CN202948147U - Machine vision-based detection system for fracture splitting notch in automobile connecting rod - Google Patents
Machine vision-based detection system for fracture splitting notch in automobile connecting rod Download PDFInfo
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- CN202948147U CN202948147U CN 201220694973 CN201220694973U CN202948147U CN 202948147 U CN202948147 U CN 202948147U CN 201220694973 CN201220694973 CN 201220694973 CN 201220694973 U CN201220694973 U CN 201220694973U CN 202948147 U CN202948147 U CN 202948147U
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Abstract
The utility model discloses a machine vision-based detection system for a fracture splitting notch in an automobile connecting rod, which overcomes the fracture splitting problem of connecting rods with no fracture splitting notches. The machine vision-based detection system comprises a computer, a programmable logic controller, an output success indicating lamp, an output failure indicating lamp, an output alarm lamp, a relay, a light source controller, a No.1 camera, a light source, a photoelectric switch, a No.2 camera and a power supply. The No.1 camera is connected with the camera line of the computer. The No.2 camera is connected with the camera line of the No.1 camera. The computer is connected with the communication line of the programmable logic controller. The light source is connected with the light source controller through an electric wire. The photoelectric switch is connected with the first input port I0.0 of the programmable logic controller through an electric wire. The relay is connected with the light source controller through an electric wire. The programmable logic controller and the power supply are connected together through an electric wire. The output success indicating lamp, the output failure indicating lamp, the output alarm lamp and the control pin of the relay are sequentially connected with the output ports Q0.0, Q0.1, Q0.2 and Q0.3 of the programmable logic controller through electric wires.
Description
Technical field
The utility model relates to a kind of pick-up unit of mechanical component, and or rather, the utility model relates to a kind of automobile connecting bar splitter detection system based on machine vision.
Background technology
Since the nineties in 20th century, the automobile connecting bar cracking technique was full-fledged in auto industry developed country, has replaced gradually traditional Machining of Connecting Rod technique, and become the important symbol of a national engine link development of manufacturing level.
The con-rod fracture splitting process technology mainly contains three road core process: processing crank pin end pore initial cracking groove; Apply radial force, cracking connecting-rod and the bowl cover operation that accurately resets; Decide bolt operation on moment of torsion.The automatic production process of every procedure and equipment are all the prerequisites and basis that ensures the con-rod fracture splitting quality.
In process of production, the crank pin end pore initial cracking groove is processed by laser, this process is the process line of a full-automation, but two splitters of its symmetry separately process, therefore occur that leakage processing, the processing of con-rod fracture splitting groove is defective belongs to normal in fact.The not corresponding judgment mechanism that detects of this process in addition, situation about usually occurring be connecting rod only a side complete processing, certainly both sides all unprocessed situation sometimes also can occur.In addition, be sent to after processing splitter in the process of cracking, often can occur the connecting rod of some undressed splitters is sneaked into wherein situation, increased the mortality of con-rod fracture splitting.Cracking connecting-rod is the production operation process of a semi-automation, needs manually connecting rod to be put on the cracking platform one by one, and be that the whether qualified preferably opportunity that judges is processed, processed to the con-rod fracture splitting groove whether at this moment.At present, nearly all workshop all adopts artificial naked eyes identification, but due to the metallic luster of workshop light, connecting rod, people's visual fatigue etc. factor, the accuracy of artificial cognition is very low.Therefore, tend to some splitters undressedly complete, the connecting rod of even undressed splitter carried out cracking, thereby caused the cracking failure of connecting rod, both seriously reduced being cracked into power, caused again many economic losses.Because of a little, whether qualified be sought after an automatic checkout system to the whether existence of con-rod fracture splitting groove before cracking and detect judgement, be to carry out cracking, is not to give a warning, remind the staff must not carry out cracking, in order to increase success ratio, the reduction loss of cracking.
Summary of the invention
Technical problem to be solved in the utility model is to have overcome prior art to have the problem that the undressed connecting rod of completing of some splitters is carried out cracking, and a kind of automobile connecting bar splitter detection system based on machine vision is provided.
For solving the problems of the technologies described above, the utility model is to adopt following technical scheme to realize: described automobile connecting bar splitter detection system based on machine vision comprises that machine is calculated machine, programmable logic controller (PLC), output success pilot lamp, exported failed pilot lamp, output alarm lamp, relay, light source controller, No. 1 camera, light source, optoelectronic switch, No. 2 cameras and power supply.
computing machine is connected with an interface camera line of No. 1 camera, No. 2 camera is connected with another interface camera line of No. 1 camera, computing machine is connected with the programmable logic controller (PLC) order wire, light source is connected with the delivery outlet electric wire of light source controller, the output terminal of optoelectronic switch is connected with first input port I0.0 electric wire of programmable logic controller (PLC), the output terminal of relay is connected with the input power mouth electric wire of light source controller, programmable logic controller (PLC) is connected with power cable, export successful pilot lamp, export failed pilot lamp, the control pin of output alarm lamp and relay meets the delivery outlet Q0.0 of programmable logic controller (PLC) successively, delivery outlet Q0.1, delivery outlet Q0.2 is connected with delivery outlet Q0.3 electric wire.
It is the industrial computer of IPPC-6152A that machine calculation machine described in technical scheme is selected the model of grinding the production of magnificent company, and the configuration model is 1394 image pick-up cards of FWB-PCI3202A.Described No. 1 camera is identical with No. 2 camera structures, and all adopting model that Sony Corporation produces is that the CCD camera of XCD-SX90 and model that COMPUTAR company produces are the 75mm optical lens of M7514-MP.The model that described programmable logic controller (PLC) adopts Siemens Company to produce is the programmable logic controller (PLC) of S7-200CN.It is the light source controller of AP12-02 that described light source controller adopts model.
Computing machine described in technical scheme is connected with an interface camera line of No. 1 camera, No. 2 cameras are connected with another interface camera line of No. 1 camera and refer to: computing machine adopts No. 1 connecting line to be connected with an interface of No. 1 camera, No. 2 camera adopts No. 2 connecting lines to be connected with another interface of No. 1 camera, and it is the connecting line of AVT 1394B that No. 1 connecting line and No. 2 connecting lines are all selected the model in 1394 connecting lines.
Computing machine described in technical scheme is connected with the programmable logic controller (PLC) order wire and refers to: computing machine adopts the programmable logic controller (PLC) connecting line to be connected with programmable logic controller (PLC), it is that cable or the model of PC/PPI is the connecting line of Siemens 6ES7 901-3CB30-0XA0 that the programmable logic controller (PLC) connecting line is selected model, adopting model is the cable of PC/PPI: model is the COM port or COM device or COM1 of RS232 termination computing machine of the cable of PC/PPI, and model is the serial ports of RS485 termination programmable logic controller (PLC) of the cable of PC/PPI.
Light source described in technical scheme is positioned on the medium line of No. 1 camera and No. 2 cameras, light source is in the vertical direction height-adjustable, No. 1 camera and No. 2 cameras are positioned at the same level directly over the cracking platform, No. 1 camera is installed symmetrically with No. 2 relative light sources of camera, light source be in the measured workpiece connecting rod directly over, optoelectronic switch is arranged on the con-rod fracture splitting platform.
Output described in technical scheme success pilot lamp, export positive grade that failed pilot lamp, output alarm lamp and the positive level of relay be connected with ground wire with power supply and be connected with the ground wire electric wire.
Within programmable logic controller (PLC) described in technical scheme, relay, light source controller and power supply are arranged on a box, export successful pilot lamp, output failure pilot lamp and output alarm lamp and be arranged on the box surface.
Compared with prior art the beneficial effects of the utility model are:
1. the splitter on present nearly all connecting rod all adopts artificial naked eyes identification, automobile connecting bar splitter detection system based on machine vision described in the utility model is the detection system of a full-automation, not only greatly reduce workman's workload, and significantly improved the efficient of con-rod fracture splitting qualification rate and con-rod fracture splitting.
2. owing to adopting the method based on machine vision that the con-rod fracture splitting groove is detected and judges, therefore not needing directly to contact connecting rod just can carry out work, do not need existing cracking platform is reequiped and revised yet, greatly improved interface and practicality based on the automobile connecting bar splitter detection system of machine vision.
3. use programmable logic controller (PLC), industrial computer, industrial camera etc. to be applicable to the device of industrial site, because they all can adapt to various abominable running environment, antijamming capability is strong, so the utility model is more conducive to be applied in industry spot.
4. the utility model through operation test for a long time, proves that it has very outstanding stability and accuracy based on the automobile connecting bar splitter detection system of machine vision, can be applied to many con-rod fracture splittings working sites fully.
Description of drawings
Below in conjunction with accompanying drawing, the utility model is further described:
Fig. 1 is the schematic block diagram that forms based on the automobile connecting bar splitter detection system structure of machine vision described in the utility model;
In figure: 1. machine is calculated machine, 2. programmable logic controller (PLC), the 3. successful pilot lamp of output, 4. export failed pilot lamp, 5. output alarm lamp, 6. relay, 7. light source controller, No. 8.1 cameras, 9. light sources, 10. optoelectronic switch, 11.1 number connecting line, No. 12.2 connecting lines, 13. programmable logic controller (PLC) connecting lines, 14.2 number camera, 15. power supplys.
Embodiment
Below in conjunction with accompanying drawing, the utility model is explained in detail:
Automobile connecting bar splitter detection system based on machine vision described in the utility model is to utilize the method for machine vision to realize the accurate detection of automobile connecting bar splitter.Because the automobile connecting bar splitter detection system based on machine vision described in the utility model is mainly used in industry spot, so each parts will be selected the device that antijamming capability is strong, can be applicable to rugged surroundings as far as possible.
Automobile connecting bar splitter detection system based on machine vision described in the utility model mainly is comprised of with power supply 15 machine calculation machine 1, programmable logic controller (PLC) 2, the successful pilot lamp 3 of output, the failed pilot lamp 4 of output, output alarm lamp 5, relay 6, light source controller 7, No. 1 camera 8, light source 9, optoelectronic switch 10, No. 1 connecting line 11, No. 2 connecting lines 12, programmable logic controller (PLC) connecting line 13, No. 2 cameras 14.
Described No. 1 camera 8 is identical with No. 2 camera 14 structures, in selecting No. 1 camera 8 and No. 2 camera 14 processes except considering that application places, most importantly its major parameter will satisfy requirement of the present utility model: as to require camera be gray scale camera, high resolving power, high frame per second.Camera lens will be selected according to the camera of having chosen, and requires to have amplification effect, can know and see splitter.The model that the utility model selects Sony Corporation to produce is that the CCD camera of XCD-SX90 and model that COMPUTAR company produces are the 75mm optical lens of M7514-MP.
Described computing machine 1 is selected industrial computer, due to the acquisition and processing that will carry out image, must be equipped with and selected No. 1 camera 8 and No. 2 corresponding image pick-up cards of camera 12; Aspect of performance requires to have higher arithmetic speed and larger internal memory.It is the industrial computer (allocating default) of IPPC-6152A that the utility model is selected the model of grinding the production of magnificent company, the interface that is the CCD camera of XCD-SX90 due to model is 1394 interfaces, therefore, capture card selection model is 1394 image pick-up cards of FWB-PCI 3202A.
Described programmable logic controller (PLC) 2 needs to carry out data communication with computing machine 1, therefore, programmable logic controller (PLC) 2 must have communication interface, in addition, the input/output port of using in automobile connecting bar splitter detection system based on machine vision described in the utility model all is no more than 5, and the model that the automobile connecting bar splitter detection system based on machine vision described in the utility model selects Siemens Company to produce is S7-200CN(CPU 222CN 8DI/6D0) programmable logic controller (PLC).
Described light source 9 will be considered its illumination color, illumination intensity and light-emitting area when selecting, requiring provides Light Source Compensation to the shooting of No. 1 camera 8 and No. 2 cameras 14.The model that automobile connecting bar splitter detection system based on machine vision described in the utility model selects the company that opens up of alliance to produce is the white annular light source of MT-7230-R-G.
Described light source controller 7 will be selected according to light source 9, requires its intensity of illumination adjustable.It is the light source controller of AP12-02 that the white annular light source that is MT-7230-R-G based on the automobile connecting bar splitter detection system of machine vision according to model described in the utility model has been selected model.
Described No. 1 connecting line 11 is identical with No. 2 connecting line 12 structures, No. 1 connecting line 11 and No. 2 connecting lines 12 need to configure according to No. 1 camera 8 and No. 2 cameras 14, so, if when to have selected model be the camera of XCD-SX90, No. 1 connecting line 11 and No. 2 connecting lines 12 are selected 1394 connecting lines, specifically selecting model is the connecting line of AVT 1394B; Programmable logic controller (PLC) connecting line 13 between programmable logic controller (PLC) 2 and computer 1 will decide according to programmable logic controller (PLC) 2, if when selecting model to be the programmable logic controller (PLC) of S7-200CN, programmable logic controller (PLC) connecting line 13 employing models are that cable or the model of PC/PPI is the connecting line of Siemens 6ES7 901-3CB30-0XA0.
Export successful pilot lamp 3, output failed pilot lamp 4, output alarm lamp 5, relay 6, optoelectronic switch 10 and can select respectively green indicating lamp, red led, hummer, common relay, normal optical electric switch get final product, power supply 15 selection voltages are the conventional DC power supply of 24V.
Adopting model is that model on the computing machine 1 of 1394 image pick-up cards that model is FWB-PCI 3202A will be installed is that 1394 image pick-up cards of FWB-PCI 3202A are connected with an interface of No. 1 camera 8 for No. 1 connecting line 11 of AVT 1394B, No. 2 cameras 14 are by No. 2 connecting lines 12 be connected with another interface of No. 1 camera 8 (two cameras form the form that is connected in series, and respective description is also arranged on the camera instructions); Use model as the cable of PC/PPI, the serial ports of computing machine 1 with programmable logic controller (PLC) 2 to be connected, be that model is the COM port or COM device or COM1 of RS232 termination computing machine 1 of the cable of PC/PPI, model is the serial ports of RS485 termination programmable logic controller (PLC) 2 of the cable of PC/PPI.Light source 9 is connected with the delivery outlet electric wire of light source controller 7, light source 9 should be positioned on the medium line of No. 1 camera 8 and No. 2 cameras 14, light source 9 is in the vertical direction height-adjustable, No. 1 camera 8 and No. 2 cameras 14 are positioned at the same level directly over the cracking platform, No. 1 camera 8 is installed with No. 2 relative light source symmetries of camera 14, light source 9 be in place measured workpiece the cracking platform in other words the measured workpiece connecting rod directly over, left camera 8 should photograph the picture rich in detail of con-rod fracture splitting groove right side cut channel, and right camera 8 photographs the picture rich in detail of left side cut channel.Optoelectronic switch 10 will be arranged on the con-rod fracture splitting platform, and it just can be triggered after putting into connecting rod, and principle is can not affect normal cracking process can make the native system safe operation again.The output terminal of optoelectronic switch 10 is connected with first input port I 0.0 electric wire of programmable logic controller (PLC) 2.The outside 220V power supply of the input termination of relay 6, the output terminal of relay 6 is connected with the input power mouth electric wire of light source controller 7, programmable logic controller (PLC) 2 provides the 24V direct current by power supply 15, the control pin of exporting successful pilot lamp 3, output failed pilot lamp 4, output alarm lamp 5, relay 6 meets the delivery outlet Q0.0 of programmable logic controller (PLC) 2, delivery outlet Q0.1, delivery outlet Q0.2, delivery outlet Q0.3 successively, export the ground wire electric wire connection that the ground wire of successful pilot lamp 3, the failed pilot lamp 4 of output, output alarm lamp 5, relay 6 is connected with power supply.For the safety of integral body and attractive in appearance, within programmable logic controller (PLC) 2, relay 6, light source controller 7 are arranged on a box with power supply 15, exports successful pilot lamp 3, the failed pilot lamp 4 of output and output alarm lamp 5 and be arranged on the box surface.
The utility model is based on the principle of work of the automobile connecting bar splitter detection system of machine vision:
At first, when having connecting rod to detect, connecting rod is placed into triggers optoelectronic switch 10 in the process of cracking platform and send signal, this signal triggers to programmable logic controller (PLC) 2 as input, programmable logic controller (PLC) 2 needs the signal that detects to computing machine 1 by communication serial port, in computing machine 1, corresponding detection software receives and carries out following two operations after signal:
1. open light signal by communication serial port to programmable logic controller (PLC) 2, programmable logic controller (PLC) 2 receives pilot relay 6 conductings after signal, and then opens light source controller 7 light source 9 is lighted;
2. open successively No. 1 camera 8 and No. 2 cameras 14 and carry out picture collection by No. 1 connecting line 11 and No. 2 connecting lines 12.
The picture that collects is carried out analyzing and processing by corresponding detection software in computing machine 1, judges whether to exist splitter, complete detect after by communication port to programmable logic controller (PLC) 2 output detections consequential signals.
After programmable logic controller (PLC) 2 receives signal, the control Output rusults shows, if testing result is successfully will exports successful pilot lamp 3 and put bright, testing result be unsuccessfully (comprise a side detects unsuccessfully all detect failure with both sides) will export failed pilot lamp 4 and put bright, and carry out output alarm lamp 4 and send warning, remind the staff must not carry out cracking operation.
Claims (7)
1. automobile connecting bar splitter detection system based on machine vision, it is characterized in that, described automobile connecting bar splitter detection system based on machine vision comprises that machine is calculated machine (1), programmable logic controller (PLC) (2), exports successful pilot lamp (3), exported failed pilot lamp (4), output alarm lamp (5), relay (6), light source controller (7), No. 1 camera (8), light source (9), optoelectronic switch (10), No. 2 cameras (14) and power supply (15);
computing machine (1) is connected with an interface camera line of No. 1 camera (8), No. 2 cameras (14) are connected with another interface camera line of No. 1 camera (8), computing machine (1) is connected with programmable logic controller (PLC) (2) order wire, light source (9) is connected with the delivery outlet electric wire of light source controller (7), the output terminal of optoelectronic switch (10) is connected with first input port I 0.0 electric wire of programmable logic controller (PLC) (2), the output terminal of relay (6) is connected with the input power mouth electric wire of light source controller (7), programmable logic controller (PLC) (2) is connected with power supply (15) electric wire, export successful pilot lamp (3), export failed pilot lamp (4), the control pin of output alarm lamp (5) and relay (6) meets the delivery outlet Q0.0 of programmable logic controller (PLC) (2) successively, delivery outlet Q0.1, delivery outlet Q0.2 is connected with delivery outlet Q0.3 electric wire.
2. according to the automobile connecting bar splitter detection system based on machine vision claimed in claim 1, it is characterized in that, it is the industrial computer of IPPC-6152A that described machine calculation machine (1) is selected the model of grinding the production of magnificent company, and the configuration model is 1394 image pick-up cards of FWB-PCI3202A;
Described No. 1 camera (8) is identical with No. 2 cameras (14) structure, and all adopting model that Sony Corporation produces is that the CCD camera of XCD-SX90 and model that COMPUTAR company produces are the 75mm optical lens of M7514-MP;
The model that described programmable logic controller (PLC) (2) adopts Siemens Company to produce is the programmable logic controller (PLC) of S7-200CN;
It is the light source controller of AP12-02 that described light source controller (7) adopts model.
3. according to the automobile connecting bar splitter detection system based on machine vision claimed in claim 1, it is characterized in that, described computing machine (1) is connected with an interface camera line of No. 1 camera (8), and No. 2 cameras (14) are connected with another interface camera line of No. 1 camera (8) and refer to:
Computing machine (1) adopts No. 1 connecting line (11) to be connected with an interface of No. 1 camera (8), No. 2 cameras (14) adopt No. 2 connecting lines (12) to be connected with another interface of No. 1 camera (8), and it is the connecting line of AVT 1394B that No. 1 connecting line (11) is all selected the model in 1394 connecting lines with No. 2 connecting lines (12).
4. according to the automobile connecting bar splitter detection system based on machine vision claimed in claim 1, it is characterized in that, described computing machine (1) is connected with programmable logic controller (PLC) (2) order wire and refers to:
Computing machine (1) adopts programmable logic controller (PLC) connecting line (13) to be connected with programmable logic controller (PLC) (2), it is that cable or the model of PC/PPI is the connecting line of Siemens 6ES7 901-3CB30-0XA0 that programmable logic controller (PLC) connecting line (13) is selected model, adopting model is the cable of PC/PPI: model is the COM port or COM device or COM1 of RS232 termination computing machine (1) of the cable of PC/PPI, and model is the serial ports of RS485 termination programmable logic controller (PLC) (2) of the cable of PC/PPI.
5. according to the automobile connecting bar splitter detection system based on machine vision claimed in claim 1, it is characterized in that, described light source (9) is positioned on the medium line of No. 1 camera (8) and No. 2 cameras (14), light source (9) is in the vertical direction height-adjustable, No. 1 camera (8) and No. 2 cameras (14) are positioned at the same level directly over the cracking platform, No. 1 camera (8) is installed symmetrically with the relative light sources of No. 2 cameras (14) (9), light source (9) be in the measured workpiece connecting rod directly over, optoelectronic switch (10) is arranged on the con-rod fracture splitting platform.
6. according to the automobile connecting bar splitter detection system based on machine vision claimed in claim 1, it is characterized in that, the successful pilot lamp of described output (3), export positive grade that failed pilot lamp (4), output alarm lamp (5) and the positive level of relay (6) be connected with ground wire with power supply (15) and be connected with the ground wire electric wire.
7. according to the automobile connecting bar splitter detection system based on machine vision claimed in claim 1, it is characterized in that, within described programmable logic controller (PLC) (2), relay (6), light source controller (7) are arranged on a box with power supply (15), export successful pilot lamp (3), export failed pilot lamp (4) and output alarm lamp (5) and be arranged on the box surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220694973 CN202948147U (en) | 2012-12-15 | 2012-12-15 | Machine vision-based detection system for fracture splitting notch in automobile connecting rod |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220694973 CN202948147U (en) | 2012-12-15 | 2012-12-15 | Machine vision-based detection system for fracture splitting notch in automobile connecting rod |
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| CN202948147U true CN202948147U (en) | 2013-05-22 |
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| CN 201220694973 Expired - Fee Related CN202948147U (en) | 2012-12-15 | 2012-12-15 | Machine vision-based detection system for fracture splitting notch in automobile connecting rod |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102967888A (en) * | 2012-12-15 | 2013-03-13 | 吉林大学 | System for detecting fracture splitting notch of connecting rod of automobile based on machine vision |
| CN106770313A (en) * | 2016-11-25 | 2017-05-31 | 鹭鹭科技（上海）有限公司 | A kind of detecting system of automobile armrest |
-
2012
- 2012-12-15 CN CN 201220694973 patent/CN202948147U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102967888A (en) * | 2012-12-15 | 2013-03-13 | 吉林大学 | System for detecting fracture splitting notch of connecting rod of automobile based on machine vision |
| CN102967888B (en) * | 2012-12-15 | 2015-10-21 | 吉林大学 | Based on the automobile connecting bar splitter detection system of machine vision |
| CN106770313A (en) * | 2016-11-25 | 2017-05-31 | 鹭鹭科技（上海）有限公司 | A kind of detecting system of automobile armrest |
| CN106770313B (en) * | 2016-11-25 | 2019-11-01 | 鹭鹭科技（上海）有限公司 | A kind of detection system of automobile armrest |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130522 Termination date: 20151215 |
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| EXPY | Termination of patent right or utility model |