CN111590712A

CN111590712A - Physical model making devices based on 3D printing technique

Info

Publication number: CN111590712A
Application number: CN202010423660.6A
Authority: CN
Inventors: 李涛; 夏润亮; 余欣; 万占伟; 夏军强; 张俊华; 陈书奎; 马怀宝; 王增辉; 金锦; 王敏; 朱敏; 刘启兴; 李斌; 杨无双; 吴腾; 冯兴凯; 余彦; 李冰
Original assignee: Yellow River Institute of Hydraulic Research
Current assignee: Yellow River Institute of Hydraulic Research
Priority date: 2020-05-19
Filing date: 2020-05-19
Publication date: 2020-08-28

Abstract

The invention discloses a physical model making device based on a 3D printing technology, relates to the technical field of hydraulic engineering, and solves the technical problem that a standardized and accurate physical model making device is lacked in the prior art. The physical model manufacturing device comprises a carving mechanism and a plastic spraying mechanism, wherein the carving mechanism finishes carving of an actual terrain based on collected actually-measured terrain data; the spraying plastics mechanism includes data control subassembly, 3D printing module and checks the subassembly, and the data control subassembly is used for storing measured data, and the spraying plastics of model is accomplished based on the data of data control subassembly storage to the 3D printing module, checks the subassembly and checks the model that the 3D printing module sprayed plastics based on sculpture mechanism. The physical model making device provided by the invention checks the plastic-sprayed model by using the engraving mechanism, and can improve the accuracy of the model, thereby providing guarantee for predicting the design result of river regulation and/or large-scale water conservancy and hydropower engineering construction in advance.

Description

Physical model making devices based on 3D printing technique

Technical Field

The invention relates to the technical field of hydraulic engineering, in particular to a physical model making device based on a 3D printing technology.

Background

River sediment simulation technology is one of important means for sediment research, and is developed rapidly, and comprises a sediment solid model and a sediment mathematical model. In the aspect of sediment solid models, a whole set of similar theory, design method and test technology of river engineering models are established at present, and rich experience is accumulated in the research and solution of a large amount of engineering sediment problems. The model test technology comprises a water and sand process generalization technology, a water and sand control technology, a density flow generation and diversion simulation technology, a high sand-containing water flow simulation technology, a model making technology and the like.

The natural river water and sand movement is very complex, belongs to a three-dimensional problem, can not be solved by simple theoretical analysis and calculation at present, and needs to be researched by means of numerical simulation and a solid model. If the movement of water flow and sediment and the corresponding deformation of the riverbed are to be simulated strictly, a three-dimensional (or two-dimensional) model is adopted. However, the river sediment simulation of the long river reach and long water sediment series by using a two-dimensional and three-dimensional model has considerable difficulty; for the complicated three-dimensional water and sand problem, a mathematical model is often limited, and a satisfactory result can be obtained by means of an entity model test, particularly the important river regulation and the large-scale water conservancy and hydropower engineering construction problem can be implemented by the demonstration of a sediment entity model test.

However, the prior art lacks a standardized and precise physical modeling device. Therefore, in order to predict the design result in advance, it is an urgent technical problem to be solved by those skilled in the art to provide an apparatus for creating a physical model.

Disclosure of Invention

One of the purposes of the present invention is to provide a physical model making device based on 3D printing technology, which solves the technical problem of the prior art that a standardized and precise physical model making device is lacking. The various technical effects that can be produced by the preferred technical solution of the present invention are described in detail below.

In order to achieve the purpose, the invention provides the following technical scheme:

the physical model manufacturing device based on the 3D printing technology comprises a carving mechanism and a plastic spraying mechanism, wherein the carving mechanism is connected with the plastic spraying mechanism, and the carving mechanism finishes carving of an actual terrain based on collected actually-measured terrain data; the plastic spraying mechanism comprises a data control assembly, a 3D printing assembly and a checking assembly, and the data control assembly and the checking assembly are connected with the 3D printing assembly so as to control the 3D printing assembly to start and stop through the data control assembly and the checking assembly; the data control assembly is used for storing measured data, the 3D printing assembly completes the plastic spraying of the model based on the data stored by the data control assembly, the checking assembly is connected with the engraving mechanism, and the checking assembly checks the model of the 3D printing assembly in a plastic spraying mode based on the engraving mechanism.

According to a preferred embodiment, the engraving member comprises a forklift truck for filling with earth and forming a density greater than 1.2t/m by crushing of the forklift truck³The soil body of (2).

According to a preferred embodiment, the engraving mechanism further comprises a data acquisition component, a first controller and an engraving component, wherein the data acquisition component is connected with the first controller, the first controller is connected with the engraving component, the data acquisition component is used for acquiring actual terrain data and sending the acquired actual terrain data to the first controller, the first controller generates a first Digital Elevation Model (DEM) based on the acquired actual terrain data and gives a three-dimensional coordinate and/or an elevation value of each point, and the first controller is further used for driving the engraving component to finish engraving the actual terrain.

According to a preferred embodiment, the carving assembly comprises a carving drilling machine and a first GPS positioning device, the first GPS positioning device is arranged on the carving drilling machine and connected with the carving drilling machine, and the carving drilling machine and the first GPS positioning device are connected with the first controller, so that the carving drilling machine and the first GPS positioning device can complete carving of actual terrain through carving of soil under the driving of the first controller.

According to a preferred embodiment, the engraving mechanism further comprises an earthwork collecting component, the earthwork collecting component comprises a suction nozzle with a tray and a collecting frame, the suction nozzle with the tray and the collecting frame are connected through a connecting pipe, wherein the suction nozzle with the tray is arranged below a drill bit of the engraving drilling machine and used for sucking the granular soil engraved by the drill bit, and the suction nozzle with the tray conveys the sucked granular soil to the collecting frame through the connecting pipe.

According to a preferred embodiment, the plastic spraying mechanism further comprises a sand storage pool, a spraying assembly and a stirring assembly, wherein the sand storage pool is a cylindrical underground cavity and is used for storing model sand or commercial concrete conveyed by a forklift, the spraying assembly is positioned above the sand storage pool and is used for adding water into the model sand or the commercial concrete in the sand storage pool through the spraying assembly, and the stirring assembly is positioned in the sand storage pool and is used for uniformly stirring the model sand or the commercial concrete and the water through the stirring assembly.

According to a preferred embodiment, the spraying mechanism still includes conveying assembly, conveying assembly includes delivery pump and pipeline, wherein, the delivery pump is located store up in the husky pond, pipeline's one end with the delivery pump is connected, the other end with 3D printing assembly connects, with pass through the delivery pump will model sand or commodity concrete in the storage sand pond are carried to the riverbed, and pass through 3D printing assembly accomplishes the spraying of model fixed bed and moving bed successively.

According to a preferred embodiment, the data control assembly comprises a data storage unit and a second controller, wherein the data storage unit is connected with the data acquisition assembly of the engraving mechanism and is used for storing and/or reading the actual topographic data acquired by the data acquisition assembly; the second controller is connected with the data storage unit, generates a second digital elevation model DEM based on actual terrain data stored and/or read by the data storage unit, divides the second digital elevation model DEM into a plurality of units and gives an elevation value of each unit, and is further connected with the 3D printing assembly and used for driving the 3D printing assembly to complete the plastic spraying of the model.

According to a preferred embodiment, the 3D printing assembly comprises a nozzle, a second GPS positioning device and a laser probe, wherein the nozzle is connected with an outlet of a conveying pipeline, and the second GPS positioning device is arranged on the nozzle and connected with the nozzle so as to spray mold sand or commercial concrete conveyed by the conveying pump to a river bed through the nozzle and the second GPS positioning device; the laser probe is connected with the data control assembly and used for detecting the elevation values of the spray nozzle and the model sprayed by the second GPS positioning device and enabling the difference value between the elevation values of the spray nozzle and the model sprayed by the second GPS positioning device and the preset value in the data control assembly to meet the manufacturing accuracy.

According to a preferred embodiment, the 3D printing assembly further comprises a drying and shaping device, and the drying and shaping device is used for drying and shaping the model of the plastic spraying of the nozzle and the second GPS positioning device.

The physical model making device based on the 3D printing technology provided by the invention at least has the following beneficial technical effects:

the physical model manufacturing device based on the 3D printing technology comprises an engraving mechanism and a plastic spraying mechanism, wherein the engraving mechanism can finish engraving of an actual terrain based on collected actually-measured terrain data; after the plastic spraying mechanism finishes the plastic spraying of the model, the plastic spraying model is checked by the carving mechanism, so that the manufactured physical model can conform to the actual terrain. The physical model making device based on the 3D printing technology checks the plastic-sprayed model by using the engraving mechanism, so that the accuracy of the model can be improved, and the design result of river regulation and/or large-scale water conservancy and hydropower engineering construction can be predicted in advance.

The physical model making device based on the 3D printing technology can make an accurate physical model through the functions of the engraving mechanism and the plastic spraying mechanism, and solves the technical problem that a standardized and accurate physical model making device is lacked in the prior art.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a block diagram of a physical modeling device based on 3D printing technology according to a preferred embodiment of the present invention;

FIG. 2 is a cross-sectional view of a preferred embodiment of the engraving mechanism;

FIG. 3 is a cross-sectional view of a preferred embodiment of a plastic injection mechanism;

fig. 4 is a top view of a preferred embodiment of a plastic injection mechanism.

In the figure: 1. an engraving mechanism; 11. a data acquisition component; 12. a first controller; 13. an engraving assembly; 131. a drill bit; 14. an earth collection assembly; 141. a suction nozzle with a tray; 142. a collection frame; 143. a connecting pipe; 2. a plastic spraying mechanism; 21. a data control component; 211. a data storage unit; 212. a second controller; 22. a 3D printing assembly; 221. a nozzle; 222. a second GPS positioning device; 23. a checking component; 24. a sand storage pool; 25. a spray assembly; 26. a stirring assembly; 27. a delivery assembly; 271. a delivery pump; 272. a delivery conduit.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.

The following describes in detail a physical modeling apparatus based on 3D printing technology according to this embodiment with reference to fig. 1 to 4 of the specification.

The physical model making device based on the 3D printing technology in this embodiment includes engraving mechanism 1 and plastic spraying mechanism 2, and engraving mechanism 1 and plastic spraying mechanism 2 are connected, as shown in fig. 1. Preferably, the engraving mechanism 1 completes engraving of the actual terrain based on the collected actually measured terrain data. Preferably, the plastic spraying mechanism 2 comprises a data control component 21, a 3D printing component 22 and a checking component 23, and the data control component 21 and the checking component 23 are connected with the 3D printing component 22 to control the start and stop of the 3D printing component 22 through the data control component 21 and the checking component 23. As shown in fig. 1. More preferably, the data control module 21 is used for storing the measured data. The 3D printing component 22 completes the injection molding of the model based on the data stored by the data control component 21. The checking component 23 is connected with the engraving mechanism 1, and the checking component 23 checks the model of the 3D printing component 22 sprayed plastics based on the engraving mechanism 1.

Preferably, the engraving mechanism 1 finishes engraving the actual terrain based on the collected actually-measured terrain data, and reserves the thickness of a fixed bed for manufacturing the model by using the commercial concrete and a movable bed for manufacturing the model by using the model sand. Preferably, the 3D printing assembly 22 performs the injection molding of the mold including making a mold fixed bed using commercial concrete injection molding and making a mold movable bed using mold sand injection molding.

The physical model manufacturing device based on the 3D printing technology comprises an engraving mechanism 1 and a plastic spraying mechanism 2, wherein the engraving mechanism 1 can finish engraving of an actual terrain based on collected actually-measured terrain data; after the plastic spraying mechanism 2 finishes the plastic spraying of the model, the plastic spraying model is checked by the engraving mechanism 1, so that the manufactured physical model can conform to the actual terrain. This embodiment is based on 3D printing technique's physical model making devices promptly, utilizes engraving mechanism 1 to check the model of spraying plastics, can improve the accuracy of model to provide the guarantee for predicting the design result of river regulation and/or large-scale water conservancy and hydropower engineering construction in advance.

This embodiment is based on 3D printing technique's physical model making devices promptly, through the effect of sculpture mechanism 1 and spraying plastics mechanism 2, can make accurate physical model, has solved the technical problem that lacks standardized, accurate physical model making devices among the prior art.

According to a preferred embodiment, the engraving mechanism 1 comprises a forklift. The forklift is used for filling soil and the density is more than 1.2t/m through rolling compaction of the forklift³The soil body of (2). The engraving member 1 of the preferred embodiment comprises a forklift for filling and rolling. Preferably, the forklift is a general forklift, and the density of the soil body is determined to be more than 1.2t/m through a penetration experiment after rolling³And (4) finishing.

According to a preferred embodiment, the engraving mechanism 1 further comprises a data acquisition assembly 11, a first controller 12 and an engraving assembly 13, the data acquisition assembly 11 being connected to the first controller 12, the first controller 12 being connected to the engraving assembly 13, as shown in fig. 1. Preferably, the data acquisition component 11 is configured to acquire actual terrain data and send the acquired actual terrain data to the first controller 12. The first controller 12 generates a first digital elevation model DEM based on the acquired actual terrain data, and provides a three-dimensional coordinate and/or an elevation value of each point, and the first controller 12 is further configured to drive the engraving assembly 13 to complete engraving of the actual terrain. More preferably, in the preferred technical solution of this embodiment, data is acquired by a method in the prior art, and the data acquisition component 11 is a device in the prior art, which is not described herein again.

According to a preferred embodiment, the engraving assembly 13 comprises an engraving drill and a first GPS positioning device. Preferably, the first GPS positioning device is disposed on and connected to the engraving drill, and the engraving drill and the first GPS positioning device are connected to the first controller 12, so that the engraving drill and the first GPS positioning device can complete engraving of the actual terrain by engraving the soil body under the driving of the first controller 12. In the preferred technical scheme of the embodiment, a drill bit 131 of the carving drilling machine is bound with a first GPS positioning device, and the carving drilling machine is driven by a first controller 12 to sculpture an actual terrain.

According to a preferred embodiment, the engraving mechanism 1 further comprises an earth collection assembly 14, the earth collection assembly 14 comprising a tray-equipped suction nozzle 141 and a collection frame 142, the tray-equipped suction nozzle 141 and the collection frame 142 being connected by a connection pipe 143, as shown in fig. 1 and 2. Preferably, a tray-equipped suction nozzle 141 is provided below the drill 131 of the carving drill for sucking the particulate soil carved by the drill 131, and the tray-equipped suction nozzle 141 transfers the sucked particulate soil to the collection frame 142 through a connection pipe 143, as shown in fig. 2. The carving mechanism 1 of the preferred technical solution of this embodiment further includes an earthwork collecting component 14, and the suction nozzle 141 with a tray can suck the earthwork carved by the drill 131, and then the earthwork is conveyed to the collecting frame 142 through the connecting pipe 143 to be collected.

According to a preferred embodiment, the plastic spraying mechanism 2 further comprises a sand reservoir 24, a spraying assembly 25 and an agitating assembly 26, as shown in fig. 1, 3 or 4. Preferably, the sand reservoir 24 is a cylindrical underground cavity for storing model sand or commercial concrete transported by a forklift. The spraying assembly 25 is positioned above the sand storage pool 24, and water is added to the model sand or the commercial concrete in the sand storage pool 24 through the spraying assembly 25. The stirring assembly 26 is positioned in the sand storage pool 24, and model sand or commercial concrete and water are uniformly stirred by the stirring assembly 26. The plastic spraying mechanism 2 of the preferred technical scheme of this embodiment further comprises a sand storage pool 24, a spraying assembly 25 and a stirring assembly 26, and model sand or commercial concrete conveyed by a forklift can be prepared into model sand or commercial concrete with certain humidity through the effects of the spraying assembly 25 and the stirring assembly 26, so that the conveying of the conveying assembly 27 and the plastic spraying of the 3D printing assembly 22 are facilitated. Specifically, the humidity of the model sand or the commercial concrete can be determined according to actual requirements.

More preferably, the sand storage pool 24 is a cylindrical cavity, i.e. the upper and lower bottom surfaces of the sand storage pool 24 are circular. The size of the sand storage pool 24 can be set according to actual requirements, for example, the diameter of the circular upper and lower bottom surfaces is 4m, and the depth of the sand storage pool 24 is 3 m. More preferably, the shower assembly 25 may be a conventional water spray device. More preferably, the stirring assembly 26 is configured as shown in fig. 3, and is a vertical shaft stirrer including a plurality of blades, so that the model sand or commercial concrete can be uniformly stirred with water by the action of the stirrer.

According to a preferred embodiment, the plastic injection mechanism 2 further comprises a delivery assembly 27, the delivery assembly 27 comprising a delivery pump 271 and a delivery duct 272, as shown in fig. 3. Preferably, the conveying pump 271 is located in the sand storage pool 24, one end of the conveying pipeline 272 is connected with the conveying pump 271, and the other end is connected with the 3D printing assembly 22, so that the model sand or the commercial concrete in the sand storage pool 24 is conveyed to the river bed through the conveying pump 271, and the plastic spraying of the model fixed bed and the model moving bed is successively completed through the 3D printing assembly 22. The plastic spraying mechanism 2 of the preferred technical scheme of the embodiment further comprises a conveying assembly 27, and model sand or commercial concrete in the sand storage pool 24 can be conveyed to a river bed through the action of the conveying assembly 27. Specifically, the plastic spraying mechanism 2 firstly uses commercial concrete to manufacture a model fixed bed, and then uses model sand to manufacture a model moving bed.

According to a preferred embodiment, the data control assembly 21 includes a data storage unit 211 and a second controller 212, as shown in fig. 1. Preferably, the data storage unit 211 is connected to the data acquisition assembly 11 of the engraving mechanism 1, and the data storage unit 211 is used for storing and/or reading the actual topographic data acquired by the data acquisition assembly 11. The second controller 212 is connected to the data storage unit 211, and the second controller 212 generates a second digital elevation model DEM based on actual terrain data stored and/or read by the data storage unit 211, divides the second digital elevation model DEM into a plurality of units and gives an elevation value for each unit. The second controller 212 is also connected to the 3D printing assembly 22 and is configured to drive the 3D printing assembly 22 to complete the injection molding of the model. The second controller 212 of the preferred embodiment generates the second digital elevation model DEM based on the actual terrain data stored and/or read by the data storage unit 211, divides the second digital elevation model DEM into a plurality of units, and gives an elevation value of each unit, so that the 3D printing component 22 can print one by one based on the plurality of units divided by the second controller 212, thereby reducing a printing error and improving the accuracy of the model.

According to a preferred embodiment, the 3D printing assembly 22 comprises a nozzle 221, a second GPS positioning device 222 and a laser probe, as shown in fig. 3 or 4. Preferably, the nozzle 221 is connected to the outlet of the conveying pipe 272, and the second GPS positioning device 222 is disposed on the nozzle 221 and connected to the nozzle 221, so as to spray the model sand or commercial concrete conveyed by the conveying pump 271 onto the river bed through the nozzle 221 and the second GPS positioning device 222. The laser probe is connected with the data control assembly 21 and is used for detecting the elevation value of the model sprayed by the nozzle 221 and the second GPS positioning device 222 and enabling the difference value between the elevation value of the model sprayed by the nozzle 221 and the second GPS positioning device 222 and the preset value in the data control assembly 21 to meet the manufacturing accuracy. The laser probe of the preferred technical scheme of this embodiment is synchronous with the nozzle 221 and/or the second GPS positioning device 222, and can realize the functions of accurate navigation and positioning.

The nozzle 221 of the preferred technical scheme of this embodiment is a flexible pipeline outlet, the second controller 212 controls the flexible pipeline outlet to be used as a printing probe, the model sand or commercial concrete conveyed by the conveying pump 271 is sprayed to the river bed, meanwhile, the laser probe detects the elevation value of the model sprayed by the nozzle 221, the detected elevation value is compared with a preset value, and when the difference between the detected elevation value and the preset value meets the manufacturing precision, the next unit is sprayed. In the preferred technical scheme of the embodiment, each unit of the nozzle 221 for plastic spraying can be in accordance with the manufacturing precision of the model through the action of the laser probe, so that the standardization and the precision of the model can be improved.

According to a preferred embodiment, the 3D printing assembly 22 further comprises a drying and shaping device for drying and shaping the plastic-sprayed model of the nozzle 221 and the second GPS positioning device 222. Preferably, the drying and shaping device is a drying and shaping device commonly used in the prior art, and is not described herein again. The 3D printing assembly 22 of the preferred technical scheme of this embodiment further includes a drying and shaping device, and the model of the nozzle 221 spraying plastics can be shaped immediately by the drying and shaping device, so that errors caused by the flowing of the model are avoided.

According to a preferred embodiment, the method for making the physical model by using the physical model making device based on the 3D printing technology of the embodiment at least comprises the following steps:

s1: the actual topography is engraved with the engraving means 1. Preferably, the engraving of the actual terrain with the engraving means 1 comprises at least the following steps:

the shovel is used for conveying the earthwork, and the density of the earthwork is more than 1.2t/m through the rolling compaction of the shovel³The soil body of (2).

The data acquisition component 11 is used to acquire actual terrain data and to send the acquired actual terrain data to the first controller 12.

A first digital elevation model DEM is generated by the first controller 12 and three dimensional coordinates and/or elevation values for each point are given.

The first controller 12 reads in the data and controls the engraving machine to engrave the actual terrain.

The scattered soil carved by the drill 131 is sucked by the suction nozzle 141 with a tray, and the sucked scattered soil is transferred to the collection frame 142 through the connection pipe 143 to be collected.

S2: and (5) spraying a physical model by using a spraying mechanism 2. Preferably, the injection molding of the physical model by the injection molding mechanism 2 at least comprises the following steps:

the model sand or the commercial concrete is transported to the sand storage pool 24 by a forklift, and the model sand or the commercial concrete is prepared into the model sand or the commercial concrete with certain humidity by the spraying assembly 25 and the stirring assembly 26.

The model sand or the commercial concrete in the sand storage pool 24 is conveyed to the river bed by the conveying pump 271.

The data storage unit 211 is used to read the actual terrain data collected by the data collection assembly 11 and send the read actual terrain data to the second controller 212.

The second digital elevation model DEM is generated by the second controller 212, divided into a plurality of units and given an elevation value for each unit.

The second controller 212 drives the nozzle 221 to spray the model sand or commercial concrete delivered by the delivery pump 271 to the river bed.

And detecting the elevation value of the model sprayed with the plastic by the nozzle 221 by using the laser probe, comparing the detected elevation value with a preset value, and circularly spraying the plastic of the next unit until the whole physical model is sprayed with the plastic when the difference value between the detected elevation value and the preset value meets the manufacturing precision.

Specifically, a model fixed bed is made of commercial concrete, and then a model movable bed is made of model sand.

The plastic-sprayed model is checked by means of a checking assembly 23. Specifically, the terrain is checked by using the carving drilling machine, the carved loose soil is sucked by the suction nozzle 141 with the tray, and the sucked loose soil is conveyed to the collection frame 142 through the connecting pipe 143, so that the terrain checking can be completed.

The physical model manufactured by the physical model manufacturing device based on the 3D printing technology can be used for manufacturing a standardized and precise physical model, so that a guarantee can be provided for predicting the design result of river regulation and/or large-scale water conservancy and hydropower engineering construction in advance.

It is understood that the same or similar parts in the present embodiment may be mutually referred to, and the same or similar contents in other embodiments may be referred to for the contents which are not described in detail in some embodiments.

It should be noted that, in the description of the present application, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Further, in the description of the present application, the meaning of "a plurality" means at least two unless otherwise specified.

The term "connection" as used herein may refer to one or more of a data connection, a communication connection, a wired connection, a wireless connection, a connection via a physical connection, and the like, as will be appreciated by those skilled in the art.

Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and the scope of the preferred embodiments of the present application includes other implementations in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present application.

It should be understood that various portions of the present application may be implemented in hardware, software, firmware, or a combination thereof, such as the data control component 21, the checking component 23, the first controller 12, etc., mentioned herein. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.

It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.

In addition, functional units in the embodiments of the present application may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.

The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.

In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. The physical model manufacturing device based on the 3D printing technology is characterized by comprising an engraving mechanism (1) and a plastic spraying mechanism (2), wherein the engraving mechanism (1) is connected with the plastic spraying mechanism (2), and the engraving mechanism (1) finishes engraving of actual terrain based on collected actually-measured terrain data;

the plastic spraying mechanism (2) comprises a data control assembly (21), a 3D printing assembly (22) and a checking assembly (23), and the data control assembly (21) and the checking assembly (23) are connected with the 3D printing assembly (22) so as to control the starting and stopping of the 3D printing assembly (22) through the data control assembly (21) and the checking assembly (23); wherein the content of the first and second substances,

the data control subassembly (21) are used for storing the measured data, the spraying plastics of model are accomplished to 3D printing module (22) based on the data of data control subassembly (21) storage, check subassembly (23) with sculpture mechanism (1) is connected, and check subassembly (23) based on sculpture mechanism (1) is right the model that 3D printing module (22) sprayed plastics is checked.

2. The physical modeling apparatus based on 3D printing technology according to claim 1, characterized in that the engraving mechanism (1) comprises a forklift, the forklift is used for filling soil, and the density is more than 1.2t/m through the compaction of the forklift³The soil body of (2).

3. The physical modeling device based on 3D printing technology according to claim 2, characterized in that the engraving mechanism (1) further comprises a data acquisition component (11), a first controller (12) and an engraving component (13), the data acquisition component (11) being connected with the first controller (12), the first controller (12) being connected with the engraving component (13), wherein,

the data acquisition component (11) is used for acquiring actual terrain data and sending the acquired actual terrain data to the first controller (12),

the first controller (12) generates a first digital elevation model DEM based on the collected actual terrain data, and gives a three-dimensional coordinate and/or an elevation value of each point, and the first controller (12) is further used for driving the carving assembly (13) to complete carving of the actual terrain.

4. The 3D printing technology based physical modeling apparatus of claim 3, wherein the engraving member (13) includes an engraving drill and a first GPS positioning device, the first GPS positioning device is disposed on and connected to the engraving drill,

and the engraving drill and the first GPS positioning device are connected with the first controller (12), so that the engraving drill and the first GPS positioning device can complete the engraving of the actual terrain by engraving soil under the driving of the first controller (12).

5. The physical modeling apparatus based on 3D printing technology according to claim 3, characterized in that the engraving mechanism (1) further comprises an earth collection assembly (14), the earth collection assembly (14) comprising a tray-equipped suction nozzle (141) and a collection frame (142), the tray-equipped suction nozzle (141) and the collection frame (142) being connected by a connection pipe (143), wherein,

the tray-equipped suction nozzle (141) is arranged below a drill bit (131) of the carving drilling machine and used for adsorbing the loose-grained soil carved by the drill bit (131), and the tray-equipped suction nozzle (141) conveys the adsorbed loose-grained soil to the collection frame (142) through the connecting pipe (143).

6. Physical modelling device based on 3D printing technology, according to one of claims 1 to 5, characterized in that said plastic spraying mechanism (2) further comprises a sand reservoir (24), a spraying assembly (25) and a stirring assembly (26), wherein,

the sand storage pool (24) is a cylindrical underground cavity and is used for storing model sand or commercial concrete conveyed by a forklift,

the spraying assembly (25) is positioned above the sand storage pool (24), and water is added into the model sand or the commercial concrete in the sand storage pool (24) through the spraying assembly (25),

the stirring assembly (26) is positioned in the sand storage pool (24), and the model sand or the commercial concrete and water are uniformly stirred by the stirring assembly (26).

7. The physical modeling apparatus based on 3D printing technology according to claim 6, characterized in that the plastic injection mechanism (2) further comprises a conveying assembly (27), the conveying assembly (27) comprises a conveying pump (271) and a conveying pipe (272), wherein,

the delivery pump (271) is positioned in the sand storage pool (24),

one end of the conveying pipeline (272) is connected with the conveying pump (271), the other end of the conveying pipeline is connected with the 3D printing assembly (22), so that model sand or commercial concrete in the sand storage pool (24) is conveyed to a river bed through the conveying pump (271), and the 3D printing assembly (22) finishes the plastic spraying of a model fixed bed and a model moving bed sequentially.

8. The physical modeling apparatus based on 3D printing technology according to one of claims 1 to 5, characterized in that the data control component (21) includes a data storage unit (211) and a second controller (212), wherein,

the data storage unit (211) is connected with a data acquisition component (11) of the engraving mechanism (1), and the data storage unit (211) is used for storing and/or reading actual topographic data acquired by the data acquisition component (11);

the second controller (212) is connected to the data storage unit (211) and the second controller (212) generates a second digital elevation model DEM based on actual terrain data stored and/or read by the data storage unit (211), divides the second digital elevation model DEM into a plurality of units and gives an elevation value for each unit,

the second controller (212) is further connected with the 3D printing assembly (22) and used for driving the 3D printing assembly (22) to complete the plastic spraying of the model.

9. Physical modelling device based on 3D printing technology, according to one of claims 1 to 5, characterized in that said 3D printing assembly (22) comprises a nozzle (221), a second GPS positioning device (222) and a laser probe, wherein,

the nozzle (221) is connected with an outlet of a conveying pipeline (272), and the second GPS positioning device (222) is arranged on the nozzle (221) and connected with the nozzle (221) so as to spray the model sand or the commercial concrete conveyed by the conveying pump (271) to a river bed through the nozzle (221) and the second GPS positioning device (222);

the laser probe is connected with a data control assembly (21) and is used for detecting the elevation values of the models sprayed by the nozzle (221) and the second GPS positioning device (222) and enabling the difference value between the elevation values of the models sprayed by the nozzle (221) and the second GPS positioning device (222) and the preset value in the data control assembly (21) to meet the manufacturing precision.

10. The 3D printing technology based physical modeling apparatus of claim 9, wherein the 3D printing component (22) further comprises a drying and sizing device for drying and sizing the plastic-sprayed model of the nozzle (221) and the second GPS positioning device (222).