KR20230139074A - Electric vehicle battery cover vision inspection device - Google Patents

Electric vehicle battery cover vision inspection device Download PDF

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KR20230139074A
KR20230139074A KR1020220037236A KR20220037236A KR20230139074A KR 20230139074 A KR20230139074 A KR 20230139074A KR 1020220037236 A KR1020220037236 A KR 1020220037236A KR 20220037236 A KR20220037236 A KR 20220037236A KR 20230139074 A KR20230139074 A KR 20230139074A
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axis
inspection
path
camera
inspection object
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이일규
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주식회사 스마탑
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84Systems specially adapted for particular applications
    • G01N21/88Investigating the presence of flaws or contamination
    • G01N21/8851Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00Image analysis
    • G06T7/0002Inspection of images, e.g. flaw detection
    • G06T7/0004Industrial image inspection
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84Systems specially adapted for particular applications
    • G01N21/88Investigating the presence of flaws or contamination
    • G01N21/8851Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
    • G01N2021/8854Grading and classifying of flaws
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84Systems specially adapted for particular applications
    • G01N21/88Investigating the presence of flaws or contamination
    • G01N21/8851Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
    • G01N2021/8854Grading and classifying of flaws
    • G01N2021/888Marking defects
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84Systems specially adapted for particular applications
    • G01N21/88Investigating the presence of flaws or contamination
    • G01N21/8851Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
    • G01N2021/8887Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges based on image processing techniques
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2201/00Features of devices classified in G01N21/00
    • G01N2201/10Scanning
    • G01N2201/104Mechano-optical scan, i.e. object and beam moving
    • G01N2201/1042X, Y scan, i.e. object moving in X, beam in Y

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  • Computer Vision & Pattern Recognition (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Biochemistry (AREA)
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  • Chemical & Material Sciences (AREA)
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  • Quality & Reliability (AREA)
  • Theoretical Computer Science (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)

Abstract

The present invention relates to an electric vehicle battery cover vision inspection device. The electric vehicle battery cover vision inspection device includes a table (10), x- and y-axis transfer units (11, 12), and first to sixth cameras (C1 to C6) as main components, thereby capable of extracting image information from the side, top, and bottom of a welding area while an object to be inspected moves along the x- and y-axis inspection path, and quickly and accurately detecting defects caused by air bubbles by calculating the image information.

Description

전기차 배터리 커버 비젼 검사장치{Electric vehicle battery cover vision inspection device}Electric vehicle battery cover vision inspection device

본 발명은 전기차 배터리 커버 비젼 검사장치에 관련되며, 보다 상세하게는 피검사물이 x, y축 검사경로를 따라 이동하는 중에 용접영역의 측면, 상면, 저면에 이미지 정보를 추출하고, 이를 연산하여 기포로 인한 불량을 신속 정확하게 검출할 수 있는 전기차 배터리 커버 비젼 검사장치에 관한 것이다.The present invention relates to an electric vehicle battery cover vision inspection device, and more specifically, image information is extracted from the side, top, and bottom of the welding area while the inspected object is moving along the x- and y-axis inspection path, and this is calculated to determine the bubble This relates to an electric vehicle battery cover vision inspection device that can quickly and accurately detect defects caused by.

화석연료를 사용하여 운행되는 이동수단에서 대기오염의 주된 원인인 배기가스가 갈수록 대량 배출되고 있고, 화석연료 또한 점차 고갈되어가고 있어 친환경 에너지이며 고갈 위험성이 없는 전기에너지를 활용한 이동수단이 점차 보급화되는 추세에 있다.Exhaust gases, which are the main cause of air pollution, are increasingly being emitted in large quantities from means of transportation using fossil fuels, and fossil fuels are also gradually being depleted, so transportation methods using electric energy, which is eco-friendly and has no risk of depletion, are gradually becoming popular. There is a trend toward becoming

전기차의 경우 전기 에너지를 저장하기 위한 배터리 모듈이 구비되는데, 배터리 모듈은 배터리케이스 내부에 다수의 배터리 셀 유닛이 수용되는 형태를 갖게 된다.In the case of electric vehicles, a battery module is provided to store electrical energy, and the battery module has a form in which multiple battery cell units are accommodated inside the battery case.

이처럼 배터리 셀 유닛은 배터리케이스에 의해 보호되고, 이때 배터리케이스는 각 파트별로 다이캐스팅되어 용접방식으로 접합하고 있지만, 용접면에 기포가 존재하는 경우 용접 불량으로 이어지고, 이후 용접 불량은 배터리폭발의 원인이 된다.In this way, the battery cell unit is protected by the battery case, and the battery case is die-cast for each part and joined by welding. However, if air bubbles exist on the welding surface, it leads to welding defects, and subsequent welding defects become the cause of battery explosion. do.

이에 종래에 개시된 공개특허 10-2013-0055932호에서, 엔진 가공 라인에서 검사 대상물인 엔진 가공 완성품의 품질을 검사하기 위한 엔진 가공품의 무인 검사 시스템으로서, 상기 검사 대상물이 이송하는 이송 경로 외측에 구성되는 적어도 둘 이상의 다관절 로봇; 상기 각 로봇의 아암 선단에 장착되며, 상기 로봇의 움직임을 따라서 상기 검사 대상물을 전 방향에서 촬영하는 촬영유닛; 및 상기 촬영유닛에 의해 촬영된 영상 이미지를 버퍼 함수 내에 임시 저장하고, 상기 영상 이미지를 비젼 판독하여 상기 검사 대상물의 양불을 판정하는 영상 분석장치를 포함하는 기술이 선 제시된 바 있다.Accordingly, in the previously disclosed patent publication No. 10-2013-0055932, an unmanned inspection system for engine processed products for inspecting the quality of engine processed finished products, which are inspection objects in an engine processing line, is configured outside the transfer path through which the inspection objects are transported. At least two articulated robots; an imaging unit mounted at the tip of the arm of each robot and photographing the inspection object in all directions following the movement of the robot; And a technology including an image analysis device that temporarily stores the video image captured by the photographing unit in a buffer function and reads the video image with vision to determine whether the inspection object is good or bad has been previously proposed.

그러나, 상기 종래기술은 가공품을 고속 촬영하고 무인으로 고속 비젼 판독하려는 것이나, 평면, 배면, 측면을 복합적으로 검사하기 위해서는 촬영유닛의 각도를 변경하면서 수회에 걸쳐 가공품 주변을 이동해야 하므로 검사시간이 지연됨과 더불어 검사정밀도가 저하되는 폐단이 따랐다.However, the above-described prior art attempts to photograph the processed product at high speed and read the high-speed vision unmanned, but in order to perform a complex inspection of the plane, back, and side surfaces, the inspection time is delayed because the angle of the photographing unit must be changed and the camera moves around the processed product several times. In addition, there was the disadvantage of lowering the inspection accuracy.

이에 따라 본 발명은 상기한 문제점을 해결하기 위해 착안 된 것으로서, 피검사물이 x, y축 검사경로를 따라 이동하는 중에 용접영역의 측면, 상면, 저면에 이미지 정보를 추출하고, 이를 연산하여 기포로 인한 불량을 신속 정확하게 검출할 수 있는 전기차 배터리 커버 비젼 검사장치를 제공하는 것에 그 목적이 있다.Accordingly, the present invention was conceived to solve the above-mentioned problems. Image information is extracted from the side, top, and bottom of the welding area while the inspection object is moving along the x- and y-axis inspection path, and this is calculated and converted into bubbles. The purpose is to provide an electric vehicle battery cover vision inspection device that can quickly and accurately detect defects caused by the battery.

이러한 목적을 달성하기 위해 본 발명의 특징은, 피검사물(A)이 x축 검사경로(x)를 타고 이송되는 중에 x축 검사경로(x)와 평행하는 측면, 상면, 저면 중 어느 일면 이상을 카메라로 촬영하고, 상기 피검사물(A)이 x축 검사경로(x) 종점에서 y축 검사경로(y)로 방향 전환되어 이송되는 중에 y축 검사경로(y)와 평행하는 측면, 상면, 저면 중 어느 일면 이상을 카메라로 촬영하도록 구비되는 것을 특징으로 한다.In order to achieve this purpose, the feature of the present invention is that while the inspection object (A) is being transported along the x-axis inspection path (x), at least one of the side, top, and bottom surfaces parallel to the Photographed with a camera, the side, top, and bottom surfaces parallel to the y-axis inspection path (y) are taken while the inspection object (A) is being transferred from the end point of the x-axis inspection path (x) to the y-axis inspection path (y). It is characterized by being equipped to photograph at least one side of the camera with a camera.

이때, 상기 피검사물(A)이 안착되고, x, y축 이송부(11)(12)에 의해 x, y축 검사경로(x)(y)를 따라 이송되도록 구비되는 테이블(10); 상기 x축 검사경로(x) 상에 배치되고, x축 경로(x)와 평행하는 피검사물(A)의 x축 양측면을 촬영하도록 구비되는 제 1카메라(C1); 상기 x축 검사경로(x) 상에 배치되고, x축 검사경로(x)와 평행하는 피검사물(A)의 x축 상면을 촬영하도록 구비되는 제 2카메라(C2); 상기 y축 검사경로(y) 상에 배치되고, y축 검사경로(y)와 평행하는 피검사물(A)의 y축 저면을 촬영하도록 구비되는 제 3카메라(C3); 상기 y축 검사경로(y) 상에 배치되고, y축 검사경로(y)와 평행하는 피검사물(A)의 y축 상면을 촬영하도록 구비되는 제4카메라(C4); 상기 y축 검사경로(y) 상에 배치되고, y축 검사경로(y)와 평행하는 피검사물(A)의 y축 측면을 촬영하도록 구비되는 제 5카메라(C5); 상기 y축 검사경로(y) 상에 배치되고, y축 검사경로(y)와 평행하는 피검사물(A)의 y축 측면 영역을 제 5카메라(C5) 대비 확장된 영역에서 촬영하도록 구비되는 제 6카메라(C6); 및 상기 제 1 내지 6카메라(C1~C6)에서 촬영된 이미지데이터를 연산하여 불량품을 검출하도록 구비되는 제어부;를 포함하는 것을 특징으로 한다.At this time, a table (10) on which the inspection object (A) is seated and provided to be transported along the x- and y-axis inspection path (x) (y) by the x- and y-axis transfer units (11) (12); A first camera (C1) disposed on the x-axis inspection path (x) and provided to photograph both sides of the x-axis of the inspection object (A) parallel to the x-axis path (x); A second camera (C2) disposed on the x-axis inspection path (x) and provided to photograph the x-axis upper surface of the inspection object (A) parallel to the x-axis inspection path (x); A third camera (C3) disposed on the y-axis inspection path (y) and provided to photograph the y-axis bottom surface of the inspection object (A) parallel to the y-axis inspection path (y); A fourth camera (C4) disposed on the y-axis inspection path (y) and provided to photograph the y-axis upper surface of the inspection object (A) parallel to the y-axis inspection path (y); A fifth camera (C5) disposed on the y-axis inspection path (y) and provided to photograph the y-axis side of the inspection object (A) parallel to the y-axis inspection path (y); A device disposed on the y-axis inspection path (y) and equipped to photograph the y-axis side area of the inspection object (A) parallel to the y-axis inspection path (y) in an expanded area compared to the fifth camera (C5). 6 cameras (C6); and a control unit provided to detect defective products by calculating image data captured by the first to sixth cameras (C1 to C6).

또한, 상기 제어부에서 불량품으로 검출된 피검사물(A)은 제 6카메라(C6)를 통과한 후 마킹부(20)에 의해 불량표식이 마킹되도록 구비되는 것을 특징으로 한다.In addition, the inspection object (A) detected as a defective product by the control unit is characterized in that it is provided with a defect mark by the marking unit 20 after passing through the sixth camera (C6).

또한, 상기 마킹부(20)는, 테이블(10) 상에 설치되어 피검사물(A) 저면에 불량표식을 마킹되거나, 상기 테이블(10)과 대응하는 상부에 설치되고, 피검사물(A)의 상하면을 180°반전시킨 상태로 불량표식 마킹하도록 구비되는 것을 특징으로 한다.In addition, the marking unit 20 is installed on the table 10 and marks a defective mark on the bottom of the inspection object A, or is installed on the upper part corresponding to the table 10 and marks the inspection object A. It is characterized in that it is provided to mark a defective mark with the upper and lower surfaces reversed by 180°.

이상의 구성 및 작용에 의하면, 본 발명은 피검사물이 x, y축 검사경로를 따라 이동하는 중에 용접영역의 측면, 상면, 저면에 이미지 정보를 추출하고, 이를 연산하여 기포로 인한 불량을 신속 정확하게 검출할 수 있는 효과가 있다.According to the above configuration and operation, the present invention extracts image information on the side, top, and bottom of the welding area while the inspection object moves along the x- and y-axis inspection path, and calculates this to quickly and accurately detect defects due to air bubbles. There is an effect that can be done.

도 1은 본 발명의 일실시예에 따른 전기차 배터리 커버 비젼 검사장치를 전체적으로 나타내는 구성도.
도 2는 본 발명의 일실시예에 따른 전기차 배터리 커버 비젼 검사장치의 마킹부를 나타내는 구성도.
도 3은 본 발명의 일실시예에 따른 전기차 배터리 커버 비젼 검사장치의 x축 검사경로를 타고 피검사물이 이송되는 상태를 나타내는 구성도.
도 4는 본 발명의 일실시예에 따른 전기차 배터리 커버 비젼 검사장치의 y축 검사경로를 타고 피검사물이 이송되는 상태를 나타내는 구성도.
1 is an overall configuration diagram of an electric vehicle battery cover vision inspection device according to an embodiment of the present invention.
Figure 2 is a configuration diagram showing a marking portion of an electric vehicle battery cover vision inspection device according to an embodiment of the present invention.
Figure 3 is a configuration diagram showing a state in which an inspection object is transported along the x-axis inspection path of the electric vehicle battery cover vision inspection device according to an embodiment of the present invention.
Figure 4 is a configuration diagram showing a state in which an inspection object is transported along the y-axis inspection path of the electric vehicle battery cover vision inspection device according to an embodiment of the present invention.

이하, 첨부된 도면을 참조하여 본 발명의 바람직한 실시예를 상세히 설명한다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings.

도 1은 본 발명의 일실시예에 따른 전기차 배터리 커버 비젼 검사장치를 전체적으로 나타내는 구성도이고, 도 2는 본 발명의 일실시예에 따른 전기차 배터리 커버 비젼 검사장치의 마킹부를 나타내는 구성도이며, 도 3은 본 발명의 일실시예에 따른 전기차 배터리 커버 비젼 검사장치의 x축 검사경로를 타고 피검사물이 이송되는 상태를 나타내는 구성도이고, 도 4는 본 발명의 일실시예에 따른 전기차 배터리 커버 비젼 검사장치의 y축 검사경로를 타고 피검사물이 이송되는 상태를 나타내는 구성도이다.1 is a schematic diagram showing the overall configuration of an electric vehicle battery cover vision inspection device according to an embodiment of the present invention, and FIG. 2 is a configuration diagram showing a marking portion of an electric vehicle battery cover vision inspection device according to an embodiment of the present invention. 3 is a configuration diagram showing the state in which the inspection object is transported along the x-axis inspection path of the electric vehicle battery cover vision inspection device according to an embodiment of the present invention, and Figure 4 is a diagram showing the electric vehicle battery cover vision according to an embodiment of the present invention. This is a configuration diagram showing the state in which the inspection object is transported along the y-axis inspection path of the inspection device.

본 발명은 전기차 배터리 커버 비젼 검사장치에 관련되며, 이때 전기차 배터리 커버 비젼 검사장치는 피검사물이 x, y축 검사경로를 따라 이동하는 중에 용접영역의 측면, 상면, 저면에 이미지 정보를 추출하고, 이를 연산하여 기포로 인한 불량을 신속 정확하게 검출할 수 있도록 테이블(10), x, y축 이송부(11)(12), 제 1 내지 6카메라(C1~C6)를 포함하여 주요구성으로 한다.The present invention relates to an electric vehicle battery cover vision inspection device, wherein the electric vehicle battery cover vision inspection device extracts image information on the side, top, and bottom of the welding area while the inspection object moves along the x- and y-axis inspection path, The main components include a table (10), x- and y-axis transfer units (11) and (12), and first to sixth cameras (C1 to C6) so that defects caused by air bubbles can be quickly and accurately detected by calculating this.

본발명에 따른 전기차 배터리 커버 비젼 검사장치는 피검사물(A)이 x축 검사경로(x)를 타고 이송되는 중에 x축 검사경로(x)와 평행하는 측면, 상면, 저면 중 어느 일면 이상을 카메라로 촬영한다.The electric vehicle battery cover vision inspection device according to the present invention uses a camera to capture at least one of the side, top, and bottom surfaces parallel to the x-axis inspection path (x) while the inspection object (A) is being transported along the x-axis inspection path (x). Take pictures with

이어서, 상기 피검사물(A)이 x축 검사경로(x) 종점에서 y축 검사경로(y)로 방향 전환되어 이송되는 중에 y축 검사경로(y)와 평행하는 측면, 상면, 저면 중 어느 일면 이상을 카메라로 촬영하도록 구비된다.Subsequently, while the inspection object (A) is being transferred from the end point of the x-axis inspection path (x) to the y-axis inspection path (y), any one of the side, top, and bottom surfaces is parallel to the y-axis inspection path (y). It is equipped to photograph the above with a camera.

여기서, 상기 피검사물(A)이 안착되고, x, y축 이송부(11)(12)에 의해 x, y축 검사경로(x)(y)를 따라 이송되도록 테이블(10)이 구비된다.Here, the table 10 is provided so that the inspection object (A) is seated and transported along the x- and y-axis inspection path (x)(y) by the x- and y-axis transfer units 11 and 12.

상기 테이블(10)은 피검사물(A)이 정위치에 로딩되도록 안내하는 지그로 형성된다.The table 10 is formed as a jig that guides the inspection object (A) to be loaded in the correct position.

그리고, 상기 테이블(10)은 x축 이송부(11) 일측 단부에서 피검사물(A)이 로딩되면, x축 검사경로(x)를 따라 종점까지 이동한 후, y축 이송부(12)를 타고 y축 검사경로(y)를 따라 이동되고, x, y축 검사경로(x)(y) 상에 제 1 내지 6카메라(C1~C6)가 배치되어 피검사물(A)의 용접영역을 촬영하도록 구비된다.And, when the inspection object (A) is loaded at one end of the x-axis transfer unit 11, the table 10 moves to the end point along the x-axis inspection path (x) and then travels to y along the y-axis transfer unit 12. It moves along the axial inspection path (y), and the first to sixth cameras (C1 to C6) are arranged on the x and y axis inspection path (x) (y) to photograph the welding area of the inspection object (A). do.

이때, 상기 제 1카메라(C1)는 상기 x축 검사경로(x) 상에 배치되고, x축 경로(x)와 평행하는 피검사물(A)의 x축 양측면을 촬영하도록 구비된다.At this time, the first camera (C1) is disposed on the x-axis inspection path (x) and is equipped to photograph both sides of the x-axis of the inspection object (A) parallel to the x-axis path (x).

상기 제 1카메라(C1)는 x축 검사경로(x) 양측에 배치되고, 피검사물(A)이 x축 이송부(11)를 타고 이송되는 중에 피검사물(A)의 용접영역 측면을 소정의 영역으로 분할 촬영하고, 이를 조합하여 고해상도의 영상정보를 추출하도록 구비된다.The first camera (C1) is disposed on both sides of the x-axis inspection path (x), and while the inspection object (A) is being transported on the It is equipped to split images and combine them to extract high-resolution image information.

또한, 상기 제 2카메라(C2)는 상기 x축 검사경로(x) 상에 배치되고, x축 검사경로(x)와 평행하는 피검사물(A)의 x축 상면을 촬영하도록 구비된다.In addition, the second camera (C2) is disposed on the x-axis inspection path (x) and is provided to photograph the x-axis upper surface of the inspection object (A) parallel to the x-axis inspection path (x).

상기 제 2카메라(C2)는 x축 검사경로(x) 상부에 설치되고, 피검사물(A)이 x축 이송부(11)를 타고 이송되는 중에 피검사물(A)의 용접영역 상면을 소정의 영역으로 분할 촬영하고, 이를 조합하여 고해상도의 영상정보를 추출하도록 구비된다.The second camera (C2) is installed at the upper part of the x-axis inspection path (x), and while the inspection object (A) is being transported on the It is equipped to split images and combine them to extract high-resolution image information.

이때, 상기 제 2카메라(C2)는 제 1카메라(C1)와 인접하게 배치되어, 제 1카메라(C1)에 의해 피검사물(A)의 x축 방향 양측면이 촬영된 직후, 제 2카메라(C2)에 의해 피검사물(A)의 x축 방향 상면이 촬영되도록 구비된다.At this time, the second camera (C2) is disposed adjacent to the first camera (C1), and immediately after both sides of the inspection object (A) in the x-axis direction are photographed by the first camera (C1), the second camera (C2) ) is provided so that the upper surface of the inspection object (A) in the x-axis direction is photographed.

또한, 상기 제 3카메라(C3)는 상기 y축 검사경로(y) 상에 배치되고, y축 검사경로(y)와 평행하는 피검사물(A)의 y축 저면을 촬영하도록 구비된다.In addition, the third camera (C3) is disposed on the y-axis inspection path (y) and is provided to photograph the y-axis bottom surface of the inspection object (A) parallel to the y-axis inspection path (y).

상기 제 3카메라(C3)는 y축 검사경로(y) 하부에 설치되고, 피검사물(A)이 y축 이송부(12)를 타고 이송되는 중에 피검사물(A)의 용접영역 저면을 소정의 영역으로 분할 촬영하고, 이를 조합하여 고해상도의 영상정보를 추출하도록 구비된다.The third camera (C3) is installed at the bottom of the y-axis inspection path (y), and while the inspection object (A) is being transported on the y-axis transfer unit 12, the bottom of the welding area of the inspection object (A) is divided into a predetermined area. It is equipped to split images and combine them to extract high-resolution image information.

또한, 상기 제4카메라(C4)는 상기 y축 검사경로(y) 상에 배치되고, y축 검사경로(y)와 평행하는 피검사물(A)의 y축 상면을 촬영하도록 구비된다.In addition, the fourth camera C4 is disposed on the y-axis inspection path (y) and is provided to photograph the y-axis upper surface of the inspection object (A) parallel to the y-axis inspection path (y).

상기 제 4카메라(C4)는 y축 검사경로(y) 상부에 설치되고, 피검사물(A)이 y축 이송부(12)를 타고 이송되는 중에 피검사물(A)의 용접영역 상면을 소정의 영역으로 분할 촬영하고, 이를 조합하여 고해상도의 영상정보를 추출하도록 구비된다.The fourth camera (C4) is installed at the upper part of the y-axis inspection path (y), and while the inspection object (A) is being transported on the y-axis transfer unit 12, the upper surface of the welding area of the inspection object (A) is divided into a predetermined area. It is equipped to split images and combine them to extract high-resolution image information.

또한, 상기 제 5카메라(C5)는 상기 y축 검사경로(y) 상에 배치되고, y축 검사경로(y)와 평행하는 피검사물(A)의 y축 측면을 촬영하도록 구비된다.In addition, the fifth camera C5 is disposed on the y-axis inspection path (y) and is provided to photograph the y-axis side of the inspection object (A) parallel to the y-axis inspection path (y).

상기 제 5카메라(C5)는 y축 검사경로(y) 측면에 설치되고, 피검사물(A)이 y축 이송부(12)를 타고 이송되는 중에 피검사물(A)의 용접영역 측면을 소정의 영역으로 분할 촬영하고, 이를 조합하여 고해상도의 영상정보를 추출하도록 구비된다.The fifth camera (C5) is installed on the side of the y-axis inspection path (y), and while the inspection object (A) is being transported on the y-axis transfer unit 12, the side of the welding area of the inspection object (A) is positioned in a predetermined area. It is equipped to split images and combine them to extract high-resolution image information.

또한, 상기 제 6카메라(C6)는 상기 y축 검사경로(y) 상에 배치되고, y축 검사경로(y)와 평행하는 피검사물(A)의 y축 측면 영역을 제 5카메라(C5) 대비 확장된 영역에서 촬영하도록 구비된다.In addition, the sixth camera (C6) is disposed on the y-axis inspection path (y), and the fifth camera (C5) captures the y-axis side area of the inspection object (A) parallel to the y-axis inspection path (y). It is equipped to take pictures in an expanded area.

상기 제 6카메라(C6)는 y축 검사경로(y) 측면에 설치되고, 피검사물(A)이 y축 이송부(12)를 타고 이송되는 중에 피검사물(A)의 용접영역을 포함하는 측면 전체영역을 촬영하도록 구비된다.The sixth camera (C6) is installed on the side of the y-axis inspection path (y), and while the inspection object (A) is being transported on the y-axis transfer unit 12, the entire side including the welding area of the inspection object (A) It is equipped to photograph an area.

이처럼, 상기 피검사물(A)이 y축 검사경로(y)를 타고 이송되는 중에 제 3 내지 6카메라(C3~C6)를 연속적으로 거치면서 피검사물(A)의 y축방향에 대응하는 저면, 상면, 측면이 연속적으로 촬영됨에 따라 이미지 추출 시간이 크게 단축된다.In this way, while the inspection object (A) is being transported along the y-axis inspection path (y), the bottom surface corresponding to the y-axis direction of the inspection object (A) while continuously passing through the third to sixth cameras (C3 to C6), As the top and sides are captured continuously, the image extraction time is greatly shortened.

또한, 본 발명에 따른 제어부는 상기 제 1 내지 6카메라(C1~C6)에서 촬영된 이미지데이터를 연산하여 불량품을 검출하도록 구비된다.Additionally, the control unit according to the present invention is provided to detect defective products by calculating image data captured by the first to sixth cameras (C1 to C6).

상기 제어부는 AI모듈을 이용하여 이미지데이터를 연산하여 노이즈를 필터링한 후, 설정된 사이즈 이상의 불량픽셀이 검출되는 경우 불량으로 판단하게 된다.The control unit calculates image data using an AI module, filters noise, and determines that a defective pixel of a set size or larger is detected as defective.

도 2에서, 상기 제어부에서 불량품으로 검출된 피검사물(A)은 제 6카메라(C6)를 통과한 후 마킹부(20)에 의해 불량표식이 마킹되도록 구비된다. 일예로서 마킹부(20)는 인쇄방식, 레이저각인방식 중 어느 하나를 선택적으로 적용할 수 있다.In FIG. 2, the inspection object (A) detected as a defective product by the control unit passes through the sixth camera (C6) and is then marked with a defect mark by the marking unit (20). As an example, the marking part 20 can selectively use either a printing method or a laser engraving method.

또한, 상기 마킹부(20)는, 도 2 (a)처럼 테이블(10) 상에 설치되어 피검사물(A) 저면에 불량표식을 마킹되거나, 도 2 (b)와 같이 상기 테이블(10)과 대응하는 상부에 설치되고, 피검사물(A)의 상하면을 180°반전시킨 상태로 불량표식 마킹하도록 구비된다.In addition, the marking unit 20 is installed on the table 10 as shown in FIG. 2 (a) and marks a defective mark on the bottom of the object to be inspected (A), or is attached to the table 10 as shown in FIG. 2 (b). It is installed at the corresponding upper part and is equipped to mark a defect mark with the upper and lower surfaces of the inspection object (A) reversed by 180°.

10: 테이블 20: 마킹부10: Table 20: Marking section

Claims (4)

피검사물(A)이 x축 검사경로(x)를 타고 이송되는 중에 x축 검사경로(x)와 평행하는 측면, 상면, 저면 중 어느 일면 이상을 카메라로 촬영하고,
상기 피검사물(A)이 x축 검사경로(x) 종점에서 y축 검사경로(y)로 방향 전환되어 이송되는 중에 y축 검사경로(y)와 평행하는 측면, 상면, 저면 중 어느 일면 이상을 카메라로 촬영하도록 구비되는 것을 특징으로 하는 전기차 배터리 커버 비젼 검사장치.
While the inspection object (A) is being transported along the x-axis inspection path (x), at least one of the side, top, and bottom surfaces parallel to the
While the inspection object (A) is being transferred from the end point of the An electric vehicle battery cover vision inspection device equipped to take pictures with a camera.
제 1항에 있어서,
상기 피검사물(A)이 안착되고, x, y축 이송부(11)(12)에 의해 x, y축 검사경로(x)(y)를 따라 이송되도록 구비되는 테이블(10);
상기 x축 검사경로(x) 상에 배치되고, x축 경로(x)와 평행하는 피검사물(A)의 x축 양측면을 촬영하도록 구비되는 제 1카메라(C1);
상기 x축 검사경로(x) 상에 배치되고, x축 검사경로(x)와 평행하는 피검사물(A)의 x축 상면을 촬영하도록 구비되는 제 2카메라(C2);
상기 y축 검사경로(y) 상에 배치되고, y축 검사경로(y)와 평행하는 피검사물(A)의 y축 저면을 촬영하도록 구비되는 제 3카메라(C3);
상기 y축 검사경로(y) 상에 배치되고, y축 검사경로(y)와 평행하는 피검사물(A)의 y축 상면을 촬영하도록 구비되는 제4카메라(C4);
상기 y축 검사경로(y) 상에 배치되고, y축 검사경로(y)와 평행하는 피검사물(A)의 y축 측면을 촬영하도록 구비되는 제 5카메라(C5);
상기 y축 검사경로(y) 상에 배치되고, y축 검사경로(y)와 평행하는 피검사물(A)의 y축 측면 영역을 제 5카메라(C5) 대비 확장된 영역에서 촬영하도록 구비되는 제 6카메라(C6); 및
상기 제 1 내지 6카메라(C1~C6)에서 촬영된 이미지데이터를 연산하여 불량품을 검출하도록 구비되는 제어부;를 포함하는 것을 특징으로 하는 전기차 배터리 커버 비젼 검사장치.
According to clause 1,
A table (10) on which the inspection object (A) is seated and provided to be transported along the x- and y-axis inspection path (x) (y) by the x- and y-axis transfer units (11) (12);
A first camera (C1) disposed on the x-axis inspection path (x) and provided to photograph both sides of the x-axis of the inspection object (A) parallel to the x-axis path (x);
A second camera (C2) disposed on the x-axis inspection path (x) and provided to photograph the x-axis upper surface of the inspection object (A) parallel to the x-axis inspection path (x);
A third camera (C3) disposed on the y-axis inspection path (y) and provided to photograph the y-axis bottom surface of the inspection object (A) parallel to the y-axis inspection path (y);
A fourth camera (C4) disposed on the y-axis inspection path (y) and provided to photograph the y-axis upper surface of the inspection object (A) parallel to the y-axis inspection path (y);
A fifth camera (C5) disposed on the y-axis inspection path (y) and provided to photograph the y-axis side of the inspection object (A) parallel to the y-axis inspection path (y);
A device disposed on the y-axis inspection path (y) and equipped to photograph the y-axis side area of the inspection object (A) parallel to the y-axis inspection path (y) in an expanded area compared to the fifth camera (C5). 6 cameras (C6); and
A control unit provided to detect defective products by calculating image data captured by the first to sixth cameras (C1 to C6). An electric vehicle battery cover vision inspection device comprising a.
제 2항에 있어서,
상기 제어부에서 불량품으로 검출된 피검사물(A)은 제 6카메라(C6)를 통과한 후 마킹부(20)에 의해 불량표식이 마킹되도록 구비되는 것을 특징으로 하는 전기차 배터리 커버 비젼 검사장치.
According to clause 2,
An electric vehicle battery cover vision inspection device, characterized in that the inspected object (A) detected as a defective product by the control unit passes through the sixth camera (C6) and is then marked with a defect mark by the marking unit (20).
제 3항에 있어서,
상기 마킹부(20)는, 테이블(10) 상에 설치되어 피검사물(A) 저면에 불량표식을 마킹되거나, 상기 테이블(10)과 대응하는 상부에 설치되고, 피검사물(A)의 상하면을 180°반전시킨 상태로 불량표식 마킹하도록 구비되는 것을 특징으로 하는 전기차 배터리 커버 비젼 검사장치.
According to clause 3,
The marking unit 20 is installed on the table 10 and marks a defect mark on the bottom of the inspection object (A), or is installed on the upper part corresponding to the table 10 and marks the upper and lower surfaces of the inspection object (A). An electric vehicle battery cover vision inspection device that is equipped to mark defective marks in a 180° inverted state.
KR1020220037236A 2022-03-25 2022-03-25 Electric vehicle battery cover vision inspection device KR20230139074A (en)

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