CN105834581A - Laser optical path correcting device and method for CO2 laser cutting carver - Google Patents
Laser optical path correcting device and method for CO2 laser cutting carver Download PDFInfo
- Publication number
- CN105834581A CN105834581A CN201610407396.0A CN201610407396A CN105834581A CN 105834581 A CN105834581 A CN 105834581A CN 201610407396 A CN201610407396 A CN 201610407396A CN 105834581 A CN105834581 A CN 105834581A
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- laser
- optical path
- motor
- central processing
- processing unit
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/04—Automatically aligning, aiming or focusing the laser beam, e.g. using the back-scattered light
- B23K26/046—Automatically focusing the laser beam
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/361—Removing material for deburring or mechanical trimming
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention discloses a laser optical path correcting device and a method for a CO2 laser cutting carver. The device comprises a laser emitting head, and further comprises a connector and an adjusting shaft; the connector is fixedly connected with a CO2 laser tube; the adjusting shaft is mounted on the connector; and a laser reflecting head is connected with the adjusting shaft, and is driven by the adjusting shaft to move. The device further comprises a central processing unit, a positioning module and a sensor; the sensor is used for recording a laser position on a reflecting mirror and converting the laser position to an electric signal; the positioning module converts an electric signal acquired by the sensor to an analog quantity to transmit to the central processing unit; and the central processing unit processes the analog quantity to control movement of the adjusting shaft so as to drive the laser emitting head to move. The device can quickly and accurately adjust a laser optical path, improves the working precision and safety of the CO2 laser cutting carver, realizes automation of the visual light adjusting process, is wide in application, and can be applied to all CO2 laser equipment.
Description
Technical field
The present invention relates to laser-adjusting field, particularly relate to a kind of laser optical path correcting unit on CO2 laser cutting engraving machine and method.
Background technology
CO2Laser cutting engraving machine purposes in terms of the processing of material is extremely wide.CO2Laser cutting engraving machine, material can be cut, carve and mark, be widely used in electronic devices and components, integrated circuit (IC), electrical engineering and electric apparatus, mobile communication, hardware, tool fitting, precision instruments, glasses clock and watch, jewelry ornaments, auto parts machinery, plastic press key, building materials, PVC.CO2Laser cutting engraving machine has the advantages such as machining accuracy high, speed is fast, otch is smooth, easy to use, low cost, Environmental Safety.
At CO2During laser cutting engraving machine uses, it is often necessary to its laser optical path is corrected.Such as, producer is at production and assembly CO2During laser cutting engraving machine, it is necessary to CO2Laser cutting engraving machine carries out light path correction, and the quality of guarantee product reaches requirement；It addition, CO2It is generally the service life of laser tube 2000-3000 hour, works as CO2When laser tube reaches service life, the CO that more renew2Laser tube, at this time, it may be necessary to CO2Laser cutting engraving machine laser optical path re-calibrates；Finally, in routine duties, often illuminator or CO are made due to careless manipulation2Laser tube loosens, thus causes laser optical path to offset.CO2After the laser optical path skew of laser cutting engraving machine, CO will be had a strong impact on2The normal work of laser cutting engraving machine so that machining accuracy reduces, and depth of cut is uneven, so to CO2The correction of laser cutting engraving machine laser optical path is extremely necessary.
For current CO2From the point of view of laser cutting engraving machine, the regulation of its light path is relatively complicated, and the method for employing is generally used for multiple times CO2Laser fixed fire light modulation printing paper, the most manually regulation illuminator makes crossbeam move its CO in different directions2Laser fixed fire speckle is all in same position, and then regulation laser optical path.This method tool bears the character of much blindness, because CO2The laser that laser tube sends is black light, does not has standard point to be referred to during regulation, so cannot be to CO2Laser optical path quickly corrects, and even cannot successfully correct light path, and the equipment that has a strong impact on uses.And CO2Its laser power of the laser that laser tube sends is big, if mirror position is the most right, laser deviation during fixed fire, point is mapped to people and easily causes accidental injury, and point is mapped to thing and easily causes damage.
Summary of the invention
The technical problem to be solved in the present invention is susceptible to skew when being for the positive laser tube of prior art lieutenant colonel, and the defect that correction difficulty is big, there is provided one can precise calibration laser optical path, and the laser optical path correcting unit on CO2 laser cutting engraving machine easy to use, safe and method.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of for CO2Laser optical path correcting unit on laser cutting engraving machine, including laser beam emitting head, this device also includes adapter and regulation axle, adapter and CO2Laser tube is fixing to be connected, and regulation axle is installed on the connectors；Laser-bounce head is connected with regulation axle, and laser-bounce head moves under the drive of regulation axle；
This device also includes central processing unit, locating module and sensor, sensor is for recording the laser position on illuminator and being converted into the signal of telecommunication, locating module by sensor acquisition to the signal of telecommunication be converted to analog quantity and flow to central processing unit, central processing unit controls to adjust axle after processing analog quantity and moves, and then drives laser beam emitting head to move.
Further, assembly of the invention also includes motor, motor driver and motor control module；Motor is connected with regulation axle, and motor control module one end is connected with motor by motor driver, and the other end is connected with central processing unit.
Further, the regulation axle of the present invention includes X-direction regulation axle and Y-direction regulation axle.
Further, the front-end and back-end of the adapter of the present invention are provided with multiple screw hole, are fixed by fixed screw.
Further, the motor of the present invention is servomotor or motor.
The present invention provides a kind of for CO2Laser optical path bearing calibration on laser cutting engraving machine, comprises the following steps:
S1, sensor obtain the LASER SPECKLE position of illuminator, are converted into the signal of telecommunication, and locating module converts electrical signals to analog quantity, and this analog quantity is sent to central processing unit；
S2, central processing unit are analyzed processing according to the signal received, and send control instruction to motor driver, and then control electric machine rotation, and drive regulation axle to move；
S3, when LASER SPECKLE position is accurate, complete regulation process.
The beneficial effect comprise that: the laser optical path correcting unit on CO2 laser cutting engraving machine of the present invention, by sensor acquisition LASER SPECKLE position, central processing unit can carry out intellectual analysis to it, and then control and regulation axle drives laser beam emitting head to move, reach to regulate the purpose of laser optical path；The present invention may be used for various CO2In laser equipment, it is possible to realize CO2Quick, accurate, the safety of laser optical path adjust, for CO2The failture evacuation of laser equipment provides basis；And apparatus structure is simple, it is achieved convenient, it is possible to avoid the unsafe factor that manual adjustment causes, improve the work efficiency of regulation.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 be the embodiment of the present invention for CO2The plan structure schematic diagram of the laser optical path correcting unit on laser cutting engraving machine；
Fig. 2 be the embodiment of the present invention for CO2The side-looking structural representation of the laser optical path correcting unit on laser cutting engraving machine；
Fig. 3 be the embodiment of the present invention for CO2The principle schematic of the laser optical path correcting unit on laser cutting engraving machine；
Fig. 4 be the embodiment of the present invention for CO2The bearing calibration schematic diagram of the laser optical path correcting unit on laser cutting engraving machine；
Fig. 5 be the embodiment of the present invention for CO2Three kinds of situation schematic diagrams of the illuminator speckle of the laser optical path correcting unit on laser cutting engraving machine；
In figure, 1. adapter；2. generating laser；3. regulation axle；4. fixed screw；5. motor；6. motor driver；7. motor control module；8. central processing unit；9. locating module；10. sensor；11.CO2Laser tube；12. first illuminators；13. second illuminators；14. the 3rd illuminators；15. light holes；16. focus lamps；17. workpieces to be processed.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
As it is shown in figure 1, the embodiment of the present invention for CO2Laser optical path correcting unit on laser cutting engraving machine, including laser beam emitting head 2, this device also includes adapter 1 and regulation axle 3, adapter 1 and CO2Laser tube 11 is fixing to be connected, and regulation axle 3 is arranged on adapter 1；Laser-bounce 2 is connected with regulation axle 3, and laser-bounce 2 is moved under the drive of regulation axle 3；
This device also includes central processing unit 8, locating module 9 and sensor 10, sensor 10 is for recording the laser position on illuminator and being converted into the signal of telecommunication, the signal of telecommunication that sensor 10 collects is converted to analog quantity and flows to central processing unit 8 by locating module 9, central processing unit 8 controls to adjust axle 3 after processing analog quantity and moves, and then drives laser beam emitting head 2 to move.
As shown in Figures 2 and 3, this device also includes motor 5, motor driver 6 and motor control module 7；Motor 5 is connected with regulation axle 3, and motor control module 7 one end is connected with motor 5 by motor driver 6, and the other end is connected with central processing unit 8.
Regulation axle 3 includes X-direction regulation axle and Y-direction regulation axle.
The front-end and back-end of adapter 1 are provided with multiple screw hole, are fixed by fixed screw (4).
Motor 5 is servomotor or motor.
In another specific embodiment of the present invention, device includes adapter 1, generating laser 2, regulation axle 3, fixed screw 4, motor 5, motor driver 6, motor control module 7, central processing unit 8, locating module 9, sensor 10.Its front and back end, side of adapter 1 has a number of through hole, laser optical path correcting unit is fixed by the fixed screw 4 being installed on adapter 1 rear end screw hole, generating laser 2 is positioned at the front end of adapter 1, the entirety that can move respectively is collectively constituted along XY axle with the regulation axle 3 being installed on adapter 1 front end screw hole, the a set of intelligent regulating system being made up of motor 5, motor driver 6, motor control module 7, central processing unit 8, locating module 9 and sensor 10, can be according to CO2Laser and visible laser position difference on sensor 10 is analyzed, and regulates electric machine rotation, thus controls the position of generating laser, finally makes visible laser and CO2Laser link is completely superposed, thus reaches with visible ray for reference to regulation CO2The purpose of laser cutting engraving machine laser optical path.
Adapter 1 is a retaining element, and its material is metal or nonmetal, and all there are some screw holes front and back end.Generating laser 2 is positioned at the front end of adapter 1, its a length of 380-780nm of visible light wave launched.Regulation axle 3 be material be metal or nonmetallic screw mandrel, be installed in the screw hole of adapter 1 front end, constitute the entirety that can move at XY direction of principal axis with generating laser 2.The material of fixed screw 4 is metal or nonmetal, is installed at the screw hole of adapter 1 rear end, for apparatus of the present invention are fixed on CO2The CO of laser cutting engraving machine2Laser tube front end.
The embodiment of the present invention for CO2Laser optical path bearing calibration on laser cutting engraving machine, for realize the embodiment of the present invention for CO2Laser optical path correcting unit on laser cutting engraving machine, comprises the following steps:
S1, sensor obtain the LASER SPECKLE position of illuminator, are converted into the signal of telecommunication, and locating module converts electrical signals to analog quantity, and this analog quantity is sent to central processing unit；
S2, central processing unit are analyzed processing according to the signal received, and send control instruction to motor driver, and then control electric machine rotation, and drive regulation axle to move；
S3, when LASER SPECKLE position is accurate, complete regulation process.
In another specific embodiment of the present invention, the method includes: first sensor 10 is placed in CO2The front end of laser cutting engraving machine the first illuminator, uses CO2Laser fixed fire, now sensor 10 will record CO2Then apparatus of the present invention will be fixed on CO by the fixed screw 4 of adapter 1 rear end by the position of laser2Laser tube 11 front end, open generating laser power supply, visible laser is emitted onto on sensor 10, sensor 10 is recorded the position of visible laser and converts thereof into the signal of telecommunication and be transferred to locating module 9, the signal of telecommunication received is converted into analog quantity and flows to central processing unit 8 by locating module 9, central processing unit 8 processes data transfer instruction and rotates according to order-driven motor 5 to motor control module 7, motor control module 7.Generating laser 2 is promoted to move to its visible ray speckle and CO along x with y-axis2Laser fixed fire speckle coincides.Now generating laser 2 radiation of visible light path and former CO2Laser path is consistent.
Sensor is removed, above light modulation printing paper is sticked at the first illuminator 12, now the visible laser speckle of laser transmitter projects will appear on light modulation printing paper, regulate the screw at the first illuminator 12 rear, the speckle making visible ray is placed exactly in the center of the first illuminator 12, then tears the light modulation printing paper on the first illuminator 12.The minute surface of the second illuminator 13 is pasted a light modulation printing paper, crossbeam is moved in Y direction, then dim the alternate position spike of hot spot on printing paper according to the second illuminator 13 during cross beam movement and regulate the angle of the first illuminator 12, make crossbeam in moving process, second illuminator 13 dims the speckle on printing paper and does not moves and be positioned at center, and now the first illuminator 12 regulates complete.
Secondly the position of the second illuminator 13 is regulated, after regulating the first illuminator 12, tear the light modulation printing paper on the second illuminator 13,3rd illuminator 14 minute surface is pasted a light modulation printing paper, move laser head in the X-axis direction, then the second illuminator 13 position and angle is regulated according to the alternate position spike of visible light spot on light modulation printing paper in laser head moving process, the visible ray speckle that laser head is dimmed on printing paper in moving process does not moves and is positioned at center, and now the second illuminator 13 regulates complete.
After regulating the second illuminator 13, tear the light modulation printing paper on the 3rd illuminator 14, paste light modulation printing paper at the light hole 15 below the 3rd illuminator 14, now it would appear that following three kinds of situations, as shown in Figure 5: 1. hot spot is placed exactly in light hole 15 center, and optical path adjusting is complete；2. hot spot offsets relative to about central point, now regulates the screw at the 3rd illuminator 14 rear, makes hot spot be positioned at center；3. hot spot is positioned at other positions, now needs to raise or reduce CO2 laser tube 11, repeat above-mentioned in steps, until visible light spot is positioned at light hole 15 center.The light path mixed up passes through focus lamp 16, forms evenly sized focused spot on workpiece to be processed 17, workpiece to be processed 17 the smooth of the edge that cuts or carve, accurate.
The present invention uses visible ray to make reference, to solve at present owing to not having the reference of standard point during regulation, needs blindly and regulates illuminator repeatedly, thus cause light path to be difficult to correct the difficult problem that even cannot correct during calibration of laser light path；Solve in trimming process, due to CO simultaneously2Laser power is too high, when laser optical path skew is excessive, and laser optical path deviates from illuminator, damages people or the problem damaging thing during fixed fire.
And, although currently also having some enterprises or individual to use auxiliary device to be adjusted, but these auxiliary device are required for manual adjusting ball head plunger, regulation process is the most cumbersome, and error is bigger.Present invention introduces the automatic regulating system that motor, motor driver, motor control module, central processing unit, locating module and sensor form, abandoned the triviality of the most constantly adjusting ball head plunger so that regulation process intellectuality, simplification, precision；Laser is converted into visible ray simultaneously, improves the reliability that the safety of operation compares with reference point.
It should be appreciated that for those of ordinary skills, can be improved according to the above description or be converted, and all these modifications and variations all should be belonged to the protection domain of claims of the present invention.
Claims (6)
1. one kind is used for CO2Laser optical path correcting unit on laser cutting engraving machine, including Laser emission
Head (2), it is characterised in that this device also includes adapter (1) and regulation axle (3), adapter (1)
With CO2Laser tube (11) is fixing to be connected, and regulation axle (3) is arranged on adapter (1)；Laser-bounce
Head (2) is connected with regulation axle (3), and laser-bounce head (2) moves under the drive of regulation axle (3)；
This device also includes central processing unit (8), locating module (9) and sensor (10), sensor (10)
For the laser position recorded on illuminator and be converted into the signal of telecommunication, locating module (9) is by sensor
(10) signal of telecommunication collected is converted to analog quantity and flows to central processing unit (8), central processing unit (8)
Control to adjust axle (3) after analog quantity is processed mobile, and then drive laser beam emitting head (2) mobile.
The most according to claim 1 for CO2Laser optical path correction dress on laser cutting engraving machine
Put, it is characterised in that this device also includes motor (5), motor driver (6) and motor control module
(7)；Motor (5) is connected with regulation axle (3), and motor control module (7) one end is driven by motor
Device (6) is connected with motor (5), and the other end is connected with central processing unit (8).
The most according to claim 1 for CO2Laser optical path correction dress on laser cutting engraving machine
Put, it is characterised in that regulation axle (3) includes X-direction regulation axle and Y-direction regulation axle.
The most according to claim 1 for CO2Laser optical path correction dress on laser cutting engraving machine
Put, it is characterised in that the front-end and back-end of adapter (1) are provided with multiple screw hole, by fixing
Screw (4) is fixed.
The most according to claim 2 for CO2Laser optical path correction dress on laser cutting engraving machine
Put, it is characterised in that motor (5) is servomotor or motor.
6. described in a claim 1 for CO2Laser optical path correction dress on laser cutting engraving machine
The bearing calibration put, it is characterised in that comprise the following steps:
S1, sensor obtain the LASER SPECKLE position of illuminator, are converted into the signal of telecommunication, and locating module will
The signal of telecommunication is converted to analog quantity, and this analog quantity is sent to central processing unit；
S2, central processing unit are analyzed processing according to the signal received, and send control to motor driver
Instruction, and then control electric machine rotation, and drive regulation axle to move；
S3, when LASER SPECKLE position is accurate, complete regulation process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610407396.0A CN105834581B (en) | 2016-06-08 | 2016-06-08 | One kind is used for CO2Laser optical path means for correcting and method on laser cutting engraving machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610407396.0A CN105834581B (en) | 2016-06-08 | 2016-06-08 | One kind is used for CO2Laser optical path means for correcting and method on laser cutting engraving machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105834581A true CN105834581A (en) | 2016-08-10 |
| CN105834581B CN105834581B (en) | 2018-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610407396.0A Expired - Fee Related CN105834581B (en) | 2016-06-08 | 2016-06-08 | One kind is used for CO2Laser optical path means for correcting and method on laser cutting engraving machine |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101071757A (en) * | 2002-09-25 | 2007-11-14 | 株式会社液晶先端技术开发中心 | Annealing method |
| US20100025386A1 (en) * | 2006-10-02 | 2010-02-04 | Hammamatsu Photonics K.K. | Laser processing device |
| CN103358018A (en) * | 2012-03-28 | 2013-10-23 | 东丽工程株式会社 | Laser axis calibrating method and laser processing device utilizing the same |
| CN204504503U (en) * | 2014-12-24 | 2015-07-29 | 广州市艾派克智能激光科技有限公司 | A kind of laser cutting machine cutting head position comparatively standard apparatus |
| CN205043348U (en) * | 2015-08-31 | 2016-02-24 | 伊欧激光科技（苏州）有限公司 | Laser detection device and laser processing system |
-
2016
- 2016-06-08 CN CN201610407396.0A patent/CN105834581B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101071757A (en) * | 2002-09-25 | 2007-11-14 | 株式会社液晶先端技术开发中心 | Annealing method |
| US20100025386A1 (en) * | 2006-10-02 | 2010-02-04 | Hammamatsu Photonics K.K. | Laser processing device |
| CN103358018A (en) * | 2012-03-28 | 2013-10-23 | 东丽工程株式会社 | Laser axis calibrating method and laser processing device utilizing the same |
| CN204504503U (en) * | 2014-12-24 | 2015-07-29 | 广州市艾派克智能激光科技有限公司 | A kind of laser cutting machine cutting head position comparatively standard apparatus |
| CN205043348U (en) * | 2015-08-31 | 2016-02-24 | 伊欧激光科技（苏州）有限公司 | Laser detection device and laser processing system |
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| CN105834581B (en) | 2018-06-08 |
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