A physical model making device based on 3D printing technology

Abstract

The present invention discloses a physical model making device based on 3D printing technology, which relates to the technical field of water conservancy engineering, and solves the technical problem of the lack of standardized and precise physical model making devices in the prior art. The physical model making device of the present invention includes an engraving mechanism and a spraying mechanism. The engraving mechanism completes the engraving of the actual terrain based on the collected measured terrain data; the spraying mechanism includes a data control component, a 3D printing component and a verification component. The data control component is used to store the measured data, and the 3D printing component completes the spraying of the model based on the data stored in the data control component. The verification component verifies the model sprayed by the 3D printing component based on the engraving mechanism. That is, the physical model making device of the present invention uses the engraving mechanism to verify the sprayed model, which can improve the accuracy of the model, thereby providing a guarantee for predicting the design results of river regulation and / or large-scale water conservancy and hydropower engineering construction in advance.

Description

Technical Field

[0001] The present invention relates to the technical field of water conservancy engineering, and in particular to a physical model making device based on 3D printing technology. Background Art

[0002] As one of the important means of sediment research, river sediment simulation technology has been rapidly developed. River sediment simulation technology includes sediment entity model and sediment mathematical model. In terms of sediment entity model, a complete set of similarity theory, design method and test technology of river engineering model has been established, and rich experience has been accumulated in the research and solution of a large number of engineering sediment problems. Model test technology includes water-sediment process generalization technology, water-sediment control technology, density flow generation and diversion simulation technology, high-sediment flow simulation technology, and model making technology.

[0003] The movement of water and sediment in natural rivers is very complex and is a three-dimensional problem. It cannot be solved by simple theoretical analysis and calculation at present, and needs to be studied with the help of numerical simulation and physical models. If you want to strictly simulate the movement of water and sediment and the corresponding riverbed deformation, you should use a three-dimensional (or two-dimensional) model. However, there are still considerable difficulties in using two-dimensional and three-dimensional models to simulate river sediment in long river sections and long water and sediment series; for complex three-dimensional water and sediment problems, mathematical models are often limited, and often rely on physical model tests to get relatively satisfactory results, especially for important river regulation and large-scale water conservancy and hydropower project construction issues, which generally need to be demonstrated through sediment physical model tests before they can be implemented.

[0004] However, the prior art lacks a standardized and accurate physical model making device. Therefore, in order to be able to predict the design results in advance, providing a physical model making device has become a technical problem that needs to be solved urgently by those skilled in the art. Summary of the invention

[0005] 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 lack of standardized and accurate physical model making devices in the prior art. The many technical effects that can be produced by the preferred technical solution of the present invention are described in detail below.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] The present invention discloses a physical model making device based on 3D printing technology, comprising an engraving mechanism and a spraying mechanism, wherein the engraving mechanism is connected to the spraying mechanism, wherein the engraving mechanism completes engraving of actual terrain based on collected measured terrain data; the spraying mechanism comprises a data control component, a 3D printing component and a verification component, and the data control component and the verification component are connected to the 3D printing component to control the start and stop of the 3D printing component through the data control component and the verification component; the data control component is used to store measured data, and the 3D printing component completes the spraying of the model based on the data stored in the data control component, the verification component is connected to the engraving mechanism, and the verification component verifies the model sprayed by the 3D printing component based on the engraving mechanism.

[0008] According to a preferred embodiment, the engraving mechanism includes a forklift, which is used to fill the soil and form a density greater than 1.2 t / m 3 of soil.

[0009] According to a preferred embodiment, the engraving mechanism also includes a data acquisition component, a first controller and an engraving component, wherein the data acquisition component is connected to the first controller, and the first controller is connected to the engraving component, wherein the data acquisition component is used to collect actual terrain data and send the collected actual terrain data to the first controller, the first controller generates a first digital elevation model DEM based on the collected actual terrain data, and gives the three-dimensional coordinates and / or elevation values ​​of each point, and the first controller is also used to drive the engraving component to complete the engraving of the actual terrain.

[0010] According to a preferred embodiment, the engraving component includes an engraving drill and a first GPS positioning device, the first GPS positioning device is arranged on the engraving drill and connected to the engraving drill, and the engraving drill and the first GPS positioning device are connected to the first controller, so that the engraving drill and the first GPS positioning device can complete the engraving of the actual terrain by engraving the soil under the drive of the first controller.

[0011] According to a preferred embodiment, the engraving mechanism also includes a soil collecting component, which includes a suction nozzle with a tray and a collecting frame, wherein the suction nozzle with the tray and the collecting frame are connected via a connecting pipe, wherein the suction nozzle with the tray is arranged under the drill bit of the engraving drill rig, and is used to absorb the loose soil engraved by the drill bit, and the suction nozzle with the tray transports the absorbed loose soil to the collecting frame through the connecting pipe.

[0012] According to a preferred embodiment, the spraying mechanism further includes a sand storage tank, a spray assembly and a stirring assembly, wherein the sand storage tank is a cylindrical underground cavity for storing model sand or commercial concrete transported by a forklift, the spray assembly is located above the sand storage tank, and water is added to the model sand or commercial concrete in the sand storage tank through the spray assembly, and the stirring assembly is located in the sand storage tank, and the model sand or commercial concrete and water are evenly stirred through the stirring assembly.

[0013] According to a preferred embodiment, the spraying mechanism also includes a conveying component, which includes a conveying pump and a conveying pipeline, wherein the conveying pump is located in the sand storage tank, one end of the conveying pipeline is connected to the conveying pump, and the other end is connected to the 3D printing component, so that the model sand or commercial concrete in the sand storage tank can be transported to the riverbed through the conveying pump, and the spraying of the model fixed bed and the movable bed can be completed in sequence through the 3D printing component.

[0014] According to a preferred embodiment, the data control component includes a data storage unit and a second controller, wherein the data storage unit is connected to the data acquisition component of the engraving mechanism, and the data storage unit is used to store and / or read the actual terrain data collected by the data acquisition component; the second controller is connected to the data storage unit, and the second controller generates a second digital elevation model DEM based on the actual terrain data stored and / or read by the data storage unit, divides the second digital elevation model DEM into multiple units and gives the elevation value of each unit, and the second controller is also connected to the 3D printing component and is used to drive the 3D printing component to complete the injection molding of the model.

[0015] According to a preferred embodiment, the 3D printing component includes a nozzle, a second GPS positioning device and a laser probe, wherein the nozzle is connected to the outlet of the conveying pipeline, and the second GPS positioning device is arranged on the nozzle and connected to the nozzle, so as to spray the model sand or commercial concrete delivered by the conveying pump to the riverbed through the nozzle and the second GPS positioning device; the laser probe is connected to the data control component, and the laser probe is used to detect the elevation value of the model sprayed by the nozzle and the second GPS positioning device, and make the difference between the elevation value of the model sprayed by the nozzle and the second GPS positioning device and the predetermined value in the data control component meet the production accuracy.

[0016] According to a preferred embodiment, the 3D printing assembly further comprises a drying and shaping device, and the drying and shaping device is used to dry and shape the model sprayed by the nozzle and the second GPS positioning device.

[0017] The physical model making device based on 3D printing technology provided by the present invention has at least the following beneficial technical effects:

[0018] The physical model making device based on 3D printing technology of the present invention comprises an engraving mechanism and a spraying mechanism. The engraving mechanism can complete the engraving of the actual terrain based on the collected measured terrain data; after the spraying mechanism completes the spraying of the model, the engraving mechanism is used to check the sprayed model, so that the produced physical model can conform to the actual terrain. That is, the physical model making device based on 3D printing technology of the present invention uses the engraving mechanism to check the sprayed model, which can improve the accuracy of the model, thereby providing a guarantee for predicting the design results of river regulation and / or large-scale water conservancy and hydropower engineering construction in advance.

[0019] That is, the physical model making device based on 3D printing technology of the present invention can make accurate physical models through the functions of the engraving mechanism and the spraying mechanism, which solves the technical problem of the lack of standardized and accurate physical model making devices in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is a schematic diagram of a preferred embodiment of a physical model making device based on 3D printing technology of the present invention;

[0022] Figure 2 is a cross-sectional view of a preferred embodiment of the engraving mechanism;

[0023] Figure 3 It is a cross-sectional view of a preferred embodiment of the plastic spraying mechanism;

[0024] Figure 4 It is a top view of a preferred embodiment of the injection molding mechanism.

[0025] In the figure: 1. engraving mechanism; 11. data acquisition component; 12. first controller; 13. engraving component; 131. drill bit; 14. earthwork collection component; 141. suction nozzle with tray; 142. collection frame; 143. connecting pipe; 2. spraying mechanism; 21. data control component; 211. data storage unit; 212. second controller; 22. 3D printing component; 221. nozzle; 222. second GPS positioning device; 23. verification component; 24. sand storage tank; 25. spray component; 26. stirring component; 27. conveying component; 271. conveying pump; 272. conveying pipeline. DETAILED DESCRIPTION

[0026] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0027] The following is attached to the instruction manual Figures 1 to 4 The physical model making device based on 3D printing technology in this embodiment is described in detail.

[0028] The physical model making device based on 3D printing technology in this embodiment includes an engraving mechanism 1 and a spraying mechanism 2, and the engraving mechanism 1 and the spraying mechanism 2 are connected, such as Figure 1 As shown. Preferably, the engraving mechanism 1 completes the engraving of the actual terrain based on the collected measured terrain data. Preferably, the spraying mechanism 2 includes 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 to 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. Figure 1 As shown. More preferably, the data control component 21 is used to store the measured data. The 3D printing component 22 completes the spraying of the model based on the data stored in the data control component 21. The checking component 23 is connected to the engraving mechanism 1, and the checking component 23 checks the model sprayed by the 3D printing component 22 based on the engraving mechanism 1.

[0029] Preferably, the engraving mechanism 1 completes the engraving of the actual terrain based on the collected measured terrain data, and reserves the thickness of the commercial concrete to make the model fixed bed and the model sand to make the model movable bed. Preferably, the 3D printing component 22 completes the spraying of the model including using commercial concrete spraying to make the model fixed bed and using model sand spraying to make the model movable bed.

[0030] The physical model making device based on 3D printing technology in this embodiment includes a carving mechanism 1 and a spraying mechanism 2. The carving mechanism 1 can complete the carving of the actual terrain based on the collected measured terrain data; after the spraying mechanism 2 completes the spraying of the model, the carving mechanism 1 is used to check the sprayed model, so that the produced physical model can conform to the actual terrain. That is, the physical model making device based on 3D printing technology in this embodiment uses the carving mechanism 1 to check the sprayed model, which can improve the accuracy of the model, thereby providing a guarantee for predicting the design results of river regulation and / or large-scale water conservancy and hydropower engineering construction in advance.

[0031] That is, the physical model making device based on 3D printing technology in this embodiment can make accurate physical models through the functions of the engraving mechanism 1 and the spraying mechanism 2, which solves the technical problem of the lack of standardized and accurate physical model making devices in the prior art.

[0032] According to a preferred embodiment, the engraving mechanism 1 comprises a forklift. The forklift is used to fill the soil, and the density is greater than 1.2 t / m 3 The engraving mechanism 1 of the preferred technical solution of this embodiment includes a forklift, which is used for filling and rolling. Preferably, the forklift is a general-purpose forklift. After rolling, the density of the soil is determined to be greater than 1.2t / m 3 That's it.

[0033] According to a preferred embodiment, the engraving mechanism 1 further includes a data acquisition component 11, a first controller 12 and an engraving component 13, wherein the data acquisition component 11 is connected to the first controller 12, and the first controller 12 is connected to the engraving component 13. Figure 1 As shown. Preferably, the data acquisition component 11 is used to collect actual terrain data and send the collected 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 the three-dimensional coordinates and / or elevation value of each point. The first controller 12 is also used to drive the carving component 13 to complete the carving of the actual terrain. More preferably, the preferred technical solution of this embodiment collects data by a method in the prior art, and the data acquisition component 11 is a device in the prior art, which will not be described in detail here.

[0034] According to a preferred embodiment, the engraving assembly 13 includes an engraving drill and a first GPS positioning device. Preferably, the first GPS positioning device is arranged on the engraving drill 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 the engraving of the actual terrain by engraving the soil under the drive of the first controller 12. The first GPS positioning device is bound to the drill bit 131 of the engraving drill in the preferred technical solution of this embodiment, and the engraving drill is driven by the first controller 12 to sculpt the actual terrain.

[0035] According to a preferred embodiment, the engraving mechanism 1 further includes a soil collecting assembly 14, which includes a suction nozzle 141 with a tray and a collecting frame 142, and the suction nozzle 141 with a tray and the collecting frame 142 are connected by a connecting pipe 143. Figure 1 and 2 Preferably, the suction nozzle 141 with a tray is arranged below the drill bit 131 of the engraving drill, and is used to absorb the loose soil engraved by the drill bit 131, and the suction nozzle 141 with a tray transports the absorbed loose soil to the collection frame 142 through the connecting pipe 143, as shown in FIG. Figure 2 The engraving mechanism 1 of the preferred technical solution of this embodiment further comprises a soil collecting assembly 14, a suction nozzle 141 with a tray can suck the soil engraved by the drill bit 131, and then transport it to the collecting frame 142 through the connecting pipe 143 for collection.

[0036] According to a preferred embodiment, the spraying mechanism 2 further includes a sand storage tank 24, a spraying component 25 and a stirring component 26. Figure 1 Or as shown in 3 or 4. Preferably, the sand storage tank 24 is a cylindrical underground cavity for storing model sand or commercial concrete transported by a forklift. The spray assembly 25 is located above the sand storage tank 24, and water is added to the model sand or commercial concrete in the sand storage tank 24 through the spray assembly 25. The stirring assembly 26 is located in the sand storage tank 24, and the model sand or commercial concrete is evenly stirred with water through the stirring assembly 26. The spraying mechanism 2 of the preferred technical solution of this embodiment also includes a sand storage tank 24, a spray assembly 25 and a stirring assembly 26. Through the action of the spray assembly 25 and the stirring assembly 26, the model sand or commercial concrete transported by the forklift can be made into model sand or commercial concrete with a certain humidity, which is convenient for the transportation of the conveying assembly 27 and the spraying of the 3D printing assembly 22. Specifically, the humidity of the model sand or commercial concrete can be determined according to actual needs.

[0037] More preferably, the sand storage pool 24 is a cylindrical cavity, that is, 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 needs, for example, the diameter of the upper and lower circular bottom surfaces is 4m, and the depth of the sand storage pool 24 is 3m. More preferably, the spray component 25 is a commonly used water spray device. More preferably, the structure of the stirring component 26 is as follows Figure 3 As shown, it is a vertical shaft agitator including a plurality of blades, so that model sand or commercial concrete and water can be evenly mixed by the agitator.

[0038] According to a preferred embodiment, the spraying mechanism 2 further includes a conveying assembly 27, and the conveying assembly 27 includes a conveying pump 271 and a conveying pipeline 272. Figure 3 As shown. Preferably, the delivery pump 271 is located in the sand storage tank 24, one end of the delivery pipe 272 is connected to the delivery pump 271, and the other end is connected to the 3D printing component 22, so that the model sand or commercial concrete in the sand storage tank 24 is delivered to the riverbed through the delivery pump 271, and the spraying of the model fixed bed and the movable bed is completed in sequence through the 3D printing component 22. The spraying mechanism 2 of the preferred technical solution of this embodiment also includes a delivery component 27, through which the model sand or commercial concrete in the sand storage tank 24 can be delivered to the riverbed. Specifically, the spraying mechanism 2 first uses commercial concrete to make a model fixed bed, and then uses model sand to make a model movable bed.

[0039] According to a preferred embodiment, the data control component 21 includes a data storage unit 211 and a second controller 212. Figure 1 As shown. Preferably, the data storage unit 211 is connected to the data acquisition component 11 of the engraving mechanism 1, and the data storage unit 211 is used to store and / or read the actual terrain data collected 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 the actual terrain data stored and / or read by the data storage unit 211, divides the second digital elevation model DEM into multiple units and gives the elevation value of each unit. The second controller 212 is also connected to the 3D printing component 22, and is used to drive the 3D printing component 22 to complete the spraying of the model. The second controller 212 of the preferred technical solution of this embodiment generates a 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 multiple units and gives the elevation value of each unit, so that the 3D printing component 22 can print one by one based on the multiple units divided by the second controller 212, thereby reducing the printing error and improving the accuracy of the model.

[0040] According to a preferred embodiment, the 3D printing assembly 22 includes a nozzle 221, a second GPS positioning device 222 and a laser probe. Figure 3Or as shown in Figure 4. Preferably, the nozzle 221 is connected to the outlet of the delivery pipe 272, and the second GPS positioning device 222 is arranged on the nozzle 221 and connected to the nozzle 221, so as to spray the model sand or commercial concrete delivered by the delivery pump 271 to the riverbed through the nozzle 221 and the second GPS positioning device 222. The laser probe is connected to the data control component 21, and the laser probe is used to detect the elevation value of the model sprayed by the nozzle 221 and the second GPS positioning device 222, and the difference between the elevation value of the model sprayed by the nozzle 221 and the second GPS positioning device 222 and the predetermined value in the data control component 21 satisfies the manufacturing accuracy. The laser probe of the preferred technical solution of this embodiment is synchronized with the nozzle 221 and / or the second GPS positioning device 222, which can realize the functions of precise navigation and positioning.

[0041] The nozzle 221 of the preferred technical solution of this embodiment is a flexible pipe outlet, and the second controller 212 controls the flexible pipe outlet as a printing probe to spray the model sand or commercial concrete delivered by the delivery pump 271 to the riverbed. At the same time, the laser probe detects the elevation value of the model sprayed by the nozzle 221, and compares the detected elevation value with the predetermined value. When the difference between the two meets the manufacturing accuracy, the next unit is sprayed. The preferred technical solution of this embodiment can make each unit sprayed by the nozzle 221 meet the manufacturing accuracy of the model through the action of the laser probe, thereby improving the standardization and accuracy of the model.

[0042] According to a preferred embodiment, the 3D printing component 22 also includes a drying and shaping device, which is used to dry and shape the model sprayed by 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, which will not be described in detail here. The 3D printing component 22 of the preferred technical solution of this embodiment also includes a drying and shaping device, through which the model sprayed by the nozzle 221 can be immediately shaped to avoid errors caused by the flow of the model.

[0043] According to a preferred embodiment, the method for making a physical model using the physical model making device based on 3D printing technology of this embodiment comprises at least the following steps:

[0044] S1: Carving the actual terrain using the carving mechanism 1. Preferably, carving the actual terrain using the carving mechanism 1 at least includes the following steps:

[0045] The earth is transported by a forklift and compacted to a density greater than 1.2t / m 3 of soil.

[0046] The data acquisition component 11 is used to acquire actual terrain data, and the acquired actual terrain data is sent to the first controller 12 .

[0047] The first controller 12 generates a first digital elevation model DEM, and provides the three-dimensional coordinates and / or elevation value of each point.

[0048] The first controller 12 reads the data and controls the engraving drill to engrave the actual terrain.

[0049] The suction nozzle 141 with a tray is used to absorb the loose soil carved by the drill bit 131, and the absorbed loose soil is transported to the collection frame 142 through the connecting pipe 143 for collection.

[0050] S2: Spraying the physical model using the spraying mechanism 2. Preferably, spraying the physical model using the spraying mechanism 2 includes at least the following steps:

[0051] The model sand or commercial concrete is transported to the sand storage tank 24 by a forklift, and then the model sand or commercial concrete is prepared into model sand or commercial concrete with a certain humidity by using a spraying component 25 and a stirring component 26 .

[0052] The delivery pump 271 is used to deliver the model sand or commercial concrete in the sand storage tank 24 to the riverbed.

[0053] The data storage unit 211 is used to read the actual terrain data collected by the data collection component 11 , and the read actual terrain data is sent to the second controller 212 .

[0054] The second controller 212 generates a second digital elevation model DEM, divides the second digital elevation model DEM into a plurality of units and gives an elevation value of each unit.

[0055] The second controller 212 is used to drive the nozzle 221 to spray the model sand or commercial concrete delivered by the delivery pump 271 onto the riverbed.

[0056] The laser probe is used to detect the elevation value of the model sprayed by the nozzle 221, and the detected elevation value is compared with the predetermined value. When the difference between the two meets the manufacturing accuracy, the next unit of spraying is cycled until the entire physical model is sprayed.

[0057] Specifically, commercial concrete is first used to make a model fixed bed, and then model sand is used to make a model moving bed.

[0058] The sprayed model is checked by using the checking component 23. Specifically, the terrain is checked by using a carving drill, the carved loose soil is sucked by a suction nozzle 141 with a tray, and the sucked loose soil is transported to a collection frame 142 through a connecting pipe 143.

[0059] The physical model produced by the physical model production device based on 3D printing technology in this embodiment can produce a standardized and precise physical model, thereby providing a guarantee for early prediction of the design results of river regulation and / or large-scale water conservancy and hydropower project construction.

[0060] It can be understood that the same or similar parts in this embodiment can refer to each other, and the content not described in detail in some embodiments can refer to the same or similar content in other embodiments.

[0061] It should be noted that, in the description of this application, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in the description of this application, unless otherwise specified, the meaning of "plurality" refers to at least two.

[0062] The "connection" described in the present application may be one or more forms of connection, including data connection, communication connection, wired connection, wireless connection, connection through a physical connector, etc. The specific connection method is well known to technicians in the technical field to which the embodiments of the present application belong.

[0063] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, segment or portion of code that includes one or more executable instructions for implementing the steps of a specific logical function or process, and the scope of the preferred embodiments of the present application includes alternative implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in the reverse order depending on the functions involved, which should be understood by technicians in the technical field to which the embodiments of the present application belong.

[0064] It should be understood that the various parts of the present application can be implemented by hardware, software, firmware or a combination thereof, such as the data control component 21, the check component 23 and the first controller 12 mentioned in the present application. In the above-mentioned embodiment, multiple steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0065] A person skilled in the art may understand that all or part of the steps in the method for implementing the above-mentioned embodiment may be completed by instructing related hardware through a program, and the program may be stored in a computer-readable storage medium, which, when executed, includes one or a combination of the steps of the method embodiment.

[0066] In addition, each functional unit in each embodiment of the present application may be integrated into a processing module, or each unit may exist physically separately, or two or more units may be integrated into one module. The above-mentioned integrated module may be implemented in the form of hardware or in the form of a software functional module. If the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it may also be stored in a computer-readable storage medium.

[0067] The storage medium mentioned above can be a read-only memory, a magnetic disk or an optical disk, etc.

[0068] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0069] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A physical model making device based on 3D printing technology, characterized in that: It comprises an engraving mechanism (1) and a plastic spraying mechanism (2), wherein the engraving mechanism (1) is connected to the plastic spraying mechanism (2), wherein the engraving mechanism (1) completes engraving of the actual terrain based on collected measured terrain data; The 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 to the 3D printing component (22) so as to control the start and stop of the 3D printing component (22) through the data control component (21) and the checking component (23); wherein: The data control component (21) is used to store measured data; the 3D printing component (22) completes the spraying of the model based on the data stored in the data control component (21); the verification component (23) is connected to the engraving mechanism (1); and the verification component (23) verifies the model sprayed by the 3D printing component (22) based on the engraving mechanism (1); The carving mechanism (1) comprises a shovel, which is used for filling soil and forming a soil body with a density greater than 1.2 t / m3 through rolling by the shovel; The engraving mechanism (1) further comprises a data acquisition component (11), a first controller (12) and an engraving component (13), wherein the data acquisition component (11) is connected to the first controller (12), and the first controller (12) is connected to the engraving component (13), wherein: The data acquisition component (11) is used 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 collected actual terrain data, and provides the three-dimensional coordinates and / or elevation value of each point. The first controller (12) is also used to drive the carving component (13) to complete the carving of the actual terrain; The engraving assembly (13) comprises an engraving drill and a first GPS positioning device, wherein the first GPS positioning device is arranged on the engraving drill and connected to the engraving drill. 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 the engraving of the actual terrain by engraving the soil under the drive of the first controller (12); The plastic spraying mechanism (2) further comprises a sand storage tank (24), a spraying component (25) and a stirring component (26), wherein: The sand storage tank (24) is a cylindrical underground cavity for storing model sand or commercial concrete transported by a forklift. The spray assembly (25) is located above the sand storage tank (24), and water is added to the model sand or commercial concrete in the sand storage tank (24) through the spray assembly (25). The stirring component (26) is located in the sand storage tank (24), and the model sand or commercial concrete and water are uniformly stirred by the stirring component (26); The 3D printing component (22) comprises a nozzle (221), a second GPS positioning device (222) and a laser probe, wherein: The nozzle (221) is connected to the outlet of the delivery pipeline (272); the second GPS positioning device (222) is arranged on the nozzle (221) and connected to the nozzle (221), so as to spray the model sand or commercial concrete delivered by the delivery pump (271) onto the riverbed through the nozzle (221) and the second GPS positioning device (222); The laser probe is connected to the data control component (21), and is used to detect the elevation value of the model sprayed by the nozzle (221) and the second GPS positioning device (222), and to ensure that the difference between the elevation value of the model sprayed by the nozzle (221) and the second GPS positioning device (222) and a predetermined value in the data control component (21) satisfies the manufacturing accuracy.

2. The physical model making device based on 3D printing technology according to claim 1, characterized in that: The engraving mechanism (1) further comprises a soil collection assembly (14), wherein the soil collection assembly (14) comprises a suction nozzle (141) with a tray and a collection frame (142), wherein the suction nozzle (141) with a tray and the collection frame (142) are connected via a connecting pipe (143), wherein: The suction nozzle (141) with a tray is arranged below the drill bit (131) of the engraving drill and is used to absorb the loose soil engraved by the drill bit (131), and the suction nozzle (141) with a tray transports the absorbed loose soil to the collection frame (142) through the connecting pipe (143).

3. The physical model making device based on 3D printing technology according to any one of claims 1 to 2, characterized in that: The plastic spraying mechanism (2) further comprises a conveying assembly (27), wherein the conveying assembly (27) comprises a conveying pump (271) and a conveying pipeline (272), wherein: The delivery pump (271) is located in the sand storage tank (24). One end of the delivery pipe (272) is connected to the delivery pump (271), and the other end is connected to the 3D printing component (22), so that the model sand or commercial concrete in the sand storage tank (24) is delivered to the riverbed through the delivery pump (271), and the spraying of the model fixed bed and the movable bed is completed in sequence through the 3D printing component (22).

4. The physical model making device based on 3D printing technology according to any one of claims 1 to 2, characterized in that: The data control component (21) comprises a data storage unit (211) and a second controller (212), wherein: The data storage unit (211) is connected to the data acquisition component (11) of the engraving mechanism (1), and the data storage unit (211) is used to store and / or read actual terrain 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 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, The second controller (212) is also connected to the 3D printing component (22), and is used to drive the 3D printing component (22) to complete the spraying of the model.

5. The physical model making device based on 3D printing technology according to claim 1, characterized in that: The 3D printing assembly (22) further comprises a drying and shaping device, wherein the drying and shaping device is used to dry and shape the model sprayed by the nozzle (221) and the second GPS positioning device (222).

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