CN106370098B - High power laser coke raise-position is set and the optical mode method of inspection and device - Google Patents
High power laser coke raise-position is set and the optical mode method of inspection and device Download PDFInfo
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- CN106370098B CN106370098B CN201510442254.3A CN201510442254A CN106370098B CN 106370098 B CN106370098 B CN 106370098B CN 201510442254 A CN201510442254 A CN 201510442254A CN 106370098 B CN106370098 B CN 106370098B
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Abstract
The present invention relates to laser-beam welding machine field more particularly to the laser head methods of inspection and device of a kind of laser-beam welding machine.A kind of high power laser coke raise-position set with the optical mode method of inspection, by laser beat on label paper this during so that label paper is in moisture state.A kind of high power laser coke raise-position is set and optical mode verifying attachment, including mounting bracket, transmission mechanism, driving device and test paper platform；Test paper platform is driven by the driving device to constitute prismatic pair with mounting bracket, and label paper is fixed on test paper platform by fixing clamp follows test paper platform to move；It is additionally provided with water atomizing nozzle above test paper platform, is provided with flow valve and constant pressure pump on the inlet pipeline of water atomizing nozzle.The present invention makes label paper keep certain water content in checkout procedure to limit laser beam perforation burning sprawling phenomenon, improve the burnt accuracy for rising pore-forming, the accuracy of high power laser inspection has been effectively ensured, and the workload of inspection can have been shorten to more than ten minutes, has greatly improved checkability.
Description
Technical field
The present invention relates to laser-beam welding machine field more particularly to the laser head methods of inspection and dress of a kind of laser-beam welding machine
It sets.
Background technique
Cold rolling acid tandem rolling laser welder, is mainly used for hot rolling of the throat thickness in 2mm ~ 5mm, hardness HR30Te 42 ~ 95
Strip, welding laser is the high-power laser beam of 8 multikilowatts, fusion weld is carried out to strip after over-focusing, every time to sharp
Optical device in light optical path will set laser coke raise-position after being safeguarded and test, and routine uses 75 ~ 100% power
The laser of excitation 10ms is beaten on label paper, is set from negative burnt raise-position and is got to positive coke raise-position and set, the hole beaten by laser on label paper
Diameter determine centre-height position i.e. waist that laser focuses, so that it is determined that suitable welding laser coke liter, together
When the circularity in hole beaten from laser judge the mode situation of laser.But stability is poor during practical laser beats burnt liter,
Laser is shot through in label paper pore forming process the accuracy for having burning sprawling phenomena impair pore-forming；In label paper in the case of identical parameters
On the focus hole got it is often not identical, the drying of deviation, weather that the inhomogeneities of test paper material causes burning to spread with
Moist, test paper storage humidity condition all influences combustion case, causes laser to beat burnt liter operation accuracy relatively low, for passing through
The circularity of focus hole is not also high come the degree of reliability for judging zlasing mode, the validity of laser maintenance is influenced, to laser source
Stable operation and the reliable welded bands of laser carry out very big influence.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of high power laser coke raise-position set with the optical mode method of inspection and
Device, this method and device are mainly used for the high precision inspection that the laser coke of cold rolling large laser welding machine rises, in checkout procedure
Laser beam perforation burning sprawling phenomenon is limited with making label paper keep certain water content by atomizer, is improved coke and is risen pore-forming
The accuracy of high power laser inspection has been effectively ensured in accuracy, has given for the stable operation and reliable welding of laser source
The guarantee of power.
The present invention is implemented as follows: a kind of high power laser coke raise-position set with the optical mode method of inspection, beaten by laser
Label paper is set to be in moisture state during this on label paper.
The water content of the label paper of the moisture state is 1 ~ 5mg/cm2。
A kind of high power laser coke raise-position is set and optical mode verifying attachment, comprising:
One mounting bracket；
Transmission mechanism in mounting bracket is set；
Drive the driving device of transmission mechanism movement；
The test paper platform being mounted on transmission mechanism；
Test paper platform is driven by the driving device to constitute prismatic pair with mounting bracket, and label paper is fixed on by fixing clamp
Test paper platform is followed to move on test paper platform；Water atomizing nozzle, the atomized water spray are additionally provided with above the test paper platform
Flow valve and constant pressure pump are provided on the inlet pipeline of head.
The transmission mechanism is a pair of of driven roller, and the test paper platform is erected in a pair of of driven roller.
The driving device is air motor, the direct stationary phase in the axle center of the output shaft of the air motor and a driven roller
Even, air source control valve is provided on the air inlet pipeline of the air motor.
The water atomizing nozzle is grating type combined sprinkler, the overlay area of the grating type combined sprinkler and label paper
Size matches.
High power laser coke raise-position of the present invention, which is set, is mainly used for cold rolling large laser welding machine with the optical mode method of inspection and device
Laser coke rise high precision inspection；Make label paper that certain water content be kept to limit with by atomizer in checkout procedure
Laser beam perforation burning sprawling phenomenon, improves the burnt accuracy for rising pore-forming, the accuracy of high power laser inspection has been effectively ensured；Separately
The present apparatus directly can integrally be placed into the position where laser head when external inspection, be moved with motor automatic traction label paper,
Man-computer cooperation operation is eliminated in operation process, improves the stability and safety for beating burnt liter process, entire operation process
Workload from several hours shorten to more than ten minutes, greatly improves checkability.
Detailed description of the invention
Fig. 1 is that arrangement schematic diagram when testing with optical mode verifying attachment is set in high power laser coke raise-position of the present invention；
Fig. 2 is that the structural schematic diagram with optical mode verifying attachment is set in high power laser coke raise-position of the present invention；
Fig. 3 is test paper drying mechanism structural schematic diagram used when examining in the embodiment of the present invention；
Fig. 4 is test paper structure of the detecting device schematic diagram used when examining in the embodiment of the present invention.
In figure: 1 laser head, 2 laser, 31 laser welder directive wheels, 32 mounting brackets, 33 transmission mechanisms, 34 driving devices,
35 test paper platforms, 36 fixing clamps, 37 air source control valves, 4 label papers, 51 water atomizing nozzles, 52 flow valves, 53 constant pressure pumps, 61 electricity
Heating platform, 62 uniform heated-air dryings blowing units, 63 control panels, 71 test paper detection platforms, 72LED lamp bar, 73 micro- are put
Big unit, 74 roundness measuring equipments.
Specific embodiment
Present invention will be further explained below with reference to specific examples.It should be understood that these embodiments are merely to illustrate the present invention
Rather than it limits the scope of the invention.In addition, it should also be understood that, after having read the content of the invention stated, those skilled in the art
Member can make various changes or modifications the present invention, and such equivalent forms equally fall within the application the appended claims and limited
Range.
Embodiment 1
As shown in Figure 1, 2, a kind of high power laser coke raise-position is set is placed on when in use with optical mode verifying attachment, the device
On a pair of of laser welder directive wheel 31 of 1 lower section of laser head, the laser 2 that this position laser head 1 is got can just pass through label
Paper 4 realizes that, in X -ray inspection X, which includes mounting bracket 32, transmission mechanism 33, driving mechanism 34 and test paper platform 35, described
It is disposed with fixing clamp 36 on test paper platform 35, clamps label paper 4 using fixing clamp 36；
In the present invention, transmission mechanism 33 is arranged in mounting bracket 32, and the driving device 34 drives transmission mechanism 33
Movement, the test paper platform 35 are mounted on transmission mechanism 33, and test paper platform 35 props up under the drive of driving device 34 with installation
Frame 32 constitutes prismatic pair, and label paper 4 follows test paper platform 35 to move on test paper platform 35；The top of the test paper platform 35 is also
It is provided with water atomizing nozzle 51, flow valve 52 and constant pressure pump 53 are provided on the inlet pipeline of the water atomizing nozzle 51 to control
The amount of water sprayed of atomized water.
In the present embodiment, in order to guarantee that label paper 4 can be moistened uniformly, the water atomizing nozzle 51 is grid
The overlay area of formula combined sprinkler, the grating type combined sprinkler is matched with the size of label paper 4.
In order to simplify drive mechanism, and it can guarantee the controllable of 4 moving distance of label paper, in the present embodiment, the transmission
Mechanism 33 is a pair of of driven roller, and the test paper platform 35 is erected in a pair of of driven roller, and the driving device 34 is air motor,
The output shaft of the air motor and the axle center of a driven roller are directly fixedly linked, and are arranged on the air inlet pipeline of the air motor
There is air source control valve 37.
In the present invention when testing, a kind of high power laser coke raise-position set with the optical mode method of inspection, beaten by laser
On label paper 4 this during so that label paper 4 is in moisture state；The wet degree of label paper 4 and the parameter of label paper 4,
Detection project, laser power are related, it is generally the case that in the present invention the water content of the label paper of the moisture state be 1 ~
5mg/cm2。
Label paper 4 in the present embodiment is black rich JunKai ornament materials Co., Ltd, and China fir JK0002 impregnated paper works as use
When method of the invention carries out high power laser coke liter location test, label paper 4 uses 0.2 ~ 0.4mm impregnated paper, big when carrying out
When power laser optical mode is examined, label paper 4 uses 0.1 ~ 0.3mm impregnated paper.
Test is humidified by spraying with paper and control unit mainly includes equally distributed atomization grid spray head, water cell, pressure
Power controls constant pressure pump, flow controlling unit；The wet data control table of label paper 4 when the following table 1 is specific implementation, in the present embodiment
In, so that label paper 4 is in moisture state using water atomizing nozzle 51:
| Inspection project | Laser sets power (%) | Laser trigger time | It is atomized water | Label paper unit area water content |
| Burnt raise-position is set | 6000W(75%) | 15ms | 0.15ml | 2.34mg/cm2 |
| Burnt raise-position is set | 8000W(100%) | 10ms | 0.2ml | 3.12mg/cm2 |
| Laser optical mode | 6000W (75%) | 20ms | 0.1ml | 1.56mg/cm2 |
| Laser optical mode | 8000W(100%) | 15ms | 0.12ml | 1.87mg/cm2 |
Table 1 is laser parameter table corresponding with atomization water
It is set using high power laser coke raise-position of the present invention as follows with the detailed process of the optical mode method of inspection:
1) label paper 4 is placed into test paper platform 35 and is clamped with fixing clamp 36；
2) water atomizing nozzle 51 is opened, and amount of water sprayed is controlled by flow valve 52 and constant pressure pump 53, makes the aqueous of label paper 4
Amount reaches setting value；
3) mounting bracket 32 is placed into a pair of of laser welder directive wheel 31, and label paper 4 is located under laser head 1
Side；
4) set laser power and laser trigger time, usual laser power settings in standard value 75% ~ 100%, laser
Triggered time usually chooses 10ms ~ 20ms, beats laser 10 ~ 15 times according to setup parameter, sets from negative burnt raise-position to zero burnt raise-position and sets
Positive burnt raise-position is got to again to set, and is beaten laser head after laser obtains Jiao Shengdian on label paper 4 every time and is promoted certain altitude, while label
Paper 4 moves a distance；
5) label paper 4 that will accomplish fluently burnt liter point, which is placed on test paper drying mechanism as shown in Figure 3, carries out drying and processing；It should
Drying equipment includes electric heating platform 61 and uniform heated-air drying blowing unit 62, and label paper 4 is placed on electric heating platform 61,
Uniform heated-air drying blowing unit 62 is located at the top of label paper 4, the heating power of electric heating platform 61 and time and hot wind
The hot blast temperature and flow of dry blowing unit 62 all pass through control panel 63 and are set；
6) it is placed into again after label paper 4 is oven-dried in test paper detection device as shown in Figure 4；The test paper detection device packet
Test paper detection platform 71 is included, is provided with LED light bar 72 in the test paper detection platform 71, and is configured with micro- 73 He of amplifying unit
Roundness measuring equipment 74；
Coke rises location test: detecting minimum burnt liter point with the micro- amplifying unit 73 that size is shown, the minimum is burnt to be risen
The corresponding burnt raise-position of point, which is set, rises waist as the laser coke detected；The laser that subsequent welding parameter is just obtained according to the detection
Coke rises waist and carrys out alignment settings.
Laser light modulo n check: when by roundness measuring equipment 74 detect it is burnt rise a point deviation from circular from, i.e., it is burnt rise point maximum radius with
The difference of least radius when being greater than 10%, then carries out assisting the burnt paper optical mode test for rising and examining.
7) paper optical mode is tested: laser Machining head is maintained at open position, and laser parameter is arranged according to the mode for beating paper optical mode,
Remaining step is with 1) ~ 6).Since paper optical mode is the laser beam of out-focus, the hole diameter obtained on label paper 4 is generally
20mm or so illustrates that laser optical path needs to carry out full laser optical path and mode there are deviation if deviation from circular from is greater than 10%
Face is calibrated after deviation from circular from is less than 10%, then label paper 4 beats coke again and rises the burnt liter location test of point progress.
It includes lower part electric heating platform, the uniform heated-air drying unit in top that test paper, which dries component, and heating power and time set
It is fixed, hot blast temperature and flow set；
Test paper detection platform includes two sides to the micro- amplifying unit penetrating LED micro lighting light bar, showing with size, circularity
Detector.
Claims (6)
1. a kind of high power laser coke raise-position is set and optical mode verifying attachment, characterized in that include:
One mounting bracket (32)；
The transmission mechanism (33) being arranged on mounting bracket (32)；
Drive the driving device (34) of transmission mechanism (33) movement；
The test paper platform (35) being mounted on transmission mechanism (33)；
Test paper platform (35) constitutes prismatic pair with mounting bracket (32) under the drive of driving device (34), and label paper (4) passes through
Fixing clamp (36), which is fixed on test paper platform (35), follows test paper platform (35) to move；The top of the test paper platform (35) is also set
It is equipped with water atomizing nozzle (51), is provided with flow valve (52) and constant pressure pump on the inlet pipeline of the water atomizing nozzle (51)
(53)。
2. high power laser coke raise-position as described in claim 1 set with optical mode verifying attachment, it is characterized in that: the transmission mechanism
It (33) is a pair of of driven roller, the test paper platform (35) is erected in a pair of of driven roller.
3. high power laser coke raise-position as claimed in claim 2 set with optical mode verifying attachment, it is characterized in that: the driving device
It (34) is air motor, the output shaft of the air motor and the axle center of a driven roller are directly fixedly linked, the air motor
Air inlet pipeline on be provided with air source control valve (37).
4. as the described in any item high power laser coke raise-positions of claim 1 ~ 3 set with optical mode verifying attachment, it is characterized in that: institute
Stating water atomizing nozzle (51) is grating type combined sprinkler, the overlay area of the grating type combined sprinkler and the ruler of label paper (4)
It is very little to match.
5. a kind of high power laser coke liter set using high power laser coke raise-position described in claim 1 with optical mode verifying attachment
Position and the optical mode method of inspection, it is characterized in that: by laser beat on label paper this during so that label paper is in wet shape
State.
6. high power laser coke raise-position as claimed in claim 5 set with the optical mode method of inspection, it is characterized in that: the moisture state
Label paper water content be 1 ~ 5mg/cm2。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510442254.3A CN106370098B (en) | 2015-07-24 | 2015-07-24 | High power laser coke raise-position is set and the optical mode method of inspection and device |
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|---|---|---|---|
| CN201510442254.3A CN106370098B (en) | 2015-07-24 | 2015-07-24 | High power laser coke raise-position is set and the optical mode method of inspection and device |
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| CN106370098A CN106370098A (en) | 2017-02-01 |
| CN106370098B true CN106370098B (en) | 2019-02-05 |
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| CN112014073B (en) * | 2020-09-03 | 2022-08-23 | 湖南镭目科技有限公司 | Laser detection device and laser detection method for alignment of high-energy laser beam |
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|---|---|---|---|---|
| CN101422848A (en) * | 2008-11-21 | 2009-05-06 | 陈伟良 | Distance-measurement focusing method applied for laser cutting processing |
| WO2013089038A1 (en) * | 2011-12-15 | 2013-06-20 | Ｊｆｅスチール株式会社 | Laser welding position-detecting device and welding position-detecting method |
| CN104165596A (en) * | 2014-09-02 | 2014-11-26 | 南京中科神光科技有限公司 | Method and system for measuring defocusing amount |
| CN204228119U (en) * | 2014-05-29 | 2015-03-25 | 苏州大学张家港工业技术研究院 | A kind of laser melting coating molten bath defocusing amount measurement mechanism |
| CN204470747U (en) * | 2015-03-10 | 2015-07-15 | 镭射谷科技(深圳)有限公司 | Camera laser tin soldering equipment |
-
2015
- 2015-07-24 CN CN201510442254.3A patent/CN106370098B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101422848A (en) * | 2008-11-21 | 2009-05-06 | 陈伟良 | Distance-measurement focusing method applied for laser cutting processing |
| WO2013089038A1 (en) * | 2011-12-15 | 2013-06-20 | Ｊｆｅスチール株式会社 | Laser welding position-detecting device and welding position-detecting method |
| CN204228119U (en) * | 2014-05-29 | 2015-03-25 | 苏州大学张家港工业技术研究院 | A kind of laser melting coating molten bath defocusing amount measurement mechanism |
| CN104165596A (en) * | 2014-09-02 | 2014-11-26 | 南京中科神光科技有限公司 | Method and system for measuring defocusing amount |
| CN204470747U (en) * | 2015-03-10 | 2015-07-15 | 镭射谷科技(深圳)有限公司 | Camera laser tin soldering equipment |
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