CN110466147A - A kind of 3D printing system and the 3D printing method based on it - Google Patents
A kind of 3D printing system and the 3D printing method based on it Download PDFInfo
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- CN110466147A CN110466147A CN201810442775.2A CN201810442775A CN110466147A CN 110466147 A CN110466147 A CN 110466147A CN 201810442775 A CN201810442775 A CN 201810442775A CN 110466147 A CN110466147 A CN 110466147A
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- 238000010146 3D printing Methods 0.000 title claims abstract description 72
- 238000000034 method Methods 0.000 title claims abstract description 49
- 239000000463 material Substances 0.000 claims abstract description 133
- 238000005007 materials handling Methods 0.000 claims abstract description 19
- 239000002131 composite material Substances 0.000 claims abstract description 7
- 238000003466 welding Methods 0.000 claims description 23
- 230000008569 process Effects 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 8
- 238000006073 displacement reaction Methods 0.000 claims description 7
- 229920005989 resin Polymers 0.000 claims description 7
- 239000011347 resin Substances 0.000 claims description 7
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 6
- 229910052786 argon Inorganic materials 0.000 claims description 3
- 239000004568 cement Substances 0.000 claims description 3
- 238000010894 electron beam technology Methods 0.000 claims description 3
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- 238000005476 soldering Methods 0.000 claims description 3
- 210000004243 sweat Anatomy 0.000 claims description 3
- 210000004027 cell Anatomy 0.000 description 14
- 238000007639 printing Methods 0.000 description 9
- 238000000465 moulding Methods 0.000 description 7
- 239000007767 bonding agent Substances 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- 230000035882 stress Effects 0.000 description 5
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- 229920000647 polyepoxide Polymers 0.000 description 2
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
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- 239000011344 liquid material Substances 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/10—Processes of additive manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y10/00—Processes of additive manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Optics & Photonics (AREA)
Abstract
The invention discloses a kind of 3D printing systems, including material cell shelf, materials handling cell, materials handling and connection unit, formed product unit and industrial personal computer unit, it is electrically connected between the material cell shelf, materials handling cell, materials handling and connection unit, formed product unit and industrial personal computer unit, wherein, the material cell in the material cell shelf is preformed material unit.The invention also discloses a kind of 3D printing methods carried out using the 3D printing system.The present invention is because preformed material unit is much bigger volume compared with the maximum single voxel in current 3D printing, with accurate structure and scale and single, polynary or composite material with high performance, it is thus achieved that generated 3D printing product has high speed, high-precision, high performance feature.
Description
Technical field
It is the present invention relates to 3D printing field, in particular to a kind of using the 3D printing system of preformed material unit and based on it
3D printing method.
Background technique
3D printing technique is increasingly subject to bigger concern, and obtains Preliminary Applications in numerous areas, the reason is that, first,
3D printing technique is melting for the new technologies and methods such as Computer Image Processing, three-dimensional imaging and decomposition, advanced material, precision machinery
It closes, itself there is powerful technology temptation；Second, 3D printing belongs to increasing material manufacturing, and in manufacture course of products, there is no materials
Give up, useless consumption, meets the trend demand of current energy-saving and environmental protection, high-efficient development；Third, it is of particular importance that 3D printing
Technology is during industrial new product development, it is no longer necessary to which expensive mold design is processed, no longer needs to wait ability for a long time
Experimental verification considerably reduces the new product development period；4th, for cast molding, 3D printing can quickly provide height
Precision moulding resin sand mold.
Current 3D printing technique, either resin material 3D printing or metal or other materials 3D printing, no matter
Laser as heat source or electric arc or other way as heat source, either centimeter scale 3D printing or meter level even
More large scale 3D printing, in forming process, first, require one molding process of raw material phase transformation of experience, powder or
Silk material needs to melt then solidification；Liquid material, such as light-cured resin are solidifications, etc. under the action of light.The second, at
Type process is that one spot scan of a point is formed, in this way, being necessarily required to each single voxel if to improve precision
It is sufficiently small, precision required for could obtaining；But single voxel is smaller, it is meant that the product of same volume, the single voxel needed
More, the required time is longer, and serious to reduce shaping speed, vice versa.Photocuring face is imaged in third
3D printing, maximum formed precision can achieve micron, submicron order, still, for which only refers to surface resolution,
In depth direction, because of the reasons such as mobility of liquid photocurable resin, prefabricated thickness is also at about 50 microns, it may be said that not
With real micro-nano resolution ratio.4th, for performance, even if not considering precision because in forming process there are phase transformation,
Temperature gradient, material component or tissue gradient etc. inevitably result in last molded product and stress distribution unevenness, material internal occur
The deficiencies of defect, seriously affects the performance of molded product.
Summary of the invention
The object of the present invention is to provide a kind of 3D printing system and based on its 3D printing method, solve in the prior art
3D printing system and 3D printing method based on 3D printing system in the prior art, that there are molding rates is low, formed precision is poor,
Properties of product are not able to satisfy the problem of high-grade, precision and advanced application demand.
To solve the above problems, the present invention provides a kind of 3D printing system, including material cell shelf, material processing list
Member, materials handling and connection unit, formed product unit and industrial personal computer unit, the material cell shelf, material processing list
It is electrically connected between member, materials handling and connection unit, formed product unit and industrial personal computer unit, wherein the material cell
Material cell in shelf is preformed material unit.
Preferably, the preformed material unit has controllable stereochemical structure.
Preferably, the controllable stereochemical structure is in sphere, square, cuboid, trigone, cylindrical body or shoe body
At least one.
Preferably, the bulk range of the preformed material unit is 0.1mm to 1mm.
Preferably, the material that the preformed material unit uses is at least one of homogenous material or composite material.
Preferably, the preformed material unit is made of single stereochemical structure, single bulk, homogenous material.
Preferably, the preformed material unit is made of different stereochemical structures, different spaces size, different materials.
To solve the above problems, the present invention also provides a kind of 3D printing method carried out using the 3D printing system,
It the described method comprises the following steps:
Step 1: carrying out digital modeling to product to be printed, discrete cutting is carried out based on preformed material unit；
Step 2: carrying out outgoing management, driving manipulator to the preformed material unit according to the signal of industrial personal computer output
A preformed material unit is grabbed, the designated position of formed product unit is placed on；
Step 3: carrying out gradually connection management between the preformed material unit according to the signal that industrial personal computer exports, drive
Dynamic materials handling and connection unit work, the preformed material unit placed in next preformed material unit and the first step is connected
It connects；
Step 4: being carried out according to the signal of industrial personal computer output to the relative displacement or lifting displacement of the formed product unit
Management；
Step 5: repeating the above process, the product of 3D printing is obtained.
Preferably, the preformed material unit connection type includes but is not limited to be bonded, welding, riveting, be threadedly coupled.
Preferably, the bonding includes but is not limited to: cementitious, resin bonding, mixing bonding；It is described welding include but
It is not limited to: arc welding, protective atmosphere argon arc welding, laser welding, electron beam welding, sweat soldering, ultrasonic welding；The riveting
It connects including but not limited to: straight/deflection riveting, oblique cutting/rotary riveting, three-body/more bodies riveting.
The beneficial effect of the present invention compared with the prior art is: the 3D provided by the invention using preformed material unit is beaten
Print system and it can be realized that 3D printing formed product speed is fast, formed precision is high, properties of product are excellent based on its 3D printing method.
Detailed description of the invention
Fig. 1 is the schematic diagram of the embodiment of the present invention.
Drawing reference numeral: preformed material unit shelf 1, materials handling cell 2, materials handling and connection unit 3, in molding
Product 4, formed product unit 5, industrial personal computer unit 6
Specific embodiment
Below in conjunction with attached drawing, and technical characteristic of furthermore above-mentioned to the present invention and advantage are clearly and completely described,
Obviously, described embodiment is only section Example of the invention, rather than whole embodiments.
As shown in Figure 1, it is shown that the schematic diagram of the embodiment of the present invention schematically shows a kind of 3D printing of the invention
System, including material cell shelf 1, materials handling cell 2, materials handling and connection unit 3, formed product unit 5 and work
Control machine unit 6, the material cell shelf 1, materials handling cell 2, materials handling and connection unit 3, formed product unit 5 with
And it is electrically connected between industrial personal computer unit 6.Wherein, the material cell in the material cell shelf 1 is preformed material unit.
In preformed material unit shelf 1, the preformed material unit stored can be only one kind, but be usually to have
Several or even tens of kinds of preformed material units, different preformed material units, bulk, stereoeffect, material composition
Or in terms of component when difference, as different preformed material units.The preformed material unit has controllable stereochemical structure.It is described
Controllable stereochemical structure is at least one of sphere, square, cuboid, trigone, cylindrical body or shoe body.It is described prefabricated
The bulk range of material cell is 0.1mm to 1mm.According to actual needs, maximum can also be more than 10mm, even more greatly,
Minimum is prefabricated can be to 10 microns or less.The material of preformed material unit forms, and can be homogenous material, such as carbon steel, stainless
The nonmetallic materials such as the metals such as steel, copper, titanium, aluminium or plastics, fiber, ceramics are also possible to composite material, such as metal/high score
Sub- composite material, metal/cement composite material, ceramic/metal composite materials, ceramics/macromolecule/cement composite material etc..Institute
State preformed material unit be made of single stereochemical structure, single bulk, homogenous material or the preformed material unit by
Different stereochemical structures, different spaces size, different materials composition.Using the preformed material unit of rule, such as millimicro metrical scale
Sphere, square perhaps other design stereochemical structure materials by bonding, welding perhaps other any connection means or
Preformed material unit itself is designed as having the stereochemical structure of connection performance without the use of assisting interconnection technique to carry out self
The connection between preformed material unit is realized in riveting.
Based on the 3D printing method that the 3D printing system carries out, the described method comprises the following steps: step 1: treating
The product of 3D printing carries out digital modeling, carries out discrete cutting based on preformed material unit；Step 2: defeated according to computer software
Signal out carries out outgoing management to the preformed material unit, and driving manipulator grabs a preformed material unit, is placed on
The designated position of formed product unit, wherein manipulator is vacuum suction or air blowing handgrip；Step 3: defeated according to computer software
Signal out drives materials handling and connection unit work to gradually connection management is carried out between the preformed material unit, will
The preformed material unit placed in next preformed material unit and the first step is connect；Step 4: being exported according to computer software
Signal the relative displacement of the formed product unit or lifting displacement are managed；Step 5: repeating the above process, obtain
The product of 3D printing.To in formed product unit 5, that is, form on product platform, the production that 3D printing computer software is exported
The signal of product image becomes the specific product with fine microstructures being really made of preformed material unit.
Preferably, the preformed material unit connection type includes but is not limited to be bonded, welding, riveting, be threadedly coupled.
Preferably, the bonding includes but is not limited to: cementitious, resin bonding, mixing bonding；It is described welding include but
It is not limited to: arc welding, protective atmosphere argon arc welding, laser welding, electron beam welding, sweat soldering, ultrasonic welding；The riveting
It connects including but not limited to: straight/deflection riveting, oblique cutting/rotary riveting, three-body/more bodies riveting.Obviously, of the invention any one
During secondary 3D printing, used connection method can be single a certain bonding, welding, riveting or other connection sides
Method is also possible to a variety of connection methods and is used cooperatively jointly.
Example:
Preformed material unit is single square block, and side length 1mm, thickness 0.5mm, material is that high temperature resistant polyamides is sub-
Amine.A large amount of preformed material units are prepositioned in the preformed material unit shelf 1 of 3D printing system.
Connection type is bonding, and bonding agent is epoxy resin, and bonding agent is in preformed material cell surface in bonding process
Bonding forming is coated with a thickness of 5 microns.
Product 4 in molding, i.e. 3D printing product design be height 20cm, wall thickness 1cm, be open 5cm x 5cm pros
Straight mouth container, the bottom thickness of container are similarly 1cm.
Manipulator is a vacuum grip, catches preformed material unit by air-breathing, preformed material unit is put down in air blowing.
The coating of bonding agent uses a bonding agent coating head, and whenever manipulator picks up preformed material unit, coating head is just
The joint face being aligned in preformed material unit, even spread bonding agent epoxy resin.
Manipulator and bonding agent coating head collectively form carrying and the connection unit 3 of preformed material unit, and movement relies on
Materials handling cell 2 (movement mechanism) in a whole set of 3D printing system is completed.
Using industrial personal computer unit 6 (3D printing software), product to be printed is decomposed into the product of preformed material unit composition,
By exporting preformed material unit and its position one by one, commander's movement mechanism driving manipulator, bonding coating head movement will
Preformed material unit is fixed on the corresponding position based on formed product unit 5, realizes preformed material unit 3D printing method.
The high speed print characteristic of preformed material unit 3D printing method is 0.1mm with 1 single printing shaping spot size
Conventional printing system compare, conventional printing system completes the printing of the square of a thickness 0.5mm, side length 1mm, need beat
Print 500 times, and preformed material unit 3D printing method, it is only necessary to primary, that is to say, that if the two single motion speed phase
Together, the print speed of preformed material unit 3D printing method is 500 times of conventional printing system.
The high-precision printing characteristic of preformed material unit 3D printing method is equally with 1 single printing shaping spot size
The conventional printing system of 0.1mm is compared, two neighboring because there is melting, solidification process when a, single print point are 0.1mm
Space error between point, will be in 0.05mm or more, b, print procedure, because system integrally has heat there are height warm area
Deformation tendency, when print point being caused to be displaced to consecutive points from a bit, there are offset deviation, c, print point (position) quantity be pre-
The error of 500 times of saw lumber material unit 3D printing method, each print point is cumulative, leads to the error of the product of system print more
Greatly, d, the problems such as there are thermal deformation, fault in material, unbalanced stresses in print procedure, also result in bigger trueness error.With this
On the contrary, preformed material unit 3D printing method, first, because preformed material unit be it is prefabricated, single print point is not present
Error problem, second, all processes carry out at the same temperature in print procedure, gradient temperature field is not present, so both
There is no the thermal deformation of system entirety, also there is no thermal stress deformation equal error possibility, third, movement mechanism amount of movement only have
Conventional 1/500, simultaneous displacement precision itself can be as accurate as micron order, largely eliminate single and add up error, the 4th,
Because being prefabricated preformed material unit, there is no melted in situ as conventional 3D printing, solidify bring material
The problems such as defect, unbalanced stress and thus caused error.The above analysis is it is found that preformed material unit 3D printing method has often
Advise the incomparable high-precision printing ability of 3D printing.
The high performance print characteristic of preformed material unit 3D printing method, a, size, solid because of preformed material unit
Structure, material composition can be with optimum choices, and range of choice is virtually limitless big, and selectable single point during conventional 3D printing
Scantling (size causes greatly Product Precision is poor, size is small to cause shaping efficiency low), space structure when molding be not (optional
Select) and material composition (limited selection) then without selection possibility, b, preformed material unit are prefabricated realizations, and there is no conventional
Melted in situ as 3D printing, solidify bring material component or composition defect, material there are stress and stress distribution it is uneven
The problems such as.That is only from material angle, preformed material unit 3D printing method is obtained with excellent high performance 3 d and beats
Print characteristic；Except material property, prefabricated knot that preformed material unit 3D printing method also has conventional 3D printing too far behind to catch up
The programmable excellent properties of structure.Combine, is exactly the high performance print characteristic of preformed material unit 3D printing method.
Particular embodiments described above has carried out further the purpose of the present invention, technical scheme and beneficial effects
It is described in detail, it should be understood that the above is only a specific embodiment of the present invention, the protection being not intended to limit the present invention
Range.It particularly points out, to those skilled in the art, all within the spirits and principles of the present invention, that is done any repairs
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of 3D printing system, including material cell shelf, materials handling cell, materials handling and connection unit, product at
Type unit and industrial personal computer unit, the material cell shelf, materials handling cell, materials handling and connection unit, product at
It is electrically connected between type unit and industrial personal computer unit, which is characterized in that the material cell in the material cell shelf is prefabricated
Material cell.
2. 3D printing system according to claim 1, which is characterized in that the preformed material unit has controllable three-dimensional knot
Structure.
3. 3D printing system according to claim 2, which is characterized in that the controllable stereochemical structure be sphere, square,
At least one of cuboid, trigone, cylindrical body or shoe body.
4. the 3D printing system according to any one of claim 2 to 3, which is characterized in that the preformed material unit
Bulk range is 0.1mm to 1mm.
5. the 3D printing system according to any one of claim 2 to 3, which is characterized in that the preformed material unit makes
Material is at least one of homogenous material or composite material.
6. the 3D printing system according to any one of claim 2 to 3, which is characterized in that the preformed material unit by
Single stereochemical structure, single bulk, homogenous material composition.
7. the 3D printing system according to any one of claim 2 to 3, which is characterized in that the preformed material unit by
Different stereochemical structures, different spaces size, different materials composition.
8. a kind of 3D printing method carried out using 3D printing system described in claim 1, the described method comprises the following steps:
Step 1: carrying out digital modeling to product to be printed, discrete cutting is carried out based on preformed material unit；
Step 2: carrying out outgoing management, driving manipulator crawl to the preformed material unit according to the signal of industrial personal computer output
One preformed material unit, is placed on the designated position of formed product unit；
Step 3: driving material to gradually connection management is carried out between the preformed material unit according to the signal of industrial personal computer output
Material is carried and connection unit work, and the preformed material unit placed in next preformed material unit and the first step is connect；
Step 4: carrying out pipe to the relative displacement or lifting displacement of the formed product unit according to the signal of industrial personal computer output
Reason；
Step 5: repeating the above process, the product of 3D printing is obtained.
9. 3D printing method according to claim 8, which is characterized in that the preformed material unit connection type include but
It is not limited to bonding, welding, riveting, is threadedly coupled.
10. 3D printing method according to claim 9, which is characterized in that the bonding includes but is not limited to: cement is viscous
It connects, resin bonding, mixing bonding；The welding includes but is not limited to: arc welding, protective atmosphere argon arc welding, laser welding,
Electron beam welding, sweat soldering, ultrasonic welding；The riveting includes but is not limited to: straight/deflection riveting, oblique cutting/rotation riveting
It connects, three-body/more bodies riveting.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810442775.2A CN110466147A (en) | 2018-05-10 | 2018-05-10 | A kind of 3D printing system and the 3D printing method based on it |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810442775.2A CN110466147A (en) | 2018-05-10 | 2018-05-10 | A kind of 3D printing system and the 3D printing method based on it |
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| CN110466147A true CN110466147A (en) | 2019-11-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111823584A (en) * | 2020-07-23 | 2020-10-27 | 南京工程学院 | Hybrid 3D printer and printing method thereof |
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| CN103350572A (en) * | 2013-07-18 | 2013-10-16 | 符晓友 | 3D stack printing method and 3D stack printer |
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| CN111823584B (en) * | 2020-07-23 | 2022-03-22 | 南京工程学院 | Hybrid 3D printer and printing method thereof |
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