CN205362670U - Metal laser 3D prints tooth prosthesis device - Google Patents
Metal laser 3D prints tooth prosthesis device Download PDFInfo
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- CN205362670U CN205362670U CN201521140613.1U CN201521140613U CN205362670U CN 205362670 U CN205362670 U CN 205362670U CN 201521140613 U CN201521140613 U CN 201521140613U CN 205362670 U CN205362670 U CN 205362670U
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- laser
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- dental case
- beam expanding
- control circuit
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The utility model discloses a metal laser 3D prints tooth prosthesis device, the device including control circuit, laser instrument, automatically zoom beam expanding lens, remove burden lens unit, optics focus unit and be used for placing the machining plane of tooth prosthesis, the laser beam that the laser instrument is launched loops through automatically zoom beam expanding lens, removal burden lens unit and optics focus unit and focuses on on machining plane's tooth prosthesis, control circuit bears lens unit and optics focus unit connection with automatically zoom beam expanding lens, removal respectively. The utility model discloses an expand the effect that the control of restrainting the multiple reaches control laser spot size to the light beam to can utilize not the laser facula of equidimension to print the different positions of part, realize nimble control, and promote the print speed by a wide margin when guaranteeing the printing precision. The utility model relates to a but metal laser 3D prints tooth prosthesis device wide application in vibration material disk field.
Description
Technical field
This utility model relates to increasing material and manufactures field, and especially a kind of metal laser 3D prints dental case device.
Background technology
Increase material manufacture and be commonly called as again 3D printing, be the technology of the method manufacture entity component successively added up by CAD design data acquisition material, remove (machining) technology relative to traditional material, be the manufacture method of a kind of " from bottom to top " material addition.Comparing traditional manufacturing technology, increasing material manufacture has can the advantage such as molding complicated shape part, high, the saving material of formed precision.
Metal current increases material manufacturing technology and has wide application space at medical domain, and wherein dental prosthesis is the product that current industrialization is best.But in print procedure, dental prosthesis exists the bad control of marginal dimension, surface is the problem such as rougher still.
Adopting laser is the forming method that current precision is the highest as the material manufacturing technology that increases of thermal source, and positioning precision can reach 2 μm.In order to obtain the Laser Processing hot spot that energy is concentrated, the laser beam emitted from laser instrument requires over the synergism of beam expanding lens, focus lamp and galvanometer, is the only small laser facula of a diameter by laser beam focus.
In current laser gain material manufacturing technology, mirror-vibrating laser scanning is widely used a kind of scan mode, it has at a high speed, in high precision, the advantage such as stable performance.But what this laser scanning methods adopted is constant focus method, in the course of processing when laser beam is guided by scanning galvanometer to the direction away from working range center, distance from camera lens to workpiece adds, causing not focusing at the position laser beam away from workpiece centre, this focusing deviation has had a strong impact on scanning accuracy and crudy.
A lot of very big laser-processing systems adopt F-θ focus lamp to overcome the pincushion distortion problem in vibration mirror scanning at present, but after adopting F-θ mirror, owing to being subject to the light beam aperture restriction of the restriction of camera lens size and scanning galvanometer, sweep limits is appreciably restricted, and F-θ mirror cost is higher.
And in order to accelerate the process velocity of personalized dental case part, and improve crudy and the precision of part, laser scanning process needs the exterior contour to part adopt different laser facula sizes to be processed with internal entity, but current laser gain material manufactures equipment and cannot meet this requirement.
Utility model content
In order to solve above-mentioned technical problem, the purpose of this utility model is: providing a kind of metal laser 3D to print dental case device, its focal beam spot size is adjustable, it is adaptable to the printing at different part positions, improves performance and the precision of forming part.
This utility model be the technical scheme is that a kind of metal laser 3D prints dental case device, include control circuit, laser instrument, autozoom beam expanding lens, mobile minus lens unit, optical focusing unit and for placing the processing plane of dental case, the laser beam that described laser instrument is launched passes sequentially through autozoom beam expanding lens, mobile minus lens unit and optical focusing unit and focuses on the dental case of processing plane, and described control circuit is connected with autozoom beam expanding lens, mobile minus lens unit and optical focusing unit respectively.
Further, described mobile minus lens unit includes mobile minus lens, servomotor, fork, slide block and guide rail, described mobile minus lens is fixed on slide block, and described servomotor drives slide block to move on guide rail by fork, and the control end of described servomotor is connected with control circuit.
Further, described guide rail two ends are additionally provided with guide rail limited block.
Further, described optical focusing unit includes prefocusing mirror, galvanometer and rear focus lamp, and the control end of described galvanometer is connected with control circuit, described laser beam by after prefocusing mirror by vibration mirror reflected to rear focus lamp and focus on the dental case of processing plane.
Further, the control end of described autozoom beam expanding lens is connected with control circuit.
Further, the multiple that freely expands of described autozoom beam expanding lens is 2-8 times.
Further, described laser instrument is optical fiber laser.
The beneficial effects of the utility model are: this device by reaching to control the effect of laser facula size to the control of beam expander multiple, such that it is able to utilize different size of laser facula that the different parts of part is printed, realize controlling flexibly, and print speed is substantially improved while ensureing printing precision；Meanwhile, this utility model adopts optical focusing device that laser facula carries out vernier focusing, improves the energy density of laser facula, overcomes the pincushion distortion problem focusing vibration mirror scanning and sweep limits restriction.
Accompanying drawing explanation
Fig. 1 is this utility model apparatus structure schematic diagram；
Fig. 2 is dental case cross-sectional view in this utility model embodiment.
In figure: 1, control circuit；2, laser instrument；3, autozoom beam expanding lens；4, minus lens is moved；5, prefocusing mirror；6, galvanometer；7, rear focus lamp；8, focused laser beam；9, processing plane；10, servomotor；11, fork；12, slide block；13, guide rail；14, guide rail limited block；15, in-profile；16, exterior contour；17, entity part.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described further:
With reference to Fig. 1, a kind of metal laser 3D prints dental case device, include control circuit, laser instrument, autozoom beam expanding lens, mobile minus lens unit, optical focusing unit and for placing the processing plane of dental case, the laser beam that described laser instrument is launched passes sequentially through autozoom beam expanding lens, mobile minus lens unit and optical focusing unit and focuses on the dental case of processing plane, and described control circuit is connected with autozoom beam expanding lens, mobile minus lens unit and optical focusing unit respectively.
Control circuit can not only control the deflection of galvanometer and the movement of mobile minus lens in scanning process, it is achieved the dynamic focusing of scanning process, moreover it is possible to control the amplification of autozoom beam expanding lens, thus changing the size of focal beam spot.
It is further used as preferred embodiment, described mobile minus lens unit includes mobile minus lens, servomotor, fork, slide block and guide rail, described mobile minus lens is fixed on slide block, described servomotor drives slide block to move on guide rail by fork, and the control end of described servomotor is connected with control circuit.
Control circuit gets the tilt value of galvanometer, and calculated convergence error value is passed to the driver of servomotor, servomotor is driven to drive fork to deflect, the deflection of fork is converted into slide block rectilinear motion on guide rail, thus driving mobile minus lens to move linearly in light path, finally achieve the optical focus of laser beam.By the effect of optical focus, substantially increasing the sweep limits of laser beam, sweep limits is increased to 250 × 250mm from the 100 × 100mm focusing scanning.
More big according to expanding multiple, the rule that laser facula after focusing is more little, control circuit controls the multiple of autozoom beam expanding lens, by cooperating with focus lamp group, realize adopting different focussed laser spot, described focussed laser spot diameter continuously adjustabe between 30-200 μm in different scanning areas.
In motor process, mobile minus lens remains vertical with optical axis and that optical axis is by lens photocentre.
Being further used as preferred embodiment, described guide rail two ends are additionally provided with guide rail limited block, for limiting the amplitude of fluctuation of slide block.
It is further used as preferred embodiment, described optical focusing unit includes prefocusing mirror, galvanometer and rear focus lamp, the control end of described galvanometer is connected with control circuit, described laser beam by after prefocusing mirror by vibration mirror reflected to rear focus lamp and focus on the dental case of processing plane.
Described in optical focusing unit, burn out lens for avoiding light beam to focus on, improve calibration result, prefocusing mirror, rear focus lamp and other convex lens all select planoconvex lens.Described galvanometer is scanned by deflecting guided laser bundle.
Being further used as preferred embodiment, the scanning angle range of deflection of described galvanometer is ± 25 °.
Being further used as preferred embodiment, the control end of described autozoom beam expanding lens is connected with control circuit.
Being further used as preferred embodiment, the multiple that freely expands of described autozoom beam expanding lens is 2-8 times.
Being further used as preferred embodiment, described laser instrument is optical fiber laser.
The optical maser wavelength of described optical fiber laser is 1090nm, and laser power 50-500W is adjustable, beam quality M2< 1.1.
With reference to Fig. 2, specific embodiment of the utility model is described, mainly includes following two step:
A, increase autozoom beam expanding lens expand multiple, utilize the inside and outside profile of the laser printing dental case after focusing on；
It is illustrated in figure 2 dental case cross-sectional view, when this Rotating fields is printed by this utility model device, hot spot initially with diameter 50 μm is scanned in-profile and exterior contour, and now the multiple of autozoom beam expanding lens is set to 4 times, and the laser power of laser instrument is set to 50-100W；For ensureing the intensity of part (dental case), can respectively in-profile and exterior contour be scanned repeatedly.
B, reduce autozoom beam expanding lens expand multiple, utilize the entity part between the inside and outside profile of the laser printing dental case after focusing on
After completing aforesaid operations, this device is by the size regulating raising focal beam spot of optical zoom unit and autozoom beam expanding lens, such as the multiple that expands of autozoom beam expanding lens is set to 2 times, the laser power of laser instrument is set to 200W-400W, then the entity part between internal and exterior contour is scanned operation.
It is further used as preferred embodiment, for inside and outside profile in described step A, is utilized respectively the scanning of the laser limes marginis after focusing at least twice, by the operation in above-mentioned steps A repeatedly.
It is further used as preferred embodiment, laser power is also adjusted by described step A and step B, make the power that laser applies in inside and outside profile, entity part identical.
In above-mentioned steps, when printing the inside and outside profile of dental case, the laser power of laser instrument is set to 50-100W, and when printing the entity part of dental case, owing to the multiple that expands of autozoom beam expanding lens is reduced to 2 times, therefore correspondingly the laser power of laser instrument is set to 200W-400W, ensures that with this energy density of laser facula is relatively stable, thus ensureing that the material of printing objects is uniform, precision is high.
It is above of the present utility model preferably enforcement has been illustrated, but this utility model is created and is not limited to described embodiment, except this utility model apparatus and method are applied to dental case, also the manufacture of other parts can be applied to, for instance machine components, other irregularly shaped objects etc.；Those of ordinary skill in the art can also make all equivalents or replacement under the premise without prejudice to this utility model spirit, and these equivalent deformation or replacement are all contained in the application claim limited range.
Claims (7)
1. a metal laser 3D prints dental case device, it is characterized in that: include control circuit, laser instrument, autozoom beam expanding lens, mobile minus lens unit, optical focusing unit and for placing the processing plane of dental case, the laser beam that described laser instrument is launched passes sequentially through autozoom beam expanding lens, mobile minus lens unit and optical focusing unit and focuses on the dental case of processing plane, and described control circuit is connected with autozoom beam expanding lens, mobile minus lens unit and optical focusing unit respectively.
2. a kind of metal laser 3D according to claim 1 prints dental case device, it is characterized in that: described mobile minus lens unit includes mobile minus lens, servomotor, fork, slide block and guide rail, described mobile minus lens is fixed on slide block, described servomotor drives slide block to move on guide rail by fork, and the control end of described servomotor is connected with control circuit.
3. a kind of metal laser 3D according to claim 2 prints dental case device, it is characterised in that: described guide rail two ends are additionally provided with guide rail limited block.
4. a kind of metal laser 3D according to claim 1 prints dental case device, it is characterized in that: described optical focusing unit includes prefocusing mirror, galvanometer and rear focus lamp, the control end of described galvanometer is connected with control circuit, described laser beam by after prefocusing mirror by vibration mirror reflected to rear focus lamp and focus on the dental case of processing plane.
5. a kind of metal laser 3D according to claim 1 prints dental case device, it is characterised in that: the control end of described autozoom beam expanding lens is connected with control circuit.
6. a kind of metal laser 3D according to claim 1 prints dental case device, it is characterised in that: the multiple that freely expands of described autozoom beam expanding lens is 2-8 times.
7. a kind of metal laser 3D according to claim 1 prints dental case device, it is characterised in that: described laser instrument is optical fiber laser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521140613.1U CN205362670U (en) | 2015-12-30 | 2015-12-30 | Metal laser 3D prints tooth prosthesis device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521140613.1U CN205362670U (en) | 2015-12-30 | 2015-12-30 | Metal laser 3D prints tooth prosthesis device |
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| CN205362670U true CN205362670U (en) | 2016-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201521140613.1U Active CN205362670U (en) | 2015-12-30 | 2015-12-30 | Metal laser 3D prints tooth prosthesis device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105478767A (en) * | 2015-12-30 | 2016-04-13 | 广州瑞通激光科技有限公司 | Device and method for obtaining metal dental prosthesis through laser 3D printing |
| CN108941896A (en) * | 2018-07-06 | 2018-12-07 | 武汉光谷航天三江激光产业技术研究院有限公司 | Laser focusing device and laser system |
-
2015
- 2015-12-30 CN CN201521140613.1U patent/CN205362670U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105478767A (en) * | 2015-12-30 | 2016-04-13 | 广州瑞通激光科技有限公司 | Device and method for obtaining metal dental prosthesis through laser 3D printing |
| CN108941896A (en) * | 2018-07-06 | 2018-12-07 | 武汉光谷航天三江激光产业技术研究院有限公司 | Laser focusing device and laser system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171226 Address after: 510320 Guangdong Guangzhou City, Guangzhou City, Guangzhou international biologic Island, No. 1, No. 1, R & D B area 1 Patentee after: Guangzhou Riton Biomaterial Co., Ltd. Address before: 510378 Guangdong Guangzhou city Liwan District Hua Di Road South Nanhai industrial and Trade Zone B Patentee before: Guangzhou Riton Laser Co., Ltd. |
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| TR01 | Transfer of patent right |