CN110125551A - The 3D laser mark printing device and method of wall circular mark in a kind of big radian depth - Google Patents
The 3D laser mark printing device and method of wall circular mark in a kind of big radian depth Download PDFInfo
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- CN110125551A CN110125551A CN201910430162.1A CN201910430162A CN110125551A CN 110125551 A CN110125551 A CN 110125551A CN 201910430162 A CN201910430162 A CN 201910430162A CN 110125551 A CN110125551 A CN 110125551A
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- mark
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- laser
- map file
- big radian
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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
-
- 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
- B23K26/362—Laser etching
-
- 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
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
Abstract
The present invention discloses a kind of 3D laser mark printing device of wall circular mark in big radian depth, including laser, focusing microscope group, galvanometer, mechanical device, positioning device and control system, wherein, workpiece is installed on the mechanical device, the mechanical device is connect with control system, for controlling the rotation of workpiece；The positioning device is connect with control system, for positioning to mark location；The galvanometer is connect with control system, for controlling position of the laser spot on workpiece X and Y-direction；The focusing microscope group is connect with control system, for controlling position of the laser spot on workpiece Z-axis direction；After the laser that the laser issues is focused by focusing microscope group, it projects by the galvanometer to workpiece, workpiece positioning is carried out by the positioning device grabbing workpiece outer profile, the rotation of workpiece is controlled by the mechanical device, completes the annular mark to workpiece.Invention additionally discloses a kind of 3D laser marking methods of wall circular mark in big radian depth.
Description
Technical field
The present invention relates to 3D laser marking technical fields, more particularly to carrying out big radian annular mark on work piece inner surface
3D laser marking method, the 3D laser mark printing device and method of wall circular mark in specially a kind of big radian depth.
Background technique
3D laser marking is to make the changed processing method of laser surface, using the laser of high-energy density to workpiece
Local irradiation is carried out, makes skin-material that physical change or chemical change occur, physical change includes vaporization, and chemical change includes hair
Raw color change, to leave permanent marker.Laser marking can mark various texts, map file, two dimensional code etc., and character is most
Small reachable micron amount.A series of optic deliveries are passed through by the laser that laser generates, it is poly- to carry out light beam eventually by optical mirror slip
Then high-energy light beam after focusing is deflected into the designated position of body surface to be processed, forms permanent trace by coke.
Traditional 2D laser marking can only generally carry out plane mark using the rear type of focusing within the specified range.3D
Laser marking machine uses advanced preceding clustered pattern, has had more dynamic focusing seat, by software control and mobile dynamic focus lamp,
Carrying out before laser is focused, which can be changed, expands, and changes the focal length of laser beam with this to realize the exact surface to height different objects
Focus processing.
Although 3D laser marking has been carried out, it still has certain defect in use.After 3D,
The mark that horizontal positioned cylinder outer surface carries out certain radian can once be completed and without deformation；If being carried out in cylinder inner surface
The mark of larger radian need to carry out the deflection of certain angle to workpiece, allow laser light since workpiece surface blocks laser
Mouth cylinder, which is radiated on inner surface, carries out mark.If mark map file is covered on tilted-putted cylinder depth inner wall, due to map file
It is pasted along the vertical direction, pastes that figure is arc-shaped in drum surface, and marking, which goes out map file, to be deformed, and is different in annular mark
The engagement of Duan Wenben can generate seam.Therefore have much room for improvement to this process.
Summary of the invention
In response to the problems existing in the prior art, the purpose of the present invention is to provide a kind of 3D of wall circular mark in big radian depth
Laser mark printing device and method solve the deformation of marking document and annular when big radian cylinder inner surface carries out annular mark and beat
The problem of marking different sections of text engagements, avoids the deformation that workpiece surface map file is covered in when tilted workpiece mark.
To achieve the above object, the technical solution adopted by the present invention is that:
The 3D laser mark printing device of wall circular mark in a kind of big radian depth, including laser, focusing microscope group, galvanometer, machine
Tool device, positioning device and control system, wherein workpiece is installed on the mechanical device, and the mechanical device and control are
System connection, for controlling the rotation of workpiece；The positioning device is connect with control system, for positioning to mark location；
The galvanometer is connect with control system, for controlling position of the laser spot on workpiece X and Y-direction；The focusing microscope group with
Control system connection, for controlling position of the laser spot on workpiece Z-axis direction；The laser that the laser issues passes through tune
It after burnt microscope group is focused, projects by the galvanometer to workpiece, is carried out by the positioning device grabbing workpiece outer profile
Workpiece positioning, the rotation of workpiece is controlled by the mechanical device, completes the annular mark to workpiece.
Further, the mechanical device, which is at an angle to the horizontal surface, puts.The work being mounted on the mechanical device
Part is also at an angle to the horizontal surface and puts.
Preferably, the big radian depth inner wall is cylindrical workpiece inner surface.
Preferably, the diameter of the cylindrical workpiece is greater than 4mm.
Preferably, the part side length of the positioning device grabbing workpiece opening, by the control system to mark area
Domain is positioned.
Preferably, the mechanical device carries out the rotation of axially and radially both direction, and axial-rotation controls workpiece rotation
To complete the whole circle mark of big radian depth inner wall, radial rotary controls the angle between workpiece and horizontal plane.
Further, the rotation angle of the mechanical device control workpiece axial-rotation, rotates the size and segmentation of angle
The length of map file is related.Angle is rotated by depending on the corresponding central angle of arc map file.
Preferably, the angle between the mechanical device and horizontal plane is less than 60 °.
Preferably, the focusing microscope group includes one group of first lens and the second lens parallel and be oppositely arranged, and described the
One lens are fixed, and second lens are mounted on Z axis and adjust on driver.
Further, it includes fixing seat and motor that the Z axis, which adjusts driver, and the motor is fixedly mounted on fixing seat
On, it is provided with strip guide rail in the fixing seat, sliding block is installed on the strip guide rail, microscope base is installed on the sliding block,
Second lens are embedded on the microscope base.
Further, the motor is connect with shaft, and driving device is connected in the shaft, and the driving device includes
First connecting rod and second connecting rod, described first connecting rod one end connect the other end with shaft and connect the second connecting rod, and described second
Connecting rod is connected with the slide block, for driving the sliding block to slidably reciprocate on the strip guide rail.
The 3D laser marking method of wall circular mark in a kind of big radian depth, comprising:
Steps for importing: S1 imports the 3D model and mark map file of workpiece；
S2, map file processing step: air exercise shelves of marking on a map are segmented, and are arranged by the camber line of certain radian segmentation map file
Column；
S3 is segmented the marking step of map file: pasting map file, places workpiece, workpiece positioning and workpiece mark；
S4, annular marking step: rotational workpieces repeat S3, until completing the mark of all segmentation map files.
Further, after importing the 3D model of workpiece, the position of workpiece 3D model is adjusted, makes focal plane in workpiece
On need the center of marking area.
Further, the big radian depth inner wall is cylindrical workpiece inner surface.The diameter of the cylindrical workpiece is greater than
4mm.The cylindrical workpiece, which is at an angle to the horizontal surface, puts.
Preferably, map file processing step further comprises: the mark map file for needing marking being divided into 3 sections or 4 sections, every Duan Junjin
Row arc process, the curved radian of mark map file are identical as the outer profile of workpiece.
Specifically, after arranging for segmentation map file by the camber line of certain radian, mark map file is in arc line shaped, in map file
Character is horizontal by being vertically arranged.
Preferably, after air exercise marks shelves progress segment processing on a map, segmentation map file does not include incomplete figure, text or two
The combination of person.It should be noted that, the complete map file for mark includes the combination of figure, text or the two herein.
Further, for the mark map file pasted, it is at least 6mm in the vertical depth of work piece inner surface.
Compared with prior art, the beneficial effects of the present invention are: the present invention passes through the mechanical device that connect with control system
Control workpiece rotation, mark location is positioned by the positioning device being connect with control system, by with control system
Position of the galvanometer control laser spot of connection on workpiece X and Y-direction, is controlled by the focusing microscope group connecting with control system
Position of the laser spot on workpiece Z-axis direction realizes the annular mark of big radian depth inner wall；Also, the present invention by pair
Mark map file is segmented, and carries out arc process respectively to each segmentation map file, so that treated, mark map file is in arc line shaped
And in map file then character carries out the mark of all segmentation map files horizontal by being vertically arranged by rotational workpieces, thus
While realizing the annular mark of big radian depth inner wall, solves the deformation that workpiece surface map file is covered in when tilted workpiece mark
Lead to the problem on deformation of mark map file, and the seam problems of annular mark difference section text engagement.
Detailed description of the invention
Fig. 1 is the structure of the 3D laser mark printing device of wall circular mark in a kind of big radian depth of the present invention according to embodiment
Schematic diagram.
Fig. 2 is the process of the 3D laser marking method of wall circular mark in a kind of big radian depth of the present invention according to embodiment
Schematic diagram.
Fig. 3 is the schematic diagram that big radian depth inner wall is covered on according to the processing rear arc map file of embodiment.
Fig. 4 is the structural schematic diagram according to the marking device of embodiment.
Fig. 5 is that the mark Contrast on effect of map file and map file after processing shows before the enterprising rower of workpiece is carved and handled according to embodiment
It is intended to.
Fig. 6 is the structural schematic diagram according to the focusing microscope group of embodiment.
Fig. 7 is the structural schematic diagram that driver is adjusted according to the Z axis of embodiment.
In figure: laser -1, focusing microscope group -2, galvanometer -3, positioning device -4, marking device -5, arc mark document -6,
Workpiece -7, mechanical device -8, map file effect -9 before marking is handled, map file effect -10, the first lens -21, the second after marking processing
Lens -22, Z axis adjust driver -11, pedestal -111, motor -112, first connecting rod -113, second connecting rod -114, sliding block -
115, strip guide rail -116, microscope base -117.
Specific embodiment
Below in conjunction with the attached drawing in the present invention, technical solution of the present invention is clearly and completely described, it is clear that
Described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the implementation in the present invention
Example, those of ordinary skill in the art's all other embodiment obtained under the conditions of not making creative work belong to
The scope of protection of the invention.
As shown in Figure 1, in a kind of big radian depth wall circular mark 3D laser mark printing device, including laser 1, focusing lens
Group 2, galvanometer 3, positioning device 4, marking device 5 and control system, the control system include computer system.As shown in figure 4,
The marking device 5 is made of mechanical device 8 and the mark object 7 being installed on mechanical device 8.The mechanical device 8 and control
System connection, controls the rotation of mark object 7；The positioning device 4 is connect with control system, is positioned to mark location；Institute
It states galvanometer 3 to connect with control system, controls position of the laser spot on the X and Y-direction of mark object 7；The focusing microscope group 2 with
Control system connection controls position of the laser spot in the Z-direction of mark object 7.The laser that the laser 1 issues passes through
After focusing microscope group 2 is focused, is injected on marking device 5 by the galvanometer 3 and mark is carried out to mark object 7, pass through control
The outer profile that the positioning device 4 grabs mark object 7 is positioned, and rotates mark object by controlling the mechanical device 8
7, complete the annular mark to mark object 7.
In specific implementation, the mechanical device 8, which is at an angle to the horizontal surface, puts, therefore, it is mounted on the mechanical dress
It sets the mark object 7 on 8 and is also at an angle to the horizontal surface and put.Preferably, the mechanical device 8 and horizontal plane
Between angle less than 60 °.
Specifically, the positioning device 4 grabs the part side length of 7 opening of mark object, is then fought each other by control system
Mark region is positioned, so that the marking area of mark object 7 is corresponding with the marking area of 3D model in computer system.
In specific implementation, the mechanical device 8 carries out the rotation of axially and radially both direction, and axial-rotation control is beaten
For the rotation of mark object 7 to complete the whole circle mark of big radian depth inner wall, radial rotary controls the angle between mark object 7 and horizontal plane.
As shown in fig. 6, the focusing microscope group 2 includes one group of parallel and first lens 21 being oppositely arranged and the second lens
22, first lens 21 are fixed, and the second lens 22 are mounted on Z axis and adjust on driver 11, adjust and drive in the Z axis
Second lens 22 can move left and right to adjust the laser to adjust the distance between two panels mirror and be finally reached under the drive of device 11
Position of the focus in the Z-direction of mark object 7, between first lens 21 and the second lens 22 when distance difference, finally
Focus is not also identical in the position of Z-direction after laser focuses.
Specifically, as shown in fig. 7, it includes fixing seat 111 and motor 112, the fixing seat that the Z axis, which adjusts driver 11,
Upper 111 are equipped with the motor 112 and strip guide rail 116, are equipped with sliding block 115 on strip guide rail 116, on the sliding block 115
Microscope base 117 is installed, second lens 22 are embedded on the microscope base 117.The motor 112 is connect with shaft, and described turn
First connecting rod 113 and second connecting rod 114 are connected on axis, the first connecting rod 113 and second connecting rod 114 are driving device, institute
It states 113 both ends of first connecting rod to be connected with the shaft and the second connecting rod 114 respectively, the second connecting rod 114 and the cunning
Block 115 connects, for driving the sliding block 115 to slidably reciprocate on the guide rail 116.
It is as follows that Z axis adjusts 11 course of work of driver: control system adjusts Z axis according to specific mark demand and drives first
Device 11 issues instruction and does corresponding running to start motor 112, drives first to connect by the shaft when motor 112 is rotated
Bar 113 rotates, and the rotation of first connecting rod 113 successively drives second connecting rod 114 and sliding block 115 mobile again, to reach described in drive
Second lens 22 are mobile, to change the distance between the first lens 21 and the second lens 22, are finally reached and change laser coke
Point is in position in the Z-axis direction.
The present invention also provides a kind of 3D laser marking methods of wall circular mark in big radian depth, comprising:
Steps for importing: S1 imports the 3D model and mark map file of workpiece；
S2, map file processing step: air exercise shelves of marking on a map are segmented, and are arranged by the camber line of certain radian segmentation map file
Column；
S3 is segmented the marking step of map file: pasting map file, places workpiece, workpiece positioning and workpiece mark；
S4, annular marking step: rotational workpieces repeat S3, until completing the mark of all segmentation map files.
As a kind of embodiment, the big radian depth inner wall is cylindrical workpiece inner surface.The cylindrical workpiece
Diameter is greater than 4mm.
Specifically, as shown in Fig. 2, the described method comprises the following steps:
S1: import the 3D model of workpiece: the control system includes computer system, is imported in the computer system
The 3D model of workpiece.
S2: it adjusts the 3D model of workpiece: adjusting the position of part model, need focal plane in marking area on workpiece
Heart position.
S3: it imports mark map file: the map file for needing mark is imported into the computer system.
S4: map file processing: being divided into 3-4 section for the map file of marking, and every section carries out arc process, the curved radian of map file and
The outer profile of workpiece is identical.Air exercise mark on a map shelves carry out segment processing after, segmentation map file do not include incomplete figure, text or
The combination of the two.It should be noted that, the complete map file for mark includes the combination of figure, text or the two herein.For
After segmentation map file is arranged by the camber line of certain radian, mark map file is in arc line shaped, and character is horizontal by vertical in map file
Arrangement.
S5: it pastes map file: the first segment map file for needing mark being pasted along the inner surface of 3D model, as shown in Figure 3.
For the mark map file pasted, it is at least 6mm in the vertical depth of work piece inner surface.
S6: it places workpiece: workpiece 7 corresponding with 3D model being placed on mechanical device 8, mechanical device 8 and horizontal plane
Putting at an angle.
S7: workpiece positioning: the outer profile air exercise target area of 4 grabbing workpiece 7 of positioning device is positioned, and guarantees work
Part 7 is corresponding with position in software.
S8: carry out mark to workpiece: the computer system controls laser by controlling the galvanometer 3 and focusing microscope group 2
Position of the focus on X, Y and Z-direction of workpiece 7, and mark goes out corresponding mark map file on the corresponding position of workpiece 7.
S9: rotational workpieces: the mechanical device 8 controls the rotation angle of workpiece 7 by control system.The mechanical device
The rotation angle of 8 control 7 axial-rotations of workpiece, the size for rotating angle are related with the segmentation length of map file.
S10: annular mark: the subsequent several sections of map files of marking, marking method is identical as S5-S9, until completing all sections of texts
Marking.
The mark Contrast on effect of map file is illustrated after being illustrated in figure 5 the map file before the enterprising rower of workpiece is carved and handled and handling
Figure, wherein 9 indicate the mark effect of map file before handling, the mark effect of map file after 10 expressions processing.As it can be seen that the application present invention
Method when carrying out the annular mark of big radian cylinder inner surface, be covered in workpiece surface when can be avoided tilted workpiece mark
The deformation of map file leads to the seam problems of deformation and the annular mark difference section text engagement of mark map file.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (10)
1. the 3D laser mark printing device of wall circular mark in a kind of big radian depth, which is characterized in that including laser, focusing lens
Group, galvanometer, mechanical device, positioning device and control system, wherein workpiece is installed on the mechanical device, the mechanical dress
It sets and is connect with control system, for controlling the rotation of workpiece；The positioning device is connect with control system, for mark location
It is positioned；The galvanometer is connect with control system, for controlling position of the laser spot on workpiece X and Y-direction；The tune
Burnt microscope group is connect with control system, for controlling position of the laser spot on workpiece Z-axis direction；What the laser issued swashs
After light is focused by focusing microscope group, project by the galvanometer to workpiece, by the positioning device grabbing workpiece outside
Profile carries out workpiece positioning, and the rotation of workpiece is controlled by the mechanical device, completes the annular mark to workpiece.
2. the 3D laser mark printing device of wall circular mark in big radian depth according to claim 1, which is characterized in that described
Big radian depth inner wall is cylindrical workpiece inner surface.
3. the 3D laser mark printing device of wall circular mark in big radian depth according to claim 2, which is characterized in that described
The diameter of cylindrical workpiece is greater than 4mm.
4. the 3D laser mark printing device of wall circular mark in big radian depth according to claim 1, which is characterized in that described
The part side length of positioning device grabbing workpiece opening, positions marking area by the control system.
5. the 3D laser mark printing device of wall circular mark in big radian depth according to claim 1, which is characterized in that described
Mechanical device carries out the rotation of axially and radially both direction, and it is whole to complete big radian depth inner wall that axial-rotation controls workpiece rotation
Mark is enclosed, radial rotary controls the angle between workpiece and horizontal plane.
6. the 3D laser mark printing device of wall circular mark in big radian depth according to claim 1, which is characterized in that described
Angle between mechanical device and horizontal plane is less than 60 °.
7. the 3D laser mark printing device of wall circular mark in big radian depth according to claim 1, which is characterized in that described
Focusing microscope group includes one group of first lens and the second lens parallel and be oppositely arranged, and first lens are fixed, described
Second lens are mounted on Z axis and adjust on driver.
8. the 3D laser marking method of wall circular mark in a kind of big radian depth, comprising:
Steps for importing: S1 imports the 3D model and mark map file of workpiece；
S2, map file processing step: air exercise shelves of marking on a map are segmented, and are arranged by the camber line of certain radian segmentation map file；
S3 is segmented the marking step of map file: pasting map file, places workpiece, workpiece positioning and workpiece mark；
S4, annular marking step: rotational workpieces repeat S3, until completing the mark of all segmentation map files.
9. the 3D laser marking method of wall circular mark in big radian depth according to claim 8, which is characterized in that map file
Processing step further comprises: the mark map file for needing marking being divided into 3 sections or 4 sections, every section carries out arc process, mark map file
Curved radian is identical as the outer profile of workpiece.
10. the 3D laser marking method of wall circular mark in big radian depth according to claim 9, which is characterized in that right
After mark map file carries out segment processing, segmentation map file does not include the combination of incomplete figure, text or the two.
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| CN201910430162.1A CN110125551A (en) | 2019-05-22 | 2019-05-22 | The 3D laser mark printing device and method of wall circular mark in a kind of big radian depth |
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| CN201910430162.1A CN110125551A (en) | 2019-05-22 | 2019-05-22 | The 3D laser mark printing device and method of wall circular mark in a kind of big radian depth |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111055010A (en) * | 2019-12-29 | 2020-04-24 | 中国科学院西安光学精密机械研究所 | Machining method for micro-nano structure of inner wall of large-width curved surface part |
| CN111215767A (en) * | 2019-11-25 | 2020-06-02 | 上海交通大学 | Device suitable for laser processing of cylindrical inner cavity structure |
| CN112743225A (en) * | 2019-10-29 | 2021-05-04 | 大族激光科技产业集团股份有限公司 | Laser processing method and system for non-cylindrical rotating part |
| CN112872599A (en) * | 2021-02-05 | 2021-06-01 | 苏州麦尔科唯激光机器人有限公司 | Laser deburring machining device and method for thin-wall workpiece |
| CN113146027A (en) * | 2020-01-17 | 2021-07-23 | 大族激光科技产业集团股份有限公司 | Laser processing method and system for inner wall of revolving body |
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