CN204705323U - A kind of car body controller connector pin normotopia degree pick-up unit - Google Patents
A kind of car body controller connector pin normotopia degree pick-up unit Download PDFInfo
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- CN204705323U CN204705323U CN201520463731.XU CN201520463731U CN204705323U CN 204705323 U CN204705323 U CN 204705323U CN 201520463731 U CN201520463731 U CN 201520463731U CN 204705323 U CN204705323 U CN 204705323U
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Abstract
The utility model belongs to Product checking field, is specifically related to a kind of car body controller connector pin normotopia degree pick-up unit.Pick-up unit comprises image acquisition units, motion control unit, servomotor unit, host computer processing unit and utility appliance, by black and white industrial camera, camera lens, LED light source, image pick-up card, electric machine controller, touch-screen, profibus bus module, SIEMENS PLC, servomotor, scrambler, industrial computer, pallet, guide rail, to be configured to; Camera is mounted on the image pick-up card in industrial computer PCI slot by GIGE, industrial computer is connected by Siemens's OPC communication with PLC, PLC, electric machine controller are connected by profibus bus module with servomotor, and PLC is connected by RS485 communication with touch-screen.The utility model device can help to realize car body controller connector pin normotopia degree quick, accurate, automatically detect.
Description
Technical field
The utility model belongs to Product checking field, is specifically related to a kind of car body controller connector pin normotopia degree pick-up unit.
Background technology
Automotive electronic technology achieves centralized control and the system management of vehicle, and become one of basic technology of Hyundai Motor development, wherein car body controller improves comfortableness and the convenience of driving, and importance becomes increasingly conspicuous.Be the important ring in car body controller quality testing for the accurate detection of pin normotopia degree on connector in car body controller production run, the flatness of bonder terminal and normotopia degree etc. differ greatly, and can cause the serious consequence such as short circuit and open circuit.Traditional pin normotopia degree detection method relies on artificial utilization to measure equipment and detect, and the not high and inefficiencies of precision, automaticity and reliability are not high.
The car body controller outward appearance that need detect as shown in Figure 2, needs the pin normotopia degree of 6 connectors on inspection vehicle body controller.
Utility model content
For the problems referred to above, the utility model provides a kind of car body controller connector pin normotopia degree pick-up unit based on machine vision.
The technical scheme that the utility model adopts is:
Car body controller connector pin normotopia degree pick-up unit comprises image acquisition units, motion control unit, servomotor unit, host computer processing unit and utility appliance.Image acquisition units is made up of 3 black and white industrial cameras, 1 Megapixel prime lens, 2 telecentric lens, 1 the coaxial LED light source of redness, 2 red circles LED light sources and image pick-up cards, Megapixel prime lens is arranged on black and white industrial camera 1,2 telecentric lens are arranged on black and white industrial camera 2 and 3 respectively, red coaxial LED light source is arranged on immediately below black and white industrial camera 1 camera lens, distance connector detection faces 50mm, 2 red circles LED light sources are arranged on immediately below black and white industrial camera 2 and 3 camera lens respectively, distance connector detection faces 65mm; Motion control unit is made up of electric machine controller, touch-screen, profibus bus module and SIEMENS PLC, and servomotor unit is made up of servomotor, scrambler, and host computer processing unit is made up of Industrial Control Computer; Black and white industrial camera is mounted on the image pick-up card in Industrial Control Computer PCI slot by GIGE ethernet communication, Industrial Control Computer is connected by Siemens's OPC communication with PLC, PLC, electric machine controller are connected by profibus bus module with servomotor, scrambler is arranged on servomotor, and PLC is connected by RS485 communication with touch-screen; Utility appliance comprises pallet, guide rail, support, and guide rails assembling is on support, and pallet is placed on guide rail, and servomotor drives pallet delivery test product to detect the pin normotopia degree of position to 6 connectors by 6 successively and detects.
This car body controller has 6 connectors (being respectively PWR2, COC, MR2, RBA1, PWR1 and MR1) to be needed to carry out the detection of normotopia degree, and Fig. 2 is shown in the distribution of connector.Consider accuracy of detection and cost, divide A, B, C tri-districts by 3 camera Subarea detectings according to the characteristic distributions of product connector, camera 1 inspection vehicle body controller a-quadrant connector PWR2, camera 2 detects B region connector COC, MR2, and camera 3 detects C region connector RBA1, PWR1 and MR1.The PWR2 connector pin that camera 1 detects is comparatively large, selects the mega pixel industry tight shot of the M118FM25 type of Japanese TAMRON; Camera 2 and camera 3 need the connector detected to have less pin, and consider the impact of distortion on accuracy of detection, choose the TC12080 type telecentric lens of Italian OPTO, the diameter of this camera lens reaches 116mm.According to the distribution of connector and the size of telecentric lens, consider that field erected convenience reserves certain installing space simultaneously, devise following camera mounting means: in the plan view from above that camera is installed, in horizontal direction, camera 1 is positioned in the middle of camera 2 and camera 3, camera 1 From Left camera 2 is 45mm, and distance the right camera 3 is 60mm; On front and back position camera 1 before, distance camera 2 be 100mm, is 200mm apart from camera 3; Camera 1 is 320mm with the operating distance of connector, and camera 2 is 226mm with the operating distance of connector, and camera 3 is 226mm with the operating distance of connector.The mounting means of 3 cameras as shown in Figures 3 and 4.
Advantageous Effects of the present utility model is:
Structure of the detecting device is simple, can help to realize car body controller connector pin normotopia degree quick, accurate, automatically detect.
Accompanying drawing explanation
Fig. 1 is car body controller connector pin normotopia degree structure of the detecting device figure.
In accompanying drawing 1, numbering 1,2,3 is black and white industrial cameras, numbering 4 is focal lengths is 25mm industrial lens, and numbering 5,6 is telecentric lens, and numbering 7 is red coaxial light sources, numbering 8,9 is red circles light sources, numbering 10 is pallets, and numbering 11 is products (car body controller), numbering 12 is guide rails, and numbering 13 is servomotors, numbering 14 is electric machine controllers, numbering 15 is touch-screens, and numbering 16 is Siemens S7-300 PLCs, and numbering 17 is host computers.
Fig. 2 is car body controller schematic diagram.
6 kinds of connector titles to be detected in accompanying drawing 2 are respectively PWR2, COC, MR2, RBA1, PWR1 and MR1 respectively in A, B, C tri-subregions.
Fig. 3 is the vertical view of 3 black and white industrial cameras installations and the position relationship with car body controller.
In accompanying drawing 3, black and white industrial camera 1,2,3 aims at A district, Product checking region, B district, C district respectively.
Fig. 4 is the front elevation that 3 black and white industrial cameras are installed.
Fig. 5 is the detection coordinates system O ' of RBA1 type connector.
Fig. 6 is car body controller connector pin normotopia degree testing process flow diagram.
Embodiment
Be described further below in conjunction with the embodiment of accompanying drawing to the utility model device.
First in PLC (16), setting 6 detects the coordinate of station, the technological parameter of setting present lot car body controller in host computer (17), then start detection.
When starting to detect, product to be measured (11) is by being manually placed on pallet (10), PLC (16) by electric machine controller (14) drive servomotor (13) delivery test product (11) to car body controller a-quadrant first connector (PWR2) detect station, after putting in place, PLC (16) sends by OPC communication the signal that puts in place, host computer (17) triggers black and white industrial camera (1) and takes pictures, and after obtaining picture, image procossing is completed by following 5 steps:
(1) calibration with demarcate the image that collects, select sizing grid to be the gridiron pattern scaling board of 1mm*1mm, adopt gamma correction pattern, corrected perspective distortion, radial distortion and planar linear distortion;
(2) the CogPMAlignTool function off-line training in the VisionPro vision software kit of Cognex company of the U.S. is adopted to be used for the characteristics of image of product coarse location, and the coordinate of the characteristics of image finding this characteristics of image to obtain matching by Feature Correspondence Algorithm and angle, the positional information of fitting circle region of search is calculated according to the coordinate corresponding relation of this characteristics of image and fitting circle region of search;
(3) adopt least square fitting connector both sides fastening screw circular hole to obtain the center of circle a and b in corresponding fitting circle region of search, with the mid point of a and b line for initial point, the line of a and b is y-axis, direction to the right, x-axis is perpendicular to y-axis, and direction is downward, sets up detection coordinates system O '; Wherein the detection coordinates system O ' of RBA1 type connector as shown in Figure 5, and the detection coordinates system O ' method for building up of all the other connectors is identical;
(4) carry out expansion process to image, select the square structure unit of 3*3 size, the initial point of structural elements is located at structural elements center, the speck phenomenon of rupture that the operation of this step causes because of oxidation for the treatment of pin;
(5) the speck image detecting each pin in connector obtains the image coordinate P (v of speck barycenter
p, h
p), and pass through formula
By image coordinate P (v
p, h
p) be transformed into coordinate P (x under detection coordinates system O '
p, y
p), in formula
for detection coordinates system is relative to the anglec of rotation of image coordinate system, v
oand h
ofor detection coordinates system initial point is relative to the bias size of image coordinate system initial point.
The Euclidean distance calculating pin coordinate and the standard form coordinate detected judges that whether product is qualified, host computer (17) shows testing result in real time, to detect data genaration accounting logging in host computer (17) and provide detect settling signal to PLC (16), PLC (16) drives servomotor (13) delivery test product (11) to detect station to next connector by electric machine controller (14), and namely first, B region connector (COC) detects station; Next second, B region, first, connector MR2, C region connector RBA1 and second, C region connector PWR1 is detected successively, until C region last connector (MR1) has been detected, now servomotor (13) driving tray (10) gets back to initial point, prepares next workpiece sensing.
It should be noted that car body controller a-quadrant gathers image by black and white industrial camera (1), B region gathers image by black and white industrial camera (2), C region gathers image by black and white industrial camera (3), the layout of black and white industrial camera is shown in accompanying drawing 3 and 4, and the workflow of system as shown in Figure 6.
It is more than preferred embodiment of the present utility model, not any pro forma restriction is done to the utility model, every according to technical spirit of the present utility model to any simple modification made for any of the above embodiments, equivalent variations and modification, all belong in the scope of utility model technical scheme.
Claims (2)
1. a car body controller connector pin normotopia degree pick-up unit, pick-up unit comprises image acquisition units, motion control unit, servomotor unit, host computer processing unit and utility appliance, it is characterized in that, image acquisition units is by 3 black and white industrial cameras, 1 Megapixel prime lens, 2 telecentric lens, 1 coaxial LED light source of redness, 2 red circles LED light sources and image pick-up card are formed, Megapixel prime lens is arranged on black and white industrial camera 1, 2 telecentric lens are arranged on black and white industrial camera 2 and 3 respectively, red coaxial LED light source is arranged on immediately below black and white industrial camera 1 camera lens, distance connector detection faces 50mm, 2 red circles LED light sources are arranged on immediately below black and white industrial camera 2 and 3 camera lens respectively, distance connector detection faces 65mm, motion control unit is made up of electric machine controller, touch-screen, profibus bus module and SIEMENS PLC, and servomotor unit is made up of servomotor, scrambler, and host computer processing unit is made up of Industrial Control Computer, black and white industrial camera is mounted on the image pick-up card in Industrial Control Computer PCI slot by GIGE ethernet communication, Industrial Control Computer is connected by Siemens's OPC communication with PLC, PLC, electric machine controller are connected by profibus bus module with servomotor, scrambler is arranged on servomotor, and PLC is connected by RS485 communication with touch-screen, utility appliance comprises pallet, guide rail, support, and guide rails assembling is on support, and pallet is placed on guide rail, and servomotor drives pallet delivery test product to detect the pin normotopia degree of position to 6 connectors by 6 successively and detects.
2. a kind of car body controller connector pin normotopia degree pick-up unit according to claim 1, is characterized in that, divide A, B, C tri-districts by 3 camera Subarea detectings according to the distribution of product connector; Camera 1 inspection vehicle body controller a-quadrant connector PWR2, camera 2 detects B region connector COC, MR2, and camera 3 detects C region connector RBA1, PWR1 and MR1; In the plan view from above of 3 camera installations, in horizontal direction, camera 1 is positioned in the middle of camera 2 and camera 3, and camera 1 From Left camera 2 is 45mm, and distance the right camera 3 is 60mm; On front and back position camera 1 before, distance camera 2 be 100mm, is 200mm apart from camera 3; Camera 1 is 320mm with the operating distance of connector, and camera 2 is 226mm with the operating distance of connector, and camera 3 is 226mm with the operating distance of connector.
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108507472A (en) * | 2018-03-19 | 2018-09-07 | 江南大学 | A kind of safe automobile air bag strip of paper used for sealing size non-contact vision detection method |
CN108958158A (en) * | 2018-07-09 | 2018-12-07 | 三花亚威科电器设备(芜湖)有限公司 | A kind of intelligence system of online automatic printing bar code |
CN110068271A (en) * | 2019-04-19 | 2019-07-30 | 怡得乐电子(杭州)有限公司 | The PIN needle position degree detection method of the large size product of sub-pixel precision |
CN110632951A (en) * | 2019-09-23 | 2019-12-31 | 湖南视普瑞智能科技有限公司 | Intelligent visual servo guidance equipment and guidance method thereof |
-
2015
- 2015-07-01 CN CN201520463731.XU patent/CN204705323U/en not_active Expired - Fee Related
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108507472A (en) * | 2018-03-19 | 2018-09-07 | 江南大学 | A kind of safe automobile air bag strip of paper used for sealing size non-contact vision detection method |
CN108958158A (en) * | 2018-07-09 | 2018-12-07 | 三花亚威科电器设备(芜湖)有限公司 | A kind of intelligence system of online automatic printing bar code |
CN110068271A (en) * | 2019-04-19 | 2019-07-30 | 怡得乐电子(杭州)有限公司 | The PIN needle position degree detection method of the large size product of sub-pixel precision |
CN110632951A (en) * | 2019-09-23 | 2019-12-31 | 湖南视普瑞智能科技有限公司 | Intelligent visual servo guidance equipment and guidance method thereof |
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CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151014 Termination date: 20160701 |