CN104972123A - 3D printing method for molecular structure model and 3D printer - Google Patents
3D printing method for molecular structure model and 3D printer Download PDFInfo
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- CN104972123A CN104972123A CN201510267282.6A CN201510267282A CN104972123A CN 104972123 A CN104972123 A CN 104972123A CN 201510267282 A CN201510267282 A CN 201510267282A CN 104972123 A CN104972123 A CN 104972123A
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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 invention provides a 3D printing method for a molecular structure model and a 3D printer. The 3D printing method comprises the following steps: building a three-dimensional model of a target molecular structure model; processing the three-dimensional model to form a plurality of layers of two-dimensional patterns; calculating the laser scanning path and the use parameters of each layer of the two-dimensional patterns; and controlling focusing laser to scan the corresponding positions of each layer of the target molecular structure model on a 3D printer according to the laser scanning path to form the target molecular structure model. The 3D printer comprises a processing platform, wherein a powder spreading unit is arranged above the processing platform and used for spreading material powder on the processing platform; and a laser transmitter capable of transmitting laser beams is arranged above the powder spreading unit. The invention overcomes the shortcoming of poor structural stability caused when the traditional ball and stick method is adopted to splice a molecular model, and meanwhile, makes up for the deficiencies of the traditional machining process. Therefore, the molecular structure model manufacturing efficiency is improved, and the molecular structure model manufacturing cost is lowered.
Description
Technical field
The present invention relates to a kind of processing method of molecular structure model, particularly relate to a kind of 3D printing shaping method and printing shaping machine of molecular structure model.
Background technology
3D printing technique is also known as increasing material manufacturing technology, different from the method for traditional removal materials processing, and it is that mode by successively piling up material directly manufactures a product.3D printing technique utilizes three-dimensional CAD model can produce parts with complex structures fast and accurately on an equipment, thus realizes " freely manufacturing ", solves traditional handicraft difficulty and processes the limitation maybe cannot processed, and substantially reduce the process-cycle.
At present, 3D printing technique has been widely used in the many aspects such as industrial design and Medical Devices, 3D printing technique is mainly used in the various fields such as automobile, space flight military project, household electrical appliances, boats and ships, medical treatment, video display, food and intention, 3D printing technique development also saves labor cost, becomes the focal point of many goods manufacturer.
Traditional molecular structure model processing method is single, is spliced by mallet, and process is loaded down with trivial details and stability is not high; And existing 3D printing type, general process is all comparatively loaded down with trivial details, cost is higher, and the Product Precision produced is lower, and its structural molecule model manufactured is also comparatively single.
Summary of the invention
In order to overcome the above problems, the invention provides a kind of 3D printing shaping method of molecular structure model and a kind of 3D printing shaping machine, it can manufacture different molecular structure models according to the chemical bond between target molecular structure Model Molecule, overcome the defect adopting the structural stability of conventional stick method splicing molecular model bad, compensate for the deficiency of conventional machine processing technology simultaneously, improve the make efficiency of molecular structure model model, reduce cost of manufacture.
To achieve these goals, the invention provides a kind of 3D printing shaping method of molecular structure model, comprise the following steps: the threedimensional model of establishing target molecular structure model; Threedimensional model process is formed multilayer two-dimension figure; Calculate laser beam scan path and the operation parameter of every one deck X-Y scheme; Control laser focusing to scan on 3D printing shaping machine target molecular structure model ground floor relevant position according to laser beam scan path; Repetitive controller laser focusing scans the relevant position of other layers of target molecular structure model according to laser beam scan path on 3D printing shaping machine, forms target molecular structure model.
As further optimization of the present invention, when building threedimensional model, the model of this three-dimensional modeling comprises following characteristics: the molecular size ratio of target molecular structure model, the length of chemical bond and the bond angle of chemical molecular.
As further optimization of the present invention, when threedimensional model process is formed multilayer two-dimension figure, use and cut layer software threedimensional model is all cut into multi-layer graphical.
As further optimization of the present invention, the synusia of X-Y scheme is often thick is layer by layer 0.01-1.00 μm.
As further optimization of the present invention, in the step of scanning moulding, specifically comprise the following steps: start 3D printing shaping machine equipment; The processing platform of this equipment is laid layer of material powder; Utilize superlaser or electron beam according to the material powder on laser beam scan path scanning machining platform, by the surface being consolidated in processing platform after the material powder fusing of superlaser or electron beam scanning; In above-mentioned clinkering, the processing platform of ground floor figure continues to lay second layer material powder, continue superlaser or electron beam scanning; Repeat to lay and scanning step, until complete the global formation of whole target molecular structure model.
As further optimization of the present invention, material powder is acryl-butadiene-styrene (ABS), Merlon, polyester, polyphenyl, titanium alloy, aluminium alloy, nickel-base alloy, stainless steel, tool steel, copper, noble metal and other can be used for increasing any one in metal that material manufactures, macromolecule and ceramic material.
To achieve these goals, present invention also offers a kind of 3D printing shaping machine, for in the 3D printing shaping method of above-mentioned molecular structure model, comprising can the reciprocating processing platform of in the vertical direction, the top of processing platform is provided with paving powder unit, material powder is laid on processing platform by paving powder unit, the top of paving powder unit is provided with can the generating laser of Emission Lasers bundle, material powder on the laser direct projection processing platform launched in generating laser, can be shaping by material powder according to laser beam scan path in advance.
As further optimization of the present invention, paving powder unit comprises paving powder platform, the side of paving powder platform is provided with the first collection powder groove that material powder can be housed, the opposite side of paving powder platform is provided with the second collection powder groove that material powder can be housed, the top of paving powder unit is also provided with and can collects reciprocating scraper between powder groove at the first collection powder groove and second, and the material powder in collection powder groove can be laid on processing platform by scraper.
As further optimization of the present invention, be provided with scraper rotating shaft between the first collection powder groove and the second collection powder groove, scraper can move back and forth between two collection powder grooves around scraper rotating shaft.
As further optimization of the present invention, the top of processing platform is also provided with heating unit, and heating unit is for heating the material powder be laid on processing platform.
The advantage that the present invention has is, 3D is adopted to print the method manufactured, it is the scanning pattern by conputer controlled focused high-energy laser beam or electron beam, at high temperature local melting dusty material, and successively pile up, thus the entity component of fine and close geometry is directly generated according to three-dimensional computer model, thus it can obtain the molecular structure model model of optimum Match according to the chemical bond difference between target molecular structure Model Molecule, overcome and adopt the structural stability of conventional stick method splicing molecular model bad, compensate for the defect of conventional machine processing technology greatly simultaneously, improve the make efficiency of molecular structure model model, reduce making finished product.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the 3D printing shaping method of Middle molecule structural model of the present invention;
Fig. 2 is the workflow diagram in the present invention on 3D printing shaping machine;
Fig. 3 is the structural representation of 3D printing shaping machine in the present invention.
Detailed description of the invention
Below, by exemplary embodiment, the present invention is specifically described.But should be appreciated that element, structure and feature in an embodiment also can be attached in other embodiments valuably when not describing further.
See Fig. 1 and Fig. 2, as shown in the figure, the 3D printing shaping method of Middle molecule structural model of the present invention, comprises the following steps:
The threedimensional model of establishing target molecular structure model: according to the overall structure of target molecular structure model at three-dimensional drawing software (such as, Three-dimensional CAD Software etc.) on carry out the modeling of threedimensional model, the model of this three-dimensional modeling at least needs to comprise following characteristics: the molecular size ratio of target molecular structure model, the length of chemical bond and the bond angle etc. of chemical molecular, entity structure be can be for this model, also can be engraved structure, specifically do not do requirement; This threedimensional model builds complete by three-dimensional software, this threedimensional model can be exported to ad-hoc location and preserve, so that post-processed;
Above-mentioned threedimensional model process is formed multilayer two-dimension figure: concrete, a layer software is cut in use, and (this is cut layer and can be and cut layer method based on STL model, what also can be CAD directly cuts layer etc.) threedimensional model is all cut into multi-layer graphical according to certain cutting thickness in a certain direction, illustrate, threedimensional model axially can be cut the X-Y scheme synusia that thickness is 0.01-1.00 μm, along the z-axis direction so that better process;
Calculate laser beam scan path and the operation parameter of every one deck X-Y scheme: above-mentioned X-Y scheme is imported special-purpose software, and this special-purpose software can calculate laser beam scan path and the operation parameter of every one deck X-Y scheme automatically according to figure;
By control laser focusing according to laser beam scan path to target molecular structure model every one deck relevant position scanning moulding on 3D printing shaping machine: concrete, first target molecular structure model ground floor relevant position is scanned on 3D printing shaping machine according to laser beam scan path by controlling laser focusing, then Repetitive controller laser focusing scans the relevant position of other layers of target molecular structure model according to laser beam scan path on 3D printing shaping machine, forms target molecular structure model.
Above-mentioned scanning process, concrete is: first start 3D printing shaping machine equipment, the processing platform of this equipment is laid layer of material powder, the thickness of this layer material powder need be not less than the thickness of above-mentioned every layer of X-Y scheme, like this so that guarantee the enough manufacturing objective molecular structure models of material powder, under optimal situation, both thickness should be made equal; Simultaneously this layer material powder can be acryl-butadiene-styrene (ABS), Merlon, polyester, polyphenyl, titanium alloy, aluminium alloy, nickel-base alloy, stainless steel, tool steel, copper, noble metal (comprising gold, silver, platinum group metal as ruthenium, rhodium, palladium, osmium, iridium, platinum) and other can be used for increasing any one in metal that material manufactures, macromolecule and ceramic material, the particle diameter of material powder is generally between 10-100 μm; Superlaser or electron beam is utilized to scan the material powder on described processing platform according to above-mentioned laser beam scan path, by the surface being consolidated in processing platform after the material powder fusing of superlaser or electron beam scanning; In above-mentioned clinkering, the processing platform of ground floor figure continues to lay second layer material powder, continue superlaser or electron beam scanning; Repeat to lay and scanning step, until complete the global formation of whole target molecular structure model.
In order to preventing pollution 3D printing shaping machine, above-mentioned shaping after, shift out overall together with processing platform for the molecular structure model being sintered at processing platform from 3D printing shaping machine, cleaning platform surface and internal float powder, finally can carry out sandblasting, polishing according to different requirements to target molecular structure model, dye, spray paint, the surface treatment such as Vacuum Deposition.
Meanwhile, in the present invention, in order to coordinate completing of above-mentioned 3D printing shaping method, present invention also offers a kind of 3D printing shaping machine, specifically see Fig. 3, is the structural representation of 3D printing shaping machine in the present invention.
As shown in Figure 3,3D printing shaping machine of the present invention, comprising can the reciprocating processing platform 4 of in the vertical direction, and the reciprocating motion of processing platform 4 can by motor or hydraulic control, and this control mode does not do concrete restriction, can be of the prior art any one; The top of processing platform 4 is provided with paving powder unit, material powder is laid on processing platform 4 by paving powder unit, the top of paving powder unit is provided with can the generating laser of Emission Lasers bundle 1, material powder on the laser direct projection processing platform launched in generating laser, can according to the laser beam scan path scanned in advance, by shaping for the material powder that processing platform is laid; The top of processing platform 4 is also provided with heating unit 5, and heating unit 5 is for heating the material powder be laid on processing platform 4.
More specifically, above-mentioned paving powder unit comprises paving powder platform 3, paving powder platform 3 can be fan-shaped, the side of paving powder platform 3 is provided with the first collection powder groove 2 that material powder can be housed, the opposite side of paving powder platform 3 is provided with the second collection powder groove 8 that material powder can be housed, the top of paving powder unit is also provided with and can collects reciprocating scraper 7 between powder groove 8 at the first collection powder groove 2 and second, material powder in collection powder groove can be laid on processing platform 4 by scraper 7, in addition, scraper rotating shaft 6 is provided with between the first collection powder groove 2 and the second collection powder groove 8, scraper 7 can move back and forth between two collection powder grooves around scraper rotating shaft 6.
In order to further illustrate this 3D printing shaping machine, illustrate (herein can see Fig. 2) below in conjunction with its course of work:
When using 3D printing shaping machine to carry out printing shaping target molecular structure model, first the control device of controlled working platform movement is started, processing platform is moved to relevant position, then scraper is started, material powder in collection powder groove is evenly paved with on whole processing platform by scraper, by controlling the material powder on the high energy laser beam 1 direct projection processing platform launched in generating laser, this laser beam scans according to the laser path scanned when to cut layer, realizes laser sintered; Meanwhile, if the temperature on processing platform is not enough, heat by heating unit, until meet temperature on processing platform.When completing the printing of ground floor, processing platform decline unit thickness distance, continues to use powder to be paved with whole processing platform, and equipment heating is also laser sintered.
Be appreciated that the present invention is described by some embodiments, those skilled in the art know, without departing from the spirit and scope of the present invention, can carry out various change or equivalence replacement to these characteristic sum embodiments.In addition, under the teachings of the present invention, can modify to adapt to concrete situation and material to these characteristic sum embodiments and can not the spirit and scope of the present invention be departed from.Therefore, the present invention is by the restriction of specific embodiment disclosed herein, and the embodiment in the right of all the application of falling into all belongs in the scope that the present invention protects.
Claims (10)
1. a 3D printing shaping method for molecular structure model, comprises the following steps:
The threedimensional model of establishing target molecular structure model;
Threedimensional model process is formed multilayer two-dimension figure;
Calculate laser beam scan path and the operation parameter of every one deck X-Y scheme;
Control laser focusing to scan on 3D printing shaping machine target molecular structure model ground floor relevant position according to laser beam scan path;
Repetitive controller laser focusing scans the relevant position of other layers of target molecular structure model according to laser beam scan path on 3D printing shaping machine, forms target molecular structure model.
2. the 3D printing shaping method of molecular structure model according to claim 1, it is characterized in that, when building threedimensional model, the model of this three-dimensional modeling comprises following characteristics: the molecular size ratio of target molecular structure model, the length of chemical bond and the bond angle of chemical molecular.
3. the 3D printing shaping method of molecular structure model according to claim 1, is characterized in that, when threedimensional model process is formed multilayer two-dimension figure, uses and cuts layer software and all cut by threedimensional model and be formed into multi-layer graphical.
4. the 3D printing shaping method of molecular structure model according to claim 3, is characterized in that, the synusia of X-Y scheme every thick be layer by layer 0.01-1.00 μm.
5. the 3D printing shaping method of molecular structure model according to claim 1, is characterized in that, in the step of scanning moulding, specifically comprise the following steps: start 3D printing shaping machine equipment; The processing platform of this equipment is laid layer of material powder; Utilize superlaser or electron beam according to the material powder on laser beam scan path scanning machining platform, by the surface being consolidated in processing platform after the material powder fusing of superlaser or electron beam scanning; In above-mentioned clinkering, the processing platform of ground floor figure continues to lay second layer material powder, continue superlaser or electron beam scanning; Repeat to lay and scanning step, until complete the global formation of whole target molecular structure model.
6. the 3D printing shaping method of molecular structure model according to claim 5, it is characterized in that, material powder is acryl-butadiene-styrene (ABS), Merlon, polyester, polyphenyl, titanium alloy, aluminium alloy, nickel-base alloy, stainless steel, tool steel, copper, noble metal and other can be used for increasing any one in metal that material manufactures, macromolecule and ceramic material.
7. a 3D printing shaping machine, in 3D printing shaping method for molecular structure model described in the claims 1, it is characterized in that, comprising can the reciprocating processing platform of in the vertical direction (4), the top of processing platform (4) is provided with paving powder unit, material powder is laid on processing platform (4) by paving powder unit, the top of paving powder unit is provided with can the generating laser of Emission Lasers bundle (1), material powder on the laser direct projection processing platform (4) launched in generating laser, can be shaping by material powder according to laser beam scan path in advance.
8. 3D printing shaping machine according to claim 7, it is characterized in that, paving powder unit comprises paving powder platform (3), the side of paving powder platform (3) is provided with the first collection powder groove (2) that material powder can be housed, the opposite side of paving powder platform (3) is provided with the second collection powder groove (8) that material powder can be housed, the top of paving powder unit is also provided with and can collects reciprocating scraper (7) between powder groove (8) at the first collection powder groove (2) and second, and the material powder in collection powder groove can be laid on processing platform (4) by scraper (7).
9. 3D printing shaping machine according to claim 8, it is characterized in that, be provided with scraper rotating shaft (6) between first collection powder groove (2) and the second collection powder groove (8), scraper (7) can move back and forth between two collection powder grooves around scraper rotating shaft (6).
10. 3D printing shaping machine according to claim 7, it is characterized in that, the top of processing platform (4) is also provided with heating unit (5), and heating unit (5) is for heating the material powder be laid on processing platform (4).
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| CN105797206A (en) * | 2016-03-11 | 2016-07-27 | 上海拓宝机电科技有限公司 | Biomedical composite implant material and preparing method thereof |
| CN105894931A (en) * | 2016-06-06 | 2016-08-24 | 宁波市铭时三维科技发展有限公司 | Two-dimensional code containing three-dimensional printing method for using molecular structure model as chemical training aid |
| CN106696051A (en) * | 2017-01-24 | 2017-05-24 | 上海普睿玛智能科技有限公司 | Large carbon dioxide laser 3D printing equipment and printing method thereof |
| CN112373016A (en) * | 2020-10-23 | 2021-02-19 | 杭州德迪智能科技有限公司 | Three-dimensional laminated molding method, three-dimensional laminated molding device, electronic device, and storage medium |
| CN114131043A (en) * | 2021-11-18 | 2022-03-04 | 上海电气集团股份有限公司 | Method for improving utilization rate of TC4 titanium alloy powder |
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| CN112373016B (en) * | 2020-10-23 | 2023-02-17 | 杭州德迪智能科技有限公司 | Three-dimensional laminated modeling method, three-dimensional laminated modeling device, electronic device, and storage medium |
| CN114131043A (en) * | 2021-11-18 | 2022-03-04 | 上海电气集团股份有限公司 | Method for improving utilization rate of TC4 titanium alloy powder |
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Application publication date: 20151014 |