CN111231302A - Three-dimensional reconstruction and slicing type 3D printing device and method based on laser ranging - Google Patents
Three-dimensional reconstruction and slicing type 3D printing device and method based on laser ranging Download PDFInfo
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- CN111231302A CN111231302A CN202010013829.0A CN202010013829A CN111231302A CN 111231302 A CN111231302 A CN 111231302A CN 202010013829 A CN202010013829 A CN 202010013829A CN 111231302 A CN111231302 A CN 111231302A
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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
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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
- B29C64/30—Auxiliary operations or equipment
- B29C64/386—Data acquisition or data processing for additive manufacturing
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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
- B29C64/30—Auxiliary operations or equipment
- B29C64/386—Data acquisition or data processing for additive manufacturing
- B29C64/393—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
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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
- B33Y50/00—Data acquisition or data processing for additive manufacturing
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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
- B33Y50/00—Data acquisition or data processing for additive manufacturing
- B33Y50/02—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
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- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Optics & Photonics (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention provides a three-dimensional reconstruction and slicing type 3D printing device based on laser ranging, which belongs to the technical field of 3D printing and comprises a device body, wherein the device body is provided with a scanning area and a printing area; a storage platform is arranged in the scanning area, and a lifting scanning mechanism is arranged in the circumferential direction of the storage platform; a spray head for forming a 3D product and a hot bed platform for bearing the 3D product are arranged in the printing area, and the spray head and the hot bed platform realize three-axis linkage through a three-axis movement mechanism; the control system is used for controlling the action of the three-axis movement mechanism. The invention also provides a three-dimensional reconstruction and slice type 3D printing method based on laser ranging. According to the three-dimensional reconstruction and slicing type 3D printing device based on laser ranging, a target product to be obtained can be directly scanned and printed, a series of existing complex operations that a scanned file is processed by a computer and then printed are omitted, and the three-dimensional reconstruction and slicing type 3D printing device is simple and convenient to operate and high in production efficiency.
Description
Technical Field
The invention belongs to the technical field of 3D printing, and particularly relates to a three-dimensional reconstruction and slicing type 3D printing device and method based on laser ranging.
Background
At present, 3D printing becomes a trend, and is widely applied to the field of design, particularly industrial design, digital product mold opening and the like, the printing of one mold can be completed within several hours, and the time from development to market investment of many products is saved. At present, the existing 3D printing equipment prints the scanned file after being processed by a computer, and has complex operation and low efficiency.
Disclosure of Invention
The invention aims to provide a three-dimensional reconstruction and slicing type 3D printing device based on laser ranging, and aims to solve the problems that existing 3D printing equipment firstly processes scanned files through a computer and then prints the scanned files, and is complex in operation and low in efficiency.
In order to achieve the purpose, the invention adopts the technical scheme that: the three-dimensional reconstruction and slice-cutting type 3D printing device based on laser ranging comprises a device body, wherein the device body is provided with a scanning area and a printing area;
a storage platform used for placing a printing target is arranged in the scanning area, a lifting scanning mechanism is arranged in the circumferential direction of the storage platform, and the scanning mechanism is used for scanning the distance parameter of the printing target;
a spray head for forming a 3D product and a hot bed platform for bearing the 3D product are arranged in the printing area, and the spray head and the hot bed platform realize three-axis linkage through a three-axis movement mechanism;
and the control system is used for receiving the distance parameters of the scanning mechanism to generate scanning signals, analyzing and processing the scanning signals to generate control signals, and controlling the action of the three-axis movement mechanism through the control signals.
As another embodiment of this application, the scanning zone is the box structure, one side opening, the printing zone is located the top in scanning zone, the platform is located the bottom surface of box structure inner chamber.
As another embodiment of this application, the top surface of box structure inner chamber is equipped with the light filling lamp, the light filling lamp is used for shining on the platform print the target.
As another embodiment of this application, scanning mechanism is laser range finder, laser range finder locates storage platform's circumference, the relative lateral wall of box structure inner chamber is equipped with the removal subassembly, it is used for control to remove the subassembly laser range finder goes up and down.
As another embodiment of this application, the printing area includes rectangular frame, the rectangular frame level is located the top of box structure, three-axis motion locates on the rectangular frame, be used for control the shower nozzle with the linkage of hot bed platform triaxial.
As another embodiment of the present application, the three-axis motion mechanism includes an X-displacement assembly, a Y-displacement assembly, and a Z-displacement assembly; an installation frame is arranged above the rectangular frame, and the X-direction displacement assembly and the Y-direction displacement assembly are arranged on the installation frame and used for controlling the spray head to move along the X direction or the Y direction; the Z-direction displacement assembly is arranged in the rectangular frame and used for controlling the hot bed platform to move along the Z direction.
As another embodiment of the application, the control system comprises a position signal collector and a signal processor, wherein the position signal collector is used for collecting the distance parameter of the laser range finder is generated into the scanning signal, and the control signal is processed by the signal processor and used for controlling the action of the three-axis movement mechanism.
The three-dimensional reconstruction and slice-cutting type 3D printing device based on laser ranging has the beneficial effects that: compared with the prior art, the scanning mechanism in the scanning area scans the printed target on the object placing platform to generate distance parameters, the control system collects the distance parameters to generate scanning signals, the scanning signals are analyzed to generate control signals, and the control system controls the action of the three-axis movement mechanism through the control signals to enable the spray head in the printing area to complete the printing of 3D products on the hot bed platform. This device can be directly will want the target product who obtains to scan the back and print out, has saved at present a series of loaded down with trivial details operations that the file after will scanning carries out again printing after the processing of computer again, and is easy and simple to handle, and production efficiency is high.
The invention also provides a three-dimensional reconstruction and slice type 3D printing method based on laser ranging, which comprises the three-dimensional reconstruction and slice type 3D printing device based on laser ranging, and further comprises the following steps:
s1: establishing a polar coordinate system by taking the center of the object placing platform as an original point, generating distance parameters H and H by the scanning mechanism, wherein H is the inner diameter of the scanning mechanism, and H is the distance between the scanning mechanism and a printing target;
s2: the control system collects distance parameters H and H of the scanning mechanism and carries out analysis processing to obtain a, which is H/2-H, and a is the distance of a printing target in a polar coordinate system;
s3: the control system carries out analysis processing to obtain A which is aK, and K is a scaling coefficient;
s4: starting the spray head, and controlling the three-axis movement mechanism to act by the control system according to the value A;
s5: after the triaxial movement mechanism finishes one action, the scanning mechanism ascends by one unit to finish the action of the triaxial movement mechanism of the unit, and the scanning mechanism continuously ascends until the scanning mechanism stops when H is equal to H.
As another embodiment of the present application, in step S1, after the polar coordinate system is established, the H value is corrected.
Compared with the prior art, the three-dimensional reconstruction and slice-cutting 3D printing method based on laser ranging provided by the invention has the advantages that a polar coordinate system is established by taking the center of a storage platform as an original point, a scanning mechanism generates distance parameters H and H, wherein H is the inner diameter of the scanning mechanism, and H is the distance between the scanning mechanism and a printing target; the control system collects distance parameters H and H of the scanning mechanism and carries out analysis processing to obtain a, which is H/2-H, and a is the distance of a printing target in a polar coordinate system; the control system carries out analysis processing to obtain A which is aK, and K is a scaling coefficient; starting the spray head, and controlling the three-axis movement mechanism to act by the control system according to the value A; after the triaxial movement mechanism finishes one action, the scanning mechanism ascends by one unit to finish the action of the triaxial movement mechanism of the unit, and the scanning mechanism continuously ascends until the scanning mechanism stops when H is equal to H. This device can be directly will want the target product who obtains to scan the back and print out, has saved at present a series of loaded down with trivial details operations that the file after will scanning carries out again printing after the processing of computer again, and is easy and simple to handle, and production efficiency is high.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a perspective view of a three-dimensional reconstruction and slice-cutting 3D printing device based on laser ranging according to an embodiment of the present invention;
fig. 2 is a front view of a three-dimensional reconstruction and slice-cutting 3D printing device based on laser ranging according to an embodiment of the present invention;
fig. 3 is a flowchart of a three-dimensional reconstruction and slice-cutting 3D printing method based on laser ranging according to an embodiment of the present invention.
In the figure: 100. a scanning area; 200. a printing area; 300. a placement platform; 400. a scanning mechanism; 401. a laser range finder; 402. a moving assembly; 500. a spray head; 600. a hot bed platform; 700. a three-axis motion mechanism; 701. an X-direction displacement assembly; 702. a Y-direction displacement assembly; 703. a Z-direction displacement assembly; 800. and a light supplement lamp.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 and fig. 2, a three-dimensional reconstruction and slice-cutting 3D printing apparatus based on laser ranging according to the present invention will now be described. A three-dimensional reconstruction and slicing type 3D printing device based on laser ranging comprises a device body, wherein the device body is provided with a scanning area 100 and a printing area 200; a storage platform 300 for placing a printing target is arranged in the scanning area 100, a lifting scanning mechanism 400 is arranged in the circumferential direction of the storage platform 300, and the scanning mechanism 400 is used for scanning the distance parameter of the printing target; a spray head 500 for forming a 3D product and a hot bed platform 600 for bearing the 3D product are arranged in the printing area 200, and the spray head 500 and the hot bed platform 600 realize three-axis linkage through a three-axis movement mechanism 700; the control system is used for receiving the distance parameter of the scanning mechanism 400 to generate a scanning signal, and analyzing and processing the scanning signal to generate a control signal, and the control signal is used for controlling the action of the three-axis movement mechanism 700.
The scanning area 100 is located at the lower part of the device body, the printing area 200 is located at the upper part of the device body, and the printing area 200 can synchronously form a 3D product while the scanning area 100 scans a printing target. The spray head 500 is used for heating and feeding the 3D product; the hot bed platform 600 is used for placing 3D products and for preventing the edge warping of the 3D products during printing.
Compared with the prior art, the three-dimensional reconstruction and slicing type 3D printing device based on laser ranging has the advantages that a scanning mechanism 400 in a scanning area 100 scans a printing target on an object placing platform 300 to generate distance parameters, a control system collects the distance parameters to generate scanning signals, analyzes the scanning signals to generate control signals, and controls a three-axis movement mechanism 700 to act through the control signals, so that a spray head 500 located in a printing area 200 can complete printing of 3D products on a hot bed platform 600. This device can be directly will want the target product who obtains to scan the back and print out, has saved at present a series of loaded down with trivial details operations that the file after will scanning carries out again printing after the processing of computer again, and is easy and simple to handle, and production efficiency is high.
Referring to fig. 1 to 2, a scanning area 100 is a box structure, one side of the scanning area is open, a printing area 200 is located above the scanning area 100, and a placement platform 300 is located on the bottom surface of an inner cavity of the box structure. In this embodiment, the scanning area 100 is a semi-closed box structure, and the target product is placed on the placement platform 300 through an opening on one side. The placement platform 300 is a disk structure, and is convenient for determining the origin of a polar coordinate system.
As a specific embodiment of the three-dimensional reconstruction and slice type 3D printing apparatus based on laser ranging provided by the present invention, please refer to fig. 1 to 2, a light supplement lamp 800 is disposed on the top surface of the inner cavity of the box structure, and the light supplement lamp 800 is used for irradiating a printing target on the placement platform 300. In this embodiment, light filling lamp 800 is the shadowless lamp, installs at the top surface of box structure inner chamber, uses the shadowless lamp to shine and prints the target, can eliminate the shade of printing the target to can reduce and print target color distortion, the scanning mechanism 400 of being convenient for discernment and print the colour of target.
As a specific embodiment of the three-dimensional reconstruction and slice-cutting 3D printing apparatus based on laser ranging provided by the present invention, please refer to fig. 1 to 2, the scanning mechanism 400 is a laser range finder 401, the laser range finder 401 is disposed in the circumferential direction of the storage platform 300, the opposite side walls of the inner cavity of the box structure are provided with moving components 402, and the moving components 402 are used for controlling the laser range finder 401 to ascend and descend. In this embodiment, laser range finder 401 is the ring structure, and the laser range finder probe is installed to inner circle circumference, and removal subassembly 402 is the slide of vertical setting, and laser range finder 401's outer lane is equipped with two relative and slide sliding fit's spout, and spout and slide accessible gear, screw-thread engagement or mechanical force drive such as thrust slide to realize automatic rising through automatically controlled equipment connection motor etc..
Referring to fig. 1 to 2, as a specific embodiment of the three-dimensional reconstruction and slice-cutting 3D printing device based on laser ranging provided by the present invention, a printing area 200 includes a rectangular frame, the rectangular frame is horizontally disposed above a box structure, and a three-axis movement mechanism 700 is disposed on the rectangular frame and is used for controlling the three-axis linkage of the spray head 500 and the thermal bed platform 600. In this embodiment, rectangular frame's lower extreme four corners is equipped with the cushion, and rectangular frame steadily places in the top of box structure through four cushions. Both the showerhead 500 and the hot bed platform 600 are disposed on the rectangular frame. Meanwhile, the three-axis movement mechanism 700 is arranged on the rectangular frame, and the spray head 500 and the hot bed platform 600 realize three-axis linkage through the three-axis movement mechanism 700, namely, the spray head 500 can realize three-dimensional movement relative to the hot bed platform 600 and is used for printing 3D products.
As a specific embodiment of the three-dimensional reconstruction and slice-cutting 3D printing apparatus based on laser ranging provided by the present invention, please refer to fig. 1 to 2, a three-axis motion mechanism 700 includes an X-direction displacement assembly 701, a Y-direction displacement assembly 702, and a Z-direction displacement assembly 703; an installation frame is arranged above the rectangular frame, and the X-direction displacement assembly 701 and the Y-direction displacement assembly 702 are arranged on the installation frame and used for controlling the spray head 500 to move along the X direction or the Y direction; the Z-direction displacement assembly 703 is disposed within the rectangular frame for controlling the movement of the thermal bed platform 600 along the Z-direction. In this embodiment, vertical beams are longitudinally arranged on two sides of the upper portion of the rectangular frame, longitudinal slide rails are arranged on the side walls of the vertical beams, sliders in sliding fit with the slide rails are further arranged on the vertical beams, a vertically arranged lead screw is driven to rotate by a lifting motor fixedly arranged on the rectangular frame, and the lead screw is in threaded fit with the sliders. An X-direction horizontal motor is arranged on one sliding block, a rotating shaft is arranged on the other sliding block, an X-direction belt is arranged between the driving end of the X-direction horizontal motor and the rotating shaft, and the spray head 500 is arranged on the X-direction belt through a connecting piece. The lifting motor drives the screw rod to rotate, and the sliding block is lifted along the sliding rail to drive the spray head 500 to move in the Y direction. The X-direction horizontal motor drives the X-direction belt to rotate, and the nozzle 500 is driven by the connecting piece to move in the X-direction. A Z-direction horizontal motor is arranged in the rectangular frame, a Z-direction belt is installed at the driving end of the Z-direction horizontal motor, and the hot bed platform 600 is installed on the Z-direction belt through a connecting piece. The Z-direction horizontal motor drives the Z-direction belt to rotate, and the hot bed platform 600 is driven by the connecting piece to move in the Z direction. In addition, the inner side of the rectangular frame is further provided with a guide rod, the lower end face of the hot bed platform 600 is provided with a guide sleeve, the axial direction of the guide rod is the same as the conveying direction of the Z-direction belt, and when the hot bed platform 600 moves, the guide sleeve can improve the moving stability of the hot bed platform 600 through the guide of the guide rod. The three-axis movement mechanism 700 is provided with limit switches in the X-direction, Y-direction and Z-direction three-dimensional movement, the limit switches are photoelectric limit switches, and the limit switches are arranged on the X-direction, Y-direction and Z-direction moving edges to prevent collision or separation of all parts and play a certain protection role. The laser range finder 401 is provided with a limit switch on the movable assembly 402, so that the laser range finder 401 can be prevented from being separated.
Referring to fig. 1 to 2, the control system includes a position signal collector and a signal processor, wherein the position signal collector is configured to collect a distance parameter of the laser range finder 401 to generate a scanning signal, and process a control signal through the signal processor to control the movement of the three-axis movement mechanism 700. In this embodiment, the control system further includes a system operation monitoring circuit, an external input circuit, and a driving circuit, where each circuit controls each motor through the main processor, and controls each actual motor under the scheduling control of the main processor, thereby implementing a task of 3D automated printing.
Referring to fig. 3, the present invention further provides a three-dimensional reconstruction and slice-cutting 3D printing method based on laser ranging, including the above three-dimensional reconstruction and slice-cutting 3D printing apparatus based on laser ranging, further including the following steps:
s1: establishing a polar coordinate system by taking the center of the object placing platform 300 as an origin, and generating distance parameters H and H by the scanning mechanism 400, wherein H is the inner diameter of the scanning mechanism 400, and H is the distance between the scanning mechanism 400 and a printing target;
s2: the control system collects distance parameters H and H of the scanning mechanism 400, and carries out analysis processing to obtain a, which is H/2-H, and a is the distance of a printing target in a polar coordinate system;
s3: the control system carries out analysis processing to obtain A which is aK, and K is a scaling coefficient;
s4: the spray head 500 is started, and the control system controls the three-axis movement mechanism 700 to act according to the value A;
s5: after the three-axis movement mechanism 700 completes one action, the scanning mechanism 400 ascends by one unit, the action of the three-axis movement mechanism 700 of the unit is completed, and the scanning mechanism 400 continuously ascends until H is up to H.
Compared with the prior art, the three-dimensional reconstruction and slice-cutting 3D printing method based on laser ranging provided by the invention has the advantages that a polar coordinate system is established by taking the center of a storage platform 300 as an original point, a scanning mechanism 400 generates distance parameters H and H, wherein H is the inner diameter of the scanning mechanism 400, and H is the distance between the scanning mechanism 400 and a printing target; the control system collects distance parameters H and H of the scanning mechanism 400, and carries out analysis processing to obtain a, which is H/2-H, and a is the distance of a printing target in a polar coordinate system; the control system carries out analysis processing to obtain A which is aK, and K is a scaling coefficient; starting the spray head 500, and controlling the three-axis movement mechanism 700 to act by the control system according to the value A; after the three-axis movement mechanism 700 completes one action, the scanning mechanism 400 ascends by one unit, the action of the three-axis movement mechanism 700 of the unit is completed, and the scanning mechanism 400 continuously ascends until H is up to H. This device can be directly will want the target product who obtains to scan the back and print out, has saved at present a series of loaded down with trivial details operations that the file after will scanning carries out again printing after the processing of computer again, and is easy and simple to handle, and production efficiency is high.
As a specific embodiment of the three-dimensional reconstruction and slice-cutting 3D printing method based on laser ranging provided by the present invention, in step S1, after the polar coordinate system is established, the H value is corrected first. In this embodiment, the scanning mechanism 400 is a laser range finder 401, the distance H between the laser range finders 401 is the distance between each pair of stressed optical ranging probes inside the laser range finder 401, and the calibration is re-measurement, because the laser range finder 401 has a certain error (for example, the medium and the light are different) in different environments, the re-measurement and calibration are performed before each use in order to reduce the error.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. A three-dimensional reconstruction and slicing type 3D printing device based on laser ranging is characterized by comprising a device body, wherein the device body is provided with a scanning area and a printing area;
a storage platform used for placing a printing target is arranged in the scanning area, a lifting scanning mechanism is arranged in the circumferential direction of the storage platform, and the scanning mechanism is used for scanning the distance parameter of the printing target;
a spray head for forming a 3D product and a hot bed platform for bearing the 3D product are arranged in the printing area, and the spray head and the hot bed platform realize three-axis linkage through a three-axis movement mechanism;
and the control system is used for receiving the distance parameters of the scanning mechanism to generate scanning signals, analyzing and processing the scanning signals to generate control signals, and controlling the action of the three-axis movement mechanism through the control signals.
2. The laser ranging-based three-dimensional reconstruction and slice-cutting 3D printing device as claimed in claim 1, wherein the scanning area is a box structure with an opening on one side, the printing area is located above the scanning area, and the placement platform is located on the bottom surface of an inner cavity of the box structure.
3. The laser ranging-based three-dimensional reconstruction and slice-cutting 3D printing device as claimed in claim 2, wherein a light supplement lamp is arranged on a top surface of an inner cavity of the box structure, and the light supplement lamp is used for illuminating the printing target on the placement platform.
4. The laser ranging-based three-dimensional reconstruction and slice-cutting 3D printing device according to claim 2 or 3, wherein the scanning mechanism is a laser range finder arranged in the circumferential direction of the storage platform, and opposite side walls of an inner cavity of the box structure are provided with moving assemblies for controlling the laser range finder to ascend and descend.
5. The laser ranging-based three-dimensional reconstruction and slice-cutting 3D printing device as claimed in claim 4, wherein the printing area comprises a rectangular frame horizontally arranged above the box structure, and the three-axis movement mechanism is arranged on the rectangular frame for controlling the three-axis linkage of the spray head and the heat bed platform.
6. The laser ranging-based three-dimensional reconstruction and slice-cutting 3D printing device according to claim 5, wherein the three-axis motion mechanism comprises an X-direction displacement assembly, a Y-direction displacement assembly and a Z-direction displacement assembly; an installation frame is arranged above the rectangular frame, and the X-direction displacement assembly and the Y-direction displacement assembly are arranged on the installation frame and used for controlling the spray head to move along the X direction or the Y direction; the Z-direction displacement assembly is arranged in the rectangular frame and used for controlling the hot bed platform to move along the Z direction.
7. The laser ranging-based three-dimensional reconstruction and slice-cutting 3D printing device as claimed in claim 5, wherein the control system comprises a position signal collector and a signal processor, the position signal collector is configured to collect the distance parameter of the laser ranging apparatus to generate the scanning signal, and the signal processor is configured to process the control signal to control the three-axis movement mechanism to act.
8. A three-dimensional reconstruction and slice-cutting 3D printing method based on laser ranging, comprising a three-dimensional reconstruction and slice-cutting 3D printing device based on laser ranging according to any one of claims 1 to 7, further comprising the steps of:
s1: establishing a polar coordinate system by taking the center of the object placing platform as an original point, wherein the scanning mechanism generates distance parameters H and H, H is the inner diameter of the scanning mechanism, and H is the distance between the scanning mechanism and the printing target;
s2: the control system acquires the distance parameters H and H of the scanning mechanism and carries out analysis processing to obtain a, which is H/2-H, and a is the distance of the printing target in the polar coordinate system;
s3: the control system carries out analysis processing to obtain A ═ aK, and K is a scaling coefficient;
s4: the sprayer is started, and the control system controls the three-axis movement mechanism to act according to the value A;
s5: after the triaxial movement mechanism finishes one action, the scanning mechanism ascends by one unit to finish the action of the triaxial movement mechanism of the unit, and the scanning mechanism continuously ascends until the scanning mechanism stops when H is H.
9. The laser ranging-based three-dimensional reconstruction and slice-cutting 3D printing method as claimed in claim 8, wherein in step S1, after the polar coordinate system is established, the H value is corrected.
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