CN104122498B - Photoelectric approach switch motion distance detection system - Google Patents
Photoelectric approach switch motion distance detection system Download PDFInfo
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- CN104122498B CN104122498B CN201310157439.0A CN201310157439A CN104122498B CN 104122498 B CN104122498 B CN 104122498B CN 201310157439 A CN201310157439 A CN 201310157439A CN 104122498 B CN104122498 B CN 104122498B
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Abstract
The invention relates to a photoelectric approach switch motion distance detection system which comprises a mobile end detection platform, a fixed end detection platform and a detection control module. A mobile end detection plane is arranged on the mobile end detection platform, a fixed end detection plane is arranged on a fixed end detection platform, and an illuminator and a light receptor of a detected sample are fixed at the center axis positions of the mobile end detection plane and the fixed end detection plane respectively. The mobile end detection platform comprises an aligning mechanism, the aligning mechanism is utilized to adjust the mobile end detection plane to enable the mobile end detection plane to be parallel to the fixed end detection plane, a centering detection mechanism is arranged on the fixed end detection platform, center axes of the fixed end detection plane and the mobile end detection plane coincide through the centering detection mechanism, and motion distance detection is conducted by adjusting the relative distance between the fixed end detection plane and the mobile end detection plane. Compared with the prior art, the system has the advantage of being convenient to adjust, high in detection accuracy and the like.
Description
Technical field
The present invention relates to a kind of photo-electric proximity switch detecting system, especially relate to a kind of to photo-electric proximity switch
The system that operating distance is detected.
Background technology
Photo-electric proximity switch is a kind of sensor detecting testee using light, is by proximity switch launching light
Signal, after proximity switch detects the optical signal being obscured by an object or reflecting, can react rapidly and be converted to corresponding telecommunications
Number come to realize control device.Because photo-electric proximity switch has small volume, accuracy of detection height, distance of reaction length, frequency sound
Answer the features such as fast, long service life and strong antijamming capability, be widely used in the numerous areas such as industrial automatic control.
The detection commonly used manual inspection test product of traditional photo-electric proximity switch operating distance, poor reliability, detection
Efficiency is low, and detection accuracy hardly results in guarantee, there is larger potential safety hazard simultaneously.And examined by external equipment individually
The precise movement distance of light-metering electric-type proximity switch, is constantly subjected to that detecting distance is short, it is non-adjustable to shift near speed, angle bias effect
The impact of numerous uncertain factors such as big and ambient light interference.Development with low-voltage electrical apparatus industry and proximity switch species are not
Disconnected increase, the detection that traditional detection method cannot meet increasingly stringent requires, to photo-electric proximity switch operating distance
The development of testing equipment seriously lagged behind the development speed of low-voltage electrical apparatus industry.
Content of the invention
The purpose of the present invention is exactly to overcome the defect of above-mentioned prior art presence to provide a kind of easy to adjust, detection
The photo-electric proximity switch operating distance detecting system of high precision.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of photo-electric proximity switch operating distance detecting system, this detecting system includes mobile terminal detection platform, fixation
End detection platform and detection control module, mobile terminal detection platform is provided with mobile terminal detection plane, fixing end detection platform
It is provided with fixing end detection plane, the photophore of detection sample and light-receiving device are separately fixed at mobile terminal detection plane and fixing end inspection
Survey the central axis of plane, described mobile terminal detection platform includes, to flattening mechanism, by this, flattening mechanism being adjusted with mobile terminal inspection
Survey plane so as to parallel with fixing end detection plane, described fixing end detection platform is provided with centering testing agency, right by this
Middle testing agency is so that fixing end detects that the center overlapping of axles of plane is detected in plane and mobile terminal, and it is flat to adjust fixing end detection
The relative distance of plane is detected with mobile terminal in face, carries out operating distance detection.
Described flattening mechanism is included be arranged at the U axle servo that mobile terminal detected in plane and detected that control module connects
The laser range sensor of motor, V axle servomotor and three settings triangular in shape, by described three laser rangings sensing
Device obtains mobile terminal and detects that plane and fixing end detect the range information of three points in plane, and detection controls mould according to range information
Judge whether parallel, if not parallel, mobile terminal adjusted by U axle servomotor and V axle servomotor and detects plane, until flat
OK.
Described centering testing agency includes the electronic slide unit of three axles and centering boss, and fixing end detection plane passes through three axle electricity
Dynamic slide unit is fixed in fixing end detection platform, and centering boss is arranged in fixing end detection plane, described three axle electric slidings
Platform includes the electronic slide unit of X-axis, the electronic slide unit of Y-axis and the electronic slide unit of Z axis, the described position of centering boss and one of laser
Distance measuring sensor corresponds to, when fixing end detection plan-position is adjusted by the electronic slide unit of described Y-axis and the electronic slide unit of Z axis, if
The position of described laser range sensor is overlapped with the position of centering boss, and the range information that it detects produces mutation, then sentence
Determine fixing end and detect that the center overlapping of axles of plane is detected in plane and mobile terminal, the electronic slide unit of described X-axis is used for adjusting fixing end
The relative distance of plane is detected in detection plane and mobile terminal, carries out operating distance detection.
The translational speed of the electronic slide unit of described X-axis is adjustable, and its fast translational speed and the slowest translational speed are respectively
100mm/s and 1mm/s.
Described detection control module includes PLC and connected industrial computer.
Compared with prior art, the present invention has advantages below：
1st, the parallel and axial focusing of plane realizing remote two detection planes using laser technology is it is ensured that shift near process
In, the straight line focusing all the time of the photophore of detection sample and light-receiving device two overlapping of axles.
2nd, the electronic slide unit of X-axis is adjustable to shifting near speed need, shifts near speed the soonest and need to reach 100mm/s, moves close to test product
Make speed can be down to 1mm/s during distance range it is ensured that detects is quick and accurate.
3rd, detection plane is arranged on fixation to parallel system using 3 laser range sensors and 2 servomotors automatically
Position, combines, by 3 laser sensors, the relative inclination calculating two detection planes two-by-two, adjusts two inspections by two servomotors
Survey the relative inclination of plane so that two detection plane keeping parallelisms, easy to adjust.
4th, detection plane automatic axial center support system adopts 2 electronic slide units and 1 centering boss, and this centering boss is installed
Detect on the fixed position of plane in fixing end, move fixing end by 2 electric slide units and detect plane, make two opposing parallel inspections
Survey plane and relative motion occurs, when laser range sensor detects centering boss, when distance is undergone mutation, that is, realize two detections
The automatic axial centering of plane.
5th, adjust before being surveyed using electronic slide unit and servomotor and detect, all parts can pass through PLC and industrial computer
Independent control, easy to operate, detection efficiency is high.
Brief description
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the flow chart being detected using the present invention；
Label declaration：1st, fixing end detection platform；2nd, mobile terminal detection platform；3rd, universal wheel；4th, U axle servomotor；5、
Laser range sensor；6th, V axle servomotor；7th, mobile terminal detection plane；8th, detect control module；9th, fixing end detection is flat
Face；10th, centering boss；11st, jaw；12nd, the electronic slide unit of Z axis；13rd, the electronic slide unit of Y-axis；14th, the electronic slide unit of X-axis.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment
As shown in figure 1, a kind of photo-electric proximity switch operating distance detecting system, this detecting system includes mobile terminal detection
Platform 2, fixing end detection platform 1 and detection control module 8.Mobile terminal detection platform be provided with mobile terminal detection plane 7 with
And it is located at the Laser Measuring that U axle servomotor 4, V axle servomotor 6 and three settings triangular in shape in plane 7 are detected in mobile terminal
Away from sensor 5.Fixing end detection platform 1 is provided with fixing end detection plane 9, the electronic slide unit of three axles and centering boss 10, fixing end
Detection plane 9 is fixed in fixing end detection platform 1 by the electronic slide unit of three axles, and it is flat that centering boss 10 is arranged on fixing end detection
On face.The electronic slide unit of three axles includes the electronic slide unit of X-axis 14, the electronic slide unit of Y-axis 13 and the electronic slide unit of Z axis 12, and wherein, X-axis is electronic
Slide unit 14 is used for adjusting the relative distance that fixing end detects plane 9 and mobile terminal detection plane 7, carries out operating distance detection, Y-axis
Electronic slide unit 13 and the electronic slide unit of Z axis 12 are used for carrying out the centering of two planes.Detection control module 8 is arranged on fixing end detection
On platform 1, include PLC and industrial computer.Additionally, the bottom of mobile terminal detection platform 2, fixing end detection platform 1 can
To arrange universal wheel 3, to facilitate the regulation of position.
In the present embodiment, PLC adopts siemens PLC series CPU224XPSi PLC, and industrial computer is using grinding
China touches flat board industrial computer.For meeting the demand of system I/O and leaving the surplus of a bit, therefore select one piece of 32-bit number amount defeated
Enter output module EM233.Servo electrical machinery system selects the servo amplifier of Mitsubishi J2-10A and the servo electricity of HC-KFS 100W
Machine.The electronic slide unit of the LEC series of SMC company selected by electronic slide unit.Laser range sensor is from German Acetech company
LRFS-0200-420 laser range finder.Servomotor, the electronic slide unit and laser range sensor I/O module phase all with PLC
Even, the control instruction receiving PLC has completed corresponding action, and by corresponding status information feedback to PLC.Servo electricity simultaneously
Mechanical, electrical dynamic slide unit and laser range sensor can be connected into industrial computer by RS485 bus, and industrial computer can monitor the operation of each equipment
State, arranges and changes the control information of each controller, the position of such as operation, speed, step information etc. also dependent on needing
Parameter.
Pass through the PC/PPI cable connection of Siemens Company between industrial computer and PLC, can be very by OPC technology
Conveniently realize the data communication between the man-machine interface of industrial computer and PLC.Industrial computer reserves Ethernet interface, man-machine
Interface can be connected to remote sim IS system by EPA, is inquired about, downloaded and preserved the data messages such as order.
The photophore of photo-electric proximity switch detection sample and light-receiving device are fixed on mobile terminal detection by jaw 11 respectively
Plane 2 and fixing end detect the central axis of plane 1, lentamente make both close during detection, when proximity switch signal is detected
During change, it is automatically stopped the electronic slide unit of X-axis, and by accurately measuring the operating distance of this photo-electric proximity switch.This system
Firstly the need of carrying out to gentle centering before being detected, wherein, centering is completed by centering body, and flat and detection are then led to
Cross and flat testing agency is completed.
To flattening mechanism by U axle servomotor 4, V axle servomotor 6 and three settings triangular in shape laser ranging sensing
Device 5 is constituted, and monitoring system obtains mobile terminal by described three laser range sensors 5 and detects that plane 7 is flat with fixing end detection
The range information of three corresponding points on face 9, calculates inclination angle by the range information of three points, and then two detection planes judgements are
No parallel, if not parallel, mobile terminal adjusted by U axle servomotor 4 and V axle servomotor 6 and detects plane, until parallel.
Centering testing agency is made up of centering boss 10 and the electronic slide unit of three axles, the position of centering boss 10 and wherein
Individual laser range sensor 5 is corresponding, is adjusted solid by the electronic slide unit of Y-axis 13 in the electronic slide unit of three axles and the electronic slide unit of Z axis 12
During the detection plan-position of fixed end, if the position of described laser range sensor 5 is overlapped with the position of centering boss 10, it detects
Range information can produce mutation, then judge that fixing end detects that the center overlapping of axles of plane, Ke Yitong are detected in plane and mobile terminal
Cross the detection that the electronic slide unit of X-axis 14 carries out photo-electric proximity switch operating distance.The translational speed of the electronic slide unit of this X-axis 14 can
Adjust, its fast translational speed and the slowest translational speed are respectively 100mm/s and 1mm/s it is ensured that detects is quick and accurate.
The flow chart that Fig. 2 detects program for the present invention.Start the initialization of detecting system automatic log-on, initialization first
Two detection planes can be proceeded by automatically to parallel after finishing, then automatic after the distance two detection planes is detected is equal
Enter two detection plane automatic axial centerings, the position that fixing end detects plane is changed by Y-axis and the electronic slide unit of Z axis, when sharp
After ligh-ranging sensor detects the centering boss that fixing end detects in plane, then two detection plane centerings terminate, two such
Detection plane is achieved that plane is parallel and plane axial alignment overlaps.Then proximity switch type and detection project are selected, if
Put specific test parameters, you can starting operation distance test, when the electronic slide unit of X-axis starts to move, when proximity switch detects
Even 1m mobile device is out of service after testee, and records current distance and return in the man-machine interface of industrial computer.If 1m
In the range of this proximity switch be not detected by testee, then need to revise between mobile terminal detection platform and fixing end detection platform
Distance, and again to parallel and centering, retest operating distance.
The main task of the man-machine interface of industrial computer is to complete test parameters setting, test monitoring, the collection of real time data
With process and user management etc..Required according to intelligent checking system, man-machine interface has several function interfaces as follows：
(1) main monitoring interface：The main monitoring interface of display intelligent checking system man-machine interface, permissible under this monitoring interface
Complete test parameters setting, test type selects, and the real-time running state of real-time monitoring intelligent detecting system, by selecting each
Function button can achieve the manually and automatically detection of photo-electric proximity switch operating distance：
(2) SIMIS data downloads interface：Can be connected in EPA from WEB server SIMIS system by this interface
The test parameters information corresponding to product to be tested, automatic upload user log-on message, test period after off-test is obtained in system
With result of the test etc., online retrieving and the printing of form and warning message etc. can be realized simultaneously.
(3) input/output signal monitoring interface：This interface is mainly used to the input/output signal of monitor in real time PLC
Whether normal, represent the presence or absence of output signal with signal lamp state.By the monitor in real time to input/output signal for this interface, can
To be rapidly completed the fault diagnosis of system.This function only opens to system manager.
(4) log in administration interface：System has different operation grades, and different operation grades has different operating rights
Limit, prevents user from going beyond one's commission use, it is to avoid illegal operation.
(5) alert interface：When intelligent checking system operation exception breaks down, system can send sound and light alarm, simultaneously
Fault message can be shown on alert interface, and all of warning message is maintained in database.
(6) user aid interface：System provides online help function, including user operation handbook and system most common failure and
Safeguard.
Claims (3)
1. a kind of photo-electric proximity switch operating distance detecting system, this detecting system includes mobile terminal detection platform, fixing end
Detection platform and detection control module, mobile terminal detection platform is provided with mobile terminal detection plane, and fixing end detection platform sets
Fixing end detection plane, the photophore of detection sample and light-receiving device is had to be separately fixed at mobile terminal detection plane and fixing end detection
The central axis of plane are it is characterised in that described mobile terminal detection platform includes, to flattening mechanism, by this, flattening mechanism being adjusted
So as to parallel with fixing end detection plane, described fixing end detection platform is provided with centering testing agency to mobile terminal detection plane,
By this centering testing agency so that fixing end detects that the center overlapping of axles of plane is detected in plane and mobile terminal, and adjust fixation
The relative distance of plane is detected in end detection plane and mobile terminal, carries out operating distance detection, and described includes setting to flattening mechanism
Detect in plane in mobile terminal and detect that the U axle servomotor of control module connection, V axle servomotor and three are in triangle
The laser range sensor of shape setting, obtains mobile terminal by described three laser range sensors and detects that plane is examined with fixing end
Survey the range information of three points in plane, it is parallel that detection controls mould to judge whether according to range information, if not parallel, pass through U axle
Servomotor and V axle servomotor adjust mobile terminal detection plane, until parallel, described centering testing agency includes three axle electricity
Dynamic slide unit and centering boss, fixing end detection plane is fixed in fixing end detection platform by the electronic slide unit of three axles, to convexity
Platform is arranged in fixing end detection plane, and the described electronic slide unit of three axles includes the electronic slide unit of X-axis, the electronic slide unit of Y-axis and Z axis electricity
Dynamic slide unit, the described position of centering boss is corresponding with one of laser range sensor, when by the electronic slide unit of described Y-axis
When electronic slide unit adjusts fixing end detection plan-position with Z axis, if the position of described laser range sensor and centering boss
Position overlaps, the range information generation mutation that it detects, then judge that fixing end detection plane is detected in plane with mobile terminal
Heart overlapping of axles, the electronic slide unit of described X-axis is used for adjusting the relative distance that fixing end detects plane and mobile terminal detection plane, enters
Row operating distance detects.
2. a kind of photo-electric proximity switch operating distance detecting system according to claim 1 is it is characterised in that described
The translational speed of the electronic slide unit of X-axis is adjustable, and its fast translational speed and the slowest translational speed are respectively as 100mm/s and 1mm/s.
3. a kind of photo-electric proximity switch operating distance detecting system according to claim 1 is it is characterised in that described
Detection control module includes PLC and connected industrial computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310157439.0A CN104122498B (en) | 2013-04-28 | 2013-04-28 | Photoelectric approach switch motion distance detection system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310157439.0A CN104122498B (en) | 2013-04-28 | 2013-04-28 | Photoelectric approach switch motion distance detection system |
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| CN104122498A CN104122498A (en) | 2014-10-29 |
| CN104122498B true CN104122498B (en) | 2017-02-08 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105301487A (en) * | 2015-10-30 | 2016-02-03 | 苏州优康通信设备有限公司 | Photoelectric switch action distance detection system |
| CN105652192A (en) * | 2015-12-31 | 2016-06-08 | 北京金风科创风电设备有限公司 | Detection method, device and system of proximity switch |
| CN106324493A (en) * | 2016-08-25 | 2017-01-11 | 康力电梯股份有限公司 | Photoelectric switch and proximity switch service life test instrument |
| CN108008293B (en) * | 2017-11-30 | 2019-11-12 | 深圳市天工机械制造技术开发有限公司 | Close to switch test system |
| CN110109008B (en) * | 2019-04-19 | 2021-07-06 | 湖北三江航天万峰科技发展有限公司 | Proximity switch induction range testing device and method |
| CN111151897B (en) * | 2020-02-27 | 2022-03-11 | 济南邦德激光股份有限公司 | Horizontal adjusting mechanism of laser pipe cutting machine body and laser pipe cutting machine |
| CN113917325B (en) * | 2021-12-16 | 2022-05-06 | 山东天大清源信息科技有限公司 | Proximity switch detection device and detection method thereof |
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| CN201156075Y (en) * | 2008-02-21 | 2008-11-26 | 武汉钢铁(集团)公司 | Automatic detection instrument of photoelectric approach switch |
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