CN114454479A - 3D printer - Google Patents
3D printer Download PDFInfo
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- CN114454479A CN114454479A CN202210189981.3A CN202210189981A CN114454479A CN 114454479 A CN114454479 A CN 114454479A CN 202210189981 A CN202210189981 A CN 202210189981A CN 114454479 A CN114454479 A CN 114454479A
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- Prior art keywords
- moving mechanism
- axis moving
- axis
- printer
- base
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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
- B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
- B29C64/118—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using filamentary material being melted, e.g. fused deposition modelling [FDM]
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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
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
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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
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/227—Driving means
- B29C64/232—Driving means for motion along the axis orthogonal to the plane of a layer
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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
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/227—Driving means
- B29C64/236—Driving means for motion in a direction within the plane of a layer
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/753—Medical equipment; Accessories therefor
- B29L2031/7532—Artificial members, protheses
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- 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 belongs to the technical field of 3D printing, and particularly relates to a 3D printer which comprises an X-axis moving mechanism, a Z-axis moving mechanism, an X-axis rotating mechanism, a base and a printing head, wherein the X-axis moving mechanism or the Z-axis moving mechanism is fixedly arranged on the base, and the X-axis moving mechanism and the Z-axis moving mechanism are mutually matched to realize the movement of the printing head in an XZ plane; the X-axis rotating mechanism is arranged on the base and used for driving the workpiece to be processed to rotate. The 3D printer provided by the invention converts the linear motion of the Y axis into the rotary motion of the X axis, and can print an arc surface cylinder structure containing a mandril; compared with a 3D printer with multi-axis linkage and multiple degrees of freedom, the 3D printer provided by the invention has the advantages that the nozzle direction can be ensured to be vertical and downward, and the dimension precision error caused by material flow due to the spinning angle is avoided.
Description
Technical Field
The invention belongs to the technical field of 3D printing, and particularly relates to a 3D printer.
Background
Processing of ectonexine composite construction, when ectonexine composite construction machine-shaping, the optional usefulness is moulded plastics, the mode that traditional machining and 3D printed is processed, to the ectonexine composite construction that needs the customization, the form of adopting to mould plastics is processed, the cost is too high, adopt traditional machining's mode, material utilization is then too low, lead to the rising of cost, for realizing the customization and the purpose with low costs, the mode that adopts 3D to print is first-selected, but present 3D prints, be vertical rectangular coordinate system 3D and print, can't directly the shaping on the metal rod. Therefore, it is urgently needed to develop a 3D printer suitable for an inner-outer layer composite structure.
Disclosure of Invention
The invention provides a 3D printer aiming at the problem that a vertical rectangular coordinate system cannot be directly formed on a metal bar during 3D printing.
In order to achieve the purpose, the invention adopts the following technical scheme:
A3D printer comprises an X-axis moving mechanism, a Z-axis moving mechanism, an X-axis rotating mechanism, a base and a printing head, wherein the X-axis moving mechanism or the Z-axis moving mechanism is fixedly arranged on the base; the X-axis rotating mechanism is arranged on the base and used for driving the workpiece to be processed to rotate.
Further, the X-axis moving mechanism and the Z-axis moving mechanism are both lead screw sliding mechanisms.
Still further, X axle moving mechanism and Z axle moving mechanism structure are the same, all include mount pad and sliding block be provided with lead screw and optical axis on the mount pad one side of mount pad is provided with driving motor for drive lead screw rotates, sliding block and lead screw threaded connection, with optical axis sliding connection, the sliding block is used for the mount pad or beats printer head.
Further, the lead screw is a ball screw.
Furthermore, X axle rotary mechanism is centre gripping rotary mechanism, including fixing base, servo motor, harmonic speed reducer ware and three-jaw chuck are all installed on the fixing base, servo motor drives the rotation of three-jaw chuck through the harmonic speed reducer ware.
Furthermore, a heat insulation box body is arranged on the base and used for covering the X-axis moving mechanism, the Z-axis moving mechanism, the X-axis rotating mechanism and the printing head.
Further, the print head is a thermal melt print head or an ink print head.
Furthermore, the feeding mode adopted by the printing head is near-end feeding.
Furthermore, the X-axis moving mechanism and the Z-axis moving mechanism are synchronous belt moving mechanisms.
Further, the optical axis can be replaced by a sliding rail.
Compared with the prior art, the invention has the following advantages:
compared with a Cartesian coordinate system 3D printer, the 3D printer provided by the invention can convert Y-axis linear motion into X-axis rotary motion, and can print a cambered surface cylinder structure containing a mandril; compared with a 3D printer with multi-axis linkage and multiple degrees of freedom, the 3D printer provided by the invention has the advantages that the nozzle direction can be ensured to be vertical and downward, and the dimension precision error caused by material flow due to the spinning angle is avoided.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a flow chart in an embodiment of the invention;
in the figure, an X-axis moving mechanism-1, a Z-axis moving mechanism-2, an X-axis rotating mechanism-3, a base-4 and a printing head-5.
Detailed Description
In order to further illustrate the technical solution of the present invention, the present invention is further illustrated by the following examples.
As shown in fig. 1 and 2, a 3D printer includes an X-axis moving mechanism 1, a Z-axis moving mechanism 2, an X-axis rotating mechanism 3, a base 4, and a printing head 5, the Z-axis moving mechanism 2 is fixedly mounted on the base 4, the X-axis moving mechanism 1 is slidably mounted on the Z-axis moving mechanism 2, the printing head 5 is mounted on the X-axis moving mechanism 1, the X-axis moving mechanism 1 and the Z-axis moving mechanism 2 are mutually matched to realize movement of the printing head 5 in an XZ plane, the X-axis moving mechanism 1 and the Z-axis moving mechanism 2 are both screw sliding mechanisms, the X-axis moving mechanism 1 and the Z-axis moving mechanism 2 have the same structure and both include a mounting seat and a sliding block, a lead screw and an optical axis are disposed on the mounting seat, a driving motor is disposed on one side of the mounting seat to drive the lead screw to rotate, and the sliding block is in threaded connection with the lead screw, the sliding block is connected with the optical axis in a sliding manner and is used for installing a mounting seat or a printing head 5; the X-axis rotating mechanism 3 is arranged on the base 4 and used for driving a workpiece to be processed to rotate, the X-axis rotating mechanism 3 is a clamping rotating mechanism and comprises a fixed seat, a servo motor, a harmonic reducer and a three-jaw chuck, the servo motor, the harmonic reducer and the three-jaw chuck are all arranged on the fixed seat, and the servo motor drives the three-jaw chuck to rotate through the harmonic reducer; the base 4 is provided with a heat insulation box body for covering the X-axis moving mechanism 1, the Z-axis moving mechanism 2, the X-axis rotating mechanism 3 and the printing head 5; the printing head 5 is a thermal melting type printing head 5 or an ink type printing head 5, and the feeding mode adopted by the printing head 5 is near-end feeding.
The positions of the X-axis moving mechanism 1 and the Z-axis moving mechanism 2 in the above-described embodiment are interchangeable, i.e.
The X-axis moving mechanism 1 is arranged on the base 4, the Z-axis moving mechanism 2 is arranged on the X-axis moving mechanism 1 in a sliding mode, and the printing head 5 is arranged on the Z-axis moving mechanism 2;
the screw in the above embodiment is a ball screw; the optical axis can also be replaced by a sliding rail.
The X-axis moving mechanism 1 and the Z-axis moving mechanism 2 described in the above embodiments may also be replaced with a timing belt moving mechanism.
The composite artificial bone is processed by the 3D printer, the outer layer of the composite artificial bone is attached with a layer of biological material, such as beta-tricalcium phosphate, polylactic acid PLA, polyether ether ketone PEEK and the like, and the inner layer of the composite artificial bone is a biological magnesium alloy rod.
Firstly, establishing a three-dimensional model according to a defected bone of a patient, analyzing according to the shape of the bone, and determining the diameter of a metal bar according to the minimum diameter of the bone, wherein the diameter of the metal bar needs to be smaller than the minimum diameter of the bone. And (3) slicing by using software, slicing the annular surface by taking the axis of the metal bar as the center, and obtaining the running track according to slicing data to obtain the GCode code. Fix metal bar on X axle rotary mechanism 3, then the 3D printer will automatic operation, directly print the biomaterial on the metal bar just surface, specifically include the following step:
the method comprises the following steps: scanning the focus of a patient to obtain medical imaging data: carrying out electronic Computer Tomography (CT) on the bone defect part of the patient to acquire medical imaging data of the focus part, establishing a 3D model of the focus part of the patient according to the data, checking the fracture section of the broken bone and the like to evaluate the comprehensive condition of the body of the patient;
step two: establishing an artificial bone model according to medical imaging data: establishing a proper artificial bone model according to the 3D model of the bone defect part obtained in the step one, and selecting a reasonable connection mode according to the condition of the bone section and the condition of residual bones of the bone;
step three: analyzing the artificial bone model, and determining the diameter of the metal bar: selecting proper rod diameter and material according to the established artificial skeleton model and the connection mode by taking the minimum shaft diameter position as a reference;
step four: using the slicing software, the bone model was ring sliced: slicing the artificial skeleton model by using slicing software, and slicing by taking the axis of the metal bar as the center and gradually increasing the thickness of the printing material layer to obtain the shape of each layer;
step five: generating a path from the slice data, generating a GCode code: generating a moving path of the printing head and the discharging time of the printing head according to the shape of each layer obtained in the step four, solving the motion of the X-axis motion mechanism and the Z-axis motion mechanism according to the moving path and the discharging time of the printing head, and generating a GCode code;
step six: importing GCode code into a printer: transferring the generated GCcode code to a 3D printer from a computer through a storage medium, and reading the GCcode by the printer;
step seven: installing a metal bar: installing the selected metal bar on an X-axis rotating mechanism on a 3D printer, running the X-axis rotating mechanism in a trial mode, checking whether the axis of the metal bar is overlapped with the axis of the X-axis rotating mechanism, and if the axis of the metal bar is not overlapped with the axis of the X-axis rotating mechanism, adjusting the installation of the metal bar to ensure that the axis of the metal bar is overlapped with the axis of the X-axis rotating mechanism;
step eight: starting a printer, operating the printer according to the GCode code, and printing on the metal bar material: starting a 3D printer, reading a GCode code by the printer, linking three shafts by an X-axis moving mechanism, a Z-axis moving mechanism and an X-axis rotating mechanism according to the GCode code, extruding a raw material by a printing head according to the GCode code, and continuously printing and molding the metal bar;
step nine: and (3) after printing, taking down the artificial bone, and performing surface treatment: after printing, the printed artificial skeleton is taken down, polished to smooth the surface, the joint is processed, and the artificial skeleton is sterilized.
While there have been shown and described what are at present considered to be the essential features and advantages of the invention, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. The utility model provides a 3D printer which characterized in that: comprises an X-axis moving mechanism (1), a Z-axis moving mechanism (2), an X-axis rotating mechanism (3), a base (4) and a printing head (5), the X-axis moving mechanism (1) or the Z-axis moving mechanism (2) is fixedly arranged on the base (4), when the X-axis moving mechanism (1) is arranged on the base (4), the Z-axis moving mechanism (2) is arranged on the X-axis moving mechanism (1) in a sliding way, meanwhile, the printing head (5) is arranged on the Z-axis moving mechanism (2), when the Z-axis moving mechanism (2) is arranged on the base (4), the X-axis moving mechanism (1) is arranged on the Z-axis moving mechanism (2) in a sliding way, meanwhile, the printing head (5) is arranged on the X-axis moving mechanism (1), and the X-axis moving mechanism (1) is matched with the Z-axis moving mechanism (2) to realize the movement of the printing head (5) in an XZ plane; the X-axis rotating mechanism (3) is arranged on the base (4) and used for driving a workpiece to be processed to rotate.
2. A 3D printer according to claim 1, characterized in that: the X-axis moving mechanism (1) and the Z-axis moving mechanism (2) are both screw rod sliding mechanisms.
3. A 3D printer according to claim 2, characterized in that: x axle moving mechanism (1) and Z axle moving mechanism (2) structure are the same, all include mount pad and sliding block be provided with lead screw and optical axis on the mount pad one side of mount pad is provided with driving motor for it rotates to drive the lead screw, sliding block and lead screw threaded connection, with optical axis sliding connection, the sliding block is used for the mount pad or beats printer head (5).
4. A 3D printer according to claim 3, characterized in that: the lead screw is a ball screw.
5. A 3D printer according to claim 1, characterized in that: x axle rotary mechanism (3) are centre gripping rotary mechanism, including fixing base, servo motor, harmonic speed reducer ware and three-jaw chuck are all installed on the fixing base, servo motor drives the rotation of three-jaw chuck through the harmonic speed reducer ware.
6. A 3D printer according to claim 1, characterized in that: the base (4) is provided with a heat preservation box body used for covering the X-axis moving mechanism (1), the Z-axis moving mechanism (2), the X-axis rotating mechanism (3) and the printing head (5).
7. The 3D printer of claim 1, wherein: the print head (5) is a thermal melt print head (5) or an ink print head (5).
8. The 3D printer of claim 1, wherein: the feeding mode adopted by the printing head (5) is near-end feeding.
9. A 3D printer according to claim 1, characterized in that: the X-axis moving mechanism (1) and the Z-axis moving mechanism (2) are synchronous belt moving mechanisms.
10. A 3D printer according to claim 3, characterized in that: the optical axis can also be replaced by a slide rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210189981.3A CN114454479A (en) | 2022-02-28 | 2022-02-28 | 3D printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210189981.3A CN114454479A (en) | 2022-02-28 | 2022-02-28 | 3D printer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114454479A true CN114454479A (en) | 2022-05-10 |
Family
ID=81414931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210189981.3A Pending CN114454479A (en) | 2022-02-28 | 2022-02-28 | 3D printer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114454479A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104625061A (en) * | 2015-02-13 | 2015-05-20 | 济南爱华达新材料有限公司 | Novel comprehensive CNC (computer numerical control) 3D (three-dimensional) printer and application method thereof |
| CN108326307A (en) * | 2017-06-14 | 2018-07-27 | 江苏九钰机械有限公司 | A kind of four axis 3D printing devices and forming method based on wire fused glass pellet |
| US20190111620A1 (en) * | 2017-10-17 | 2019-04-18 | Northrop Grumman Systems Corporation | Five degree of freedom additive manufacturing device |
-
2022
- 2022-02-28 CN CN202210189981.3A patent/CN114454479A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104625061A (en) * | 2015-02-13 | 2015-05-20 | 济南爱华达新材料有限公司 | Novel comprehensive CNC (computer numerical control) 3D (three-dimensional) printer and application method thereof |
| CN108326307A (en) * | 2017-06-14 | 2018-07-27 | 江苏九钰机械有限公司 | A kind of four axis 3D printing devices and forming method based on wire fused glass pellet |
| US20190111620A1 (en) * | 2017-10-17 | 2019-04-18 | Northrop Grumman Systems Corporation | Five degree of freedom additive manufacturing device |
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