CN217358412U - Position detection device and size detection equipment for lock hole of automobile tail door - Google Patents
Position detection device and size detection equipment for lock hole of automobile tail door Download PDFInfo
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- CN217358412U CN217358412U CN202220885059.3U CN202220885059U CN217358412U CN 217358412 U CN217358412 U CN 217358412U CN 202220885059 U CN202220885059 U CN 202220885059U CN 217358412 U CN217358412 U CN 217358412U
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- 238000001514 detection method Methods 0.000 title claims abstract description 108
- 238000012545 processing Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000005034 decoration Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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- 230000000007 visual effect Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
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- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
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Abstract
The utility model relates to a car tail-gate lockhole position detection especially relates to a car tail-gate lockhole position detection device and size detection equipment. The utility model provides a car tail-gate lockhole position detecting device, includes first detection portion and second detection portion, and first detection portion and second detection portion are equipped with industrial camera, machine vision camera lens, the coaxial light source of corner respectively, and industrial camera is coaxial with machine vision camera lens, and the coaxial light source of corner is equipped with mutually perpendicular's window and window No. two respectively, and machine vision camera lens perpendicular to window No. two, and the window orientation detection device of first detection portion and second detection portion is same one side and parallel. The utility model has the advantages that: the invention has the advantages of high accuracy, no missing detection, no loss of mechanical parts, high detection speed, small occupied installation space, obvious deployment advantages in limited space, full-automatic detection and abundant internal and external interfaces.
Description
Technical Field
The utility model relates to a car tail-gate lockhole position detecting especially relates to a car tail-gate lockhole position detecting device and size detection equipment.
Background
When the automobile assembly, the automobile tail door lockhole sheet metal component can lead to certain error to appear because of technology after fixed to rear of a vehicle door assigned position, along with the use of rigging equipment day and month accumulation, the assembly error can increase thereupon to great deviation appears, make the lockhole skew correct position, influence the operation of locking that falls of automobile tail door.
The lockhole position detection of car tail-gate, car tail-gate are equipped with 2 round holes, 1 elliptical aperture for the lock, the deviation of lockhole is allowed in 0.2mm, just can guarantee that subsequent use is normal. Before the automobile tail gate leaves a factory, a series of quality checks can be carried out, wherein the position check of the lock hole can not be carried out by using a contact type sensor for detection temporarily, and only a manual measurement mode is adopted.
At present, the detection of the through hole in the market generally uses a manual detection and mechanical probing device. The manual detection accuracy is relatively low, missing detection and error detection are possible, the manual efficiency is low, the labor intensity is high, and the data statistical analysis is difficult. The mechanical probing detection device comprises a cylinder, a sensor, a connecting piece and the like, loss easily occurs to the mechanical probing detection device, and after the loss reaches a certain degree, the detection result is influenced, so that the quality of the whole vehicle is improved.
At present, the size specification of the automobile tail door is detected, adopted size detection equipment is a contact type or infrared detection sensor, the detection point surface of the sensor has no problem, but the detection can not be carried out on the through hole.
The traditional visual detection shooting system is provided with a detected object, a lens and a camera in sequence from bottom to top, and a matched light source is additionally arranged. The traditional scheme not only needs to be detected enough big installation space of thing one side, and the direction of polishing and the equal straight-up-down of reflection direction, and the form is fixed single. For realizing the position that detects 3 lockholes simultaneously, traditional visual detection design scheme design does, adopts 3 sets of shooting systems to shoot 1 lockhole respectively, exports the testing result simultaneously.
The size detection equipment does not reserve the space for installing the shooting system, so that the industrial camera, the lens, the detection object and the light source cannot be coaxially arranged in sequence, and 3 sets of shooting systems cannot be installed simultaneously. The size detection equipment utilizes dozens of contact sensors for realizing the size detection of the automobile tail gate, and a traditional shooting system can be installed in insufficient space.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that overcome exist among the prior art not enough, provide a car tail-gate lockhole position detection device and size detection equipment.
The utility model discloses a realize through following technical scheme:
the utility model provides a car tail-gate lockhole position detection device, includes first detection portion and second detection portion, and first detection portion and second detection portion are equipped with industry camera, machine vision camera lens, the coaxial light source of corner respectively, and industry camera is coaxial with machine vision camera lens, and the coaxial light source of corner is equipped with mutually perpendicular's window and window No. two respectively, and machine vision camera lens perpendicular to window No. two, and the window orientation detection device of first detection portion and second detection portion is with one side and parallel.
According to the above technical solution, preferably, the industrial camera is mounted on an angle-tilting table.
According to the above technical solution, preferably, the angle-inclined tables of the first detection portion and the second detection portion are both fixedly connected with the bracket.
According to the technical scheme, preferably, a light splitting lens and a light source are arranged in the corner coaxial light source, light rays emitted by the light source form an angle of 45 degrees with the light splitting lens, and two parts of light rays refracted by the light splitting lens are perpendicular to the first window and the second window respectively.
The utility model provides an automobile tail-gate size detection equipment, adopt above-mentioned automobile tail-gate lock hole position detection device to install in automobile tail-gate size detection equipment, automobile tail-gate size detection equipment is equipped with the position trigger, the position trigger is used for detecting whether the automobile tail-gate arrives the detection position and starts the industry camera of first detection part and second detection part, the industry camera is carried the image to image processing module, image processing module output lockhole's position coordinate and with the offset of standard size contrast output lockhole centre of a circle.
The beneficial effects of the utility model are that: the invention has the advantages of high accuracy, no missing detection, no loss of mechanical parts, high detection speed, small occupied installation space, obvious deployment advantages in limited space, full-automatic detection and abundant internal and external interfaces.
Drawings
Fig. 1 shows a schematic diagram of an embodiment of the invention.
Fig. 2 shows a schematic structural diagram of an embodiment of the present invention.
Fig. 3 shows a schematic diagram of a keyhole structure according to an embodiment of the present invention.
In the figure: 1. the device comprises a first detection part, 2, a second detection part, 3, an industrial camera, 4, a machine vision lens, 5, a corner coaxial light source, 6, a first window, 7, a second window and 8, an angle tilting table.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and preferred embodiments.
As shown in the figure, the utility model relates to a car tail-gate lockhole position detection device, including first detection portion 1 and second detection portion 2, first detection portion is used for shooting and detects two circular lockholes, and second detection portion is used for shooting and detects an oval lockhole. The first detection part and the second detection part are respectively provided with an industrial camera 3, a machine vision lens 4 and a corner coaxial light source 5. The industrial camera and the machine vision lens are coaxial to form a camera module. The corner coaxial light source is respectively provided with a first window 6 and a second window 7 which are vertical to each other, and light rays emitted by the light source irradiate onto the 45-degree beam splitter lens. And a part of light rays are refracted and then pass through the first window. And the other part of light rays penetrate through the second window after being refracted and irradiate the machine vision lens. The machine vision lens is perpendicular to the second window. The first windows of the first detection part and the second detection part face to the same side of the detection device and are parallel to each other. In order to break through the limitation of installation space, only 2 sets of shooting systems can be installed in the existing space, and therefore 3 sets are compressed into 2 sets.
Wherein, the industrial camera is installed in angle sloping platform 8, and the angle sloping platform of first detection portion and second detection portion all fixedly connected support. Because the lockhole surface and the ground plane have a certain angle when the automobile tail door is at the standard position for detecting the size of the size detection equipment, the angle-inclined platform is arranged below the camera module, and the lockhole surface and the camera module can be matched by rotating and adjusting the angle of the camera module.
When the automobile tail gate moves to the detection position, the industrial cameras of the first detection part and the second detection part start to shoot pictures. The industrial camera of the first detection part is a black-and-white camera with 1200 ten thousand pixels and is used for shooting and detecting two circular lock holes. The industrial camera of the second detection part is a 600 ten thousand pixel black-and-white camera and is used for shooting and detecting an oval keyhole.
The lockhole detection needs to detect the positions of 3 holes at the same time, a coordinate system is established by taking a central chassis of a head of the automobile as an original point and facing the tail of the automobile, the direction to the sky is the positive direction of a z axis, the direction to the tail of the automobile is the positive direction of an x axis, and the direction to the copilot is the positive direction of a y axis. The system supports simultaneous detection of the x-axis and the y-axis.
The system is matched with size detection equipment for use together, no additional training is needed for workers to operate, and the system camera is automatically started to start working when the automobile tail door reaches a detection zero position through an IO port signal interaction technology. The pictures taken by the camera are processed by a series of AND operations and then sent to the inference module. The reasoning module gives the positions of the image coordinate systems of the 3 circle centers, and the positions are sent to the result integration processing module; and the module carries out three-dimensional coordinate system conversion, converts the position of the image coordinate system into the position of the automobile model coordinate system, compares the position of the image coordinate system with standard data to obtain the offset of the circle center of the lockhole, and uploads the offset to a factory MES system. The whole identification process is full-automatic and does not involve in manual work.
The utility model has the advantages that: adopt and detect simultaneously with size detection equipment, the shooting system installs in size detection equipment, steerable cost, and does not increase extra manual operation station, does not prolong the time of whole quality control. According to the scheme, a station for independently detecting the lock hole of the automobile tail door is not required to be added, staff for operating and controlling equipment is not required to be added, and high-precision lock hole detection is achieved on the premise that cost is shortened and control time is shortened.
The invention adopts the corner coaxial light source which saves space and is convenient and flexible to use, realizes the 90-degree corner turning of the light path, realizes the installation of the camera module on the size detection equipment and detects the position of the lock hole. The industrial camera is connected with a machine vision lens, and a coaxial light source is transferred to enable a light path to rotate by 90 degrees. 2 sets of shooting systems realize simultaneous detection.
The invention has the advantages of high accuracy, no missing detection, no loss of mechanical parts, high detection speed, small occupied installation space, obvious deployment advantages in limited space, full-automatic detection and abundant internal and external interfaces.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (5)
1. The utility model provides a car tail-gate lockhole position detecting device which characterized in that: the device comprises a first detection part and a second detection part, wherein the first detection part and the second detection part are respectively provided with an industrial camera, a machine vision lens and a corner coaxial light source, the industrial camera is coaxial with the machine vision lens, the corner coaxial light source is respectively provided with a first window and a second window which are perpendicular to each other, the machine vision lens is perpendicular to the second window, and the first windows of the first detection part and the second detection part face the same side of the detection device and are parallel to each other.
2. The device for detecting the position of the automobile tail gate keyhole according to claim 1, characterized in that: the industrial camera is mounted on an angular tilt table.
3. The device for detecting the position of the automobile tail gate keyhole according to claim 2, characterized in that: the angle inclined tables of the first detection part and the second detection part are fixedly connected with the bracket.
4. The device for detecting the position of the automobile tail gate keyhole according to claim 2, characterized in that: a beam splitting lens and a light source are arranged in the corner coaxial light source, light rays emitted by the light source form an angle of 45 degrees with the beam splitting lens, and two parts of light rays refracted by the beam splitting lens are perpendicular to the first window and the second window respectively.
5. An automobile tail gate size detection device, which is installed on the automobile tail gate size detection device by adopting the automobile tail gate lock hole position detection device of any one of claims 1 to 4, and is characterized in that: the automobile tail gate size detection equipment is provided with a position trigger, the position trigger is used for detecting whether the automobile tail gate reaches a detection position or not and starting an industrial camera of the first detection part and the second detection part, the industrial camera conveys an image to the image processing module, and the image processing module outputs position coordinates of the lock hole and compares the position coordinates with a standard size to output the offset of the circle center of the lock hole.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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CN202220885059.3U CN217358412U (en) | 2022-04-18 | 2022-04-18 | Position detection device and size detection equipment for lock hole of automobile tail door |
PCT/CN2022/119694 WO2023201980A1 (en) | 2022-04-18 | 2022-09-19 | Vehicle tailgate lock hole position detection apparatus and vehicle tailgate size measurement device |
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CN202220885059.3U CN217358412U (en) | 2022-04-18 | 2022-04-18 | Position detection device and size detection equipment for lock hole of automobile tail door |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2023201980A1 (en) * | 2022-04-18 | 2023-10-26 | 天津欣象科技有限公司 | Vehicle tailgate lock hole position detection apparatus and vehicle tailgate size measurement device |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
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CN202814342U (en) * | 2012-10-17 | 2013-03-20 | 广州市佳铭工业器材有限公司 | Workpiece automatic detecting device based on multi-camera image splicing |
CN104197836A (en) * | 2014-09-13 | 2014-12-10 | 江南大学 | Vehicle lock assembly size detection method based on machine vision |
CN105548185B (en) * | 2016-01-08 | 2018-12-11 | 浙江科技学院 | The recognition methods of automotive hub screw hole, covering method and system based on machine vision |
CN206862874U (en) * | 2017-07-13 | 2018-01-09 | 崔轶博 | A kind of rotary angle of 90 DEG is imaged coaxial light source detection means |
JP6546672B1 (en) * | 2018-02-22 | 2019-07-17 | 陽程科技股▲ふん▼有限公司 | Optical path detection device detection method |
CN209692941U (en) * | 2019-05-20 | 2019-11-26 | 奥普特视觉科技(苏州)有限公司 | A kind of multi-channel image detection device based on coaxial light source |
CN215639273U (en) * | 2021-06-21 | 2022-01-25 | 烟台大视工业智能科技有限公司 | Plane hole position degree detection device based on machine vision |
CN217358412U (en) * | 2022-04-18 | 2022-09-02 | 天津欣象科技有限公司 | Position detection device and size detection equipment for lock hole of automobile tail door |
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2022
- 2022-04-18 CN CN202220885059.3U patent/CN217358412U/en active Active
- 2022-09-19 WO PCT/CN2022/119694 patent/WO2023201980A1/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2023201980A1 (en) * | 2022-04-18 | 2023-10-26 | 天津欣象科技有限公司 | Vehicle tailgate lock hole position detection apparatus and vehicle tailgate size measurement device |
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