CN106881525B - Laser machine control system and its control method - Google Patents
Laser machine control system and its control method Download PDFInfo
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- CN106881525B CN106881525B CN201510936992.3A CN201510936992A CN106881525B CN 106881525 B CN106881525 B CN 106881525B CN 201510936992 A CN201510936992 A CN 201510936992A CN 106881525 B CN106881525 B CN 106881525B
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- Prior art keywords
- laser
- control
- bogey
- control command
- machining head
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Classifications
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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
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
- B23K26/064—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms
- B23K26/0643—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms comprising mirrors
-
- 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
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
- B23K26/064—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms
- B23K26/0648—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms comprising lenses
Abstract
A kind of laser processing control system, it is made of control device, bogey, laser Machining head and machining object plummer, it is configured on bogey by laser Machining head, and the position of bogey and the output power of posture, the focal position of laser Machining head and laser Machining head are planned simultaneously, and laser Machining head is correctly processed when bogey is mobile, thus promote overall processing efficiency, and using the focal position of three-dimensional distortion correction unit calibration of laser processing head, the precision that also improving laser is processed.
Description
Technical field
The invention relates to a kind of control system and control methods, in particular to a kind of laser processing control system
And its control method.
Background technique
Laser processing is to be irradiated on the specific position of object to be processed with laser beam, and use different types of laser light source
From different output powers, object to be processed is made to generate different processing results, general common laser processing means have: welding,
Cutting, texture or surface treatment etc..
Existing laser-processing system is commonly used for 2D plane machining, but the machining kinds range of 2D plane machining more has
Limit can be processed if being applied to 3D simple surface (the small curved surface of Curvature varying) though processing, its quality processed, precision are poor,
It is that can not process satisfactory as a result, must laser machine by 3D just may achieve if 3D is complex-curved；So at present
3D laser processing control method be, for example: only by the shift position of control bogey, but due to the movement of bogey
Speed is much smaller than the movement speed of laser Machining head, therefore must just can be carried out laser until bogey reaches processing stand and add
Work, it is at a fairly low by the processing efficiency of this mode；Furthermore existing 3D laser machines control method, due to the movement of bogey
Scarce capacity can not make the folder between the Laser output direction of laser Machining head and the surface with complex-curved machined object
Angle is maintained in angle appropriate, and keeps the quality, precision and efficiency of 3D complex surface machining bad.Separately there is additional setting vision
Detector reaches laser processing course corrections effect, but additional setting vision detector need to additionally increase cost, and aforesaid way is simultaneously
Current 3D laser processing problem encountered is not can effectively solve.
Summary of the invention
In order to solve the problems, such as described in prior art, the main purpose of the present invention is to provide a kind of laser processing controls to be
System and its control method, are configured on bogey, and cook up bogey by control device by laser Machining head
After the output power of position and posture, the focal position of laser Machining head and laser Machining head, and make swashing for laser Machining head
Beam direction and machined object surface keep the angle for being appropriate for laser processing, meanwhile, laser Machining head is moved in bogey
It can correctly be processed when dynamic, thus promote overall processing quality and efficiency, and add using three-dimensional distortion correction unit calibration of laser
The focal position of foreman, the precision that also improving laser is processed.
According to above-mentioned purpose, still a further object of the present invention is to provide a kind of laser processing control system, be by control device,
Bogey and laser Machining head are formed, and the control device is connected to the bogey and the laser Machining head, institute
Laser Machining head is stated to outgoing laser beam, it is characterised in that: the laser Machining head is configured on the bogey, described
Control device to generate with planning control order, the control command include the bogey control command, it is described swash
The control command of beam output power and the control command of the laser beam foucing position, by described in control command control
The position of bogey and posture and the control beam output power and the laser beam foucing position, and held according to described
The position set, posture, movement speed and moving direction are carried, the control of the laser beam foucing of the laser Machining head is compensated
Order, the control device shake according to the X that the control command of compensated laser beam foucing position adjusts the laser Machining head
The position of mirror, Y galvanometer and condenser lens.
According to above-mentioned purpose, further object of the present invention is to provide a kind of laser processing control method, is to control
Control system is laser machined as composed by control device, bogey and laser Machining head, the laser Machining head is to defeated
Laser beam out, which is characterized in that the control device is connected to the bogey and the laser Machining head, comprising: generate
Machining path；According to the machining path planning control order, the control command include the bogey control command,
The control command of the beam output power and the laser beam foucing position control order；It is controlled according to the control command
The position and posture, the beam output power of the laser Machining head and the laser beam foucing position of the bogey；
And according to the position of the bogey, posture, speed and moving direction, the laser beam for compensating the laser Machining head is burnt
The control command of point position；And the control command according to the compensated laser beam foucing position, the control device adjustment
The position of the X galvanometer of the laser Machining head, Y galvanometer and condenser lens.
It knows to be configured on bogey by laser Machining head through above-mentioned, and plans position and the appearance of bogey simultaneously
The output power of state, the focal position of laser Machining head and laser Machining head, and make the beam direction of laser Machining head with
Machined object surface keeps the angle for being appropriate for laser processing, while can correctly process when bogey is mobile, thus mentions
Overall processing quality and efficiency are risen, and using the focal position of three-dimensional distortion correction unit calibration of laser processing head, is also promoted
The precision of laser processing.
Detailed description of the invention
Fig. 1 is the schematic diagram of the laser processing control system of the embodiment of the present invention.
Fig. 2 is the schematic diagram of the control device of the laser processing control system of the embodiment of the present invention.
Fig. 3 is the schematic diagram of the control device of the laser processing control system of another embodiment of the present invention.
Fig. 4 is the schematic diagram of the laser Machining head of the laser processing control system of the embodiment of the present invention.
Fig. 5 is the laser processing control method flow chart of the embodiment of the present invention.
Fig. 6 is the laser processing control method flow chart of another embodiment of the present invention.
Fig. 7 be the embodiment of the present invention laser processing path modification before compared with revised scheme.
Specific embodiment
Since the invention discloses a kind of laser processing control systems, wherein output laser inside the laser Machining head utilized
The mode of light source and the principle of X, Y galvanometer and condenser lens, having usually intellectual for correlative technology field can be illustrated, therefore
With following description, no longer make complete description.Meanwhile the schema hereinafter to be compareed, it is that expression has with of the invention
The related system structure of numerical control system feature and function of tool changing function are illustrated, and do not draw completely according to actual size,
Why not first chats bright.
The invention relates to a kind of laser processing control system, in particular to comprising control device, bogey,
The laser processing control system of laser Machining head and machining object plummer.
Firstly, please refer to Fig. 1, Fig. 2 and Fig. 4, wherein Fig. 1 is the laser processing control system of the embodiment of the present invention
Schematic diagram；Fig. 2 is the schematic diagram of the control device of the laser processing control system of the embodiment of the present invention；And Fig. 4 is the present invention
The schematic diagram of the laser Machining head of the laser processing control system of embodiment.
As shown in Figure 1, the laser processing control system of the embodiment of the present invention is by control device 1, bogey 2, laser
Processing head 3 and machining object plummer 4 are formed, control device 1 be in a wired or wireless manner with bogey 2 and machining object
Plummer 4 connects, and machining object plummer 4 is placed on machining object plummer 4 to carry object 5 to be processed, object 5 to be processed,
Laser Machining head 3 is configured on bogey 2；Wherein, laser Machining head 3 has displacement to outgoing laser beam, bogey 2
With the function of rotation, and laser Machining head 3 is mobile relative to object 5 to be processed with bogey 2, and therefore, laser Machining head 3 has
There is the ability for the surface curvature for adapting to object 5 to be processed.
Then, as shown in Fig. 2, control device 1 of the invention includes that machining path generates unit 11, traverse planning unit
12, three-dimensional distortion correction unit 13, focal position control unit 14, power control unit 15, position and attitude control unit 16 and
Location determination unit 17, traverse planning unit 12 are connected to machining path and generate unit 11, three-dimensional distortion correction unit 13, power
Control unit 15, position and attitude control unit 16 and location determination unit 17, three-dimensional distortion correction unit 13 are connected to focus position
Control unit 14 is set, position and attitude control unit 16 is connected to location determination unit 17.
Followed by as shown in figure 4, laser Machining head 3 of the invention includes laser light source 31, X galvanometer 32, Y galvanometer 33, gathers
Focus lens 34 and drive motor 35, condenser lens 34 has optical axis O, and when putting object 5 to be processed, the target of object 5 to be processed is processed
The angle of the optical axis O of the normal vector and condenser lens 34 in region is in appropriate angle, in this preferred embodiment, condenser lens 3
Optical axis O and the normal vector on 5 surface of object to be processed keep the angle of 0 to 15 degree, drive motor 35 is connected to condenser lens 34, drives
Dynamic motor 35 drives the movement of condenser lens 34, laser light source 31 to issue laser to X, Y galvanometer 32,33, X, Y galvanometer 32,
After 33 reflection lasers, laser advances through condenser lens 34 towards condenser lens 34 along the direction optical axis O, and condenser lens 34 is by laser
It issues after focusing to object 5 to be processed and is laser machined.
Continuing with simultaneously refering to Fig. 2, Fig. 4 and Fig. 7, wherein before Fig. 7 is the laser processing path modification of the embodiment of the present invention
Scheme compared with revised.As shown in Fig. 2, machining path, which generates unit 11, receives the Machining Instruction generation processing that user is inputted
Path, machining path include path, posture and laser power, posture mean condenser lens 3 optical axis O and 5 surface of object to be processed
Normal vector angle between the two, and export to traverse planning unit 12, after traverse planning unit 12 receives machining path, root
Control command is cooked up according to machining path, control command includes the control command of bogey 2, laser beam foucing X-axis position
Control command, the control command of laser beam foucing Y-axis position, the control command of laser beam foucing Z axis position and laser beam output
The control command of power, traverse planning unit 12 first export the control command of bogey 2 to position and attitude control unit 16,
Position and attitude control unit 16 adds laser by the position and posture of the control command control bogey 2 of bogey 2
The normal vector on the beam direction of foreman 3 and 5 surface of object to be processed keeps the machining angle for being appropriate for laser processing, herein compared with
In good embodiment, the angle of 0 degree to 15 degree of beam direction and 5 surface of object to be processed holding；Then, position and attitude control unit
16 positions that are moved at present of output bogeys 2 and posture are to location determination unit 17, and location determination unit 17 is by holding
It carries the position for setting 2 and posture message judges whether bogey 2 is completed to position, when location determination unit 17 judges bogey
2 are completed positioning, imply that the speed of bogey 2 is zero, and the passback of location determination unit 17 first judges that message to traverse is planned
Unit 12, after traverse planning unit 12 receives the first judgement message, positioning, then, traverse is completed in confirmation bogey 2
Planning unit 12 compensates the laser beam of laser Machining head 3 according to the position of bogey 2, posture, movement speed and moving direction
The control of the control command of focus X-ray shaft position, the control command of laser beam foucing Y-axis position and laser beam foucing Z axis position is ordered
It enables, and exports the control command of compensated laser beam foucing X-axis position, the control command of laser beam foucing Y-axis position and swash
The control command of beam focus Z axis position to three-dimensional distortion correction unit 13, meanwhile, traverse planning unit 12 exports laser beam
The control command of power is exported to power control unit 15, and three-dimensional distortion correction unit 13 receives traverse planning unit 12 and exported
Compensated laser beam foucing X-axis position control command, the control command and laser beam foucing of laser beam foucing Y-axis position
After the control command of Z axis position, the rotation control command and laser for being converted to the X galvanometer 32 and Y galvanometer 33 of laser Machining head 3 add
It exports after the Bit andits control order of the condenser lens 34 of foreman 3 to focal position control unit 14, and exports to focal position and control
Unit 14 processed, power control unit 15 receive the control command of the output power for the laser beam that traverse planning unit 12 is exported,
To control the output power of laser beam, focal position control unit 14 receives the laser that three-dimensional distortion correction unit 13 is exported
The control command of the X galvanometer 32 of processing head 3 and the rotation control command of Y galvanometer 33 and the drive motor 35 of laser Machining head 3 is driven
X galvanometer 32 and Y galvanometer 33 is rotated, and drives the drive motor 35 of laser Machining head 3 to drive condenser lens 34 to carry out
Displacement, to control the focal position of laser beam, then, traverse planning unit 12, which judges whether control command reads, to be terminated, by
With judge whether complete processing, if traverse planning unit 12 judgement do not complete processing, again control bogey 2 position with
Posture, and judge whether to complete positioning, control laser beam foucing position and adjustment laser beam power again；On the other hand, when fixed
Position judging unit 17 judges that bogey 2 does not complete positioning, then transmits second and judge signal to traverse planning unit 12, traverse rule
Draw unit 12 export bogey 2 again control command to bogey 2, drive bogey 2 to be positioned, a left side of Fig. 7
Figure is shown as the laser beam foucing track before correcting through three-dimensional distortion correction unit 13, and the laser beam foucing before display correction is in
Distort pattern, and the right figure of Fig. 7 is shown as the laser beam foucing track after correcting through three-dimensional distortion correction unit 13, display warp
Laser beam foucing track after overcorrect is more smooth；Meanwhile while laser beam processing, the power of controllable controlling laser beam,
Therefore different degrees of processing effect can be obtained on object to be processed.
Then, please refer to Fig. 1, Fig. 3 and Fig. 4, wherein Fig. 3 is the laser processing control of another embodiment of the present invention
The schematic diagram of the control device of system.
As shown in figure 3, control device 1 ' includes that machining path generates unit 11, traverse planning unit 12 ', three-dimensional distortion school
Positive unit 13, focal position control unit 14, power control unit 15 and position and attitude control unit 16, traverse planning unit
12 ', which are connected to machining path, generates unit 11, three-dimensional distortion correction unit 13, power control unit 15 and position and attitude control list
Member 16, three-dimensional distortion correction unit 13 is connected to focal position control unit 14.
As hereinbefore, details are not described herein for laser Machining head 3 used in this implementation.
Continuing with simultaneously refering to Fig. 3 and Fig. 4, machining path generates unit 11 and receives the Machining Instruction generation that user is inputted
Machining path, and export to traverse planning unit 12 ' and advised after traverse planning unit 12 ' receives machining path according to machining path
Draw control command, control command include the control command of bogey 2, laser Machining head 3 laser light source 31 export it is sharp
The control command of beam output power, the control command of laser beam foucing X-axis position, the control life of laser beam foucing Y-axis position
It enables and the control command of laser beam foucing Z axis position, position and attitude control unit 16 receives what traverse planning unit 12 ' was exported
The control command of bogey 2, to control position and the posture of bogey 2, traverse planning unit 12 ' is according to bogey
2 position, posture, movement speed and moving direction compensates control command, the laser beam foucing Y-axis of laser beam foucing X-axis position
Control command, the control command of laser beam foucing Z axis position of position use the shifting of the laser beam foucing of compensation laser Machining head
Dynamic position, traverse planning unit 12 ' export the control command of the laser beam foucing X-axis position of compensated laser Machining head 3, swash
The control command of beam focus Y-axis position and the control command of laser beam foucing Z axis position are to three-dimensional distortion correction unit 13, together
When, the control command of 12 ' outgoing laser beam output power of traverse planning unit to power control unit 15, three-dimensional distortion correction list
Member 13 receives the control command of the focus X-ray shaft position of compensated laser beam that traverse planning unit 12 ' is exported, laser beam
After the control command of focus Y-axis position, the control command of the focus Z axis position of laser beam, the X vibration of laser Machining head 3 is converted to
It is exported after the Bit andits control order of the condenser lens 34 of the rotation control command and laser Machining head 3 of mirror 32 and Y galvanometer 33, power
Control unit 15 receives the control command for the beam output power that traverse planning unit 12 ' is exported, to control laser beam
Output power, focal position control unit 14 receives the X galvanometer for the laser Machining head 3 that three-dimensional distortion correction unit 13 is exported
32 with the control command of the rotation control command of Y galvanometer 33 and the drive motor 35 of laser Machining head 3, the drive of laser Machining head 3
Dynamic motor 35, which is used, drives condenser lens 34, and to control the focal position of laser beam, then, traverse planning unit 12 ' judges
Whether control command, which reads, terminates, and uses and judges whether to complete processing, if the judgement of traverse planning unit 12 ' does not complete processing,
Position and the posture of bogey 2 are controlled again, and compensate laser beam foucing position and adjustment laser beam power again；In this reality
It applies in example, by control device shown in Fig. 3, when may make that bogey 2 is mobile, laser Machining head 3 can be processed simultaneously
Movement can save the overall processing time without just can be carried out laser processing movement after bogey 2 completes positioning.
Then, referring to Fig. 5, simultaneously arrange in pairs or groups simultaneously Fig. 1, Fig. 2 and Fig. 4 are illustrated, wherein Fig. 5 is the embodiment of the present invention
Laser processing control method flow chart.
Step S1: machining path generates unit 11 and receives the Machining Instruction generation machining path that user is inputted, and exports
Then step S2 is executed to traverse planning unit 12.
Step S2: after traverse planning unit 12 receives machining path, control command, control life are cooked up according to machining path
Enable the control comprising the control command of bogey 2, the control command of laser beam foucing X-axis position, laser beam foucing Y-axis position
The control command of order, the control command of laser beam foucing Z axis position and beam output power, traverse planning unit 12 will be held
It carries and sets 2 control command and export to position and attitude control unit 16, then, execute step S3.
Step S3: position and attitude control unit 16 receives the control command for the bogey 2 that traverse planning unit 12 exports
Afterwards, position and attitude control unit 16 makes to hold by the position and posture of the control command control bogey 2 of bogey 2
The normal vector holding of the beam direction and 5 surface of machined object that are loaded in the laser Machining head 3 of bogey 2 is appropriate for laser
The angle of processing, in this preferred embodiment, the angle of 0 degree to 15 degree of beam direction and 5 surface of object to be processed holding is connect
, execute step S4.
Step S4: position and attitude control unit 16 exports the position that bogey 2 is moved at present and posture to positioning
Judging unit 17, location determination unit 17 is to judge whether bogey 2 is completed to position, when judging unit 17 judges carrying dress
It sets 2 to have completed to position, implies that the speed of bogey 2 is zero, the passback of location determination unit 17 first judges message to traverse
Planning unit 12, after traverse planning unit 12 receives the first judgement message, positioning is completed in confirmation bogey 2, then,
Execute step S5.
On the other hand, when the location determination unit 17 of step S4 judges that bogey 2 does not complete positioning, then transmitting second is sentenced
Disconnected signal executes step S3 to traverse planning unit 12 again, and traverse planning unit 12 exports the control of bogey 2 again
Order drives bogey 2 to be positioned, repeats step S3~S4 until bogey 2 is completed to position to bogey 2.
Step S5: when bogey 2 has positioned completion, traverse planning unit 12 according to the position of bogey 2, posture,
Movement speed and moving direction compensate control command, the laser beam foucing Y-axis of the laser beam foucing X-axis position of laser Machining head 3
The control command of position and the control command of laser beam foucing Z axis position, and export compensated laser beam foucing X-axis position
The control command of control command, the control command of laser beam foucing Y-axis position and laser beam foucing Z axis position to three-dimensional distort school
Positive unit 13, meanwhile, the control command of 12 outgoing laser beam output power of traverse planning unit is exported to power control unit 15,
Then, step S6 and S8 are performed simultaneously.
Step S6: three-dimensional distortion correction unit 13 receives the coke for the compensated laser beam that traverse planning unit 12 is exported
Put the control of the focus Z axis position of the control command of X-axis position, the control command of the focus Y-axis position of laser beam and laser beam
Order, and be converted to the X galvanometer 32 and Y galvanometer 33 of laser Machining head 3 rotation control command and laser Machining head 3 focusing it is saturating
Output then executes step S7 to focal position control unit 14 after the Bit andits control order of mirror 34.
Step S7: after focal position control unit 14 receives rotation control command and Bit andits control order, X galvanometer is adjusted
32, it Y galvanometer 33 and is connected to the drive motor 35 of condenser lens 34 and then, executes step to control the focal position of laser beam
Rapid S9.
Step S8: power control unit 15 receives the control of the output power for the laser beam that traverse planning unit 12 is exported
Order then, executes step S9 to control the output power of laser beam.
Step S9: traverse planning unit 12 judges that control command has all been read and finishes, finally, thening follow the steps S10, i.e.,
Processing is completed, in addition, terminating if traverse planning unit 12 judges that control command is not yet read, it is straight to execute step S3~S9 again
It is processed to completion.
In the present embodiment, be configured on bogey by laser Machining head, and plan simultaneously the position of bogey with
The output power of posture, the focal position of laser Machining head and laser Machining head, and make the beam direction of laser Machining head
The angle for being appropriate for laser processing is kept with machined object surface, can increase the precision of laser processing, promotes whole laser
Processing quality, and using the focal position of three-dimensional distortion correction unit calibration of laser processing head, further improving laser adds
The precision of work.
Finally, referring to Fig. 6, simultaneously arrange in pairs or groups simultaneously Fig. 1, Fig. 3 and Fig. 4 are illustrated, wherein Fig. 6 is another reality of the present invention
Apply the laser processing control method flow chart of example.
Step S ' 1: machining path generates unit 11 and receives the Machining Instruction generation machining path that user is inputted, and exports
Then step S ' 2 is executed to traverse planning unit 12 '.
Step S ' 2: after traverse planning unit 12 ' receives machining path, according to machining path planning control order, control life
Enable the control life of 31 outgoing laser beam output powers of laser light source comprising the control command of bogey 2, laser Machining head 3
It enables, the control command of laser beam foucing X-axis position, the control command of laser beam foucing Y-axis position and laser beam foucing Z axis position
Control command, then, execute step S ' 3.
Step S ' 3: position and attitude control unit 16 receives the control for the bogey 2 that traverse planning unit 12 ' is exported
Order then, executes step S ' 4 to control position and the posture of bogey 2.
Step S ' 4: traverse planning unit 12 ' is mended according to the position of bogey 2, posture, movement speed and moving direction
Repay the control command of the laser beam foucing X-axis position of laser Machining head 3, the control command and laser of laser beam foucing Y-axis position
The control command of beam focus Z axis position, uses the shift position of the laser beam foucing of compensation laser Machining head 3, and exports compensation
The control command of the laser beam foucing X-axis position of laser Machining head 3 afterwards, the control command of laser beam foucing Y-axis position and swash
The control command of beam focus Z axis position to three-dimensional distortion correction unit 13, meanwhile, 12 ' outgoing laser beam of traverse planning unit
The control command of output power then executes step S ' 5 and S ' 7 to power control unit 15.
Step S ' 5: three-dimensional distortion correction unit 13 receives the compensated laser beam that traverse planning unit 12 ' is exported
The control of the focus Z axis position of the control command of focus X-ray shaft position, the control command of the focus Y-axis position of laser beam and laser beam
After system order, corrects and be converted to the X galvanometer 32 of laser Machining head 3 and the rotation control command of Y galvanometer 33 and laser Machining head 3
Condenser lens 34 Bit andits control order after output to focal position control unit 14, then, execute step S ' 6.
Step S ' 6: focal position control unit 14 receives the laser Machining head 3 that three-dimensional distortion correction unit 13 is exported
The control command of the drive motor 35 of the rotation control command and laser Machining head 3 of X galvanometer 32 and Y galvanometer 33, laser Machining head 3
Drive motor 35 use drive condenser lens 34, to control the focal position of laser beam, then, execute step S ' 8.
Step S ' 7: power control unit 15 receives the control of the output power for the laser beam that traverse planning unit 12 ' is exported
System order, to control the output power of laser beam.
Step S ' 8: traverse planning unit 12 ' judges that control command has all been read and finishes, and thens follow the steps S9, that is, is completed
It is straight to execute step S ' 3~S ' 8 in addition, terminating if the judgement processing order of traverse planning unit 12 ' is not yet read again for processing
It is processed to completion.
In the present embodiment, be configured on bogey by laser Machining head, and plan simultaneously the position of bogey with
The output power of posture, the focal position of laser Machining head and laser Machining head, and can swash during bogey is mobile
Light processing head can be laser machined simultaneously, and the beam direction of laser Machining head and machined object surface is made to keep being suitble to
The angle laser machined, in this preferred embodiment, beam direction and 5 surface of object to be processed are kept for 0 degree to 15 degree
Angle is completed the time of positioning and can correctly be processed in this way, which process time is not limited to bogey, thus promotes whole add
Working medium amount and efficiency, and using the focal position of three-dimensional distortion correction unit calibration of laser processing head, it is also further promoted and is swashed
The precision of light processing.
In the embodiments of the present invention, used laser light source 31 is, for example: carbon dioxide laser (CO2Laser), standard
Molecular laser, Nd:YAG laser etc., the present invention does not limit herein.
In the embodiments of the present invention, machining path, which generates unit 11, can be computer aided design and manufacture software
(Computer Aided Design；Computer Aided Manufacturing), the present invention does not limit herein.
In the embodiments of the present invention, the bogey for laser machining control system is, for example: three axis machining machine, four axis add
Work machine, five-axis robot machine, king post system processing machine or mechanical arm of at least three axis etc., the present invention does not limit herein.
In the embodiments of the present invention, the laser Machining head for laser machining control system be can be with scanning function before object lens
The laser Machining head of scanning function after energy or object lens, is explained for scanning before object lens, the present invention does not limit herein.
In the embodiments of the present invention, correcting mode used in three-dimensional distortion correction unit 13 is first to measure more to swash
Beam focal location, and store more laser beam foucing positions in three-dimensional distortion correction unit 13, then, three-dimensional distortion correction list
The laser beam foucing positions stored by inquiry of member 13, and the X galvanometer 32 of the laser Machining head 3 after being corrected with interpolation method
With the Bit andits control order of the condenser lens 34 of the rotation control command and laser Machining head 3 of Y galvanometer 33, herein signified interpolation
Method is, for example: linear interpolation or cubic interpolation method, and the present invention does not limit herein.
In the embodiments of the present invention, laser processing includes 2D laser processing and 3D laser processing etc., and aforementioned meaning 3D swashs
Light processing can be the laser processing of 3D tapered plane or the laser processing of 3D curved surface etc., and the present invention does not limit herein.
The foregoing is merely presently preferred embodiments of the present invention, the interest field being not intended to limit the invention；More than simultaneously
Description, the special personage of correlative technology field should can be illustrated and be implemented, therefore other are without departing from disclosed
The lower equivalent change or modification completed of spirit, should be included in claims.
Claims (5)
1. a kind of laser processing control system, is made of control device, bogey and laser Machining head, the control dress
It sets and is connected to the bogey and the laser Machining head, the laser Machining head is to outgoing laser beam, it is characterised in that:
The laser Machining head is configured on the bogey；
The control device, to generate with planning control order, the control command include the bogey control life
It enables, the control command of the control command of the beam output power and the laser beam foucing position, is ordered by the control
The position for controlling the bogey and posture, and the control beam output power and the laser beam foucing position are enabled,
And according to the position of the bogey, posture, movement speed and moving direction, the control of the laser beam foucing position is compensated
Order, the control device adjust the laser Machining head according to the control command of the compensated laser beam foucing position
The position of X galvanometer, Y galvanometer and condenser lens, and the control device includes:
Machining path generates unit, receives the Machining Instruction that user is inputted and generates machining path；
Traverse planning unit is connected to the machining path and generates unit, after receiving the machining path, is added according to described
Work path planning and the output control command, the control command include the control command of the bogey, the laser
The control command of the output power of beam and the control command of the laser beam foucing position, and according to the position of the bogey
It sets, posture, movement speed and moving direction, after the focal position control command for compensating the laser beam of the laser Machining head
Output；
Position and attitude control unit is connected to the traverse planning unit, receive the traverse planning unit exported it is described
The control command of bogey makes the beam direction of laser Machining head to control position and the posture of the bogey
Machining angle is kept with the normal vector on machined object surface, and exports position and the posture message of the bogey；
Location determination unit is connected to the traverse planning unit and the position and attitude control unit, the rheme to receive
Position and the posture message for setting the bogey that posture control unit is exported, use and judge whether the bogey is complete
It at positioning, and returns and judges message to the traverse planning unit, the bogey described in the location determination unit judges is
Positioning is completed, i.e., the speed of the described bogey is zero, and the traverse planning unit compensates the described of the laser Machining head and swashs
The control command of beam focal location；
Power control unit is connected to the traverse planning unit, receives the laser that the traverse planning unit is exported
The control command of beam output power, to control the output power of the laser beam；
Three-dimensional distortion correction unit is connected to the traverse planning unit, receives the compensation that the traverse planning unit is exported
After the control command of the focal position of the laser beam afterwards, the X galvanometer and the Y for being converted to the laser Machining head shake
The Bit andits control order of the condenser lens of the rotation control command and laser Machining head of mirror；And
Focal position control unit is connected to the three-dimensional distortion correction unit, and it is defeated to receive the three-dimensional distortion correction unit institute
The X galvanometer of the laser Machining head out and the rotation control command of the Y galvanometer and the laser Machining head it is described
The Bit andits control order of condenser lens, to control the focal position of the laser beam.
2. laser processing control system as described in claim 1, which is characterized in that the machining angle range is 0 degree to 15
Degree.
3. as described in claim 1 laser processing control system, which is characterized in that the bogey be three axis machining machine,
Four-shaft processor, five-axis robot machine, king post system processing machine or at least three axis mechanical arm.
4. laser processing control system as described in claim 1, which is characterized in that the laser Machining head is with before object lens
The laser Machining head of scanning function after scanning function or object lens.
5. a kind of laser processing control method using laser processing control system as described in claim 1, is to control
Control system is laser machined as composed by control device, bogey and laser Machining head, the laser Machining head is to defeated
Laser beam out, which is characterized in that the control device is connected to the bogey and the laser Machining head, comprising:
Generate machining path；
According to the machining path planning control order, the control command includes the control command, described of the bogey
The control command of beam output power and the control command of the laser beam foucing position；
The position of the bogey is controlled according to the control command and the laser beam of posture, the laser Machining head is defeated
Power and the laser beam foucing position out make the beam direction of the laser Machining head and machined object surface whereby
Normal vector keeps machining angle；
And according to the position of the bogey, posture, movement speed and moving direction, the described of the laser Machining head is compensated
The control command of laser beam foucing position；And
Judge whether the bogey is completed to position, and exports judgement message, when judging that positioning is completed in the bogey,
The movement speed for implying that the bogey is zero, compensates the control of the laser beam foucing position of the laser Machining head
System order；And
According to the control command of the compensated laser beam foucing position, the control device adjusts the laser Machining head
The position of X galvanometer, Y galvanometer and condenser lens.
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| TWI664043B (en) * | 2017-12-07 | 2019-07-01 | 新代科技股份有限公司 | Laser-mark machine and laser mark control method thereof |
| CN110842358A (en) * | 2019-10-17 | 2020-02-28 | 武汉方鼎汽车部件制造有限公司 | Laser tailor-welding equipment for automobile |
| CN114571275B (en) * | 2022-03-24 | 2023-07-07 | 新代科技(苏州)有限公司 | Control method for automatic loosening and braking of lathe spindle |
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| JP3315556B2 (en) * | 1994-04-27 | 2002-08-19 | 三菱電機株式会社 | Laser processing equipment |
| JPH10301052A (en) * | 1997-05-02 | 1998-11-13 | Sumitomo Heavy Ind Ltd | Method of correcting machining position deviation of laser beam machine |
| US7315038B2 (en) * | 2005-08-26 | 2008-01-01 | Electro Scientific Industries, Inc. | Methods and systems for positioning a laser beam spot relative to a semiconductor integrated circuit using a processing target as an alignment target |
| CN101142052B (en) * | 2006-01-06 | 2010-08-25 | 三菱电机株式会社 | Laser machining apparatus, program generating device and laser processing method |
| JP5288987B2 (en) * | 2008-10-21 | 2013-09-11 | 三菱電機株式会社 | Laser processing equipment |
| ES2377277T3 (en) * | 2009-08-26 | 2012-03-26 | Indaffil Holding Ag | Procedure for producing a surface structure of an embedded metal sheet, a continuous strip or a cylindrical stamping roller |
| CN102049611B (en) * | 2009-10-30 | 2013-11-06 | 技鼎股份有限公司 | Laser processing device applied to fragile material and laser processing and displacement compensating method |
| CN101786200B (en) * | 2010-02-26 | 2012-01-25 | 华中科技大学 | Method for projection-type laser etching on free curved surface |
| CN101804521B (en) * | 2010-04-15 | 2014-08-20 | 中国电子科技集团公司第四十五研究所 | Galvanometer system correction device and correction method thereof |
| CN102166685B (en) * | 2011-04-27 | 2013-12-25 | 华中科技大学 | Three-coordinate galvanometer scanning laser processing head |
| CN203236853U (en) * | 2012-12-21 | 2013-10-16 | 上海大量光电科技有限公司 | Laser-processing image-detection correcting device |
| CN103817433B (en) * | 2014-01-23 | 2016-04-13 | 浙江工业大学 | A kind of Laser Processing hot spot control method and special device thereof |
| CN204195057U (en) * | 2014-10-14 | 2015-03-11 | 大族激光科技产业集团股份有限公司 | A kind of precise laser scanning machining system |
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