressed on the plane, and the thickness of the cable can be changed according to the height of the cable, and it is possible to judge whether the harness is erroneously inserted or not inserted according to the interval between the cables.

Meanwhile, the harness vision inspection apparatus 500 according to another embodiment of the present invention may further include a drive control unit 540. The drive control unit 540 may control the rotation angle of the reflection unit to obtain a reflection image. The driving control unit 540 controls the rotation angle when the arrangement of the harness multi-stage cables is overlapped to prevent the arrangement of the cables from overlapping on the reflection image. The drive control unit 540 can control the operation of the connector insertion unit or the reflection unit to implement the initial setting of the optimum reflected image.

7 is an exemplary view for explaining a reflection image according to the vision inspection method according to FIG.

Referring to FIG. 7, a reflection image 700 is generated by a reflection unit 710 located below the harness 10. The reflection image 700 generates an image of the connector 11 and the cable 12 of the harness 10. The reflection image 700 represents the connector 11 of the three-dimensional harness 10 and the cable 12 in a plan view. In this case, the position of the cable 12 is formed in each reflecting portion 710. For example, when a harness 10 cable 12 is formed in a 2 × 2 array, two pieces of information on the 1 × 2 cable 12 on the left side are generated by the reflection image 700 on one side of the reflector 710 And the two pieces of information of the 1 × 2 cable 12 on the right side are used to generate the reflection image 700 on the reflector 710 on the other side. This is because the reflector 710 is formed in a 'V' shape or a 'V' shape so that wiring information of the cables 12 arranged in multiple layers can be obtained.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, Therefore, the present invention should be construed as a description of the claims which are intended to cover obvious variations that can be derived from the described embodiments.

10: Harness
11: Connector
12: Cable
100: Harness Vision Inspection System
110: Jig for harness vision inspection
111: connector insertion portion
111-1: Connection terminal
112:
113:
120:
130: vision inspection device
131: Reflective mirror
131-1: Bracket
131-11: Through hole
131-2: lens
131-3: reflector
132: camera
133:
134: Display
140: darkroom part
500: vision inspection device
510:
520:
530:
540:
700: reflection image
710:

Claims

A connector insertion portion into which a connector of the harness is inserted;
A reflector which is positioned at one side of the connector insertion portion and is formed in a V-shape in cross section by external illumination to reflect a multistage cable connected to the connector of the harness at a predetermined reflectivity, the hinge axis being formed at the center, And
And a driving unit rotatably coupled to a lower portion of the reflector to rotate the reflector so as to adjust the angle of the reflector while moving up and down corresponding to the type and shape of the harness,
A reflection mirror for reflecting the reflection image of the reflection part at a predetermined refractive index and a reflector inclined at an upper portion of the reflection part while being rotated from one side of the reflection part, And transmits the reflection image to the vision inspection apparatus.

delete

A sensing unit for sensing whether a harness connector is inserted into a harness vision inspection jig;
A hinge shaft is formed at the center of a V-shape in cross section and is illuminated to a reflecting part that rotates, so that a reflection image An image acquiring unit for acquiring an image;
A failure determination unit for analyzing the arrangement of the multi-stage cable using the reflection image to determine whether the harness is defective or not; And
And a drive control unit for controlling the rotation angle of the reflection unit so that the multi-stage cable of the harness is not overlapped with the reflection image corresponding to the type and shape of the harness,
The image acquiring unit may acquire,
A reflection mirror for reflecting the reflection image of the reflection part at a predetermined refractive index and a reflector inclined at an upper portion of the reflection part while being rotated from one side of the reflection part, And the jig for harness vision inspection is used to acquire the reflection image.

In a vision inspection method of a vision inspection apparatus,
Detecting whether a harness connector is inserted into a harness vision inspection jig;
A hinge shaft is formed at the center of a V-shape in cross section and is illuminated to a reflecting part that rotates, so that a reflection image ; And
And analyzing the arrangement of the multi-stage cable using the reflection image to determine whether the harness is defective or not,
Wherein the step of acquiring the reflected image comprises:
A reflection mirror for reflecting the reflection image of the reflection part at a predetermined refractive index and a reflector inclined at an upper portion of the reflection part while being rotated from one side of the reflection part, And a jig for harness vision inspection is used to acquire the reflection image.

A multi-stage cable, which is located at one side of the connector insertion portion, and which has a V-shaped cross section and is formed at the center thereof with a hinge axis formed therein and rotates and is connected to the connector of the harness, A harness vision inspection jig including a reflection part for reflecting the reflection light with a reflectance;
An illumination unit for irradiating the multi-stage cable located at an upper portion of the reflection unit with illumination at a predetermined angle;
Wherein when the insertion of the harness connector is detected in the connector inserting portion, a reflection image of the multi-stage cable reflected through the reflection portion is obtained, and the multi-stage cable of the harness is overlapped in the reflection image corresponding to the type and shape of the harness A bracket fixed to an upper portion of the reflection portion so as to be rotatable; a lens for refracting a reflection image of the reflection portion at a predetermined refractive index; A harness vision inspection device for controlling the harness vision inspection device to determine whether the reflection image is defective by acquiring the reflection image; And
Wherein the vision inspection jig, the illumination unit, and the vision inspection device are housed in a dark room for blocking light from the outside.