CN201913114U - Laser on-line thickness measuring device for moderately thick plates - Google Patents
Laser on-line thickness measuring device for moderately thick plates Download PDFInfo
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- CN201913114U CN201913114U CN201020683079XU CN201020683079U CN201913114U CN 201913114 U CN201913114 U CN 201913114U CN 201020683079X U CN201020683079X U CN 201020683079XU CN 201020683079 U CN201020683079 U CN 201020683079U CN 201913114 U CN201913114 U CN 201913114U
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Abstract
The utility model discloses a laser on-line thickness measuring device for moderately thick plates, which comprises a measuring cabinet (2), a laser (10), a camera (11), a door type air-conditioner (9) and an industrial personal computer (20), wherein the measuring cabinet (1) has heat insulation, refrigeration and dust prevention functions, the laser (10) and the camera (11) are mounted on an inner partition of the measuring cabinet, the door type air-conditioner (9) is mounted on a rear door of the measuring cabinet and provided with a remote induction control circuit, the measuring cabinet is provided with a laser window and a camera shooting window, both the laser window and the camera shooting window are provided with window doors capable of being opened and closed automatically, the industrial personal computer (20) is connected with the camera (11) by an Ethernet interface via a communication cable (19), and both the work state and a measuring result of the device are displayed on a display screen of the industrial personnel computer (20) at real time. The laser on-line thickness measuring device for moderately thick plates has advantages of fine practicality, safeness, reliability, zero radiation, high measurement precision and the like, and is particularly applicable to on-line plate thickness measurement for plates which are rolled and flattened on production lines of moderately thick plate mills.
Description
Technical field
The utility model relates to field of measuring technique, particularly a kind of cut deal laser thickness measurement online device.
Background technology
On modern Medium and Heavy Plate Rolling Production line,, require the steel plate thickness that enters planisher is carried out on-line measurement in order to guarantee device security.Noncontact real-time online measuring method commonly used has ray method and optical method on the at present domestic and international production line, adopting the advantage of ray method is quick contactless continuous measuring, precision is not subjected to testee spring, moving influence, error is very little, major defect is that ray can damage human body, and ray is contaminated environment also.Laser optical method is to human body and environmental nonpollution, but because Medium and Heavy Plate Rolling scene, the measured workpiece high temperature heat radiation is strong, ambient dust is seriously polluted, electronic devices such as the laser instrument that is used to measure, video camera very easily are interfered and damage, in order to improve the certainty of measurement of whole system, guarantee the permanently effective work of electronic device, the spy has carried out the utility model research-and-development activity.
Summary of the invention
Technical problem to be solved in the utility model is: a kind of cut deal laser thickness measurement online device is provided, and this device has the advantages that practicality is good, safe and reliable, radiationless and certainty of measurement is high.
The technical scheme that its technical problem that solves the utility model adopts is:
The cut deal laser thickness measurement online device that the utility model provides, this device comprise have heat insulation, refrigeration, the measurement cabinet of dust reduction capability, be contained in laser instrument, video camera on the inner interlayer of this measurement cabinet, be contained in the gate-type air-conditioning on this measurement cabinet back door, have long-range inductive control circuit, and industrial computer.This measurement cabinet is provided with laser window and shooting window, and two windows all are equipped with the window that can open and close automatically; Industrial computer is linked to each other with video camera by communication cable by Ethernet interface.The duty of this device and measurement result all are presented on the display screen of industrial computer in real time.
Described window is pneumatic window.
Two windows the bottom nozzle all is housed, this nozzle all links to each other with high-pressure air source by the tracheae that electric-air valve and ball valve are housed.
In the face of measuring workpieces one side the insulated water jacket is installed at the measurement cabinet, this insulated water jacket is communicated with cooling water circulation loop by pipeline.
Describedly have a long-range inductive control circuit, it is made up of induction of signal wireless launcher and induction of signal wireless receiver, this induction of signal wireless launcher is sensed to roll and is sent signal when plate arrives, by opening window automatically after the described induction of signal wireless receiver received signal, form air curtain by nozzle at window, open laser instrument, system enters the thickness measuring duty; Roll after the plate, automatically restore to original resting state.
Described industrial computer is equipped with the D/A card, can convert the measurement result of screen display the current signal of standard to by the D/A card, exports to system master PLC and controls.Industrial computer also can be uploaded to level controlling system by serial port communication line with measurement result.
The described level controlling system of going up is meant the master control industrial computer of controlling the associated production line action.
The utility model mainly contains following advantage compared with the prior art:
One. can improve the service life of laser instrument and video camera: can prevent the damage of adverse circumstances effectively to electronic component, assurance have steel plate by the time open measurement mechanism, after steel plate passes through, stop laser works, prolonged the service life of measuring element in the abominable site environment of steel plate high temperature heat radiation greatly.
They are two years old. can guarantee the safety of planisher: when the thickness of measured hot rolled steel plate (being called for short hot plate down) is d, measurement result is exported to the main control PLC of planisher, in main control PLC, compare with planisher open height h, if d〉h, produce sound caution quiescing worker and be fed forward hot plate, if d＜h can be fed forward hot plate, thereby guarantee the safety of planisher.
They are three years old. and the industrial computer that is placed in operating room carries out communication by Ethernet interface and video camera, and wiring is simple, has stronger antijamming capability.The acquisition camera picture signal is carried out data analysis and non-linear correction processing by the application software of exploitation, and result of calculation is presented on the Chinese man-machine interface, is convenient to workman's monitoring and operation on the planisher production line.
They are four years old. comprehensive utilization laser triangulation and optical imaging method principle, laser instrument tilts to impinge upon the side of measured cut deal, form " light belt ", behind the veiling glare beyond the mating plate filtering optical maser wavelength, image on the CCD target surface after filtration, like this through handling the measurement data precision height that obtains, easy for installation, through field experiment debugging, when measuring object thickness in 10～120 ㎜ scopes, measure error less than customer requirements ± 0.5 millimeter.
In a word, the utlity model has good, safe and reliable, the radiationless and certainty of measurement advantages of higher of practicality.
Description of drawings
Fig. 1 is a front view of the present utility model.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the A-A cutaway view of Fig. 1.
Fig. 4 is a measuring system control block diagram
Among the figure: 1. Board Under Test; 2. measurement cabinet; 3. insulated water jacket; 4. window; 4-1. laser window; 4-2. shooting window; 5. nozzle; 5-1. the first air curtain nozzle; 5-2. the second air curtain nozzle; 6. tracheae; 7. electric-air valve; 7-1. first electric-air valve; 7-2. second electric-air valve; 8. ball valve; 9. gate-type air-conditioning; 10. laser instrument; 11. video camera; 12. water pipe; 12-1. water inlet pipe; 12-2. outlet pipe; 13. foundation bolt; 14. window; 14-1. laser window; 14-2. shooting window; 15. cylinder; 15-1. first cylinder; 15-2. second cylinder; 16. blackboard; 17. adjustable shadow shield; 18. optical filter; 19. communication cable, 20. industrial computers; 21. induction of signal wireless launcher; 22. induction of signal wireless receiver.
The specific embodiment
The utility model relates to a kind of cut deal laser thickness measurement online device, is applicable on the heavy and medium plate mill production line, measures just carrying out online thickness of slab at rolling and smooth sheet material.This device comprises laser instrument, video camera, industrial computer and have heat insulation, refrigeration, the device body of function such as dustproof and have long-range inductive control circuit, can prevent the damage of adverse circumstances effectively to electronic component, assurance have steel plate by the time open measurement mechanism, after steel plate passes through, stop laser works, prolonged the service life of laser instrument in the abominable site environment of steel plate high temperature heat radiation greatly, the measurement thickness d of this measurement mechanism can be passed to level controlling system by serial communication by industrial computer, also be convertible into standard analog amount form and export to main control PLC, in main control PLC, compare with planisher open height h, if d〉h, produce sound caution quiescing worker and be fed forward hot plate, if d＜h can be fed forward hot plate, guaranteed the safety of planisher.
The utility model is described in further detail below in conjunction with embodiment and accompanying drawing.
The cut deal laser thickness measurement online device that the utility model provides, its apparatus structure and the block diagram of system be as shown in Figures 1 to 4: mainly form by measuring cabinet 2, gate-type air conditioner 9, laser instrument 10, video camera 11, blackboard 16, industrial computer 20 and having long-range inductive control circuit.
Described measurement cabinet 2 has functions such as heat insulation, dustproof, and its bottom is fixedly linked by foundation bolt 13 and ground pedestal; Its inner interlayer can be installed laser instrument 10 and video camera 11, and cabinet 2 is equipped with insulated water jacket 3 in the face of measuring workpieces one side, provides recirculated cooling water by pipeline 12.Window 4 comprises laser window 4-1 and shooting window 4-2, and they all are equipped with the window 14 that can open and close automatically, and this window is pneumatic window.Window 14 comprises laser window 14-1 and shooting window 14-2.Nozzle 5 all is equipped with in the bottom of laser window and shooting window, is respectively the first air curtain nozzle 5-1, the second air curtain nozzle 5-2, and described nozzle all links to each other with high-pressure air source by the tracheae 6 that electric-air valve 7 and ball valve 8 are housed.When window is opened, electric-air valve 7 actions, high pressure draught forms air curtain by nozzle 5 at window, prevents that the workpiece heat radiation from damaging laser instrument and gamma camera, and ball valve 8 can be regulated the size of air quantity.
Described gate-type air-conditioning 9 is a refrigeration machine, can adopt the product of Shaanxi Lei Bo company or other company, and it is installed on the back door of measuring cabinet 2, and the cold wind mouth of this refrigeration machine links to each other with perforate on measuring cabinet 2 back doors, and facing to conveying cold air in the cabinet.
Described laser instrument 10 is contained on the middle level dividing plate of measuring cabinet 2 inside by adjustable fixed mount, adjustable shadow shield 17 is equipped with in the light path front, block the laser beam of about 1/3rd spot diameters, can on the light belt of the side of Board Under Test 1, produce one clearly along the plain edge edge of thickness direction, as a benchmark that carries out THICKNESS CALCULATION.What in this example, laser instrument was selected for use is that wavelength is the green laser of 532nm.
Described video camera 11 is installed on the middle level dividing plate of measuring cabinet 2 inside by adjustable fixed mount, optical filter 18 is housed before the camera lens, its effect is: the veiling glare beyond the filtering laser itself, and the light belt that laser is formed can clearly image on the video camera CCD target surface; Video camera adopts netting twine to be connected with the industrial computer 20 in control room.Shooting window 14-2 is housed on the measurement cabinet 2 of video camera front, and its effect is heat insulation, dustproof.A distant place, video camera axis is equipped with blackboard 16, as the background of tested steel plate 1.In this example, what video camera was selected for use is GE1650 type industrial camera, resolution ratio 1600x1200 photo-sensitive cell 1 " CCD, pixel size 7.4 x 7.4 (um)
2, use kilomega network (Gigabit Ethernet) interface to connect computer, do not need special image pick-up card.Cable adopts common CAT5e netting twine, and is easy to make, with low cost, can grow distance transferring large number of data stream rapidly.
Described industrial computer 20 can adopt and grind magnificent industrial computer, it carries out communication by Ethernet interface and video camera 11, the acquisition camera picture signal, and carry out data analysis and non-linear correction processing, calculate the actual (real) thickness of Board Under Test 1 and be presented at Chinese and control on the interface; This industrial computer also disposes D/A analog output interface circuit card, survey steel plate thickness signal can be converted to analog value and be transported in the PLC system that controls milling train production, finishes the adjusting of related data on the production line.
Describedly have long-range inductive control circuit and form by induction of signal wireless launcher 21 and induction of signal wireless receiver 22, described transmitter with on-the-spot thermometal sense switch obtain steel plate by signal with transmitting wirelessly away, receive by described receiver, and control line related energising, pneumatic operated valve is opened, make the laser instrument and the video camera that are in resting state enter the thickness measuring duty, after surveying work was finished, system reentered resting state.
The cut deal laser thickness measurement online device that the utility model provides is contained in that to be used for the smooth powerful straightener of steel plate (following abbreviation planisher) preceding, and its measuring principle is as follows:
These data d delivers in the main control PLC of production line with the form of electric current output by the D/A conversion module in the industrial computer 20, makes it to compare with the open height h of planisher, if d〉h, d＜h produces sound caution quiescing worker and is fed forward hot rolled plate, if can be fed forward hot rolled plate.The experiment show make illuminated laser spot apart from 1 ~ 2 meter of steel plate front end have better, stable measuring accuracy.
The effect of induction of signal wireless launcher 21 is to send steel plate arrival signal when being installed in after detector on the production line is activated by the hot rolled plate of process, after induction of signal wireless receiver 22 received signals, opens laser instrument 10; And do not have when rolling plate, close light source, also work when nothing is rolled plate to avoid laser instrument, increase the service life.
As rolling plate, show steel plate thickness on the display screen of industrial computer in real time through out-of-date; Except main control PLC was judged automatically, operating personnel also can compare with current planisher opening setting height h according to the measurement data that observes, and judged whether steel plate being imported planisher.Do not roll plate through out-of-date if having, computer screen shows " no steel plate " printed words.
The course of work of the present utility model is as follows:
Referring to Fig. 4, when tested steel plate 1 process induction of signal wireless launcher 21 places, this transmitter obtains steel plate with on-the-spot thermometal sense switch and sends with radio wave by signal, receive by induction of signal wireless receiver 22, the circuit of measuring in the cabinet 2 begins to change the thickness measuring duty into by original resting state: the power supply of at first connecting laser instrument 10, electric-air valve 7, cylinder 15 is opened the window on the window 4 14, high pressure draught forms air curtain by nozzle 5 at window 4 places simultaneously, guarantees that electronic component is not damaged by the workpiece heat radiation in the cabinet.When steel plate passed through measurement zone, the industrial computer screen refreshed the steel plate thickness data that is measured with the frequency of regulation, for operating personnel's monitoring, exported to main control PLC by the D/A transition card of industrial computer simultaneously and relatively controlled automatically; When Board Under Test 1 left induction of signal wireless launcher 21 places, circuit is orderly close-down window 14 and the power supply that turn-offs laser instrument 10 in accordance with regulations, and nozzle 5 stops jet, and device returns to resting state again.
Cooling water in the insulated water jacket 3 that cabinet 2 has self is communicated with the circulation network of rivers, workshop by water pipe 12, wherein, intake by water inlet pipe 12-1, by outlet pipe 12-2 water outlet, uninterrupted throughout the year circulation continuously, gate-type air-conditioning 9 is in temperature automatically controlled duty, remains in the prescribed limit for a long time to guarantee laser instrument 10, video camera 11 environment temperatures of living in.
The first electric-air valve 7-1 is the switch of control nozzle 5 ejection air curtains among Fig. 3, and the first electric-air valve 7-1 gets electric, connects source of the gas, and nozzle 5 begins to spray air curtain, and source of the gas is turn-offed in first electric-air valve 7-1 outage, stops jet; The second electric-air valve 7-2 is the switch of control cylinder 15 actions, and the second electric-air valve 7-2 gets electric, and cylinder 15 withdrawals drive window 14 and open, second electric-air valve 7-2 outage, and cylinder 15 stretches out, and drives window 14 and closes.
Claims (7)
1. cut deal laser thickness measurement online device, it is characterized in that this device comprise have heat insulation, refrigeration, the measurement cabinet (2) of dust reduction capability, be contained in laser instrument (10), video camera (11) on the inner interlayer of this measurement cabinet, be contained in the gate-type air-conditioning (9) on this measurement cabinet back door, have long-range inductive control circuit, and industrial computer (20); This measurement cabinet is provided with laser window and shooting window, and two windows all are equipped with the window that can open and close automatically; Industrial computer (20) is linked to each other with video camera (11) by communication cable (19) by Ethernet interface; The duty of this device and measurement result all are presented on the display screen of industrial computer (20) in real time.
2. cut deal laser thickness measurement online device as claimed in claim 1 is characterized in that window is pneumatic window.
3. cut deal laser thickness measurement online device as claimed in claim 1, it is characterized in that two windows the bottom nozzle (5) all is housed; Described nozzle all links to each other with high-pressure air source by the tracheae (6) that electric-air valve (7) and ball valve (8) are housed.
4. cut deal laser thickness measurement online device as claimed in claim 1 is characterized in that measuring cabinet (2) and in the face of measuring workpieces one side insulated water jacket (3) is installed, and this insulated water jacket is communicated with cooling water circulation loop by pipeline (12).
5. cut deal laser thickness measurement online device as claimed in claim 1, it is characterized in that describedly having long-range inductive control circuit and forming by induction of signal wireless launcher (21) and induction of signal wireless receiver (22), this transmitters sense is sent signal to rolling when plate arrives, by opening window automatically after the described receiver received signal, form air curtain by nozzle at window, open laser instrument (10), system enters the thickness measuring duty; Roll after the plate, automatically restore to original resting state.
6. cut deal laser thickness measurement online device as claimed in claim 1, it is characterized in that industrial computer (20) is equipped with the D/A card, it converts the measurement result of screen display to the current signal of standard by the D/A card, export to system master PLC and control, perhaps industrial computer (20) is uploaded to level controlling system with measurement result by serial port communication line.
7. cut deal laser thickness measurement online device as claimed in claim 6 is characterized in that the described master control industrial computer that level controlling system is meant the action of control associated production line of going up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020683079XU CN201913114U (en) | 2010-12-28 | 2010-12-28 | Laser on-line thickness measuring device for moderately thick plates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020683079XU CN201913114U (en) | 2010-12-28 | 2010-12-28 | Laser on-line thickness measuring device for moderately thick plates |
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| Publication Number | Publication Date |
|---|---|
| CN201913114U true CN201913114U (en) | 2011-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020683079XU Expired - Fee Related CN201913114U (en) | 2010-12-28 | 2010-12-28 | Laser on-line thickness measuring device for moderately thick plates |
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| Country | Link |
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| CN (1) | CN201913114U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103307991A (en) * | 2013-06-09 | 2013-09-18 | 上海湃通机电设备有限公司 | Optical measuring mechanism of non-contact rotary cylindrical product diameter measuring device |
| CN106441119A (en) * | 2016-06-30 | 2017-02-22 | 山东省科学院激光研究所 | Thermal-state steel tube thickness online detection device |
| CN110132155A (en) * | 2019-06-20 | 2019-08-16 | 遵义医科大学 | A kind of bark crack degree and roughness measuring instrument |
| CN110160449A (en) * | 2018-02-14 | 2019-08-23 | 三星钻石工业股份有限公司 | The thickness check device and method of ripple mark |
| CN110375681A (en) * | 2019-07-15 | 2019-10-25 | 中国计量科学研究院 | The normal pressures large diameter pipeline area of section on-line calibration device such as a kind of flue or chimney |
-
2010
- 2010-12-28 CN CN201020683079XU patent/CN201913114U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103307991A (en) * | 2013-06-09 | 2013-09-18 | 上海湃通机电设备有限公司 | Optical measuring mechanism of non-contact rotary cylindrical product diameter measuring device |
| CN106441119A (en) * | 2016-06-30 | 2017-02-22 | 山东省科学院激光研究所 | Thermal-state steel tube thickness online detection device |
| CN110160449A (en) * | 2018-02-14 | 2019-08-23 | 三星钻石工业股份有限公司 | The thickness check device and method of ripple mark |
| CN110132155A (en) * | 2019-06-20 | 2019-08-16 | 遵义医科大学 | A kind of bark crack degree and roughness measuring instrument |
| CN110375681A (en) * | 2019-07-15 | 2019-10-25 | 中国计量科学研究院 | The normal pressures large diameter pipeline area of section on-line calibration device such as a kind of flue or chimney |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110803 Termination date: 20181228 |
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| CF01 | Termination of patent right due to non-payment of annual fee |