CN107414288A - Single reflection eyeglass laser scanning device and its control method based on globular motor - Google Patents
Single reflection eyeglass laser scanning device and its control method based on globular motor Download PDFInfo
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- CN107414288A CN107414288A CN201610344338.8A CN201610344338A CN107414288A CN 107414288 A CN107414288 A CN 107414288A CN 201610344338 A CN201610344338 A CN 201610344338A CN 107414288 A CN107414288 A CN 107414288A
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- laser
- globular motor
- scanning device
- reflection eyeglass
- laser scanning
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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
- B23K26/08—Devices involving relative movement between laser beam and workpiece
- B23K26/082—Scanning systems, i.e. devices involving movement of the laser beam relative to the laser head
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- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention discloses a kind of single reflection eyeglass laser scanning device and its control method based on globular motor, the scanning means includes globular motor, laser reflection eyeglass, globular motor driving plate, connecting line, connected between globular motor and globular motor driving plate by connecting line, globular motor and laser reflection eyeglass drive connection, globular motor driving laser reflection eyeglass realize the laser reflection of XY axle both directions.The present invention occupies little space, laser scanning galvanometer small volume, in light weight, it is only necessary to which an eyeglass is the laser reflection for realizing two dimensional surface, saves a reflecting optics, it is only necessary to controls a motor, controls relatively easy.
Description
Technical field
The present invention relates to a kind of laser scanning device and its control method, more particularly to a kind of single reflection eyeglass laser scanning device and its control method based on globular motor.
Background technology
Laser marking system is made up of lasing light emitter, laser transport module, laser scanning galvanometer, Laser Focusing field lens, laser control module, focal length high degree of mechanical governor motion.Focus on field lens to be typically mounted on scanning galvanometer, laser itself is invisible.
It is circular laser beam that lasing light emitter, which produces and projects one of with certain diameter width, section, and deflects certain angle by scanning galvanometer（X, in Y both directions）, then by focusing on field lens focusing laser beam so that laser, by certain graphics request, by laser action in the marking/printing in target object, realizing surface, or has welding/cutting of certain depth in the certain limit in target object.
Laser scanning galvanometer respectively has a motor to be formed with a reflecting optics by being formed with lower component in X and Y direction, and motor drives reflecting optics to rotate a certain angle in the presence of motor driving plate.Laser beam is set to reflex in the point required by object to be processed surface.
The general length of current motor is long, takes up space big, system complex.Using two kinds of eyeglasses, X/Y eyeglass size shapes are different, and rotary inertia is different, cause dynamic response feature deviation, influence actual mark effect.X/Y eyeglass mirror front distances are inconsistent, exist angular deviation with into image distortion.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of single reflection eyeglass laser scanning device and its control method based on globular motor, it occupies little space, laser scanning galvanometer small volume, it is in light weight, it is the laser reflection for realizing two dimensional surface only to need an eyeglass, save a reflecting optics, it is only necessary to control a motor, control relatively easy.
The present invention is that solve above-mentioned technical problem by following technical proposals：A kind of single reflection eyeglass laser scanning device based on globular motor, it is characterized in that, the single reflection eyeglass laser scanning device based on globular motor includes globular motor, laser reflection eyeglass, globular motor driving plate, connecting line, connected between globular motor and globular motor driving plate by connecting line, globular motor and laser reflection eyeglass drive connection, globular motor driving laser reflection eyeglass realize the laser reflection of XY axle both directions.
Preferably, the globular motor, laser reflection eyeglass, globular motor driving plate, connecting line are all located in a galvanometer housing.
Preferably, the globular motor includes spherical spinner and spherical stator.
Preferably, the spherical stator is fixed by multiple fixtures and galvanometer housing.
Preferably, connected by digital signal transmission line between the globular motor driving plate and a digital analog converter, connected between digital analog converter and a data signal control panel by transmission line.
Preferably, the side of the galvanometer housing is provided with pinboard, and pinboard is fixed by pinboard alignment pin and galvanometer housing.
Preferably, the side of the galvanometer housing is provided with pinboard, and pinboard is fixed by pinboard alignment pin and galvanometer housing.
Preferably, the side of the galvanometer housing is provided with laser light incident tool.
Preferably, the single reflection eyeglass laser scanning device based on globular motor is applied in a laser marking system, and the laser marking system also includes with lower component：
Lasing light emitter, for producing and projecting laser beam that there is certain diameter width together, that section is circle；
Laser transmitter, on focal length high degree of mechanical governor motion, the laser launched for transmitting lasing light emitter；
Laser Focusing field lens, it is connected with single reflection eyeglass laser scanning device of the present invention based on globular motor, for realizing that axle, off-axis image matter are consistent, the single reflection eyeglass laser scanning device of globular motor only needs an eyeglass to realize the laser reflection of two dimensional surface；
Laser controller, it is connected with lasing light emitter, for controlling lasing light emitter；
Focal length high degree of mechanical governor motion, the single reflection eyeglass laser scanning device with laser transmitter and based on globular motor are connected, for adjusting the height of laser transmitter and single reflection eyeglass laser scanning device based on globular motor；
Laser beam, for the light beam launched by lasing light emitter to be presented.
The present invention also provides a kind of control method of the single reflection eyeglass laser scanning device based on globular motor, it is characterised in that it comprises the following steps：
Step 1, while receive two axle movement instruction signals of motor XY；
Step 2, according to step-length track algorithm is instructed, the variable quantity of each coordinate values of XY is changed into the actual rotation step-length of each coordinates of XY；
Step 3, instruction step-length limitation；
Step 4, X, Y command signal are fitted to three-level Coordinate Rotation Digital signal；
Step 5, polar coordinates are spacing；
Step 6, it is analog drive signal by the digital-to-analogue conversion of polar coordinates revolution number signal；
Step 7, the output of globular motor voltage instruction；
Step 8, next group of XY to be subjected is waited to instruct.
The positive effect of the present invention is：The present invention occupies little space, laser scanning galvanometer small volume, in light weight, it is the laser reflection for realizing two dimensional surface only to need an eyeglass, saves a motor and a reflecting optics, and scanning effect is good in two dimensional surface, it is small into image distortion, it is only necessary to control a motor, control relatively easy.
Brief description of the drawings
Fig. 1 is the structural representation of conventional laser scanning means.
Fig. 2 is the structural representation of spherical spinner in the present invention.
Fig. 3 is the structural representation together with spherical spinner and laser reflection eyeglass in the present invention.
Fig. 4 is the structural representation together with globular motor and laser reflection eyeglass in the present invention.
Fig. 5 is the operation principle schematic diagram of laser reflection eyeglass in the present invention.
Fig. 6 is the structural representation that the single reflection eyeglass laser scanning device of the invention based on globular motor is applied in laser marking system.
Fig. 7 is the flow chart of the control method of the single reflection eyeglass laser scanning device of the invention based on globular motor.
Embodiment
Present pre-ferred embodiments are provided below in conjunction with the accompanying drawings, to describe technical scheme in detail.
As shown in Figures 1 to 6, single reflection eyeglass laser scanning device of the invention based on globular motor includes globular motor 301, laser reflection eyeglass 302, globular motor driving plate 303, connecting line 304, connected between globular motor 301 and globular motor driving plate 303 by connecting line 304, globular motor 301 and the drive connection of laser reflection eyeglass 302, the driving laser reflection of globular motor 301 eyeglass 302 realize the laser reflection of XY axle both directions.Globular motor 301, laser reflection eyeglass 302, globular motor driving plate 303, connecting line 304 are all located in a galvanometer housing 300.
Single reflection eyeglass laser scanning device of the invention based on globular motor is used to carry out laser marking to target object, it is only necessary to which an eyeglass realizes XY axle both directions（Two dimensional surface）Laser reflection, save a reflecting optics.
Globular motor 301 includes spherical spinner 311 and spherical stator 312, and spherical stator and spherical spinner can use Wound-rotor type or permanent-magnet material.Spherical stator processing is the circular cover of open-ended, and spherical spinner is embedded.Plane is processed as at the top of spherical spinner, laser reflection eyeglass and spherical spinner to be adhesively fixed.Spherical stator is fixed by multiple fixtures 313 and galvanometer housing, so increases stability.Fixture 313 can be fixed pillar or screw etc..
Connected between globular motor driving plate 303 and a digital analog converter 305 by digital signal transmission line 306, connected between digital analog converter 305 and a data signal control panel 307 by transmission line 308, the digital controlled signal that such Digital Signals plate exports can be converted into analog control signal by digital analog converter and give globular motor driving plate.
The side of galvanometer housing 300 is provided with pinboard 315, and pinboard 315 is fixed by pinboard alignment pin 314 and galvanometer housing 300, and so convenient light source by incidence is changed.
The side of galvanometer housing 300 is provided with laser light incident tool 310, so convenient to import laser.
As shown in fig. 6, laser reflection eyeglass is used for reflection laser beam；Globular motor driving plate is the drive device for making globular motor run well, required device when being globular motor operation.
Single reflection eyeglass laser scanning device 103 of the invention based on globular motor can apply in a laser marking system, and the laser marking system also includes with lower component：
Lasing light emitter 101, for producing and projecting laser beam that there is certain diameter width together, that section is circle；
Laser transmitter 102, on focal length high degree of mechanical governor motion 106, the laser launched for transmitting lasing light emitter 101；
Laser Focusing field lens 104, it is connected with single reflection eyeglass laser scanning device 103 of the present invention based on globular motor, for realizing that axle, off-axis image matter are consistent, and improve illumination uniformity, on the premise of optical system optical characteristics is not changed, change over as light-beam position, it is the laser reflection for realizing two dimensional surface that the single reflection eyeglass laser scanning device 103 of globular motor, which needs an eyeglass,；
Laser controller 105, it is connected with lasing light emitter 101, for controlling lasing light emitter；
Focal length high degree of mechanical governor motion 106, it is connected with laser transmitter 102 and laser scanning galvanometer 103, for adjusting the height of laser transmitter 102 and single reflection eyeglass laser scanning device 103 based on globular motor, the laser beam 107 of lasing light emitter can be allowed to inject laser transmitter 102 and be transferred to the single reflection eyeglass laser scanning device 103 based on globular motor；
Laser beam 107, for the light beam launched by lasing light emitter 101 to be presented.Target object 108 is a kind of medium for laser marking effect to be presented.
As shown in fig. 7, the control method of the single reflection eyeglass laser scanning device of the invention based on globular motor comprises the following steps：
Step 1, while receive two axle movement instruction signals of motor XY；
Step 2, according to step-length track algorithm is instructed, the variable quantity of each coordinate values of XY is changed into the actual rotation step-length of each coordinates of XY；
Step 3, instruction step-length limitation；
Step 4, X, Y command signal are fitted to three-level Coordinate Rotation Digital signal；
Step 5, polar coordinates are spacing；
Step 6, it is analog drive signal by the digital-to-analogue conversion of polar coordinates revolution number signal；
Step 7, the output of globular motor voltage instruction；
Step 8, next group of XY to be subjected is waited to instruct.
Two axle movement instruction signals of motor XY of step 1 can be the serial either synchronously or asynchronously data of puppy parc or custom protocol；Digital analog converter contains the level conversion submodule of corresponding digital signal.Two axle movement instruction signals of motor XY contain synchronizing clock signals, coordinate signal, coordinate input signal；And coordinate signal contains data packet head frame and verification frame.All coordinate input signals can contain positive negative differential signal or monopole level signal.
Step 2 parses frame head, verifies postamble, intercepts coordinate value, and the coordinate value comparing calculation variable quantity that step 1 is retained according to field lens focal length, and the single axis coordinate variable quantity asked for is converted the axle angle variable quantity.
Step 3 is for each single shaft step-length, using the PID of integration separation（PID is ratio, integration, the abbreviation of differential）Algorithm, calculation is intended by flux linkage orientation and estimated when rotation step-length.When the step-length exceedes motor unit interval velocity of rotation, the given step value of the axle is limited using weak magnetic algorithm.
Step 4 converts using two or three and injects zero-sequence component, carries out time-varying PARK mathematic(al) manipulations.To single shaft step length data after conversion, using CLARK mathematic(al) manipulations, radius and the polar coordinates of angle are converted to.Polar value after changing is perunit value.
Step 5 is intended calculation using BP networks and estimated when rotation step-length for polar step change.When the step-length exceedes motor unit interval velocity of rotation, the given step value of the axle is limited using weak magnetic algorithm.
The analog signal that polar coordinates numerical value after main control chip computing is passed through digital analog converter output unit voltage by step 6.The precision of the digital-to-analogue conversion is at least sixteen bit data.Traffic rate between main anti-chip and digital-to-analogue conversion is at least 16Mbps.Can additionally it be connected based on operational amplifier voltage follower circuit after digital analog converter.
Step 7 will pass through operational amplifier, increased gain to globular motor real work magnitude of voltage with subsequent voltage command signal.
The present invention occupies little space, laser scanning galvanometer small volume, in light weight, it is only necessary to which an eyeglass is the laser reflection for realizing two dimensional surface, saves a reflecting optics, it is only necessary to controls a motor, control is relatively easy, and cost is low.
Particular embodiments described above; technical problem, technical scheme and the beneficial effect of solution to the present invention are further described; it should be understood that; it the foregoing is only the specific embodiment of the present invention; it is not intended to limit the invention; within the spirit and principles of the invention, any modification, equivalent substitution and improvements done etc., should be included in the scope of the protection.
Claims (10)
- A kind of 1. single reflection eyeglass laser scanning device based on globular motor, it is characterized in that, the single reflection eyeglass laser scanning device based on globular motor includes globular motor, laser reflection eyeglass, globular motor driving plate, connecting line, connected between globular motor and globular motor driving plate by connecting line, globular motor and laser reflection eyeglass drive connection, globular motor driving laser reflection eyeglass realize the laser reflection of XY axle both directions.
- 2. the single reflection eyeglass laser scanning device based on globular motor as claimed in claim 1, it is characterised in that the globular motor, laser reflection eyeglass, globular motor driving plate, connecting line are all located in a galvanometer housing.
- 3. the single reflection eyeglass laser scanning device based on globular motor as claimed in claim 2, it is characterised in that the globular motor includes spherical spinner and spherical stator.
- 4. the single reflection eyeglass laser scanning device based on globular motor as claimed in claim 3, it is characterised in that the spherical stator is fixed by multiple fixtures and galvanometer housing.
- 5. the single reflection eyeglass laser scanning device based on globular motor as claimed in claim 4, it is characterized in that, connected by digital signal transmission line between the globular motor driving plate and a digital analog converter, connected between digital analog converter and a data signal control panel by transmission line.
- 6. the single reflection eyeglass laser scanning device based on globular motor as claimed in claim 5, it is characterised in that the side of the galvanometer housing is provided with pinboard, and pinboard is fixed by pinboard alignment pin and galvanometer housing.
- 7. the single reflection eyeglass laser scanning device based on globular motor as claimed in claim 6, it is characterised in that the side of the galvanometer housing is provided with pinboard, and pinboard is fixed by pinboard alignment pin and galvanometer housing.
- 8. the single reflection eyeglass laser scanning device based on globular motor as claimed in claim 7, it is characterised in that the side of the galvanometer housing is provided with laser light incident tool.
- 9. the single reflection eyeglass laser scanning device based on globular motor as claimed in claim 1, it is characterized in that, the single reflection eyeglass laser scanning device based on globular motor is applied in a laser marking system, and the laser marking system also includes with lower component：Lasing light emitter, for producing and projecting laser beam that there is certain diameter width together, that section is circle；Laser transmitter, on focal length high degree of mechanical governor motion, the laser launched for transmitting lasing light emitter；Laser Focusing field lens, it is connected with single reflection eyeglass laser scanning device of the present invention based on globular motor, for realizing that axle, off-axis image matter are consistent, the single reflection eyeglass laser scanning device of globular motor only needs an eyeglass to realize the laser reflection of two dimensional surface；Laser controller, it is connected with lasing light emitter, for controlling lasing light emitter；Focal length high degree of mechanical governor motion, the single reflection eyeglass laser scanning device with laser transmitter and based on globular motor are connected, for adjusting the height of laser transmitter and single reflection eyeglass laser scanning device based on globular motor；Laser beam, for the light beam launched by lasing light emitter to be presented.
- 10. a kind of control method of the single reflection eyeglass laser scanning device based on globular motor, it is characterised in that it comprises the following steps：Step 1, while receive two axle movement instruction signals of motor XY；Step 2, according to step-length track algorithm is instructed, the variable quantity of each coordinate values of XY is changed into the actual rotation step-length of each coordinates of XY；Step 3, instruction step-length limitation；Step 4, X, Y command signal are fitted to three-level Coordinate Rotation Digital signal；Step 5, polar coordinates are spacing；Step 6, it is analog drive signal by the digital-to-analogue conversion of polar coordinates revolution number signal；Step 7, the output of globular motor voltage instruction；Step 8, next group of XY to be subjected is waited to instruct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610344338.8A CN107414288A (en) | 2016-05-23 | 2016-05-23 | Single reflection eyeglass laser scanning device and its control method based on globular motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610344338.8A CN107414288A (en) | 2016-05-23 | 2016-05-23 | Single reflection eyeglass laser scanning device and its control method based on globular motor |
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| CN107414288A true CN107414288A (en) | 2017-12-01 |
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| CN201610344338.8A Pending CN107414288A (en) | 2016-05-23 | 2016-05-23 | Single reflection eyeglass laser scanning device and its control method based on globular motor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108195318A (en) * | 2017-12-25 | 2018-06-22 | 安徽大学 | Globular motor rotor fixed position device and localization method based on laser curtain imaging |
| US11313531B1 (en) | 2020-10-16 | 2022-04-26 | Honeywell International Inc. | Vehicle searchlight system with light source coupled to spherical motor |
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| CN104836408A (en) * | 2015-03-24 | 2015-08-12 | 北京机械设备研究所 | Six degrees of freedom permanent magnet synchronous magnetic suspension spherical motor |
| CN104898377A (en) * | 2014-03-04 | 2015-09-09 | 郑博文 | Optical processing system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0895640A (en) * | 1994-09-26 | 1996-04-12 | Omron Corp | Directional angle controller and various devices using the same controller |
| US6376820B1 (en) * | 2000-03-24 | 2002-04-23 | The Boeing Company | Two axis gimbal having a spherical bearing |
| CN201626176U (en) * | 2010-03-23 | 2010-11-10 | 周金泽 | Semiconductor pumping table type laser marking machine |
| CN201889584U (en) * | 2010-12-01 | 2011-07-06 | 杭州中科新松光电有限公司 | High-power laser remote flying processing head |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108195318A (en) * | 2017-12-25 | 2018-06-22 | 安徽大学 | Globular motor rotor fixed position device and localization method based on laser curtain imaging |
| CN108195318B (en) * | 2017-12-25 | 2020-05-12 | 安徽大学 | Spherical motor rotor positioning device and positioning method based on laser curtain imaging |
| US11313531B1 (en) | 2020-10-16 | 2022-04-26 | Honeywell International Inc. | Vehicle searchlight system with light source coupled to spherical motor |
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