CN109967885A - A kind of laser processing and equipment - Google Patents
A kind of laser processing and equipment Download PDFInfo
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- CN109967885A CN109967885A CN201910159653.7A CN201910159653A CN109967885A CN 109967885 A CN109967885 A CN 109967885A CN 201910159653 A CN201910159653 A CN 201910159653A CN 109967885 A CN109967885 A CN 109967885A
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- laser
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- radium
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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
- B23K26/06—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
-
- 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
-
- 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
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Abstract
The present invention is suitable for field of laser processing, provides a kind of laser processing and equipment, this method comprises: the processing model of production sample；Workpiece is mounted on multiaxis workbench by fixture, adjusting multiaxis workbench makes the predeterminated position of workpiece be in radium-shine area；Adjust laser parameter, and control laser and contour sharp processing is carried out to workpiece, by workpiece it is radium-shine go out with the matched shape of processing model.Using method provided by the invention, it can be achieved that integrating the processing technology scheme of high-precision, high efficiency, low cost.
Description
Technical field
The invention belongs to field of laser processing more particularly to a kind of laser processing and equipment.
Background technique
Ceramic material have hardness is big, quality is fine and close, not easy to wear, masticatory efficiency is high, good luster, it is not easy to pollute discoloration etc.
Advantage is a kind of good artificial tooth making material.When using metal or ceramic material artificial tooth, current processing method is main
For machining and 3D printing.The case where machining process is easy to appear chipping during processing ceramic, Product Precision
It is not high, and since cutter loss is very fast, long processing time causes cost to improve, and obtains ceramic green using 3D printing technique
Afterwards, it is also necessary to qualified product can be just obtained by the intensity that high temperature sintering increases raw embryo, preparation section is complicated, efficiency compared with
It is low.Therefore, the prior art lacks a kind of processing technology for integrating high-precision, high efficiency, low cost.
Summary of the invention
The present invention provides a kind of laser processing and equipment, it is intended to which it is high-precision that solution lacks a kind of collection in the prior art
Degree, high efficiency, low cost are in the processing technology of one.
To achieve the above object, first aspect present invention provides a kind of laser processing, comprising:
Make the processing model of sample；
Workpiece is mounted on multiaxis workbench by fixture, adjusting the multiaxis workbench makes the default position of the workpiece
It sets in radium-shine area；
Laser parameter is adjusted, and controls laser and contour sharp processing is carried out to the workpiece, the workpiece is radium-shine out
With the matched shape of the processing model.
Preferably, the processing model of the production sample includes:
According to the shapes and sizes of sample, the threedimensional model of the sample is made；
The outline data of the threedimensional model is obtained, and establishes three-D profile model；
By processing model of the three-D profile mode input into mark software, as the sample.
Preferably, it is described adjust the multiaxis workbench predeterminated position of the workpiece made to be in radium-shine area include:
Position of the workpiece on the multiaxis workbench is adjusted, preprocessing position and the laser processing of the workpiece are made
Camera lens is opposite；
The focal length for adjusting the laser processing lens makes the laser of the laser processing lens output focus on the workpiece
Preprocessing position.
Preferably, the adjusting laser parameter includes:
Adjusting cutting speed is 600-2000 mm/second, and laser repetition rate is 50-500 kHz, and filling spacing is
0.005-0.1 millimeters, laser power range is 60-100%；
The wavelength of the laser of laser processing lens output is 1030-1064 nanometers, and pulsewidth is 5-25 picoseconds.
Preferably, the control laser includes: to the contour sharp processing of workpiece progress
Contour shape processing is carried out to the processing model, obtains the radium-shine model of multilayer；
Control laser trend, by the workpiece successively it is radium-shine go out with the shape of corresponding radium-shine Model Matching.
Preferably, the method also includes utilizing the dust generated in dust-extraction unit abstraction process.
Second aspect of the present invention provides a kind of laser process equipment, is applied in above-mentioned laser processing, described to swash
Light process equipment includes:
Modeling apparatus, for making the processing model of sample；
Laser, for emitting laser；
Location of workpiece regulating device, for installing workpiece, and the predeterminated position for adjusting the workpiece is in radium-shine area；
Laser processing lens, for carrying out contour sharp processing to the workpiece according to the processing model of sample, by institute
State workpiece it is radium-shine go out with the matched shape of the processing model.
Preferably, the laser process equipment further includes dust-extraction unit, and the dust-extraction unit is for extracting in process
The dust of generation.
Preferably, the location of workpiece regulating device includes fixture and multiaxis workbench, and the fixture is used for the work
Part is mounted on the multiaxis workbench；
The multiaxis workbench includes the first driving assembly and the second driving assembly；
Wherein, first driving assembly is for controlling the workpiece translational motion, lifting, and second driving assembly is for controlling
Make the workpiece rotation.
Preferably, the laser processing lens include:
Condenser lens, for being focused to the laser from the laser；
Galvanometer system, for controlling laser in the trend of the workpiece surface；
Parameter adjustment control, for adjusting laser parameter and focal length.
Compared with prior art, the present invention beneficial effect is: 1, laser machining not contact workpiece, will not be caused to workpiece
Mechanical presses or mechanical stress will not cause workpiece chipping；
2, the cost laser machined is low, and laser is easily focused, is oriented to, so that the machining accuracy of workpiece is high；
3, according to the size and shape of processing model editor's sample of sample, and workpiece is arbitrarily adjusted by multiaxis workbench
Working position, realize automation Continuous maching.
Detailed description of the invention
The technical solution provided in order to illustrate the embodiments of the present invention more clearly will make below to required in the present invention
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those skilled in the art, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is the flow chart for the laser processing that first embodiment of the invention provides；
Fig. 2 is the flow chart for the laser processing that second embodiment of the invention provides；
Fig. 3 is the structural schematic diagram for the laser process equipment that third embodiment of the invention provides.
Specific embodiment
To enable the purpose of the present invention, feature, advantage more obvious and understandable, implement below in conjunction with the present invention
Attached drawing in example, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment
Only a part of the embodiment of the present invention, and not all embodiments.Based on the embodiments of the present invention, those skilled in the art exist
Every other embodiment obtained under the premise of creative work is not made, shall fall within the protection scope of the present invention.
Referring to Fig. 1, the flow chart of the laser processing provided for first embodiment of the invention.
S100, the processing model for making sample.
The processing model of sample is the skeleton pattern obtained according to real data such as shape, the sizes of sample, utilizes the wheel
Wide model carries out laser marking to workpiece.
S200, workpiece is mounted on multiaxis workbench by fixture, adjusting multiaxis workbench makes the predeterminated position of workpiece
In radium-shine area.
The fixture of workpiece is special implement according to the production of the shape and size of workpiece, for clamping workpiece.Workpiece is logical
It crosses its special fixture to be mounted on multiaxis workbench, which includes multiple kinematic axis and its driving assembly, driving group
The workpiece that part is used to that fixture and the fixture to be driven to clamp realizes the movement of multiple freedom degrees, to realize workpiece in any space bit
Set the accurate positioning with angle.
It include laser and condenser lens in laser process equipment, after the laser of laser emitting is focused by condenser lens
Mark laser is formed, the kinematic axis by adjusting multiaxis workbench makes the preprocessing position of workpiece be in the focus of amasthenic lens
Place, mark laser form radium-shine area in the preprocessing position of workpiece.Using the high-energy density after focusing laser to workpiece into
Row mark leaves the etching marking by the way that coulomb explosion effect occurs on the skin-material of the workpiece in radium-shine area.
S300, adjust laser parameter, and control laser and contour sharp processing is carried out to workpiece, by workpiece it is radium-shine go out with add
The shape of work Model Matching.
The parameters such as cutting speed, laser repetition rate, power due to laser are adjustable, so that the efficiency of laser processing
It is controllable with the final shape of workpiece.Contour sharp processing is really a kind of layer of cutting processing method, along the contour of outer surface of workpiece
It is processed, after the radium-shine shape at needs in the surface layer of workpiece, is given to the greatest extent using the move mode of layer to layer, process one layer
Afterwards, internal layer is entered to continue to process, finally by the contour machining of workpiece at the matched shape of processing model.
In embodiments of the present invention, in a first aspect, due to laser machining not contact workpiece machinery will not be caused to workpiece
Extruding or mechanical stress, therefore can avoid workpiece and the case where chipping occur.The cost of second aspect, laser processing is low, and laser
It easily focuses, guiding, so that the machining accuracy of workpiece is high.The third aspect, the method provided according to the present invention, is compiled by processing model
The size and shape of sample is collected, and arbitrarily adjusts the Working position of workpiece by multiaxis workbench, realizes automation Continuous maching.
Referring to Fig. 2, the flow chart of the laser processing provided for second embodiment of the invention.
S101, the shapes and sizes according to sample, make the threedimensional model of sample.
S102, the outline data for obtaining threedimensional model, and establish three-D profile model.
S103, the processing model by three-D profile mode input into mark software, as sample.
When illustratively, using method processing ceramic artificial tooth provided by the invention, carried out at data according to the shape of artificial tooth
It manages, after the profile that the ceramic skeleton pattern processed is removed to artificial tooth, remaining part is as processing wheel in ceramic skeleton pattern
Wide model, the machining profile model as artificial tooth processing model and be input in 3D mark software.
The position of S201, adjustment workpiece on multiaxis workbench, makes preprocessing position and the laser processing lens pair of workpiece
It answers.
Multiaxis workbench is accurately positioned the working position of workpiece for controlling workpiece translational motion, lifting and rotation.
Illustratively, if workpieces processing is cuboid or cube, workbench is driven using five axis.Five axis drives work
It include X-axis, Y-axis and the Z axis and rotary shaft A axis and C axis for constituting cartesian coordinate system as platform, totally five kinematic axis, wherein X
Axis is responsible for moving in left-right direction, and Y-axis is responsible for moving along the longitudinal direction, and Z axis is responsible for vertically elevating movement, A axis and two, C axis
Rotary shaft is vertically arranged, and can carry out 360 degree of rotary motion, drives workbench to realize workpiece in five freedom degrees by five axis
Movement, is accurately positioned the machined surface of workpiece.
S202, the focal length for adjusting laser processing lens, make laser focus on the preprocessing position of workpiece.
By S201 and S202, the preprocessing position for adjusting workpiece is opposite with laser processing lens, and adjusts laser processing
The focal length of camera lens makes the preprocessing position of workpiece be in the focal point of laser processing lens, the processing being input in mark software
The preprocessing location matches of model and workpiece, to form radium-shine area on the surface of workpiece.After completing the processing of radium-shine area, control
Multiaxis workbench is mobile by workpiece or rotates, and continues to process next radium-shine area.
Preferably, the cutting speed adjusted in laser parameter in S300 is 600-2000 mm/second, laser repetition rate is
50-500 kHz, filling spacing are 0.005-0.1 millimeters, and laser power range is 60-100%.
The wavelength for adjusting the laser of laser processing lens output is 1030-1064 nanometers or 355 nanometers, and pulsewidth is 5-25 skin
Second.
S301, contour shape processing is carried out to processing model, obtains the radium-shine model of multilayer.
Contour shape processing is carried out to the processing model of input in mark software, what acquisition was made of the radium-shine model of multilayer
Threedimensional model.
S302, control laser trend, by workpiece successively it is radium-shine go out with the shape of corresponding radium-shine Model Matching.
The trend that laser is controlled by galvanometer system carries out contour sharp processing to workpiece, along the contour of outer surface of workpiece
Line is processed, then carries out the feeding of Z-direction at after the shape of corresponding radium-shine Model Matching for the surface layer of workpiece is radium-shine,
Next layer is continued to process, until by the contour machining of workpiece at the matched shape of processing model.
S400, the dust generated in dust-extraction unit abstraction process is utilized.
When processing artificial tooth, the material of workpiece generally includes feldspathic ceramics, glass ceramics or zirconia ceramics etc., passes through
Dust-extraction unit provides the high-speed flow coaxial with laser beam, extracts the ceramic particle and dust object generated in laser processing procedure
Matter avoids environmental pollution.
Referring to Fig. 3, the structural schematic diagram of the laser equipment provided for third embodiment of the invention.
As shown in figure 3, the laser process equipment includes:
Modeling apparatus 1, for making the processing model of sample.
Modeling apparatus 1 is used for the size and shape according to sample, establishes the threedimensional model of sample, and obtain three-dimensional mould
The processing model of the outline data production sample of type, which is input in mark software.Modeling apparatus 1 is also used
In carrying out contour shape processing to processing model by mark software, the threedimensional model being made of the radium-shine model of multilayer is obtained.
Laser 2, for emitting laser.
Location of workpiece regulating device 3, for installing workpiece, and the predeterminated position for adjusting workpiece is in radium-shine area.
Laser processing lens 4, for carrying out contour sharp processing to workpiece according to the processing model of sample, by workpiece radium
It projects and the matched shape of processing model.
Further, laser process equipment further includes dust-extraction unit 5, and dust-extraction unit 5 is generated for extracting in process
Dust.
Further, location of workpiece regulating device 3 includes fixture and multiaxis workbench.
Fixture is used to workpiece being mounted on multiaxis workbench.Multiaxis workbench is for controlling workpiece translational motion, lifting and rotation
Turn, the working position of workpiece is accurately positioned.
Specifically, multiaxis workbench includes the first driving assembly and the second driving assembly.Wherein, the first driving assembly is used for
Workpiece translational motion, lifting are controlled, the second driving assembly is for controlling workpiece rotation.
Illustratively, if workpieces processing is cuboid or cube, workbench is driven using five axis.Five axis drives work
It include X-axis, Y-axis and the Z axis and rotary shaft A axis and C axis for constituting cartesian coordinate system as platform, totally five kinematic axis, wherein X
Axis is responsible for moving in left-right direction, and Y-axis is responsible for moving along the longitudinal direction, and Z axis is responsible for vertically elevating movement, A axis and two, C axis
Rotary shaft is vertically arranged, and can carry out 360 degree of rotary motion, realizes workpiece in the fortune of five freedom degrees by five axis workbench
It is dynamic, the machined surface of workpiece is accurately positioned.
First driving assembly of five axis driving workbench includes the X-axis for being moved respectively along X-axis, Y-axis and Z axis
Actuator, Y-axis actuator and Z axis actuator, the first driving assembly are used to control workpiece translational motion, are elevated to any position spatially
It sets.Second driving assembly includes the A axis rotary power part and C axis rotary power part on Z axis actuator, C axis rotary power
Part can drive A axis rotary power part to rotate, and the second driving assembly is for controlling workpiece rotation to any angle.
Further, laser processing lens 4 include:
Condenser lens 41, for being focused to the laser from laser 2.
Galvanometer system 42, for controlling laser in the trend of workpiece surface.
Parameter adjustment control 43, for adjusting laser parameter and laser focal.
The preprocessing position that workpiece is adjusted on multiaxis workbench is opposite with laser processing lens, and is filled by parameter regulation
The focal length for setting 43 adjusting condenser lenses 41 makes the preprocessing position of workpiece be in the focal point of condenser lens 41, thus in workpiece
Surface form radium-shine area.Galvanometer system 42 controls laser in the trend of workpiece surface, realizes contour sharp processing.
The above are to a kind of description of laser processing and laser process equipment provided in an embodiment of the present invention, technology people
The thought of member according to an embodiment of the present invention, there will be changes in the specific implementation manner and application range, all in the present invention
Spirit and principle within made any modifications, equivalent replacements, and improvements etc., should be included in protection scope of the present invention it
It is interior, therefore the contents of this specification are not to be construed as limiting the invention.
Claims (10)
1. a kind of laser processing, which is characterized in that the described method includes:
Make the processing model of sample；
Workpiece is mounted on multiaxis workbench by fixture, adjusting the multiaxis workbench makes the predetermined position of the workpiece
In radium-shine area；
Adjust laser parameter, and control laser and contour sharp processing is carried out to the workpiece, by the workpiece it is radium-shine go out with institute
State the matched shape of processing model.
2. laser processing according to claim 1, which is characterized in that it is described production sample processing model include:
According to the shapes and sizes of sample, the threedimensional model of the sample is made；
The outline data of the threedimensional model is obtained, and establishes three-D profile model；
Processing model by the three-D profile mode input to mark software, as the sample.
3. laser processing according to claim 1, which is characterized in that the adjusting multiaxis workbench makes described
The predeterminated position of workpiece is in radium-shine area
Position of the workpiece on the multiaxis workbench is adjusted, preprocessing position and the laser processing lens of the workpiece are made
It is corresponding；
The focal length for adjusting the laser processing lens makes the laser of the laser processing lens output focus on the pre- of the workpiece
Working position.
4. laser processing according to claim 1, which is characterized in that described to adjust the laser parameter and include:
Adjusting cutting speed is 600-2000 mm/second, and laser repetition rate is 50-500 kHz, and filling spacing is 0.005-
0.1 millimeter, laser power range is 60-100%；
The wavelength of the laser of laser processing lens output is 1030-1064 nanometers, and pulsewidth is 5-25 picoseconds.
5. laser processing according to claim 1, which is characterized in that the control laser carries out the workpiece etc.
High sharp processing includes:
Contour shape processing is carried out to the processing model, obtains the radium-shine model of multilayer；
Control laser trend, by the workpiece successively it is radium-shine go out with the shape of corresponding radium-shine Model Matching.
6. laser processing according to claim 1, which is characterized in that the method also includes being taken out using dust-extraction unit
Except the dust generated in process.
7. a kind of laser process equipment is applied to such as laser processing as claimed in any one of claims 1 to 6, feature and exists
In the laser process equipment includes:
Modeling apparatus, for making the processing model of sample；
Laser, for emitting laser；
Location of workpiece regulating device, for installing workpiece, and the predeterminated position for adjusting the workpiece is in radium-shine area；
Laser processing lens, for carrying out contour sharp processing to the workpiece according to the processing model of the sample, by institute
State workpiece it is radium-shine go out with the matched shape of the processing model.
8. laser process equipment according to claim 7, which is characterized in that the laser process equipment further includes dedusting dress
It sets, the dust-extraction unit is for extracting the dust generated in process.
9. laser process equipment according to claim 7, which is characterized in that the location of workpiece regulating device includes fixture
With multiaxis workbench, the fixture is used to the workpiece being installed on the multiaxis workbench；
The multiaxis workbench includes the first driving assembly and the second driving assembly；
Wherein, first driving assembly is for controlling the workpiece translational motion, lifting, and second driving assembly is for controlling institute
State workpiece rotation.
10. laser process equipment according to claim 7, which is characterized in that the laser processing lens include:
Condenser lens, for being focused to the laser from the laser；
Galvanometer system, for controlling laser in the trend of the workpiece surface；
Parameter adjustment control, for adjusting laser parameter and focal length.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910159653.7A CN109967885A (en) | 2019-03-04 | 2019-03-04 | A kind of laser processing and equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910159653.7A CN109967885A (en) | 2019-03-04 | 2019-03-04 | A kind of laser processing and equipment |
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| CN109967885A true CN109967885A (en) | 2019-07-05 |
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| CN201910159653.7A Pending CN109967885A (en) | 2019-03-04 | 2019-03-04 | A kind of laser processing and equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113119623A (en) * | 2020-01-16 | 2021-07-16 | 大族激光科技产业集团股份有限公司 | Laser processing method of attached icon |
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| CN108817655A (en) * | 2018-08-14 | 2018-11-16 | 大族激光科技产业集团股份有限公司 | A kind of laser processing and its laser-processing system of ceramics mat surface |
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| US20040106087A1 (en) * | 2002-04-14 | 2004-06-03 | Paul Weigl | Method for automated production of ceramic dental prostheses |
| CN104842076A (en) * | 2015-05-25 | 2015-08-19 | 山东沪鸽口腔材料股份有限公司 | Removable denture laser processing device and processing method thereof |
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Application publication date: 20190705 |